CN212899721U

CN212899721U - Mechanical sealing device with threaded pump effect

Info

Publication number: CN212899721U
Application number: CN202021816302.3U
Authority: CN
Inventors: 陈成标; 陈华迪; 林祥春; 万勇; 梅春晓; 陈振生
Original assignee: ZHEJIANG LANDTEC MECHANICAL SEALS CO LTD
Current assignee: ZHEJIANG LANDTEC MECHANICAL SEALS CO LTD
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-06
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a mechanical sealing device with a screw pump effect, which comprises an outer stationary ring component, a push ring component, a movable ring, a main shaft and a shaft sleeve, wherein the shaft sleeve is sleeved on the outer surface of the main shaft; the movable ring is sleeved at the left end of the shaft sleeve, the right side of the shaft sleeve is connected with the static ring, the left side of the push ring assembly is connected with the static ring, and the right side of the push ring assembly is connected with the connecting flange assembly; the outer stationary ring assembly is connected to the right side of the connecting flange assembly through a spring, the right side of the outer stationary ring assembly is connected with an outer moving ring, the right side of the outer moving ring is connected with an outer moving ring seat assembly, the cooling water nozzle is connected with the shaft sleeve, and a threaded pump is arranged at the joint of the cooling water nozzle and the shaft sleeve. The mechanical sealing device with the screw pump effect mainly adopts the screw pump effect to solve the problem of mechanical sealing, the screw pump has small kinetic energy loss, high and uniform pressure, uniform flow and high rotating speed, can achieve the purpose of circulating cooling without connecting circulating water, can be realized by only configuring a container on site, and can also achieve the purpose of saving.

Description

Mechanical sealing device with threaded pump effect

Technical Field

The utility model relates to a mechanical seal technical field specifically is a mechanical seal device of threaded pump effect.

Background

The mechanical sealing device for the chemical industry and slurry pump in the current market generally requires an inlet-outlet circulating water type to achieve the purpose of lubricating and cooling, and the treatment and cost saving of field water are both big problems, so more and more terminal customers in the current market require the improvement of the mechanical sealing, some field conditions do not have the circulating water to achieve the use purpose of the mechanical sealing, and even some materials cannot meet the water condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical seal device of band screw pump effect, it is good to have economic performance, and the pressure of intaking is high and even, and the flow is even, can directly ally oneself with the prime mover, can not connect the circulating water also can reach circulative cooling's purpose, makes things convenient for the treatment of scene to water, also can reach the advantage of using water wisely, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

a mechanical sealing device with a threaded pump effect comprises an outer static ring assembly, a push ring assembly, a movable ring, a main shaft and a shaft sleeve, wherein the shaft sleeve is sleeved on the outer surface of the main shaft;

the movable ring is sleeved at the left end of the shaft sleeve, an O-shaped ring is arranged between the left wall and the shaft sleeve, the right side of the movable ring is connected with a static ring, the left side of the push ring assembly is connected with the static ring, and the right side of the push ring assembly is connected with a connecting flange assembly;

the outer stationary ring assembly is connected to the right side of the connecting flange assembly through a spring, the right side of the outer stationary ring assembly is connected with an outer moving ring, the right side of the outer moving ring is connected with an outer moving ring seat assembly, the cooling water nozzle is connected with the shaft sleeve, and a threaded pump is arranged at the joint of the cooling water nozzle and the shaft sleeve.

Preferably, the right end of the connecting flange assembly is connected with the positioning piece through a flange, the left end of the connecting flange assembly is provided with an O-shaped ring, an O-shaped ring is arranged between the right side of the lower end of the connecting flange assembly and the upper end of the outer stationary ring assembly, an O-shaped ring and a gasket are arranged between the left side of the lower end of the connecting flange assembly and the stationary ring, and the gasket is located on the left side of the.

Preferably, an O-shaped ring is arranged between the right side of the lower end of the outer moving ring and the left side of the outer moving ring assembly, an O-shaped ring is arranged between the shaft sleeve and the positioning sleeve, and an O-shaped ring is arranged between the shaft sleeve and the moving ring.

Preferably, the top end of the outer moving ring component is provided with a screw, the axes of the screw and the outer moving ring component are the same, and the axis of the hexagonal socket head screw and the axis of the lower column body are the same.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the mechanical sealing device with the screw pump effect fixes the shaft sleeve on the main shaft through the clamping ring, the movable ring is tightly connected with the static ring, the outer movable ring, the outer static ring assembly and the outer movable ring seat assembly are tightly connected, and O-shaped rings are arranged among the devices to achieve the sealing of the mechanical device.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view of the surface structure of the present invention;

FIG. 3 is a cross-sectional view of the screw structure of the present invention;

fig. 4 is a sectional view of the water inlet module of the present invention.

In the figure: 1. a clamping ring; 2. a screw; 3. an outer movable ring seat assembly; 4. an O-shaped ring; 5. an outer rotating ring; 6. an outer stationary ring assembly; 7. a spring; 8. a connecting flange assembly; 9. a push ring assembly; 10. a gasket; 11. a stationary ring; 12. a moving ring; 13. a positioning sleeve; 14. a shaft sleeve; 15. positioning plates; 16. a hexagonal socket head screw; 17. a main shaft; 18. and (4) cooling the water nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a mechanical sealing device with a screw pump effect comprises an outer stationary ring assembly 6, a push ring assembly 9, a movable ring 12, a main shaft 17 and a shaft sleeve 14, wherein the shaft sleeve 14 is sleeved on the outer surface of the main shaft 17 to protect the main shaft 17 and facilitate connection with other devices, a clamping ring 1 is sleeved on the right end of the shaft sleeve 14 to fix the shaft sleeve 14, a positioning sleeve 13 is sleeved on the left end of the main shaft 17 to facilitate fixation of the whole device, a gasket 10 is arranged on the left side of the positioning sleeve 13 to protect the device, the movable ring 12 is sleeved on the left end of the shaft sleeve 14, an O-shaped ring 4 is arranged between the left wall and the shaft sleeve 14 to play a sealing role, the right side is connected with the stationary ring 11, the left side of the push ring assembly 9 is connected with the stationary ring 11, the right side is connected with a connecting flange assembly 8 to connect the devices together, the outer stationary ring assembly 6 is connected to the right, avoid the collision damage, the right side is connected with outer rotating ring 5, and outer rotating ring 5 right side is connected with outer rotating ring seat subassembly 3, and cooling water injection well choke 18 is connected with axle sleeve 14, makes things convenient for water access device, and the junction is equipped with the screw pump, and its kinetic energy loss is little, and economic performance is good, and pressure is high and even, and the flow is even, and the rotational speed is high, can directly ally oneself with the prime mover.

Referring to fig. 2, the right end of the connecting flange assembly 8 is flange-connected with the positioning plate 15, the connecting flange assembly 8 is fixed on the device, the left end of the connecting flange assembly 8 is provided with an O-ring 4 for sealing, the O-ring 4 is arranged between the right side of the lower end of the connecting flange assembly and the upper end of the outer stationary ring assembly 6 for sealing, the O-ring 4 and the gasket 10 are arranged between the left side of the lower end of the connecting flange assembly and the stationary ring 11, the gasket 10 is arranged on the left side of the O-ring 4 for sealing and protecting, the O-ring 4 is arranged between the right side of the lower end of the outer movable ring 5 and the left side of the outer movable ring seat assembly 3 for sealing, the O-ring 4 is arranged between the shaft sleeve 14 and the positioning sleeve 13 for sealing, and the O-ring 4.

Referring to fig. 3, the top end of the outer movable ring seat assembly 3 is provided with a screw 2, and the axes of the two are the same, and the hexagonal socket head screw 16 is the same as the axis of the lower column, so that the fixing effect is optimal.

Referring to fig. 4, the cooling water nozzle 18 is disposed inside the connecting flange assembly 8 to ensure stable water intake, the tail of the cooling water nozzle 18 is provided with a screw pump, due to the mutual engagement of the screws and the close fit between the screws and the inner wall of the liner, between the suction port and the discharge port of the pump, one or more sealed spaces are formed continuously at the suction port of the pump along with the rotation and engagement of the screws, the liquid in the suction chamber is sealed therein and continuously pushed from the suction chamber to the discharge port along the axial direction of the screws, the liquid sealed in each space is continuously discharged, just as the case that a nut is continuously pushed forward during the rotation of the screw, when the screw pump works, the liquid enters the sealed space surrounded by the screw and the pump housing after being sucked, when the driving screw rotates, the sealed volume of the screw pump increases the pressure of the screw pump under the extrusion of the screw teeth, and moves along the axial direction, and the liquid outflow rate is also uniform because the screw rotates at a constant speed.

In summary, the following steps: this mechanical seal device with screw pump effect fixes axle sleeve 14 on main shaft 17 through clamp ring 1, the zonulae occludens of rotating ring 12 and quiet ring 11, the zonulae occludens between outer rotating ring 5, outer quiet ring subassembly 6 and the outer rotating ring seat subassembly 3, be equipped with O shape circle 4 between each device, reach mechanical device's sealed, mainly adopt the screw pump effect to solve mechanical seal, the screw pump kinetic energy loss is little, economic performance is good, pressure is high and even, the flow is even, the rotational speed is high, can directly ally oneself with the prime mover, can also reach circulative cooling's purpose without connecing the circulating water, only need dispose a container on the scene and just can realize, make things convenient for the treatment of scene to water, also can reach the purpose of practicing thrift.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mechanical seal device of threaded pump effect, includes outer quiet ring subassembly (6), pushes away ring subassembly (9), rotating ring (12), main shaft (17) and axle sleeve (14), its characterized in that: the shaft sleeve (14) is sleeved on the outer surface of the main shaft (17), the clamping ring (1) is sleeved at the right end of the shaft sleeve (14), the positioning sleeve (13) is sleeved at the left end of the main shaft (17), and the gasket (10) is arranged at the left side of the positioning sleeve (13);

the movable ring (12) is sleeved at the left end of the shaft sleeve (14), an O-shaped ring (4) is arranged between the left wall and the shaft sleeve (14), the right side of the movable ring is connected with a static ring (11), the left side of the push ring assembly (9) is connected with the static ring (11), and the right side of the push ring assembly is connected with a connecting flange assembly (8);

outer quiet ring subassembly (6) are connected on flange subassembly (8) right side through spring (7), and the right side is connected with outer rotating ring (5), and outer rotating ring (5) right side is connected with outer rotating ring seat subassembly (3), and cooling water injection well choke (18) are connected with axle sleeve (14), and the junction is equipped with the screw pump.

2. The mechanical sealing device with the screw pump effect according to claim 1, wherein the right end of the connecting flange assembly (8) is in flange connection with the positioning plate (15), the left end is provided with an O-shaped ring (4), the O-shaped ring (4) is arranged between the right side of the lower end and the upper end of the outer stationary ring assembly (6), the O-shaped ring (4) and the gasket (10) are arranged between the left side of the lower end and the stationary ring (11), and the gasket (10) is positioned on the left side of the O-shaped ring (4).

3. The mechanical sealing device with the screw pump effect according to claim 1, wherein an O-shaped ring (4) is arranged between the right side of the lower end of the outer moving ring (5) and the left side of the outer moving ring seat assembly (3), the O-shaped ring (4) is arranged between the shaft sleeve (14) and the positioning sleeve (13), and the O-shaped ring (4) is arranged between the shaft sleeve (14) and the moving ring (12).

4. A mechanical seal device with screw pump effect according to claim 1, characterized in that the top of the outer movable ring seat component (3) is provided with a screw (2) and the axes of the two are the same, and the hexagonal socket head screw (16) and the axis of the lower column are the same.