CN216842345U - Process pump with external mechanical seal - Google Patents

Abstract

The utility model discloses a process pump with an external mechanical seal, which comprises: the pump body, the pump body in be provided with the impeller, the impeller pass through the nut and fix the left end at the pump shaft, the pump shaft on be provided with the axle sleeve, pump body right side be provided with the pump cover, the pump cover right side be provided with the bearing box, the impeller right side be provided with the mechanical seal rotating ring, the mechanical seal rotating ring card establish on the impeller. The utility model has the beneficial effects that: the framework oil seal at the traditional seal box is replaced by the externally-mounted mechanical seal, so that the coolant leakage caused by the long-time abrasion of the traditional framework oil seal is avoided, and meanwhile, the mechanical seal in the pump cavity can be protected by the second set of seal to prevent the leakage after the first set of seal is damaged.

Description

Process pump with external mechanical seal

Technical Field

The utility model relates to a pump, in particular to a process pump with an externally-mounted mechanical seal.

Background

A pump is a machine that delivers or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The seal box department of current process pump adopts the skeleton oil blanket mostly, and the skeleton oil blanket can lead to the coolant liquid to leak water and cause the damage to the pump because of wearing and tearing lead to in long-time the use easily.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention is directed to a process pump with an externally mounted mechanical seal.

In order to realize the technical purpose, the scheme of the utility model is as follows: a process pump with an externally mounted mechanical seal, comprising: the pump comprises a pump body, wherein an impeller is arranged in the pump body, the impeller is fixed at the left end of a pump shaft through a nut, the pump shaft is provided with a shaft sleeve, the right side of the pump body is provided with a pump cover, the right side of the pump cover is provided with a bearing box body, the right side of the impeller is provided with a mechanical seal rotating ring which is clamped on the impeller, the right side of the mechanical seal rotating ring is provided with a mechanical seal static ring, the outer side of the mechanical seal static ring is provided with a static ring seat, the static ring seat is arranged between the pump cover and the mechanical seal static ring, the right side of the mechanical seal static ring is connected with a spring seat, the left end of the spring seat is fixed at the right side of the mechanical seal static ring in an embedded manner, the right side of the spring seat is provided with a spring, the right end of the spring props against a seal box, the seal box is arranged at the right side of the pump cover, the right side of the seal box is provided with a first seal block, the first seal block is arranged between the seal box and the shaft sleeve, the right side of the first sealing block is provided with a second sealing block, the second sealing block is fixed on an external mechanical seal in an embedded manner, and the external mechanical seal is fixed with the pump shaft through a screw.

Preferably, the bearing box body is fixed with the pump body through a bolt, and the pump cover is clamped between the pump body and the bearing box body.

Preferably, the seal box is positioned inside the bearing box body and is in close contact with the static ring seat, the bearing box body and the shaft sleeve.

Preferably, a pair of bearing glands are fixed to the bearing housing on the right side of the externally mounted mechanical seal by bolts, and the inside of the bearing glands is sealed by a skeleton oil seal.

The utility model has the beneficial effects that: the framework oil seal at the traditional seal box is replaced by the externally-mounted mechanical seal, so that the coolant leakage caused by the long-time abrasion of the traditional framework oil seal is avoided, and meanwhile, the mechanical seal in the pump cavity can be protected by the second set of seal to prevent the leakage after the first set of seal is damaged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a specific structure at a in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model is described in further detail below with reference to the figures and specific embodiments.

As shown in the drawings, the embodiment of the present invention is a process pump with an externally mounted mechanical seal, comprising: the pump comprises a pump body 1, wherein an impeller 2 is arranged in the pump body 1, the impeller 2 is fixed at the left end of a pump shaft 15 through a nut, a shaft sleeve is arranged on the pump shaft 15, a pump cover 3 is arranged at the right side of the pump cover 1, a bearing box body 4 is arranged at the right side of the pump cover 3, a mechanical seal rotating ring 7 is arranged at the right side of the impeller 2, the mechanical seal rotating ring 7 is clamped on the impeller 2, a mechanical seal stationary ring 8 is arranged at the right side of the mechanical seal rotating ring 7, a stationary ring seat 9 is arranged at the outer side of the mechanical seal stationary ring 8, the stationary ring seat 9 is arranged between the pump cover 3 and the mechanical seal stationary ring 8, a spring 14 seat 13 is connected at the right side of the mechanical seal stationary ring 8, the left end of the spring 14 seat 13 is fixed at the right side of the mechanical seal stationary ring 8 in an embedded manner, a spring 14 is arranged at the right side of the spring 14 seat 13, the right end of the spring 14 props against a seal box 12, the seal box 12 is arranged at the right side of the pump cover 3, the right side of the seal box 12 is provided with a first seal block 17, the first seal block 17 is arranged between the seal box 12 and the shaft sleeve, the right side of the first seal block 17 is provided with a second seal block 16, the second seal block 16 is fixed on the external mechanical seal 10 in an embedded mode, and the external mechanical seal 10 is fixed with the pump shaft 15 through screws. The bearing box body 4 is fixed with the pump body 1 through bolts, and the pump cover 3 is clamped between the pump body 1 and the bearing box body 4. The seal box 12 is positioned at the inner side of the bearing box body 4 and is tightly attached to the static ring seat 9, the bearing box body 4 and the shaft sleeve. A pair of bearing pressing covers 5 are fixed on the bearing box body 4 on the right side of the externally-mounted mechanical seal 10 through bolts, and the bearing pressing covers 5 are sealed through framework oil seals 6.

The utility model has the beneficial effects that: the framework oil seal of traditional seal box department is changed into outer dress formula mechanical seal, has avoided leading to the coolant liquid to leak because of the long-time wearing and tearing of traditional framework oil seal, also can do the sealed protection of second cover for the mechanical seal of pump chamber simultaneously, prevents the weeping after first set of sealed damage.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the utility model, and any minor modifications, equivalents and improvements made on the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims (4)

1. A process pump with an externally mounted mechanical seal, comprising: the pump body, its characterized in that: the pump body is internally provided with an impeller, the impeller is fixed at the left end of the pump shaft through a nut, the pump shaft is provided with a shaft sleeve, the right side of the pump body is provided with a pump cover, the right side of the pump cover is provided with a bearing box body, the right side of the impeller is provided with a mechanical seal rotating ring which is clamped on the impeller, the right side of the mechanical seal rotating ring is provided with a mechanical seal static ring, the outer side of the mechanical seal static ring is provided with a static ring seat, the static ring seat is arranged between the pump cover and the mechanical seal static ring, the right side of the mechanical seal static ring is connected with a spring seat, the left end of the spring seat is fixed at the right side of the mechanical seal static ring in an embedded manner, the right side of the spring seat is provided with a spring, the right end of the spring props against a seal box, the seal box is arranged at the right side of the pump cover, the right side of the seal box is provided with a first seal block, the first seal block is arranged between the seal box and the shaft sleeve, the right side of the first sealing block is provided with a second sealing block, the second sealing block is fixed on the external mechanical seal in an embedded mode, and the external mechanical seal is fixed with the pump shaft through screws.

2. The process pump with an externally mounted mechanical seal of claim 1, wherein: the bearing box body is fixed with the pump body through bolts, and the pump cover is clamped between the pump body and the bearing box body.

3. A process pump with an externally mounted mechanical seal according to claim 1, wherein: the seal box is positioned at the inner side of the bearing box body and is tightly attached to the static ring seat, the bearing box body and the shaft sleeve.

4. A process pump with an externally mounted mechanical seal according to claim 1, wherein: and a pair of bearing glands is fixed on the bearing box body on the right side of the external mechanical seal through bolts, and the bearing glands are sealed through framework oil seals.

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