JP3234667B2 - Drain water treatment device for engine driven heat pump device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain water treatment device for treating drain water generated by an engine driven heat pump device as an air conditioner.

[0002]

2. Description of the Related Art Conventionally, the above drain water treatment apparatus has been
There is one disclosed in Japanese Patent Application Laid-Open No. Sho 60-137110.

According to the above publication, the pressure for refrigerant compression is
There is an engine that drives the compressor, and this engine
Exhaust heat exchanger, exhaust silencer and gas outlet
These exhaust heat exchangers and exhaust silencers
And the gas outlet in this order.
Flows sequentially and is discharged to the outside.

The above exhaust heat exchanger and exhaust silencer are
Introduce drain water to neutralize this drain water
The neutralizer is equipped with an exhaust heat exchanger and an exhaust
It is located below the silencer.

The inside of the exhaust heat exchanger communicates with the inside of the neutralizer.
A first drain water pipe is provided for draining the first drain water pipe.
Separately from the water pipe, the inside of the exhaust silencer
A second drain water pipe communicating with the neutralizer is provided,
And it opens toward the above-mentioned neutralizer, and the inside of this neutralizer
A drain water outlet communicating with the outside is provided.

[0006] Then, lever drives the compressor by the engine, the refrigerant compressed by the compressor is circulated, such as a heat exchanger, the air conditioning is performed. Also, at this time,
Serial exhaust from the engine exhaust heat exchanger, an exhaust silencer, and are discharged sequentially flows through the gas outlet.

In the above case, the drain water generated from the exhaust gas has an acidic component, and although it is a small amount, it is not preferable to drain the drain water as it is. So, on
The neutralizer was installed, and the exhaust heat exchanger and the exhaust
The drain water generated in the silencer is the first and second drains.
Do not interfere with each other through the water pipes
And then smoothly fed into the neutralizer, where it is neutralized.
Is discharged through the drain water outlet
ing.

[0008]

By the way, the above conventional art
In the technology, part of the exhaust gas in the exhaust heat exchanger is
May flow into the neutralizer through the water pipe.
In this case, the pressure inside the neutralizer increases, and this pressure
As a result, the drain water in the second drain water pipe is
Backflow from the Japanese side into the exhaust silencer
May be caused.

When the backflow occurs, the exhaust gas is exhausted.
The drain water generated in the silencer is
It tends to accumulate inside, and due to the oxidizing action of this drain water,
The life of the exhaust silencer there is a problem that Ru is allowed to decrease.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and has been made in consideration of the above circumstances.
It was allowed to smoothly drained from the exhaust silencer, and an object thereof is to improve the life of the exhaust <br/> gas silencer.

[0011]

A feature of the present invention to achieve the above object is to provide a compressor for compressing a refrigerant.
An engine 4 for driving the engine 6 is provided.
Gas heat exchanger 9, exhaust silencer 11, and gas outlet
The exhaust heat exchanger 9 and the exhaust sile
Sensor 11 and gas outlet 15 in this order.
The exhaust 21 of the engine 4 flows sequentially and is discharged to the outside.
West,

The exhaust heat exchanger 9 and the exhaust silencer 1
By introducing the drain water 23 in 1, the drain water 23
The neutralizer 25 which neutralizes provided, is positioned below the exhaust silencer 11 of this neutralizer 25 and ibid exhaust heat exchanger 9,

The inside of the exhaust heat exchanger 9 is placed inside the neutralizer 25.
A first drain water pipe 35 communicating with the first
Separately from the drain water pipe 35, the exhaust silencer
-Drain water that makes the inside of the -11 communicate with the inside of the neutralizer 25
A pipe 37 is provided and opened into the neutralizer 25.
Drain water that connects the inside of the neutralizer 25 to the outside
Drain of engine driven heat pump device with outlet 39
In water treatment equipment,

The inside of the neutralizer 25 is communicated with the outside.
A gas outlet 34 is provided,

[0015] The first, the first opening in the neutralizer 25
2 Drain water at each downstream end of drain water pipes 35 and 37
Mouths 32 and 33 and drain water outlet 39 above
On the upper side, the gas outlet opening into the neutralizer 25
This is at the point where the opening 34a of the portion 34 is located.

[0016]

[Operation] The operation of the above configuration is as follows.

The exhaust 21 of the high temperature of the engine 4, exhaust heat exchanger 9, an exhaust silencer 11, and a gas outlet portion
When flowing through the 15, the exhaust 21 is significantly cooled by the heat exchanger temperature drops, the exhaust site and the exhaust heat exchanger 9
Drain water 23 is generated in the rinser 11 .

[0018] The exhaust the top Symbol exhaust heat exchanger 9 silencer 1
1 and the large amount of drain water 23 generated by the first and second drains.
After being introduced into the neutralizer 25 through the water pipes 35 and 37, respectively , and neutralized here, the drain water outlet 39 is connected to the drain water outlet 39.
Drained through .

In the above case, the exhaust gas 21 in the exhaust heat exchanger 9
Of the neutralizer 2 passes through the first drain water pipe 35
5, the pressure inside the neutralizer 25 increases.
The pressure in the second drain water pipe 37
The drain water 23 flows from the neutralizer 25 side to the exhaust siren.
An attempt is made to flow back into the sir 11.

However, through the first drain water pipe 35,
The exhaust gas 21 that has flowed into the neutralizer 25 is
The gas is discharged to the outside of the neutralizer 25 through the gas outlet 34.
Let me do.

For this reason, the pressure in the neutralizer 25 is high.
Is prevented from being formed in the second drain water pipe 37.
Drain water 23 receives pressure from the neutralizer 25 side.
Without being introduced into the neutralizer 25,
In this way, it is reliably neutralized and drained.

Accordingly, the exhaust gas 21 from the engine 4
The drain water 23 is not only discharged from the exhaust heat exchanger 9.
The exhaust silencer 11 also smoothly enters the neutralizer 25.
Drained into the exhaust silencer 11
Is prevented.

Further , the above-mentioned second
1. Drain at the downstream end of the second drain water pipes 35 and 37
From the water inlets 32 and 33 and the drain water outlet 39
Are also placed on the upper side, respectively.
The opening 34a of the outlet port 34 is located.

For this reason, in the neutralizer 25,
The gas from the drain water inlet 32 of the first drain water pipe 35
The exhaust gas 21 going to the outlet 34 and the above-mentioned drain water
Drains going from the inlets 32 and 33 to the drain water outlet 39
Len water 23 is diverted up and down in the neutralizer 25.
To prevent them from interfering with each other.
You.

Therefore, the drain water 23 in the neutralizer 25 is
Is carried by the exhaust gas 21 and from the gas outlet portion 34
Ejection is prevented.

[0026]

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

(Example 1)

1 to 3 show a first embodiment.

In the figure, reference numeral 1 denotes an outdoor unit in an engine driven heat pump device. This outdoor unit 1
Has a casing 2 having a rectangular shape in plan view, and the casing 2 is installed on the ground 3.

An engine 4 is provided in a lower portion of the casing 2.
The engine 4 is driven by using gas as fuel. A pair of compressors 6, 6 are provided near the side of the engine 4.
The compressors 6 are driven by the engine 4.

An air cleaner 7 is connected to an intake port of the engine 4, and a pair of first exhaust pipes 8, a pair of exhaust heat exchangers 9, an exhaust silencer 11, and a second exhaust pipe are connected to exhaust ports of the engine 4. 13, mist separator 14, and
The gas outlets 15 are connected in this order. The air cleaner 7 and the exhaust silencer 11 are located near the upper side of the engine 4 and the exhaust heat exchangers 9
It is located near the lower side.

The mist separator 14 is located at the uppermost part in the casing 2, and the gas outlet 15 penetrates the ceiling plate of the casing 2 and opens to the outside of the casing 2.

In addition, 16 is a heat exchanger, 17 is an oil tank, 18 is a refrigerant unit for storing a refrigerant such as Freon,
19 is an electrical unit, 20 is an outdoor fan attached to the upper end of the casing 2, and this outdoor fan 20 promotes the heat exchange action of the heat exchanger 16 and ventilates the inside of the casing 2.

When the engine 4 is driven, the air in the casing 2 is sucked into the engine 4 through the air cleaner 7 together with the fuel gas, and is used for combustion. On the other hand, the high-temperature exhaust gas 2 discharged from the engine 4
1 first passes through the first exhaust pipe 8 and the exhaust heat exchanger 9 in order, and when passing through the exhaust heat exchanger 9, the heat of the exhaust 21 is given to the hot water. Given to.

Next, the exhaust gas 21 is connected to the exhaust heat exchanger 9.
From the exhaust silencer 11 , the second exhaust pipe 13, the mist separator 14, and the gas outlet 15 in this order.
It flows and is discharged outside the outdoor unit 1 .

When each of the compressors 6 is driven by the driving of the engine 4, the refrigerant is compressed and circulated to the indoor heat exchanger or the like. Thus, air conditioning for cooling or heating is performed.

In the above case, the exhaust 21 from the engine 4
However, in particular, the exhaust heat exchanger 9 and the exhaust silencer 11
When the exhaust gas 21 flows through the exhaust gas, the exhaust gas 21 is significantly cooled by heat exchange and the temperature thereof drops, thereby generating drain water 23 having an acidic component. Also in the mist separator 14, drain water 23 having an acidic content is separated from the exhaust 21.

Therefore, a drain water treatment device 24 for neutralizing and draining the drain water 23 is provided.

The drain water treatment device 24 has a neutralizer 25, which is located below the exhaust heat exchanger 9 and the exhaust silencer 11, and the neutralizer 25 is a shaft.
It has a cylindrical shape oriented vertically to the center, and the side wall of the casing 2
It is provided in a space between the compressor 6. This neutralizer 25
Is long, the area occupied in plan view can be small.
Therefore, it is suitable when the outdoor unit 1 is installed on a narrow floor.
are doing.

[0040] In particular, as shown in Figure 3, the neutralizer 25
With the elongated casing 26, and a punching metal 27 off <br/> specification the casing 26, the punching main
The barrel 27 extends vertically inside the casing 26 . The particulate neutralizing agent 29 such as limestone on one side of the chamber in the casing 26 partitioned by the punching metal 27 is filled, the other side of the chamber is a space 30, also the one side
Another space 31 is located above the neutralizing agent 29 in the chamber
Is formed .

The lower part of the space 30 has a drain water inlet 3.
2, 33 are formed. Then, the downstream end of the exhaust heat exchanger 9 of the lower of the two exhaust heat exchanger 9, 9 are connected by the first drain water pipe 35 to the drain water inlet 3 2. Although not shown, the downstream end of the upper exhaust heat exchanger 9 is also connected to the drain water inlet 33 in the same manner as described above. Therefore, the inside of the exhaust heat exchanger 9, 9 is
The first drain water pipe 35 communicates with the neutralizer 25.
Has been passed through.

The exhaust silencer 11 is connected to the drain water
The inlet 33 has a second drain pipe separate from the first drain water pipe 35 .
Connected by a drain water pipe 37 ,
The inside of the silencer 11 is connected to the second drain water pipe 37.
And is communicated with the inside of the neutralizer 25 . Further, the mist separator 14 is also connected to the drain water inlet 33 by a third drain water pipe 38 , and the second drain water
The lower ends of the pipe 37 and the third drain water pipe 38 are gathered together.
Are connected to match . A drain water outlet 39 which opens toward the inside of the neutralizer 25 is formed at a lower portion of the casing 26.
Through the, open to the outside of the casing 2, with
The inside of the neutralizer 25 is raised by the drain water outlet 39.
It is communicated with the outside of the neutralizer 25 .

Space in the casing 26 of the neutralizer 25
Gas outlet 3 for communicating the outside of the neutralizer 25 with the gas outlet 31
4 are provided. Gas outlet for the space 31
The opening 34a of the 34
1. Drain at the downstream end of the second drain water pipes 35 and 37
From the water inlets 32 and 33 and the drain water outlet 39
Are also located on the upper side.

Then, the drain water 23 generated in each exhaust heat exchanger 9 flows down the first drain water pipe 35 without collecting in the exhaust heat exchanger 9 and is introduced into the space 30. At this time, a part of the exhaust gas 21 from the exhaust heat exchanger 9 to the exhaust silencer 11 is also introduced into the space 30. Most of the exhaust 21 introduced into the space 30
The gas is discharged from the gas outlet 34 through the spaces 30 and 31.
And a part of the exhaust 21 is discharged from the drain water outlet 39.
Will be issued. Then, the drain water 23 enters the neutralizing agent 29 and is neutralized.
It is discharged from 9.

On the other hand, the drain water 23 generated by the exhaust silencer 11 naturally flows down the second drain water pipe 37 without collecting in the exhaust silencer 11 and flows into the space 3.
0, from here it enters the neutralizing agent 29 to be neutralized, and is drained from the drain water outlet 39 of the same.

Further, the drain water 23 from the mist separator 14 also naturally flows down the third drain water pipe 38 and enters the space 30, from which it enters the neutralizing agent 29 and is neutralized. Drained from 39. In this case, the mist separator 14 is located at the uppermost part in the casing 2 and the neutralizer 25 is located at the lowermost part.
Even if there is a sufficient head difference in the drain water 23 in the drain water pipe 38 and the pressure of the exhaust 21 in the space 30 exists, the drain water 2 in the third drain water pipe 38
3 smoothly flows down the third drain water pipe 38 without flowing backward.

According to the above embodiment, since the neutralizer 25 is located in the casing 2 together with the engine 4 and is kept warm, the neutralization reaction in the neutralizer 25 is promoted.
This neutralization reaction is effectively performed. Further, the drain water 23 is collected at the drain water outlet 39 and drained, thereby facilitating the treatment.

Further, since the drain water outlet 39 is heated by the exhaust gas 21 discharged through the drain water outlet 39, freezing of this portion is prevented and smooth drainage is ensured.

The first drain water pipe 35 and the second
The drain water pipe 37 and the third drain water pipe 38 may be acid-resistant metal pipes, or may be resin-made flexible and elastic tubes. In addition, a drain trap is provided in the middle of the first drain water pipe 35, and the exhaust 21
Only the drain water 23 separated from the water may flow into the neutralizer 25.

[0050] the following figures show the actual施例2. The configuration and operation of the second embodiment of this and the embodiment are common with each other, omitting duplicated description are denoted by the same reference numerals in the drawings and will be described mainly different.

(Embodiment 2)

FIG. 4 shows a second embodiment.

[0053] According to this, neutralize 25 is the first embodiment
The same structure as that of
It is arranged above.

The first drain water pipe 35, the second drain water pipe 37, and the third drain water pipe 38 are provided with a joint 41 in the middle thereof, and the joint 41 allows the neutralizer 2 to be used.
5 is detachably attached to the casing 2 side.

Therefore, this embodiment is suitable for additionally installing the neutralizer 25 in the existing outdoor unit 1.

[0056]

According to the present invention, a compressor for compressing a refrigerant is provided.
An engine that drives the
Exchanger, exhaust silencer, and gas outlet
The exhaust heat exchanger, exhaust silencer, and gas
The exhaust of the engine flows sequentially in the same order
To be discharged outside,

[0057] by introducing the drain water in the exhaust silencer and the exhaust heat exchanger, the neutralizer provided to neutralize the drain water, exhaust Sai the neutralizer and ibid exhaust heat exchanger
Position it below the lenser,

The exhaust heat exchanger communicates with the neutralizer.
A first drain water pipe is provided for the first drain water pipe.
Neutralizes the inside of the exhaust silencer separately from the IP
Provide a second drain water pipe to communicate with the vessel, and
Open into the neutralizer and connect the interior of the neutralizer to the outside.
Engine driven heat pump with drain water outlet
In the drain water treatment device of the device,

Gas for communicating the inside of the neutralizer with the outside
An outlet is provided .

For this reason, a large amount of drain water generated when the exhaust gas from the engine passes through the exhaust heat exchanger, the exhaust silencer , and the gas outlet is discharged to the first and second drains.
Into the neutralizer through each water pipe ,
In, after neutralization, it is drained through the drain water outlet.

In the above case, part of the exhaust gas in the exhaust heat exchanger
Flows into the neutralizer through the first drain water pipe
And the pressure inside the neutralizer increases, and this pressure
If the drain water in the second drain water pipe is on the neutralizer side
Is going to flow back into the exhaust silencer
I do.

However, through the first drain water pipe,
The exhaust gas that has flowed into the neutralizer is the gas outlet.
Through the neutralizer.

For this reason, the pressure in the neutralizer increases.
Is prevented, and the drainage in the second drain water pipe is prevented.
The water does not receive the pressure from the neutralizer side,
It is smoothly introduced into the neutralizer, where it is reliably neutralized,
Drained.

Therefore, the gas generated from the exhaust of the engine
The water from the exhaust heat exchanger as well as the exhaust
The water is also smoothly drained from the
The air silencer is prevented from accumulating in the
An improvement in the service life of the silencer is achieved.

Further , the first, the first, which open into the neutralizer,
A drain water inlet at each downstream end of the second drain water pipe, and
Above the drain water outlet and the neutralizer
The opening of the gas outlet opening to the inside is located.

For this reason, in the neutralizer,
1 From the drain water inlet of the drain water pipe to the gas outlet
Exhaust gas to be exhausted and the above-mentioned drain water inlet to drain water outlet
Drain water flowing to the upper and lower sides in the neutralizer
To prevent them from interfering with each other.
Is stopped.

Therefore, the drain water in the neutralizer is discharged
When it is carried by air and discharged from the gas outlet
The drain water is removed from the drain
Draining to predetermined position by passing through water outlet
Is more reliably achieved.

[Brief description of the drawings]

FIG. 1 is an overall front view of a first embodiment.

FIG. 2 is a view taken along line 2-2 of FIG. 1 in the first embodiment.

FIG. 3 is a longitudinal sectional view of a neutralizer in the first embodiment.

FIG. 4 is a diagram corresponding to FIG. 2 in the second embodiment .

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Casing 4 Engine 6 Compressor 9 Exhaust heat exchanger 11 Exhaust silencer 15 Gas outlet 21 Exhaust 23 Drain water 24 Drain water treatment device 25 Neutralizer 32 Drain water inlet 33 Drain water inlet 34 Gas outlet 34a opening 35 1st drain water pipe 37 2nd drain water pipe 39 drain water outlet

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F01N 7/00

Claims (1)

(57) [Claims] 1. A provided an engine for driving the compressor for compressing refrigerant, an exhaust heat exchanger to the engine, the exhaust silencer, and consecutively provided the gas outlet portion, these exhaust heat exchanger, an exhaust silencer and gas, so as to be discharged to the outside flows through the outlet portion sequentially exhaust <br/> ibid engine in this order, by introducing the drain water in the exhaust silencer and the exhaust heat exchanger, in which neutralize the drain water Set up a Japanese-style ware
The neutralizer was located below the exhaust silencer and ibid exhaust heat exchanger, a first de for communicating the inside of the exhaust heat exchanger into the neutralizer
A drain water pipe is provided and is separate from the first drain water pipe.
The inside of the exhaust silencer is communicated with the inside of the neutralizer.
A second drain water pipe to be installed and
A drain that opens toward the inside of the neutralizer and communicates with the outside.
Drain of an engine-driven heat pump device with a water outlet
In the water treatment device, a gas outlet for connecting the inside of the neutralizer to the outside is provided.
And the first and second drain water pipes opening into the neutralizer.
Drain water inlet at each downstream end and drain water outlet mentioned above
Above each gas above the gas opening into the neutralizer.
A drain water treatment device for an engine-driven heat pump device with an opening at the outlet .