CN213711348U

CN213711348U - Fluorine-lined magnetic pump capable of being dry-milled

Info

Publication number: CN213711348U
Application number: CN202021785458.XU
Authority: CN
Inventors: 李平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-07-16
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a fluorine-lined magnetic pump capable of being dry-ground, which comprises a motor, wherein a bracket is arranged on the left side of the motor, a magnetic coupling is arranged inside the lower end of the bracket, and the magnetic coupling consists of a rotor assembly and a non-magnetic isolation sleeve assembly; the fluorine-lined magnetic pump capable of being dry-milled uses the non-metal corrosion-resistant high-strength composite material isolation sleeve assembly, so that eddy heating during magnetic transmission is avoided; the working bearing in the pump body is replaced by a common corrosion-resistant sliding bearing into a ceramic rolling bearing, and a rotor cannot move back and forth when the pump operates, so that an impeller cannot move back and forth to be pushed against a pump shell or a bearing body to cause heating, melting and damage of a fluorine lining layer when the pump is subjected to dry grinding; in addition, the ceramic bearing has oil-free self-lubricating property, so that the ceramic bearing can not generate heat during dry grinding operation.

Description

Fluorine-lined magnetic pump capable of being dry-milled

Technical Field

The utility model relates to a magnetic drive pump technical field specifically is a but dry milling line fluorine magnetic drive pump.

Background

The magnetic driving pump (magnetic pump for short) is a new product applying the working principle of permanent magnet coupling to centrifugal pump, and features reasonable design, advanced technology, full sealing, no leakage and corrosion resistance.

The magnetic pump consists of three parts, namely a pump, a magnetic driver and a motor. The key part magnetic driver consists of outer magnetic rotor, inner magnetic rotor and isolating sleeve without magnetic conduction. When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate through the air gap and the nonmagnetic substance to drive the inner magnetic rotor connected with the impeller to synchronously rotate, so that the non-contact transmission of power is realized, and the dynamic seal is converted into the static seal. The pump shaft and the inner magnetic rotor are completely sealed by the pump body and the isolation sleeve, so that the problems of leakage, overflow, dripping and leakage are thoroughly solved, and the potential safety hazard that inflammable, explosive, toxic and harmful media leak through the pump seal in the oil refining chemical industry is eliminated.

The magnetic pump is a branch belonging to the field of water pump, and is a new product applying the working principle of permanent magnet coupling to centrifugal pump. The magnetic pump is mainly applied to the fields of petroleum, chemical industry, pharmacy, environmental protection and the like, the fluorine-lined magnetic pump produced in China at present is characterized in that a conveying medium is used as lubricating liquid, and phenomena of medium gasification, liquid shortage, evacuation and the like frequently occur in the actual use process, so that the dry grinding phenomenon of the pump is caused, and finally, the damage of internal parts of the pump is caused.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a but dry milling line fluorine magnetic drive pump has solved field pump such as petroleum, chemical industry, pharmacy, environmental protection and has often had medium gasification, lack of liquid, phenomenon such as managing to find time to cause the pump dry milling, finally causes the problem of the damage of pump internals.

The utility model provides a following technical scheme: the utility model provides a can dry-grind lining fluorine magnetic drive pump, this lining fluorine magnetic drive pump includes the motor, the left side of motor is provided with the support, and magnetic coupling installs inside the lower extreme of support, magnetic coupling comprises rotor assembly and the spacer sleeve assembly of non-magnetic conductivity, and rotor assembly comprises outer magnetism rotor and interior magnetism rotor, the sealing washer is installed to one side of spacer sleeve assembly, and the pump cover is installed in the left side of sealing washer, and the pump cover passes through the pump cover sealing washer and is connected with the spacer sleeve assembly, and the impeller is still installed to left end one side of this lining fluorine magnetic drive pump, and this impeller mounting is in the left end of rotor assembly, and the impeller is located the inside of casing.

Preferably, the isolation sleeve assembly is made of a non-metal corrosion-resistant high-strength composite material.

Preferably, the working bearing in the pump body is a rolling bearing made of ceramic material.

Preferably, the outer shell of the impeller and the outer shell of the pump adopt a stepped splicing and jacking structure.

Preferably, the bottom end of the dry-grindable fluorine-lined magnetic pump is also provided with a base.

Compared with the prior art, the utility model discloses possess following beneficial effect: the fluorine-lined magnetic pump capable of being dry-milled uses the isolation sleeve assembly made of the non-metal corrosion-resistant high-strength composite material, so that the eddy heating in the working process of the pump body is avoided; the working bearing in the pump body is replaced by a rolling bearing made of ceramic material from a common non-metal sliding bearing, and a rotor cannot move back and forth when the pump operates, so that an impeller cannot move back and forth to be pushed against a pump shell or a bearing body to cause heating, melting and damage of a fluorine lining layer when the pump is in dry grinding; in addition, the ceramic bearing has oil-free self-lubricating property, so that the ceramic bearing can not generate heat during dry grinding operation.

Drawings

FIG. 1 is a schematic structural view of the fluorine-lined magnetic pump which can be dry-milled according to the present invention;

in the figure: 1. a motor; 2. a support; 3. a magnetic coupling; 4. a rotor assembly; 5. an isolation sleeve assembly; 6. a seal ring; 7. a pump cover sealing ring; 8. a pump cover; 9. an impeller; 10. a housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a fluorine-lined magnetic pump capable of dry grinding comprises a motor 1, a support 2 is arranged on the left side of the motor 1, a magnetic coupling 3 is installed inside the lower end of the support 2, the magnetic coupling 3 is composed of a rotor assembly 4 and a non-magnetic separation sleeve assembly 5, the rotor assembly 4 is composed of an outer magnetic rotor and an inner magnetic rotor, a seal ring 6 is installed on one side of the separation sleeve assembly 5, a pump cover 8 is installed on the left side of the seal ring 6, the pump cover 8 is connected with the separation sleeve assembly 5 through a pump cover seal ring 7, an impeller 9 is further installed on one side of the left end of the fluorine-lined magnetic pump, the impeller 9 is installed on the left end of the rotor assembly 4, and the impeller 9 is located inside a shell 10.

The isolation sleeve assembly 5 is made of a non-metal corrosion-resistant high-strength composite material.

The working bearing in the pump body is a ceramic rolling bearing.

The outer shell of the impeller 9 and the outer shell of the pump adopt a stepped splicing and jacking structure.

The bottom end of the fluorine-lined magnetic pump capable of being dry-milled is also provided with a base.

The utility model discloses a theory of operation and use flow: after the magnetic pump capable of dry-grinding fluorine lining is electrified, when the motor 1 drives the rotor assembly 4 to rotate, magnetic lines of force pass through the isolation sleeve assembly 5 under the action of a magnetic field to drive the inner rotor and the impeller 9 to synchronously rotate, and a medium is completely sealed in the static isolation sleeve, so that the aim of pumping the medium without leakage is fulfilled;

the isolation sleeve assembly 5 is made of a non-metal corrosion-resistant high-strength composite material, so that eddy heating during magnetic transmission is avoided;

the working bearing in the pump body is replaced by a rolling bearing made of ceramic material from a common non-metal sliding bearing, and a rotor cannot move back and forth when the pump operates, so that an impeller cannot move back and forth to be pushed against a pump shell or a bearing body to cause heating, melting and damage of a fluorine lining layer when the pump is in dry grinding; in addition, the ceramic bearing has oil-free self-lubricating property, so that the ceramic bearing can not generate heat during dry grinding operation;

a gap and a step structure form are formed between the impeller sealing ring and the pump body sealing ring, and the traditional friction pair structure is not adopted, so that the step structure cannot cause damage to the pump body and the impeller due to friction heat during dry grinding of the pump.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dry-grindable fluorine-lined magnetic pump comprises a motor (1), and is characterized in that: the left side of motor (1) is provided with support (2), and installs inside the lower extreme of support (2) magnetic coupling (3), magnetic coupling (3) comprise rotor assembly (4) and non-magnetic separation sleeve assembly (5), and rotor assembly (4) comprise outer magnetic rotor and interior magnetic rotor, sealing washer (6) are installed to one side of separation sleeve assembly (5), and pump cover (8) are installed in the left side of sealing washer (6), and pump cover (8) are connected with separation sleeve assembly (5) through pump cover sealing washer (7), and impeller (9) are still installed to left end one side of this lining fluorine magnetic drive pump, and this impeller (9) are installed in the left end of rotor assembly (4), and impeller (9) are located the inside of casing (10).

2. The dry-grindable fluorine-lined magnetic pump according to claim 1, characterized in that: the isolation sleeve assembly (5) is made of a non-metal corrosion-resistant high-strength composite material.

3. The dry-grindable fluorine-lined magnetic pump according to claim 1, characterized in that: the working bearing in the pump body is a ceramic rolling bearing.

4. The dry-grindable fluorine-lined magnetic pump according to claim 1, characterized in that: the sealing ring of the impeller (9) and the sealing ring of the pump body adopt a stepped splicing and jacking structure.

5. The dry-grindable fluorine-lined magnetic pump according to claim 1, characterized in that: the bottom end of the dry-grindable fluorine-lined magnetic pump is also provided with a base.