阅读说明：本技术 一种稳定性高的离心泵外壳 (Centrifugal pump shell with high stability ) 是由 洪忠保 梅益涛 程志强 王维龙 凤琦 于 2019-08-27 设计创作，主要内容包括：本发明公开了一种稳定性高的离心泵外壳,包括外壳体,外壳体上设有物料进口和物料出口,外壳体包括前壳体与后壳体,且前壳体、后壳体前后相接；前壳体具有泵壳金属骨架与非金属内衬,泵壳金属骨架呈圆形状,其内设置加强筋条,且其中部设置有圆形通孔；所述非金属内衬呈与泵壳金属骨架配合的形状,其包覆固定于泵壳金属骨架的内侧且与加强筋条接触；后壳体具有内层壳体与外层壳体,内层壳体与外层壳体之间形成一缓冲腔,且缓冲腔内设置缓冲垫片,缓冲垫片呈梯形状且连接于内层壳体与外层壳体之间；内层壳体靠近外层壳体的外侧壁上设置有隔音层与加强层。本发明结构简单,可以防止装置在工作过程中,内衬与壳体之间分离。(The invention discloses a high-stability centrifugal pump shell which comprises a shell body, wherein a material inlet and a material outlet are formed in the shell body, the shell body comprises a front shell and a rear shell, and the front shell and the rear shell are connected in a front-back mode; the front shell is provided with a pump shell metal framework and a non-metal lining, the pump shell metal framework is in a round shape, a reinforcing rib is arranged in the pump shell metal framework, and a round through hole is formed in the middle of the pump shell metal framework; the non-metal lining is in a shape matched with the metal framework of the pump shell, is coated and fixed on the inner side of the metal framework of the pump shell and is in contact with the reinforcing ribs; the rear shell is provided with an inner shell and an outer shell, a buffer cavity is formed between the inner shell and the outer shell, and a buffer gasket is arranged in the buffer cavity, is in a trapezoidal shape and is connected between the inner shell and the outer shell; the outer side wall of the inner shell close to the outer shell is provided with a sound insulation layer and a reinforcing layer. The invention has simple structure and can prevent the lining from being separated from the shell in the working process of the device.)

1. A centrifugal pump shell with high stability is characterized by comprising a shell body (1), wherein a material inlet (2) and a material outlet (3) are formed in the shell body (1), the shell body comprises a front shell (4) and a rear shell (5), and the front shell (4) and the rear shell (5) are connected in a front-back mode; the front shell (4) is provided with a pump shell metal framework (41) and a non-metal lining (42), the pump shell metal framework (41) is in a circular shape, a reinforcing rib (6) is arranged in the pump shell metal framework, and a circular through hole (411) is arranged in the middle of the pump shell metal framework; the non-metal liner (42) is in a shape matched with the pump shell metal framework (41), is coated and fixed on the inner side of the pump shell metal framework (41) and is in contact with the reinforcing ribs (6); the rear shell (5) is provided with an inner shell (51) and an outer shell (52), a buffer cavity is formed between the inner shell (51) and the outer shell (52), a buffer gasket (7) is arranged in the buffer cavity, and the buffer gasket (7) is in a trapezoidal shape and is connected between the inner shell (51) and the outer shell (52); the outer side wall of the inner shell (51) close to the outer shell (52) is provided with a sound insulation layer (8) and a reinforcing layer (9), and the sound insulation layer (8) is connected with the reinforcing layer (9) in a front-back mode.

2. A high stability centrifugal pump casing according to claim 1, wherein: the sound insulation layer (8) is a foamed plastic layer, and the reinforcing layer (9) is a glass fiber plate.

3. A high stability centrifugal pump casing according to claim 1, wherein: the outer side wall of the outer shell (51) is provided with a buffer rubber layer (10), and the buffer rubber layer (10) is far away from the buffer gasket (7).

4. A high stability centrifugal pump casing according to claim 1, wherein: the reinforcing ribs (6) are welded on the inner wall of the metal framework (41) of the pump shell, and the reinforcing ribs (6) are rectangular and comprise a plurality of crossed reinforcing iron wires.

5. A high stability centrifugal pump casing according to claim 1, wherein: the reinforcing rib strips (6) are circular and comprise a plurality of crossed reinforcing iron wires, and reinforcing holes corresponding to the circular through holes (411) are formed in the middle of the reinforcing rib strips (6).

Technical Field

The invention relates to the technical field of centrifugal pumps, in particular to a centrifugal pump shell with high stability.

Background

The centrifugal pump is a product widely applied to general machinery and is applied to industries such as urban sewage treatment, irrigation and water conservancy construction, petrifaction, electric power, ships and the like. With the rapid development of the industries such as aerospace, petrochemical engineering and the like, centrifugal pumps are gradually developed to high speed, high pressure and high efficiency, and with the continuous expansion of the industries for conveying media, particularly for conveying easily vaporized media, low-temperature liquefied gas and the like, the application of the centrifugal pumps is more extensive.

The pump casing of the centrifugal pump plays a role in protecting the centrifugal pump and sealing the impeller in a certain space so as to suck and extrude liquid under the action of the impeller, the existing pump casing of the centrifugal pump generally does not have the functions of shock absorption and noise reduction, the vibration generated inside cannot be reduced, and meanwhile, the non-metal lining on the pump casing is easily separated from the pump casing in the working process of the pump.

Disclosure of Invention

The invention aims to provide a centrifugal pump shell with high stability so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a centrifugal pump shell with high stability comprises an outer shell, wherein a material inlet and a material outlet are formed in the outer shell, the outer shell comprises a front shell and a rear shell, and the front shell and the rear shell are connected in a front-back mode; the front shell is provided with a pump shell metal framework and a non-metal lining, the pump shell metal framework is in a circular shape, a reinforcing rib is arranged in the pump shell metal framework, and a circular through hole is formed in the middle of the pump shell metal framework; the non-metal lining is in a shape matched with the metal framework of the pump shell, is coated and fixed on the inner side of the metal framework of the pump shell and is in contact with the reinforcing ribs; the rear shell is provided with an inner shell and an outer shell, a buffer cavity is formed between the inner shell and the outer shell, and a buffer gasket is arranged in the buffer cavity, is in a trapezoidal shape and is connected between the inner shell and the outer shell; the outer wall of the inner shell, which is close to the outer shell, is provided with a sound insulation layer and a reinforcing layer, and the sound insulation layer is connected with the reinforcing layer in front and back.

Preferably, the puigging is the foaming plastic layer, and the enhancement layer is the glass fiber board, and the foaming plastic layer can the noise reduction on the one hand produce, and on the other hand it can play the effect that intensity and rigidity are strengthened with the cooperation of glass fiber board.

Preferably, the outer side wall of the outer layer shell is provided with a buffer rubber layer, and the buffer rubber layer is far away from the buffer gasket.

Preferably, the reinforcing ribs are welded in the metal framework of the pump shell, are rectangular and comprise a plurality of crossed reinforcing iron wires.

Preferably, the reinforcing ribs are circular and comprise a plurality of crossed reinforcing iron wires, and reinforcing holes corresponding to the circular through holes are formed in the middle of the reinforcing ribs.

Compared with the prior art, the invention has the beneficial effects that:

the reinforcing ribs arranged in the invention can increase the contact area between the metal framework and the non-metal lining, increase the friction force between the metal framework and the non-metal lining, and prevent the lining from being separated from the shell in the working process of the pump; the buffer gasket, the sound insulation layer, the reinforcing layer and the buffer rubber layer are arranged, so that the shock absorption and sound insulation effect is good, the vibration and noise pollution generated by the working of the device are reduced, the sound insulation layer is the foamed plastic layer, the reinforcing layer is the glass fiber plate, on one hand, the noise can be reduced by the foamed plastic layer, on the other hand, the strength and rigidity reinforcing effect can be achieved by the cooperation of the foamed plastic layer and the glass fiber plate, meanwhile, the strength requirement of the pump on realizing large-flow output can be met, and the safety performance and the efficiency of the device are greatly improved.

Drawings

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

FIG. 2 is a schematic structural view of the pump casing metal skeleton of the present invention;

FIG. 3 is a drawing showing embodiment 1 of the present invention;

fig. 4 is a drawing of embodiment 2 of the present invention.

In the figure: 1. an outer housing; 2. a material inlet; 3. a material outlet; 4. a front housing; 41. a pump casing metal skeleton; 42. a non-metallic inner liner; 5. a rear housing; 51. an inner shell; 52. an outer shell; 6. reinforcing ribs; 7. a cushion pad; 8. a sound insulating layer; 9. a reinforcing layer; 10. a cushion rubber layer.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

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 by those skilled in the art according to specific situations.