JPH0617469U - Seawater constant temperature heating device - Google Patents

Abstract

(57) [Summary] [Purpose] Natural seawater is heated to an appropriate temperature without any impurities and supplied.
(EN) Provided is a constant temperature heating device for seawater. [Structure] A seawater heating tank 1 having a seawater supply port 3 and a seawater outlet 4, and a warm water heating unit 2 connected to a hot water boiler 5 for passing warm water, which is internally installed in a hollow portion,
Both the surface of the seawater heating tank 1 and the surface of the warm water heating part 2 that come into contact with seawater are formed of a non-metallic material such as a resin and are low-temperature natural seawater such as 10 ° C to 12 ° C supplied from the supply port 3. Is characterized in that it is gently heated by the warm water heating unit 2 and natural seawater 11 heated to an appropriate temperature such as 15 ° C. is supplied from the outlet 4 to the shellfish culture tank 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a constant temperature warming device for seawater used for supplying seawater containing no impurities, which has been heated to a constant temperature of 15 ° C or the like, to a shellfish culture tank or the like.

[0002]

[Prior art]

 In the widespread pearl culture, it is said that the optimum operation for putting the nucleus of the cultured pearl into the shell is at a seawater temperature of about 15 ° C. That is, when the seawater temperature exceeds 15 ° C, bacteria, plankton, etc. are generated in the seawater, and impurities such as these enter the shell during the nucleus insertion work. There is an adverse effect, and the risk of shellfish dying increases when the seawater temperature is low between 10 ° C and 12 ° C, so the natural seawater is stable at approximately 15 ° C. It is concentrated in a very short period of time.

[0003]

[Problems to be solved by the device]

 Therefore, when the shellfish is put into artificially heated seawater that is heated to about 15 ° C by ordinary heating means and the core is put into the seawater, the seawater that comes into contact with the steam pipe for heating or the heating wall is instantly removed. Since the temperature of the hot seawater reaches 20 ° C or higher, impurities such as plankton and bacteria are generated in the hot seawater, and the above-mentioned adverse effects are caused. If the seawater is mixed in and the seawater enters the shell, it will not be able to make good quality pearls, so there is a drawback that ordinary heating devices cannot be used. Therefore, there is no choice but to put the shell into the shellfish in the natural seawater in the appropriate temperature described above, and the workable period is only for a very short period, so the working conditions are extremely strict, and these problems can be solved. There is a strong demand in the field.

The present invention provides a constant temperature heating device for seawater that solves the above-mentioned conventional problems.

[0005]

[Means for Solving the Problems]

 The constant temperature heating device for seawater according to the present invention, which solves the above technical problems, is described as follows. It consists of a seawater heating tank installed and installed, and the inside surface of the seawater heating tank that comes into contact with seawater and the outside surface of the warm water heating section are characterized by a structure made of a non-metallic material. As a mode of this constant temperature heating device for seawater, an air nozzle made of a non-metallic material intended for seawater convection, seawater agitation, and oxygen supplementation to seawater is provided inside the seawater heating tank. Sometimes.

[0006]

[Action]

 The seawater constant temperature heating device of the present invention having the above-described configuration is mainly composed of a seawater heating tank internally equipped with a warm water heating section for passing hot water, and the hot water heating section and the seawater heating tank are both Since the part that comes into contact with is made of a non-metallic material, low temperature natural seawater of 10 ℃ to 12 ℃ is filled from the supply port, and low temperature water of 25 ℃ to 30 ℃ is passed through the warm water heating section. Then, the natural seawater in the seawater heating tank is gently heated to a suitable temperature of 15 ° C or the like to be heated to a constant temperature, and the suitable temperature and constant temperature of the seawater can be supplied to a shellfish culture tank or the like.

Since the above-mentioned heated seawater contacts only non-metallic materials that are not corroded by the seawater, the seawater is not contaminated due to salt corrosion, and the heated seawater is heated by contacting the heated water heating section. Since the surface of the warm water heating unit itself reaches only a low temperature that is slightly higher than the optimum temperature to be heated, the heated sea water becomes high in temperature at a partial moment and the bacterium is heated. It is possible to supply high-purity suitable temperature seawater with little impurities and corrosive substances to the shellfish aquarium etc.

[0008]

【Example】

 Hereinafter, a detailed description will be given based on examples. Referring to FIG. 1 showing one embodiment of the present invention, the constant temperature heating device of seawater of this embodiment is applied to shellfish culture for nucleating work of pearl oysters, and is made entirely of resin material. The formed hollow cylinder-shaped seawater heating tank 1 is the main part. The seawater heating tank 1 is provided with a seawater supply port 3 for pumping up natural seawater and injecting it from the upper part, and a seawater outlet 4 provided on the peripheral wall near the bottom part, and in the hollow part. , A warm water heating part 2 for winding hot water by winding a resin pipe in a coil is installed internally, and this warm water heating part 2 keeps the natural seawater filled in the seawater heating tank 1 at an appropriate temperature and constant temperature. It is designed to be heated.

More specifically, both ends of the warm water heating unit 2 are connected to a separately installed warm water boiler 5 so that the warm water of about 25 ° C. generated by the warm water boiler 5 can pass through the warm water heating unit 2. The seawater heating tank 1 is entirely made of non-metallic resin, and the seawater 11 filled in the seawater heating tank 1 is characterized in that it does not come into contact with any metal material that is corroded by salt. Then, the water supply pipe 7 is connected to the outlet 4 and guided to the shellfish culture tank 8, and the natural seawater 11 heated to an appropriate temperature of about 15 ° C. in the seawater heating tank 1 is supplied to the shellfish culture tank 8. Then, the shellfish before and after the seeding work is cultured in the shellfish culture tank 8 containing the appropriate temperature seawater 11.

The blanket 10 for fixing the warm water heating unit 2 of this embodiment is made of resin, and the inside of the seawater heating tank 1 with which the seawater 11 comes into contact is entirely non-metallic. Then, near the bottom of the seawater heating tank 1, there is provided an air nozzle section 9 for ejecting outside air supplied from outside the tank, and this air nozzle section 9 promotes agitation and vertical convection of natural seawater in the tank. At the same time, we are trying to supplement oxygen to the natural seawater. Reference numeral 6 in the figure is a temperature sensor for controlling the temperature.

The seawater constant temperature heating device of the above-mentioned embodiment has the above-mentioned effect, is heated to about 15 ° C. suitable for pearl nucleation work, and contains harmful impurities such as metal corrosives and bacteria. Pure pure constant-temperature seawater can be continuously supplied to the shellfish culture tank 8. Therefore, the shellfish culture tank 8 containing the appropriate temperature pure seawater 11 is used to cultivate the shellfish to be nucleated, and the nucleation operation can be performed under good conditions from an early stage when the natural seawater does not reach the appropriate temperature. You can

The seawater constant temperature heating apparatus of the present invention is not limited to the above-described embodiment, and is, for example, a seawater heating tank 1 in which a resin layer is lined on a metal case, or a plate body. There is a change such as forming a plate-like warm water heating section 2 for passing warm water through the gap or changing the position of the water supply port 4.

[0013]

[Effect of device]

 As described above, the seawater constant temperature heating device of the present invention artificially supplies pure natural seawater at an appropriate temperature, so that the pearl shell can be nucleated from a low temperature period of natural seawater. , The workable period of the core insertion work becomes longer, and the workability and work conditions are improved and improved.

[Brief description of drawings]

FIG. 1 is a front view of a constant temperature heating device for seawater according to an embodiment of the present invention.

[Explanation of symbols] 1 seawater heating tank 2 hot water heating unit 3 supply port 4 outlet 5 hot water boiler 6 temperature sensor 7 delivery pipe 8 shellfish culture tank 9 air nozzle unit 10 bracket 11 seawater

Claims (2)

[Scope of utility model registration request] 1. A seawater heating tank having a seawater supply port and a seawater outlet, and a warm water heating unit connected to a hot water boiler and passing warm water inside the hollow portion, the seawater heating tank being in contact with the seawater. The inner surface of the seawater heating tank and the outer surface of the warm water heating unit are
A constant temperature heating device for seawater characterized by a structure formed of a non-metallic material. 2. The constant temperature heating device for seawater according to claim 1, further comprising an air nozzle part made of a non-metallic material.