CN218235593U - Forced circulation pump for crystallization - Google Patents

Abstract

The utility model discloses a forced circulation pump for crystallization, including the pump body, motor, set up the impeller in the pump body and the pump shaft of connecting impeller and motor, the pump body is located pump shaft one side including the outlet pipe of import pipe and connection import pipe and import pipe, it is equipped with the mounting that extends towards the pump shaft in the import pipe, be equipped with the scour protection baffle between the one end of import pipe connection outlet pipe and the pump shaft, the position that the pump shaft corresponds to the import pipe is located to scour protection baffle cover, the scour protection baffle is connected with the mounting and should be formed with between the two and constitute import pipe and outlet pipe both communicating runners. The utility model has the advantages of it is following and effect: the pump shaft can be prevented from being impacted, so that stable operation and long service life of the circulating pump are ensured, the stability is good, the bearing capacity is high, and the operation is reliable.

Description

Forced circulation pump for crystallization

Technical Field

The utility model relates to a pump, in particular to forced circulation pump for crystallization.

Background

The circulating pump is a circulating liquid pump for conveying reaction, absorption, separation and absorption liquid regeneration in the device. Its lift is low, and is used for overcoming pressure drop of circulating system. The principle is that the liquid conveyed by the circulating pump flows along the pump shaft direction by utilizing the thrust of the blades of the rotating impeller instead of the centrifugal force of the impeller on the liquid. When the pump shaft is driven by the motor to rotate, the blades and the axis of the pump shaft have a certain helical angle, so that thrust is generated on liquid, and the liquid is pushed out to be discharged along the discharge pipe. When the liquid is pushed out, a partial vacuum is formed at the original position, and the outside liquid is sucked into the impeller along the inlet pipe under the action of the atmospheric pressure. The liquid can be sucked and discharged continuously by the continuous rotation of the impeller.

Because the design structure of the circulating pump enables the position of the pump shaft to be just corresponding to the inlet pipe, the impact force formed by the fluid medium diving from the inlet pipe and entering the pump body just acts on the pump shaft. When the power of the circulating pump is large, the phenomena of continuous vibration, cavitation, scouring and the like of the pump shaft can be caused by the huge diving force generated by the fluid medium, so that the running stability and the service life of the pump shaft are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a forced circulation pump is used in crystallization, this forced circulation pump is used in crystallization can avoid the pump shaft to receive the impact to this steady operation and the life who guarantees the circulating pump.

The above technical object of the present invention can be achieved by the following technical solutions: the utility model provides a forced circulation pump for crystallization, includes the pump body, motor, sets up the impeller in the pump body and connects the pump shaft of impeller and motor, the pump body is located pump shaft one side including the outlet pipe of import pipe and connection import pipe and import pipe, import intraductal being equipped with towards the mounting that the pump shaft extends, be equipped with the scour protection baffle between the one end of import pipe connection outlet pipe and the pump shaft, the position that the pump shaft corresponds to the import pipe is located to the scour protection baffle cover, the scour protection baffle is connected with the mounting and should be formed with between the two and constitute import pipe and outlet pipe both communicating runners.

Through adopting above-mentioned technical scheme, the fluid medium that the import pipe flowed into and the direct contact of pump shaft are followed in the separation that sets up of scour protection baffle to this fluid impact force that receives on avoiding the pump shaft makes pump shaft can not produce phenomena such as vibration, cavitation and erode in the course of the work, guarantees the steady operation and the life of pump shaft with this.

Further setting as follows: the anti-impact partition plate is arranged on the fixing piece in a sliding mode and moves in a reciprocating mode along the axis of the inlet pipe, a limiting portion located below the anti-impact partition plate is formed on the fixing piece, and a buffer spring is arranged between the anti-impact partition plate and the limiting portion.

By adopting the technical scheme, the limit part is arranged to prevent the anti-impact partition plate from being separated from the fixing piece in the movement process, so that the structural stability is ensured; impact force on the anti-impact partition plate is buffered through sliding fit and the buffer spring, so that the service life of the designed anti-impact partition plate is prolonged, and vibration and noise caused by fluid instantaneous impact force are avoided.

Further setting the following steps: the fixing piece is cylindrical, a butt flange is fixedly arranged at the free end of the inlet pipe, a positioning groove is formed in one end face, back to the inlet pipe, of the butt flange, and the fixing piece extends into the positioning groove.

Through adopting above-mentioned technical scheme, set the shape of mounting to the cylinder, reduce the mounting that exists to the at utmost and to the influence that the inflow of import pipe caused, also can remain the area of contact of scour protection baffle and fluid to the at utmost, play better separation scour protection effect, also can realize better protection to the pump shaft. Constant head tank cooperation mounting for when docking flange lies in that the pipeline docks fixedly, these both can play the centre gripping fixed action to the mounting simultaneously, make the mounting that exists not need the independent design to carry out the structure fixed to it, also can realize the fast-assembling of mounting when the operation is more convenient.

Further setting the following steps: the anti-impact baffle plate protrudes towards the inlet pipe to form a guide force-discharging part.

Through adopting above-mentioned technical scheme, the impact force that receives on reducing the scour protection baffle through the guide power-off part that forms to fluid medium to flowing through plays the water conservancy diversion effect, makes its more smooth and easy flow direction outlet pipe, further avoids vibration and the noise that fluid medium produced at the flow process with this, gives the higher product quality of this circulating pump.

Further setting as follows: the impeller is sleeved on the pump shaft, a combining cap used for fixing the impeller is connected to the pump shaft in a threaded mode, a wheel cover matched with the impeller to form a seal is covered on the combining cap, and a fastening piece is connected between the wheel cover and the impeller.

Through adopting above-mentioned technical scheme, wheel cap cooperation impeller comes separation and cap and pump shaft threaded connection department and fluid medium's contact to this avoids the fluid medium to the corruption that threaded connection department caused, thereby makes things convenient for the dismouting maintenance of later stage impeller to change, makes the operation more convenient, maintains simplyr.

Further setting the following steps: and a sealing seat is arranged at one end of the outlet pipe, which is far away from the impeller, and a flow guide bulge protruding towards the impeller is formed on the sealing seat.

Through adopting above-mentioned technical scheme, the setting of seal receptacle promotes the leakproofness of outlet pipe to guide the fluid medium in the outlet pipe through the water conservancy diversion arch that forms to flow towards the exit end of outlet pipe, promote fluid medium's trafficability characteristic, further promote the work efficiency of circulating pump with this.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses can avoid the pump shaft to receive the impact to this steady operation and the life who guarantees the circulating pump.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a sectional view of the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a sectional view of another perspective of the embodiment;

FIG. 5 is a partial schematic view of the structure;

fig. 6 is a partial exploded view of the embodiment.

In the figure: 1. a motor; 2. an impeller; 3. a pump shaft; 4. an inlet pipe; 5. an outlet pipe; 6. a fixing member; 7. an anti-impact baffle plate; 8. a limiting part; 9. a buffer spring; 10. butting flanges; 11. positioning a groove; 12. a guide force release part; 13. and capping; 14. a wheel cover; 15. a fastener; 16. a sealing seat; 17. a flow guide bulge; 18. a flow channel; 19. a base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 6, a forced circulation pump for crystallization includes a base 19, a pump body, a motor 1 fixedly disposed on the base 19, an impeller 2 disposed in the pump body, and a pump shaft 3 connecting the impeller 2 and the motor 1, wherein the pump shaft 3 is connected to an output shaft of the motor 1 through a coupling. The pump body comprises an inlet pipe 4 and an outlet pipe 5 fixedly connected with the inlet pipe 4, wherein the inlet pipe 4 is positioned on one side of the pump shaft 3, and the outlet pipe 5 is fixedly arranged on a base 19. Be equipped with in the import pipe 4 and extend and be the mounting 6 of cylinder shape towards pump shaft 3, be equipped with scour protection baffle 7 between the one end that import pipe 4 is connected outlet pipe 5 and the pump shaft 3, scour protection baffle 7 cover is located the position that pump shaft 3 corresponds to import pipe 4, scour protection baffle 7 is connected with mounting 6 and should be formed with between the two and constitute import pipe 4 and outlet pipe 5 both communicating runner 18.

Scour protection baffle 7 slides and sets up in mounting 6 and along 4 axis reciprocating motion of import pipe, and the last integrated spacing portion 8 that is located scour protection baffle 7 below that is formed with of mounting 6 is equipped with buffer spring 9 between scour protection baffle 7 and the spacing portion 8, and buffer spring 9 one end and 8 fixed connection in spacing portion, the other end and 7 fixed connection in scour protection baffle 7. A butt flange 10 is fixedly arranged at the free end of the inlet pipe 4, a positioning groove 11 is formed in one end face, back to the inlet pipe 4, of the butt flange 10, and the upper end of the fixing piece 6 is outwards turned over and extends into the positioning groove 11. The baffle 7 projects towards the inlet pipe 4 to form a discharge-guiding portion 12.

The pump shaft 3 is sleeved with the impeller 2, a cap 13 for fixing the impeller 2 is connected to the pump shaft 3 in a threaded manner, a wheel cover 14 matched with the impeller 2 to form a seal is covered on the cap 13, a fastening piece 15 is connected between the wheel cover 14 and the impeller 2, and the fastening piece 15 is a bolt penetrating through the wheel cover 14 and connected with the impeller 2 in a threaded manner. One end of the outlet pipe 5, which is far away from the impeller 2, is fixedly provided with a sealing seat 16, and a flow guide bulge 17 which protrudes towards the impeller 2 is formed on the sealing seat 16. The circulating pump is mainly applied to the field of production and processing of crystallized materials.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a forced circulation pump for crystallization, includes the pump body, motor (1), sets up impeller (2) in the pump body and pump shaft (3) of connecting impeller (2) and motor (1), the pump body is located pump shaft (3) one side including outlet pipe (5) and import pipe (4) of import pipe (4) and connection, its characterized in that: be equipped with in import pipe (4) towards fixed part (6) that pump shaft (3) extended, be equipped with impingement baffle (7) between import pipe (4) connection outlet pipe (5) one end and pump shaft (3), position that pump shaft (3) is corresponding to import pipe (4) is located to impingement baffle (7) cover, impingement baffle (7) are connected with fixed part (6) and should be formed with between the two and constitute import pipe (4) and outlet pipe (5) both communicating runner (18).

2. The forced circulation pump for crystallization according to claim 1, characterized in that: scour protection baffle (7) slide to set up in mounting (6) and along import pipe (4) axis reciprocating motion, be formed with spacing portion (8) that are located scour protection baffle (7) below on mounting (6), be equipped with buffer spring (9) between scour protection baffle (7) and spacing portion (8).

3. The forced circulation pump for crystallization according to claim 1, characterized in that: the fixing piece (6) is cylindrical, a butt flange (10) is fixedly arranged at the free end of the inlet pipe (4), a positioning groove (11) is formed in one end face, back to the inlet pipe (4), of the butt flange (10), and the fixing piece (6) extends into the positioning groove (11).

4. The forced circulation pump for crystallization according to claim 1, characterized in that: the scour prevention baffle plate (7) protrudes towards the inlet pipe (4) to form a guide leakage part (12).

5. The forced circulation pump for crystallization according to claim 1, characterized in that: impeller (2) cover locate pump shaft (3), threaded connection has and is used for fixed impeller (2) and cap (13) on pump shaft (3), and cap (13) upper shield is equipped with cooperation impeller (2) and constitutes sealed wheel cap (14), be connected with fastener (15) between wheel cap (14) and impeller (2).

6. The forced circulation pump for crystallization according to claim 1, wherein: and a sealing seat (16) is arranged at one end of the outlet pipe (5) far away from the impeller (2), and a flow guide bulge (17) protruding towards the impeller (2) is formed on the sealing seat (16).

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