Magnetically-driven double-screw pump

Abstract

The utility model belongs to the technical field of double-screw pumps, and discloses a magnetic drive double-screw pump which comprises a pump body, a shell is installed outside the pump body, a screw assembly is arranged in the pump body, a feeding pipeline and a discharging pipeline are connected to the pump body, an infusion pump is installed outside the shell, and the screw assembly is connected to the pump body. The liquid outlet end of the liquid pump is connected with a first liquid guide pipeline, the liquid inlet end of the liquid pump is connected with a liquid inlet pipeline, the first liquid guide pipeline extends into the feeding pipeline, the liquid outlet end of the first liquid guide pipeline is connected with a second liquid guide pipeline, the second liquid guide pipeline is communicated with the liquid inlet pipeline, and a fan is installed outside the shell. When the cooling device is used, the infusion pump is started, a coolant enters the first liquid guide pipeline through the liquid inlet pipeline, the first liquid guide pipeline surrounds the inner wall of the discharging pipeline, liquid passing through the discharging pipeline is cooled, and heat generated by mechanical friction of the liquid is neutralized.

Description

Technical Field

[0001] The utility model belongs to the technical field of twin-screw pumps, and in particular relates to a magnetically driven twin-screw pump. Background Art

[0002] A twin-screw pump is a positive displacement pump that uses two intermeshing screws to rotate in the pump body to achieve liquid transportation. The design of this pump allows it to handle high-viscosity liquids, media containing solid particles, and corrosive chemicals. Twin-screw pumps are widely used in many industrial fields due to their high efficiency, reliability, and strong adaptability.

[0003] When the existing magnetically driven twin-screw pump is in use, the conveyed liquid contacts the internal components of the pump body, and the mechanical friction generates heat. This heat is transferred to the liquid, causing its temperature to rise. After the acidic and alkaline liquids are conducted, the residual acidic and alkaline liquids in the pump body are easy to corrode the inside of the pump body, thereby affecting the service life of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a magnetically driven twin-screw pump to solve the problem proposed in the above background technology that the conveyed liquid contacts the internal components of the pump body, and mechanical friction generates heat, which is transferred to the liquid, causing its temperature to rise, and after the acidic and alkaline liquids are conducted, the residual acidic and alkaline liquids in the pump body are easy to corrode the inside of the pump body, thereby affecting the service life of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetically driven twin-screw pump, comprising: a pump body, a shell is installed outside the pump body, a screw assembly is arranged inside the pump body, a feed pipe and a discharge pipe are connected to the pump body, a liquid pump is installed outside the shell, a liquid outlet end of the liquid pump is connected to a first liquid guide pipe, a liquid inlet end of the liquid pump is connected to a liquid inlet pipe, the first liquid guide pipe extends into the feed pipe, the liquid outlet end of the first liquid guide pipe is connected to a second liquid guide pipe, and the second liquid guide pipe is communicated with the liquid inlet pipe, and a fan is installed outside the shell.

[0006] Preferably, a first liquid storage tank and a second liquid storage tank are installed outside the shell, piston plates are provided in the first liquid storage tank and the second liquid storage tank, electric telescopic rods are installed on the first liquid storage tank and the second liquid storage tank, and the output end of the electric telescopic rod is connected to the piston plate, and the feed ends of the first liquid storage tank and the second liquid storage tank are connected to feeding pipelines.

[0007] Preferably, an acidic pipeline is connected between the first liquid storage tank and the feed pipeline, and an alkaline pipeline is connected between the second liquid storage tank and the feed pipeline, and valves are installed on the acidic pipeline and the alkaline pipeline.

[0008] Preferably, the screw assembly comprises a main screw, a secondary screw and a motor, the main screw and the secondary screw are meshed with each other and installed in the pump body, the motor is installed on the pump body, and the output end of the pump body is connected to the main screw.

[0009] Preferably, a support column is installed on the lower end surface of the pump body, a support plate is installed on the bottom end of the support column, and a rubber pad is installed on the lower end surface of the support plate.

[0010] Preferably, a fixing plate is installed on the side wall of the support column, a vertical thread groove is opened on the fixing plate, a threaded rod is screwed through the thread groove, and a suction cup is installed at the bottom end of the threaded rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model cools the liquid by providing a liquid pump, a liquid inlet pipe and a first liquid guide pipe. When in use, the liquid pump is started, and the coolant enters the first liquid guide pipe through the liquid inlet pipe. The first liquid guide pipe surrounds the inner wall of the discharge pipe to cool the liquid passing through the discharge pipe, thereby neutralizing the heat generated by the mechanical friction of the liquid.

[0013] (2) The utility model facilitates the cleaning of the equipment by providing a first liquid storage tank, a second liquid storage tank, an electric telescopic rod and a piston plate. When in use, the electric telescopic rod drives the piston plate to squeeze the acidic material in the first liquid storage tank and the alkaline material in the second liquid storage tank into the feed pipe, and neutralizes and cleans them in time, thereby eliminating the corrosive effect of the corrosive liquid on the pump body material and extending the service life of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first liquid-conducting pipeline of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the first liquid storage tank of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the support column of the utility model;

[0018] In the figure: 1. pump body; 2. shell; 3. main screw; 4. auxiliary screw; 5. motor; 6. feed pipe; 7. discharge pipe; 8. liquid pump; 9. first liquid guide pipe; 10. liquid inlet pipe; 11. second liquid guide pipe; 12. fan; 13. first liquid storage tank; 14. second liquid storage tank; 15. piston plate; 16. electric telescopic rod; 17. feeding pipe; 18. acid pipe; 19. alkaline pipe; 20. support column; 21. support plate; 22. rubber pad; 23. fixing plate; 24. threaded groove; 25. threaded rod; 26. suction cup. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 2 As shown, the utility model provides the following technical solutions: a magnetically driven twin-screw pump, comprising: a pump body 1, a shell 2 is installed outside the pump body 1, a screw assembly is arranged inside the pump body 1, a feed pipe 6 and a discharge pipe 7 are connected to the pump body 1, a liquid pump 8 is installed outside the shell 2, the liquid outlet end of the liquid pump 8 is connected to a first liquid guide pipe 9, the liquid inlet end of the liquid pump 8 is connected to a liquid inlet pipe 10, the first liquid guide pipe 9 extends into the feed pipe 6, the liquid outlet end of the first liquid guide pipe 9 is connected to a second liquid guide pipe 11, and the second liquid guide pipe 11 is communicated with the liquid inlet pipe 10, and a fan 12 is installed outside the shell 2.

[0021] Furthermore, the screw assembly includes a main screw 3, a secondary screw 4 and a motor 5. The main screw 3 and the secondary screw 4 are meshed with each other and installed in the pump body 1. The motor 5 is installed on the pump body 1, and the output end of the pump body 1 is connected to the main screw 3.

[0022] Through the above technical solution:

[0023] When in use, start the motor 5, the motor 5 drives the main screw 3 to rotate, and the auxiliary screw 4 rotates with the main screw 3. The main screw 3 and the auxiliary screw 4 rotate in the pump body 1 to form a series of sealed chambers. As the screws rotate, the volume of these chambers gradually increases, the feed pipe 6 sucks in the liquid, and then the volume of the chamber decreases, squeezing the liquid and discharging it from the discharge pipe 7 to the outside of the pump body 1. When discharging the liquid, start the liquid pump 8, and the coolant enters the first liquid guide pipe 9 through the liquid inlet pipe 10. The first liquid guide pipe 9 surrounds the inner wall of the discharge pipe 7, cools the liquid passing through the discharge pipe 7, and neutralizes the heat generated by the mechanical friction of the liquid. The second liquid guide pipe 11 guides the coolant from the first liquid guide pipe 9, and finally enters the feed pipe 6 again for recycling. When the coolant passes through the second liquid guide pipe 11, the fan 12 cools the coolant, thereby ensuring the normal operation of the recycled coolant.

[0024] See also Figure 1 and Figure 3 As shown, a first liquid storage tank 13 and a second liquid storage tank 14 are installed outside the shell 2, and a piston plate 15 is provided in the first liquid storage tank 13 and the second liquid storage tank 14. An electric telescopic rod 16 is installed on the first liquid storage tank 13 and the second liquid storage tank 14, and the output end of the electric telescopic rod 16 is connected to the piston plate 15. The feeding ends of the first liquid storage tank 13 and the second liquid storage tank 14 are connected to a feeding pipe 17, which facilitates the timely replenishment of raw materials into the first liquid storage tank 13 and the second liquid storage tank 14.

[0025] Furthermore, an acidic pipeline 18 is connected between the first liquid storage tank 13 and the feed pipeline 6 , and an alkaline pipeline 19 is connected between the second liquid storage tank 14 and the feed pipeline 6 . Valves are installed on the acidic pipeline 18 and the alkaline pipeline 19 .

[0026] Through the above technical solution:

[0027] During use, the cleaning agent is introduced into the feed pipe 6. When the pump body 1 has finished guiding the alkaline liquid, the electric telescopic rod 16 is started. The electric telescopic rod 16 drives the piston plate 15 to squeeze the acidic material in the first liquid storage tank 13 from the acidic pipe 18 into the feed pipe 6, thereby facilitating the neutralization of the alkaline liquid remaining in the pump body 1. When the pump body 1 has finished guiding the acidic liquid, the electric telescopic rod 16 is started. The electric telescopic rod 16 drives the piston plate 15 to squeeze the alkaline material in the second liquid storage tank 14 from the alkaline pipe 19 into the feed pipe 6, thereby facilitating the neutralization of the acidic liquid remaining in the pump body 1. Timely neutralization and cleaning can reduce or eliminate the corrosive effect of the corrosive liquid on the material of the pump body 1 and extend the service life of the pump body 1.

[0028] For further information, see Figure 1 and Figure 4As shown, a support column 20 is installed on the lower end surface of the pump body 1 , a support plate 21 is installed on the bottom end of the support column 20 , and a rubber pad 22 is installed on the lower end surface of the support plate 21 .

[0029] Furthermore, a fixing plate 23 is installed on the side wall of the support column 20 , a vertical thread groove 24 is formed on the fixing plate 23 , a threaded rod 25 is screwed through the thread groove 24 , and a suction cup 26 is installed at the bottom end of the threaded rod 25 .

[0030] Specifically, the support column 20 and the support plate 21 provide additional support points for the pump body 1, increasing the stability of the pump body 1. Then, the threaded rod 25 is screwed, and the suction cup 26 is driven to move through the interaction between the threaded rod 25 and the threaded groove 24 until the suction cup 26 sticks to the ground. The suction cup 26 fixes the pump body 1 in a specific position through its suction force, providing a stable support point to prevent the pump body 1 from displacement or vibration during operation. The rubber pad 22 has good elasticity and damping properties, which can absorb and reduce the vibration and noise generated by the pump body 1 during operation, thereby improving the operation efficiency of the pump body 1 and reducing noise pollution.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetically driven twin-screw pump, characterized in that: include: A pump body (1), a shell (2) is installed outside the pump body (1), a screw assembly is arranged inside the pump body (1), a feed pipe (6) and a discharge pipe (7) are connected to the pump body (1), a liquid pump (8) is installed outside the shell (2), a liquid outlet end of the liquid pump (8) is connected to a first liquid guide pipe (9), a liquid inlet end of the liquid pump (8) is connected to a liquid inlet pipe (10), the first liquid guide pipe (9) extends into the feed pipe (6), the liquid outlet end of the first liquid guide pipe (9) is connected to a second liquid guide pipe (11), and the second liquid guide pipe (11) is in communication with the liquid inlet pipe (10), and a fan (12) is installed outside the shell (2).

2. A magnetically driven twin-screw pump according to claim 1, characterized in that: A first liquid storage tank (13) and a second liquid storage tank (14) are installed outside the shell (2); a piston plate (15) is provided inside the first liquid storage tank (13) and the second liquid storage tank (14); an electric telescopic rod (16) is installed on the first liquid storage tank (13) and the second liquid storage tank (14); and the output end of the electric telescopic rod (16) is connected to the piston plate (15); and the feed ends of the first liquid storage tank (13) and the second liquid storage tank (14) are connected to a feeding pipeline (17).

3. A magnetically driven twin-screw pump according to claim 2, characterized in that: An acidic pipeline (18) is connected between the first liquid storage tank (13) and the feed pipeline (6), and an alkaline pipeline (19) is connected between the second liquid storage tank (14) and the feed pipeline (6), and valves are installed on both the acidic pipeline (18) and the alkaline pipeline (19).

4. A magnetically driven twin-screw pump according to claim 3, characterized in that: The screw assembly comprises a main screw (3), a secondary screw (4) and a motor (5); the main screw (3) and the secondary screw (4) are meshed with each other and installed in a pump body (1); the motor (5) is installed on the pump body (1); and the output end of the pump body (1) is connected to the main screw (3).

5. A magnetically driven twin-screw pump according to claim 4, characterized in that: A support column (20) is installed on the lower end surface of the pump body (1), a support plate (21) is installed on the bottom end of the support column (20), and a rubber pad (22) is installed on the lower end surface of the support plate (21).

6. A magnetically driven twin-screw pump according to claim 5, characterized in that: A fixing plate (23) is installed on the side wall of the support column (20), a vertical thread groove (24) is provided on the fixing plate (23), a threaded rod (25) is screwed through the thread groove (24), and a suction cup (26) is installed at the bottom end of the threaded rod (25).

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