JPS6014155Y2 - Plaid heat exchanger - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a gas-to-gas heat exchanger.

Gas-to-gas heat exchangers do not have very good heat transfer efficiency, so they tend to have a large capacity, and there are various problems when processing gas with a large dust content.

An example of a conventional plate cross-flow heat exchanger is shown in Figure 1a.
As shown in b, the gas to be heat exchanged enters from A, undergoes heat exchange, loses the sensible heat it holds, and is discharged from A', while the gas to be heat exchanged enters from B, exchanges heat, gains heat, and exits from B'. .

Between the walls of the plate, heat is transferred from the hot gas side to the cold gas side.

A heat exchanger having such a structure generally has an airtight structure by welding, which makes it difficult to clean the inside of the exchanger.

Taking the above points into consideration, the present invention is a heat exchanger that has a simple structure, is highly reliable at high temperatures, is easy to manufacture and install, and can easily remove dust and other accumulations inside the exchanger during periodic inspections. It provides:

The present invention will be explained below with reference to the drawings.

FIG. 3 is a schematic side view of the plate heat exchanger of the present invention, in which the inner plate heat exchanger 1, which is an assembly of heat exchange plates shown in FIGS. 2a, b, and c, is housed. has been done.

The heat exchanger 1 is a box-shaped assembly consisting of a large number of inner plate type heat exchange plates 4 connected by a gas inlet collecting header 2 and a gas outlet collecting header 3.

This heat exchanger 1 has a support pipe 5 in a part of the header,
The pipes communicate with a gas outlet pipe and a gas inlet pipe, respectively.

The heat exchanger 1 is then installed and assembled on the base as shown in FIG.

The basic body has a base 6 supported on columns 7, around which there is a sealing groove 9 in which a cover 8 enclosing the heat exchanger 1 is fitted in a tight manner.

On the other hand, a sealing material is filled between the inner and outer cylinders on the base, and the heat exchanger 1
A double cylindrical seal groove 10 is provided in which the support pipe 5 is fitted and sealed.

These sealing mechanisms are known, and include, for example, a sand seal using granules such as sand, a seal using an airtight heat insulating blanket-like substance, or a seal using a low melting point metal such as lead.

Note that 11 and 12 are an outlet pipe and an inlet pipe for the gas to be heat exchanged, and 13 and 14 are an inlet pipe and an outlet pipe for the gas to be heat exchanged.

In this heat exchanger, the gas to be heat exchanged enters from the inlet pipe 12, passes through the gap between the exchange plates 4 of the inner plate heat exchanger 1, and flows to the outlet pipe 11.

On the other hand, the gas requiring heat exchange enters from another inlet side 13 and flows to the outlet pipe 14 via the double cylindrical inner pipe line on the base, the collecting header, the exchange plate 4 and the other collecting header.

During this time, heat is exchanged between the two gases via the exchange plate.

The present invention has the above structure, and the base body, the inner plate type heat exchanger, and the exchanger cover are each separated members.

Therefore, the inner plate type heat exchanger is connected via a sealing mechanism to the pipes arranged on the base of the base body that has been installed in advance, and a cover is placed over the exchanger, and the sealing mechanism on the base is used to securely install the inner plate type heat exchanger. Since it can be completed with just one step, the accumulated dust inside the heat exchanger can be easily cleaned by removing the cover or by lifting and removing the inner plate type heat exchanger.

Furthermore, since the heat exchanger of the present invention has a simple structure, it can be manufactured without requiring very high-grade materials, and can be said to be an extremely practical device.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an inner plate heat exchanger. FIG. 2 is an explanatory view of the inner plate type heat exchanger of the present invention; A side view, B a top view, and C a side view in another direction. FIG. 3 is a schematic side view of the present invention. FIG. 4 is a plan view of the base of the present invention. 1...Heat exchange body, 2, 3...Collection header, 4...Heat exchange plate, 5...Support pipe, 6...・Base, 7... Prop, 8
...Cover, 9...Seal groove, 10.
...Double cylindrical seal groove, 11, 12...
・Heat exchange gas outlet pipe and inlet pipe, 13.14...
...Inlet and outlet pipes for gas requiring heat exchange.

Claims (1)

[Scope of utility model registration request] It is composed of three members: a base body, a heat exchange body, and a cover, and each fluid outlet pipe for the heat exchange gas and the heat exchange target gas is connected to the base body by passing through the base of the base body, and the heat exchange body is connected to the fluid outlet pipe for the heat exchange gas and the heat exchange target gas. In order to connect to the fluid outlet pipe using a pipe as a support,
The plate heat exchanger is configured such that the base body is fitted into a double cylindrical seal groove in a through hole on the base, and the cover is fitted into and covers a seal groove provided around the upper edge of the base of the base body.