CN2791307Y

CN2791307Y - Sugar juice pump

Info

Publication number: CN2791307Y
Application number: CN 200520022414
Authority: CN
Inventors: 张宝华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-26
Filing date: 2005-04-26
Publication date: 2006-06-28
Anticipated expiration: 2015-04-26

Abstract

The utility model relates to a sugar juice pump. The utility model is characterized in that the utility model contains a pump body, a main shaft, a supporting member, a shaft coupling and an impeller composed of a suction impeller and a spitting impeller which are arrayed oppositely, and suction inlets are all symmetrically installed facing a sealed chamber. Since the suction impeller and the spitting impeller are arrayed oppositely, the sugar juice pump of the utility model makes two axial forces generated when the pump is working counteract mutually and has no axial force or leakage. In the meantime, because the impeller faces the mechanical sealed chamber, the input liquid is absorbed by the impeller to make the mechanical sealing not forced by external pressure to obtain the purpose of no leakage. Secondly, an output passage is equipped on the top of the flow passage of the suction section, and the liquid is made to collectively output to reduce flow loss and enhance the efficiency of the pump. The pump has compact structure and convenient disassembling and assembling, and the both ends can be freely dismounted.

Description

A kind of sirup pump

Technical field

The utility model relates to the sirup pump in a kind of sugar mill.

Background technique

The TKG series sirup pump that use in existing sugar refinery is single-stage energy absorbing bracket formula centrifugal pump.Impeller is open, and the gap between impeller and the pump inner cap must be controlled within limits, just can reach the design usability.The axial force of the on-stream generation of water pump is to bear (universal principle of one step single sucking pump) by the dish of two on carriage bearing.The disadvantage of this structure is: if bearing is unable to bear the load of axial force, must cause the heel and toe wear of component, the utilization efficiency and the life-span of having reduced water pump.Under the double action of axial force and pump chamber delivery pressure, mechanical seal is leaked, consequently the loss of the rising of cost of production and output.

Summary of the invention

The purpose of this utility model is the defective that overcomes prior art, and a kind of axial force that do not have is provided, utilization efficiency height, long, leak free novel sirup pump of life-span.

The technical solution of the utility model is: sirup pump comprises the pump housing, main shaft, supporting member (bearing and bearing support and bearing cap), coupling, impeller, it is characterized in that impeller is made of the intake impeller and the impeller that spues, intake impeller is relative with the impeller that spues to be arranged, and suction port is all installed in the face of the symmetric figure of closed chamber.

Sirup pump of the present utility model does not have axial force, do not have to leak, owing to arrange intake impeller is relative with the impeller that spues, two axial forces that produce when making pump working are cancelled out each other, and reach the purpose of no axial force.Meanwhile, all siphoned away, make mechanical seal not be subjected to pressure outside, play lubricated and cooling effect by external cooling water, thereby prolonged the working life of mechanical seal, reach leak free purpose by impeller because impeller face, is imported liquid to the mechanical seal chamber.Secondly, the output road is arranged, make liquid concentrate output, reduce flow loss, improved the efficient of water pump at suction casing runner top.This pump structure compactness, easy accessibility, two ends all can freely be dismantled.

Description of drawings

Fig. 1 is a structure sectional view of the present utility model.

Among the figure: 1-bearing cap first, 2-locking nut, 3-bearing, 4-bearing support, 5-bearing guard cover first, 6-mechanical seal end cap, 7-mechanical seal, 8-stuffing box gland, the 9-suction casing, 10-seal ring first, 11-intake impeller, 12-intermediate clapboard, the 13-diaphragm housing ring, 14-middle cover, the 15-impeller that spues, 16-Spit Section, ] 7-seal ring second, 18-bearing guard cover second, 19-axle, 20-bearing cap second, the 21-coupling, the 22-pump housing, 23-cooling chamber.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further auspicious stating, but be not limited to shown in the accompanying drawing.As shown in Figure 1, the utility model is made up of parts such as the pump housing, main shaft, bearing and bearing support and bearing cap, coupling, impellers, impeller is made up of the intake impeller and the impeller that spues, and intake impeller is relative with the impeller that spues to be arranged, and suction port is all installed in the face of the symmetric figure of closed chamber.The intake impeller 11 and the impeller 15 relative arrangements that spue, suction port are all in the face of closed chamber, and two impellers are isolated by intermediate clapboard and middle cover, and two closed chambers are all adorned a stuffing box gland with the enhanced leaktightness effect.Cooling chamber outside closed chamber and bearing chamber with external water source cool off, lubricating mechanical sealing chamber and bearing chamber, to reduce the heat of syrup temperature transfer.Be provided with output channel in suction casing, enter the impeller that spues through the intermediate clapboard passage, purpose is to concentrate liquid, reduces flow loss.Since there has not been axial force, the water pump operation balance, and safe and reliable, noise is low, vibration is little, even if the empty wagons operation does not have mechanical wear yet.

Claims

1. a sirup pump comprises the pump housing, main shaft, supporting member, coupling, impeller, it is characterized in that impeller is made of the intake impeller and the impeller that spues, and intake impeller is relative with the impeller that spues to be arranged, and suction port is all installed in the face of the symmetric figure of closed chamber.

2. sirup pump according to claim 1 is characterized in that intake impeller and spues being provided with intermediate clapboard and middle cover between the impeller.