JPH04367488A - Glass lining tank structure with heatexchanger - Google Patents

Abstract

PURPOSE:To obtain a glasslining tank having a high heat-exchanging efficiency and being easily fabricated by directly providing a heatexchanger at the outer peripheral face surrounding the tank body and by carrying out the welding work on fitting the heatexchanger before forming the glass lining layer. CONSTITUTION:In a heatexchanger 2 surrounding a tank body 1 at the peripheral face, an outer cover plate 3 with a small heat capacity and also molded groove lines is welded at the outer peripheral face to form passages 4 between that and the outer peripheral face of the tank. After the outer cover plate 3 is welded, a glass lining layer 5 is formed inside the tank.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a glass-lined tank equipped with a heat exchanger used in the production of sake, etc.

0002

[Prior art] In the sake manufacturing process, rice koji is added to the sake base.
Management of the moromi from the preparation by adding steamed rice and water to the upper tank (separating the moromi into sake and sake lees), settling of the lees contained in the upper tank, and waiting for the flavor to mature. Many tanks are used for pasteurizing sake to sterilize it, as well as storing sake for six months to a year to mature its flavor.

[0003] Hitherto, metal glass-lined tanks having a glass lining layer of a predetermined thickness formed on the entire inner surface have been widely used as tanks used in the above-mentioned sake manufacturing process.

[0004] When manufacturing this glass-lined tank, the formation of the glass lining layer was conducted in accordance with the JIS standard (JIS standard).
IS R4201), and the following methods are adopted.

(1) Finish the inner surface of the tank to a clean surface by sandblasting.

(2) After cleaning, a glassy glaze for undercoat is uniformly applied to the inner surface of the tank, and the glaze is fired in a heating furnace.

(3) After taking it out of the heating furnace and waiting for it to cool, apply a glassy glaze for top coating on the fired layer of glassy glaze for bottom coating in the same manner as for the glassy glaze for bottom coating. Firing is repeated multiple times to form a glass lining layer of a predetermined thickness.

[0008] Furthermore, in a glass lined tank,
A heat exchanger is attached to the tank for the purpose of thermal management of the contents.

FIG. 1 is an overall view of a glass-lined tank with a heat exchanger.

In the figure, 1 is a metal tank body;
It is installed on pedestal A. Reference numeral 2 denotes a heat exchanger that surrounds the tank body and is provided on the outer circumferential surface of the tank, and this heat exchanger 2 has a mantle plate 3 formed with multiple grooves attached to the outer circumferential surface of the tank to form a flow path 4. (described later), and a medium such as hot water or cold water for heat exchange is made to flow through the flow path 4 to perform heat exchange with the contents in the tank via the tank wall.

A glass lining layer 5 (described later) is formed on the inner surface of the tank body 1 by the method described above. Since the application of glaze, firing by high-temperature heating, and cooling are repeated after application of each glassy glaze, the presence of a mantle plate 3 attached to the outer circumferential surface of the tank is necessary for manufacturing a glass-lined tank with a heat exchanger. The following method is adopted in order to create a uniform glass lining layer 5 in all parts without any adverse effects on the firing of the glassy glaze and without any uneven firing on the inner surface of the tank.

(1) As shown in FIG. 3(a), before forming the glass lining layer 5, a sealer plate 6a, which surrounds the tank body 1 and forms the side wall of the mantle plate 3, is placed at a predetermined position on the tank outer circumferential surface. After the glass lining layer 5 is formed, the flat mantle plate 3 is welded to both the sealer plates 6a and 6b, and a flow path 4 is formed between the sealer plate 6b and the outer peripheral surface of the tank. Form.

(2) As shown in FIG. 3(b), the mantle plate 3 formed with multiple grooves is welded onto the base plate 7 to form a flow path 4 between the base plate 7 and the mantle plate 3. A base plate 7 is bonded to the outer peripheral surface of the tank using heat transfer cement 8.

[0014]

However, in the configuration shown in FIG. 3(a), the welding of the sealer plate to the outer peripheral surface of the tank and the welding of the mantle plate to the sealer plate are performed by forming the glass lining layer. It has to be done separately before and after, which makes the work process complicated.

In addition, in the configuration shown in FIG. 3(b), the welding work on the outer circumferential surface of the tank can be omitted, but after forming the glass lining layer, a base plate is attached to the outer circumferential surface of the tank using heat transfer cement. Each part must be adhered uniformly and closely along the outer circumferential surface, which is not only difficult, but also the presence of the base plate and heat transfer cement layer inhibits heat transfer when used in tanks. heat exchange efficiency.

The present invention has been made in view of the above points, and an object thereof is to provide a glass-lined tank equipped with a heat exchanger that is easy to manufacture and has high heat exchange efficiency.

[0017]

[Means for Solving the Problems] The gist of the present invention for achieving the above object is that a heat exchanger that surrounds a tank body and is provided on the outer peripheral surface of the tank has a heat capacity that is formed by forming grooves. A small mantle plate is welded to the outer circumferential surface of the tank to form a flow path between the outer circumferential surface of the tank and a glass lining layer is formed on the inner surface of the tank after welding the mantle plate to the outer circumferential surface of the tank. It has a glass-lined tank structure with a heat exchanger.

[0018]

[Function] The outer shell plate welded to the outer circumferential surface of the tank that constitutes the heat exchanger reduces the heat capacity, so the presence of the outer shell plate has little effect on the formation of the glass lining layer on the inner surface of the tank after welding the outer shell plate. not give. A flow path is formed between the outer circumferential surface of the tank and the mantle plate, and when the tank is used, the medium flowing in the flow path directly contacts the outer circumferential surface of the tank to perform heat exchange. The heat exchange efficiency is high because it is also thin.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings.

The basic structure of the present invention is the same as that of the glass-lined tank with a heat exchanger shown in FIG. 1 described above.

In the embodiment, the mantle plate 3 attached to the outer peripheral surface of the tank is formed by forming multiple grooves, and is made of a plate material with a small heat capacity.

However, in the present invention, the attachment of the mantle plate 3 to the outer peripheral surface of the tank is carried out before the formation of the glass lining layer 5, and the edge of the mantle plate 3 is completely attached directly to a predetermined position on the outer peripheral surface of the tank. The circumference is welded 9a, and the plate surface portions that contact the outer circumferential surface of the tank between the grooves are spot welded 9b at a predetermined interval to form a flow path 4 between the grooves and the outer circumferential surface of the tank. do.

When the tank of the present invention having the above configuration is used, for example, in low-temperature fermentation where strict temperature control is required, when cooling water is passed through the flow path 4 as a refrigerant, the inside of the flow path 4 is heated. Cooling water comes into direct contact with the outer circumferential surface of the tank, and heat exchange occurs through the tank wall.

[0024]

[Effects of the Invention] According to the present invention configured as described above, the following effects can be achieved.

(1) In order to surround the tank body and provide the heat exchanger on the tank outer circumferential surface, welding of the mantle plate to the tank outer circumferential surface can be done at one time, which reduces manufacturing man-hours and costs.

(2) Since the mantle plate welded to the outer circumferential surface of the tank reduces the heat capacity, the presence of the mantle plate has almost no effect when forming a glass lining layer on the inner surface of the tank after welding the mantle plate. Can be shaped evenly.

(3) Since the mantle plate is directly welded to the outer circumferential surface of the tank, there is no need for heat transfer cement, etc.
In addition, the heat exchange medium flowing in the flow path directly contacts the outer circumferential surface of the tank to perform heat exchange, resulting in high heat exchange efficiency.

(4) Since the thickness of the tank body can be made thinner, heat conductivity is improved.

[Brief explanation of the drawing]

FIG. 1 is an overall view of a glass-lined tank with a heat exchanger, which constitutes the basic structure of the present invention.

FIG. 2 is a vertical cross-sectional view of the main parts of the tank of the present invention.

[Fig. 3] (a) and (b) are vertical cross-sectional views of main parts of a conventional tank.

[Explanation of symbols]

1...Tank body 2...Heat exchanger 3...Cloak plate 4...Flow path 5...Glass lining layer

Claims (1)

[Claims] [Claim 1] A heat exchanger that surrounds the tank body and is provided on the outer circumferential surface of the tank is constructed by welding a mantle plate with a small heat capacity formed with grooves to the outer circumferential surface of the tank to form a flow path between the outer circumferential surface of the tank and the outer circumferential surface of the tank. A glass-lined tank structure with a heat exchanger, characterized in that a glass lining layer is formed on the inner surface of the tank after the outer plate is welded.