This level reflux flow equalizer

Abstract

The utility model relates to liquid flow equalizer technical field especially relates to this level backflow flow equalizer, including cylinder, the feed inlet who communicates in the upper portion outside the cylinder, the discharge outlet who communicates in the lower portion outside the cylinder, the ball valve who fixes in the outer end of discharge outlet and the backflow port who communicates in the outside of cylinder and is located between feed inlet and discharge outlet, the inside of cylinder is provided with the pressure stabilizing portion for material to pass discharge outlet flow steady equalization and discharge, in the utility model, the inside of cylinder is provided with the middle partition that shows a certain angle distribution with feed inlet, and the upper end surface of middle partition is flush with the middle axis line of feed inlet and sets up, can make fluid liquid level height always flush with the upper end surface of middle partition, and the surplus fluid can along with middle partition and backflow port steady overflow and discharge cylinder, effectively reduced the problem such as fluid flow process liquid level violent fluctuation and pressure not constant, thereby promoted the stability and precision of fluid flow distribution in this level backflow flow equalizer.

Description

Technical Field

[0001] This utility model relates to the field of liquid flow equalizer technology, and in particular to a backflow flow equalizer. Background Technology

[0002] A local reflux flow equalizer is a device used to regulate the flow balance in a fluid system. By returning a portion of the fluid to the local system through a reflux port, it adjusts the flow distribution within the system, ensuring that the proportions of each phase are within an appropriate range. In a centrifugal extractor, the local reflux flow equalizer can change the actual flow ratio inside the centrifugal extractor while maintaining the maximum required flow ratio. This allows for a more suitable flow ratio to be achieved, increasing the phase contact area, improving phase concentration, ensuring a stable extraction process, guaranteeing product quality, and increasing extraction efficiency.

[0003] like Figure 4 As shown, a traditional in-situ reflux flow equalizer consists of a cylinder, inlet, outlet, reflux port, vent, and spare port. When using a traditional in-situ reflux flow equalizer, the heavy phase from the centrifuge enters the cylinder through the inlet. Due to the height difference between the inlet and reflux port, when the fluid level is level with the reflux port, excess fluid will circulate back into the centrifuge through the reflux port. Furthermore, when the fluid enters the cylinder through the inlet, it is impacted and splashed onto the liquid surface, causing fluctuations in the upper layer of the liquid and real-time changes in liquid pressure. This prevents the fluid from flowing stably from the outlet and reflux port, thus hindering timely adjustment of the flow distribution within the centrifuge system. Consequently, it fails to meet the appropriate flow ratio required for centrifugal extraction, compromising product quality.

[0004] Therefore, it is particularly important to design and manufacture a flow equalizer that can keep the liquid level at the same height and ensure stable fluid flow and pressure values, which is used in the liquid system of centrifugal extractors. Utility Model Content

[0005] The purpose of this invention is to address the problem that the liquid level in the previous generation of local reflux flow equalizers easily changes in real time during actual operation, causing the flow rate and pressure of the fluid to change in real time, making it difficult to ensure a stable flow distribution of heavy phase fluids. Therefore, this local reflux flow equalizer is proposed.

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

[0007] The backflow equalizer includes a cylinder, an inlet connected to the upper part of the cylinder, an outlet connected to the lower part of the cylinder, a ball valve fixed to the outer end of the outlet, and a backflow port connected to the outside of the cylinder and located between the inlet and the outlet. The cylinder is provided with a pressure stabilizing part for the stable and balanced discharge of material through the outlet.

[0008] As a further description of the above technical solution:

[0009] The pressure stabilizing unit includes a centrally located baffle plate that is integrally fixed inside the cylinder and is distributed at an angle to the feed inlet.

[0010] As a further description of the above technical solution:

[0011] The upper surface of the central partition is flush with the central axis of the feed inlet.

[0012] As a further description of the above technical solution:

[0013] The angle between the feed inlet and the central partition is set to 15°-45°.

[0014] As a further description of the above technical solution:

[0015] The outer side of the cylinder is connected to a spare port above the feed inlet, and the upper middle part of the cylinder is connected to a vent port.

[0016] As a further description of the above technical solution:

[0017] The outer ends of the feed inlet, discharge outlet, reflux outlet, spare outlet, and vent are all fixedly connected with connecting flanges.

[0018] As a further description of the above technical solution:

[0019] The inner diameter of the feed inlet is 150mm, the inner diameter of the discharge outlet and return outlet is 80mm, and the inner diameter of the spare outlet and vent outlet is 50mm.

[0020] As a further description of the above technical solution:

[0021] The lower end of the cylinder is fixedly connected to a counterweight base, and multiple supporting ribs are fixedly connected to the outside of the counterweight base in a ring array.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] In this invention, the original flow equalizer has been scientifically and rationally improved. A central baffle is installed inside the cylinder at a certain angle to the feed inlet, and the upper end face of the central baffle is flush with the central axis of the feed inlet. When the fluid enters the cylinder through the return port, it pre-fills the cylinder and the right half of the central baffle. When the liquid level is flush with the upper end face of the central baffle, the excess fluid flows downward along the vertical surface of the central baffle and then enters the left half of the cylinder formed by the central baffle. When the fluid in the left half of the cylinder is flush with the return port, the fluid can be stably overflowed and circulated into the next stage centrifuge through the return port. This structure ensures that the fluid level is always flush with the upper end face of the central baffle, and the excess fluid can be stably overflowed and discharged from the cylinder along the central baffle and the return port. This effectively reduces the occurrence of violent fluctuations in the liquid level and unstable pressure during fluid flow, thereby improving the stability and accuracy of the flow distribution within the current stage return flow equalizer. Attached Figure Description

[0024] Figure 1 This is a simplified structural diagram of the backflow equalizer proposed in this utility model;

[0025] Figure 2 This is a longitudinal section diagram along the feed inlet axis of this utility model;

[0026] Figure 3 This is a top view of a partial cross section of the middle cylinder of this utility model;

[0027] Figure 4 This is a partial 90° cross-sectional schematic diagram of the previous generation of local return flow equalizer in the existing technology.

[0028] Legend:

[0029] 1. Cylinder body; 101. Counterweight base; 102. Support rib; 2. Inlet; 3. Outlet; 301. Ball valve; 4. Return port; 5. Spare port; 6. Vent port; 7. Connecting flange; 8. Central partition. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-4This utility model provides a technical solution: a primary reflux flow equalizer, including a cylinder 1, an inlet 2 connected to the upper part of the cylinder 1, an outlet 3 connected to the lower part of the cylinder 1, a ball valve 301 fixed to the outer end of the outlet 3, and a reflux port 4 connected to the outside of the cylinder 1 and located between the inlet 2 and the outlet 3. The cylinder 1 is provided with a pressure stabilizing part for the stable and balanced discharge of material through the outlet 3.

[0032] Specifically, such as Figure 1-3 As shown, the pressure stabilizing unit includes a centrally located baffle 8 integrally fixed inside the cylinder 1 and angled to the feed inlet 2. The upper surface of the central baffle 8 is flush with the central axis of the feed inlet 2. The angle between the feed inlet 2 and the central baffle 8 is typically between 15° and 45°. In this application, the angle is set to 30°. During real-time use, the angle between the feed inlet 2 and the central baffle 8 can be dynamically adjusted according to the inner diameter of the feed inlet 2, the feed flow rate, and the feed pressure. The smaller the angle between the central baffles 8, the more stable the fluid flow becomes when it enters the cylinder 1 through the inlet 2, as it is guided downwards along the vertical surface of the central baffle 8. However, the flow rate is slower. On the other hand, the larger the angle between the inlet 2 and the central baffle 8, the more the fluid will enter the cylinder 1 directly through the inlet 2. The fluid flow rate is faster, but the flow rate and pressure are prone to fluctuations. These fluctuations can be dynamically adjusted according to the actual usage scenario to ensure that the flow equalizer can perform normal and stable flow distribution.

[0033] Specifically, such as Figure 1-4 As shown, the outer side of the cylinder 1, above the feed inlet 2, is connected to a spare port 5. Depending on the actual usage of this stage of the reflux flow equalizer, the spare port 5 can be configured as a fluid feed line, a ventilation line, or an overflow prevention line, thereby improving the applicability of this stage of the reflux flow equalizer. The upper middle part of the cylinder 1 is connected to a vent port 6, the main function of which is to realize the circulation of air inside the cylinder 1, thereby ensuring the pressure equalization of the liquid entering the cylinder 1, and effectively preventing the problem of air pressure resisting liquid pressure affecting the normal flow of fluid. The outer ends of the feed inlet 2, the discharge port 3, the reflux port 4, the spare port 5, and the vent port 6 are all fixedly connected to connecting flanges 7. The setting of connecting flanges 7 facilitates the establishment of a stable connection between the liquid and gas lines of this stage of the reflux flow equalizer and the liquid and gas lines of other centrifuge systems through fasteners.

[0034] Among them, the inner diameter of the feed inlet 2 is 150mm, the inner diameter of the discharge outlet 3 and the return outlet 4 is 80mm, and the inner diameter of the spare outlet 5 and the vent outlet 6 is 50mm. The feed inlet 2 of this stage of the return flow equalizer has the largest flow area, allowing the fluid to quickly overflow into the cylinder 1 and fill the cylinder 1. Then, the fluid is discharged through the discharge outlet 3 and the return outlet 4, which have smaller flow areas. This ensures that the fluid enters and exits the cylinder 1 in a dynamic balance, thereby improving the stability of the actual operation of this stage of the return flow equalizer.

[0035] Specifically, such as Figure 1-4 As shown, a counterweight base 101 is fixedly connected to the lower end of the cylinder 1, which enables the center of gravity of the current stage return flow equalizer to be distributed downward, thereby improving the stability of the current stage return flow equalizer in operation and placement. Multiple support ribs 102 are fixedly connected to the outside of the counterweight base 101 in a ring array, which effectively increases the contact area between the counterweight base 101 and the ground, thereby further improving the stability of the current stage return flow equalizer in operation and placement.

[0036] Working principle: During use, the feed inlet 2, ball valve 301, reflux port 4, spare port 5, and vent port 6 are connected to the corresponding liquid or gas pipelines on the centrifuge system via fasteners and connecting flange 7. This allows the reflux flow equalizer to be installed within the centrifuge system. In actual operation, before starting work, the ball valve 301 on the discharge port 3 can be closed beforehand. Then, the fluid is controlled to enter through the feed inlet 2, allowing it to enter the right half-cavity formed by the cylinder 1 and the central baffle 8. The fluid level then gradually rises. When the fluid level is flush with the upper surface of the central baffle 8, excess fluid will overflow the central baffle 8 and then flow vertically downwards along the left end face of the central baffle 8 into the left half-cavity formed by the cylinder 1 and the central baffle 8. At this time, the fluid level in the left half-cavity will gradually rise. When the fluid level is flush with the return port 4, excess fluid can circulate into the next stage centrifuge through the return port 4. When the operator finds fluid flowing out of the return port 4, the ball valve 301 can be opened. At this time, the preparation work of the return flow equalizer of this stage is completed, and the subsequent flow distribution operation of the centrifuge system can be carried out.

[0037] 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 primary reflux flow equalizer, comprising a cylinder (1), an inlet (2) connected to the upper part of the cylinder (1), an outlet (3) connected to the lower part of the cylinder (1), a ball valve (301) fixed to the outer end of the outlet (3), and a reflux port (4) connected to the outside of the cylinder (1) and located between the inlet (2) and the outlet (3), characterized in that, The cylinder (1) is provided with a pressure stabilizing section for the material to be discharged in a stable and balanced flow through the discharge port (3).

2. The local return flow equalizer according to claim 1, characterized in that, The pressure stabilizing unit includes a centrally located partition plate (8) that is integrally fixed inside the cylinder (1) and is distributed at an angle to the feed inlet (2).

3. The local return flow equalizer according to claim 2, characterized in that, The upper end face of the central partition (8) is flush with the central axis of the feed inlet (2).

4. The local return flow equalizer according to claim 2, characterized in that, The angle between the feed inlet (2) and the central partition (8) is set to 15°-45°.

5. The local return flow equalizer according to claim 1, characterized in that, The outer side of the cylinder (1) is connected to the feed inlet (2) above the feed inlet (2) and the middle of the upper end of the cylinder (1) is connected to the vent (6).

6. The local return flow equalizer according to claim 1, characterized in that, The outer ends of the feed inlet (2), discharge outlet (3), return outlet (4), spare outlet (5) and vent outlet (6) are all fixedly connected with connecting flanges (7).

7. The local return flow equalizer according to claim 6, characterized in that, The inner diameter of the feed inlet (2) is 150 mm, the inner diameter of the discharge outlet (3) and the return outlet (4) is 80 mm, and the inner diameter of the spare outlet (5) and the vent outlet (6) is 50 mm.

8. The local return flow equalizer according to claim 1, characterized in that, The lower end of the cylinder (1) is fixedly connected to a counterweight base (101), and the counterweight base (101) is fixedly connected to a plurality of supporting ribs (102) in a ring array on the outside.

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