JPH07106347B2 - Seawater sterilizer - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus used for sterilizing seawater and feeding it into a fish-culture aquarium.

(Prior Art) When culturing a brackish fish (fish that lives in salt water) in an aquarium, one of the factors that reduce the productivity thereof is fish diseases such as congenital disease, edwajira, and streptococcal disease. Note that these fish diseases are caused by pathogenic bacteria that live in seawater. Therefore, in order to improve the productivity of aquaculture, it is necessary to sterilize the seawater before sending the seawater into the aquarium.

Conventionally, the following structure is used as an apparatus for sterilizing this seawater. This device was developed paying attention to the fact that ultraviolet rays have a bactericidal action. The conventional device will be described below.
As shown in the figure, the device main body 18 is provided with an intake port 19 for inhaling seawater at its lower part, and an emission port 20 for discharging the inhaled seawater into the fish-culture aquarium at the upper part. Has been. Further, an ultraviolet lamp 21 is attached inside the apparatus main body 18 along the longitudinal direction thereof. Then, a pump 18 (not shown) is used to draw the water from the suction port 19 to the device main body 18
The seawater inhaled therein is sterilized by the ultraviolet rays emitted from the ultraviolet lamp 21, and the sterilized seawater is discharged from the discharge port 20 into the fish culture tank.

(Problems to be Solved by the Invention) By the way, an ultraviolet lamp
Since the glass tube used for 21 is vulnerable to impact, it may be damaged by the impact of seawater sent into the apparatus body 18 by the pump. Therefore, in the above conventional device, the ultraviolet lamp 21 is protected by the impact-resistant quartz glass tube 22.

However, if the ultraviolet lamp 21 is protected by the quartz glass tube 22, the ultraviolet rays emitted from the ultraviolet lamp 21 will be blocked by the quartz glass tube 22, and the sterilizing ability will be deteriorated. Further, since the quartz glass tube 22 is expensive, there is a problem that the cost of the device itself becomes high.

In view of the above problems in the prior art, the present invention has an object to provide a seawater sterilizer that can sufficiently exhibit the sterilizing ability of ultraviolet rays and can be manufactured at a low price. It is a thing.

(Means for Solving the Problems) Therefore, in the present invention,
The seawater sterilizer is installed on the main body of the apparatus, a suction port provided at the front end of the main body of the apparatus, a collision plate provided inside the main body of the apparatus so as to face the suction opening, and erected at a rear portion of the main body of the apparatus. The rear plate having a discharge port opened above the rear plate and an ultraviolet lamp provided between the collision plate and the rear plate.

(Example) Hereinafter, the Example of this invention is described based on drawing.

1 is a cross-sectional view taken along the line I-I in FIG. 2, FIG. 2 is a perspective view of the seawater sterilization apparatus according to the present invention (however, the lid is omitted), and FIG. It is the schematic which shows the state installed in the water tank.

As shown in FIGS. 1 and 2, a suction port 3 is provided at the upper part of the front end surface of the device body 1 formed in a cylindrical shape, and seawater is introduced into the device body 1 through the suction port 3. It is supposed to be inhaled. A collision plate 2 is vertically provided inside the apparatus body 1 so as to face the suction port 3, whereby the apparatus body 1 is divided into a storage chamber 1a and a sterilization chamber 1b. Here, a water passage hole 2a is formed in the lower portion of the collision plate 2, and the seawater in the storage chamber 1a can be sent to the sterilization chamber 1b through the water passage hole 2a.
An ultraviolet lamp 4 is attached to the sterilization chamber 1b along the longitudinal direction thereof so that the seawater in the sterilization chamber 1b can be sterilized by the ultraviolet rays emitted from the ultraviolet lamp 4. The sterilization chamber 1b is provided with an opening 14 on its upper surface, and the opening 14 is closed by a lid 15. By providing the opening portion 14 in the sterilization chamber 1b in this manner, the ultraviolet lamp 4 mounted in the sterilization chamber 1b can be replaced if necessary. Cords 5 and 6 are connected to both ends of the ultraviolet lamp 4. Code 5
Is connected to the cord 6 through a transformer 7 and a glow lamp 8, and a plug 9 is provided at the tip of the cord 6 so as to be connected to a 100V outlet. In addition, the device body 1
A semi-circular rear plate 17 is provided upright in the vicinity of the rear end of the rear plate 17 and a discharge port 16 is formed above the rear plate 17.

Next, the operation of this embodiment will be described.

As shown in FIG. 3, the seawater sterilization apparatus A configured as described above is fixed to the upper end of the fish culture tank 11. Here, a hose 13 is connected to the suction port 3 of the seawater treatment device A via a water pump 12, and the hose 13 is put in the sea.

When seawater is pumped into the storage chamber 1a of the apparatus body 1 by the pumping pump 12 (arrow A in FIG. 1), the seawater first collides with the collision plate 2 (arrow B in FIG. 1). The seawater that has collided with the collision plate 2 is sent into the sterilization chamber 1b through the water passage holes 2a formed in the lower part of the collision plate 2 (arrow C in FIG. 1). Then, the seawater sent to the sterilization chamber 1b stays in the sterilization chamber 1b and is sufficiently sterilized by the ultraviolet rays emitted from the ultraviolet lamp 4 during the stay. After that, the water flows over the rear plate 17 at the rear of the apparatus main body 1 and is discharged from the discharge port 16 into the fish culture water tank 11 (arrow D in FIG. 1, arrow E in FIG. 3). As mentioned above, pumping pump
By causing the seawater pumped into the apparatus body 1 by 12 to once collide with the collision plate 2, the flow velocity of the seawater sent to the sterilization chamber 1b becomes considerably low, and as a result,
Since the ultraviolet lamp 4 is not impacted, it is not necessary to protect the ultraviolet lamp 4 with a quartz glass tube as in the conventional case. Therefore, the seawater can be directly sterilized by the ultraviolet rays emitted from the ultraviolet lamp 4, so that the sterilizing ability can be sufficiently exerted. Further, since it is not necessary to use expensive quartz glass, it is possible to reduce the cost.

(Effects of the Invention) According to the present invention, since the seawater sterilization apparatus is configured as described above, it is not necessary to protect the ultraviolet lamp for sterilizing seawater with the quartz glass tube, so that a low-cost apparatus can be manufactured. In addition to the above, there is an excellent effect that the sterilizing ability of ultraviolet rays can be fully exerted. Further, since the rear plate is provided upright on the rear portion of the main body of the apparatus, seawater can be retained in the apparatus, so that there is an effect that seawater can be sterilized sufficiently.

[Brief description of drawings]

1 is a cross-sectional view taken along the line I-I in FIG. 2, FIG. 2 is a perspective view of the seawater sterilization apparatus according to the present invention (however, the lid is omitted), and FIG. FIG. 4 is a schematic view showing a state of being installed in a water tank, and FIG. 4 is a sectional view showing a conventional technique. A: Seawater sterilization device, 1 ... Device body 2 ... Collision plate, 3 ... Intake port, 4 ... Ultraviolet light, 16 ... Emission port, 17 ... Rear plate

Claims (1)

[Claims] 1. An apparatus main body, a suction port provided at a front end of the apparatus main body, a collision plate which is vertically provided so as to face the suction port, and forms a water passage below, and an upright position at a rear portion of the apparatus main body. And a seawater sterilizer comprising a rear plate having an outlet port formed above and an ultraviolet lamp provided in a water flow between the collision plate and the rear plate.