CN2283744Y - Glass fibre reinforced plastic anticorrosive pump - Google Patents

Abstract

The utility model relates to an anticorrosive pump made of glass fibre reinforced plastic. The utility model comprises a pump shaft which is assembled in a pump frame, a pump body which is made of glass fibre reinforced plastic, a pump cover and an impeller, wherein, a sealed chamber for packaging the pump shaft is arranged in the inner cavity of the pump cover, a liquid dispersing ring made of glass fibre reinforced plastic is arranged in the sealed chamber, and the cavity of the liquid dispersing ring is communicated with the suction inlet of the pump body through a closed anticorrosive liquid conducting tube. The utility model can effectively prevent overflow and liquid leakage. The utility model has the advantages of compact structure, small size, low manufacture cost, convenient maintenance, long service life, etc.

Description

The glass fibre reinforced plastics corrosion protection pump

The utility model relates to a kind of corrosion protection pump, especially for the glass fibre reinforced plastics corrosion protection pump of industries such as oil, chemical industry, metallurgy, medicine, food.

At present, used corrosion protection pump in industries such as oil, chemical industry, metallurgy, starch, medicine, food, kind is a lot, and constantly improves according to different needs.The shortcoming that the design person once existed at the existing pump housing and blade wheel structure, the pump housing and the impeller made as ironcasting, not only heavy, volume is big, and the flow passage site surface is coarse, directly influence usabilities such as pump efficiency, flow, lift, cause serious leakage because of poor sealing simultaneously, the corrosion component, increase amount of maintenance, influence operating efficiency; Though the and for example pump housing made of stainless steel, the shortcoming that impeller can overcome ironcasting, the cost height, or the like the problems referred to above designed and do not leaked corrosion protection pump, but can't fundamentally address the leakage concern.

The purpose of this utility model provides a kind of improved glass fibre reinforced plastics corrosion protection pump, and it can prevent effectively that flow liquid from leaking, and has that compact structure, volume are little, advantages such as low cost of manufacture, easy to maintenance, long service life.

The purpose of this utility model is achieved in that this device comprises pump shaft that is assembled in the pump bracket and the pump housing, pump cover, the impeller of being made by glass fibre reinforced plastics, wherein in the closed chamber of pump cover inner chamber encapsulation pump shaft glass fibre reinforced plastics lyophoby ring is set, the cavity of lyophoby ring communicates with pump housing suction port by the catheter of anticorrosion sealing.

Because parts such as the pump housing of the present utility model, pump cover, impeller all adopt glass fibre reinforced plastics to make, its compact structure, volume are little, in light weight, and not only cost is low, and corrosion resistance and good, and is easy to maintenance, long service life.Be arranged on the glass fibre reinforced plastics lyophoby ring in the closed chamber, by the siphonage of the preserving and sealing catheter that communicates with pump housing inner chamber, leakage liquid can be sucked by pump housing suction port again, effectively stop liquid to external leaks, play seal action, replaced mechanical seal fully.Can also flinger ring be set at the closed chamber front end, can block the corrosive liquids that causes excesssive gap to spray to release owing to the wearing and tearing of the filler in the closed chamber and not contact, prolong the working life of bearing with bearing.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a kind of concrete structure schematic representation of the utility model.

Fig. 2 is a kind of structural representation of impeller.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the right elevation of four positive blades of leaf of Fig. 2.

Fig. 5 is the right elevation of six positive blades of leaf of Fig. 2.

Describe concrete structure of the present utility model and operational circumstances in detail according to Fig. 1-5.This device comprises parts such as the pump housing 1 that fits together, impeller 2, bearing 9, pump bracket 8, pump cover 5, bearing 7, coupling 10.Its middle pump body 1, impeller 2, pump cover 5, the gland of bearing 7,9, coupling 10 all adopt glass fibre reinforced plastics to make.Impeller 2 is a narrow slit type vortex and centrifugal composite structure, and it comprises and can suck and the back blades 12 of the positive blade 11 of the liquid that spues, end face centrifugal seal, can carry out the spiral seal 13 of axial seal.The quantity of blade can be made according to actual needs.Fig. 4, Fig. 5 are the positive blade 11 with four leaves or six leaves, and the pump housing 1 has straight channel type vortex delivery chamber.Be provided with stuffing box packing and glass fibre reinforced plastics lyophoby ring 4 in the closed chamber of pump cover 5 inner chambers encapsulation pump shaft 9, by anticorrosion sealing catheter 3 of polyethylene from high pressure process and the pump housing 1 suction port UNICOM.By lyophoby ring 4 and sealing catheter 3 leakage liquid is sucked by the pump housing 1 suction port again, stop leakage liquid to external leakage.Play seal action, replaced mechanical seal.Be arranged on the flinger ring 6 that is positioned at pump cover 5 sealing gland front ends on the pump shaft 9, can spray the corrosive liquids that releases and block because of the stuffing box packing wearing and tearing cause excesssive gap, protection bearing 7 is not corroded, and has prolonged the working life of bearing 7.In addition for protecting the bearing 7,9 that is assembled on the pump shaft 9 better, at the end of bearing 7,9 difference packaged glass steel gland.

During operation, motor shaft drives pump shaft 9 by coupling 10, and liquid pumps through high-speed rotating impeller 2 from the pump housing 1 suction port.Because the high degree of suction vacu um that straight channel type scroll-type delivery chamber is had in the effect of the centrifugal combined impeller 2 of narrow slit type scroll-type and the pump housing 1 effectively reduces flow liquid and leaks.Utilize lyophoby ring 4 and anticorrosion sealing catheter 3 also can make leakage liquid recirculation return the suction port of the pump housing 1, so fundamentally solved fluid leakage problems.The characteristics that have considerable energy saving, enhance productivity, increase the service life.

Claims (4)

1, a kind of glass fibre reinforced plastics corrosion protection pump, comprise pump shaft that is assembled in the pump bracket and the pump housing, pump cover, the impeller of making by glass fibre reinforced plastics, it is characterized in that in the closed chamber of pump cover inner chamber encapsulation pump shaft glass fibre reinforced plastics lyophoby ring being set, the cavity of lyophoby ring communicates with pump housing suction port by the catheter of anticorrosion sealing.

2, corrosion protection pump according to claim 1 is characterized in that being positioned on the pump shaft pump cover sealing gland front end flinger ring is set.

3, corrosion protection pump according to claim 1, packaged glass steel gland is distinguished in the end that it is characterized in that being assembled in the bearing on the pump shaft.

4, corrosion protection pump according to claim 1 is characterized in that the pump housing has straight channel type vortex delivery chamber.

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