CN202418015U

CN202418015U - Balanced cartridge mechanical sealing device for vertical pump

Info

Publication number: CN202418015U
Application number: CN2011204950062U
Authority: CN
Inventors: 单丽琼
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-23
Filing date: 2011-11-23
Publication date: 2012-09-05
Anticipated expiration: 2021-11-23

Abstract

The utility model discloses a balanced cartridge mechanical sealing device for a vertical pump. The balanced cartridge mechanical sealing device comprises a shaft sleeve, wherein one end of the shaft sleeve is fixedly provided with a spring seat, and the other end of the shaft sleeve is provided with a positioning ring which is movably connected with the shaft sleeve; dynamic components and static components are arranged between the spring seat and the positioning ring; the static components are sleeved outside the shaft sleeve and are connected with the positioning ring in a pressing manner; the dynamic components are sleeved outside the shaft sleeve; one end of each dynamic component is elastically connected with the spring seat, and the other end of each dynamic component is contacted with the static components; and the dynamic components are movably connected with the shaft sleeve. The utility model provides the improved balanced cartridge mechanical sealing device for the vertical pump, and the conventional unbalanced split mechanical sealing device is changed into the balanced cartridge mechanical sealing device, the influence of human factors on the use effect of the sealing device is overcome, the effective action area of fluid pressure of the sealing device is reduced correspondingly, and the effect specific pressure of the fluid pressure of the sealing device is also reduced, so that the normal operation of the mechanical sealing device is ensured.

Description

Vertical pump is used the balance type integrated mechanical sealing device

Technical field

The utility model relates to a kind of mechanical seal device, and particularly a kind of vertical pump is used the balance type integrated mechanical sealing device.

Background technique

Split type, the unbalanced type mechanical seal of the general employing of existing vertical multi-stage centrifugal pump, there is following shortcoming in the mechanical seal of this structure:

1, moving assembly is packed into for separating when assembling with quiet assembly, if change mechanical seal, need take water pump apart, so when mechanical seal assembling and replacing, comparatively bother.

2, personal factor is more in assembly process, as will move assembly, when quiet assembly is packed the pump housing into, dynamic and static ring burnishing surface is stained with dust easily and causes burnishing surface to scratch, and influences sealability.

3, the sealing-fluid pressure active area is more than or equal to the seal band area, and when sealing-fluid pressure >=1MPa, sealing-fluid pressure effect specific pressure increases thereupon, so that destroys the fluid film between seal face, makes the mechanical seal cisco unity malfunction.

The model utility content

The utility model is the defective that exists in the above existing technology in order to overcome, and changes existing unbalanced type separate mechanical seal arrangement into the balance type integrated mechanical sealing device.

For realizing above-mentioned purpose, the utility model provides a kind of improved vertical pump to use the balance type integrated mechanical sealing device, comprises axle sleeve; The one of which end is fixed a spring seat, and the axle sleeve the other end has the positioning ring that flexibly connects with axle sleeve, between spring seat and positioning ring, also comprises assembly and quiet assembly; Quiet assembly be set in outside the axle sleeve and with the positioning ring crimping, moving assembly is set in outside the axle sleeve, an end is connected with spring seat elasticity; The other end contacts with quiet assembly, moving assembly and axle sleeve active link.

In technique scheme, said moving assembly comprises rotating ring, rotating ring 0 type circle, rotating seat, spring; Said rotating seat is set in outside the said axle sleeve, and an end is connected with said spring, and the other end and said rotating ring are tightly connected.Said spring is connected with said spring seat elasticity.

In such scheme; Said quiet assembly comprises stationary seat, stationary seat 0 type circle, stationary ring 0 type circle, stationary ring, and stationary ring is placed in outside the said axle sleeve, and an end contacts with said rotating ring; The other end and said stationary seat are tightly connected, and said stationary seat is connected with said positioning ring.

In such scheme, described spring seat has the claw of three convexities that are uniformly distributed with, and described rotating seat all has the claw of three convexities that are uniformly distributed with up and down, and claw staggers each other up and down, and described rotating seat is stuck between the spring seat claw through following claw.

In such scheme, described rotating ring outer ring has three transmission ears that are uniformly distributed with, and described transmission ear is stuck between the upper clipping claw of rotating seat.

Compared with prior art; The utlity model has following beneficial effect: owing to adopted the balance type integrated mechanical sealing; Overcome the influence of personal factor to the sealing using effect; Corresponding the reducing of while sealing-fluid pressure effective active area, sealing-fluid pressure effect specific pressure also reduces, thereby has guaranteed the proper functioning of mechanical seal.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model locating ring structure schematic representation;

Fig. 3 is the utility model stationary seat structural representation;

Fig. 4 is the utility model stationary ring structural representation;

Fig. 5 is the utility model rotating ring structural representation;

Fig. 6 is the utility model rotating seat structural representation;

Fig. 7 is the utility model spring structure schematic representation;

Fig. 8 is the utility model spring seat structural representation;

Fig. 9 is the utility model driving sleeve structural representation.

In conjunction with the accompanying drawing following reference character of mark above that:

The 1-positioning ring; Hexagonal Cock screw in the 2-; The 3-stationary seat; 4-stationary seat 0 type circle; 5-stationary ring 0 type circle; 6-stationary ring 7-rotating ring; 8-rotating ring 0 type circle; The 9-rotating seat; The 10-spring; The 11-spring seat; 0 type circle in the 12-axle; The 13-driving sleeve; The 14-axle; Hexagonal screw hole in the 011-; 071-transmission ear; 091-rotating seat upper clipping claw; Claw under the 092-rotating seat; 111-spring seat claw; 131-driving sleeve through hole; 132-driving sleeve circumferential raised portion; 133-driving sleeve groove.

Embodiment

Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.

In the present embodiment, axle 14 is tightly connected through 0 type circle 12 in the axle with axle sleeve 13; Spring seat 11 is fixed on the driving sleeve 13; Driving sleeve 13 1 ends have three through holes 131 that are uniformly distributed with, and the intermediate portion is circumferential protrusion 132, and the other end has a groove 133; Spring 10 is inserted on the driving sleeve 13, and rotating seat 9 is inserted on the driving sleeve 13; Spring seat 11 has the claw 111 of three convexities that are uniformly distributed with, and rotating seat 9 all has the upper clipping claw 091 of three convexities that are uniformly distributed with, following claw 092 up and down, and claw staggers each other up and down; Following claw 092 is stuck between the claw 111 of spring seat 11; Rotating seat 9 is through rotating ring 0 type circle 8 rotating ring 7 that is tightly connected; The outer ring of rotating ring 7 has three transmission ears 071 that are uniformly distributed with, and rotating ring is stuck between the upper clipping claw 091 of rotating seat 9; Stationary ring 6 is tightly connected through stationary ring 0 type circle 5 with stationary seat 3 and is enclosed within on the driving sleeve 13, with rotating ring 7 plane contact; The stationary seat 3 groove parts stationary seat 0 type circle 4 that is tightly connected; Stationary seat 3 is connected with positioning ring 1, and positioning ring 1 has three screws that are uniformly distributed with 011, is fixedly connected with three through holes 131 on the driving sleeve 13 through interior hexagonal fastening screw trip bolt 2.

When assembling, only need the mechanical seal that assembles is packed into along axle, through stationary seat 0 type circle and pump housing sealed attachment.The present invention makes Seal cage pressure when 1～3Mpa owing to adopted the balance type integrated mechanical sealing, and the mechanical seal proper functioning that remains unchanged, and the assembling of mechanical seal and change have very conveniently improved sealability, have prolonged the working life of product.

More than a disclosed specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.

Claims

1. a vertical pump is used the balance type integrated mechanical sealing device; Comprise axle sleeve, it is characterized in that an end fixes a spring seat, the said axle sleeve the other end has the positioning ring that flexibly connects with axle sleeve; Between said spring seat and positioning ring, also comprise moving assembly and quiet assembly; Said quiet assembly be set in outside the said axle sleeve and with said positioning ring crimping, said moving assembly is set in outside the said axle sleeve, an end is connected with said spring seat elasticity; The other end contacts with said quiet assembly, and said moving assembly and said axle sleeve flexibly connect.

2. mechanical seal device according to claim 1; It is characterized in that; Said moving assembly comprises rotating ring, rotating ring O type circle, rotating seat, spring, and rotating seat is set in outside the said axle sleeve, and an end is connected with said spring; The other end and said rotating ring are tightly connected, and said spring is connected with said spring seat elasticity.

3. mechanical seal device according to claim 1; It is characterized in that; Said quiet assembly comprises stationary seat, stationary seat O type circle, stationary ring O type circle, stationary ring, and stationary ring is placed in outside the said axle sleeve, and an end contacts with said rotating ring; The other end and said stationary seat are tightly connected, and said stationary seat is connected with said positioning ring.

4. mechanical seal device according to claim 2; It is characterized in that; Described spring seat has the claw of three convexities that are uniformly distributed with; Described rotating seat all has the claw of three convexities that are uniformly distributed with up and down, and claw staggers each other up and down, and described rotating seat is stuck between the spring seat claw through following claw.

5. according to the said mechanical seal device of claim 2, it is characterized in that described rotating ring outer ring has three transmission ears that are uniformly distributed with, described transmission ear is stuck between the upper clipping claw of rotating seat.