Graphite sealing gasket fixing structure of vertical multi-stage centrifugal pump
The problem of fixing the graphite gasket is solved by the matching and fixing structure of the impeller mouth ring, the different seat cut tongue and the inner and outer circles of the different cover, which improves the operating stability and service life of the vertical multistage centrifugal pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-03-24
AI Technical Summary
The graphite gaskets of vertical multistage centrifugal pumps are prone to vibration and noise during long-term operation, and cannot be reliably fixed, affecting their service life.
The impeller mouth ring mates with the inner hole of the graphite gasket, the tongue of the different seat is inserted into the opening to fix the circumferential direction, and the inner hole of the different cover and the outer circle of the different seat mate to fix the axial direction, ensuring the reliable fixation of the graphite gasket.
It improves the stability of graphite gaskets, reduces operating noise and vibration, and extends the service life of vertical multistage centrifugal pumps.
Smart Images
Figure CN224032818U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to centrifugal pump field especially stand type multistage centrifugal pump graphite sealing gasket fixed. BACKGROUND
[0002] The stand type multistage centrifugal pump works through the centrifugal movement of water by impeller rotation, and the water pump must be filled with water in the pump before starting, and the water pump can be started, the graphite sealing gasket is used as the water pump accessory, and the impeller and the sealing impeller suction inlet are fixed, the sealing between the impeller and the cavity is guaranteed, the graphite sealing gasket cannot be fixed in the circumferential direction, and under long-time operation, the water pump can vibrate and generate noise, and the service life of the stand type multistage centrifugal pump is affected. SUMMARY
[0003] The utility model discloses a kind of stand type multistage centrifugal pump graphite sealing gasket fixed structures, and the utility model discloses the graphite sealing gasket of impeller, different cover, graphite sealing gasket and different seat are fixed.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] A kind of stand type multistage centrifugal pump graphite sealing gasket fixed structure, including impeller, different cover, graphite sealing gasket and different seat composition, the impeller includes the mouth ring for the cooperation of graphite sealing gasket and sealing effect, the different seat includes the fixed tongue for graphite sealing gasket and the inner hole matched with different seat, the graphite sealing gasket includes the opening for circumferential fixation, and the different seat includes the outer circle for the axial fixation of graphite sealing gasket.
[0006] Compared with prior art, the utility model has the advantages that:
[0007] In the utility model, the inner hole of graphite sealing gasket is matched with the position of impeller mouth ring, it is guaranteed that the water thrown by impeller does not leak to next stage, the opening of graphite sealing gasket is clamped into the opening of different seat tongue, it is guaranteed that the circumferential of graphite sealing gasket is fixed, the inner hole of different cover and the outer circle of different seat are matched, it is guaranteed that the axial of graphite sealing gasket is fixed, the reliable fixation of graphite sealing gasket is guaranteed, and the utility model has the advantages of simple structure, convenient operation, solve the problem of difficult fixation of graphite sealing gasket, greatly improve the stability when running impeller, reduce the noise and vibration of stand type multistage centrifugal pump, and improve the service life of stand type multistage centrifugal pump. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is structural schematic diagram.
[0009] Figure 2 It is assembly schematic diagram.
[0010] Figure 3 It is the schematic diagram of impeller.
[0011] Figure 4 This is a schematic diagram of an irregular cap.
[0012] In the figure: 1 Impeller, 1-1 Impeller mouth ring, 2 Different cover, 2-1 Different cover tongue, 2-2 Different cover mating inner hole, 3 Graphite sealing gasket, 3-1 Graphite sealing gasket opening, 4 Different seat, 4-1 Different seat mating outer circle. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] like Figures 1-4 As shown, the impeller 1-1 impeller mouth ring is fitted with the inner hole of the graphite gasket 3 to achieve a seal at the impeller mouth ring, ensuring that the water thrown out by the impeller will not leak to the next stage. Then, the opening of the graphite gasket 3-1 is fitted with the tongue position of the cover 2-1 to fix the graphite gasket circumferentially. Then, the graphite gasket 3 is placed in the middle of the cover 2 and the seat 4, and the inner hole of the cover 2 is fitted with the outer circle of the seat 4 to fix the graphite gasket axially, ensuring that the graphite gasket is reliably fixed.
Claims
1. A graphite gasket fixing structure, characterized in that, It includes an impeller, a cover, a graphite gasket, and a seat; the impeller is provided with a mouth ring for engaging with the inner hole of the graphite gasket to achieve a seal; The cover has a tongue and a mating inner hole; the graphite gasket has an opening for circumferential fixation by engaging with the tongue of the cover; the seat has a mating outer circle for axial fixation by engaging with the mating inner hole of the cover.
2. The graphite gasket fixing structure according to claim 1, wherein the fixing structure includes a cap, the cap being used for axial fixing of the graphite gasket.
3. The graphite gasket fixing structure according to claim 1, wherein the fixing structure includes a different seat, and the different seat and the different cover are used for axial fixing of the graphite gasket.
4. The graphite gasket fixing structure according to claim 1, wherein the cover includes a tongue, the tongue being used for circumferential fixing of the graphite gasket.