Vertical submersible suction salt conveying pump

Abstract

The utility model discloses a vertical submersible-suction salt delivery pump, which relates to the technical field of salt collection and comprises a pump body, the front end of the pump body is connected with a water inlet pipe, the rear end of the pump body is connected with a bearing box, a pump shaft is mounted in the pump body, and three groups of deep groove ball bearings are arranged on the bearing box. The auxiliary impeller and the protective plate are added and combined to form a first-stage sealing mechanism, and the first-stage sealing mechanism ensures that the pump does not leak when the pump runs; the connecting plate and the shaft seal form a second-stage sealing mechanism, the second-stage sealing mechanism ensures that the pump does not leak when the pump stops and effectively prevents lubricating oil from leaking and brine from intruding into the bearing box, the two-stage sealing structure is matched with each other so that the pump does not leak dynamically and statically, and the two-stage sealing structure does not generate friction during operation, so that the pumping efficiency is improved, and the service life of the pump is prolonged. And the salt yield is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of salt collection, in particular to a vertical submersible salt pump. Background Art

[0002] The traditional salt pump uses a chrome-plated sleeve and a rubber ring as a seal. This form has extremely high requirements for the concentricity of the pump. The chrome-plated sleeve and the rubber ring are prone to wear during high-speed operation, resulting in a high failure rate. In addition, friction will consume part of the power and reduce efficiency. The impeller structure of the traditional salt pump is unreasonable, the salt delivery is low, and the salt crystals are easily crushed.

[0003] Therefore, a new type of salt transport pump with no leakage, high efficiency and high stability is urgently needed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a vertical submersible salt pump, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a vertical submersible salt pump, comprising a pump body, the front end of the pump body is connected to a water inlet pipe, the rear end of the pump body is connected to a bearing box, a pump shaft is installed inside the pump body, three groups of deep groove ball bearings are arranged on the bearing box, a group of deep groove ball bearings are installed at the front end of the bearing box, two groups of deep groove ball bearings are installed at the rear end of the bearing box, a main impeller is installed at the front end of the pump shaft through an impeller lock nut, a guard plate is installed inside the pump body and on the right side of the main impeller, a connecting plate is installed at the rear end of the pump body, an auxiliary impeller is installed on the outside of the pump shaft and between the guard plate and the connecting plate through a thread, and the pump shaft passes through the guard plate, the auxiliary impeller, the bearing box and the three groups of deep groove ball bearings and extends to the outside of the bearing box.

[0006] Preferably, a shaft seal is installed between the inner cavity of the connecting plate and the pump shaft, and an O-ring is provided between the outer ring of the connecting plate and the bearing box.

[0007] Preferably, the rear end of the bearing box is fixedly connected to a motor bracket, one side of the motor bracket is fixedly connected to a drive motor, and one end of the drive motor extends to the inner side of the motor bracket, the axial end of the motor bracket is connected to one end of the pump shaft through a coupling, the electrical coupling end of the coupling is connected to the axial end of the motor bracket, and the pump coupling end of the coupling is connected to one end of the pump shaft.

[0008] Preferably, the water inlet pipe and the pump body are connected via a flange, a flange is installed at one end of the water inlet pipe and the pump body, and the two flanges are connected via a plurality of bolts and nuts.

[0009] Preferably, the water inlet pipe is located at the center of the pump body axis.

[0010] Preferably, the main impeller is in the shape of a large-mouth ring with streamlined blades.

[0011] The utility model provides a vertical submersible salt pump, which has the following beneficial effects:

[0012] The vertical submersible salt pump improves the curvature of the main impeller and increases the size of the original mouth ring, and uses a vertical and horizontal dual-purpose motor to directly connect the power to enhance the power, so that the salt crystal integrity is high, the salt loading is increased, the solid-liquid ratio is suitable, the wear resistance and corrosion resistance of the accessories are improved, and the pump is not easy to damage. By adding an auxiliary impeller and a connecting plate to form a primary sealing mechanism and a secondary sealing mechanism, there is no leakage both dynamically and statically, the sealing effect is improved, the leakage of lubricating oil and the intrusion of brine are effectively prevented, the leakage problem is solved, the failure rate is reduced, it is not easy to be damaged, the salt collection amount is increased, and the pumping efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0014] In the figure: 1. water inlet pipe; 2. main impeller; 3. pump body; 4. guard plate; 5. auxiliary impeller; 6. connecting plate; 7. pump shaft; 8. bearing box; 9. deep groove ball bearing; 10. coupling; 11. motor bracket. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] See also Figure 1The utility model provides a technical solution: a vertical submersible salt pump, comprising a pump body 3, a water inlet pipe 1 is connected to the front end of the pump body 3, a bearing box 8 is connected to the rear end of the pump body 3, a pump shaft 7 is installed inside the pump body 3, three groups of deep groove ball bearings 9 are arranged on the bearing box 8, a group of deep groove ball bearings 9 is installed at the front end of the bearing box 8, two groups of deep groove ball bearings 9 are installed at the rear end of the bearing box 8, a main impeller 2 is installed at the front end of the pump shaft 7 through an impeller lock nut, a guard plate 4 is installed inside the pump body 3 and on the right side of the main impeller 2, a connecting plate 6 is installed at the rear end of the pump body 3, an auxiliary impeller 5 is installed on the outside of the pump shaft 7 and between the guard plate 4 and the connecting plate 6 through a thread, the pump shaft 7 passes through the guard plate 4, the auxiliary impeller 5, the bearing box 8 and the three groups of deep groove ball bearings 9 and extends to the outside of the bearing box 8, the guard plate 4 can protect the auxiliary impeller 5 and the connecting plate 6 from the impact and wear of salt particles in the solution, and the auxiliary impeller 5 is installed on the outside of the pump shaft 7. The impeller 5 seals the solution, and applies a reverse centrifugal force to the solution by its own rotation so that the liquid will not leak out of the pump body 3 when the pump is running. This is different from the traditional mechanical seal which is easily worn by particulate matter and thus causes seal failure. The packing seal has the problem of leakage and reduced pump efficiency. The auxiliary impeller 5 is more suitable for conveying solutions with more particulate matter. The auxiliary impeller 5 is used as a seal to ensure the stability, efficiency and leakage of the pump. The bearing box 8 is composed of a box body, bearings, oil seals, a heat sink, etc., and bearings and oil seals are installed inside to protect the bearing part of the pump. The heat sink can ensure that the bearing runs at normal temperature. The deep groove ball bearing 9 can reduce the friction coefficient, ensure the rotation accuracy, and can withstand axial force and radial force at the same time. The main impeller 2 is locked and installed using an impeller lock nut, which effectively prevents the leakage of lubricating oil and the intrusion of brine. Under the condition of good maintenance, the overhaul life is extended and the maintenance cost is reduced.

[0017] A shaft seal is installed between the inner cavity of the connecting plate 6 and the pump shaft 7, and an O-ring is arranged between the outer ring of the connecting plate 6 and the bearing box 8. After the pump stops rotating, the auxiliary impeller 5 has no centrifugal force and no longer has a sealing effect. At this time, the pump relies on the shaft seal to seal the liquid, so that the liquid cannot leak from the gap between the pump shaft 7 and the connecting plate 6. The O-ring seals the liquid and prevents it from leaking from the gap between the connecting plate 6 and the bearing box 8. The rear end of the bearing box 8 is fixedly connected to a motor bracket 11, one side of the motor bracket 11 is fixedly connected to a drive motor, and one end of the drive motor extends to the inner side of the motor bracket 11, and the shaft end of the motor bracket 11 is connected to one end of the pump shaft 7 through a coupling 10, and the electrical coupling end of the coupling 10 is connected to the shaft end of the motor bracket 11, and the pump coupling end of the coupling 10 is connected to the pump shaft 7 One end of the pump body 3 is connected, the water inlet pipe 1 is connected to the pump body 3 through a flange, one end of the water inlet pipe 1 and the pump body 3 are both equipped with flanges, and the two flanges are connected by a number of bolts and nuts. The water inlet pipe 1 is located at the center of the axis of the pump body 3. The main impeller 2 is in the shape of a large-mouth ring with streamlined blades, which directly transmits the mechanical energy of the motor to the liquid to increase the kinetic energy of the liquid and subject the liquid to centrifugal force. The rotation of the main impeller 2 transmits strong power to the water flow, thereby realizing suction and pushing to the water outlet on the pump body 3. The main impeller 2 is exquisitely designed, the shape and angle of the blades are accurately calculated, and the streamlined design allows salt particles to efficiently pass through the flow channel of the main impeller 2 without clogging. It can effectively guide the water flow during rotation, increase the speed and pressure, and reduce the crushing of salt crystal solids.

[0018] In summary, when the vertical submersible salt pump is used, the salt pump is installed on a mobile traction device, and the water inlet pipe 1 is immersed in brine with salt. After the pump is started normally, the motor drives the pump shaft 7 to rotate through the coupling 10, so that the pump shaft 7 drives the main impeller 2 to rotate, thereby driving the main impeller 2 to rotate at high speed to generate centrifugal force. Under the action of centrifugal force, a vacuum is formed at the inlet, and under the action of pressure, the brine carries the salt particles into the pump body 3 from the water inlet pipe 1. After passing through the high-speed rotating impeller in the pump body 3, the solid-liquid mixed liquid generates high-speed centrifugal force, and the brine and salt particles are thrown out of the pump body 3 through the outlet on the pump body 3.

[0019] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical submersible salt pump, characterized in that: The invention comprises a pump body (3), the front end of the pump body (3) is connected to a water inlet pipe (1), the rear end of the pump body (3) is connected to a bearing box (8), a pump shaft (7) is installed inside the pump body (3), three groups of deep groove ball bearings (9) are arranged on the bearing box (8), a group of deep groove ball bearings (9) is installed at the front end of the bearing box (8), two groups of deep groove ball bearings (9) are installed at the rear end of the bearing box (8), and the front end of the pump shaft (7) is locked by an impeller lock nut. A main impeller (2) is installed, a guard plate (4) is installed inside the pump body (3) and on the right side of the main impeller (2), a connecting plate (6) is installed at the rear end inside the pump body (3), an auxiliary impeller (5) is installed on the outside of the pump shaft (7) and between the guard plate (4) and the connecting plate (6) through a thread, and the pump shaft (7) passes through the guard plate (4), the auxiliary impeller (5), a bearing box (8) and three sets of deep groove ball bearings (9) and extends to the outside of the bearing box (8).

2. A vertical submersible salt pump according to claim 1, characterized in that: A shaft seal is installed between the inner cavity of the connecting plate (6) and the pump shaft (7), and an O-ring is provided between the outer ring of the connecting plate (6) and the bearing box (8).

3. A vertical submersible salt pump according to claim 1, characterized in that: The rear end of the bearing box (8) is fixedly connected to a motor bracket (11), one side of the motor bracket (11) is fixedly connected to a drive motor, and one end of the drive motor extends to the inner side of the motor bracket (11), the shaft end of the motor bracket (11) is connected to one end of the pump shaft (7) via a coupling (10), the electrical coupling end of the coupling (10) is connected to the shaft end of the motor bracket (11), and the pump coupling end of the coupling (10) is connected to one end of the pump shaft (7).

4. A vertical submersible salt pump according to claim 1, characterized in that: The water inlet pipe (1) and the pump body (3) are connected via a flange; one end of each of the water inlet pipe (1) and the pump body (3) is provided with a flange, and the two flanges are connected via a plurality of bolts and nuts.

5. A vertical submersible salt pump according to claim 1, characterized in that: The water inlet pipe (1) is located at the center of the axis of the pump body (3).

6. A vertical submersible salt pump according to claim 1, characterized in that: The main impeller (2) is in the shape of a large-mouth ring with streamlined blades.

Images