JPS58207993A - Neutralizer - Google Patents

Abstract

PURPOSE:To make the neutralizer endurable to use over a long time, while simplifying its structure for reducing its cost, by forming the casing of a main body in which a passageway for a liquid to be treated is provided as a unitary body of neutralizing substance to constitute the neutralizer. CONSTITUTION:A drainage way 10 extending from an inlet 10a to an outlet 10b is formed in jigzag manner by alternatively projecting vertical partition walls 9b, 9d as a unitary body from a top-opened one-side wall 9a and the other side wall 9c, respectively, to constitute the casing 9 of a main body. Hereon, said casing is formed as a unitary body by a casting or die-cast forming method using neutralizing substance such as magnesium in a manner such that the side of the inlet 10a is made higher than the side of the outlet 10b. Consequently, highly acidic drain having flowed through the inlet 10a is brought into contact with the wall surface during its passage through the drainage way 10, neutralized therein and then let flow out through the outlet 10b. Thus the material cost, etc. can be reduced, and the main body can be made small in size.

Description

DETAILED DESCRIPTION OF THE INVENTION 1. Concerning incest used for drain treatment etc.

Conventionally, in the T Usagas Shunmonyu 4- shown in Figure 1, raw water heat was exchanged! (13 water passages (2 (upstream + jii + Although it is possible to reduce the yellow condensation surface and improve the thermal durability of the exhaust equipment as the exhaust temperature decreases, it generates a large amount of drain in the auxiliary water exchanger (5) for exhaust heat recovery.
There were problems such as corrosion of the drain discharge passage (7) due to the highly acidic drain water as NO2, etc. in the air dissolves in the drain of the seventh section.■ is a drain receiver.

In order to deal with this problem, the drain outlet passage as shown in 1. 7
Japanese Utility Model Application Publication No. 57-66456 proposes that a neutralizer (8') for neutralizing the acidity of the drain be provided in the middle of the drain.

By the way, the structure of the prayer neutralizer (8) is a rabbit shown in Figure %2, and a corrosion-resistant box-shaped main body case (with a staggered drain flow W!? (11 m) flow 1i 1
11i is juxtaposed with a small piece αυ1... made of neutralized product 94,
The drain flowing in from the drain flow path side (1oak) comes into contact with the small pieces (11), reacts, is neutralized, and flows to the outlet (1oak).
0b) to t.

However, the conventional neutralizer (according to 81rc, the main body case (9) and the small piece α...) are required individually, which increases the cost of materials, labor costs, and assembly costs. The disadvantage is that it cannot be made compact.

The present invention addresses the drawbacks of Vc, and its primary purpose is to simplify the structure of the neutralizer, reduce costs, and make the main body more compact, so that it can withstand long-term use. is the second purpose.

The first feature of the structure of the invention is that the processing liquid flow path is formed and the main body case is integrally molded with a neutralizing material.
What is the wall thickness on the upstream side of the ft path? The second feature is that it is thicker than the downstream 11.

The first feature of the structure is that there is no need for a small piece made of a neutralizing substance separate from the main body case that has the aNw flow path, which reduces material costs, processing costs, and assembly costs compared to conventional examples. If this can be done, the diameter of the UiC flow path can be reduced, and the main body can be made more compact. Furthermore, due to the second feature, the reaction with the processing liquid is active on the upstream side of the processing liquid i path, and there is a lot of melting and adhesion on the processing liquid flow path wall, but the wall thickness on the upstream side is thicker. The treatment liquid flow path length can be maintained at a substantially constant length over a long period of time, and the neutralization reaction can be maintained at a good VC, which has a great effect.

An embodiment of the zero dust watch will be described with reference to FIG. 6, 1ζ. (9) is a vertical partition wall (9b) from one side wall (9a) with an open top end,
By alternately and integrally protruding vertical partition walls (9d) from the other side wall (9C), a staggered drain flow path from the inlet (10b) to the outlet (10b) VC was formed. The main body case is integrally formed by casting and die-casting using a neutralized substance of magnesium J.
For example, as shown in FIG. 1, the IC#ji is diagonally arranged in the water heater main body so as to be higher than the side.

Therefore, the highly acidic drain flowing in from the inlet (10a) comes into contact with the wall surface while passing through the drain flow path 0I, is neutralized by a neutralization reaction, and flows out from the outlet (10b). Processing costs and assembly costs are reduced, and costs can be reduced, and the main body can be made more compact.

Next, what is shown in FIG. 4 is another embodiment of the present invention, in which a lower case having a drain flow path +111 (
9) is integrally molded, but differs in that the wall thickness of the drain channel (II) is gradually thickened from downstream to upstream. The acidity of the upstream is higher, and the reaction with the neutralizing substance is more active, and the neutralizing substance!#ll is more abundant. tT
The neutralizing function can be maintained satisfactorily for a long period of time without causing loss of J and loss of the neutralizing function.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be applied to neutralizing processing liquids in equipment other than boiling water boilers, and can also be applied to a potting machine for neutralizing alkaline processing liquids. Further, in order to prevent drain leakage, a protective case (not shown) may be provided to cover the outside II of the main body case (9).

[Brief explanation of the drawing]

Figure 1 shows the conventional example applied 2! Figures 2 (a) and 4 (b) are respectively an enlarged partially cutaway front view of the main parts of the conventional example, a longitudinal cross-sectional view of direction b (a), and Figures 6 and 4. 1 shows different embodiments of the present invention, each figure (a) is a sectional plan view, each figure (n) is an A-A cross-sectional view, and a BB-B line cross-sectional view of each figure (a). (9)...One body case, +101...Drain flow path.Applicant Sanyo Nawatan Co., Ltd. - 3 other patent attorneys Attorney Shizuka Sano Inu Rii Gill Male 2 Figure 3 9d 9c 9c1 9′ Mod Shokan Horse Map

Claims (1)

[Claims] (1) Neutralization-0 characterized in that the main body case forming the processing liquid flow i% is integrally molded with a neutralizing substance. (2) The wall of the upstream circle 1 of the processing liquid flow path is viewed from the F flow side. The neutralizer according to claim 1, characterized in that the neutralizer is also thickened.