JPS582428Y2 - ion exchange equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ion exchange device such as a condensate desalter that desalinates condensate from boilers, nuclear reactors, etc. using an ion exchange resin.

Conventionally, steam generated in boilers, nuclear reactors, etc., rotates a turbine to recover its energy, and then is cooled in a condenser to become condensed water, which is then fed back into the boiler, nuclear reactor, etc. to generate steam. However, a condensate demineralizer is used to remove impurities such as salt ions that get mixed in during this process.

This condensate demineralizer consists of an ion exchange resin tank having an ion exchange resin layer inside, and removes impurities by passing covered water through the resin layer.

What is particularly required in an ion exchange device using such an ion exchange resin is that the flow of liquid within the container be uniform and free from turbulence.

If the flow becomes uneven and turbulent, resin may fly up or
Fluidity causes uneven thickness of the resin layer, leading to deterioration of ion exchange performance such as desalination.

For example, spherical condensate demineralization towers used in boilers, nuclear reactors, etc. do not have a straight body above the resin layer compared to cylindrical demineralization towers, and the freeboard volume is relatively small, so the inflow from the top of the tower It is extremely difficult to distribute the inlet fluid in a uniform, undisturbed flow over the entire cross section of the column.

Conventionally, as an inlet fluid distribution device used in a desalination tower using this type of spherical container 1, as shown in FIG. It consists of a distribution plate 3 made of a plate, and a water spray plate 4 made of a planar perforated plate provided below it. If the relationship is out of the optimum state, most of the fluid will pass through the atrium without being decelerated and distributed by the distribution plate 3, causing a phenomenon. It ejects forcefully in a radial manner.

In such a state, it is difficult to make the flow uniform over the entire cross section of the tower using only the one-stage water spray plate 4 provided below the distribution plate 3.

5 is an outlet, 6 is a screen, and 7 is a resin layer.

This invention was developed to solve the above-mentioned problems, and by replacing the conventional distribution plate and installing a packet type distributor in this part, and in combination with the conventionally used watering plate, the water is uniformly distributed within the ion exchange equipment. The object of the present invention is to provide an ion exchange device that can form a stable liquid flow without turbulence.

The present invention includes a nearly spherical container containing an ion exchange resin, which has a liquid inlet at the upper end, a liquid outlet at the lower end, and a packet-type distributor inside the liquid inlet. The distributor is provided with a collision plate without holes in a portion facing the inflow port, and a perforated plate is formed between the periphery of the collision plate and the inner surface of the container, This is an ion exchange device characterized by having a distribution plate supported substantially horizontally below the distributor.

To describe an embodiment of the present invention with reference to the drawings, as shown in FIG. 2 or 3, a packet type taste repeater 8 is provided inside the inlet 2.

The packet type distributor 8 has a hemispherical or polygonal pyramidal or conical perforated plate 9 with a notched top in order to distribute the inlet fluid more uniformly, and the bottom facing the inlet 2 has a diameter d1. A collision plate 10 is provided.

If the part directly exposed to the flow of the inlet fluid is made of a perforated plate, the inlet fluid will blow out, so this part of the collision plate 10 is not perforated.

The diameter d0 of the collision plate 10 is approximately (0.5 to 1.5) d relative to the diameter d of the inlet 2.

The entire flow of the inlet fluid at the collision plate 10 becomes a radial jet flow along the collision plate 10, but by the perforated plate 9 of the distributor, this jet flow is dispersed over almost the entire area of the perforated plate 9 and discharged.

The sprinkler plate 4 is therefore supplied with a fairly evenly distributed flow, and by passing through the sprinkler plate 4 a more uniform flow can be obtained.

The present invention includes a nearly spherical container that can accommodate an ion exchange resin, has a liquid inlet at the upper end of the container, a liquid outlet at the lower end, and a packet type distributor inside the liquid inlet. The distributor is provided with a collision plate without holes in a portion facing the inlet, and a perforated plate is formed between the periphery of the collision plate and the inner surface of the container, By having a distribution plate supported almost horizontally on the underside of the distributor,
It equalizes the flow inside the container, allows the liquid to flow uniformly through the resin layer with little disturbance, and enables effective ion exchange.It also has a wide tolerance range for changes in the liquid flow rate, and has a wide range of applications. We can provide high performance ion exchange equipment,
This has an extremely large practical effect.

[Brief explanation of the drawing]

FIG. 1 is an explanatory cross-sectional view showing a conventional example, and FIGS. 2 and 3 are explanatory cross-sectional views showing different embodiments. 1... Container, 2... Inlet, 3...
...Distribution board, 4...Water plate, 5...
Outlet, 6...Screen, 7...Resin layer, 8...Distributor, 9...
...Perforated plate, 10...Collision plate.

Claims (1)

[Scope of utility model registration request] 1. A nearly spherical container capable of containing an ion exchange resin is provided, a liquid inlet is provided at the upper end of the container, a liquid outlet is provided at the lower end of the container, and a packet type repeater is installed inside the liquid inlet. A collision plate having no holes is provided in a portion facing the inlet, and a perforated plate is formed between the periphery of the collision plate and the inner surface of the container. . An ion exchange device comprising: a dispersion plate supported substantially horizontally below the sample repeater. 2. The device according to claim 1, wherein the collision plate has a substantially circular shape, and its diameter is 0.5 to 1.5 times the diameter of the inlet.