Depth adjusting device for liquid pool of centrifugal machine
By setting a rotatable drain pipe in the large end cover of the centrifuge and fixing it with a threaded sleeve, the wind noise and journal leakage problems of the centrifuge liquid pool depth adjustment device during high-speed rotation is solved, and stable and efficient liquid pool depth adjustment and energy consumption reduction are achieved.
Patent Information
- Application Number
- CN202422284313.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing centrifuge liquid pool depth adjustment device generates wind noise and wind disturbance when rotating at high speed, affecting the separation effect, and has a risk of journal leakage, and has a high energy consumption.
A rotatable drain pipe device is designed. By setting a rotatable drain pipe in the large end cover of the centrifuge, the screw sleeve and the threads of the mounting holes are used to adjust the depth of the liquid pool, avoid overall disassembly and reduce wind noise and energy consumption.
The liquid pool depth adjustment without wind noise and journal leakage during high-speed rotation is achieved, which improves separation efficiency and equipment stability and reduces energy consumption.
Smart Images
Figure CN223221668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of centrifuges, in particular to a centrifuge liquid pool depth regulating device. Background Art
[0002] Centrifuges are widely used. Different materials have different separation requirements, and the desired liquid clarity and solid coherence are also different. This requires adjusting the liquid pool depth H of the centrifuge to meet different needs. When the separated liquid clarity is required to be high, the liquid pool depth must be deepened. When the separated solid dryness is required to be high, the liquid pool depth must be reduced. When the centrifuge discharge method is an overflow structure, a device for adjusting the liquid pool depth must be designed. There are usually the following methods:
[0003] The first method is to install a liquid level baffle at the liquid outlet opened on the large end cover of the centrifuge. The fixing hole of the liquid baffle 8 is a waist-shaped hole. The fixing screws can be loosened during adjustment. When the liquid pool depth needs to be deepened, the liquid level baffle is moved toward the center of the large end cover 1. When the liquid pool depth needs to be shallowed, the liquid level baffle is moved toward the outer circle of the large end cover. After adjusting to the appropriate position, tighten the fixing screws. (See Figure 1 The disadvantage of this structure is that the liquid is discharged radially from the liquid outlet under the action of centrifugal force. This type of liquid level baffle structure has the following disadvantages: it is not energy-efficient. The liquid overflowing from the liquid level baffle is ejected in the direction (radial) indicated by the arrow in the figure. The kinetic energy of the liquid is directly released, and the energy consumption of the centrifuge is high. It is unstable. The fixing screws of the liquid level baffle are prone to loosening. Under the action of strong centrifugal force, the liquid level baffle will move outward along the plane of the large end cover, causing the depth of the liquid pool of the centrifuge to change, affecting the separation effect. There is wind disturbance. The liquid level baffle and its fixing screws protrude from the plane of the large end cover. When the centrifuge runs at high speed, it will generate strong wind disturbance, produce noise, and increase the friction resistance between the centrifuge and the air, resulting in more energy consumption.
[0004] The second method is to make the baffle into a guide cover 9 with a circular arc cavity. When the depth of the liquid pool needs to be adjusted, the principle is the same as that of the baffle. The fixing hole of the guide cover 9 is a waist-shaped hole. Loosen the fastening screws, move it to the appropriate position, and then tighten the screws. (See Figure 2 This structure changes the direction of liquid discharge by creating an arc transition within the cavity of the shroud 9. However, there are certain drawbacks. The shroud 9 is a shell structure installed on the end face of the large end cover. There are generally 4 to 8 of them. When the centrifuge rotates at high speed, it generates a lot of wind noise, increasing the noise of the centrifuge operation. Moreover, the airflow creates a certain positive pressure within the shroud, leading to the risk of leakage in the centrifuge shaft neck. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a centrifuge liquid pool depth adjustment device with a simple structure. It is arranged inside the large end cover of the centrifuge and realizes the depth of the centrifuge liquid pool by rotation. It does not generate wind noise, reduces noise, and reduces the risk of leakage.
[0006] Specifically, the utility model discloses a centrifuge liquid pool depth adjustment device, including: a large end cover, a drainage pipe is provided on the inner side of the large end cover, and the drainage pipe is provided with a liquid intake port; a mounting hole is provided on the outer circumference of the large end cover, and the mounting hole is tangent to the rotation direction of the large end cover, and the drainage pipe can rotate along its own axis and is fixed in the mounting hole by a fixing component.
[0007] The benefit of adopting the above technical solution is that, by setting a rotatable discharge pipe, the position of the liquid outlet can be changed, the depth of the liquid pool inside the centrifuge can be adjusted, and it is suitable for centrifugation of different substances. At the same time, the structure is simple, the adjustment is convenient, and the entire centrifuge does not need to be disassembled. When the centrifuge rotates at high speed, no airflow and wind noise will be generated, and there will be no impact on the journal leakage and the operating noise of the centrifuge.
[0008] Furthermore, the fixing assembly includes a screw sleeve, which is provided with an external thread, a fixed step is provided in the mounting hole, a mounting portion abutting against the fixed step is provided on the outside of the drain pipe, and an internal thread cooperating with the screw sleeve is provided in the mounting hole.
[0009] The benefit of adopting the above technical solution is that the external thread of the screw sleeve cooperates with the internal thread of the mounting hole to press the drain pipe against the fixed step, thereby fixing the drain pipe firmly.
[0010] Furthermore, the liquid taking port is opened on the side of the liquid discharge pipe, and the liquid discharge pipe extends into the interior of the large end cover, one end is sealed, and the other end is provided with a liquid outlet.
[0011] The benefit of adopting the above technical solution is that the liquid collection port set on the side changes its setting during the rotation of the discharge pipe to adjust the depth of the liquid pool. If the depth of the liquid pool needs to be deepened, the liquid collection port is rotated toward the center of the large end cover. At this time, the liquid collection port is away from the inner wall of the drum, and the depth of the liquid pool increases. Conversely, it is adjusted towards the center away from the large end cover.
[0012] Furthermore, a receiving groove is provided on the inner side of the large end cover, and the drain pipe extends into the receiving groove.
[0013] The benefit of adopting the above technical solution is that the arrangement of the receiving tank is used to expose the liquid extraction port to discharge the liquid in the centrifuge, and at the same time plays a protective role, thereby extending the service life of the discharge pipe.
[0014] Furthermore, the drainage pipes are provided at multiple locations along the circumference of the large end cover.
[0015] The benefit of adopting the above technical solution is that the drainage pipes provided in multiple locations can ensure the drainage function of the centrifuge and ensure the processing efficiency of the centrifuge.
[0016] Furthermore, the side of the large end cover is connected to a rotating drum, a screw conveyor is provided in the rotating drum, and the large end cover is also provided with a feeding pipe.
[0017] The benefit of adopting the above technical solution is that the material is fed through the feed pipe, and the drum rotates to centrifuge the material, the solid phase and the liquid phase are separated, the liquid phase is discharged through the large end cover, the screw conveyor transfers the solid phase to the small end of the drum, and the solid phase residue is discharged from the small end of the drum.
[0018] Furthermore, a plurality of scale lines are provided on the end surface of the liquid discharge pipe along the diameter direction, and numbers are marked on the sides of the scale lines, and the numbers show the shortest distance from the center of the liquid intake port to the inner wall of the drum.
[0019] The advantage of adopting the above technical solution is that the setting of the scale line makes it easy to adjust the angle of the discharge pipe. It does not require the entire end cover to be disassembled, and it can be adjusted according to needs, which is convenient to adjust.
[0020] Furthermore, the liquid discharge direction of the liquid discharge pipe is opposite to the rotation direction of the large end cover.
[0021] The advantage of adopting the above technical solution is that the direction of liquid discharge is opposite to the direction of rotation of the drum, and the drum can be driven to rotate while liquid discharge occurs, thereby reducing the energy consumption of the centrifuge.
[0022] Furthermore, the liquid discharge pipe is provided with a side branch pipe, the side branch pipe is provided with a liquid inlet, and the liquid inlet is communicated with the liquid extraction port.
[0023] The benefit of adopting the above technical solution is that the provision of the side branch pipe extends the liquid inlet channel, and the liquid is introduced through the liquid inlet, thereby increasing the liquid layer adjustment range and being suitable for different processing conditions.
[0024] Furthermore, a plurality of strip grooves are provided in the screw sleeve, and the strip grooves are arranged along the axial direction of the screw sleeve.
[0025] The advantage of adopting the above technical solution is that the provision of the strip groove facilitates the assembly and disassembly of the screw sleeve, and multiple strip sleeves can clamp the locking piece, and the screw sleeve can be installed or removed by rotating the locking piece. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.
[0027] Figure 1 This is a schematic diagram of the existing technical structure Figure 1
[0028] Figure 2 This is a schematic diagram of the existing technical structure Figure 2
[0029] Figure 3 This is the overall structural diagram of the utility model centrifuge liquid pool depth adjustment device
[0030] Figure 4 Schematic diagram of the large end cover structure
[0031] Figure 5 This is a schematic diagram of the liquid pool depth at the liquid inlet position.
[0032] Figure 6 This is a schematic diagram of the liquid pool depth at the liquid inlet position 2
[0033] Figure 7 This is the end view of the liquid extraction tube
[0034] Figure 8 Schematic diagram of the side branch pipe structure
[0035] The reference numerals in the accompanying drawings are as follows:
[0036] Large end cover 1; mounting hole 11; receiving groove 12; drain pipe 2; liquid intake port 21; mounting portion 22; liquid outlet 23; scale line 24; screw sleeve 3; drum 4; screw conveyor 5; feed pipe 6; side branch pipe 7; liquid inlet 71; liquid baffle 8; guide cover 9. DETAILED DESCRIPTION
[0037] The present invention will be further described in detail below with reference to the accompanying drawings.
[0038] like Figure 3-4 As shown, the utility model discloses a centrifuge liquid pool depth adjustment device, comprising: a large end cover 1, a discharge pipe 2 is provided on the inner side of the large end cover 1, and the discharge pipe 2 is provided with a liquid intake port 21; a mounting hole 11 is provided on the outer circumference of the large end cover 1, and the mounting hole 11 is tangent to the rotation direction of the large end cover 1, and the discharge pipe 2 can rotate along its own axis and is fixed in the mounting hole 11 by a fixing component.
[0039] The benefit of adopting the above technical solution is that, by providing a rotatable discharge pipe 2, the position of the liquid outlet 21 can be changed, the depth of the liquid pool inside the centrifuge can be adjusted, and it is suitable for centrifugation of different substances. At the same time, the structure is simple, the adjustment is convenient, and the entire centrifuge does not need to be disassembled. When the centrifuge rotates at high speed, no airflow and wind noise will be generated, and there will be no impact on the journal leakage and the operating noise of the centrifuge.
[0040] In some embodiments, the fixing assembly includes a screw sleeve 3, which is provided with an external thread, a fixed step in the mounting hole 11, a mounting portion 22 that abuts the fixed step is provided on the outside of the drain pipe 2, and an internal thread that cooperates with the screw sleeve 3 is provided in the mounting hole 11. The interior of the screw sleeve is a through hole, and the liquid passing through the drain pipe 2 is discharged from the screw sleeve. The external thread of the screw sleeve 3 cooperates with the internal thread of the mounting hole 11, and the drain pipe 2 is pressed against the fixed step, so that the drain pipe 2 is fixed and tightened. When the depth of the liquid pool needs to be changed, the screw sleeve only needs to be removed from the side of the large end cover 1, rotated, and then installed and tightened. The screw sleeve 3 does not protrude above the outer circle of the large end cover 1.
[0041] Furthermore, a liquid intake port 21 is provided on the side of the drain pipe 2. The drain pipe 2 extends into the interior of the large end cover 1 and is sealed at one end so that the liquid can only be discharged through the liquid intake port 21. A liquid outlet 23 is provided at the other end. The drain pipe 2 is entirely provided in the mounting hole 11. The liquid enters the drain pipe 2 through the liquid intake port 21 and is discharged through the liquid outlet 23.
[0042] The benefit of adopting the above technical solution is that the setting of the liquid intake port 21 arranged on the side is changed during the rotation of the discharge pipe 2 to adjust the depth of the liquid pool. If the depth of the liquid pool needs to be deepened, the liquid intake port 21 is rotated toward the center of the large end cover 1. At this time, the liquid intake port 21 is away from the inner wall of the drum 4, and the depth of the liquid pool increases. Otherwise, it is adjusted toward the center away from the large end cover 1.
[0043] In some embodiments, a receiving groove 12 is provided on the inner side of the large end cover 1, and the discharge pipe 2 extends into the receiving groove 12. The liquid taking port 21 is located in the receiving groove 12 and rotates in the receiving groove 12, changing its position during the rotation. The setting of the receiving groove 12 is used to expose the liquid taking port 21 to discharge the liquid in the centrifuge, and also plays a protective role to extend the service life of the discharge pipe 2.
[0044] Furthermore, the drain pipes 2 are provided at multiple locations along the circumference of the large end cover 1 . The number of the drain pipes 2 can be 2-6, and the diameters can also be processed according to the working conditions of the centrifuge.
[0045] The benefit of adopting the above technical solution is that the drainage pipes 2 provided in multiple locations can ensure the drainage function of the centrifuge and ensure the processing efficiency of the centrifuge.
[0046] Furthermore, a drum 4 is connected to the side of the large end cover 1, a screw conveyor 5 is provided in the drum 4, and the large end cover 1 is also provided with a feed pipe 6. The drum 4 is connected to a drive motor for driving. The rotation of the drum 4 separates the solid phase and liquid phase entering the interior through centrifugal force, and the liquid phase is discharged through the large end cover 1. The screw conveyor 5 transfers the solid phase to the small end of the drum 4, and the solid phase residue is discharged from the small end of the drum 4. An outer shell is also provided on the outside of the drum 4 to separate the discharged liquid phase and solid phase to prevent pollution to the environment.
[0047] In some embodiments, the end surface of the discharge tube 2 is provided with a plurality of scale lines 24 along the diameter direction (e.g. Figure 7 As shown), the side of the scale line 24 is marked with a number, which shows the shortest distance from the center of the liquid taking port 21 to the inner wall of the drum 4. A marking point is set on the side wall of the large end cover 1 corresponding to the horizontal direction of the axis of the discharge pipe 2. When the corresponding scale line 24 is rotated to the marking point, the number displayed on the side of the scale line 24 at this time is the distance from the liquid taking port 21 to the inner wall of the drum 4, that is, the depth of the liquid pool. It can be adjusted as needed without removing the entire end cover, and the adjustment is convenient.
[0048] Furthermore, the liquid discharge direction of the discharge pipe 2 is opposite to the rotation direction of the large end cover 1. The discharge direction is opposite to the rotation direction of the drum 4, and the drum 4 can be driven to rotate while the liquid is discharged, thereby reducing the energy consumption of the centrifuge.
[0049] Furthermore, the drainage pipe 2 is provided with a side branch pipe 7 (such as Figure 8 As shown), the side branch pipe 7 is provided with a liquid inlet 71, the liquid inlet 71 is connected to the liquid taking port 21, the axis of the side straight pipe is perpendicular to the axis of the discharge pipe 2 or at a moving angle, and the discharge pipe 2 is rotated, and the side straight pipe rotates with the discharge pipe 2 and changes its position to realize a change in the depth of the liquid pool.
[0050] Furthermore, a plurality of strip grooves are provided in the screw sleeve 3, and the strip grooves are arranged axially along the screw sleeve 3. The arrangement of the strip grooves facilitates the assembly and disassembly of the screw sleeve 3. The plurality of strip sleeves can clamp the locking piece, and the screw sleeve 3 can be installed or removed by rotating the locking piece.
[0051] Working principle: First, feed the material through the feed pipe 6, and the drum 4 rotates to generate centrifugal force to separate the solid phase and the liquid phase. The separated liquid phase forms a liquid pool on the inner wall of the drum 4 and is discharged through the drain pipe 2. When the liquid needs to be clearer, the depth of the liquid pool is deepened. Rotate clockwise as shown in the figure, the liquid outlet 21 will rotate downward, and the liquid pool depth will be adjusted to H2. Figure 5 As shown, H2>H1, the depth of the liquid pool becomes deeper. When the solid needs to be drier, the depth of the liquid pool is reduced. Rotate counterclockwise as shown in the figure, the liquid outlet 21 will rotate upward, and the depth of the liquid pool will be adjusted to H3. Figure 6 H3 shown
[0052] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.
Claims
1. A centrifuge liquid pool depth adjustment device, characterized in that: include: A large end cover (1) is provided with a liquid discharge pipe (2) on the inner side of the large end cover, and the liquid discharge pipe (2) is provided with a liquid intake port (21); a mounting hole (11) is provided on the outer circumference of the large end cover (1), the mounting hole (11) is tangent to the rotation direction of the large end cover (1), and the liquid discharge pipe (2) can rotate along its own axis and is fixed in the mounting hole (11) by a fixing assembly.
2. The centrifuge liquid pool depth adjustment device according to claim 1, characterized in that: The fixing assembly comprises a screw sleeve (3), the screw sleeve (3) is provided with an external thread, a fixing step is provided in the mounting hole (11), a mounting portion (22) abutting against the fixing step is provided on the outside of the discharge pipe (2), and an internal thread cooperating with the screw sleeve (3) is provided in the mounting hole (11).
3. The centrifuge liquid pool depth adjustment device according to claim 1, characterized in that: The liquid inlet (21) is provided on the side of the liquid discharge pipe (2). The liquid discharge pipe (2) extends into the interior of the large end cover (1) with one end sealed and the other end provided with a liquid outlet (23).
4. The centrifuge liquid pool depth adjustment device according to claim 1, characterized in that: A receiving groove (12) is provided on the inner side of the large end cover (1), and the liquid discharge pipe (2) extends into the receiving groove (12).
5. The centrifuge liquid pool depth adjustment device according to claim 4, characterized in that: The drainage pipes (2) are arranged at multiple locations along the circumference of the large end cover (1).
6. The centrifuge liquid pool depth adjustment device according to claim 1, characterized in that: The side of the large end cover (1) is connected to a rotating drum (4), a screw conveyor (5) is provided in the rotating drum (4), and the large end cover (1) is also provided with a feeding pipe (6).
7. The centrifuge liquid pool depth adjustment device according to claim 6, characterized in that: The end surface of the liquid discharge pipe (2) is provided with a plurality of scale lines (24) along the diameter direction, and the side surfaces of the scale lines (24) are marked with numbers, and the numbers indicate the shortest distance from the center of the liquid intake port (21) to the inner wall of the drum (4).
8. The centrifuge liquid pool depth adjustment device according to claim 1, characterized in that: The liquid discharge direction of the liquid discharge pipe (2) is opposite to the rotation direction of the large end cover (1).
9. The centrifuge liquid pool depth adjustment device according to claim 1, characterized in that: The liquid discharge pipe (2) is provided with a side branch pipe (7), and the side branch pipe (7) is provided with a liquid inlet (71), and the liquid inlet (71) is communicated with the liquid extraction port (21).
10. The centrifuge liquid pool depth adjustment device according to claim 2, characterized in that: A plurality of strip grooves are provided in the screw sleeve (3), and the strip grooves are arranged axially along the screw sleeve (3).