JPS5941409Y2 - Heat exchanger in closed cooling tower - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a closed type cooling tower in which a large number of cooling pipes installed between two opposing eternal chambers are prevented from leaking by using special packing. This relates to a heat exchanger that is compact and easy to assemble.

Conventional technology and its problems Traditionally, closed type cooling towers have been adopted depending on the conditions of the installation location, but in this closed type cooling tower, primary circulation circulates between the condenser and the tower to cool the condenser. A large number of cooling pipes of the required length are used to flow and cool the primary circulating cooling water so that the cooling water does not mix with the secondary cooling water circulating within the cooling tower.
Moreover, both ends of this cooling pipe are integrally joined to the wall plates of the water cooling chamber by welding.

However, since there are a large number of cooling pipes, there is a drawback that welding them requires a lot of labor and time.

A method has also been proposed in which the tip of the pipe is inserted into the heat exchange chamber and the outer circumference of the pipe is sealed with a trowel.

For example, Utility Model No. 52-108667, No. 50-62140
There is a publication.

However, with this O-link type, the area that comes into pressure contact with the pipe's outer circumferential surface is small, making it difficult to secure the pipe with just the 01J ring and requiring other methods to secure the pipe, resulting in a complicated structure at the end of the pipe. , which requires a lot of effort to assemble.

Means to Solve the Problems In view of this, the present invention has developed a ring-shaped packing with double inner and outer pipes that strongly holds the outer circumference of the water cooling pipe when the tip of the water cooling pipe is inserted into the water cooling chamber. Interposed between the outer peripheral surface of the water cooling pipe and the inner peripheral surface of the pipe through hole of the water cooling chamber,
Furthermore, a ring-shaped wedge is tightly fitted into the groove of this ring-shaped packing to firmly hold the pipe and fix it in the water cooling chamber, while also preventing water leakage.

Embodiment Fig. 1 is a cross-sectional explanatory diagram of a state in which a large number of water-cooling pipes are installed between opposing water-cooling chambers, and Fig. 2 shows the work order of fixing the water-cooling pipes to the water-cooling chambers using the link-shaped packing of the present invention. It is an explanatory diagram.

The present invention will be explained below based on FIGS. 1 and 2.

In the figure, 1 and 2 are the water cooling chambers of the closed cooling tower.
These water cooling chambers 1 and 2 are in the form of a sealed box having a required internal volume, and are opposed to each other at a required interval.
There are two or more partition plates 1a, 2av trowel partitions in the vertical direction inside 2, and a water supply port 3 to which primary circulating cooling water heated by a condenser or the like is supplied above the water cooling chamber 1. A discharge port 4 is provided below this water cooling chamber 1 or below the other water cooling chamber 2 for heat exchange, that is, discharging the cooled cooling water and supplying it to a condenser, etc., and the opposite water cooling chamber 1,
A large number of water-cooled pipes 5 are arranged between the two, and secondary cooling water is sprinkled on the outer surface of the water-cooled pipes 5 to perform desired heat exchange.

The water cooling chamber 1.2 and the water cooling pipe 5 are connected to the water cooling chamber 1.
The inside of the pipe hole drilled in the inner wall plate 2 is fitted and supported through a specially shaped backing 6 for preventing water leakage, and this packing is shown in detail in FIG.

The next explanation will be based on Figure 2 here.

A pipe through hole 8 with a diameter larger than the diameter of the water cooling pipe is bored in the inner wall plate 7c of the water cooling room, and inside the hole 8, an inner and outer double pipe is connected at one end with rubber, synthetic rubber, synthetic resin, etc. A link-shaped gasket 6 of the formula is fitted and fixed.

At this time, the edge of the pipe through hole in the inner wall plate is held between the collar 6a and the protrusion 6b provided on the outer periphery of the outer tube 6c of the packing 6.

A water cooling pipe 5 is passed through the inner pipe 6d of the packing, and the end of the pipe 5 is opened into the water cooling chamber G, and a groove 6e between the inner and outer pipes 6a and 6b of the packing is made.
The inner σ-ring shaped wedge 6f is tightly fitted and fixed.
The fitting of this wedge (the gap between the outer circumferential surface of the water-cooled pipe and the pipe through-hole is completely closed with the ring-shaped packing 6) to prevent water leakage.

Further, to prevent the wedge from coming out, a leaf spring 6g is fitted and fixed on the outer side of the water cooling pipe and around the outer periphery of the water cooling pipe.

Effects of the invention According to the invention, the water cooling pipe is inserted into the water cooling room through an inner and outer double pipe type link-shaped packing that is designed to hold the outer periphery of the tip of the water cooling pipe installed between the water cooling rooms. Because the ring-shaped wedge is tightly fitted into the groove of the link-shaped packing, this special packing prevents water leakage and can firmly hold and fix the water cooling pipe.
It has a simple structure, is extremely easy to assemble compared to the conventional welding type, can easily prevent water leakage, and can be provided at a low cost.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a closed cooling tower, and FIG. 2 is an explanatory diagram showing the installation of water cooling pipes. 1.2...Water cooling room, 3...Water inlet, 4
...Drain port, 5...Water cooling pipe, 6...
...Putskin, 7...Inner wall board, 8...
・Pipe through hole.

Claims (1)

[Scope of utility model registration request] In a heat exchanger for a closed cooling tower, in which a large number of cooling pipes are arranged at desired intervals between opposing water cooling chambers, and both ends of the cooling pipes are inserted and supported in the water cooling chamber, the water cooling pipe diameter is A water cooling chamber with a large number of larger diameter pipe through holes drilled in the inner wall plate, a water cooling pipe, and an inner and outer double pipe that fits into the pipe through hole and firmly holds and fixes the outer periphery of the end of the water cooling pipe. It consists of a type gasket, and this gasket is connected to an outer tube with a flange and protrusions that hold the surface of the pipe through hole, and an inner tube that holds the outer circumferential surface of the pipe through a link-shaped groove. A heat exchanger in a closed cooling tower in which link wedges are fitted in the grooves.