KR200288958Y1 - Vertical Multi-Stage Centrifugal Pump - Google Patents

Abstract

The present invention relates to a vertical multistage centrifugal pump, and more particularly, to give a hydraulic inflation pressure by applying an appropriate inclination to a cylindrical out sleeve [FIG. 2 107] and an out sleeve [FIG. 2 107] and a pump head. [Fig. 2 101] and the pump body [Fig. 2 108] to float the joint to reduce the vibration caused by the rotation of the pump, and the method of fixing the impeller and the shaft in the spline fixing method of the rib (Fig. 4) and the lock nut By using the soft touch joint method to receive the effect of improving the efficiency of the pump.

Description

Vertical Multi-Stage Centrifugal Pump

The present invention relates to a centrifugal pump that is set up vertically. In the related art, an out sleeve [FIG. 1 07] is vertically erected in a pump body [08] to form a flow path with a guide vane [FIG. 1 06] and is sucked into an inlet. The fluid flows through this flow path to the outlet so that it only serves as a passage for the fluid. In addition, the pump head [FIG. 1 01] and the pump body [FIG. 1 08] tightening method are vulnerable to vibration and the like by simply bending the head cover and pressing it.

Impeller [Fig. 1 05] and Shaft [Fig. 04] joint method, by processing the spline [Fig. 3] to the shaft and impeller joint, the vibration between the shaft and the impeller may occur due to the clearance between the shaft and the shaft manufacturing cost I put a lot.

In order to solve the problems with the prior art described above, the present invention provides an out sleeve [FIG. 2 107] and a pump body [FIG. 108] to allow pressure boosting when the fluid passes as well as the passage of the fluid. The proper angle is given to the sleeve to hydrodynamically increase the pressure. Also, when the out sleeve [FIG. 2 107] is jointed to the pump body [FIG. 108] and the pump head [FIG. 2 101], the ends of the separator [FIG. 2 117] and the head cover [FIG. 2 102] can be elastic. The detailed diagram of FIG. 2 is bent as shown in FIGS. A and B to fit an out sleeve [FIG. 107] so that the vibration or water hammer of the shaft can exert the elastic portion and the damping effect.

When assembling the impeller [Fig. 2 105] and the shaft [Fig. 2 104], insert the sleeve [Fig. 4 120] into the impeller as shown in Fig. 4, and fasten the locking ring [Fig. 4 119] to the threaded part of the sleeve. After locking the sleeve and tightening the lock nut on the threaded part at the end of the sleeve, the slotted groove 9 (not shown) can be fixed in the direction parallel to the center of the sleeve threaded part to fix the shaft and impeller. It is a structure to ensure that.

1 is a cross-sectional view of the main portion of the conventional vertical multistage centrifugal pump.

Figure 2 is a vertical multi-stage centrifugal pump cross-sectional view of the present application

Figure 3 is a detailed view of the conventional shaft and impeller fixing method

Figure 4 is a detailed view of the shaft and impeller fixing method to which the present invention is applied

Figure 5 is a vertical multi-stage centrifugal pump boosting simulation chart to which the present invention is applied

■ Explanation of the main parts of this invention ■

101: pump head 102: head cover 104: shaft

105 Impera 106: Guide vane 107: Out sleeve

108; pump body 111: mechanical seal 115: gasket

118: lock nut 119: locking ring 120: sleeve

■ Conventional ■

01: pump head 02: head cover 04: shaft

05 Imperra 06: Guide Vane 07: Out Three

08; pump body 11: mechanical seal 15: gasket

18: Bush 19: Locking ring

2 and 4 will be described in detail with respect to the structure of the subject innovation. The present invention is made of a conventional vertical multi-stage centrifugal pump with an outsleeve [FIG. 2 107] having a constant angle and inserted into the pump body [FIG. 2 108] and the pump head [FIG. 2 101]. 2 114] rotates the shaft [FIG. 2 104] rotates a plurality of impellers (FIG. 2 105) fixed to the shaft to generate a centrifugal force to the fluid is sucked into the inlet [FIG. 2 INLET] The aspirated fluid rises up to the head cover [FIG. 102] through the process of changing the velocity energy into the pressure energy in the guide vane [FIG. 2 106], and then the outer wall and the outer sleeve [FIG. 2 107]. ] The fluid descends through the trapezoidal flow path formed between the inner lines and flows out to the discharge port (FIG. 2 OUTLET). The separators [Fig. 2 117] and the head cover [Fig. 2 102] sms [Fig. 2 A, B] are bent in presses and have elastic structures. The pump bodies [Fig. 2 108] and the pump head [Fig. ] Is fixed to the structure.

Also, as in FIG. 4, the imperator [FIG. 2. 4 105 is a shaft [Fig. 2, 4 104] is fixed to the sleeve (Fig. 4 120), the locking ring (Fig. 4 119), the lock nut (Fig. 4 118).

As described in detail above, the vertical multistage centrifugal pump provided by the present invention [FIG. 2] has the same capacity as that of the conventional pump [FIG. 1]. ), The pump can be miniaturized and the vibration noise can be reduced by making the separator and the head cover elastic. The soft touch joint between the impeller and the shaft can reduce vibration and noise because there is no play between the shaft and the impeller, and the manufacturing cost can be reduced because the spline grooves are not processed on the shaft. It is devised.

Claims (3)

The base [110] has fluid INLET and OUTLET on the left and right, respectively, and has a shaft [104] perpendicular to the base, and 2 to 24 impellers [105] and 2 to 24 guide vanes are assembled on the shaft and the out of the surroundings. Vertical multi-stage centrifugal pump with an outsleeve having an angle of 1 to 10 ° centered on the INLET and OUTLET of the pump in the standing sleeve [107]. The base [110] has fluid INLET and OUTLET on the left and right, respectively, and has a shaft [104] perpendicular to the base, and 2 to 24 impellers [105] and 2 to 24 guide vanes are assembled on the shaft and the out of the surroundings. Vertical multistage centrifugal pump having a structure (details A and B in FIG. 2) bent to have elasticity in the separator [FIG. 2 117] and the head cover [FIG. 2 102] in the vertical multistage booster pump with the sleeve [107] upright. The base [110] has fluid INLET and OUTLET on the left and right, respectively, and has a shaft [104] perpendicular to the base, and 2 to 24 impellers [105] and 2 to 24 guide vanes are assembled on the shaft and the out of the surroundings. In the vertical multi-stage booster pump with the sleeve [107] upright, it has a screw in the middle and the end without processing the spline in fixing the impeller [FIG. 2 105] and the shaft [FIG. 2 104]. Vertical multistage centrifugal pump that is secured using a machined sleeve, locking ring [Fig. 119], and locknut 118