CN214196760U - Fluid rotary conveying device - Google Patents

Abstract

The utility model provides a fluid rotary conveying device, which comprises a shell, an impeller and a drainage tube communicated with the shell, wherein the shell is provided with a discharge port, a plurality of spiral linear chutes leading from the drainage tube to the direction of the discharge port are distributed on the impeller, the drainage tube comprises a conveying inner tube and a pipeline outer sleeve, and the conveying inner tube is fixedly connected with the shell and used for leading fluid into the shell; the pipeline outer sleeve is sleeved on the outer surface of the conveying inner pipe; an annular sealing groove is arranged in the pipeline outer sleeve, and a sealing washer is arranged in the annular sealing groove; the sealing washer is abutted with the outer surface of the conveying inner pipe, and the abutting part of the sealing washer is in sealing connection; pipeline overcoat one end is formed with a swivelling joint portion, and swivelling joint portion is connected with casing detachably, and this application has advantages such as convenient to detach and maintenance, long service life.

Description

Fluid rotary conveying device

Technical Field

The utility model relates to a fluid conveying device especially discloses a rotatory conveyor of fluid.

Background

The existing centrifugal fluid conveying device mainly comprises a shell and an impeller, and kinetic energy generated under the action of centrifugal force when the impeller rotates at a high speed to drive fluid to rotate at a high speed is used as energy for conveying the fluid. However, although the conventional fluid conveying device is subjected to internal corrosion prevention, the conventional fluid conveying device is influenced by the structural design, is inconvenient to clean, has poor anti-scaling performance, is not subjected to external corrosion prevention, can be corroded on the outer surface of a pipeline after being used for a long time, and influences the fluid conveying efficiency once the pipeline is corroded and perforated.

Therefore, it is necessary to provide a fluid rotary conveying device to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the main object of the present invention is to provide a fluid rotary conveying device with easy maintenance and high efficiency, which can quickly solve the above problems in the prior art by detachably connecting a pipeline with an impeller to facilitate the maintenance of the pipeline.

The utility model discloses a solve its technical problem and the technical scheme who adopts does:

a fluid rotary conveying device comprises a shell, an impeller and a drainage tube communicated with the shell, wherein a flow outlet is formed in the shell, a plurality of spiral linear flow grooves leading to the flow outlet from the drainage tube are distributed in the impeller, the drainage tube comprises a conveying inner tube and a pipeline outer sleeve, and the conveying inner tube is fixedly connected with the shell and used for introducing fluid into the shell; the pipeline outer sleeve is sleeved on the outer surface of the conveying inner pipe; an annular sealing groove is formed in the pipeline outer sleeve, and a sealing washer is arranged in the annular sealing groove; the sealing washer is abutted with the outer surface of the conveying inner pipe, and the abutting part of the sealing washer is in sealing connection; one end of the pipeline outer sleeve is provided with a rotary connecting part, and the rotary connecting part is detachably connected with the shell.

Preferably, the annular seal grooves are provided with three groups, and the three groups of annular seal grooves are distributed at equal intervals.

Preferably, an end of the conveying inner pipe, which is far away from the rotary connection, is provided with an opening for fluid to enter.

Preferably, the conveying inner pipe and the pipeline outer sleeve are fixedly connected through bolts in a screwing mode.

Preferably, the rotary connection part is a bearing.

Compared with the prior art, the utility model provides a rotatory conveyor of fluid has following beneficial effect:

1. the drainage tube is connected to the shell in a bearing detachable mode, so that the drainage tube is convenient to detach and clean and maintain, and the performances of corrosion resistance and scaling resistance inside and outside the pipeline are improved.

2. The pipeline jacket is arranged on the outer surface of the conveying inner pipe, and is favorable for preventing the conveying inner pipe from being corroded.

3. The pipeline outer sleeve is internally provided with an annular sealing groove, and the annular sealing groove is internally provided with a sealing washer, so that when the conveying inner pipe is fixedly connected with the shell, fluid can be prevented from leaking to the outside from the position between the pipeline outer sleeve and the conveying inner pipe, and the fluid conveying efficiency is not influenced.

Drawings

Fig. 1 is a schematic cross-sectional view of a drainage channel of a fluid rotary conveying device according to the present invention;

fig. 2 is a schematic cross-sectional view of a fluid rotary conveying apparatus according to the present invention;

fig. 3 is a front schematic view of an impeller of a fluid rotary conveying device according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "fixedly attached" to another element, it can be fixedly attached by welding, bolting, gluing, or the like.

Referring to fig. 1, and with reference to fig. 2 and fig. 3, a fluid rotary conveying device includes a housing 1 and an impeller 4, a spiral linear chute leading from a drainage tube 2 to an outlet is distributed on the impeller 4, the drainage tube 2 includes a conveying inner tube 21 and a pipe outer sleeve 22, the conveying inner tube 21 is fixedly connected with the housing 1 for introducing fluid into the housing 1; the pipeline jacket 22 is sleeved on the outer surface of the conveying inner pipe 21; an annular sealing groove 25 is arranged in the pipeline outer sleeve 22, and a sealing washer is arranged in the annular sealing groove 25; the sealing washer is abutted with the outer surface of the conveying inner pipe 21, and the abutted part is in sealing connection; the pipe housing 22 is formed at one end with a rotary joint 26, and the rotary joint 26 is detachably connected to the housing 1. Preferably, the impeller 4 can be made into a closed type impeller, a semi-open type impeller, an open type impeller and a double-suction type impeller.

Further, annular seal groove 25 is equipped with three groups, and three annular seal grooves 25 of group are equidistance and distribute, and multiple seal improves sealing performance.

Further, the end of the inner conveying pipe 21 remote from the rotary connection is provided with an opening for the fluid to enter.

Further, the conveying inner pipe 21 and the pipeline outer sleeve 22 are fixedly screwed through a bolt 24, so that the drainage stability of the drainage pipe 2 is ensured.

Further, the rotational connection 26 is a bearing.

The working principle of fluid delivery is as follows:

when a motor (not shown in the figure) drives the wheel shaft 6 to drive the whole impeller 4 to rotate in the anticlockwise direction, the side wall of the spiral-shaped chute 5 in the impeller 4 drives the fluid to rotate, and under the action of centrifugal force, particularly strong spiral thrust generated by the side wall of the spiral-shaped chute 5 on the fluid, the fluid in the impeller 4 is strongly pushed to the outlet of the impeller 4 along the chute 5 and is discharged through the outlet 3. Meanwhile, negative pressure is generated at the central inlet of the impeller 4 to suck the fluid in the draft tube 2 into the impeller 4, so that continuous work can be realized.

As can be seen from the above, the impeller 4 is uniformly distributed with Archimedes spiral grooves leading from the draft tube 2 to the outflow port, the number of the spiral grooves is preferably 2-6, as shown in figure 3, 2 spiral grooves are selected for the present embodiment. The structure of other parts, the specification and the size of each part and the installation method thereof can be realized by referring to the existing centrifugal fluid conveying device, and after the impeller 4 is provided with the spiral flow groove, the original working mode mainly based on centrifugal force is changed into the working mode mainly based on spiral thrust. Thus, when delivering fluid at rated power, the pressure to flow ratio can be selected, i.e. the requirement of higher pressure and higher flow is met at the same time.

The utility model discloses a rotatory conveyor of fluid is when rated power carries fluid, and the selective range of pressure and flow ratio is big, can obtain higher pressure and great flow simultaneously, has overcome the little shortcoming of centrifugal blade transport mechanical pressure.

In addition, drainage tube 2 of this application passes through the bearing detachable mode and connects on casing 1, and it is convenient to dismantle, the clean maintenance of being convenient for, and pipeline overcoat 22 sets up at carrying inner tube 21 surface in addition, be favorable to preventing to carry inner tube 21 to corrode, be equipped with annular seal groove 25 in the pipeline overcoat 22, be equipped with seal ring in the annular seal groove 25, when can preventing to carry inner tube 21 and casing 1 rigid coupling, the fluid from pipeline overcoat 22 have and carry the inner tube 21 between the seepage to the external world, influence fluid transport efficiency.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (5)

1. A rotary fluid transfer device, characterized by: the drainage tube comprises a conveying inner tube and a pipeline outer sleeve, wherein the conveying inner tube is fixedly connected with the shell and used for introducing fluid into the shell; the pipeline outer sleeve is sleeved on the outer surface of the conveying inner pipe; an annular sealing groove is formed in the pipeline outer sleeve, and a sealing washer is arranged in the annular sealing groove; the sealing washer is abutted with the outer surface of the conveying inner pipe, and the abutting part of the sealing washer is in sealing connection; one end of the pipeline outer sleeve is provided with a rotary connecting part, and the rotary connecting part is detachably connected with the shell.

2. The rotary fluid transfer device of claim 1, wherein: the annular seal grooves are provided with three groups, and the three groups of annular seal grooves are distributed at equal intervals.

3. The rotary fluid transfer device of claim 1, wherein: and one end of the conveying inner pipe, which is far away from the rotary connection, is provided with an opening for fluid to enter.

4. The rotary fluid transfer device of claim 1, wherein: the conveying inner pipe and the pipeline outer sleeve are fixedly connected through screwing of a bolt.

5. The rotary fluid transfer device of claim 1, wherein: the rotary connecting part is a bearing.

Images