JPH052080Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a jacket for a tank such as a beer fermentation tank where the temperature of a stored liquid needs to be controlled.

(Prior Art) Regarding jackets for cooling or heating stored liquid in the prior art, there are, for example, the invention of Japanese Utility Model Publication No. 43590/1982 or the invention of Japanese Utility Model Application No. 16555/1988. The jacket disclosed in Utility Model Application No. 60-43590 is
A coil-shaped flow path is formed by wrapping a split-shaped pipe around the outside of the tank.
The jacket disclosed in No. 16555 has a plate material having an L-shaped or U-shaped cross section to form a meandering flow path.

All of the above flow paths are formed as a series of continuous passages that are maintained liquid-tight.

(Problem that the invention aims to solve) In the conventional example, the tank jacket was formed as a continuous flow path, so it was not possible to remove separated air or entrained air dissolved in the heat transfer liquid. This resulted in air pockets in the flow path that impeded the flow of the heat transfer liquid and made it impossible to heat and cool the stored liquid uniformly.

In addition, when replacing the heat transfer liquid, there was also the problem that the liquid remaining in the jacket could not be completely removed.

(Means for solving the problem) In this invention, a plurality of mutually independent jackets are provided along the entire circumference of the outer peripheral wall of the tank body, parallel to the tank axis, and spaced apart in the circumferential direction. The upper edge communicates with a connecting passage, and the lower edge communicates with a header provided with a partition to form a meandering continuous passage, and an air vent passage is provided in the upper part of the jacket and a drainage passage is provided in the header. , aims to provide a tank jacket that solves the above-mentioned problems.

(Function) Each jacket is connected to form one flow path, so the heat transfer liquid does not circulate locally.
Uniform heat conduction is achieved. Since an air vent is provided at the upper end of each jacket, separated air and entrained air will not remain, and the heat transfer liquid will flow uniformly and be easily removed.

(Example) Examples will be described with reference to the drawings.

FIG. 1 is a front explanatory view of the jacket portion, and FIG. 2 is a partially cutaway plan view thereof.

In the figure, 1 is the tank body peripheral wall, 2 is the jacket, and 3
4 is a flat plate, 4 is a communication passage, 5 is a header, 6 is an air vent passage, 7 is a drain passage, 8 is a drain vent, 9 is a partition, and 10 is an air vent.

A plurality of jackets 2 are fixedly provided along the entire outer periphery of the peripheral wall of the tank body, parallel to the tank axis, and spaced apart from each other in the circumferential direction. As shown in FIG. 2, the jacket 2 has a semi-cylindrical, rectangular, or triangular cross-sectional shape, and its opening side edge is welded and fixed to the tank body peripheral wall 1.

In other words, a plurality of mutually independent vertical passages are formed with substantially equal spacing margins. The opening edge at the upper end of each jacket 2 is connected while being sealed by a flat plate 3 formed in an arcuate strip shape along the tank outer peripheral wall 1, and at the same time, the inner peripheral edge of the flat plate 3 is connected to the tank outer peripheral wall 1.
Weld and fix to.

In addition, at the upper end of the jacket 2, as shown in FIG.
An opening 11 is provided by cutting out the upper edge of the opening 11, and a communication passage 4 communicating with the opening 11 is provided. The communication passage 4 is made by welding a communication passage member having an L-shaped cross section to the flat plate 3 on one side and to the tank body peripheral wall 1 on the other side, and welding the end edge to the edge of the opening 11 formed by cutting out the jacket 2. and form it.

Further, the lower end edge of the jacket 2 is formed of an open channel-shaped curved member having a U-shaped cross section provided with a partition 9 so as to communicate with a header 5 whose opening edge is welded and fixed to the tank body peripheral wall 1. In other words, the heat medium liquid is formed to flow in a meandering manner from the jacket 2 located on one side of the plurality of jackets 2 to the jacket 2 located on the other side.

Each jacket 2 communicates with the adjacent jacket 2 at the upper part through the communication passage 4, and each adjacent jacket 2 communicates with the adjacent jacket 2 at the lower part. The jackets 2 are formed so that the heat transfer liquid flows only to the adjacent jackets 2. In other words, it is formed into a single meandering flow path for the heat transfer liquid. In this case, the header 5 may be omitted and the lower part of the jacket 2 may be formed in the same way as the upper structure in which the flat plate 3 and the communication passage 4 are provided.

The cross-sectional shape of the header 5 may be rectangular as shown in FIG. 4, or triangular or semicircular.

In addition, the upper end of the jacket 2 that does not form the communication passage 4 has opposite side edges as shown in FIG.
An opening 12 is created by cutting out a triangular, square, or quarter-arc shape, and an air vent passage 6 having a triangular, square, or quarter-arc cross-section communicating with the opening 12 is formed. do.

As shown in FIG. 6, the air vent passage 6 may be formed of a pipe bent into a U-shape so as to have an open end at the bottom. In this case, the downstream opening end of the air flow is formed at a position lower than the upstream opening end, or a check valve 13 made of a movable cap with an open side or a partially fixed thin film sheet is installed at the downstream opening end. provided in such a way as to prevent backflow of air flow.

Further, the flow area of the air vent passage 6 is formed to be extremely smaller than that of the communication passage 4, so that the short path of the heat transfer liquid is minimized. In this case, a check valve 14 made of a synthetic resin film partially fixed on the upstream side may be provided to prevent short passes. The air collected through the air bleed passage 6 is discharged from a valved air bleed 10 through an air sump 15 provided in the upper part of the jacket 2 forming an outlet.

In addition, the lower end of the partition 9 in the header 5 is cut out in a triangular, square, or quarter-arc shape to form an opening, and the drain of the heat transfer medium is accumulated in the drain pit 17 through the opening. A drain passage 7 is formed so that the drain can be drained through a drain drain 8.

In addition, the drain passage 7 is formed small to minimize the short path of the heat transfer liquid, or a backflow prevention membrane 16 with a synthetic resin membrane, rubber membrane, etc. partially fixed on the upstream side is provided. Formed to prevent short passes.

In this case, the header 5 has a drain flow gradient of 1/10.
It is desirable to mount it at an angle so that the flow gradient is greater than zero.

(Effects) Since this invention is configured as explained above, it produces the effects as described below.

It has a simpler structure than a tank jacket that has headers at the top and bottom to form a meandering flow path, and can significantly reduce production costs. Since the air that obstructs the flow of the heat medium can be separated and recovered, a uniform flow of the heat medium is possible, and effective heat conduction is possible. Since the air inside the jacket can be removed, the pressure increase work during jacket inspection becomes easier and inspection costs can be reduced.

In addition, since a drain is provided, it is extremely easy to remove and insert the heat transfer liquid when changing the set temperature of the stored liquid.

Since it is easy to drain water after the pressure test, it is possible to prevent corrosion that occurs during storage after manufacturing.

[Brief description of the drawings]

Fig. 1 is a front explanatory view of the jacket section, Fig. 2 is a partially cutaway plan view, Fig. 3 is a cross-sectional view taken along line C-C in Fig. 1, and Fig. 4 is a cross-sectional view taken along line B-- in Fig. 1.
B sectional view, FIG. 5 is an AA sectional view in FIG. 1, and FIG. 6 is an explanatory diagram of an air vent passage in another embodiment. 1...tank body peripheral wall, 2...jacket, 3
... Flat plate, 4 ... Connecting passage, 5 ... Header, 6
...Air vent passage, 7...Drain vent passage, 8
... Drain drain, 9... Partition, 10... Air vent.

Claims (1)

[Scope of utility model registration request] A plurality of jackets are provided along the entire circumference of the outer peripheral wall of the tank body, parallel to the tank axis, and spaced apart from each other in the circumferential direction, and a communication passage connecting the upper end edge of the jacket with the lower end edge. A meandering continuous passage is formed with a header with a connecting partition.
A tank characterized in that an air vent passage is provided in the upper part of the jacket, an air vent is provided in the upper part of the jacket at the end part, a drain passage is provided in the header through a part of the partition, and a drain vent is provided in the lower part of the header at the end part. jacket.