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CN-121974528-A - Ship ballast water treatment equipment

CN121974528ACN 121974528 ACN121974528 ACN 121974528ACN-121974528-A

Abstract

The invention discloses ship ballast water treatment equipment, which belongs to the field of sewage treatment and comprises a treatment part, wherein the treatment part comprises a cyclone part, a tangential liquid inlet arranged on the outer wall of the cyclone part, a sand settling opening arranged at the lower end of the cyclone part and an overflow pipe fixed on the inner wall of the cyclone part, the overflow pipe is positioned at the center of the cyclone part, the upper end of the overflow pipe is fixedly connected with the inner wall of the cyclone part, a filter cylinder is arranged at the contraction section of the overflow pipe, when a second liquid discharge port is closed, liquid forced to enter the overflow pipe passes through the filter cylinder to intercept small organisms which cannot be separated by cyclone, and a first spiral diversion flange in an expansion section can force the fluid to enter the overflow pipe to rotate at a high speed, so that water flow in the contraction section can carry out tangential sweep along the surface of the filter cylinder to continuously strip sediment and organisms which are attempted to be attached on the filter cylinder, the effective working time of the filter cylinder is prolonged, and the speed of pressure difference rising is slowed down.

Inventors

  • TAN HUI

Assignees

  • 上海威逊沃顿科技有限公司

Dates

Publication Date
20260505
Application Date
20260320

Claims (10)

  1. 1. The ship ballast water treatment equipment comprises a treatment part (1) and is characterized in that the treatment part (1) comprises a rotational flow part (11), a tangential liquid inlet (12) formed on the outer wall of the rotational flow part (11), a sand settling port formed at the lower end of the rotational flow part (11) and an overflow pipe (3) fixed on the inner wall of the rotational flow part (11); The overflow pipe (3) is positioned at the center of the rotational flow part (11) and the upper end of the overflow pipe is fixedly connected with the inner wall of the rotational flow part (11), a cavity (35) communicated with a hollow cavity in the overflow pipe (3) is formed in the inner wall of the overflow pipe (3), a filter cylinder (36) is arranged in the cavity (35), and the filter cylinder (36) is positioned at the communication position of the cavity (35) and the hollow cavity in the overflow pipe (3); The cyclone part (11) upper end has seted up first leakage fluid dram (37) and second leakage fluid dram (38), first leakage fluid dram (37) run through overflow pipe (3) and are linked together with cavity (35), second leakage fluid dram (38) are linked together with the inside cavity of overflow pipe (3), cyclone part (11) upper end fixedly connected with first leakage fluid dram (39) and second leakage fluid dram (40), and first leakage fluid dram (39) link to each other with first leakage fluid dram (37), second leakage fluid dram (40) link to each other with second leakage fluid dram (38).
  2. 2. The ship ballast water treatment device according to claim 1, wherein the overflow pipe (3) consists of a contraction section (31), a throat section (32) and an expansion section (33), the contraction section (31) and the expansion section (33) are respectively positioned at two ends of the throat section (32) and are integrally formed with the throat section, a plurality of first spiral guide flanges (34) are integrally formed on the inner wall of the expansion section (33), and the cavity (35) is formed in the contraction section (31).
  3. 3. The ship ballast water treatment device according to claim 2, further comprising an enhanced cavitation assembly (4) arranged in the overflow pipe (3), wherein the enhanced cavitation assembly (4) comprises a plurality of second spray heads (45) fixed on the inner wall of the throat (32), an inner runner (46) arranged in the throat (32), and a vacuum regulating valve (47) arranged on the outer wall of the throat (32) and communicated with the inner runner (46), the inner runner (46) is connected with the input ends of the plurality of second spray heads (45), an air inlet interface (49) is arranged on the outer wall of the cyclone part (11), and a connecting pipeline (48) for communicating the vacuum regulating valve (47) with the air inlet interface (49) is arranged inside the cyclone part (11).
  4. 4. A ship ballast water treatment apparatus according to claim 3, wherein the cavitation-enhancing assembly (4) further comprises a plurality of inserts (41) fixedly connected to the inner wall of the throat (32), a conductive member (43) disposed inside the overflow pipe (3) and connected to the plurality of inserts (41), an ultrasonic transduction portion (44) fixed to the upper end of the cyclone portion (11), and one end of the conductive member (43) penetrates the overflow pipe (3) and the cyclone portion (11) and is connected to the output end of the ultrasonic transduction portion (44).
  5. 5. A ship ballast water treatment apparatus according to claim 4, wherein the conductive member (43) is located inside the overflow pipe (3) and is in non-rigid contact with the overflow pipe (3), and a spacer is provided between the conductive member (43) and the overflow pipe (3).
  6. 6. A ship ballast water treatment apparatus according to claim 4, wherein the cavitation-enhancing assembly (4) further comprises a plurality of second spiral guide flanges (42) respectively fixed to one side of the plurality of inserts (41).
  7. 7. A ship ballast water treatment apparatus according to claim 6, wherein a plurality of the second spray heads (45) and the inserts (41) are circumferentially distributed on the inner wall of the throat (32) at equal intervals, and a plurality of the first spiral diversion flanges (34) are circumferentially distributed on the inner wall of the expansion section (33) at equal intervals.
  8. 8. The ship ballast water treatment equipment according to claim 1, wherein the overflow pipe (3) is internally provided with a dynamic cleaning assembly (5), the dynamic cleaning assembly (5) comprises a rotating rod (52) positioned at the inner center of the contraction section (31) and the upper end of which is rotationally connected with the inner wall of the rotational flow part (11), a scraping plate (58) fixedly connected with the outer part of the rotating rod (52), the free end of the scraping plate (58) is contacted with the inner wall of the filter cylinder (36), the upper end of the rotational flow part (11) is fixedly connected with a motor (51), and an output shaft of the motor (51) penetrates through the rotational flow part (11) and is connected with the rotating rod (52).
  9. 9. A ship ballast water treatment apparatus according to claim 8, wherein the dynamic cleaning assembly (5) further comprises a gear ring (55) rotatably connected inside the cyclone part (11) and a second gear (54) meshed with the gear ring (55), a first gear (53) rotatably connected inside the cyclone part (11) and fixedly connected outside an output shaft of the motor (51), a connecting ring (56) rotatably connected inside the cyclone part (11), and a dynamic seal member (57) arranged inside the cyclone part (11) and connected with the connecting ring (56), wherein the first gear (53) is meshed with the second gear (54), the upper end of the connecting ring (56) is fixedly connected with the gear ring (55) and the lower end of the connecting ring is fixedly connected with the upper end of the filter cylinder (36), and the filter cylinder (36) is rotatably connected in the contraction section (31).
  10. 10. The ship ballast water treatment device according to claim 1, further comprising a pretreatment assembly (2) connected with the tangential liquid inlet (12), wherein the pretreatment assembly (2) comprises a shell (21), a venturi tube (22) fixed on one side of the shell (21) and communicating the output end of the shell (21) with the tangential liquid inlet (12), a plurality of baffle plates (23) fixedly connected to the inner wall of the shell (21), a first spray head (24) fixedly connected to one side of the baffle plates (23), an input interface (25) arranged on one side of the shell (21) and communicated with the first spray head (24), the baffle plates (23) are arranged in a space staggered array on the inner wall of the shell (21), irregular zigzag flow passages forcing water flow diversion are formed between the adjacent baffle plates (23), and the throat section area of the venturi tube (22) is smaller than the section area of the tangential liquid inlet (12) and is used for accelerating fluid after micro vortex agglomeration.

Description

Ship ballast water treatment equipment Technical Field The invention relates to the field of sewage treatment, in particular to ship ballast water treatment equipment. Background When the ship is in no-load or half-load navigation, seawater (namely, ballast water) needs to be injected into the ballast tank to maintain the stability, draft and structural integrity of the ship, and the ballast water treatment equipment is equipment for treating the ballast water in the process of sucking and discharging the ballast water and is used for treating bacteria, microorganisms, small fishes, shrimps, crabs and other substances carried in the water so as to avoid ecological threat and species invasion. The conventional cyclone separator mainly relies on density difference to remove heavy particles (sediment) when the conventional ballast water treatment equipment usually adopts a combined process of primary mechanical filtration and secondary core killing (such as ultraviolet rays, electrolysis and chemical agents), however, when the conventional ballast water treatment equipment actually sails, especially in and out of a high-turbidity and high-sediment-content coastal region or estuary region (such as a Yangtze river mouth and a yellow river mouth), a large amount of microorganisms in the ballast water are close to water in density and small in particle size, are driven by centrifugal force to have weak action, are extremely easy to enter a rear-end treatment unit along with an overflow pipe of the cyclone, increase the load of the rear-end killing equipment, possibly cause the discharge standard not to reach, the conventional main-flow automatic backwash filter mostly adopts a metal filter cartridge, and a large amount of fine sediment is combined with a biologically secreted extracellular polymer, so that dense viscous mud cakes are easily formed on the surface of the filter cartridge, the filter is frequently triggered to automatically backwash, the ballast flow is greatly reduced, the loading progress of a ship is influenced, the mechanical wear of the filter cartridge is extremely increased, and the system operation stability is extremely poor. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide ship ballast water treatment equipment. In order to solve the problems, the invention adopts the following technical scheme. The ship ballast water treatment equipment comprises a treatment part, wherein the treatment part comprises a cyclone part, a tangential liquid inlet arranged on the outer wall of the cyclone part, a sand setting opening arranged at the lower end of the cyclone part and an overflow pipe fixed on the inner wall of the cyclone part; The overflow pipe is positioned at the center of the cyclone part, the upper end of the overflow pipe is fixedly connected with the inner wall of the cyclone part, a cavity communicated with the hollow cavity in the overflow pipe is formed in the inner wall of the overflow pipe, a filter cartridge is arranged in the cavity, and the filter cartridge is positioned at the position where the cavity is communicated with the hollow cavity in the overflow pipe; The cyclone part is characterized in that a first liquid outlet and a second liquid outlet are formed in the upper end of the cyclone part, the first liquid outlet penetrates through the overflow pipe and is communicated with the cavity, the second liquid outlet is communicated with the hollow cavity in the overflow pipe, a first liquid outlet port and a second liquid outlet port are fixedly connected to the upper end of the cyclone part, the first liquid outlet port is connected with the first liquid outlet port, and the second liquid outlet port is connected with the second liquid outlet port. Furthermore, the overflow pipe consists of a contraction section, a throat and an expansion section, wherein the contraction section and the expansion section are respectively positioned at two ends of the throat and are integrally formed with the throat, a plurality of first spiral guide flanges are integrally formed on the inner wall of the expansion section, and the cavity is formed in the contraction section. Further, the device further comprises an enhanced cavitation assembly arranged in the overflow pipe, the enhanced cavitation assembly comprises a plurality of second spray heads fixed on the inner wall of the throat, an inner runner arranged in the throat, and a vacuum regulating valve arranged on the outer wall of the throat and communicated with the inner runner, the inner runner is connected with the input ends of the plurality of second spray heads, an air inlet interface is arranged on the outer wall of the cyclone part, and a connecting pipeline for communicating the vacuum regulating valve with the air inlet interface is arranged inside the cyclone part. Further, the enhanced cavitation assembly further comprises a plurality of inserts fixedly connected to the inner wall