JP2001241764A - Neutralizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a neutralizer capable of preventing the leakage of exhaust gas and capable of being miniaturized. SOLUTION: A filling space 2 having a substantially U-shape trap structure for filling a neutralizing agent 1 is provided in the neutralizer. One side upper end of the substantially U-shaped filling space 2 is provided with the inlet port 3 of drain water discharged out of a heat exchanging unit, while the other side upper end of filling space 2 is provided with the outlet port 4 for discharging neutralized treated water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neutralizer for neutralizing acidic drain water generated by a heat source device that also recovers latent heat.

[0002]

2. Description of the Related Art Generally, in a heat source apparatus which recovers latent heat, when recovering the latent heat, combustion exhaust gas is condensed to generate acidic drain water. For this reason, it is necessary to neutralize the acidic drain water and drain it, and the drain water is passed through a neutralizer to neutralize and drain the treated water.

Conventionally, this type of neutralizer has been disclosed in
This neutralizer has a drain inflow chamber, a storage chamber connected to the side of the drain inflow chamber, and a siphon connected to the side of the storage chamber. are doing. A drain drain pipe is introduced into the drain inflow chamber such that the lower end of the drain drain pipe reaches the bottom of the drain inflow chamber.
The drain water flowing into the drain inflow chamber overflows into the storage chamber. The storage chamber is filled with a neutralizing agent so as to neutralize drain water flowing into the storage chamber. The siphon drains by the action of the siphon when the water level in the storage room becomes higher than a predetermined level. Then, the drain water drained from the drain drain pipe flows into the drain inflow chamber, and the drain water overflowing from the drain inflow chamber is stored in the storage chamber and neutralized, so that the water level in the storage chamber reaches a predetermined height. Then, the treated water is drained by a siphon.

[0004]

However, when drain water is drained from the drain drain pipe, a part of exhaust gas is also included. Conventionally, however, the drain drain pipe is immersed in the drain water flowing into the drain inflow chamber. Since the structure does not allow the exhaust gas to leak, the sealing distance of the exhaust gas is short and the exhaust gas may leak. Further, there is a problem that the neutralizer becomes large because it is composed of the drain inflow chamber, the storage chamber, and the siphon.

[0005] The present invention has been made in view of the above description, and has as its object to provide a neutralizer that can prevent leakage of exhaust gas and can be reduced in size.

[0006]

In order to solve the above-mentioned problems, a neutralizer A according to a first aspect of the present invention has a loading space 2 having a substantially U-shaped trap structure for loading a neutralizing agent 1 therein. And an inlet 3 for drain water discharged from the heat exchange unit at one upper end of the substantially U-shaped loading space 2 and an outlet for discharging neutralized treated water at the other upper end of the loading space 2. 4 is provided. Drain water enters the charging space 2 from the inlet 3, the drain water is neutralized by the neutralizing agent 1 charged in the charging space 2, and the neutralized treated water is discharged from the outlet 4. At this time, the exhaust gas is sealed by the water filled in the loading space 2 of the U-shaped trap structure, and the sealing distance of the exhaust gas is long, so that there is no possibility that the exhaust gas leaks. Further, since the main body of the neutralizer A is constituted only by the loading space 2 in which the neutralizing agent 1 is loaded, the overall size can be reduced. Further, since the U-shaped charging space 2 is charged with the neutralizing agent 1, the residence time of the drain water can be increased, and the processing time by the neutralizing agent 1 can be increased.

The neutralizer A according to a second aspect of the present invention is the neutralizer A according to the first aspect, wherein the partition 5 extending from the upper end to the lower end at the center in the width direction is provided in a vertically-elongated rectangular parallelepiped container 6 having a hollow interior. By providing the neutralizing agent 1, a substantially U-shaped loading space 2 for loading the neutralizing agent 1 is formed. Container 6
A substantially U-shaped loading space 2 can be easily formed only by partitioning the inside with a partition 5, and even with a U-shaped loading space 2, a sufficient capacity for loading the neutralizing agent 1 can be secured and the processing capacity can be increased. It can be downsized while improving.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a description will be given of an example of a neutralizer in a water heater as an example of a heat source device.

The water heater has, for example, a structure as shown in FIG. A burner 9 and a combustion fan 10 are arranged in a lower part in the combustion chamber 8, and an exhaust port 11 is provided in a side part of an upper part of the combustion chamber 8. In the combustion chamber 8, a sensible heat recovery type primary heat exchanger 12a and a latent heat recovery type secondary heat exchanger 12b are arranged. The primary heat exchanger 12a and the secondary heat exchanger 12b are located such that the primary heat exchanger 12a is closer to the burner 9 and the secondary heat exchanger 12b is closer to the exhaust port 11. An inlet pipe 13 for supplying water as the fluid to be heated is connected to one end of the primary heat exchanger 12a, and an outlet pipe 14 for sending heated water is connected to the other end of the primary heat exchanger 12a. It is. A bypass pipe 15 branching from the middle of the inflow side pipe 13 connects the middle of the inflow side pipe 13 and the middle of the outflow side pipe 14. The secondary heat exchanger 12b is connected to the inflow-side pipe 13 at a position on the inflow side from a position where the bypass pipe 15 is branched. In other words, the outgoing line 16 and the inward line 17 connected to the secondary heat exchanger 12 b are connected in series with the inflow side line 13 in the middle of the inflow side line 13.

The operation of the water heater is as described above. The operation is as follows. When the fuel is burned by the burner 9 and water is supplied to the inflow-side conduit 13, the inflow-side conduit 13
Flowing through the secondary heat exchanger 12 through the outgoing line 16
b, and the water flowing through the secondary heat exchanger 12b is heated by exchanging heat so as to recover latent heat from the flue gas.
The water heated by the secondary heat exchanger 12b is returned to the return line 17
The water supplied to the primary heat exchanger 12a via the inflow side pipe 13 and passed through the primary heat exchanger 12a is exchanged and heated so as to recover sensible heat from the flue gas. Hot water heated by the primary heat exchanger 12a is supplied through the outflow pipe 14. When hot water is supplied from the outflow pipe 14, the water in the inflow pipe 13 is supplied and mixed from the bypass pipe 15, so that the temperature of the hot water to be supplied is controlled to a predetermined temperature.

In the above-described water heater, the secondary heat exchanger 12
In order to collect latent heat at b, combustion exhaust gas is condensed to generate strongly acidic drain water, and a drain receiver 18 is provided below the secondary heat exchanger 12b to receive the drain water. The drain water received by the receiver 18 can be drained by a drain drain pipe 19. A neutralizer A is disposed at an end of the drain drain pipe 19, and the drain drain pipe 19 communicates with the inlet 3 of the neutralizer A.

The neutralizer A is formed as shown in FIG. 1, and is mainly composed of a rectangular parallelepiped container 6 which is vertically elongated, flat and hollow. The container 6 is made of a synthetic resin and is formed to be transparent or translucent. A partition 5 is provided in the container 6 so as to extend from the upper end to a position just before the lower end at the center in the width direction of the container 6, and the inside of the container 6 is filled with a substantially U-shaped trapping structure. 2 is formed. An inlet 3 is provided at one upper end of the substantially U-shaped loading space 2, and an outlet 4 is provided at the other upper end of the loading space 2.
Is provided. In the example of FIG. 1, there are two entrances 3 and 2
The drain drain pipe 19 can be connected.
A drain plug 20 is provided below the loading space 2, and a cap nut 21 is detachably attached to the drain plug 20. About U
The neutralizing agent 1 is loaded in the letter-shaped loading space 2 so as to substantially fill the whole. Examples of the neutralizing agent 1 include granules such as magnesium oxide and calcium carbonate. A drain drain pipe 19 is connected to the inlet 3, and a treated water drain pipe 22 is connected to the outlet 4. The neutralizer A has an upper fixed plate 23 and a lower fixed plate 2 for mounting the neutralizer A.
4. An upper mounting piece 25, a horizontal mounting piece 26, a lower mounting piece 27 and the like are provided.

The acidic drain water drained from the drain drain pipe 19 flows into the charging container 2 from the inlet 3, and
The treated water neutralized by reacting with the neutralizing agent 1 in the loading container 2 flows out from the outlet 4 so as to overflow from the outlet 4 and is discharged from the treated water drain pipe 22. At this time, even if the exhaust water is contained in the drain water flowing from the drain drain pipe 19, the exhaust gas is sealed by the water filled in the loading space 2 of the U-shaped trap structure, and the sealing distance of the exhaust gas becomes longer. There is no danger of exhaust leakage. Further, since the main body of the neutralizer A is constituted only by the container 6 having the loading space 2 for loading the neutralizing agent 1, the whole can be miniaturized. Further, since the U-shaped charging space 2 is charged with the neutralizing agent 1, the residence time of the drain water can be increased, and the processing time by the neutralizing agent 1 can be increased. Container 6
A substantially U-shaped loading space 2 can be easily formed only by partitioning the inside with a partition 5, and even with a U-shaped loading space 2, a sufficient capacity for loading the neutralizing agent 1 can be secured and the processing capacity can be increased. It can be downsized while improving. Further, since the inside of the container 6 is partitioned by the partition 5, even if the amount of the neutralizing agent 1 charged is reduced, the retention time of the drain water is long, so that the neutralization processing capacity does not decrease.

[0014]

According to the first aspect of the present invention, a substantially U-shaped trapping structure for loading a neutralizing agent therein is provided, and one upper end of the substantially U-shaped loading space is provided. An inlet for drain water discharged from the heat exchange section is provided at the other end, and an outlet for discharging neutralized treated water is provided at the other upper end of the loading space, so that drain water enters the loading space from the inlet, and enters the loading space. The drain water is neutralized by the loaded neutralizing agent, and the neutralized treated water is discharged from the outlet. The exhaust is sealed by the water filled in the loading space of the U-shaped trap structure. The sealing distance of the exhaust gas is long and there is no danger of the exhaust gas leaking. Also, the neutralizer can be reduced in size as the main body is composed only of the loading space for loading the neutralizing agent. Drain water retention for loading neutralizing agent into U-shaped charging space Those capable of long processing time by neutralizer can long between.

[0015] The invention of claim 2 of the present invention relates to claim 1
In the above, since a partition extending from the upper end to the lower end in the center in the width direction was formed in a rectangular parallelepiped container having a hollow interior and a vertically elongated shape, a substantially U-shaped loading space for loading the neutralizing agent was formed. It is possible to easily form a substantially U-shaped loading space simply by partitioning the inside of the container, and even if a U-shaped loading space is provided, a sufficient capacity for loading the neutralizing agent can be secured and the processing capacity can be secured. It is possible to reduce the size while improving the size.

[Brief description of the drawings]

FIG. 1 shows an example of a neutralizer according to an embodiment of the present invention;
(A) is a plan view, (b) is a front view, and (c) is a side view.

FIG. 2 is a pipeline diagram showing the whole of the water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Neutralizer 2 Loading space 3 Inlet 4 Outlet 5 Partition 6 Container

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F28F 17/00 501 F28F 17/00 501Z (72) Inventor Tetsuji Morita 4-1-1 Hiranocho, Chuo-ku, Osaka-shi No. 2 Osaka Gas Co., Ltd. (72) Inventor Hiroshi Ichikawa Takashi Sangyo 201, Nishi-Kashiwara Nitta, Fuji City, Shizuoka Pref. Co., Ltd. (72) Inventor Naoki Ishii 201 Nishi-Kashiwara Nitta, Fuji City, Shizuoka Prefecture Takagi Sangyo Co., Ltd. F-term (reference) 3L034 BA25

Claims (2)

[Claims] 1. A substantially U-shaped trapping space for loading a neutralizing agent therein is provided, and drain water discharged from a heat exchange unit is provided at one upper end of the substantially U-shaped loading space. And an outlet for discharging neutralized treated water is provided at the other upper end of the loading space. 2. A substantially U-shaped loading space for loading a neutralizing agent by providing a partition extending from the upper end to the lower end at the center in the width direction in a rectangular parallelepiped container having a hollow interior and a vertically elongated shape. The neutralizer according to claim 1, wherein the neutralizer is formed.