CN211174631U

CN211174631U - Canned motor pump convenient to detect and overhaul

Info

Publication number: CN211174631U
Application number: CN201921926348.8U
Authority: CN
Inventors: 师英东
Original assignee: Ningbo Bohui Chemical Technology Co ltd
Current assignee: Ningbo Bohui Chemical Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-04
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a canned motor pump convenient to detect and overhaul, including pump structure and motor structure, pump export root position is provided with first sealing element subassembly, the root of pump import is provided with the second sealing element subassembly, first sealing element subassembly includes first apron and first sealing element, the second sealing element subassembly includes second apron and second sealing element, the first sealing element is arranged between the first apron and the pump body, the second sealing element is arranged between the second apron and the pump body, the pump export and the pump import side wall on the inner wall all be provided with the recess that can hold the apron, the outer surface of first apron is parallel or indent to the pump export root inner wall, the outer surface of second apron is parallel or indent to the pump import root inner wall, the shielding pump maintenance and detection device has the advantages that the maintenance and detection functions of the shielding pump can be realized without moving the shielding pump and a device pipeline, and the efficiency is greatly improved.

Description

Canned motor pump convenient to detect and overhaul

Technical Field

The utility model belongs to the technical field of the chemical industry and specifically relates to a canned motor pump convenient to detect and overhaul.

Background

Canned motor pumps are one of the commonly used tools in the chemical industry. The canned motor pump comprises a pump structure and a motor structure, wherein the pump structure comprises a pump body, an impeller, a pump inlet and a pump outlet, and the motor structure comprises an output shaft, a motor and a motor shell. When the shielding pump needs to be overhauled or detected, a medium needs to be poured into the pump structure, the pump inlet and the pump outlet are sealed by adopting an external sealing device, and then the shielding pump is detected or overhauled according to related processes.

The prior art has the following disadvantages: for the canned motor pump installed in a use place, device pipelines for connecting the pump inlet and the pump outlet are fixed, a sealing device is not installed at the pump inlet and the pump outlet additionally, the canned motor pump or the device pipelines can only be moved to detect or overhaul the canned motor pump or the device pipelines independently, and the canned motor pump and the device pipelines are difficult to move once being fixed, so that the overhauling or detecting efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that under the limited prerequisite in adjustment space, need not to remove canned motor pump and device pipeline, just can realize overhauing the canned motor pump with detecting, the utility model discloses set up external sealing device into built-in seal assembly, overhaul or examine time measuring, only need open the pump body and load into seal assembly, just can realize canned motor pump's detection.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a canned motor pump convenient to detect and overhaul, includes pump structure and motor structure, the pump structure includes the pump body, impeller, pump inlet and pump outlet, the motor structure includes output shaft, motor housing, a serial communication port pump outlet root position be provided with first sealing member subassembly, the root of pump inlet is provided with second sealing member, first sealing member includes first apron and first sealing member, second sealing member includes second apron and second sealing member, first sealing member sets up between first apron and the pump body, the second sealing member sets up between the second apron and the pump body, all be provided with the recess that can supply to hold the apron on the lateral wall of pump outlet and pump inlet's root, the surface of first apron is parallel or the indent is in the inner wall of pump outlet root, the surface of second apron is parallel or the indent is in the inner wall of pump inlet's root.

The utility model discloses further preferred scheme does: the groove in be provided with at least round seal groove, first sealing member and second sealing member set up respectively in corresponding seal groove, first sealing member and second sealing member be the sealing washer.

The utility model discloses further preferred scheme does: the sealing groove is arranged on the inner wall of the groove.

The utility model discloses further preferred scheme does: the sealing groove is arranged on the upper wall, the lower wall or the left wall and the right wall of the groove.

The utility model discloses further preferred scheme does: the first sealing element and the second sealing element are sealing clamping pieces.

The utility model discloses further preferred scheme does: the surface of the sealing clamping piece is provided with a plurality of sealing convex rings.

The utility model discloses further preferred scheme does: the first cover plate and the second cover plate are provided with fastening holes, the inner wall of each groove is provided with a fastening groove, and the fastening piece penetrates through the fastening holes and is inserted into the fastening grooves.

The utility model discloses further preferred scheme does: and the pump outlet and the pump inlet are provided with fixing holes for connecting pipeline equipment.

The utility model discloses further preferred scheme does: the pump outlet and the pump inlet are respectively provided with a pump body flange at the front part, the pump outlet and the pump inlet are respectively provided with a channel extending into the pump body at the rear part, and the pump outlet and the pump inlet are respectively provided with an inner end of the channel at the root part.

The utility model discloses further preferred scheme does: the pump body flange is connected with the pump body in an integrated arrangement mode.

The utility model discloses further preferred scheme does: and the pump body corresponding to the first sealing component and the second sealing component is provided with a sealing plate which can be opened and closed.

The utility model discloses be revised as traditional external sealing device to seal assembly setting in the pump body. Seal assembly distributes and sets up the root position at pump inlet and pump export, seal assembly includes corresponding sealing member and apron, the apron covers in the sealing member top, and be provided with the recess that is used for holding the apron on the lateral wall of pump inlet and pump export root, simultaneously in order to avoid seal structure to the influence of whole device, the surface of apron is parallel or the indent in the inner wall of pump export and pump import root, thereby realized not influencing under the prerequisite of seal pump function, at the inside evidence seal assembly of the pump body, realized need not to remove the maintenance and the detection function that canned motor pump just can realize canned motor pump with the device pipeline, efficiency is greatly improved.

Drawings

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

FIG. 2 is an enlarged view at A in bitmap 1;

FIG. 3 is an enlarged view at B of FIG. 1;

fig. 4 is a top view of the sealing jaw.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1-3, a canned motor pump convenient to detect and overhaul, includes pump structure 1 and motor structure 2, and motor structure 2 drives pump structure 1 and moves, and pump structure 1 includes the pump body 3, impeller 4, pump inlet 5 and pump export 6, and the medium gets into in the pump body 3 from pump inlet 5 to discharge from pump export 6. Motor structure 2 includes output shaft 7, motor 8, motor housing 9, 6 root positions of pump outlet are provided with first sealing member subassembly 10, the root of pump inlet 5 is provided with second sealing member 11, first sealing member 10 includes first apron 12 and first sealing member 13, second sealing member 11 includes second apron 14 and second sealing member 15, first sealing member 13 sets up between first apron 12 and the pump body 3, second sealing member 15 sets up between second apron 14 and the pump body 3, all be provided with the recess 16 that can supply to hold the apron on the lateral wall of pump outlet 5 and the root of pump inlet 6, the surface of first apron 12 is parallel or the indent is in the inner wall of the root of pump outlet 6, the surface of second apron 13 is parallel or the indent is in the inner wall of the root of pump inlet 5, avoid seal structure to the influence of whole device. When in maintenance or detection, the pump body 3 is only required to be opened, and the first sealing component 10 and the second sealing component 11 are arranged in corresponding positions, so that the situation that the first sealing component and the second sealing component are not required to be moved can be realized

As shown in fig. 1-3, at least one circle of seal groove 17 is disposed in the groove 16, the first seal 13 and the second seal 15 are disposed in the corresponding seal groove 17, and the first seal 13 and the second seal 15 are seal rings. The cooperation of seal groove 17 and seal 15 achieves a sealing effect. A seal groove 17 is provided on the inner wall of the groove 16. The seal groove 17 is arranged on the upper and lower walls or the left and right walls of the groove 16, the upper and lower walls correspond to the pump inlet 5, the left and right walls correspond to the pump outlet 6, and the seal grooves 17 on the two sides of the groove 16 can also achieve a sealing effect. As shown in fig. 4, the first sealing member 13 and the second sealing member 15 are sealing jaws 18. The sealing clip 18 is provided with a plurality of sealing convex rings 19 on the surface. Fastening holes 20 are formed in the first cover plate 12 and the second cover plate 14, fastening grooves 21 are formed in the inner walls of the grooves 16, and fastening members 22 are inserted into the fastening grooves 21 through the fastening holes 20, so that the

cover plates

12 and 14 are more stably fixed in the grooves 16, and the sealing effect is enhanced. The pump outlet 6 and the pump inlet 5 are provided with fixing holes 23 for connecting piping equipment. The front portion that pump export 6 and pump inlet 5 were is pump body flange, and the rear portion of pump export 6 and pump inlet 2 is the passageway that extends into the pump body 3, the root of pump export 6 and pump inlet 5 be the inner end of passageway. The pump body corresponding to the first seal assembly 10 and the second seal assembly 11 is provided with a seal plate (not shown in the drawings) which can be opened and closed. The sealing plate is opened, so that the two sealing assemblies can be mounted, and the maintenance or the detection is simpler and more convenient.

The leakage of high-temperature and high-pressure oil products can cause serious safety accidents such as fire disasters, so the application of the canned motor pump is wider, but a pump body part usually adopts a mode of connecting a split type inlet and outlet flange with a device pipeline, the connecting part needs to bear the working condition load of a medium and also needs to bear the stress generated by cold and hot changes of a pipeline and a pump body, the intrinsic reliability of the canned motor pump is reduced, the intrinsic reliability of the structure is particularly critical, and the structure is one of the directions for further development of the intrinsic safety of the canned motor pump.

It is right above the utility model provides a canned motor pump convenient to detect and overhaul has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment is only used for helping to understand the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A canned motor pump convenient for detection and maintenance comprises a pump structure and a motor structure, wherein the pump structure comprises a pump body, an impeller, a pump inlet and a pump outlet, the motor structure comprises an output shaft, a motor and a motor shell, its characterized in that pump export root position be provided with first sealing member subassembly, the root of pump inlet is provided with the second sealing member subassembly, first sealing member includes first apron and first sealing member, the second sealing member includes second apron and second sealing member, first sealing member sets up between the first apron and the pump body, the second sealing member sets up between the second apron and the pump body, all be provided with the recess that can supply to hold the apron on the inner wall of pump outlet and the lateral wall of pump inlet, the surface parallel of first apron or indent are in the inner wall of the root of pump outlet, the surface parallel of second apron or indent are in the inner wall of the root of pump inlet.

2. The canned motor pump convenient for inspection and maintenance according to claim 1, wherein the groove has at least one ring of sealing groove, the first and second sealing elements are disposed in the corresponding sealing grooves, respectively, and the first and second sealing elements are sealing rings.

3. The canned motor pump of claim 2, wherein the seal groove is formed in the inner wall of the groove.

4. The canned motor pump of claim 2, wherein the seal grooves are formed on the upper and lower walls or the left and right walls of the groove.

5. The canned motor pump convenient for inspection and repair according to claim 2, wherein the first and second sealing members are sealing clips, and a plurality of sealing convex rings are arranged on the surface of each sealing clip.

6. The canned motor pump convenient for inspection and repair according to claim 1, wherein the first cover plate and the second cover plate have fastening holes, and the inner wall of the groove has fastening grooves into which fastening members are inserted through the fastening holes.

7. The canned motor pump easy to inspect and repair according to claim 1, wherein the pump outlet and the pump inlet are provided with fixing holes for connecting piping equipment.

8. The canned motor pump convenient to inspect and overhaul of claim 1, wherein the pump outlet and the pump inlet are respectively provided with a pump body flange at the front part, the pump outlet and the pump inlet are respectively provided with a channel extending into the pump body at the rear part, and the root parts of the pump outlet and the pump inlet are respectively provided with an inner end of the channel.

9. The canned motor pump convenient to detect and overhaul of claim 8, wherein the pump body flanges are connected with the pump body in an integrated manner.

10. The canned motor pump convenient for inspection and repair according to claim 1, wherein the first and second seal assemblies have openable and closable seal plates on their respective pump bodies.