CN211116636U - High-efficiency forced self-sucking pump - Google Patents

Abstract

The utility model discloses a high-efficient forced self priming pump, including motor, pump body and storage barrel, the pump body includes pump shaft, pump cover, spiral case, impeller, mechanical seal, the output shaft of motor passes through the electricity federation and is connected with the pump shaft, the impeller is connected to the pump shaft below, and the pump cover sets up in the pump shaft outside, through mechanical seal connection between pump shaft and the pump cover, the spiral case passes through the pump cover connection, and the impeller is settled in the spiral case, and the spiral case export links to each other with the pump discharge gate, and the spiral case import links to each other with the storage barrel through the pipeline; the material storage cylinder is arranged on one side of the pump body, a feed inlet is arranged on the side surface of the material storage cylinder, the feed inlet is connected with an inlet of the pump body through a circulating pipe, and an opening matched with the material storage cylinder is designed on the circulating pipe in the material storage cylinder to realize gas-liquid mixing external circulation; the utility model discloses an extrinsic cycle design, simple structure, convenient to use has promoted from the height of inhaling in the time, makes the thick liquid be difficult for blockking up in the liquid reserve tank, and the reliability increases, and work efficiency improves.

Description

High-efficiency forced self-sucking pump

Technical Field

The utility model belongs to the technical field of the self priming pump, concretely relates to self priming pump is forced to high efficiency.

Background

Self priming pump is used widely in trades such as electric power, petroleum, chemical industry, chemical fertilizer, water conservancy, mine, environmental protection, pharmacy, papermaking, steel, boats and ships sewage treatment, for carrying the sewage filth that contains the granule to play positive effect, along with scientific and technological development, the requirement to the self priming pump is higher and higher, and current WFB self priming pump has following defect in the use:

1. the working efficiency is low, the matching power of the motor is high, and the energy consumption is high;

2. horizontal pump plus self-priming tank. The slurry has no forced self-suction function, has weak self-suction capability and low suction lift, and is easy to block when the concentration of the slurry is high; the structure is not compact enough, and the installation floor area is large;

3, an inlet electromagnetic valve and an outlet check valve of the WFB self-priming pump are easy to damage, so that the production is influenced;

the WFB self-priming pump adopts auxiliary impeller power seal, so that shaft power is lost on one hand, and medium leakage is easy to occur when the pump is stopped on the other hand;

5. the traditional self-priming pump adopts a closed impeller, and is easy to block when the concentration of overflowing medium is high; meanwhile, the outlet of the closed impeller is narrow, so that Cr30A (equal corrosion-resistant and wear-resistant) is inconvenient to cast, and the use scene is limited.

Disclosure of Invention

In order to solve the problem, the utility model discloses a self priming pump is forced to high efficiency has changed the inner structure and the theory of operation of pump, adopts the extrinsic cycle design, has promoted from the height of inhaling the while, makes the thick liquid be difficult for blockking up in the liquid reserve tank, and the reliability increases, and work efficiency improves.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a high-efficiency forced self-priming pump comprises a motor, a pump body and a storage barrel, wherein the pump body comprises a pump shaft, a pump cover, a volute, an impeller and a mechanical seal; the storage cylinder is arranged on one side of the pump body, a feed inlet is formed in the side face of the storage cylinder, the feed inlet is connected with an inlet of the pump body through a runner pipe, and an opening matched with the storage cylinder is designed on a snake-shaped pipeline in the storage cylinder to realize gas-liquid mixed external circulation.

As a further improvement, the motor is arranged on the motor frame, so that the stability of the structure is improved.

As a further improvement, the pump body is provided with an exhaust valve.

As a further improvement of the utility model, the contact position of the pump shaft and the impeller is provided with two layers of raw rubber belts.

As a further improvement of the utility model, the impeller below is through bolted connection impeller closing cap.

As a further improvement of the utility model, the storage cylinder is higher than the self-suction cylinder.

As a further improvement of the utility model, the flow tube is in a serpentine shape.

As a further improvement of the utility model, a control valve is arranged on the circulating pipe.

The utility model has the advantages that:

1. the working efficiency of the self-priming pump is 20 percent higher than that of a WFB pump, the matched motor is at least one grade higher than that of the traditional self-priming pump, and the energy conservation is obvious;

2. the external circulation realizes the self-suction function, and is more stable and stronger in self-suction capability compared with the traditional liquid storage tank form;

3. the gas-liquid mixing external circulation design is adopted, an outlet check valve and an inlet electromagnetic valve are not provided, and the time and difficulty of later maintenance are greatly reduced;

4. the sealing form is redesigned, so that the shaft power is reduced, and slurry leakage cannot be caused when the pump is stopped;

5. the open impeller design is adopted, so that the passing property of the pump to a high-concentration medium is improved; meanwhile, the selection range of the material of the pump flow-through component is expanded, and the application scene of the pump is greatly expanded.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a diagram of a real object.

List of reference numerals:

1. the device comprises a motor, 2, a volute, 3, a storage barrel, 4, a pump shaft, 5, a pump cover, 6, an impeller, 7, a mechanical seal, 8, an electric coupler, 9, a discharge port, 10, a feed inlet, 11, a circulating pipe, 12, a motor frame, 13, an exhaust valve, 14, a raw rubber belt, 15, an impeller seal cover, 16, a bolt, 17 and an opening.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in the figures, the high-efficiency forced self-priming pump of the utility model comprises a motor 1, a pump body and a storage barrel, wherein the pump body comprises a pump shaft 4, a pump cover 5, a volute 2, an impeller 6 and a mechanical seal 7, an output shaft of the motor 1 is connected with the pump shaft 4 through an electric coupler 8, the impeller 6 is connected below the pump shaft 4, the pump cover 5 is arranged outside the pump shaft 4, the pump shaft 4 is connected with the pump cover 5 through the mechanical seal 7, the volute 2 is connected through the pump cover 5, the impeller 6 is arranged in the volute 2, an outlet of the volute 2 is connected with a pump discharge port 9, and an inlet of the volute 2 is connected with the storage barrel 3 through a pipeline; storage cylinder 3 sets up in pump body one side, 3 sides of storage cylinder are equipped with feed inlet 10, the feed inlet passes through runner pipe 11 with pump body entry and is connected, and the design has opening 17 cooperation storage cylinder in the storage cylinder on 11 siphunculus, realizes the gas-liquid mixture extrinsic cycle.

The utility model discloses changed the inner structure and the theory of operation of pump, adopted the extrinsic cycle design in this pump storage section of thick bamboo 3, not simply inhale the material from a section of thick bamboo, but the snakelike runner pipe 11 that has designed in the storage section of thick bamboo alone has opening 17 in the design of snakelike runner pipe 11, and runner pipe 11 is higher than the pump body height, has promoted from inhaling the height simultaneously, makes the thick liquid be difficult for blockking up in storage section of thick bamboo 3.

Because the pump is provided with a gas-liquid mixing external circulation design, an electromagnetic valve at an inlet and a check valve at an outlet are not needed, and the reliability of the equipment is improved.

Compared with the traditional internal circulation of the self-priming pump, the external circulation design is adopted, the medium cannot directly flow from a high-pressure area to a low-pressure area, no power loss exists, and the efficiency of the pump is improved by 10-15 percentage points. Under the same performance parameters, the motor can be 1-2 grades smaller than the traditional self-priming pump.

The pump body comprises a volute 2, a pump shaft 4, a pump cover 5, an impeller 6 and a mechanical seal 7, an output shaft of the motor is connected with the pump shaft 4 through an electric coupler 8, the impeller 6 is connected below the pump shaft 4, the pump cover 5 is arranged on the outer side of the pump shaft 4, the pump shaft 4 is connected with the pump cover 5 through the mechanical seal 7, the mechanical seal 7 comprises a mechanical seal flange, a mechanical seal fixing ring and a mounting plate, and the pump shaft is sequentially provided with the mechanical seal fixing ring, the mounting plate, the mechanical seal flange, a static ring and a dynamic ring from top to bottom; and a flange sealing ring is arranged between the mechanical seal flange and the pump cover.

The utility model discloses the sealed collection dress formula of improving into by the auxiliary impeller power seal of the pump body is exempted from to wash mechanical seal, has reduced the shaft power to efficiency has been improved.

The pump body of the utility model adopts the open impeller design, which improves the problem of narrower water outlet of the traditional pump impeller, and when the concentration of overflowing slurry is higher in the market, the open impeller design is adopted to enhance the medium passing performance; meanwhile, the casting difficulty is reduced, excellent corrosion-resistant and wear-resistant materials such as Cr30A and the like are applied, and the use scene of the pump is greatly expanded.

The motor sets up on the motor frame, improves the steadiness of structure.

The utility model discloses be equipped with discharge valve on the pump body, discharge inside gas when necessary.

The utility model discloses the contact department of pump shaft 4 and impeller 6 is equipped with two-layer raw sticky tape 14, prevents that liquid from getting into.

Impeller 6 below is passed through bolt 16 and is connected impeller closing cap 15.

The utility model is provided with a control valve on the circulating pipe 11.

A high-efficient forced self priming pump, adopt the extrinsic cycle design, simple structure, convenient to use when having promoted from inhaling the height, makes the thick liquid be difficult for blockking up in the liquid reserve tank, the reliability increases, work efficiency improves.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features.

Claims (8)

1. The utility model provides a self priming pump is forced to high efficiency which characterized in that: the pump body comprises a pump shaft, a pump cover, a volute, an impeller and a mechanical seal, an output shaft of the motor is connected with the pump shaft through an electric coupler, the impeller is connected below the pump shaft, the pump cover is arranged on the outer side of the pump shaft, the pump shaft is connected with the pump cover through the mechanical seal, the volute is connected through the pump cover, the impeller is arranged in the volute, an outlet of the volute is connected with a pump discharge port, and an inlet of the volute is connected with the storage barrel through a pipeline; the storage cylinder is arranged on one side of the pump body, a feed inlet is arranged on the side face of the storage cylinder, the feed inlet is connected with an inlet of the pump body through a runner pipe, and an opening matched with the storage cylinder is arranged on the runner pipe in the storage cylinder, so that gas-liquid mixing external circulation is realized.

2. The high efficiency forced self-primer pump of claim 1 wherein: the motor is arranged on the motor frame.

3. The high efficiency forced self-primer pump of claim 1 wherein: an exhaust valve is arranged on the pump body.

4. The high efficiency forced self-primer pump of claim 1 wherein: two layers of raw rubber belts are arranged at the contact position of the pump shaft and the impeller.

5. The high efficiency forced self-primer pump of claim 1 wherein: and the lower part of the impeller is connected with an impeller sealing cover through a bolt.

6. The high efficiency forced self-primer pump of claim 1 wherein: the height of the circulating pipe is higher than that of the pump body.

7. The high efficiency forced self-primer pump of claim 1 wherein: the flow tube is serpentine in shape.

8. The high efficiency forced self-primer pump of claim 1 wherein: and a control valve is arranged on the circulating pipe.

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