Centrifugal pump with gas-liquid separation function

Abstract

The utility model discloses a centrifugal pump with a gas-liquid separation function, which relates to the technical field of centrifugal pumps and comprises a base, a mounting frame is fixedly mounted on the top surface of the base, a centrifugal pump body is mounted on the top surface of the mounting frame, and the top surface of the centrifugal pump body is fixed and communicated with a separation cylinder through a first connecting flange. When the centrifugal pump is used, the driving motor drives the rotating shaft to rotate, the inclined plate at the bottom end pushes liquid to rotate at a high speed in the conical separation barrel, centrifugal separation is enhanced, the fan blades at the top actively suck gas, the gas is discharged into the liquid storage tank through the communicating pipe, and the centrifugal pump is used for separating the gas. Gas-liquid separation and discharging are actively completed, the efficiency is remarkably improved, the centrifugal pump is not limited by environmental factors, and it is ensured that the centrifugal pump body stably operates under the complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a centrifugal pump with gas-liquid separation function. Background Technology

[0002] A centrifugal pump is a machine that uses the centrifugal force generated by the rotation of an impeller to transport fluids. It mainly consists of components such as an impeller, pump casing, and shaft, and is widely used in chemical, water conservancy, metallurgy, and urban water supply fields. It is a common piece of equipment for industrial and civil fluid transportation.

[0003] In Chinese utility model patents, such as CN218717541U, a gas-liquid separation device for a centrifugal pump is disclosed. This device performs two-stage centrifugal separation of liquid containing a large amount of gas flowing into the centrifugal pump body. By setting up the gas-liquid separation device, this device can achieve two-stage centrifugal separation of liquid containing a large amount of gas flowing into the centrifugal pump body, thereby greatly improving the gas-liquid separation efficiency.

[0004] The above-mentioned technology uses two-stage centrifugal separation: the gas-containing liquid enters the spiral tube and is exhausted stepwise through the first and second vent holes. The gas pressure increases due to the natural accumulation of gas in the separation chamber, which pushes the pressure ball to overcome the spring force and open the exhaust channel. The liquid flows into the centrifugal pump body. This is a passive exhaust method, and its exhaust effect is easily affected by environmental factors and has poor controllability. In view of this, this application proposes a centrifugal pump with gas-liquid separation function. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a centrifugal pump with gas-liquid separation function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A centrifugal pump with gas-liquid separation function includes a base, a mounting bracket fixedly mounted on the top surface of the base, a centrifugal pump body mounted on the top surface of the mounting bracket, a separation cylinder fixedly connected to the top surface of the centrifugal pump body via a first connecting flange, an inlet pipe fixedly connected to the outer side of the separation cylinder, a rotating shaft rotatably connected to the top wall of the centrifugal pump body, a drive motor fixedly mounted on the top surface of the separation cylinder, and the output shaft of the drive motor coaxially connected to the rotating shaft, multiple fan blades mounted on the outer side of the rotating shaft, the multiple fan blades being located at the upper part of the separation cylinder, multiple inclined plates mounted on the outer side of the bottom end of the rotating shaft, the multiple inclined plates being close to the bottom of the separation cylinder, two connecting pipes symmetrically fixedly connected to the top surface of the separation cylinder, two liquid storage tanks symmetrically mounted on the outer side of the separation cylinder, and each connecting pipe being connected to a corresponding liquid storage tank, and an exhaust pipe fixedly connected to the top surface of each liquid storage tank.

[0008] Preferably, the separation cylinder has a conical shape, and the diameter of the separation cylinder gradually decreases from top to bottom. A guide plate is installed on the inner wall of the separation cylinder, and the guide plate is spirally arranged downward along the inner wall of the separation cylinder.

[0009] Preferably, two support rods are symmetrically installed on the top surface of the mounting frame, and a diagonal brace is fixedly installed on the outer side of each support rod. A stabilizing ring is installed on the outer side of both diagonal braces.

[0010] Preferably, each exhaust pipe has a connecting seat fixed at its top end, and each connecting seat has multiple through slots equidistantly spaced on its outer side.

[0011] Preferably, each of the liquid storage tanks is fixed to and connected to a drain pipe at its bottom end, and a sealing plug is installed at the bottom end of each drain pipe.

[0012] Preferably, a second connecting flange is fixedly installed at the other end of the liquid inlet pipe, and multiple mounting holes are symmetrically opened on the top surface of the mounting bracket.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model uses a rotating shaft, fan blades, inclined plate, and separation cylinder to achieve the following: the drive motor drives the rotating shaft to rotate, the bottom inclined plate pushes the liquid to rotate at high speed in the conical separation cylinder, which enhances centrifugal separation, the top fan blades actively draw in gas, discharge it into the storage tank through the connecting pipe, and then discharge it through the exhaust pipe. This achieves active gas-liquid separation and discharge, significantly improving efficiency and being unaffected by environmental factors, ensuring stable operation of the centrifugal pump body under complex working conditions.

[0015] 2. This utility model, through devices such as a connecting pipe, an exhaust pipe, and a liquid storage tank, enables the liquid to enter the liquid storage tank through the connecting pipe when the liquid flow rate in the separation cylinder is large. The liquid and gas are separated by gravity, and the gas is discharged through the exhaust pipe. The liquid is stored in the liquid storage tank, which avoids the liquid from overflowing and being wasted. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a centrifugal pump with gas-liquid separation function proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the support rod and diagonal brace installation structure of a centrifugal pump with gas-liquid separation function proposed in this utility model;

[0018] Figure 3 This is a cross-sectional view of the separation cylinder of a centrifugal pump with gas-liquid separation function proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the sealing plug and connecting seat installation structure of a centrifugal pump with gas-liquid separation function proposed in this utility model.

[0020] In the diagram: 1. Base; 2. Mounting bracket; 3. Mounting hole; 4. Centrifugal pump body; 5. Separating cylinder; 6. Liquid storage tank; 7. Support rod; 8. Diagonal brace; 9. Stabilizing ring; 10. First connecting flange; 11. Inlet pipe; 12. Second connecting flange; 13. Connecting pipe; 14. Drive motor; 15. Rotating shaft; 16. Fan blade; 17. Inclined plate; 18. Guide plate; 19. Drain pipe; 20. Sealing plug; 21. Exhaust pipe; 22. Connecting seat; 23. Through groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] This utility model provides a technical solution: such as Figure 1-4As shown, a centrifugal pump with gas-liquid separation function includes a base 1, a mounting bracket 2 fixedly installed on the top surface of the base 1, a centrifugal pump body 4 installed on the top surface of the mounting bracket 2, a separation cylinder 5 fixed and connected to the top surface of the centrifugal pump body 4 through a first connecting flange 10, an inlet pipe 11 fixed and connected to the outside of the separation cylinder 5, a rotating shaft 15 rotatably connected to the top wall of the centrifugal pump body 4, a drive motor 14 fixedly installed on the top surface of the separation cylinder 5, and the output shaft of the drive motor 14 coaxially connected to the rotating shaft 15, a plurality of fan blades 16 installed on the outside of the rotating shaft 15, and the plurality of fan blades 16 located at the upper part of the separation cylinder 5, a plurality of inclined plates 17 installed on the outside of the bottom end of the rotating shaft 15, and the plurality of inclined plates 17 close to the bottom of the separation cylinder 5, two connecting pipes 13 symmetrically fixed and connected to the top surface of the separation cylinder 5, two liquid storage tanks 6 symmetrically installed on the outside of the separation cylinder 5, and each connecting pipe 13 connected to the corresponding liquid storage tank 6, and an exhaust pipe 21 fixed and connected to the top surface of each liquid storage tank 6.

[0023] The liquid can be rotated by multiple inclined plates 17, which are used for the separation of liquid and gas, and the gas is discharged through multiple fan blades 16 installed at the top.

[0024] When the liquid flow rate in the separator 5 is large, the liquid can enter the storage tank 6 through the connecting pipe 13, and the liquid and gas are separated by gravity. The gas is discharged through the exhaust pipe 21, while the liquid is stored in the storage tank 6.

[0025] Furthermore, the separation cylinder 5 adopts a conical design, and the diameter of the separation cylinder 5 gradually decreases from top to bottom, which can strengthen the centrifugal force field and improve the separation efficiency. The inner wall of the separation cylinder 5 is equipped with a guide plate 18, and the guide plate 18 is spirally arranged downward along the inner wall of the separation cylinder 5. The liquid is guided by the guide plate 18, which can force the gas-liquid mixture entering the separation cylinder 5 to generate a stable rotating flow.

[0026] Furthermore, two support rods 7 are symmetrically installed on the top surface of the mounting frame 2. Each support rod 7 has a diagonal brace 8 fixedly installed on its outer side. The two diagonal braces 8 are jointly installed with a stabilizing ring 9 on their outer sides to facilitate the reinforcement of the stability of the separation cylinder 5. It should be noted that each diagonal brace 8 is detachably connected to the stabilizing ring 9.

[0027] Furthermore, each exhaust pipe 21 has a connecting seat 22 fixed at its top end. Each connecting seat 22 has multiple through slots 23 equidistantly spaced on its outer side. Exhaust is discharged through the through slots 23, and the fact that the through slots 23 are located on the outer side can effectively reduce the risk of blockage by external foreign objects.

[0028] Furthermore, each liquid storage tank 6 has a drain pipe 19 fixed and connected to its bottom end, and each drain pipe 19 has a sealing plug 20 installed at its bottom end. The sealing plug 20 can be installed at the bottom end of the drain pipe 19 by means of a threaded connection.

[0029] Furthermore, a second connecting flange 12 is fixedly installed at the other end of the liquid inlet pipe 11, and multiple mounting holes 3 are symmetrically opened on the top surface of the mounting bracket 2.

[0030] This utility model provides a centrifugal pump with gas-liquid separation function. The specific working principle is as follows: First, the gas-containing liquid enters the separation cylinder 5 through the liquid inlet pipe 11. The drive motor 14 drives the rotating shaft 15 to rotate. The bottom inclined plate 17 pushes the liquid to move spirally downward along the inner wall of the separation cylinder 5. Since the separation cylinder 5 has a conical structure, the liquid rotation radius is reduced and the centrifugal force is significantly increased. The liquid with higher density is thrown towards the cylinder wall and spirals down along the guide plate 18, while the gas with lower density gathers in the central area, completing the initial centrifugal separation.

[0031] The separated gas is drawn in by the top fan blades 16 and enters the storage tank 6 through the connecting pipe 13. It is then discharged through the outer groove 23 of the connecting seat 22 at the top of the exhaust pipe 21. When the liquid flow rate in the separation cylinder 5 is large, some liquid flows into the storage tank 6 through the connecting pipe 13. The residual gas is further separated by gravity. The separated liquid is stored in the tank and can be discharged periodically through the sealing plug 20 of the drain pipe 19 to avoid direct overflow and waste.

[0032] The separated low-gas-content liquid enters the centrifugal pump body 4 from the bottom of the separation cylinder 5, and then is discharged through the outlet of the centrifugal pump body 4.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A centrifugal pump with gas-liquid separation function, comprising a base (1), characterized in that, A mounting bracket (2) is fixedly installed on the top surface of the base (1). A centrifugal pump body (4) is mounted on the top surface of the mounting bracket (2). A separation cylinder (5) is fixed and connected to the top surface of the centrifugal pump body (4) through a first connecting flange (10). An inlet pipe (11) is fixed and connected to the outer side of the separation cylinder (5). A rotating shaft (15) is rotatably connected to the top wall of the centrifugal pump body (4). A drive motor (14) is fixedly installed on the top surface of the separation cylinder (5), and the output shaft of the drive motor (14) is coaxially connected to the rotating shaft (15). Multiple fan blades (16) are installed on the outer side of the separator (5), and the multiple fan blades (16) are located on the upper part of the separator (5). Multiple inclined plates (17) are installed on the outer side of the bottom end of the rotating shaft (15), and the multiple inclined plates (17) are close to the bottom of the separator (5). The top surface of the separator (5) is symmetrically fixed and connected to two connecting pipes (13). Two liquid storage tanks (6) are symmetrically installed on the outer side of the separator (5), and each connecting pipe (13) is connected to the corresponding liquid storage tank (6). The top surface of each liquid storage tank (6) is fixed and connected to an exhaust pipe (21).

2. A centrifugal pump with gas-liquid separation function according to claim 1, characterized in that, The separation cylinder (5) is tapered, and the diameter of the separation cylinder (5) gradually decreases from top to bottom. A guide plate (18) is installed on the inner wall of the separation cylinder (5), and the guide plate (18) is spirally arranged downward along the inner wall of the separation cylinder (5).

3. A centrifugal pump with gas-liquid separation function according to claim 1, characterized in that, The mounting bracket (2) has two support rods (7) symmetrically mounted on its top surface. Each support rod (7) has a diagonal brace (8) fixedly mounted on its outer side. The two diagonal braces (8) have a stabilizing ring (9) mounted on their outer sides together.

4. A centrifugal pump with gas-liquid separation function according to claim 1, characterized in that, Each exhaust pipe (21) has a connecting seat (22) fixed at its top end, and each connecting seat (22) has multiple through slots (23) equidistantly spaced on its outer side.

5. A centrifugal pump with gas-liquid separation function according to claim 1, characterized in that, Each of the liquid storage tanks (6) is fixed to and connected to a drain pipe (19) at its bottom end, and a sealing plug (20) is installed at the bottom end of each drain pipe (19).

6. A centrifugal pump with gas-liquid separation function according to claim 1, characterized in that, The other end of the liquid inlet pipe (11) is fixedly installed with a second connecting flange (12), and the top surface of the mounting bracket (2) is symmetrically provided with multiple mounting holes (3).

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