A performance test system for water phase feeding and discharging mechanism

Abstract

The present application belongs to the technical field of separating machine, and particularly relates to a water phase feeding and discharging mechanism performance testing system. The present application comprises a comprehensive separating device and a testing pipeline. The discharging liquid enters through a discharging liquid inlet, and flows down along a first discharging liquid channel to the bottom end of an outer cylinder body, until it is sprayed through a through hole into a discharging liquid collecting cavity, and enters a discharging liquid collecting ring through a vortex flow channel, and then flows up along a second discharging liquid channel to the discharging liquid outlet above the outer cylinder body. The feeding liquid enters into the outer shell through a feeding liquid inlet, and then is pumped into the lower cavity through a liquid suction channel formed by the impeller and the flow guide cylinder. Then the feeding liquid enters the upper cavity through the first liquid discharge hole, and then enters the preset annular cavity in the outer shell through the second liquid discharge hole, and finally is discharged through the feeding liquid outlet penetrating the outer shell. The present application can realize the online testing of the water phase feeding mechanism performance and the water phase discharging mechanism performance with one machine for multiple purposes, and finally has the advantages of compact and reasonable structure, large operation flexibility and wide application range.

Description

Technical Field

[0001] This invention belongs to the field of separator technology, specifically relating to a performance testing system for an aqueous phase feeding and discharging mechanism. Background Technology

[0002] Separators are devices used for liquid-liquid and liquid-solid separation, playing a vital role in economic production. Separators operate at high speeds, using an aqueous phase feeding mechanism to feed suspensions into the rotor. Under centrifugal force, the two phases with different densities separate, and the separated phases are discharged through the aqueous phase discharge mechanism. Therefore, the aqueous phase feeding and discharging mechanism is crucial to the separator's feeding capacity, feeding efficiency, discharge pressure and head, discharge capacity, and discharge efficiency. Its rational design is essential. When the feeding and discharging mechanism is not compatible with the process, the separator will experience problems such as low operating efficiency, unsatisfactory separation results, and low operational reliability. Currently, there is no dedicated equipment in the industry for performance testing of aqueous phase feeding and discharging mechanisms, making it difficult to fully understand their performance parameters. Relying solely on mathematical calculations without actual testing and measured data will obviously affect the efficiency of actual separator design and development, a problem that urgently needs to be addressed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a performance testing system for aqueous feeding and discharging mechanisms. This system can perform multiple functions in one machine to meet the online testing requirements for the performance of aqueous feeding and discharging mechanisms, and ultimately has the advantages of compact and reasonable structure, high operational flexibility and wide applicability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A performance testing system for an aqueous phase feeding and discharging mechanism, characterized in that it includes a comprehensive separation device and test pipelines arranged around the comprehensive separation device, wherein:

[0006] The integrated separation device includes a main shaft, which is a moving component, and an outer cylinder, which is a stationary component, which is coaxially sleeved around the main shaft. The bottom end of the main shaft is coaxially fixed to a disc, and a baffle is provided on the disc so that the baffle and the disc enclose a discharge liquid collection chamber. A discharge liquid collection ring is coaxially arranged at the bottom of the outer cylinder, and the discharge liquid collection ring is located in the discharge liquid collection chamber. A vortex-shaped flow channel is provided on the discharge liquid collection ring, and the vortex direction of the vortex-shaped flow channel is opposite to the rotation direction of the main shaft. The discharge liquid enters through the discharge liquid inlet at the outer cylinder and flows down along the first discharge liquid channel arranged at the cylinder wall to the bottom end of the outer cylinder, until it is sprayed out into the discharge liquid collection chamber through a pre-set through hole at the bottom end of the outer cylinder. It then enters the discharge liquid collection ring through the vortex-shaped flow channel and flows up to the discharge liquid outlet at the top of the outer cylinder through the pre-set second discharge channel at the cylinder wall.

[0007] The integrated separation device also includes a rotating drum fixed on the main shaft, with a disc and a baffle coaxially arranged inside the drum cavity, dividing the drum cavity into an upper cavity and a lower cavity. The upper cavity extends upward and covers the outer cylinder, with a gap between them. The lower cavity extends downward and narrows to the guide tube. An impeller is coaxially arranged inside the guide tube, and the impeller is coaxially fixed after the main shaft passes through the disc. An outer shell is provided outside the rotating drum, with a feed liquid inlet at the bottom of the outer shell. The feed liquid enters the outer shell through the feed liquid inlet and is then pumped into the lower cavity through the suction channel formed by the impeller and the guide tube. A first drain hole connecting the upper and lower cavities is arranged on the disc, and a second drain hole is arranged at the top of the upper cavity. The feed liquid then enters the upper cavity through the first drain hole, simulating a separation state, and then enters the pre-set annular cavity inside the outer shell through the second drain hole, finally being discharged from the feed liquid outlet that passes through the outer shell at the annular cavity.

[0008] The test pipeline includes an intermediate storage tank connected to the feed liquid outlet. The discharge end of the intermediate storage tank is connected to the feed end of the main storage tank via a first switching valve V1 and a first pump body. The discharge end of the main storage tank is then connected to the feed inlet of the balance tank via a second switching valve V2, a second pump body, a third switching valve V3, and a fourth switching valve V4. The discharge outlet of the balance tank is then connected to the feed liquid inlet via a fifth switching valve V5. A first pressure sensor P1 and a first flow sensor L1 are installed between the discharge outlet of the balance tank and the feed liquid inlet. The discharge liquid outlet is connected to the feed end of the intermediate storage tank via a second pressure sensor P2 and a sixth switching valve V6. The discharge liquid inlet is connected to one end of the pipeline between the third switching valve V3 and the fourth switching valve V4 via a seventh switching valve V7. The test pipeline also includes a second flow sensor for directly monitoring the output flow rate of the discharge liquid outlet or a second level gauge LIA2 for monitoring the liquid level in the intermediate storage tank.

[0009] Preferably, the inlet of the second pump body is connected to a feed pipe that connects to an external feeding device, and an eighth switch valve V8 is arranged on the feed pipe. The outlet of the second pump body is connected to the feed end of the main storage tank through a return pipe, and a ninth switch valve V9 is arranged on the return pipe.

[0010] Preferably, a first level gauge LIA1 for monitoring the liquid level inside the main storage tank is installed on the main storage tank.

[0011] Preferably, the drum includes a shell formed by combining an upper straight section cylinder and a lower conical section cylinder. A disc is installed at the junction of the upper straight section cylinder and the lower conical section cylinder. A pressure cap is fixed at the top of the shell. The pressure cap sequentially passes through an mounting cylinder and a synchronous rotating ring to press the baffle plate into the shell. A partition is provided inside the synchronous rotating ring, which divides the annular cavity of the synchronous rotating ring into an outer cavity located on the outside and an inner cavity located on the inside. The outer cavity is connected to a first drain hole, and the inner cavity is connected to a second drain hole through the mounting cylinder cavity. A third drain hole is provided through the partition to connect the outer cavity and the inner cavity.

[0012] Preferably, the first drain hole is connected to the outer cavity through the fourth drain hole arranged through the bottom plate of the synchronous rotating ring, and the cross-sectional areas of the first drain hole, the fourth drain hole, the third drain hole and the second drain hole are equal to each other or increase in sequence.

[0013] Preferably, baffles are protruding from the inner wall of the mounting cylinder, the inner wall of the inner cavity, the inner wall of the baffle plate, and the inner wall of the lower cavity.

[0014] Preferably, the bottom of the outer cylinder is provided with a discharge liquid nozzle with a through hole, and the spray direction of the discharge liquid nozzle is directed towards the discharge liquid collection chamber.

[0015] Preferably, a small shaft is coaxially protruded on the lower surface of the disk, and the small shaft and the impeller shaft form a coaxial threaded fit.

[0016] Preferably, the discharge liquid collection ring is fastened to the bottom surface of the outer cylinder by axial screws.

[0017] Preferably, the outer shell includes an upper shell and a lower shell. An overflow groove forming an annular cavity is provided in the upper shell, and the feed liquid outlet is arranged at the bottom of the overflow groove. There is a gap between the overflow wall of the overflow groove and the outer wall of the outer cylinder. A partition ring is provided in the lower shell to divide the lower shell into an overflow cavity located in the upper part and a feed liquid collection cavity located in the lower part. The feed liquid collection cavity is connected to the feed liquid inlet, and an overflow outlet connected to external equipment is provided at the bottom of the overflow cavity. The guide cylinder is coaxially fixed on the partition ring.

[0018] The beneficial effects of this invention are as follows:

[0019] 1) Based on the common requirements of separators and the actual needs of separation production, this invention provides a performance testing system with high operational flexibility, using suspension as the test feed liquid, and suitable for a wide range of applications. In practical design, the interface of the aqueous phase inlet and outlet mechanisms allows for convenient installation and testing of inlet and outlet mechanisms with different technical parameters. Simultaneously, performance testing of both the aqueous phase inlet and outlet mechanisms is achieved within a single integrated separation device, resulting in a high degree of integration. While ensuring the above integration, the inlet and outlet liquid channels are clearly separated and do not interfere with each other, resulting in a compact overall structure and strong flexibility. The system also includes electrified sensors for automated recording of test data, further improving actual testing efficiency. Furthermore, all supporting equipment used in the system are general-purpose products, readily available, easily skid-mounted, and convenient to use.

[0020] 2) In actual design, the shell serves as the outer frame, while the pressure cap, mounting cylinder, synchronous rotating ring, baffle, and disc serve as internal components, thus forming a drum with an internal main shaft. At this point, the drum and main shaft together constitute the rotor assembly. Due to the mutual pressing of the internal components, a tight fit between them is ensured. During operation, the outer cavity, inner cavity, and mounting cylinder cavity constitute the upper cavity, while the area below the disc forms the lower cavity, significantly ensuring the compact assembly of the overall components.

[0021] 3) The change in the cross-sectional area of ​​each drain hole helps to ensure smooth flow of the feed liquid.

[0022] 4) To prevent asynchronous rotation of the corresponding liquids, baffles are protruding from the inner wall of the mounting cylinder, the inner wall of the inner cavity, the inner wall of the baffle plate, and the inner wall of the lower cavity. Furthermore, it is preferable that both the impeller and the discharge liquid collection ring are detachable structures, allowing for timely replacement of these two core components according to actual conditions. This facilitates changes to test conditions and enables targeted on-site improvements, making it very convenient and flexible to use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the integrated separation device;

[0024] Figure 2 for Figure 1 A magnified view of part I;

[0025] Figure 3 This is a diagram showing the fit and connection of the rotor assembly, the center sleeve assembly, and the housing assembly.

[0026] Figure 4 for Figure 3 Enlarged view of part II;

[0027] Figure 5 A schematic diagram of the central sleeve assembly;

[0028] Figure 6 This is a cross-sectional view of the discharge liquid collection ring;

[0029] Figure 7 for Figure 6 Top view;

[0030] Figure 8 This is a diagram showing the fit between the impeller and the small shaft;

[0031] Figure 9 This is a schematic diagram of the structure of the present invention.

[0032] The actual correspondence between the reference numerals and component names in this invention is as follows:

[0033] 10-Rotor assembly; 11-Main shaft; 12-Disc; 12a-First drain hole; 12b-Small shaft; 13-Baffle plate; 14-Drum; 14a-Shell; 14b-Gland; 14c-Synchronous ring; 14d-Mounting cylinder; 14e-Baffle plate; 14f-Second drain hole; 14g-Third drain hole; 14h-Fourth drain hole; 14i-Baffle plate; 15-Impeller;

[0034] 20 - Central sleeve assembly; 21 - Outer cylinder; 21a - Discharge liquid inlet; 21b - First discharge liquid channel; 21c - Second discharge liquid channel; 21d - Discharge liquid outlet; 22 - Discharge liquid collection ring; 22a - Vortex flow channel; 23 - Discharge liquid nozzle; 24 - Axial screw;

[0035] 30-Shell assembly; 31-Outer shell; 31a-Annular cavity; 31b-Feed liquid outlet; 32-Feed liquid inlet; 33-Separating ring; 34-Overflow outlet; 35-Guide tube;

[0036] 40 - Intermediate storage tank; 50 - First pump body; 60 - Main storage tank; 70 - Second pump body; 80 - Balance tank; 91 - Feed pipeline; 92 - Return pipeline. Detailed Implementation

[0037] For ease of understanding, this section combines... Figure 1-9 The specific structure and operation of the present invention are further described below:

[0038] The actual structure of the present invention is as follows Figure 9 As shown, it includes a comprehensive separation unit with an aqueous phase inlet and outlet mechanism, and test pipelines as peripheral testing accessories, wherein:

[0039] A. Integrated Separation Unit

[0040] The actual structure of the integrated separation unit is as follows: Figure 1-8 As shown, its main structure consists of a housing assembly 30, a rotor assembly 10, a central sleeve assembly 20, a power source, and a frame.

[0041] The test objects are the discharge liquid collection ring 22, which is the discharge mechanism to be tested, and the impeller 15, which is the feed mechanism to be tested.

[0042] The frame includes support legs and a large plate on top. The power source is coaxial with the main shaft 11 of the rotor assembly 10 and mounted on the large plate, providing the power required for the high-speed rotation of the integrated separation device and the rotation of the suspension. The drum 14 in the rotor assembly 10 is coaxially fixed with the main shaft 11; during operation, the drum 14 rotates synchronously at high speed, typically 1000 r / min to 6000 r / min, but the actual speed can be designed according to process requirements and equipment technical parameters. The central sleeve assembly 20 is also coaxially set with the main shaft 11, but the size of the central hole of the central sleeve assembly 20 is larger than the outer diameter of the main shaft 11, and it does not contact the main shaft 11. The central sleeve assembly 20 is stationary and does not rotate, and has internal feeding and discharging channels. The shell assembly 30 is coaxially set outside the rotor assembly 10, used for feeding collection and discharging collection, and isolates the high-speed rotating rotor assembly 10 from the outside environment, also serving a safety protection function. The entire integrated separation unit is placed on a foundation via support legs, which facilitates raising the unit and ensuring the internal liquid phase chamber is at a certain height. See details [link to relevant documentation]. Figure 1 As shown. Wherein:

[0043] I. Rotor Assembly 10

[0044] like Figure 1 and Figure 3-4 As shown, the rotor assembly 10 includes a main shaft 11 and a drum 14. The drum 14 includes a shell portion 14a composed of an upper straight section cylinder and a lower conical section cylinder, with a disc 12 at the cylindrical-conical junction. The disc 12 separates the upper straight section cylinder and the lower conical section cylinder, forming an upper cavity and a lower cavity respectively. The lower cavity is formed by the inner surface of the lower conical section cylinder, the lower surface of the disc 12, and the outer surface of the guide tube 35, and is also called the primary dispersion cavity. To prevent the feed liquid from rotating asynchronously inside the lower conical section cylinder, baffles 14i are arranged inside the primary dispersion cavity.

[0045] Furthermore, such as Figure 3-4 As shown, the synchronous rotating ring 14c is concentrically arranged with the disk 12, and its outer surface is tightly fitted with the upper straight section of the cylinder. A sealing ring is also provided on its upper end face and circumference. A partition 14e is provided inside the synchronous rotating ring 14c, dividing the annular cavity of the synchronous rotating ring 14c into an outer cavity located on the outside and an inner cavity located on the inside. The outer cavity is connected to the first drain hole 12a, and the inner cavity is connected to the second drain hole 14f via the cavity of the mounting cylinder 14d. A third drain hole 14g is provided through the partition 14e, connecting the outer cavity and the inner cavity. Simultaneously, a fourth drain hole 14h, coaxially arranged with the first drain hole 12a, is arranged on the bottom plate of the synchronous rotating ring 14c to connect the aforementioned primary dispersion chamber with the outer cavity constituting the secondary dispersion chamber. To prevent the feed liquid from rotating asynchronously inside the synchronous rotating ring 14c, a baffle 14i is also provided in the inner cavity. The height, inner diameter, and other parameters of the synchronous swivel 14c can be manufactured as needed, giving the testing device testing flexibility.

[0046] like Figure 4 As shown, the baffle 13 is concentrically fixed on the disc 12, and the upper surface of the disc 12 and the inner surface of the baffle 13 together form the discharge liquid collection chamber. During assembly, the mounting cylinder 14d is pressed by the pressure cap 14b, which presses the synchronous rotating ring 14c against the upper surface of the disc 12. The inner surface of the mounting cylinder 14d, the inner surface of the synchronous rotating ring 14c, the upper surface of the disc 12, and the outer surface of the baffle 13 together form a separation chamber independent of the discharge liquid collection chamber. To prevent the feed liquid from rotating asynchronously inside the separation chamber, baffles 14i are also arranged inside the mounting cylinder 14d.

[0047] like Figure 8 As shown, a small shaft 12b is concentrically fixed on the lower surface of the disc 12. This small shaft 12b can also be formed by extending vertically downward from the bottom end of the main shaft 11, thus becoming the interface of the feeding mechanism. The bottom end of the small shaft 12b has a threaded opening, thereby fixing the impeller 15. When the outer diameter, blade type, number, angle, etc. of the impeller 15 are changed, its feeding performance also changes. Feeding mechanisms with different parameters can be quickly replaced through the small shaft 12b, which is convenient for testing.

[0048] In addition, such as Figure 3 As shown, the pressure cap 14b is tightly fitted to the inner surface of the upper straight section of the cylinder, and its lower end face presses against the flange face of the mounting cylinder 14d. The pressure cap 14b has a feed liquid discharge chamber machined inside, which communicates with a radially arranged second discharge hole 14f. The feed liquid in the feed liquid discharge chamber is thrown into the annular cavity 31a under the action of centrifugal force through the second discharge hole 14f and discharged from the feed liquid outlet 31b.

[0049] In actual design, in terms of cross-sectional area, the cross-sectional area of ​​the first drain hole 12a ≤ the cross-sectional area of ​​the fourth drain hole 14h ≤ the cross-sectional area of ​​the third drain hole 14g ≤ the cross-sectional area of ​​the second drain hole 14f, to ensure smooth flow of feed liquid.

[0050] II. Center Sleeve Assembly 20

[0051] Structural reference of center sleeve assembly 20 Figure 1-2 and Figure 5-7 As shown. Figure 5 As can be seen, the central sleeve assembly 20 includes an outer cylinder 21, which has a discharge liquid inlet 21a and is connected to the internal first discharge liquid channel 21b, so that the discharge liquid can reach the discharge liquid collector at the bottom and be discharged through the evenly distributed discharge liquid nozzles 23 at a certain downward angle. The angle of the discharge liquid nozzles 23 points towards the discharge liquid collection chamber.

[0052] When conducting performance tests on the discharge mechanism, refer to Figure 1-2As shown by the solid arrow, the discharge liquid enters the discharge collection chamber through the discharge liquid inlet pipe, discharge liquid inlet 21a, first discharge liquid channel 21b, and discharge liquid collector, and finally enters the discharge liquid collection chamber through the discharge liquid nozzle 23 to participate in the performance testing of the discharge mechanism. To prevent the discharge liquid from rotating asynchronously in the discharge liquid collection chamber, a baffle 14i is also provided inside. The central sleeve assembly 20 is also provided with a second discharge liquid channel 21c. The lower end of the second discharge liquid channel 21c is connected to the discharge liquid collection ring 22, and the upper end is connected to the discharge liquid outlet 21d. At this time, the discharge liquid passes through the discharge liquid collection ring 22, the second discharge liquid channel 21c, and the discharge liquid outlet 21d, and is finally discharged through the discharge liquid discharge pipe.

[0053] like Figure 4 As shown, the discharge liquid collection ring 22, constituting the discharge mechanism, is concentrically fixed to the bottom end of the central sleeve assembly 20 by axial screws 24 and is immersed in the bottom of the discharge liquid collection chamber. The discharge liquid collection ring 22 is a circular disc shape, with radial and axial channels inside, and the radial and axial channels are interconnected. The radial channels are at a certain angle and arranged in a certain direction according to the rotation direction of the rotor assembly 10, ultimately forming the following configuration: Figure 7 The vortex-shaped flow channel 22a is shown. Figure 7 The vortex-shaped flow channels 22a are arranged clockwise from a top view, while the main shaft 11 rotates counterclockwise. The shape, size, angle, and number of the vortex-shaped flow channels 22a directly affect the discharge effect. The axial channel design is relatively conventional, and in actual operation, the material can also flow naturally upward through the vortex-shaped flow channels 22a and connect to the second discharge liquid channel 21c.

[0054] III. Housing Assembly 30

[0055] like Figure 3-4 As shown, the housing assembly 30 includes an outer housing 31 coaxially formed by an upper housing and a lower housing. The outer housing 31 is ultimately mounted on a large plate via an upper flange of the upper housing. The upper housing has an overflow trough-shaped annular cavity 31a for collecting the discharged feed liquid. The bottom of the annular cavity 31a is generally sloped, with a feed liquid outlet 31b at its lowest point. The lower housing is divided by a partition ring 33 into an upper overflow cavity and a lower cavity forming the lower feed liquid collection cavity. The bottom of the upper overflow cavity has an overflow outlet 34 for discharging the liquid from the upper overflow cavity; the lower cavity has a feed liquid inlet 31c at its lowest point for feeding the feed liquid into the feed liquid collection cavity.

[0056] like Figure 3As shown, a guide tube 35 is coaxially fixed at the center of the separator ring 33. Both the upper and lower ends of the guide tube have flared openings, with the larger opening facing outwards. The guide tube 35 extends into the lower cavity. The inner diameter of the guide tube 35 should be larger than the outer diameter of the impeller 15 of the feeding mechanism, generally controlled within 1mm-10mm on one side. This gap directly affects key process data such as feeding capacity and stirring intensity, and is one of the important parameters for controlling the feeding mechanism. Figure 3 As shown, the upper housing is also sealed with a liquid inlet pipe and a liquid outlet pipe. Both the liquid inlet pipe and the liquid outlet pipe pass through the annular cavity 31a and are directly connected to the central sleeve assembly 20 by pipe thread.

[0057] B. Test piping

[0058] Based on the above structure, it can be seen that the integrated separation device is actually used as a basic test platform for performance testing of the aqueous phase feeding mechanism and the aqueous phase discharging mechanism. During specific testing, corresponding test pipelines can be added to further improve its overall testing efficiency and specify its testing process, specifically including inlet test pipelines and outlet test pipelines:

[0059] The liquid inlet test pipeline includes an intermediate storage tank 40 connected to the feed liquid outlet 31b. The discharge end of the intermediate storage tank 40 is connected to the feed end of the main storage tank 60 via a first switching valve V1 and a first pump body 50. The discharge end of the main storage tank 60 is then connected to the feed inlet of the balance tank 80 via a second switching valve V2, a second pump body 70, a third switching valve V3, and a fourth switching valve V4. The discharge outlet of the balance tank 80 is then connected to the feed liquid inlet 32 ​​via a fifth switching valve V5. A first pressure sensor P1 and a first flow sensor L1 are installed between the discharge outlet of the balance tank 80 and the feed liquid inlet.

[0060] The discharge test pipeline includes a second pressure sensor P2 connected to the discharge outlet 21d. The other end of the second pressure sensor is connected to the feed end of the intermediate storage tank 40 via a sixth switching valve V6. Subsequently, the discharge end of the main storage tank 60 is connected to the discharge inlet 21a via a second switching valve V2, a second pump body 70, a third switching valve V3, and a seventh switching valve V7. The test pipeline also includes a second flow sensor for directly monitoring the output flow rate of the discharge outlet or a second level gauge LIA2 for monitoring the liquid level in the intermediate storage tank 40.

[0061] Furthermore, the system also includes a pumping channel formed by the combination of the feed pipe 91 and the return pipe 92. When it is necessary to pump in external liquid, the second switch valve V2 and the third switch valve V3 are closed, and the eighth switch valve V8 and the ninth switch valve V9 are opened to connect the external liquid. The external liquid can then be pumped into the main storage tank 60 using the second pump body 70.

[0062] Considering the liquid level monitoring requirements of the main storage tank 60, a first liquid level gauge LIA1 for monitoring the liquid level inside the main storage tank 60 can also be installed on the main storage tank 60.

[0063] To facilitate a further understanding of the present invention, the following is combined with... Figure 1-4 and Figure 9 The actual testing process of this invention is described below:

[0064] 1. Feeding mechanism performance test

[0065] Install the impeller 15, which serves as the feeding mechanism, start the integrated separation device, and operate the main shaft 11 at its rated speed. Close all valves on the discharge pipeline of the discharge liquid outlet 21d. Start the second pump body 70 and adjust the opening of each valve on the outlet pipeline of the second pump body 70 to ensure a stable liquid level in the balance tank 80. Open the corresponding valves on the pipeline between the balance tank 80 and the feed liquid inlet 32 ​​to begin feeding. During the design process, the height H2 of the overflow port of the balance tank 80 from the ground can be slightly less than or equal to the height H1 of the highest normal liquid level at the guide tube 35 from the ground. Therefore, the liquid level in the integrated separation device should reach the upper flared end of the guide tube 35 to submerge the impeller 15 of the feeding mechanism.

[0066] The performance test of the feeding mechanism begins. The power source starts, and the main shaft 11 drives the impeller 15 to rotate at high speed. The blades on the impeller 15 generate a pumping action, pumping the feed liquid into the primary dispersion chamber (lower chamber). It then sequentially enters the secondary dispersion chamber (outer chamber) through the first drain hole 12a and the fourth drain hole 14h, then through the third drain hole 14g into the inner chamber, and finally into the separation chamber, simulating a separation process. Finally, the discharge liquid is thrown into the annular cavity 31a of the outer shell 31 by centrifugal force through the second drain hole 14f at the pressure cap 14b, and discharged from the feed liquid outlet 31b. The specific flow path is shown in the figure. Figure 1 and Figure 4 As shown by the solid arrow.

[0067] During the test, the performance of the feeding mechanism, i.e. the pumping action it generates, can be detected by the first pressure sensor P1. The pressure value of the first pressure sensor P1 directly reflects the suction pressure of the feeding mechanism. The higher the pressure value, the stronger the pumping action, which is beneficial to separation equipment with large technical parameters. The first flow sensor L1 is used to detect the amount of feed liquid sucked in, reflecting the production capacity of the feeding mechanism.

[0068] During the testing process, the type of feed liquid, feed temperature, feed speed, etc. can be changed to simulate actual working conditions and test the performance of the feeding mechanism.

[0069] 2. Performance test of the discharge mechanism

[0070] Install the discharge liquid collection ring 22, which serves as the discharge mechanism, and ensure it is submerged below the liquid level in the guide tube 35. Begin the performance test of the discharge mechanism. At this time, turn the integrated separation device to its rated speed, close the corresponding switch valves on the pipeline between the balance tank 80 and the feed liquid inlet 32, turn on the second pump body 70, and adjust the opening of the switch valves on the two pipelines at its outlet accordingly to ensure that the discharge liquid enters the feed liquid inlet 32 ​​smoothly at a certain flow rate.

[0071] The discharge liquid enters the discharge liquid collection chamber through the discharge liquid inlet pipe, discharge liquid inlet 21a, first discharge liquid channel 21b, and discharge liquid nozzle 23. Under the high-speed rotation of the drum 14, the discharge liquid is driven to rotate synchronously; relative to the stationary discharge liquid collection ring 22, the discharge liquid is squeezed by a certain centrifugal force and enters the vortex-shaped flow channel 22a of the discharge liquid collection ring 22, then passes through the second discharge liquid channel 21c and discharge liquid outlet 21d, and is finally discharged through the discharge liquid discharge pipe. For the specific flow path, refer to... Figure 1 and Figure 2 As shown by the solid arrow.

[0072] The performance of the discharge mechanism can be detected by the second pressure sensor P2. The pressure value detected by the sensor directly reflects the output pressure of the discharge mechanism. The higher the pressure value, the stronger the output effect and the higher the output head, which is beneficial to separation equipment with large technical parameters. The output flow rate of the discharge mechanism can be realized by arranging the second flow sensor, or it can be obtained by detecting the liquid level in the intermediate storage tank 40. The output flow rate also reflects the production capacity of the discharge mechanism.

[0073] During the testing process, the type of discharge liquid, temperature of discharge liquid, rotation speed, etc. can be changed to simulate actual working conditions and test the performance of the discharge mechanism.

[0074] Of course, those skilled in the art will recognize that the present invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0075] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0076] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A performance testing system for an aqueous phase feeding and discharging mechanism, characterized in that: This includes a comprehensive separation unit and test pipelines arranged around the periphery of the comprehensive separation unit, wherein: The integrated separation device includes a main shaft (11) coaxially arranged as a moving component and an outer cylinder (21) coaxially sleeved outside the main shaft (11) as a stationary component; the bottom end of the main shaft (11) is coaxially fixed on a disc (12), and a baffle (13) is provided on the disc (12) so that the baffle (13) and the disc (12) enclose a discharge liquid collection chamber; a discharge liquid collection ring (22) is coaxially arranged at the bottom of the outer cylinder (21), and the discharge liquid collection ring (22) is located inside the discharge liquid collection chamber. A vortex-shaped flow channel (22a) is provided on the discharge liquid collection ring (22) and the vortex-shaped flow channel (22a) is provided. The vortex direction of the channel (22a) is opposite to the rotation direction of the main shaft (11); the discharge liquid enters through the discharge liquid inlet (21a) at the outer cylinder (21), and flows down along the first discharge liquid channel (21b) arranged at the cylinder wall of the outer cylinder (21) to the bottom of the outer cylinder (21), until it is sprayed out into the discharge liquid collection chamber through the preset through hole at the bottom of the outer cylinder (21), and enters the discharge liquid collection ring (22) through the vortex flow channel (22a), and then flows up to the discharge liquid outlet (21d) above the outer cylinder (21) through the preset second discharge channel (21c) at the cylinder wall of the outer cylinder (21); The integrated separation device also includes a rotating drum (14) fixed on the main shaft (11). The disc (12) and the baffle (13) are coaxially arranged in the drum cavity of the rotating drum (14), thereby dividing the drum cavity of the rotating drum (14) into an upper cavity and a lower cavity. The upper cavity extends upward and covers the outer cylinder (21) with a gap between it and the outer cylinder (21). The lower cavity extends downward and narrows to the guide tube (35). An impeller (15) is coaxially arranged in the guide tube (35). The main shaft (11) passes through the disc (12) and then coaxially fixes the impeller (15). An outer shell (31) is provided outside the rotating drum (14). A feed liquid inlet is provided at the bottom of the outer shell (31). The feed liquid enters the outer shell (31) through the feed liquid inlet (32), and is then pumped into the lower chamber through the suction channel formed by the impeller (15) and the guide tube (35). A first drain hole (12a) connecting the upper chamber and the lower chamber is arranged on the disc (12), and a second drain hole (14f) is arranged at the top of the upper chamber. The feed liquid then enters the upper chamber through the first drain hole (12a) to simulate the separation state, and then enters the pre-set annular cavity (31a) in the outer shell (31) through the second drain hole (14f), and is finally discharged through the feed liquid outlet (31b) that penetrates the outer shell (31) at the annular cavity (31a). The test pipeline includes an intermediate storage tank (40) connected to the feed liquid outlet (31b). The outlet of the intermediate storage tank (40) is connected to the feed end of the main storage tank (60) via a first switching valve V1 and a first pump body (50). The outlet of the main storage tank (60) is then connected to the feed inlet of the balance tank (80) via a second switching valve V2, a second pump body (70), a third switching valve V3, and a fourth switching valve V4. The outlet of the balance tank (80) is then connected to the feed liquid inlet (32) via a fifth switching valve V5. The outlet of the balance tank (80) and the feed liquid inlet (31b) are connected to the feed liquid inlet (32). 32) A first pressure sensor P1 and a first flow sensor L1 are provided between them; the discharge liquid outlet (21d) is connected to the feed end of the intermediate storage tank (40) via the second pressure sensor P2 and the sixth switch valve V6, and the discharge liquid inlet (21a) is connected to one end of the pipeline between the third switch valve V3 and the fourth switch valve V4 via the seventh switch valve V7. The test pipeline also includes a second flow sensor for directly monitoring the output flow of the discharge liquid outlet (21d) or a second level gauge LIA2 for monitoring the liquid level in the intermediate storage tank (40).

2. The performance testing system for a water phase feeding and discharging mechanism according to claim 1, characterized in that: The inlet of the second pump body (70) is connected to a feed pipe (91) that connects to an external feed device. An eighth switch valve V8 is arranged on the feed pipe (91). The outlet of the second pump body (70) is connected to the feed end of the main storage tank (60) through a return pipe (92). A ninth switch valve V9 is arranged on the return pipe (92).

3. The performance testing system for a water phase feeding and discharging mechanism according to claim 1, characterized in that: A first level gauge LIA1 is installed on the main storage tank (60) to monitor the liquid level inside the main storage tank (60).

4. A performance testing system for a water phase feeding and discharging mechanism according to claim 1, 2, or 3, characterized in that: The drum (14) includes a shell (14a) formed by the combination of an upper straight section cylinder and a lower conical section cylinder. A disc (12) is installed at the junction of the upper straight section cylinder and the lower conical section cylinder. A pressure cap (14b) is fixed at the top of the shell (14a). The pressure cap (14b) sequentially passes through the mounting cylinder (14d) and the synchronous rotating ring (14c) to press the baffle (13) into the shell (14a). A partition (14e) is provided inside the synchronous rotating ring (14c). The partition (14e) divides the annular cavity of the synchronous rotating ring (14c) into an outer cavity located on the outside and an inner cavity located on the inside. The outer cavity is connected to the first drain hole (12a). The inner cavity is connected to the second drain hole (14f) through the cylinder cavity of the mounting cylinder (14d). A third drain hole (14g) is provided through the partition (14e) to connect the outer cavity and the inner cavity.

5. The performance testing system for a water phase feeding and discharging mechanism according to claim 4, characterized in that: The first drain hole (12a) is connected to the outer cavity through the fourth drain hole (14h) arranged through the bottom plate of the synchronous rotating ring (14c), and the cross-sectional areas of the first drain hole (12a), the fourth drain hole (14h), the third drain hole (14g), and the second drain hole (14f) are equal to each other or increase in sequence.

6. The performance testing system for a water phase feeding and discharging mechanism according to claim 5, characterized in that: Baffles (14i) are protruding from the inner wall of the mounting cylinder (14d), the inner wall of the inner cavity, the inner wall of the baffle (13), and the inner wall of the lower cavity.

7. A performance testing system for a water phase feeding and discharging mechanism according to claim 1, 2, or 3, characterized in that: The bottom of the outer cylinder (21) is provided with a discharge liquid nozzle (23) with a through hole, and the spray direction of the discharge liquid nozzle (23) is directed towards the discharge liquid collection chamber.

8. A performance testing system for a water phase feeding and discharging mechanism according to claim 1, 2, or 3, characterized in that: A small shaft (12b) is coaxially protruded on the lower surface of the disc (12), and the small shaft (12b) and the impeller (15) shaft form a coaxial threaded fit.

9. A performance testing system for a water phase feeding and discharging mechanism according to claim 1, 2, or 3, characterized in that: The discharge liquid collection ring (22) is fastened to the bottom surface of the outer cylinder (21) by axial screws (24).

10. A performance testing system for a water phase feeding and discharging mechanism according to claim 1, 2, or 3, characterized in that: The outer shell (31) includes an upper shell and a lower shell. An overflow groove forming an annular cavity (31a) is provided at the upper shell. The feed liquid outlet (31b) is arranged at the bottom of the overflow groove. There is a gap between the overflow wall of the overflow groove and the outer wall of the outer cylinder (21). A partition ring (33) is provided at the lower housing to divide the lower housing into an overflow chamber located at the top and a feed liquid collection chamber located at the bottom. The feed liquid collection chamber is connected to the feed liquid inlet (32), and an overflow outlet (34) connected to an external device is provided at the bottom of the overflow chamber. The guide tube (35) is coaxially fixed on the partition ring (33).

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