JPS5941796A - Shell and plate type heat exchanger - Google Patents

Abstract

PURPOSE:To prevent heat transfer efficiency form deteriorating, by a method wherein working on a plate is made unnecessary by dividing a duct in a container by an appropriate number of partition plates having at least one connecting hole each and a flow speed is kept constant by interposing only the plate appropriately. CONSTITUTION:As for a heat exchanger element 2, a hollow chamber 2c is formed inside the element 2 by welding circumferences of plates 2a and 2b each of which is a set of two plates and through holes 6 and 7 are provided at the top and bottom. Each of the heat exchanger elements 2 is piled up in a large number on the circumference of the top and bottom through holes 6 and 7 through O ring packings 8 and 9, supported by supporting bars 10 and 11 provided on the centers of both side walls 1a and 1b of a container 1, one side end plate 1c of the container 1 is tightened by a tightening bolt 12 and welded to an end plate 1d of the other side by pressure. A fluid, such as water is streamed in the container 1 through leading-in opening 4, which is entered into a next room from a connecting hole 15 of a partition plate 3 through a space between each of heat exchanger elements 2 and discharged form a leading-out opening 5.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to improvements in shell-and-plate heat exchangers.

Due to its structure, when the flow rate of the fluid flowing through the container decreases, this shell-and-plate heat exchanger
The flow rate inside the container decreases.

There is a problem that causes a decrease in heat transfer performance.

In order to eliminate the above-mentioned problems, conventionally, the flow rate was maintained at 15:1 by modifying the -C grade according to the flow of fluid passed through the container.

However, with this, it takes a lot of time and effort to make the plate.
It had the drawback of being expensive.

In view of the above-mentioned drawbacks of the conventional technology, we have developed a system that can solve this problem quickly. Ci4'
The details are as follows.

Figure 7 and Figure 2 show O-r, +11 is the container, +21
rli heat exchange element, (3) is a partition plate.

The container (1) is sealed tightly and has an inlet for one fluid, such as water, at its upper part (4) and an outlet (5) at its lower part.

The heat exchange element (2) is shown in Fig. 3 (-η, 2 plates/set) (2a +61
[Has 71.

Each heat exchange element (21 is stacked in large numbers around the upper and lower through holes F61 +71 via O-ring banking [8) +91, and is stacked on both side walls (1a) (111I) in the container 111.
The support bar (101Lll+) provided in the center of the
1, the end plate (1d) is pressed against the other end plate (1d).

The stacking and tightening of each of the heat exchange elements (2) may be performed independently of the container [11].

The end plate (10) of the container +11 is provided with an inlet 03) and an outlet 03 for flowing the other fluid, such as a fluorocarbon, into the hollow chamber (2C) of each heat exchange element (2). .

The partition plate (3) has a shape that fits inside the container 111, as shown in FIG. It has a hole ua n7) 2 at the same position as the through hole +61 +71 of the container +11, and the both side walls (laX
Cut out the notches 774 (3a) (3b) that fit 1a into the support bar lb).

At the inner center of each heat exchange element 12), as shown in Figure 1, support bars (lO
) There is a cutout groove (za) (2e) that fits into the circle.

Fluid such as fluorocarbon is introduced into the hollow chamber (2C) of each heat exchange element 12) from the inlet 03), branches into the hollow chamber (2C) of each heat exchange element (2), and is introduced into the hollow chamber (2C) of each heat exchange element (2). Exit port 4)
◎ Fluid such as water flows into the container (1) from the inlet (4), passes between each heat exchange element (2), and enters the communication hole 11 (5) of the partition plate (3). As shown in Figure 1, the partition plate 13) that enters the next room from
The number of these installed is increased or decreased depending on the flow rate of the fluid flowing into the container (11). Figure 7 shows an example where the flow rate of fluid flowing into the container (1) is 73. In this case, two partition plates (3) are used to close the container 1.
11 is divided into three equal parts to form three buses. In this case, since the flow rate of the fluid is /3, by making the flow path W (area also /3) in the container (1), a decrease in the flow velocity can be prevented, and a decrease in heat transfer performance can be prevented. It will be done.

In this way, K, the flow rate of the fluid flowing through the container (1) is /2, /3, /15,...1/.

In this case, (n-1) partition plates (3) may be used to divide the inside of the container +11 into n equal parts. In addition, by appropriately setting the opening area and number of the communication holes l15) provided in the partition plate (3), the flow that is not divisible by a quintillion number can be made to be close to 1 or more.

As explained above, this invention allows two sheets/
A heat exchange element is welded around the grate to form a chamber inside, and a heat exchanger element is provided with all through holes at the top and bottom, and a large number of heat exchange elements are stacked and installed around each of the upper and lower through holes with O-ring banking all through. , a shell-and-plate heat system in which one fluid is circulated from outside the container into the hollow chamber of each heat exchange element, and the other fluid is circulated inside the container to perform FA exchange outside the circle of each heat exchange element. In the Chimata vessel, the flow path in the container is designed so that the flow rate of the fluid from the inlet into the container to the outlet is always constant depending on the amount of fill of the other IL body that is made to flow in the container. , an appropriate sheet with at least seven string holes 7. Since it is divided by a partition plate, there is no need to make any modifications to the plate, and the advantage is that the flow velocity can be kept constant and a decrease in heat transfer performance can be prevented by interposing the partition plate appropriately between the eyes.

[Brief explanation of drawings]

Fig. 7 shows an example of the present invention; Fig. 3 is a vertical cross-sectional view of an air-and-plate heat exchanger; Fig. 3 is a cross-sectional view taken along the line shown in green in Fig. 1; and Fig. 3 is an enlarged cross-sectional view of a heat exchange element. , FIG. V is a front view of the partition plate. 11) Container, 12+-- heat exchange element, (3) bone partition plate. Hide Ehara -+l-11F Engineering

Claims (1)

[Claims] fil In a sealed container, weld the circumferences of two plates/set to form a hollow chamber inside °C, and install a heat exchange element with through holes at the top and bottom, respectively, by OIJing around the top and bottom through holes. Multiple CCs are installed in parallel via banking, and one fluid is circulated from outside the container into the hollow chamber of each heat exchange element, and the other fluid is circulated inside the container to exchange heat between the inside and outside of each heat exchange element. In the shell-and-plate heat exchanger, the flow path inside the container is adjusted so that the flow rate from the inlet to the outlet of the fluid is always constant depending on the flow rate of the other fluid flowing through the container. A shell-and-plate heat exchanger, characterized in that the heat exchanger is divided by an appropriate number of partition plates each having at least one communication hole.