CN214007584U

CN214007584U - Double-layer isolation sleeve

Info

Publication number: CN214007584U
Application number: CN202023288965.5U
Authority: CN
Inventors: 顾秋林; 顾建军
Original assignee: Taicang Shunda Magnetic Pump Technology Co ltd
Current assignee: Taicang Shunda Magnetic Pump Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-20
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a double-deck separation sleeve, including endotheca and overcoat, the endotheca is the cylinder structure, the chamber that holds interior magnetic rotor is established to the lower surface concavity, its lower extreme radially outwards sets up mounting flange, and set up the unthreaded hole that is used for fixing on the mounting flange, the overcoat cover is located outside the endotheca, and with endotheca sealing connection, form airtight cavity between endotheca and the overcoat, the interval sets up two sealed limits on the outer wall of endotheca, divide into cooling chamber and drainage chamber with airtight cavity, the upper end on sealed limit sets up the intercommunication mouth that feeds through cooling chamber and drainage chamber, set up inlet and leakage fluid dram that feeds through with cooling chamber and drainage chamber respectively on the mounting flange lateral wall. The utility model adopts the detachable structure for the inner sleeve and the outer sleeve, and can replace the damaged parts, thereby reducing the later maintenance cost; the sealed cavity is divided into the cooling cavity and the drainage cavity by the two sealing edges, so that the cold and heat exchange of the cooling liquid is promoted, and the cooling effect is ensured.

Description

Double-layer isolation sleeve

Technical Field

The utility model relates to a double-deck separation sleeve.

Background

The magnetic pump is a common fluid conveying machine, and is widely used in chemical process flows of inflammable and explosive industry and the like due to the advantages of no leakage, low noise, stable operation and the like. The isolation sleeve is a key part in the magnetic pump, separates the inner magnetic rotor from the outer magnetic rotor, seals the conveying medium in the pump body, and realizes no leakage completely. In the specific use process, the magnetic pump can convey the magnetic pump containing trace impurities and internally wash the magnetic pump to generate large vortex force, so that the isolation sleeve generates heat, the permanent magnet is easy to demagnetize at high temperature for a long time, and the continuous operation of the magnetic pump is seriously influenced. The existing isolation sleeve structure is difficult to have higher overall efficiency, corrosion resistance, high temperature resistance and high pressure resistance at the same time.

SUMMERY OF THE UTILITY MODEL

Aiming at overcoming the defects of the prior art, the utility model discloses a double-layer isolation sleeve which comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is in a cylindrical structure, a containing cavity for containing an inner magnetic rotor is concavely arranged on the lower surface, the lower end of the inner sleeve is radially outwards provided with a fixing flange, the fixing flange is provided with a unthreaded hole for fixing, the outer sleeve is sleeved outside the inner sleeve, and is hermetically connected with the inner sleeve, a sealed cavity is formed between the inner sleeve and the outer sleeve, two sealing edges are arranged on the outer wall of the inner sleeve at intervals to divide the sealed cavity into a cooling cavity and a drainage cavity, the upper end of the sealing edge is provided with a communicating port communicated with the cooling cavity and the drainage cavity, and the side wall of the fixing flange is provided with a liquid inlet and a liquid outlet which are respectively communicated with the cooling cavity and the drainage cavity.

Further, the sealing edge is fixed on the outer wall of the inner sleeve.

Further, the upper edge of the sealing edge is provided with an adhesive tape.

Further, a first inclined plane is arranged on the lower end face of the inner side of the outer sleeve, and a second inclined plane is arranged at the corresponding position of the inner sleeve.

Further, the inner sleeve and the outer sleeve are fixed in a threaded mode.

Furthermore, the tops of the inner sleeve and the outer sleeve are provided with elliptical seal heads.

The utility model discloses the beneficial effect who gains:

the utility model adopts the detachable structure for the inner sleeve and the outer sleeve, and can replace the damaged parts, thereby reducing the later maintenance cost; the sealed cavity is divided into the cooling cavity and the drainage cavity by the two sealing edges, so that the cold and heat exchange of the cooling liquid is promoted, and the cooling effect is ensured. The outer sleeve and the inner sleeve are in threaded fit, and the sealing performance of the inner sleeve and the outer sleeve is further improved through the fit of the first inclined plane and the second inclined plane.

Drawings

Fig. 1 is a schematic structural view of a double-layer spacer sleeve of the present invention;

FIG. 2 is a cross-sectional view of a double layer spacer sleeve according to the present invention;

FIG. 3 is a schematic structural view of the inner sleeve;

FIG. 4 is a schematic view of the structure of the jacket;

the reference numbers are as follows:

1. the device comprises an inner sleeve, 2, an outer sleeve, 3, a sealing edge, 11, an accommodating cavity, 12, a fixing flange, 13, a light hole, 14, a second inclined plane, 21, a first inclined plane, 41, a cooling cavity, 42, a drainage cavity, 51, a liquid inlet, 52 and a liquid outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

A double-layer isolation sleeve is shown in figures 1-4 and comprises an inner sleeve 1 and an outer sleeve 2, wherein the inner sleeve 1 is of a cylindrical structure, a containing cavity 11 for containing an inner magnetic rotor is concavely arranged on the lower surface of the inner sleeve, a fixing flange 12 is radially outwards arranged at the lower end of the inner sleeve, a light hole 13 for fixing is formed in the fixing flange 12, the outer sleeve 2 is sleeved outside the inner sleeve 1 and is in sealing connection with the inner sleeve 1, a sealed cavity is formed between the inner sleeve 1 and the outer sleeve 2, two sealing edges 3 are arranged on the outer wall of the inner sleeve 1 at intervals and are divided into a cooling cavity 41 and a drainage cavity 42, the upper ends of the sealing edges 3 are provided with communication ports for communicating the cooling cavity 41 with the drainage cavity 42, and the side wall of the fixing flange 12 is provided with a liquid inlet 51 and a liquid outlet 52 which are respectively communicated with the cooling cavity 41 and the drainage cavity 42.

In one embodiment, as shown in fig. 1-4, the sealing edge 3 is secured to the outer wall of the inner sleeve 1. Preferably, the upper edge of the sealing edge is provided with a glue strip.

In one embodiment, as shown in fig. 1 to 4, the lower end surface of the inner side of the outer sleeve 2 is provided with a first inclined surface 21, and the corresponding position of the inner sleeve 1 is provided with a second inclined surface 14. The first inclined surface 21 and the second inclined surface 14 cooperate with each other to further seal the inner sleeve 1 and the outer sleeve 2.

In one embodiment, as shown in fig. 1-4, the inner sleeve 1 and the outer sleeve 2 are threadably secured. The inner sleeve 1 and the outer sleeve 2 are of detachable structures, so that damaged parts can be replaced conveniently, and the utilization rate of parts is improved. And simultaneously, the first inclined surface 21 and the second inclined surface 14 are matched to ensure the sealing connection of the two sides.

In one embodiment, as shown in fig. 1-4, the top of the inner sleeve 1 and the outer sleeve 2 are provided with oval heads. The pressure resistance value of the isolation sleeve can be improved to 1.6 MPa.

The utility model discloses when using, as shown in fig. 1-4, set up overcoat 2 outside endotheca 1 to rotatory overcoat 2, connect endotheca 1 and overcoat 2, the coolant liquid is connected to inlet 51, and the recoverer is connected to leakage fluid dram 52, and the coolant liquid gets into cooling chamber 41 from inlet 51, rises gradually to the intercommunication mouth, and will overflow the coolant liquid from the intercommunication mouth and discharge from the leakage fluid dram 52 in the drainage chamber 42 and go out. The cooling water in the isolating sleeve is continuously circulated, so that the cooling effect of the isolating sleeve can be well ensured.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. The utility model provides a double-deck separation sleeve, its characterized in that, includes endotheca and overcoat, the endotheca is the cylinder structure, and the concave chamber that holds interior magnetic rotor that establishes of lower surface, its lower extreme radially outwards sets up fixed flange, and set up the unthreaded hole that is used for fixing on the fixed flange, the overcoat cover is located outside the endotheca, and with endotheca sealing connection, the endotheca with form airtight cavity between the overcoat, the interval sets up two sealed limits on the outer wall of endotheca, will airtight cavity divide into cooling chamber and drainage chamber, the upper end on sealed limit sets up the intercommunication the cooling chamber with the intercommunication mouth in drainage chamber, set up on the fixed flange lateral wall respectively with the cooling chamber with inlet and the leakage fluid dram of drainage chamber intercommunication.

2. The double-layered insulating sleeve as claimed in claim 1, wherein said sealing edge is fixed to an outer wall of said inner sleeve.

3. The double-layer insulating sleeve as claimed in claim 2, wherein the upper edge of the sealing edge is provided with a rubber strip.

4. The double-layered insulating sleeve as claimed in claim 1, wherein a first inclined surface is provided on a lower end surface of an inner side of the outer sleeve, and a second inclined surface is provided at a corresponding position of the inner sleeve.

5. The double-layered insulating sleeve as claimed in claim 1, wherein said inner sleeve and said outer sleeve are screw-fastened.

6. The double-layered isolation sleeve as claimed in claim 1, wherein elliptical heads are disposed on the top of the inner sleeve and the outer sleeve.