CN221120481U

CN221120481U - Centrifugal pump mechanical seal flushing device

Info

Publication number: CN221120481U
Application number: CN202322845289.4U
Authority: CN
Inventors: 王继龙; 贺双香; 李志杰; 樊世贵; 孙玉; 张彦飞
Original assignee: Yinchuan Changsheng Electromechanical Power Engineering Co ltd
Current assignee: Yinchuan Changsheng Electromechanical Power Engineering Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-06-11
Anticipated expiration: 2033-10-24

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses a centrifugal pump mechanical seal flushing device, which comprises a centrifugal pump assembly, wherein the centrifugal pump assembly comprises: the pump body is provided with a connecting component on the outer side; the flushing assembly is arranged at the bottom of the pump body; the pump body bottom is provided with fixed subassembly, and fixed subassembly includes: the support plates are symmetrically arranged at the bottom of the pump body; the transverse plate is arranged between the supporting plates and is positioned below the supporting plates; the fixed cylinder is arranged at the outer side of the supporting plate; the telescopic rod is arranged at the inner side of the fixed cylinder; the L-shaped plate is arranged at the outer side of the telescopic rod; the support block is arranged between the L-shaped plate and the transverse plate; through the fixing component, a setting person draws the telescopic rod inside the fixing cylinder, so that the telescopic rod drives the L-shaped plate to be tightly attached to the outer wall of the flushing component; realizing the adjustment of the pressurization fixed flushing component; through setting up supporting shoe cooperation horizontal pole, realize utilizing self length to support the flushing assembly and make it unable move down when cooperation L shaped plate position changes.

Description

Centrifugal pump mechanical seal flushing device

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a mechanical seal flushing device of a centrifugal pump.

Background

The centrifugal pump is a device for completing fluid conveying by driving the rotation of fluid through centrifugal force generated by an impeller of the rotary pump; the basic structure of the centrifugal pump comprises six parts, namely an impeller, a pump body, a pump shaft, a bearing, a sealing ring and a stuffing box; the impeller is a core part of the centrifugal pump, the rotating speed of the impeller is high, the output force is large, the blades on the impeller play a main role, and the impeller needs to pass a static balance experiment before being assembled. The inner and outer surfaces on the impeller are required to be smooth so as to reduce friction loss of water flow; the mechanical seal is required to be washed by washing liquid after long-term use, so that the influence of impurity blockage on the inner side structure is avoided.

According to the centrifugal pump mechanical seal flushing device disclosed in China patent publication No. CN 216518811U. The centrifugal pump comprises a centrifugal pump, wherein a mechanical seal is arranged in the centrifugal pump, a fixing seat is fixed on the outer wall of the bottom of the centrifugal pump through a bolt, a water tank is clamped in the fixing seat, a filter plate is inserted in the water tank, movable grooves are formed in the outer walls of the two sides of the filter plate, an inserting block is connected in the movable grooves in a sliding mode, a slot is formed in the inner wall of the water tank, the inserting block is inserted in the slot, and a fixing bolt is connected to the outer wall of the filter plate in a threaded mode; keep away from the inserted block through rotating fixing bolt, the inside of slot is kept away from to the inserted block to grafting spring or drive inserted block, can make the inserted block, is convenient for dismantle the clearance with the filter screen from the inside of water tank, can avoid impurity to block up the phenomenon that influences rivers in the inside of mesh to take place, loosens the push pedal, and the elasticity of fixing spring can make slider and fixture block remove, until the inside of fixture block joint at the draw-in groove, is convenient for fix the water tank on the fixing base.

The utility model solves the problem of fixed connection of the cleaning device to a certain extent, but has the defect. The device utilizes screens mechanism cooperation spring fixed connection belt cleaning device and the pump body, and the fixed spring elasticity that relies on does not set up the structure of adjusting the fixed dynamics of pressurization, and fixing device uses inflexibly.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a centrifugal pump mechanical seal flushing device which has the advantage of adjusting the pressurization fixing force and solves the problem that the flushing device is fixed by depending on the elasticity of a spring.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a centrifugal pump mechanical seal flushing device comprising a centrifugal pump assembly, the centrifugal pump assembly comprising:

the pump body is provided with a connecting component on the outer side;

The flushing assembly is arranged at the bottom of the pump body;

The pump body bottom is provided with fixed subassembly, fixed subassembly includes:

the support plates are symmetrically arranged at the bottom of the pump body;

The transverse plate is arranged between the supporting plates and is positioned below the supporting plates;

the fixed cylinder is arranged outside the supporting plate;

The telescopic rod is arranged at the inner side of the fixed cylinder;

the L-shaped plate is arranged outside the telescopic rod;

The screw rods are symmetrically arranged on the outer side of the fixed cylinder and penetrate through the fixed cylinder;

The support block is arranged between the L-shaped plate and the transverse plate.

Preferably, an auxiliary assembly is provided outside the L-shaped plate, and the auxiliary assembly includes:

the springs are arranged on the outer side wall of the L-shaped plate, and the number of the springs is a plurality of.

Preferably, a non-slip mat matched with the L-shaped plate is arranged on the outer side of the spring.

Preferably, an arc-shaped plate matched with the pump body is arranged at the top of the supporting plate.

Preferably, the bottom of the supporting block is provided with a sliding block, and the inner side of the transverse plate is provided with a sliding groove matched with the sliding block of the supporting block.

Preferably, a limiting plate matched with the fixed cylinder is arranged on the outer side of the telescopic rod.

Preferably, clamping plates matched with the flushing assembly are symmetrically arranged on the outer side of the L-shaped plate.

(III) beneficial effects

Compared with the prior art, the utility model provides a centrifugal pump mechanical seal flushing device, which has the following beneficial effects:

1. According to the mechanical seal flushing device for the centrifugal pump, through the fixing assembly, a setting person draws the telescopic rod at the inner side of the fixing barrel, so that the telescopic rod drives the L-shaped plate to be tightly attached to the outer wall of the flushing assembly; realizing the adjustment of the pressurization fixed flushing component; through setting up supporting shoe cooperation horizontal pole, realize utilizing self length to support the flushing assembly and make it unable move down when cooperation L shaped plate position changes.

2. According to the centrifugal pump mechanical seal flushing device, through the auxiliary assembly, the anti-slip pad is arranged, and the outer wall structure of the flushing assembly is matched with the line structure with the friction force increased on the outer side and the plasticity of the anti-slip pad, so that the anti-slip effect is realized; through setting up spring increase pressure, the plasticity of cooperation slipmat realizes utilizing self elasticity, reduces the space between slipmat and the washing subassembly outer wall.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure at A in the present utility model;

FIG. 3 is a schematic top view of the fixing assembly according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a stationary barrel according to the present utility model;

FIG. 5 is a left-hand structural schematic diagram of the present utility model;

In the figure:

1. A centrifugal pump assembly; 11. a connection assembly; 12. a pump body; 13. a flushing assembly;

2. A fixing assembly; 21. an arc-shaped plate; 22. a telescopic rod; 23. a support plate; 24. a fixed cylinder; 25. a screw; 26. an L-shaped plate; 27. a support block; 28. and a transverse plate.

3. An auxiliary component; 31. a spring; 32. an anti-slip mat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, a centrifugal pump mechanical seal flushing device comprising a centrifugal pump assembly 1, said centrifugal pump assembly 1 comprising: a pump body 12, the outer side of which is provided with a connecting assembly 11; the flushing assembly 13 is arranged at the bottom of the pump body 12; the basic construction of the centrifugal pump assembly 1 comprises: the impeller, the pump body 12, the pump shaft, the bearing, the sealing ring and the stuffing box are used for efficiently pumping water; the pump body 12 is a main functional component of the centrifugal pump assembly 1, and the weight of each assembly is borne by the shell; the flushing component 13 is used for flushing impurities of a mechanical seal structure on the inner side of the pump body 12, and is connected with a water outlet on the inner side of the pump body 12, so that water source impurities such as rivers, lakes and the like are more, the impurities are inevitably carried during pumping, the impurities accumulate in the pump body 12, and the pumping efficiency of the pump body 12 is easily influenced; the connecting component 11 is used for connecting a water pipe and is provided with a bolt fixing structure in a matching way.

The pump body 12 bottom is provided with fixed subassembly 2, fixed subassembly 2 includes: the support plates 23 are symmetrically arranged at the bottom of the pump body 12; a cross plate 28 disposed between the support plates 23 and below the support plates 23; a fixed cylinder 24 provided outside the support plate 23; a telescopic rod 22 arranged inside the fixed cylinder 24; an L-shaped plate 26 provided outside the telescopic rod 22; the screw rods 25 are symmetrically arranged outside the fixed cylinder 24, and the screw rods 25 penetrate through the fixed cylinder 24; a support block 27 provided between the L-shaped plate 26 and the cross plate 28; the bottom of the supporting block 27 is provided with a sliding block, and the inner side of the transverse plate 28 is provided with a sliding groove matched with the sliding block of the supporting block 27; the flushing assembly 13 and the pump body 12 are of a separation fixing structure, so that a person can detach the flushing assembly 13 from the pump body 12 when the flushing assembly 13 is damaged conveniently, the fixing assembly 2 is arranged to prevent the flushing assembly 13 from falling off when the flushing assembly 13 is connected with the pump body 12, when the person uses the fixing assembly 2, the telescopic rod 22 is firstly drawn to enable the telescopic rod 22 to slide on the inner side of the fixing barrel 24, the exposed length of the telescopic rod 22 is gradually increased, and the outer L-shaped plate 26 is driven to squeeze the outer wall of the flushing assembly 13; the two ends of the flushing assembly 13 are pressed by the L-shaped plates 26 at the moment and cannot move, a person rotates the screw rod 25 at the outer side of the fixed cylinder 24 to fix the position of the telescopic rod 22 in a pressurizing manner, so that the telescopic rod 22 cannot be continuously drawn, and the fixing is completed; the self weight of the flushing assembly 13 is increased along with the increase of the inner water flow after flushing, the self position is easily deflected downwards under the influence of gravity, the deflection is easily pulled by the fixing barrel 24 to connect the structure fixing plate, and the stability of the connecting structure is weakened; personnel set up supporting shoe 27 in L shaped plate 26 bottom, and supporting shoe 27 can be when L shaped plate 26 is adjusted the position, and through the slider structure slip on diaphragm 28, follow supporting shoe 27 and carry out the position change, and supporting shoe 27 is used for utilizing self length to support the outer wall of flushing assembly 13, makes flushing assembly 13 unable skew downwards, reinforcing L shaped plate 26's fixed effect.

Example two

Referring to fig. 1-5, an auxiliary assembly 3 is disposed outside the L-shaped plate 26, and the auxiliary assembly 3 includes: the springs 31 are arranged on the outer side wall of the L-shaped plate 26, and the number of the springs is a plurality of springs; a non-slip mat 32 matched with the L-shaped plate 26 is arranged on the outer side of the spring 31; in order to further improve the fixing degree of the L-shaped plate 26 and match with the outer wall structure of the flushing assembly 13, an auxiliary assembly 3 is arranged, the outer wall structure of the flushing assembly 13 is smooth, the anti-skid pad 32 is provided with a grain structure for increasing friction force, and the anti-skid pad has plasticity and is matched with the outer wall structure of the flushing assembly 13 to be attached and prevented from falling; the spring 31 is used for increasing the pressure and reducing the gap between the anti-slip pad 32 and the outer wall of the flushing assembly 13 by utilizing the elasticity of the spring and the plasticity of the anti-slip pad 32.

The top of the supporting plate 23 is provided with an arc-shaped plate 21 matched with the pump body 12; the pump body 12 is fixedly connected with the supporting plate 23, so that the disassembly and the assembly of personnel are facilitated; a limiting plate matched with the fixed cylinder 24 is arranged on the outer side of the telescopic rod 22; the movable range of the telescopic rod 22 is fixed, so that the telescopic rod 22 is prevented from being separated from the fixed cylinder 24; clamping plates matched with the flushing assembly 13 are symmetrically arranged on the outer side of the L-shaped plate 26; the position of the flushing assembly 13 is fixed, and the flushing assembly 13 is prevented from falling off from the front side and the rear side.

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

Claims

1. A centrifugal pump mechanical seal flushing device comprising a centrifugal pump assembly (1), the centrifugal pump assembly (1) comprising:

the pump body (12) is provided with a connecting component (11) on the outer side;

The flushing assembly (13) is arranged at the bottom of the pump body (12);

The method is characterized in that: the pump body (12) bottom is provided with fixed subassembly (2), fixed subassembly (2) include:

the support plates (23) are symmetrically arranged at the bottom of the pump body (12);

A cross plate (28) arranged between the support plates (23) and positioned below the support plates (23);

a fixed cylinder (24) provided outside the support plate (23);

A telescopic rod (22) arranged on the inner side of the fixed cylinder (24);

An L-shaped plate (26) arranged outside the telescopic rod (22);

The screw rods (25) are symmetrically arranged on the outer side of the fixed cylinder (24), and the screw rods (25) penetrate through the fixed cylinder (24);

And a support block (27) provided between the L-shaped plate (26) and the cross plate (28).

2. A centrifugal pump mechanical seal flushing device according to claim 1, wherein: an auxiliary assembly (3) is arranged outside the L-shaped plate (26), and the auxiliary assembly (3) comprises:

And a plurality of springs (31) which are arranged on the outer side wall of the L-shaped plate (26).

3. A centrifugal pump mechanical seal flushing device according to claim 2, characterized in that: an anti-slip pad (32) matched with the L-shaped plate (26) is arranged on the outer side of the spring (31).

4. A centrifugal pump mechanical seal flushing device according to claim 1, wherein: an arc-shaped plate (21) matched with the pump body (12) is arranged at the top of the supporting plate (23).

5. The centrifugal pump mechanical seal flushing device of claim 4, wherein: the bottom of the supporting block (27) is provided with a sliding block, and the inner side of the transverse plate (28) is provided with a sliding groove matched with the sliding block of the supporting block (27).

6. The centrifugal pump mechanical seal flushing device of claim 5, wherein: and a limiting plate matched with the fixed cylinder (24) is arranged on the outer side of the telescopic rod (22).

7. The centrifugal pump mechanical seal flushing device of claim 6, wherein: clamping plates matched with the flushing assembly (13) are symmetrically arranged on the outer sides of the L-shaped plates (26).