Water phase inlet and outlet mechanism performance test device

Abstract

The present invention belongs to the technical field of separators, and specifically relates to a performance testing device for a water-phase feed and discharge mechanism. The discharge liquid of the present invention enters through the discharge liquid inlet, and descends along the first discharge liquid channel to the bottom end of the outer cylinder, until it is sprayed out from the through hole into the discharge liquid collection chamber, and enters the discharge liquid collection ring through the spiral flow channel, and then ascends through the second discharge liquid channel to the discharge liquid outlet above the outer cylinder; the feed liquid enters the outer shell through the feed liquid inlet, and is then pumped into the lower chamber through the suction channel formed by the impeller and the guide tube; then enters the upper chamber through the first drainage hole, and then enters the preset annular cavity in the outer shell through the second drainage hole, and finally is discharged from the feed liquid outlet that passes through the outer shell at the annular cavity. The present invention not only provides a basic test platform for the performance test of the water-phase feeding mechanism and the performance test of the water-phase discharge mechanism, but also integrates the performance test of the water-phase feeding mechanism and the performance test of the water-phase discharge mechanism into one.

Description

Technical Field

[0001] The invention belongs to the technical field of separators, and in particular relates to a performance testing device for a water phase feeding and discharging mechanism. Background Art

[0002] Separators are equipment for liquid-liquid and liquid-solid separation, and they play an important role in economic production. The separator operates at high speed, relying on an aqueous phase feed mechanism to feed the suspension into the rotor. Centrifugal force separates the two phases of different densities, and the aqueous phase discharge mechanism then discharges the separated phases. Therefore, the aqueous phase feed and discharge mechanism is related to the separator's feed capacity, feed efficiency, discharge pressure and head, discharge capacity, and discharge efficiency, making its reasonable design crucial. When the feed and discharge mechanism does not match the process, the separator will experience problems such as low efficiency, unsatisfactory separation results, and low operational reliability. Currently, the industry lacks specialized performance testing equipment for aqueous phase feed and discharge mechanisms, making it difficult to fully grasp their performance parameters. Relying solely on mathematical calculations without actual testing and measured data will clearly affect the actual design and R&D efficiency of the separator, and this issue urgently needs to be addressed. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a water phase feeding and discharging mechanism performance testing device, which not only provides a basic testing platform for the water phase feeding mechanism performance test and the water phase discharging mechanism performance test, but also integrates the water phase feeding mechanism performance test and the water phase discharging mechanism performance test into one, ultimately making it have the advantages of compact and reasonable structure, great operational flexibility and wide range of applications.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The cam is secured to the bottom of the drum and is secured to a central area within the drum, wherein the drum is secured to a central area within the drum and is rotatable therein. The cam is secured to the bottom of the drum and is rotated to move relative to the drum. The cam is secured to the bottom of the drum and is rotated to move relative to the drum.

[0006] The device also includes a drum fixed on the main shaft, and the disc and the baffle are coaxially arranged in the drum cavity of the drum, thereby 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 the upper cavity and the outer cylinder, and the lower cavity extends downward and closes to the guide cylinder; the impeller is coaxially arranged in the guide cylinder, and the impeller is coaxially fixed after the main shaft passes through the disc; an outer shell is provided outside the drum, and a feed liquid inlet is provided 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 cylinder; a first drainage hole connecting the upper cavity and the lower cavity is arranged on the disc, and a second drainage hole is arranged on the top of the upper cavity; the feed liquid then enters the upper cavity through the first drainage hole to simulate a separation state, and then enters the preset annular cavity in the outer shell through the second drainage hole, and is finally discharged from the feed liquid outlet at the annular cavity that passes through the outer shell.

[0007] Preferably, the drum includes a shell formed by a combination of an upper straight section cylinder and a lower conical section cylinder, the disc is installed at the junction of the upper straight section cylinder and the lower conical section cylinder, and a pressure cover is fixed on the top of the shell, which presses the baffle into the shell through the mounting cylinder and the synchronous rotating ring in sequence; a partition is provided in 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 the first drainage hole, and the inner cavity is connected to the second drainage hole via the mounting cylinder cavity; a third drainage hole connecting the outer cavity and the inner cavity is provided through the partition.

[0008] Preferably, the first drainage hole is connected to the outer cavity through the fourth drainage hole arranged on the bottom plate of the synchronous rotating ring, and: the cross-sectional area of the first drainage hole, the fourth drainage hole, the third drainage hole and the second drainage hole are equal to each other or increase sequentially.

[0009] 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.

[0010] Preferably, a discharge liquid nozzle communicating with the through hole is arranged at the bottom of the outer cylinder, and the spraying direction of the discharge liquid nozzle points to the discharge liquid collecting chamber.

[0011] Preferably, a small shaft is coaxially protruded on the lower surface of the disc, and a coaxial threaded fit is formed between the small shaft and the impeller shaft.

[0012] Preferably, the discharge liquid collecting ring is fastened to the bottom surface of the outer cylinder by an axial screw.

[0013] Preferably, the outer shell includes an upper shell and a lower shell, an overflow groove constituting an annular cavity is provided at the upper shell, the feed liquid outlet is arranged at the bottom of the overflow groove, and there is a gap between the overflow wall of the overflow groove and the outer wall of the outer cylinder.

[0014] Preferably, a separation ring is provided at the lower shell to divide the lower shell into an overflow chamber located at the upper part and a feed liquid collecting chamber located at the lower part. The feed liquid collecting chamber is connected to the feed liquid inlet, and an overflow outlet connected to the external equipment is provided at the bottom of the overflow chamber; the guide tube is coaxially fixed on the separation ring.

[0015] Preferably, the inner diameter of the guide tube should be larger than the outer diameter of the impeller, and the single side should be controlled within 1mm to 10mm.

[0016] The beneficial effects of the present invention are:

[0017] 1) The present invention can provide a performance testing device with great operational flexibility and a wide range of applicability based on the common requirements of separators and the actual needs of separation production. During actual testing, the present invention not only provides a basic testing platform for the performance testing of the aqueous phase feeding mechanism and the aqueous phase discharging mechanism, but also, by designing the interface of the aqueous phase feeding and discharging mechanism, it is convenient to install feeding and discharging mechanisms with different technical parameters for testing, with a high degree of integration. In addition, while ensuring the above-mentioned integration, the feeding liquid flow channel and the discharging liquid flow channel are clearly separated from each other and do not interfere with each other. The overall structure is compact, easy to skid, and has strong flexibility in use.

[0018] 2) In the actual design, the shell serves as the exoskeleton, while the gland, mounting cylinder, synchronizing ring, baffle, and disc serve as internal components, forming a rotating drum with an internal spindle. Together, the drum and spindle comprise the rotor assembly. The interlocking of the internal components ensures a tight fit. During operation, the outer cavity, inner cavity, and mounting cylinder cavity form the upper chamber, while the area beneath the disc forms the lower chamber, significantly ensuring the compactness of the overall assembly.

[0019] 3) The arrangement of the baffles creates a zigzag path for the feed liquid, allowing the suspension to be separated to enter the inner cavity formed by the baffles and the synchronous rotating ring for separation. The volume of this inner cavity is one of the primary factors determining separation time. Furthermore, the suspensions used in this type of separation equipment often have a low solids content, mostly below 0.5%, but the particles are fine and sticky, making them difficult to separate, such as yeast liquid and catalysts. The zigzag path for the feed liquid in the present invention allows the majority of these fine and sticky particles to settle at high speed in the initial separation zone, within the lower cavity of the drum cone, avoiding entry into the internal separation zone and preventing or delaying blockage of the internal flow path. Combined with the varying cross-sectional areas of the drainage holes, this helps ensure smooth flow of the feed liquid.

[0020] 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. At the same time, the impeller and discharge liquid collection ring are preferably both detachable structures, so that these two core components can be replaced in a timely manner according to actual conditions, facilitating the modification of test conditions and achieving targeted on-site measurement and improvement purposes, making it very convenient and flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 for Figure 1 A partial enlarged view of part I;

[0023] Figure 3 A diagram showing the mating state of the rotor assembly, the center sleeve assembly, and the housing assembly;

[0024] Figure 4 for Figure 3 A partial enlarged view of part II;

[0025] Figure 5 Schematic diagram of the structure of the center sleeve assembly;

[0026] Figure 6 It is a cross-sectional view of the discharge liquid collecting ring;

[0027] Figure 7 for Figure 6 A top view of

[0028] Figure 8 This is the diagram of the matching status of the impeller and the small shaft.

[0029] The actual correspondence between the reference numerals and component names of the present invention is as follows:

[0030] 10-rotor assembly; 11-main shaft; 12-disc; 12a-first drainage hole; 12b-small shaft; 13-baffle; 14-drum; 14a-shell; 14b-pressure cover; 14c-synchronizing ring; 14d-mounting cylinder; 14e-partition plate; 14f-second drainage hole; 14g-third drainage hole; 14h-fourth drainage hole; 14i-baffle; 15-impeller;

[0031] 20 - center 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 - scroll flow channel; 23 - discharge liquid nozzle; 24 - axial screw;

[0032] 30 - shell assembly; 31 - outer shell; 31a - annular cavity; 31b - feed liquid outlet; 32 - feed liquid inlet; 33 - separation ring; 34 - overflow outlet; 35 - guide tube. DETAILED DESCRIPTION

[0033] For ease of understanding, here we combine Figure 1-8 The specific structure and working mode of the present invention are further described as follows:

[0034] According to the common requirements of separators and the actual needs of separation production, the present invention designs a separator that simulates a high-speed rotating force field and has a certain operational flexibility to meet the existing measured needs of the water phase inlet and outlet mechanism of the separator operating under different working conditions.

[0035] More specifically, the actual structure of the present invention is as follows Figure 1-8 As shown, its main structure consists of a housing assembly 30, a rotor assembly 10, a center sleeve assembly 20, a power source, and a frame.

[0036] The test objects are the discharge liquid collecting ring 22 as the discharge mechanism to be tested and the impeller 15 as the feed mechanism to be tested.

[0037] The frame includes support legs and a large plate located above. The power source is coaxial with the main shaft 11 of the rotor assembly 10 and is mounted on the large plate, providing the power required for high-speed rotation of the separator and the suspension. The drum 14 in the rotor assembly 10 is fixed coaxially with the main shaft 11. During operation, the drum 14 rotates synchronously at high speeds, typically ranging from 1000 to 6000 r / min, but can be designed based on process requirements and equipment specifications. The center sleeve assembly 20 is also coaxial with the main shaft 11, but the center hole of the center sleeve assembly 20 is larger than the outer diameter of the main shaft 11 and does not contact the main shaft 11. The center sleeve assembly 20 is stationary and non-rotating, and contains internal channels for feeding and discharging materials. The housing assembly 30 is coaxially mounted outside the rotor assembly 10 to collect the feed and liquid, and to isolate the high-speed rotating rotor assembly 10 from the outside world, providing both safety and protection. The entire separator is placed on the foundation through the support legs, which helps to raise the separator so that the internal liquid phase cavity has a certain height. Figure 1 As shown. Among them:

[0038] 1. Rotor assembly 10

[0039] like Figure 1 and Figure 3-4As shown, the rotor assembly 10 comprises a main shaft 11 and a drum 14. Drum 14 comprises a shell 14a formed by an upper straight section and a lower conical section. A disc 12 is positioned at the junction of the cylinder and cone. Disc 12 separates the upper straight section from the lower conical section, forming an upper chamber and a lower chamber, respectively. The lower chamber, also known as the primary dispersion chamber, is enclosed by the inner surface of the lower conical section, the lower surface of disc 12, and the outer surface of the draft tube 35. To prevent asynchronous rotation of the feed liquid within the lower conical section, a baffle 14i is positioned within the primary dispersion chamber.

[0040] Further, such as Figure 3-4 As shown, synchronizer ring 14c is concentrically positioned with disk 12, its outer surface tightly fitting the upper straight section. A sealing ring is also provided on its upper end surface and circumference. A partition 14e is installed within synchronizer ring 14c, dividing the annular cavity of synchronizer 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 drainage hole 12a, while the inner cavity is connected to the second drainage hole 14f via the cavity of the mounting cylinder 14d. A third drainage hole 14g is provided through partition 14e, connecting the outer and inner cavities. Furthermore, a fourth drainage hole 14h, coaxial with the first drainage hole 12a, is located on the bottom plate of synchronizer ring 14c. This hole connects the aforementioned primary dispersion chamber with the outer cavity that constitutes the secondary dispersion chamber. To prevent asynchronous rotation of the feed liquid within synchronizer ring 14c, a baffle 14i is also installed within the inner cavity. The height, inner diameter and other parameters of the synchronous rotating ring 14c can be manufactured according to needs, so that the testing device has testing flexibility.

[0041] like Figure 4 As shown, baffle 13 is concentrically fixed to disk 12. The upper surface of disk 12 and the inner surface of baffle 13 together form a discharge liquid collection chamber. During assembly, mounting cylinder 14d is compressed by gland 14b, pressing synchronizing ring 14c against the upper surface of disk 12. The inner surface of mounting cylinder 14d, the inner surface of synchronizing ring 14c, the upper surface of disk 12, and the outer surface of baffle 13 together form a separation chamber independent of the discharge liquid collection chamber. To prevent asynchronous rotation of the feed liquid within the separation chamber, a baffle 14i is also positioned within mounting cylinder 14d.

[0042] like Figure 8 As shown, a small shaft 12b is coaxially fixed to the lower surface of disk 12. This small shaft 12b can also be formed by a vertical downward extension from the bottom end of main shaft 11, forming the interface of the feed mechanism. A threaded opening is provided at the bottom end of small shaft 12b to secure impeller 15. Changing the outer diameter, blade type, number, and angle of impeller 15 will also change its feeding performance. Feed mechanisms with different parameters can be quickly replaced via small shaft 12b, facilitating testing.

[0043] In addition, if Figure 3As shown, the gland 14b fits tightly against the inner surface of the upper straight section, with its lower end surface pressing against the flange surface of the mounting tube 14d. A feed liquid drainage cavity is machined inside the gland 14b and communicates with radially disposed second drainage holes 14f. The feed liquid in the drainage cavity is centrifugally ejected from the second drainage holes 14f into the annular cavity 31a and discharged through the feed liquid outlet 31b.

[0044] In actual design, in terms of cross-sectional area, the cross-sectional area of the first drainage hole 12a ≤ the cross-sectional area of the fourth drainage hole 14h ≤ the cross-sectional area of the third drainage hole 14g ≤ the cross-sectional area of the second drainage hole 14f to ensure smooth flow of the feed liquid.

[0045] 2. Center sleeve assembly 20

[0046] The structure of the central sleeve assembly 20 is shown in FIG. Figure 1-2 and Figure 5-7 shown. Figure 5 In the figure, it can be seen that the central sleeve assembly 20 includes an outer cylinder 21, which is provided with a discharge liquid inlet 21a and communicates with the first discharge liquid channel 21b inside, so that the discharge liquid reaches the discharge liquid collector at the bottom and is discharged through the evenly distributed discharge liquid nozzles 23 at a certain downward angle. The discharge liquid nozzles 23 are angled toward the discharge liquid collection chamber.

[0047] When testing the performance of the discharge mechanism, refer to Figure 1-2 As shown by the solid arrows, the discharge liquid passes through the discharge liquid feed pipe, the discharge liquid inlet 21a, the first discharge liquid channel 21b and the discharge liquid collector, and finally enters the discharge liquid collection chamber through the discharge liquid nozzle 23 to participate in the performance test 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 center sleeve assembly 20 is also provided with a second discharge liquid channel 21c, the lower end of which 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, the discharge liquid outlet 21d, and is finally discharged from the discharge liquid discharge pipe.

[0048] like Figure 4 As shown, the discharge liquid collection ring 22 constituting the discharge mechanism is fixed concentrically to the bottom end of the central sleeve assembly 20 by an axial screw 24 and immersed in the bottom of the discharge liquid collection chamber. The discharge liquid collection ring 22 is in the shape of a circular disk, with radial channels and axial channels provided inside, and the radial channels and axial channels are interconnected. The radial channels are arranged at a certain angle and in a certain direction according to the rotation direction of the rotor assembly 10, and the final combination forms the following. Figure 7 The scroll-shaped flow channel 22a is shown. Figure 7The scroll-shaped flow channel 22a is arranged clockwise from a top-down perspective, while the corresponding main shaft 11 rotates counterclockwise. The shape, size, angle, and number of the scroll-shaped flow channel 22a are directly related to the discharge effect. The axial channel design is relatively conventional, and in actual operation, the scroll-shaped flow channel 22a can also directly ascend naturally and connect to the second discharge liquid channel 21c.

[0049] 3. Shell assembly 30

[0050] like Figure 3-4 As shown, the housing assembly 30 includes an outer housing 31, which is coaxially formed by an upper housing and a lower housing. The outer housing 31 is ultimately mounted on a large plate via the upper flange of the upper housing. An annular chamber 31a, shaped like an overflow trough, is provided within the upper housing to collect discharged feed liquid. The bottom of the annular chamber 31a is generally sloped, with a feed liquid outlet 31b located at its lowest point. The lower housing is divided by a separator ring 33 into an upper overflow chamber and a lower chamber, which serves as a lower feed liquid collection chamber. An overflow outlet 34 is located at the bottom of the upper overflow chamber to drain liquid from the upper overflow chamber. A feed liquid inlet 31c is located at the lower level of the lower chamber to supply feed liquid to the feed liquid collection chamber.

[0051] like Figure 3 As shown, a guide tube 35 is coaxially fixed to the center of the separator ring 33. It has a bell-shaped top and bottom with the larger end facing outward. 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 feed mechanism, generally controlled at 1mm to 10mm per side. This gap directly affects key process data such as feed capacity and stirring intensity, and is one of the important parameters for controlling the feed mechanism. Figure 3 As shown, a discharge liquid feed pipe and a discharge liquid discharge pipe are also sealed on the upper shell body. Both the discharge liquid feed pipe and the discharge liquid discharge pipe pass through the annular cavity 31a and are directly connected to the central sleeve assembly 20 through pipe threads.

[0052] Based on the above structure, it can be seen that the present invention actually serves as a basic testing platform for testing the performance of the aqueous phase feed mechanism and the aqueous phase discharge mechanism. During specific testing, the performance of the feed mechanism, namely the pumping action it generates, can be monitored by a feed pressure sensor. The pressure value of the feed pressure sensor directly reflects the suction pressure of the feed mechanism. The higher the pressure value, the stronger the pumping action, which is beneficial for separation equipment with larger technical parameters. The feed flow rate sensor is used to detect the amount of feed liquid sucked in, reflecting the production capacity of the feed mechanism. Simultaneously, the performance of the discharge mechanism can be monitored by a discharge pressure sensor. 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 action and the higher the output head, which is beneficial for separation equipment with larger technical parameters. The output flow rate of the discharge mechanism can also be achieved by installing a discharge flow sensor on the discharge mechanism pipeline, or by monitoring the liquid level in the corresponding storage tank. The output flow rate reflects the production capacity of the discharge mechanism. When conducting actual overall system testing, corresponding sensors are required, and the information collected by these sensors can be input into the control system for data processing, thereby achieving automated and electrified operation.

[0053] In order to further understand the present invention, Figure 1-4 , the actual test process of the present invention is described as follows:

[0054] 1. Feeding mechanism performance test

[0055] The feed mechanism performance test begins. The power source is activated, and the main shaft 11 drives the impeller 15 to rotate at high speed. The blades on the impeller 15 create a pumping action, pumping the feed liquid into the primary dispersion chamber, or lower chamber. Then, through the first and fourth drainage holes 12a and 14h, it enters the secondary dispersion chamber, or outer chamber, through the third drainage hole 14g, into the inner chamber, and finally into the separation chamber, simulating a separation state. Because the suspension used in this type of separation equipment has a low solids content, mostly below 0.5%, the particles are fine and sticky, making them difficult to separate, such as yeast liquid and catalysts. In the present invention, before the feed liquid enters the first drainage hole 12a, most of the fine and sticky particles settle at high speed in the lower chamber of the drum cone, preventing them from entering the internal separation zone and preventing or delaying clogging of the internal flow path. A very small amount of particles enter the interior and do not affect material separation. Because the particle content is low, the machine is shut down after a period of time for manual cleaning or the addition of a cleaning agent to dissolve and remove the particles. Subsequently, the discharge liquid is thrown into the annular cavity 31a of the outer shell 31 by the centrifugal force from the second discharge hole 14f at the pressure cover 14b, and discharged from the feed liquid outlet 31b. Figure 1 and Figure 4As indicated by the solid arrow in the figure, in actual use, feed liquid outlet 31b is connected to external equipment such as pipelines, valves, and collection tanks to collect the separated clarified liquid. To prevent misoperations such as pipeline blockage, valve failure, or overflowing collection tanks from causing the clarified liquid to return to the equipment and mix with the liquid to be separated, resulting in phase disturbance, an upper overflow chamber is provided. Specifically, if such misoperations occur, the clarified liquid is blocked from discharging and overflows the overflow trough of annular chamber 31a, entering the upper overflow chamber and being discharged through overflow outlet 34.

[0056] During the testing process, the feed liquid type, feed temperature, feed speed, etc. can be changed to simulate actual working conditions to test the performance of the feeding mechanism.

[0057] 2. Discharging mechanism performance test

[0058] The performance test of the discharge mechanism begins. At this time, the power source starts, and the main shaft 11 drives the entire drum 14 to rotate at high speed. The discharge liquid enters the discharge liquid collection chamber through the discharge liquid feed pipe, the discharge liquid inlet 21a, the first discharge liquid channel 21b, and the discharge liquid nozzle 23. Under the action of 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 with a certain centrifugal force and enters the vortex flow channel 22a of the discharge liquid collection ring 22, and then passes through the second discharge liquid channel 21c and the discharge liquid outlet 21d, and is finally discharged from the discharge liquid discharge pipe. For specific flow paths, refer to Figure 1 and Figure 2 As shown by the solid arrow.

[0059] During the testing process, the type of discharge liquid, discharge liquid temperature, rotation speed, etc. can be changed to simulate actual working conditions to test the performance of the discharge mechanism.

[0060] Of course, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, but also encompasses 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 in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that fall within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0062] The technology, shape, and structure not described in detail in the present invention are all well-known technologies.

Claims

1. A performance testing device for a water phase inlet and outlet mechanism, characterized in that: The invention comprises a main shaft (11) as a moving part coaxially arranged with each other and an outer cylinder (21) as a static part coaxially sleeved outside the main shaft (11); 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 a discharge liquid collection chamber is formed between the baffle (13) and the disc (12); 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 in the discharge liquid collection chamber, and a spiral flow channel (22a) is provided on the discharge liquid collection ring (22). The vortex direction of a) is opposite to the rotation direction of the main shaft (11); the discharge liquid enters through the discharge liquid inlet (21a) of the outer cylinder (21), and flows downward along the first discharge liquid channel (21b) arranged on the wall of the outer cylinder (21) to the bottom end of the outer cylinder (21), until it is sprayed out from the through hole preset at the bottom end of the outer cylinder (21) into the discharge liquid collection chamber, and enters the discharge liquid collection ring (22) through the vortex flow channel (22a), and then flows upward through the second discharge liquid channel (21c) preset on the wall of the outer cylinder (21) to the discharge liquid outlet (21d) above the outer cylinder (21); The device further comprises a drum (14) fixed on the main shaft (11), a disc (12) and a baffle (13) coaxially arranged in the drum cavity of the drum (14), thereby dividing the drum cavity of the drum (14) into an upper cavity and a lower cavity, wherein the upper cavity extends upward and covers the outside of the outer cylinder (21) and has a gap between the upper cavity and the outer cylinder (21), and the lower cavity extends downward and closes to the guide tube (35); an impeller (15) is coaxially arranged in the guide tube (35), and the main shaft (11) passes through the disc (12) and is coaxially fixed to the impeller (15); an outer shell (31) is arranged outside the drum (14), and a feed liquid inlet ( 32), the feed liquid enters the outer shell (31) through the feed liquid inlet (32), and is then pumped into the lower chamber through the liquid suction channel formed by the impeller (15) and the guide tube (35); a first drainage hole (12a) is arranged on the disc (12) to connect the upper chamber and the lower chamber, and a second drainage hole (14f) is arranged on the top of the upper chamber; the feed liquid then enters the upper chamber through the first drainage hole (12a) to simulate a separation state, and then enters the preset annular chamber (31a) in the outer shell (31) through the second drainage hole (14f), and is finally discharged from the feed liquid outlet (31b) at the annular chamber (31a) that penetrates the outer shell (31).

2. The performance testing device for a water phase inlet and outlet mechanism according to claim 1, characterized in that: The rotating drum (14) includes a shell (14a) formed by combining an upper straight section cylinder and a lower conical section cylinder. The disc (12) is installed at the junction of the upper straight section cylinder and the lower conical section cylinder. A pressure cover (14b) is fixed to the top of the shell (14a). The pressure cover (14b) presses the baffle (13) into the shell (14a) through the installation cylinder (14d) and the synchronous rotating ring (14c) in sequence; a partition (14e) is provided in the synchronous rotating ring (14c), and 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 drainage hole (12a), and the inner cavity is connected to the second drainage hole (14f) through the cylinder cavity of the installation cylinder (14d); a third drainage hole (14g) is provided through the partition (14e) to connect the outer cavity and the inner cavity.

3. The performance testing device for a water phase inlet and outlet mechanism according to claim 2, characterized in that: The first drainage hole (12a) is connected to the external cavity through a fourth drainage hole (14h) arranged on the bottom plate of the synchronous rotating ring (14c), and the cross-sectional areas of the first drainage hole (12a), the fourth drainage hole (14h), the third drainage hole (14g) and the second drainage hole (14f) are equal to each other or increase in sequence.

4. The performance testing device for a water phase inlet and outlet mechanism according to claim 3, characterized in that: The inner wall of the installation cylinder (14d), the inner wall of the inner cavity, the inner wall of the baffle plate (13) and the inner wall of the lower cavity are all protrudingly provided with a baffle plate (14i).

5. A water phase inlet and outlet mechanism performance testing device according to claim 1, 2, 3 or 4, characterized in that: A discharge liquid nozzle (23) communicating with the through hole is arranged at the bottom of the outer cylinder (21), and the spraying direction of the discharge liquid nozzle (23) points to the discharge liquid collecting chamber.

6. A water phase inlet and outlet mechanism performance testing device according to claim 1, 2, 3 or 4, characterized in that: A small shaft (12b) is coaxially protruded on the lower surface of the disc (12), and a coaxial threaded fit is formed between the small shaft (12b) and the shaft of the impeller (15).

7. A water phase inlet and outlet mechanism performance testing device according to claim 1, 2, 3 or 4, characterized in that: The discharge liquid collecting ring (22) is fastened to the bottom surface of the outer cylinder (21) via an axial screw (24).

8. A water phase inlet and outlet mechanism performance testing device according to claim 1, 2, 3 or 4, characterized in that: The outer shell (31) comprises an upper shell and a lower shell. An overflow trough constituting an annular cavity (31a) is provided at the upper shell. The feed liquid outlet (31b) is arranged at the bottom of the overflow trough. A gap exists between the overflow wall of the overflow trough and the outer wall of the outer cylinder (21).

9. The water phase inlet and outlet mechanism performance testing device according to claim 8, characterized in that: A separation ring (33) is provided at the lower shell body to divide the lower shell body into an overflow chamber located at the upper portion and a feed liquid collecting chamber located at the lower portion. The feed liquid collecting chamber is connected to the feed liquid inlet (32), and an overflow outlet (34) connected to external equipment is provided at the bottom of the overflow chamber. The guide tube (35) is coaxially fixed on the separation ring (33).

10. A water phase inlet and outlet mechanism performance testing device according to claim 1, 2, 3 or 4, characterized in that: The inner diameter of the guide tube (35) is larger than the outer diameter of the impeller (15), and the single-side gap between the guide tube (35) and the impeller (15) is controlled to be 1 mm to 10 mm.

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