Overflow structure for a vacuum unit

Abstract

The utility model discloses a overflow port structure for vacuum unit relates to vacuum unit technical field, including vacuum unit body, overflow port body and buffer board, install overflow port body on the vacuum unit body, the inside installation of overflow port body is limited ring, and the left side of limited ring is provided with buffer board, is equipped with honeycomb groove on the buffer board, the left side mounting of buffer board has screw rod, and the filter board is sleeved on the screw rod. This overflow port structure for vacuum unit, and buffer board disperses high -speed liquid through a plurality of honeycomb grooves, and the flow rate is slowed down to avoid splashing, prevents the periphery equipment corrosion pollution, avoids the liquid level sudden drop influence vacuum unit body inside pressure stability simultaneously, and the filter board can intercept the impurity in the liquid, prevents the impurity and enters the subsequent collection container, reduces the subsequent processing difficulty.

Description

Technical Field

[0001] This utility model relates to the field of vacuum unit technology, specifically to an overflow port structure for vacuum units. Background Technology

[0002] Vacuum units, as core equipment for obtaining and maintaining a vacuum environment, are widely used in chemical distillation, food freeze-drying, electronic coating, and pharmaceutical purification through the coordinated operation of vacuum pumps, vacuum tanks, pipelines, and control components. Their operational stability directly affects the continuity of production processes and product quality. Currently, most mainstream vacuum units adopt a combined architecture of "vacuum pump + gas-liquid separator + vacuum storage tank." During operation, the vacuum pump draws in the medium to be processed, the gas-liquid separator separates the liquid components from the medium, and the vacuum storage tank buffers and stabilizes the pressure, ultimately achieving vacuum control in the target area.

[0003] When the liquid accumulation in the vacuum unit's gas-liquid separator or vacuum storage tank exceeds the normal drainage capacity, or when the drainage structure is stuck or malfunctioning and cannot drain the liquid in time, the overflow port can serve as an emergency channel to quickly drain the excess liquid, preventing it from overflowing into the vacuum pump or internal pipelines of the unit, and preventing core component failures such as impeller damage or seal failure.

[0004] For example, Chinese utility model patent application number 201721895887.0 discloses a graphite cooling coil type vacuum unit, which uses graphite cooling coils. Graphite heat exchangers have good corrosion resistance, are not prone to scaling on the heat transfer surface, and have good heat transfer performance, thus giving the cooling coils good heat transfer effect and longer service life, and making them widely applicable. However, this device still has certain shortcomings; When overflowing through the overflow port, it is not convenient to buffer and filter the fluid. The high-speed flowing liquid is prone to splashing due to impact, which may not only cause corrosion and pollution to surrounding pipes and equipment, but may also cause impurities in the liquid to directly enter the collection container, increasing the difficulty of subsequent treatment. In addition, the lack of buffer design will cause the liquid level to drop suddenly during the overflow process, which may temporarily affect the internal pressure stability of the vacuum unit.

[0005] Therefore, we proposed an overflow port structure for vacuum units to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide an overflow port structure for vacuum units, in order to solve the problems mentioned in the background art, such as the inconvenience of buffering and filtering the fluid when overflowing through the overflow port, the high-speed flowing liquid being prone to splashing due to impact, which may not only cause corrosion and pollution to surrounding pipes and equipment, but may also cause impurities entrained in the liquid to directly enter the collection container, increasing the difficulty of subsequent treatment; in addition, the lack of a buffer design will cause the liquid level to drop suddenly during the overflow process, which may temporarily affect the stability of the internal pressure of the vacuum unit.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an overflow port structure for a vacuum unit, comprising a vacuum unit body, an overflow port body, and a buffer plate, wherein the overflow port body is installed on the vacuum unit body, a limit ring is installed inside the overflow port body, and a buffer plate is provided on the left side of the limit ring, and a honeycomb groove is formed on the buffer plate. A threaded rod is installed on the left side of the buffer plate, and a filter plate is sleeved on the threaded rod.

[0008] Preferably, a sealing groove is provided on the right side of the buffer plate, and a sealing ring is installed on the left side of the limiting ring, with the sealing ring engaging with the sealing groove on the buffer plate.

[0009] The above structural design can fill the gap between the buffer plate and the limiting ring, and initially position the buffer plate. At the same time, the cooperation between the sealing ring and the sealing groove further fixes the position of the buffer plate, preventing the buffer plate from shifting due to liquid impact and ensuring the stability of the buffering effect.

[0010] Preferably, the buffer plate has multiple honeycomb grooves, the buffer plate abuts against the inner wall of the overflow port body, and an alignment line is provided on the left side surface of the overflow port body.

[0011] The above structural design can disperse high-speed flowing liquid into multiple low-speed streams, which slow down the flow rate through the honeycomb channel, effectively reducing the risk of splashing caused by liquid impact. The buffer plate abuts against the inner wall of the overflow port to ensure that the liquid must be buffered by the honeycomb channel before flowing out. The alignment line on the left side of the overflow port facilitates quick positioning of the buffer plate and filter plate during installation, ensuring accurate installation of components and avoiding the overflow effect due to misalignment.

[0012] Preferably, the filter plate has a through hole, and the center line of the through hole coincides with the center line of the threaded rod.

[0013] With the above structural design, when installing the filter plate, the through hole can be aligned with the threaded rod to achieve quick positioning of the filter plate.

[0014] Preferably, the threaded rod is equipped with an abutment plate and a limiting nut, the right side of the filter plate abuts against the abutment plate, and the limiting nut abuts against the left side of the filter plate.

[0015] With the above structural design, the abutment plate on the threaded rod abuts against the filter plate from the right side, and the limit nut on the left side is tightened to fix the filter plate from the left side. The double fixation of "abutment + nut locking" prevents the filter plate from loosening or shifting due to liquid impact. When the filter plate needs to be replaced, the limit nut is unscrewed and the filter plate can be removed along the threaded rod. The operation is convenient and it is easy to clean or replace the clogged filter plate regularly.

[0016] Preferably, connecting blocks are installed on both the upper and lower left sides of the filter plate, and positioning bolts are installed on each connecting block. Positioning grooves are opened on both the upper and lower sides of the inner wall of the overflow port, and the center line of the positioning bolt coincides with the center line of the positioning groove.

[0017] With the above structural design, the positioning bolts are screwed into the positioning groove during installation to further fix the filter plate and prevent it from rotating due to vibration or liquid impact during overflow. The double fixing structure ensures that the filter plate remains stable at all times, guaranteeing the impurity interception effect, and at the same time, it facilitates precise alignment of the filter plate position during installation.

[0018] Preferably, an anti-slip rod is installed on the left side of each threaded rod, and the anti-slip rod is fixedly connected to the threaded rod.

[0019] With the above structural design, the anti-slip rod is easy for workers to hold. When it is necessary to maintain the buffer plate or filter plate, holding the anti-slip rod can easily pull the buffer plate, threaded rod and filter plate out of the overflow port body as a whole. After pulling it out, rotate the limit nut to disengage it from the threaded rod, and the filter plate can be quickly disassembled for cleaning or replacement without the need for additional tools, thus improving the convenience of maintenance.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the overflow port structure for the vacuum unit: The dual function of "buffering + filtering" ensures overflow safety and unit stability. The buffer plate disperses the high-speed liquid accumulation through multiple honeycomb cells, slowing down the flow rate to avoid splashing and prevent corrosion and contamination of surrounding equipment. It also prevents a sudden drop in liquid level from affecting the internal pressure stability of the vacuum unit. The filter plate can intercept impurities in the liquid accumulation, preventing them from entering the subsequent collection container and reducing the difficulty of subsequent processing. 2. The components are easy to install and maintain, reducing the difficulty of operation. The filter plate is connected to the threaded rod through the through hole, and together with the abutment plate, limit nut, positioning bolt and positioning groove, it can be quickly positioned and double fixed, and the installation is accurate and stable. During maintenance, the buffer plate and filter plate can be easily pulled out by holding the anti-slip bar on the left side of the threaded rod. The filter plate can be disassembled for cleaning or replacement by unscrewing the limit nut. No complicated tools are required, which greatly improves maintenance efficiency and reduces the difficulty of daily operation. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the overflow port structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the overflow port of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram showing the position and structure of the buffer plate and filter plate of this utility model; Figure 6 This is a schematic diagram of the structure of the buffer plate and filter plate of this utility model during disassembly.

[0022] In the diagram: 1. Vacuum unit body; 2. Overflow port body; 3. Limiting ring; 4. Buffer plate; 5. Sealing groove; 6. Sealing ring; 7. Honeycomb groove; 8. Threaded rod; 9. Filter plate; 10. Through hole; 11. Abutment plate; 12. Limiting nut; 13. Connecting block; 14. Positioning bolt; 15. Positioning groove; 16. Anti-slip rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6This utility model provides a technical solution: an overflow port structure for a vacuum unit, including a vacuum unit body 1, an overflow port body 2, a limiting ring 3, a buffer plate 4, a sealing groove 5, a sealing ring 6, a honeycomb groove 7, a threaded rod 8, a filter plate 9, a through hole 10, an abutment plate 11, a limiting nut 12, a connecting block 13, a positioning bolt 14, a positioning groove 15, and an anti-slip rod 16. The overflow port body 2 is installed on the vacuum unit body 1. A limiting ring 3 is installed inside the overflow port body 2. A buffer plate 4 is provided on the left side of the limiting ring 3, and a sealing groove 5 is opened on the right side of the buffer plate 4. A sealing ring 6 is installed on the left side of the limiting ring 3. The sealing ring 6 engages with the sealing groove 5 on the buffer plate 4, filling the gap between the buffer plate 4 and the limiting ring 3, and initially positioning the buffer plate 4. The sealing ring 6 and the sealing groove 5 further fix the position of the buffer plate 4, preventing the buffer plate 4 from shifting due to liquid impact and ensuring the stability of the buffering effect. The buffer plate 4 is provided with honeycomb grooves 7, and there are multiple honeycomb grooves 7 on the buffer plate 4. The buffer plate 4 abuts against the inner wall of the overflow port body 2. The left side surface of the overflow port body 2 is provided with an alignment line, which can disperse the high-speed flowing liquid into multiple low-speed flows. The flow rate is slowed down through the channels of the honeycomb grooves 7, effectively reducing the risk of splashing caused by liquid impact. The buffer plate 4 abuts against the inner wall of the overflow port body 2 to ensure that the liquid must be buffered by the honeycomb grooves 7 before flowing out. The alignment line on the left side of the overflow port body 2 facilitates quick positioning of the buffer plate 4 and filter plate 9 during installation, ensuring accurate installation of components and avoiding the overflow effect due to misalignment.

[0025] A threaded rod 8 is installed on the left side of the buffer plate 4, and a filter plate 9 is sleeved on the threaded rod 8. The filter plate 9 has a through hole 10, the center line of which coincides with the center line of the threaded rod 8. When installing the filter plate 9, the through hole 10 can be aligned with the threaded rod 8 for quick positioning of the filter plate 9. An abutment plate 11 and a limiting nut 12 are installed on the threaded rod 8. The right side of the filter plate 9 abuts against the abutment plate 11, and the limiting nut 12 abuts against the left side of the filter plate 9. The abutment plate 11 on the threaded rod 8 abuts against the filter plate 9 from the right side, and the limiting nut 12 on the left side is tightened to fix the filter plate 9 from the left side. The double fixing of "abutment + nut locking" prevents the filter plate 9 from loosening or shifting due to liquid impact. When the filter plate 9 needs to be replaced, the limiting nut 12 is unscrewed, and the filter plate 9 can be removed along the threaded rod 8. The operation is convenient and facilitates regular cleaning or replacement of the clogged filter plate 9. Connecting blocks 13 are installed on both the upper and lower sides of the left side of the filter plate 9. Positioning bolts 14 are installed on each of the 13. Positioning grooves 15 are opened on the upper and lower sides of the inner wall of the overflow port body 2. The center line of the positioning bolt 14 coincides with the center line of the positioning groove 15. During installation, the positioning bolt 14 is screwed into the positioning groove 15 to further fix the filter plate 9 and prevent the filter plate 9 from rotating due to vibration or liquid impact during the overflow process. The double fixing structure ensures that the filter plate 9 always remains stable, ensuring the impurity interception effect. At the same time, it is easy to accurately align the position of the filter plate 9 during installation. Anti-slip rods 16 are installed on the left side of the threaded rod 8. The anti-slip rods 16 are fixedly connected to the threaded rod 8. The anti-slip rods 16 are easy for the staff to hold. When it is necessary to maintain the buffer plate 4 or the filter plate 9, the buffer plate 4, the threaded rod 8 and the filter plate 9 can be easily pulled out of the overflow port body 2 by holding the anti-slip rods 16. After pulling out, the limit nut 12 is rotated to disengage it from the threaded rod 8, and the filter plate 9 can be quickly disassembled for cleaning or replacement without the need for additional tools, which improves the convenience of maintenance.

[0026] Working principle: When using the overflow port structure for vacuum units, firstly, when there is excessive liquid accumulation in the vacuum unit body 1, the liquid is discharged through the overflow port body 2 and first contacts the buffer plate 4 inside the overflow port body 2; the multiple honeycomb grooves 7 on the buffer plate 4 disperse the high-speed liquid into a low-speed flow to avoid splashing. At the same time, the buffer plate 4 abuts against the inner wall of the overflow port body 2 to ensure that the liquid is buffered before flowing out.

[0027] The buffered liquid flows to the filter plate 9 on the left. After the filter plate 9 intercepts impurities in the liquid, the clean liquid is discharged.

[0028] During maintenance, remove the positioning bolt 14, grasp the anti-slip bar 16 on the left side of the threaded rod 8, and pull the buffer plate 4, threaded rod 8, and filter plate 9 out of the overflow port body 2 as a whole. Unscrew the limit nut 12 to remove the filter plate 9 for cleaning or replacement. During installation, refer to the alignment line on the left side of the overflow port body 2 and reverse the operation to reset, thus completing a series of tasks. Content not described in detail in this manual is prior art known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An overflow port structure for a vacuum unit, comprising a vacuum unit body (1), an overflow port body (2), and a buffer plate (4), wherein the overflow port body (2) is installed on the vacuum unit body (1), characterized in that: The overflow port body (2) is equipped with a limiting ring (3) inside, and a buffer plate (4) is provided on the left side of the limiting ring (3), and a honeycomb groove (7) is provided on the buffer plate (4). A threaded rod (8) is installed on the left side of the buffer plate (4), and a filter plate (9) is sleeved on the threaded rod (8).

2. The overflow port structure for a vacuum unit according to claim 1, characterized in that: A sealing groove (5) is provided on the right side of the buffer plate (4), and a sealing ring (6) is installed on the left side of the limiting ring (3). The sealing ring (6) is engaged with the sealing groove (5) on the buffer plate (4).

3. The overflow port structure for a vacuum unit according to claim 2, characterized in that: The buffer plate (4) has multiple honeycomb grooves (7), the buffer plate (4) abuts against the inner wall of the overflow port body (2), and the left side surface of the overflow port body (2) is provided with an alignment line.

4. The overflow port structure for a vacuum unit according to claim 1, characterized in that: The filter plate (9) has a through hole (10), and the center line of the through hole (10) coincides with the center line of the threaded rod (8).

5. The overflow port structure for a vacuum unit according to claim 4, characterized in that: The threaded rod (8) is equipped with an abutment plate (11) and a limiting nut (12). The right side of the filter plate (9) abuts against the abutment plate (11), and the limiting nut (12) abuts against the left side of the filter plate (9).

6. The overflow port structure for a vacuum unit according to claim 4, characterized in that: The filter plate (9) has connecting blocks (13) installed on both the upper and lower sides of the left side, and positioning bolts (14) are installed on the connecting blocks (13). The inner walls of the overflow port body (2) have positioning grooves (15) on both the upper and lower sides. The center line of the positioning bolt (14) coincides with the center line of the positioning groove (15).

7. The overflow port structure for a vacuum unit according to claim 1, characterized in that: Anti-slip rods (16) are installed on the left side of each threaded rod (8), and the anti-slip rods (16) are fixedly connected to the threaded rods (8).

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