Mechanical seal flushing water recycling system of PSA (Pressure Swing Adsorption) water ring vacuum pump

Abstract

The invention relates to the technical field of pipeline wastewater recycling, in particular to a PSA water ring vacuum pump mechanical seal flushing water recycling system which comprises a hollow treatment box, a liquid discharging pipe is installed at the top of the treatment box in a penetrating mode, a protruding structure is arranged on the side wall, away from the liquid discharging pipe, of the treatment box, and a liquid inlet pipe is installed on the protruding structure in a penetrating mode. An arc-shaped plate and a filtering mechanism matched with the arc-shaped plate are installed in the treatment box, the arc-shaped plate can efficiently block inflow flushing water and guide water flow to change the movement track, then stable backflow is formed, flushing treatment is actively conducted on the filtering frame through the backflow, and by means of the reverse impact force of the water flow, the filtering effect is improved. The dirt attached to the surface of the filter frame is effectively promoted to smoothly fall off, and the fallen dirt can be contained in the action range of the conveying assembly in time and is rapidly guided out of the treatment box through the directional conveying function of the conveying assembly, so that the purification treatment effect of flushing water is remarkably improved, and it is ensured that the filter frame continuously keeps good filtering performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline wastewater recycling, in particular to a PSA water ring vacuum pump mechanical seal flushing water recycling system. BACKGROUND

[0002] In modern industrial production processes, PSA water ring vacuum pumps, as an important equipment, are widely used in various fields, including chemical industry, pharmaceutical industry, food processing and electronic manufacturing, etc. However, the working environment of the mechanical seal (hereinafter referred to as the mechanical seal) of the vacuum pump is extremely harsh during operation, and needs to withstand high temperature and corrosion by various corrosive gases or liquids.

[0003] In order to improve the service life of the mechanical seal and the operating efficiency of the pump, and ensure the sealing performance of the connection between the pump and the pipeline, flushing water is usually used to cool and protect the mechanical seal. The traditional flushing water is directly discharged into the environment after use, which not only wastes water resources, but also causes adverse effects on the environment.

[0004] For example, a BDO device mechanical seal flushing water recycling system with publication number CN212212399U has significant beneficial effects. First, by recycling and recycling the mechanical seal flushing water, it greatly reduces the consumption of fresh water resources, reduces the water cost in production, and reduces wastewater discharge, which is in line with the production concept of energy saving and environmental protection. Secondly, the system is equipped with first and second delivery pumps, which can be used as backup to each other, effectively avoiding system downtime caused by single pump failure, ensuring the continuity of mechanical seal flushing water supply, and ensuring the safe and stable operation of the mechanical seal of the BDO device related equipment, and improving the operation reliability of the whole system.

[0005] During long-term operation, the surface of the mechanical seal will inevitably accumulate a layer of dirt due to medium residues, wear debris and other factors. Although the above-mentioned prior art can realize the recycling of the flushing water of the mechanical seal of the vacuum pump, there are still obvious deficiencies in actual application: when the flushing water cleans the surface of the mechanical seal, the attached dirt will be washed off and mixed into the flushing water, and the prior art does not set an effective removal mechanism for the impurities mixed in the water.

[0006] This results in a large amount of impurities remaining in the recycled flushing water, which not only reduces the cleaning ability of subsequent flushing, but also may cause secondary wear to the mechanical seal during the recycling process, even block the pipeline or equipment components, and seriously affect the recycling efficiency and actual effect of the flushing water.

[0007] Based on this, in the light of the above-mentioned points, the existing technology for recycling the flushing water of the mechanical seal still has room for improvement. SUMMARY

[0008] In order to solve the above technical problems, the application provides a PSA water ring vacuum pump seal flushing water recycling system, which adopts the following technical scheme: a PSA water ring vacuum pump seal flushing water recycling system, comprising a hollow treatment box, a liquid discharge pipe is installed through the top of the treatment box, the side wall of the treatment box away from the liquid discharge pipe is provided as a convex structure, a liquid inlet pipe is installed through the convex structure, an arc-shaped plate and a filtering mechanism matched with the arc-shaped plate are installed inside the treatment box, wherein the filtering mechanism comprises: A filter frame is installed inside the treatment box and located between the liquid inlet pipe and the arc-shaped plate.

[0009] A conveying assembly is installed inside the treatment box and located between the filter frame and the liquid inlet pipe, which conveys the dirt filtered by the filter frame outward.

[0010] A cleaning assembly is installed inside the treatment box and located between the liquid discharge pipe and the filter frame, which cleans the dirt on the filter frame.

[0011] Preferably, the conveying assembly comprises a through groove opened on one side of the top of the treatment box, support frames are symmetrically installed on one side of the top of the treatment box and located at the through groove along the width direction of the treatment box, rotating shafts are symmetrically provided on the vertical plane of the through groove along the height direction of the treatment box, and the lower rotating shaft is rotatably installed on the inner wall of the treatment box through a bearing.

[0012] Preferably, the upper rotating shaft is located between the two support frames, the ends of the upper rotating shaft are installed on the corresponding side support frames through bearings, pulleys are symmetrically installed on the rotating shaft along the length direction of the rotating shaft, transmission belts are commonly installed between the upper and lower adjacent pulleys, and a plurality of conveying frames are uniformly provided on the transmission belts along the length direction of the transmission belts.

[0013] Preferably, the two transmission belts are provided with connecting blocks matched with the conveying frames, the conveying frames are installed between the corresponding two connecting blocks, the conveying frames are provided with screen meshes at the bottom, and unclogging assemblies matched with the screen meshes are commonly installed between the conveying frames and the treatment box.

[0014] Preferably, the unclogging assembly comprises an unclogging plate reciprocally moving along the height direction of the conveying frame and arranged at the bottom of the conveying frame, a plurality of unclogging protrusions matched with the screen meshes are uniformly provided on the unclogging plate, fixed protrusions are provided on the conveying frame and the unclogging plate, extension spring rods are installed on the corresponding fixed protrusions of the conveying frame, and the extension ends of the extension spring rods are installed on the fixed protrusions of the corresponding unclogging plate.

[0015] Preferably, the fixed frame is symmetrically arranged at both ends of the conveying frame along the width direction thereof, a reversing shaft is rotatably arranged between the fixed frames corresponding to the fixed frame through bearings, the adjusting block moving up and down is slidingly arranged between the fixed frames and away from one side of the corresponding conveying frame, the adjusting rope is arranged on the reversing shaft, one end of the adjusting rope is arranged on the corresponding adjusting block, the end of the adjusting rope away from the corresponding adjusting block is arranged on the corresponding dredging plate, the linkage frame is arranged on the side of the adjusting block away from the adjusting rope, and the rubber protrusion corresponding to the linkage frame is arranged on the inner side wall of the treatment box.

[0016] Preferably, the limiting rod is symmetrically arranged inside the treatment box along the width direction thereof and cooperates with the conveying frame close to the filter frame, the connecting protrusion is arranged on the limiting rod, the fixed rack is commonly arranged on the connecting protrusion, and the fixed rack is arranged on the inner wall of the treatment box.

[0017] Preferably, the end of the limiting rod close to the bottom of the treatment box is provided with a guide protrusion for guiding the conveying frame.

[0018] Preferably, the cleaning assembly comprises a plurality of reciprocating plates uniformly distributed along the height direction of the filter frame, the cleaning brush is arranged on the side of the reciprocating plate close to the filter frame, the lifting rod is slidingly arranged on the high side of the top of the treatment box along the height direction thereof, and the reciprocating plate is arranged on the lifting rod.

[0019] Preferably, the Z-shaped linkage rod is arranged on the top of the lifting rod, the telescopic elastic rod is arranged on the high side of the top of the treatment box, the telescopic end of the telescopic elastic rod is arranged on the long horizontal section of the linkage rod, the rotating shaft penetrating through the corresponding support frame is arranged on the corresponding support frame, and the rotating shaft penetrating through the circumferential surface of the one end of the support frame is provided with the rotating rack cooperating with the short horizontal section of the linkage rod.

[0020] In summary, the present application has at least one of the following beneficial technical effects: 1. The arc-shaped plate can effectively block the flowing flushing water and guide the water flow to change the motion track, thereby forming a stable backflow, and then actively washing the filter frame through the backflow, and the reverse impact force of the water flow can effectively promote the dirt attached to the surface of the filter frame to fall off, and the dirt after falling off can be timely brought into the action range of the conveying assembly and quickly guided out of the treatment box through the directional conveying function of the conveying assembly, thereby significantly improving the purification treatment effect of the flushing water and ensuring that the filter frame can continuously maintain good filtering performance.

[0021] 2. In the key stage of moving the conveying frame, the dredging assembly is designed to be started simultaneously to actively dredge the screen, thereby timely removing the dirt and impurities that may block the screen mesh, thereby effectively preventing the water flow from being unable to smoothly flow out due to the blockage of the screen mesh, so as to prevent the collected dirt in the conveying frame from being easily spilled out with the water flow.

[0022] In addition, by ensuring the smoothness of the leakage, not only the above-mentioned dirt overflow problem is avoided, but more importantly, the dirt accumulated inside the conveying frame can be smoothly and completely conveyed to the outside of the processing box along with the conveying frame for centralized processing, fundamentally avoiding the dirt retention in the system or the secondary pollution to the flushing water when the dirt is discharged with the water flow, providing reliable protection for maintaining the high recovery quality of the flushing water.

[0023] 3. The cleaning assembly designed in the present application can comprehensively cover each area of the filter frame, penetrate into the gaps and dead angles of the filter frame, and thoroughly remove the dirt attached thereto. Meanwhile, the cleaning assembly forms efficient cooperation with the flushing water reflux, that is, when the cleaning assembly cleans the filter frame, the flushing water will timely reflux, and the water flow can flush away the loosened dirt in the cleaning process and take it away from the surface of the filter frame. Through the double action of cleaning and flushing, the cleaning effect on the filter frame is significantly enhanced, further ensuring that the dirt on the filter frame can be completely removed, so as to ensure that the filtering performance of the filter frame is not affected, and the stable and efficient operation of the entire system is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0025] Figure 2 is a schematic diagram of the internal three-dimensional structure of the present application.

[0026] Figure 3 is a schematic diagram of the three-dimensional installation structure between the support frame, rotating shaft, belt wheel and transmission belt of the present application.

[0027] Figure 4 is a partial enlarged view of A of the present application. Figure 3

[0028] Figure 5 is a schematic diagram of the three-dimensional installation structure between the conveying frame, linkage frame and rubber protrusion of the present application Figure 6 is a partial enlarged view of B of the present application. Figure 5

[0029] Figure 7 is a schematic diagram of the distribution three-dimensional structure of the conveying frame inside the processing box of the present application.

[0030] Figure 8 is a partial enlarged view of C of the present application. Figure 7

[0031] Figure 9 is a schematic diagram of the installation structure of the cleaning assembly inside the processing box of the present application.

[0032] Figure 10 is a schematic diagram of the installation structure of the cleaning assembly of the present application. ​​​

[0033] Explanation of reference signs: 1, treatment box; 11, limiting rod; 12, fixed rack; 13, guide protrusion; 2, liquid discharge pipe; 3, liquid inlet pipe; 4, arc-shaped plate; 5, filtering mechanism; 51, filter frame; 52, conveying assembly; 521, support frame; 522, rotating shaft; 523, pulley; 524, transmission belt; 525, conveying frame; 526, connecting block; 527, mesh screen; 53, cleaning assembly; 531, reciprocating plate; 532, cleaning brush; 533, lifting rod; 534, linkage rod; 535, telescopic elastic rod; 536, rotating frame; 54, dredging assembly; 541, dredging plate; 542, dredging protrusion; 543, telescopic spring rod; 544, fixed frame; 545, reversing shaft; 546, adjusting block; 547, adjusting rope; 548, linkage frame; 549, rubber protrusion. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1 to 10 The application is further described in detail.

[0035] The embodiment of the application discloses a PSA water ring vacuum pump seal flushing water recycling system, which can utilize the flushing water backflow impact force to make the dirt fall off and then transport the fallen dirt outward, avoiding the possibility of secondary pollution of the flushing water by the fallen dirt.

[0036] Embodiment one: Reference Figure 1 and Figure 2 A PSA water ring vacuum pump seal flushing water recycling system, comprising a hollow treatment box 1, a liquid discharge pipe 2 is installed through the top of the treatment box 1, the side wall of the treatment box 1 away from the liquid discharge pipe 2 is provided as a protruding structure, a liquid inlet pipe 3 is installed through the protruding structure, an arc-shaped plate 4 and a filtering mechanism 5 matched with the arc-shaped plate 4 are installed inside the treatment box 1, wherein the filtering mechanism 5 comprises: A filter frame 51 is installed inside the treatment box 1 and located between the liquid inlet pipe 3 and the arc-shaped plate 4.

[0037] A conveying assembly 52 is installed inside the treatment box 1 and located between the filter frame 51 and the liquid inlet pipe 3, and the conveying assembly 52 transports the dirt filtered by the filter frame 51 outward.

[0038] A cleaning assembly 53 is installed inside the treatment box 1 and located between the liquid discharge pipe 2 and the filter frame 51, and the cleaning assembly 53 cleans the dirt on the filter frame 51.

[0039] The arc-shaped plate 4 can form an efficient barrier to the inflowing washing water, guide the water flow to change the motion track, and further form a stable backflow, thereby actively washing the filter frame 51 through the backflow, and effectively promote the dirt attached to the surface of the filter frame 51 to fall off smoothly by means of the reverse impact force of the water flow. The dirt after falling off can be timely brought into the action range of the conveying assembly 52 and be quickly guided out of the treatment box 1 through the directional conveying function of the conveying assembly 52, so as to significantly improve the purification treatment effect of the washing water and ensure that the filter frame 51 continuously maintains good filtering performance.

[0040] It should be noted that the convex structure can limit the flow of washing water into the treatment box 1, that is, when the water flow passes through this structure, the flow area will be correspondingly reduced.

[0041] According to the basic principle of fluid mechanics, under the condition of constant flow, the flow rate of water flow is inversely proportional to the flow area, so the reduction of the flow area will directly promote the flow rate of the washing water to increase significantly. The washing water with the increased flow rate can impact the arc-shaped plate 4 with greater impact force. When the high-speed washing water contacts the arc-shaped plate 4, a backflow is formed due to the blocking effect of the arc-shaped plate 4.

[0042] Since the initial water flow speed impacting the arc-shaped plate 4 is large, the backflow generated thereby also maintains a high flow rate. The high-speed backflow can more effectively act on the filter frame 51 to more thoroughly and effectively wash the impurities attached to the filter frame 51, thereby significantly improving the overall washing effect.

[0043] The filter frame 51 is in a back-shaped structure, and a filter screen is arranged on the inner side wall of the filter frame 51. Since the filter screen is a known common sense, in order to facilitate the beauty of the subsequent drawings, it is not shown in the figure. In specific work, the washing water is pumped into the treatment box 1 through the liquid inlet pipe 3. After the washing water fills the convex structure inside the treatment box 1, a water flow is formed. At this time, the water flow flows to the filter frame 51 at a certain speed. The filter frame 51 blocks the dirt inside the water flow during the water flow, so that the dirt cannot pass through the filter frame 51. The water flow continues to move and impacts the arc-shaped plate 4.

[0044] After the water flow collides with the arc-shaped plate 4, a backflow is formed. The water flow of the backflow makes the dirt on the surface of the filter frame 51 fall off smoothly by means of the reverse impact force, and further actively washes the filter frame 51 by means of the washing water backflow.

[0045] Referring to Figure 3 and Figure 4In order to avoid the secondary pollution of the flushed water by the falling dirt, the conveying assembly 52 can convey the falling dirt outside the treatment box 1, and specifically, the conveying assembly 52 comprises a through groove formed on one side of the top of the treatment box 1, the support frames 521 are symmetrically installed on one side of the top of the treatment box 1 and located at the through groove along the width direction of the treatment box 1, the rotating shafts 522 are symmetrically arranged on the vertical plane of the through groove along the height direction of the treatment box 1, and the lower rotating shaft 522 is rotatably installed on the inner wall of the treatment box 1 through a bearing.

[0046] The upper rotating shaft 522 is located between the two support frames 521, and the upper rotating shaft 522 is rotatably installed on the corresponding support frame 521 at both ends through a bearing, the pulleys 523 are symmetrically installed on the rotating shaft 522 along the length direction of the rotating shaft 522, the transmission belts 524 are jointly installed between the upper and lower adjacent pulleys 523, and the transmission belts 524 are uniformly provided with a plurality of conveying frames 525 along the length direction of the transmission belts 524.

[0047] The two transmission belts 524 are provided with the connecting blocks 526 matched with the conveying frames 525, the conveying frames 525 are installed between the corresponding two connecting blocks 526, the mesh screen 527 is installed at the bottom of the conveying frame 525, and the conveying frame 525 and the treatment box 1 are jointly provided with the dredging assembly 54 matched with the mesh screen 527.

[0048] When the transmission belt 524 drives the conveying frame 525 to move close to the filter frame 51, the side of the conveying frame 525 close to the filter frame 51 is provided with an opening, so that the dirt can enter the inside of the conveying frame 525, and specifically, the existing driving motor is installed on the outer wall of the treatment box 1 (not shown in the figure), the output shaft of the driving motor is connected with any rotating shaft 522 through a shaft coupling, the corresponding rotating shaft 522 is driven to rotate by the existing driving motor, the rotating shaft 522 is driven to move the transmission belt 524 by cooperating with the pulley 523 during the rotation of the rotating shaft 522, the conveying frame 525 close to the filter frame 51 is driven to move up by the connecting block 526 during the movement of the transmission belt 524, and the falling dirt caused by the backflow impact can be collected and treated during the movement of the conveying frame 525.

[0049] When the conveying frame 525 moves to the outside of the treatment box 1 through the through groove, the dirt at the bottom of the conveying frame 525 is quickly cleaned by the worker at this time, and the cleaned conveying frame 525 reenters the inside of the treatment box 1.

[0050] Refer to Figures 4 to 6, in order to ensure that the water flow inside the conveying frame 525 does not form a turbulent flow to cause the possibility of dirt leakage, the filter screen and the conveying assembly 52 provided by the application can cooperate to ensure that the water flow inside the conveying frame 525 can always be discharged outward, specifically, the dredging assembly 54 includes a dredging plate 541 arranged at the bottom of the conveying frame 525 and reciprocating along the height direction of the conveying frame 525, The dredging plate 541 is uniformly provided with a plurality of dredging protrusions 542 matched with the screen 527, the conveying frame 525 and the dredging plate 541 are uniformly provided with fixed protrusions, the corresponding fixed protrusions of the conveying frame 525 are installed with telescopic spring rods 543 (see Figure 3 ), the telescopic end of the telescopic spring rod 543 is installed on the fixed protrusion on the corresponding dredging plate 541.

[0051] The conveying frame 525 is symmetrically installed with a fixed frame 544 along the width direction of the conveying frame 525, a reversing shaft 545 is rotatably installed between the corresponding fixed frames 544 through bearings, the fixed frames 544 are jointly limited to slide and move up and down The adjusting block 546 is arranged, the adjusting rope 547 is arranged on the reversing shaft 545, one end of the adjusting rope 547 is installed on the corresponding adjusting block 546, the end of the adjusting rope 547 away from the corresponding adjusting block 546 is installed on the corresponding dredging plate 541, The side of the adjusting block 546 away from the adjusting rope 547 is installed with a linkage frame 548, and the inner side wall of the treatment box 1 is installed with a rubber protrusion 549 corresponding to the linkage frame 548.

[0052] The rubber protrusion 549 is aligned with the movement track of the linkage frame 548, in the initial state, the dredging plate 541 is spaced apart from the screen 527 by a certain distance, and in the specific working process, when the conveying frame 525 close to the filter frame 51 is in the process of moving up, the linkage frame 548 driven by the conveying frame 525 will gradually contact the rubber protrusion 549. Because the rubber protrusion 549 has certain elasticity and blocking ability, after the two are in contact, the rubber protrusion 549 will generate a downward resistance to the linkage frame 548. At this time, the conveying frame 525 is still moving upward, and the linkage frame 548 cannot move upward synchronously with the conveying frame 525 due to the blocking of the rubber protrusion 549, thereby forming the state that the linkage frame 548 moves downward relative to the conveying frame 525, and then the linkage frame 548 and the adjusting block 546 cooperate to drive the adjusting rope 547 to move on the reversing shaft 545, The adjusting rope 547 drives the dredging plate 541 to move up during the movement, until the dredging plate 541 contacts the screen 527, at this time the telescopic spring rod 543 is in the compressed state.

[0053] When the dredging plate 541 gradually approaches the leaky mesh 527 under the mechanical transmission action, the dredging protrusions 542 distributed on the surface of the dredging plate 541 will first contact the dirt attached to the leaky mesh 527. As the distance between the two continues to decrease, the dredging protrusions 542 will, by virtue of their structural morphology, penetrate into the mesh holes and surface gaps of the leaky mesh 527, and produce extrusion, peeling and dispersion effects on the dirt, thereby achieving preliminary dredging treatment of the leaky mesh 527.

[0054] When the dredging plate 541 is in complete contact with the leaky mesh 527, the conveying frame 525 does not stop moving, but continues to maintain an upward moving state. At this time, the linkage frame 548 connected to the conveying frame 525 will be subjected to a continuous upward traction force, which gradually exceeds the deformation bearing limit of the rubber protrusion 549. Under the action of the traction force, the linkage frame 548 begins to overcome the elastic deformation resistance of the rubber protrusion 549, forcing the rubber protrusion 549 to change its shape in the form of bending, compression, etc. With the continuous upward movement of the conveying frame 525, the linkage frame 548 continuously moves upward until it completely passes over the rubber protrusion 549. Once the linkage frame 548 passes over the rubber protrusion 549, the external force acting on the rubber protrusion 549 disappears, and its elasticity will cause it to gradually return to its initial shape, at which time it no longer hinders the upward movement of the linkage frame 548. At the same time, the telescopic spring rod 543, which was in a forced compression state, will quickly extend and reset after losing external constraints. During the resetting process, the telescopic spring rod 543 will move the dredging plate 541 away from the leaky mesh 527 and reset it.

[0055] Further, the dirt and impurities that may block the mesh holes of the leaky mesh 527 are timely removed, thereby effectively preventing the water flow from being unable to smoothly drain due to the blockage of the mesh holes, causing turbulent disturbance in the interior of the conveying frame 525, which is likely to cause the collected dirt in the conveying frame to be spilled with the water flow.

[0056] In addition, by ensuring the smoothness of the leaky mesh 527, not only is the above-mentioned dirt spillage problem avoided, but more importantly, the dirt accumulated in the interior of the conveying frame 525 can be smoothly and completely conveyed together with the conveying frame 525 to the outside of the treatment box 1 for centralized treatment, thereby fundamentally avoiding the dirt from remaining in the system or causing secondary pollution to the flushing water when it is discharged with the water flow, and providing reliable protection for maintaining the high recovery quality of the flushing water.

[0057] Further, by actively conveying and cooperating with the flushing of the filter frame 51 by the backflow, the amount of dirt in the flushing water is effectively reduced, thereby ensuring the subsequent flushing water recycling effect.

[0058] With reference to Figure 7 and Figure 8Due to the softness of the transmission belt 524 and the impact of the water flow, the conveying frame 525 on the transmission belt 524 may shake when collecting dirt, resulting in a gap between the conveying frame 525 and the filter frame 51, which is easy to cause the dirt not to be completely collected. The present application provides a limiting rod 11 which can limit the conveying frame 525. Specifically, the processing box 1 is symmetrically provided with a limiting rod 11 which cooperates with the conveying frame 525 near the filter frame 51 along the width direction of the processing box 1. The limiting rod 11 is provided with a connecting protrusion, and the connecting protrusion is jointly provided with a fixing rack 12, and the fixing rack 12 is installed on the inner wall of the processing box 1.

[0059] The end of the limiting rod 11 near the bottom of the processing box 1 is provided with a guide protrusion 13 for guiding the conveying frame 525.

[0060] The distance from the limiting rod 11 to the filter frame 51 is equal to the width of the conveying frame 525. In specific work, when the conveying frame 525 moves to one side of the filter frame 51, the limiting rod 11 can limit the conveying frame 525 at this time, so that the conveying frame 525 is always in close contact with the filter frame, thereby ensuring that the conveying frame 525 will not shake when collecting dirt, reducing the influence of water flow impact on the stability of the conveying frame 525, improving the collection effect of dirt, and the guide protrusion 13 can guide the conveying frame 525 when moving to one side of the filter frame 51, avoiding the possibility that the water flow impact on the transmission belt 524 causes the conveying frame 525 to be not completely aligned with the limiting rod 11.

[0061] When the washing water inside the processing box 1 reaches a certain depth (i.e. the washing water flows over the arc-shaped plate 4 and flows to the inside of the processing box 1 and is located on one side of the drain pipe 2), the existing water pump (not shown in the figure) and the drain pipe 2 are used to cooperate to discharge the treated washing water in the processing box 1. It should be noted that the height of the washing water inside the processing box 1 is always lower than the height of the through groove.

[0062] Example two: Refer to Figure 9 And Figure 10 On the basis of example one, the cleaning assembly 53 includes a plurality of reciprocating plates 531 uniformly distributed along the height direction of the filter frame 51. The reciprocating plate 531 is provided with a cleaning brush 532 on the side close to the filter frame 51. The lifting rod 533 is slidably arranged along the height direction on the top of the processing box 1 which is high on one side, and the reciprocating plate 531 is installed on the lifting rod 533.

[0063] The linkage rod 534 in Z-shaped structure is arranged on the top of the lifting rod 533, the elastic telescopic rod 535 is arranged on the top of the high side of the processing box 1, the telescopic end of the elastic telescopic rod 535 is arranged on the long horizontal section of the linkage rod 534, the rotating shaft 522 of the corresponding support frame 521 penetrates through the corresponding support frame 521, and the circumferential surface of one end of the rotating shaft 522 is provided with the rotating frame 536 matched with the short horizontal section of the linkage rod 534.

[0064] The rotating frame 536 is composed of the annular block arranged on the rotating shaft 522 and the swing frames uniformly distributed in the circumferential direction of the annular block, and when the rotating shaft 522 starts to rotate, the rotating frame 536 connected with the rotating shaft 522 rotates synchronously. During the rotation of the rotating frame 536, the swing frames distributed in the circumferential direction gradually contact the short horizontal section of the linkage rod 534. With the continuous rotation of the rotating frame 536, the swing frames generate a downward thrust on the short horizontal section of the linkage rod 534, thereby driving the entire linkage rod 534 to move downward. In this process, the elastic telescopic rod 535 connected with the linkage rod 534 is synchronously extruded to compress and deform, and stores a certain elastic potential energy. During the downward movement of the linkage rod 534, the force is transmitted to the reciprocating plate 531 through the lifting rod 533 connected with the linkage rod 534, so that the reciprocating plate 531 moves downward synchronously. The cleaning brush 532 arranged on the reciprocating plate 531 contacts the surface of the filter screen and wipes and cleans the dirt attached to the filter screen with the downward movement of the reciprocating plate 531, thereby realizing preliminary cleaning. The cleaning effect of the cleaning brush 532 and the backflow impact of the washing water form effective cooperation, that is, the mechanical wiping of the brush can loosen stubborn dirt, and the backflow of the washing water can timely flush away the loosened dirt, and the two interact with each other, thereby further accelerating the falling speed of the dirt on the filter frame 51.

[0065] In addition, the reciprocating plate 531 does not only move downward in a single direction, but also moves up and down reciprocatingly under the elastic action of the elastic telescopic rod 535. The reciprocating plate 531 changes the path and direction of the backflow of the washing water during the reciprocating movement, so that the backflow direction of the washing water is always in dynamic change. This causes the dirt on the filter frame 51 to always be subjected to an alternating force with the direction alternately changing, thereby avoiding the situation that the dirt is adapted to remain due to long-term bearing of a single direction force, and further ensuring the cleaning effect of the dirt on the filter frame 51 and ensuring that the filter frame 51 can be more thoroughly cleaned.

[0066] The implementation principle of the application is: (1) The water flows to the filter frame 51 at a certain speed, the filter frame 51 blocks the dirt inside the water flow during the water flow, so that the dirt cannot pass through the filter frame 51, and the water flow continues to move and hits the arc-shaped plate 4, and the backflow is formed after the water flow collides with the arc-shaped plate 4. The backflow of the water flow smoothly falls the dirt on the surface of the filter frame 51 by means of the reverse impact force, and then the backflow of the washing water actively washes the filter frame 51.

[0067] (2) Any rotating shaft 522 rotates, and the rotating shaft 522 rotates to drive the transmission belt 524 to move through the cooperation of the other rotating shaft 522 and the belt wheel 523. The transmission belt 524 moves to drive the conveying frame 525 close to the filter frame 51 to move up through the connecting block 526. The conveying frame 525 moves up to collect and process the dirt falling off by backflow impact.

[0068] (3) The linkage frame 548 and the adjusting block 546 cooperate to drive the adjusting rope 547 to move on the reversing shaft 545, and the adjusting rope 547 drives the dredging plate 541 to move up during the movement. Until the dredging plate 541 contacts the screen 527, the extension spring rod 543 is in a compressed state. When the dredging plate 541 gradually approaches the screen 527 under the action of mechanical transmission, the dredging protrusions 542 distributed on the surface of the dredging plate 541 will first contact the dirt attached to the screen 527. With the continuous reduction of the distance between the two, the dredging protrusions 542 will penetrate into the mesh holes and surface gaps of the screen 527 by means of their own structure, and will produce extrusion, stripping and dispersion effects on the dirt, thereby realizing the preliminary dredging treatment of the screen 527.

[0069] (4) When the washing water in the treatment tank 1 reaches a certain depth, the existing water pump and the drain pipe 2 cooperate to discharge the treated washing water in the treatment tank 1 to the outside.

[0070] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded only as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0071] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A PSA water ring vacuum pump seal flushing water recycling system, comprising a hollow treatment box (1), a drain pipe (2) is installed through the top of the treatment box (1), the side wall of the treatment box (1) away from the drain pipe (2) is provided as a convex structure, and a liquid inlet pipe (3) is installed through the convex structure, characterized in that: The arc-shaped plate (4) and the filtering mechanism (5) matched with the arc-shaped plate (4) are arranged in the processing box (1). The filtering frame (51) is arranged in the processing box (1) and located between the liquid inlet pipe (3) and the arc-shaped plate (4). The conveying assembly (52) is arranged in the processing box (1) and located between the filtering frame (51) and the liquid inlet pipe (3), and conveys the dirt filtered by the filtering frame (51) outward. The cleaning assembly (53) is arranged in the processing box (1) and located between the liquid outlet pipe (2) and the filtering frame (51), and cleans the dirt on the filtering frame (51).

2. The system according to claim 1, characterized in that: The conveying assembly (52) comprises a through groove formed in one side of the top of the processing box (1), the support frames (521) are symmetrically arranged on the one side of the top of the processing box (1) and located at the through groove along the width direction of the processing box (1), the rotating shafts (522) are symmetrically arranged on the vertical plane of the through groove along the height direction of the processing box (1), and the lower rotating shaft (522) is rotatably arranged on the inner wall of the processing box (1) through a bearing.

3. The system according to claim 2, characterized in that: The upper rotating shaft (522) is located between the two support frames (521), the upper rotating shaft (522) is rotatably arranged on the support frame (521) on the corresponding side through a bearing at both ends, the rotating shaft (522) is symmetrically arranged with the pulleys (523) along the length direction, the transmission belts (524) are jointly arranged between the adjacent pulleys (523) along the length direction, and the transmission belts (524) are uniformly provided with the conveying frames (525) along the length direction.

4. The seal flush water recycling system for a PSA water ring vacuum pump according to claim 3, characterized in that: The two transmission belts (524) are provided with the connecting blocks (526) matched with the conveying frames (525), the conveying frames (525) are arranged between the two connecting blocks (526), the conveying frames (525) are provided with the screen meshes (527) at the bottom, and the screen meshes (527) are jointly arranged with the dredging assemblies (54) between the conveying frames (525) and the processing box (1).

5. The system according to claim 4, characterized in that: The dredging assembly (54) comprises the dredging plates (541) arranged at the bottom of the conveying frames (525) and reciprocally moving along the height direction of the conveying frames (525), the dredging plates (541) are uniformly provided with the dredging protrusions (542) matched with the screen meshes (527), the conveying frames (525) and the dredging plates (541) are provided with the fixed protrusions, the telescopic spring rods (543) are arranged on the corresponding fixed protrusions of the conveying frames (525), and the telescopic ends of the telescopic spring rods (543) are arranged on the fixed protrusions of the corresponding dredging plates (541).

6. The system according to claim 5, characterized in that: The fixed frame (544) is symmetrically installed at both ends of the conveying frame (525) along the width direction, the reversing shaft (545) is rotatably installed between the corresponding fixed frames (544) through bearings, the adjusting block (546) is slidably arranged between the fixed frames (544) and away from one side of the corresponding conveying frame (525), the adjusting rope (547) is arranged on the reversing shaft (545), one end of the adjusting rope (547) is installed on the corresponding adjusting block (546), the other end of the adjusting rope (547) is installed on the corresponding dredging plate (541), the linkage frame (548) is installed on the side of the adjusting block (546) away from the adjusting rope (547), and the rubber protrusion (549) corresponding to the linkage frame (548) is installed on the inner side wall of the processing box (1).

7. The system according to claim 3, characterized in that: The limiting rod (11) is symmetrically arranged in the processing box (1) along the width direction and cooperates with the conveying frame (525) near the filter frame (51), the connecting protrusion is installed on the limiting rod (11), the fixed rack (12) is jointly installed on the connecting protrusion, and the fixed rack (12) is installed on the inner wall of the processing box (1).

8. The system according to claim 7, characterized in that: The limiting rod (11) is provided with the guide protrusion (13) for guiding the conveying frame (525) at one end near the bottom of the processing box (1).

9. The system of claim 1, wherein: The cleaning assembly (53) comprises a plurality of reciprocating plates (531) uniformly distributed along the height direction of the filter frame (51), the cleaning brush (532) is installed on the side of the reciprocating plate (531) close to the filter frame (51), the lifting rod (533) is slidably arranged on the top of the processing box (1) on the high side along the height direction, and the reciprocating plate (531) is installed on the lifting rod (533).

10. The system of claim 9, wherein the system further comprises a water recovery system. The Z-shaped linkage rod (534) is installed on the top of the lifting rod (533), the telescopic elastic rod (535) is installed on the long horizontal section of the linkage rod (534), the rotating shaft (522) penetrates the corresponding support frame (521), and the rotating frame (536) cooperates with the short horizontal section of the linkage rod (534) and is installed on the circumferential surface of one end of the rotating shaft (522) penetrating the support frame (521).

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