CN201545720U - A low-pressure high-intensity ultraviolet ship ballast water treatment equipment - Google Patents

Abstract

The utility model belongs to the field of ship ballast water treatment equipment, in particular to a low-pressure high-intensity ultraviolet ship ballast water treatment equipment. The water inlet reducer and the equipment shell are connected by connecting flanges. A support plate is set in the equipment shell close to the water inlet reducer. The central axis of the equipment between them, and the low-pressure high-intensity ultraviolet lamp tubes arranged in groups are installed between the central axis of the equipment and the equipment shell. The ballast water enters the equipment through the water inlet of the equipment set at the front end of the water inlet reducer, and is discharged from the water outlet set at the bottom of the equipment shell after being sterilized by ultraviolet rays. The utility model has the advantages of high degree of automation, compact structure, stable operation and high sterilizing efficiency, and has good effect when used for ballast water sterilizing.

Description

A low-pressure high-intensity ultraviolet ship ballast water treatment equipment

technical field

The utility model belongs to the field of ship ballast water treatment equipment, in particular to a low-pressure high-intensity ultraviolet ship ballast water treatment equipment.

Background technique

Ocean-going ships generally use the increase or decrease of ballast water to adjust the center of gravity of the ship to keep the ship stable. When ships carry out long-distance transportation, especially on ocean voyages, microorganisms will be brought to a new environment through ballast water, posing a greater threat to the safety of the marine environment of other countries and regions. In the past ten years, the problem of microbial invasion caused by ballast water has attracted great attention from the international community. In order to control the problem of exogenous biological invasion caused by the ballast water of ocean-going ships, the International Maritime Organization (IMO) has formulated strict ballast water treatment regulations, but there are very few mature ballast water treatment systems.

At present, the main patents on the ballast water treatment system of ocean-going ships are: patent 02140632.4, which uses the heat generated by the exhaust gas heat exchange generated by the ship to heat the ballast water for disinfection; Apply a voltage between the discharge electrode and the ground electrode to form a strong electric field for discharge, ionize and decompose oxygen and water to form O ₃ and hydroxyl, etc., and then dissolve through the jet to form a free radical solution, which is added to the ballast water delivery pipeline. Kill microorganisms in ballast water; patent 200510046991.8, use electrolysis system to treat ballast water, generate oxidants through electrolysis, including chlorine gas, hypochlorous acid molecules, chlorine dioxide, etc., and kill microorganisms in water together with the action of electric field; patent 200580040948.9, using electrolysis to produce hypochlorous acid to treat ballast water; patent 200680015713.9, treating ballast water by combining mechanical killing methods with jet flow and cavitation effects and ozone treatment methods; patent 200680016920.6, using electromagnetic technology to treat ballast water Heating to kill microorganisms in water; patent 200680020730.1, using bactericide in ballast water to kill microorganisms in water; patent 200710010653.8, using advanced oxidation technology of sulfuric acid free radicals to treat microorganisms in ballast water; patent 200710010538.0, using Microwave treatment kills microorganisms in ballast water.

Contents of the invention

The utility model aims at the shortage of ultraviolet ballast water disinfection equipment in the domestic and foreign markets, and provides a kind of equipment that uses high-dose low-pressure ultraviolet rays to disinfect ballast water. 9 Connected by the connecting flange 3, the support plate 4 is set near the water inlet reducer 2 in the equipment shell 9, the support plate central axis 5 is set in the center of the support plate 4, and the connection between the support plate 4 and the end cover of the equipment is set. Between the central axis 6 of the equipment, install low-voltage high-intensity ultraviolet lamps 7 equally spaced between the central axis 6 and the equipment housing 9. The lamp rectifiers are controlled in groups, with six in each group, to evenly adjust the ultraviolet dose; The power of the low-pressure high-intensity ultraviolet lamp tube 7 is 200-400w/lamp, and the ultraviolet dose produced is 100-400mJ/cm ² ; the front end of the water inlet reducer 2 is provided with an equipment water inlet 1, and the bottom of the equipment housing 9 is provided with a water outlet 10 .

A quartz sleeve 8 is arranged outside the low-pressure high-intensity ultraviolet lamp tube 7 .

The lamp tube spacing of the low-pressure high-intensity ultraviolet lamp tubes 7 is 5-10 cm.

The device casing 9 is made of 1Cr18Ni9Ti material.

The beneficial effects of the utility model are:

1. Using low-voltage high-strength ultraviolet lamps, it can provide ultraviolet disinfection dosage: 100-400mJ/cm ² , which can not only produce high-dose ultraviolet rays, but also save power consumption.

2. This system has an efficient inactivation effect on seaweed and other plankton existing in the ballast water treatment of ocean-going ships.

3. It has a good inactivation effect on bacteria, viruses and other foreign organisms harmful to marine ecology in seawater.

4. There is no need to add any active substances, and no active substances harmful to the environment will be produced.

5. The equipment has high degree of automation, small footprint, compact structure, stable work and high efficiency.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model;

Figure 2 is a diagram of the internal layout of the ultraviolet lamp.

Labels in the figure:

1-equipment water inlet; 2-water inlet reducer; 3-connecting flange; 4-support plate; 5-support plate central axis; 6-equipment central axis; Tube; 9-equipment outer wall; 10-water outlet.

Detailed ways

The utility model provides a device for disinfecting ballast water by using high-dose low-pressure ultraviolet rays. The utility model will be further described below through the description of drawings and specific implementation methods.

Figure 1 is a schematic diagram of the overall structure of the utility model. The water inlet reducer 2 is connected to the equipment shell 9 made of 1Cr18Ni9Ti through the connecting flange 3, and the support plate 4 is set in the equipment shell 9 close to the water inlet reducer 2, and the center of the support plate 4 is set to the center of the support plate. axis 5, and set the equipment central axis 6 between the support plate 4 and the equipment end cover, and install 36 low-pressure high-intensity ultraviolet lamp tubes 7 arranged at equal intervals between the equipment central axis 6 and the equipment housing 9, every two The distance between the lamp tubes is 7cm, and a quartz sleeve 8 is arranged outside each low-voltage high-intensity ultraviolet lamp tube 7. The power of a single low-pressure high-intensity ultraviolet lamp tube 7 is 300w; A water inlet 1 and a water outlet 10 are provided at the bottom of the equipment housing 9 .

When the utility model works, the ballast water enters the equipment through the water inlet 1 of the equipment, and is discharged from the water outlet 10 after being sterilized rapidly by ultraviolet light inside the equipment. The equipment has a high degree of automation and does not require human control and management. The ultraviolet intensity is monitored in real time by the online light intensity meter, which can reflect the disinfection dose of the equipment in time. The ultraviolet dose generated is 100-400J/cm ² . Moreover, the operation status of each ultraviolet lamp is reflected in real time by electronic control instruments to ensure the normal operation of the equipment.

Claims (3)

1. A low-pressure high-intensity ultraviolet ship ballast water treatment equipment is characterized in that the water inlet reducer (2) is connected to the equipment casing (9) through a connecting flange (3), and is inside the equipment casing (9) Set a support plate (4) close to the water inlet reducer (2), set a support plate central axis (5) in the center of the support plate (4), and set the equipment center between the support plate (4) and the equipment end cover. Shaft (6), low-voltage high-intensity ultraviolet lamps (7) distributed at equal intervals are installed between the central axis of the equipment (6) and the equipment housing (9). The power of the intensity ultraviolet lamp tube (7) is 200-400w/lamp, and the ultraviolet dose that produces is 100-400mJ/cm ² ; ) bottom is provided with water outlet (10). 2. A low-pressure high-intensity ultraviolet ship ballast water treatment device according to claim 1, characterized in that a quartz sleeve (8) is arranged outside the low-pressure high-intensity ultraviolet lamp (7). 3. A low-pressure high-intensity ultraviolet light ship ballast water treatment device according to claim 1, characterized in that the distance between the low-pressure high-intensity ultraviolet light tubes (7) is 5-10 cm.

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