JPH0734859A - Drain water treatment equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] In a drain water treatment device that neutralizes drain water separated from engine exhaust gas, the generation of an emulsion that inhibits the activity of a neutralizing agent is prevented. [Structure] Drain water separated from engine exhaust gas is introduced into a container through an inflow port 22, drain water remaining in the container is neutralized by a neutralizing agent, and the neutralized drain water is outflow port. In the drain water treatment device 20 that discharges from the container 23 to the outside of the container, the in-container opening of the inflow port 22 is located above the accumulated water level N of the drain water, and the inflow of the inflow port 22 near the in-container opening is performed. The space 24 is formed so that the drain water does not collide with it, and the space 26 where the neutralizing agent does not enter near the opening of the outlet 23 in the container.
To form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine using apparatus fixedly installed on a base such as an outdoor unit of an air conditioner, to neutralize drain water separated from exhaust gas of the engine and then to the outside. It relates to a drain water treatment device for draining.

[0002]

2. Description of the Related Art In an outdoor unit of an air conditioner having a gas engine driven heat pump, when heat is recovered from the exhaust gas by an exhaust heat exchanger, a drain having an acid content is generated when the temperature of the exhaust gas decreases due to the heat recovery. The water is condensed and separated from the exhaust gas, but if the drain water having this acidic content remains in the device, it will be discharged out of the device immediately because it will shorten the life of the part due to its oxidizing action.

However, since the device is fixedly installed on a foundation such as concrete, the drain water is always discharged to the same place, and even if the amount of the drain water is small, the acidic component is discharged for a long period of time. If discharged as it is, it will adversely affect the installed base at the discharge location.

Therefore, a drain water treatment device in which a neutralizing agent composed of calcite, dolomite, limestone, magnesium, natural coral, etc. is filled in a container is installed below the device, and the drain water is introduced therein. It has been conventionally practiced to neutralize the neutralized water with a neutralizing agent during the retention in the container, and to drain the neutralized drain water from the device to the outside.

[0005]

However, in the above-mentioned drain water treatment apparatus, mayonnaise-like precipitates, so-called "emulsion", may be generated from the drain water in the container. Has a specific gravity close to that of water (having a high water content) and is tacky, and thus may cause a problem that it adheres to the surface of the neutralizing agent and inhibits the activity of the neutralizing agent.

An object of the present invention is to solve the above-mentioned problems of the conventional drain water treatment device,
More specifically, the purpose is to prevent the generation of emulsion by preventing the stirring action of drain water in the container.

[0007]

In order to solve the above-mentioned problems and to achieve the object, the present invention introduces drain water separated from exhaust gas of an engine into an inside of a container through an inflow port. In a drain water treatment device that neutralizes drain water that is accumulating with a neutralizer and discharges the neutralized drain water from the outlet to the outside of the container, the opening inside the container at the inlet is higher than the accumulated water level of the drain water. A space is formed near the opening inside the container at the inflow port to prevent collision of the inflowing drain water, and a space near the opening inside the container at the outflow port where no neutralizer enters. It is characterized by forming a part.

[0008]

[Operation] According to the above-mentioned configuration, since the space is formed near the opening in the container of the outlet, the neutralizing agent that is dissolved and becomes small to neutralize the drain water is formed. Since the fragments do not enter the outlet, the neutralizer does not cause clogging of the outlet.

As a result, the accumulated water level of the drain water in the container does not rise abnormally due to the clogging of the outlet, and the opening inside the container of the inlet is always maintained above the accumulated water level of the drain water. Therefore, it is possible to maintain a state in which the drain water that has accumulated in the container is not agitated by the drain water that has flowed in from the inflow port.

Furthermore, since a space is formed near the opening inside the container at the inflow port, the inflowing drain water may collide with the neutralizing agent or the wall of the container and stir itself. Absent.

The drain water introduced into the container has an oil content and an acidic content, and a mayonnaise-like emulsion is produced by stirring the drain water. In this case, the stirring action of the drain water is reduced in the container, so that the generation of emulsion is prevented.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show the outline of an outdoor unit of an air conditioner having a heat pump driven by a gas engine. A housing 2 of the outdoor unit 1 is fixed on a base 3, and the inside of the housing 2 is fixed. , Engine 4, compressors 5, 5, air cleaner 6, heat exchanger 7, oil tank 8, refrigerant unit 9 for storing refrigerant, electric unit 1
0, an exhaust heat exchanger 11, a drain separator 12, a drain water treatment device 20, etc. are installed respectively, and for promoting the heat exchange action of the heat exchanger 7 and ventilating the inside of the housing 2 at the upper end of the housing 2. An outdoor fan 13 is installed in the.

The engine 4 installed in the lower part of the housing 2 is driven by a gas such as city gas or propane gas, and an intake port of the engine 4 is connected to an air cleaner 6 and an air cleaner 6 is provided. Air is sucked into the engine 4 as combustion air through the engine 4 and is burned with the fuel gas to be driven.

The pair of compressors 5 and 5 located near the sides of the engine 4 are driven by the rotational force generated by the driving of the engine 4, and the driving of the compressors 5 and 5 compresses refrigerant such as CFCs. Is circulated from the heat exchanger 7 to a heat exchanger in the room or the like, and is cooled or heated by the air conditioner in the room.

The exhaust port of the engine 4 is connected to the exhaust heat exchanger 11 via the exhaust pipe 14, and the high temperature exhaust gas generated by driving the engine 4 is exhausted as shown by an arrow X in the figure. Sent from the pipe 14 to the exhaust heat exchanger 11,
Further, it is sent to the drain separator 12 which also functions as a silencer by the exhaust pipe 15, and finally discharged to the atmosphere from the exhaust pipe 16.

The high temperature exhaust gas discharged from the engine 4 has its heat recovered in the exhaust heat exchanger 11 by the cooling water circulated from the engine 4 to the exhaust heat exchanger 11, and becomes hot water by this heat exchange. The heat of the cooling water is used to warm the refrigerant.

At this time, in the exhaust gas rapidly cooled by the cooling water in the exhaust heat exchanger 11, the drain water is separated in the exhaust heat exchanger 11, and the exhaust gas from the exhaust heat exchanger 11 to the drain separator 12 is separated. The drain water is separated also in the exhaust pipe 15 in the course of being fed to the exhaust pipe, and is further separated in the drain separator 12 before being discharged into the atmosphere.

The drain water separated from the exhaust gas at each location is discharged through the exhaust pipe 15 and drain hoses 17 and 18, as shown by an arrow Y in the figure, and the housing 2
Inside the exhaust heat exchanger 11 and the drain separator 12
The water is discharged to the outside from the drain hose 19 through the drain water treatment device 20 arranged below.

The drain water treatment apparatus 20 neutralizes the introduced drain water having an acidic content with a neutralizing agent filled in the container 21, and then discharges it to the outside of the housing 2.
3 to 6 show an embodiment thereof.

As shown in FIG. 3, the drain water treatment apparatus 20 is made of a solid material such as calcite, dolomite, limestone, magnesium or natural coral inside a container 21 composed of a container body 21a and a lid 21b. It is filled with a neutralizer 40, and drain water inflow ports 22 and outflow ports 23 are formed in the opposing side wall portions thereof.

Inside the container body 21a, as shown in FIG.
An internal space between the two inflow ports 22 and 22 and one outflow port 23 is defined by three space portions 24, 25 and 26, and partition walls 27 and 28 partitioning the respective space portions have upper and lower portions, respectively. Drain water passage portions 271, 281 notched in the direction
Is formed, and in each drain water passage portion 271,281,
Punching metals 272 and 282 are attached by being inserted and locked from above.

Drain water passage portion 27 formed by punching metals 272 and 282 of partition walls 27 and 28, respectively.
1, 281 are arranged in an offset state with respect to the center line of the container 21 extending from the inflow ports 22, 22 to the outflow port 23, and are formed so that the flow of the drain water in the container 21 meanders and stays. Has been done.

Nuts 273 and 283 are formed above the central portions of the partition walls 27 and 28, respectively. The bolt 29 and the nuts 273 and 283 form a container body 21a and a lid as shown in FIG. 21b is assembled in a sealed state.

A rib structure 211 for reinforcement and an engaging portion 212 for fixing in the apparatus are integrally formed on the side wall of the container body 21a, and a punching metal is formed on the lid 21b. A locking portion 213 for locking the upper ends of 272 and 282 is formed by integral molding.

In such a container 21, the container body 2
The outflow port 23 formed in the side wall of the la is located below so that the drain water stays in the container at the water level N shown in FIG. 5, and the two inflow ports 22 and 22 are both shown in FIG. It is located above the N water level shown in FIG. 5, and the space 25 of the container 21 is filled with the neutralizing agent 40 up to the M position shown in FIG.

In such a drain water treatment device 20,
Inflow ports 22, 22 via drain hoses 16, 17
The drain water having an acidic component introduced into the space portion 24 from the drain water passage portion 2 by the punching metal 272.
After passing through 71, it slowly moves toward the outlet 23 while being neutralized in the space 25 so as to stay in the container at the water level of N shown in FIG. 5, and after being almost completely neutralized, punching is performed. The metal 282 passes through the drain water passage 281 and is discharged from the outlet 23 through the space 26 and the drain hose 19 to the outside of the container.

FIG. 7 shows another embodiment of the drain water treatment apparatus. In this embodiment, the inflow port 22 has the lid 2
1b and the two outlets 23, 23
Is formed in the vertical direction, and when the amount of introduced drain water varies greatly, the discharge amount from the outlet 23 can be changed accordingly.

The drain water treatment apparatus 20 as described above
In the above, since the space portion 26 partitioned by the partition wall 28 and the punching metal 282 is present in front of the outlet 23, a small amount of the neutralizing agent 40 which has been dissolved and becomes small is blocked in the outlet 23. Therefore, it does not enter the outflow port 23.

Further, in connection with the fact that the outlet 23 is not clogged with the neutralizer 40, the position of the accumulated water level N of the drain water in the container is always maintained below the inlets 22 and 22. The drain water that has accumulated in the container 21 is not agitated by the inflow drain water.

Further, since the space 24 partitioned by the partition wall 27 and the punching metal 272 is present in front of the inflow port 22, the inflowing drain water directly collides with the neutralizing agent 40 and the wall of the container. It does not stir itself.

Although the drain water treatment apparatus of the present invention has been described above with reference to the embodiments, the present invention is not limited to such embodiments. For example, inflow of the drain water into the space near the inflow port is described. Needless to say, it is possible to provide a guide wall to make bubbling smooth and to change the shape of the container itself, the number and position of inlets and outlets, and other specific structures. Nor.

[0033]

According to the drain water treatment apparatus of the present invention as described above, the neutralizing agent filled in the container flows out and the outlet is clogged to prevent the smooth discharge of drain water. Therefore, the stirring action of the drain water in the container is surely prevented, the generation of emulsion is prevented, and the problem of inhibiting the activity of the neutralizing agent due to the adhesion of the emulsion does not occur.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of an outdoor unit of an air conditioner in which a drain water treatment apparatus of the present invention is used.

FIG. 2 is a schematic explanatory diagram of an outdoor unit of the air conditioner viewed from the direction of arrow A in FIG.

FIG. 3 is a partially sectional front view showing an embodiment of the drain water treatment apparatus of the present invention.

FIG. 4 is a partial cross-sectional top view of the container body shown in FIG.

5 is a vertical cross-sectional view of the cross section taken along the line C-C in FIG.

FIG. 6 is a partial cross-sectional side view showing an arrangement state of punching metals shown in FIG.

FIG. 7 is a vertical sectional view showing another embodiment of the drain water treatment apparatus of the present invention.

[Explanation of symbols]

 20 Drain Water Treatment Device 21 Container 22 Inlet 10 Outlet 24 Space Part 26 Space Part

Claims (1)

[Claims] 1. Drain water separated from exhaust gas of an engine is introduced into a container through an inflow port, the drain water remaining in the container is neutralized by a neutralizing agent, and the neutralized drain water is flowed. In a drain water treatment device that discharges from the outlet to the outside of the container, the opening inside the container at the inlet is located above the accumulated water level of the drain water, and the drain that has flowed in near the opening inside the container at the inlet. A drain water treatment apparatus characterized in that a space is formed so that water does not collide, and a space in which a neutralizing agent does not enter is formed in the vicinity of the opening in the container at the outlet.