JPS59209628A - Drain separator - Google Patents

Abstract

PURPOSE:To discharge only drain water without using a solenoid valve, by operating a valve mechanism partitioning the gas introducing and exhaust port sides and the drain discharge port side in a container collecting and storing drain water by utilizing drain water as an operation source. CONSTITUTION:A valve mechanism 9 is provided in a container having a drain discharge port 8 provided to the lower side thereof and the introducing port 7 of gas to be separated and a gas exhaust port 6 provided to the upper side thereof. This mechanism 9 provides a partition wall 10 in the lower side region in the container 5 with respect to the open position of the port 7 being a boundary and a float 11 for opening and closing the communication orifice 10a thereof is arranged to the upper stage side of said orifice 10a. By this mechanism, the orifice 10a is closed in usual and, for example, when combustion exhaust gas cooled by a heat exchanger is introduced into the container 5 along with formed drain water from the port 7, drain water is separated to be accumulated in a collecting and accumulating part 13 while exhaust gas is exhausted from the port 6. In this case, because the orifice 10a is opened by the upward movement of the float 11 with the level rising of drain water, only drain water is guided to the bottom part in the container 5 and, when almost all the drain water is flowed out to the lower part of the container 5, the orifice 10a is closed by the float 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a drain separator that separates drain water introduced together with gas.

[Technical background of the invention and its problems]

In fields where the heat contained in the exhaust gas from combustors and elagin is utilized using heat exchangers, water vapor contained in the exhaust gas condenses and drains due to the humidity difference between the fluid flowing through the heat exchanger and the exhaust gas. It is known to turn into water. However, this drain water has the disadvantage that it accumulates in pipes through which exhaust gas flows, causing corrosion and other problems.

Therefore, in order to quickly discharge the condensed drain water, conventional methods have been used in which a drain discharge pipe is connected to the conduit, and the drain water accumulated in the conduit is discharged through the drain discharge ino. There is.

However, such a device that simply discharges drain water from a drain drain ino has the disadvantage that exhaust gas is also discharged together with the drain water, which may accelerate corrosion of the equipment body and parts, or emit toxic gases. It has many problems such as being released into the surrounding area.

Therefore, in view of this point, recently, a drain discharge nozzle is connected to the container that collects drain water, and a solenoid valve is installed on both the container and the drain discharge pipe.
A separator has been proposed in which only drain water is taken out based on the operation of a solenoid valve. However, although separators that discharge drain water using such solenoid valves can certainly take out only drain water, they require expensive solenoid valves and various devices to detect the amount of drain water. Therefore, it is extremely expensive, and has the problem of being expensive in terms of its functionality.

[Purpose of the invention]

This invention was made in view of the above circumstances, and its purpose is to provide a drain separator that can discharge only drain water without using a solenoid valve.

[Summary of the invention]

In this invention, a container is provided with a drain outlet on the lower side and a gas inlet to be separated and a gas outlet on the upper side, and inside this container, the gas introduction/output side and the drain outlet side are always partitioned. When drain water collects in the container through the gas inlet to be separated, the collected drain water can be used as an operating source (C). By configuring this, it is possible to separate gas and drain water and discharge only the drain water without using an expensive solenoid valve.

[Embodiments of the invention]

The present invention will be explained below based on a first embodiment shown in FIGS. 1 to 3. Figure 1 shows a heat utilization device,
1 is a combustion source such as an engine or a combustor; 2 is a pipe connected to the exhaust side of the combustion source 1; and 3 is a heat exchanger disposed in the pipe 2. Therefore, the heat of the exhaust gas discharged from the combustion source 1 can be used to heat the fluid flowing through the heat exchanger 3.

Further, a drain separator 4 is connected to the lowest part of the pipe line 2 for separating the drain water accumulated in the pipe line 2 by □1 from the exhaust gas as the gas to be separated. The detailed structure of the drain separator 4, which is the main part of the present invention, is shown in FIGS. 2 and 3.

To explain the structure of this drain separator 4, 5 in the figure
Reference numeral 1 denotes a tank-shaped container in which a gas outlet 6 is provided in the center of the earthen wall, an exhaust gas introduction lower part as a gas inlet to be separated is provided in the upper side of the side wall, and a drain outlet 8 is provided in the lower wall. However, the gas outlet 6 and the exhaust gas introduction lower are located on the upper side of the container 5.
The drain outlet 8 is provided on the lower side of the container 5.

A valve mechanism 9 is provided within the container 5.

This valve mechanism 9 includes a partition wall 10 provided with a flow hole 10a in the lower side area of the container 5 bordering on the opening position of the exhaust gas introduction lower, thereby separating the gas introduction/outlet 6, 7 side and the drain outlet 8 side. A float 11 for opening and closing the communication hole 10a is arranged on the upper side of the communication hole 10a. In addition, the float 11 is configured such that a guide rod 12, which is erected through the communication hole (1θa) from the inner bottom of the container 5, can move up and down with respect to the opening of the communication hole 10a as an id. A collecting part 13 is formed in the upper space of the partition wall 10 by partitioning the gas introduction/outlets 6 and 7 side and the drain outlet 8 side by blocking the hole 1 (ja), and the liquid flows into the collecting part 13. The gas is guided to the gas outlet 1 which performs a separation function based on the so-called specific gravity difference, and also has a collecting part 1.
When the drain water collects in the drain port 3, the float 11 is moved upward using the collected drain water as an operating source to open the flow port 10a and the collected drain water can be guided to the drain outlet port 8. ing. In other words, gas and liquid are separated by the partition between the gas inlet/outlet 6°7 side and the drain outlet 8 side, and only the drain water can be taken out by releasing the partition as the float 11 rises. ing. In addition, in order to reliably take out the drain water from the container 5, the float 11 is designed to prevent the pressure interference of the exhaust gas flowing in from the exhaust gas introduction lower (the float 11 due to the exhaust gas pressure
The area of the contact part 11b is made small by forming the stepped part 11a to minimize the pressure of the water from the drain outlet 10a (pressing of the water to the flow port 10a). It is designed to be derived when the drain water exceeds a certain level. In addition, float 1
1, as shown in Fig. 4, the planar cross-sectional area of the float 1 (outer diameter of the float 1) may be made as small as possible, and the height dimension A at the apex of the trun f15 depends on the shape and specific gravity of the float 1. , exhaust gas pressure, etc.

Further, reference numeral 17 denotes a baffle plate disposed on the inlet side of the gas outlet 06, which prevents drain water from being blown up toward the gas outlet 6 side.

The exhaust gas introduction lower of the drain separator 4 configured in this way is connected to the lowest part of the pipe line 2, and the gas outlet port 6 is connected to the exhaust port 2a side of the pipe line 2 via pipes 16 and 16, respectively. The exhaust gas from the combustion source 1 and further the drain water produced by condensation can be received into the drain separator 4 through the lowest part of the pipe 2.

Next, the effect will be explained.

Now, the combustion source 1 is put into combustion operation. This allows combustion source 1
In this case, combustion gases, so-called exhaust gases, are produced. Then, this exhaust gas is guided to the pipe line 2, circulates inside the pipe line 2, and at the stage of passing through the heat exchanger 3 provided in the middle of the pipe line 2, the fluid flowing inside the heat exchanger 3 is changed. Heat. and,
At this time, water vapor contained in the exhaust gas condenses due to the temperature difference between the fluid flowing through the heat exchanger 3 and the exhaust gas, and becomes drain water, which reaches the lowest part of the pipe line 2. On the other hand, in the drain separator 4, drain water reaching the lowest part of the pipe line 2 is introduced into the drain separator 4 along with the exhaust gas flowing in the pipe line 2 through the pipe 16 and the exhaust gas introduction lower part. At this point, since the float 11 is initially blocked by its own weight with the flow port lθa, drain water with a large specific gravity begins to flow into the collection portion 13 one after another, and the exhaust gas with no place to escape flows from the gas outlet 6 to the pipe f16. is returned to conduit 2 through. At this time, the drain water blown up together with the exhaust gas is returned to the collecting portion 13 leading to the gas outlet 6 due to the reversal effect of the baffle plate 17. However, gas/liquid separation is performed. When the heat utilization device continues to operate and drain water accumulates in the collection section 13, the float 11 moves upward following the increase in the level, and the flow hole 10a'i) is opened. Then, the drain water collected in the collection part 13 due to this opening is transferred to the flow port 10.
It accumulates at the inner bottom of the container 5 through the passage a. At this time, since the flow port 10a is shielded by the float 11, only drain water is guided to the inner bottom of the container 5 without being affected by the pressure of the exhaust gas. When most of the drain water in the collection section 13 has flowed out to the inner bottom of the container 5, the flow port 10a is closed by the float 11, which moves downward following the drop in the level, and the state returns to the same state as before. It turns out. The state at this time is shown in FIG. and,
Such an operation of the drain separator 4 is repeated depending on the exhaust gas and drain water flowing out from the exhaust gas introduction lower.

Thereafter, when the level of the drain water accumulated at the inner bottom of the container 5 due to such extraction of drain water exceeds the level at the top of the trap 15 as shown in FIG.
5, the drain water accumulated at the inner bottom of the container 5 is discharged to the outside.

Thus, with a simple structure that does not use a solenoid valve, exhaust gas and drain water can be reliably separated and only drain water can be discharged, and various problems caused by exhaust gas discharge can be solved. Furthermore, since no exhaust gas is emitted, it has excellent soundproofing effects. In particular, these effects can be extremely improved by installing the trap 15 and reducing the area of the contact portion 11b of the float 11.

Further, the present invention is not limited to the first embodiment described above, but can be applied to, for example, the second embodiment shown in FIGS. 5 and 6, and the third embodiment shown in FIGS. 7 to 9. You can do it like this.

That is, in the case shown in FIGS. 5 and 6, a float 11 that is biased toward the flow port 10a side by a spring 30 is placed on the inner bottom of the container 5, and this 7-point 11
A valve mechanism 9 is configured to open and close the flow port 10a, and such a valve mechanism 9 can also take out drain water from the container 5 using the drain water accumulated in the container 5 as an operating source. . In other words, the float 11 is always
By blocking the gas inlet/outlet 6゜7 side and the drain outlet 8 side, a separation function is formed, and when a certain amount of drain water accumulates in the collecting section 13, the gravity of the drain water and the exhaust gas Push down the float 11 with the pressure of and release the partition,
Only drain water is taken out from the open flow port 10a and guided to the drain outlet 8. Note that FIG. 5 shows a state in which a certain amount of drain water has accumulated in the collecting portion 13, and FIG. 6 shows a state in which the drain water is discharged.

However, in FIGS. 5 and 6, the same components as those of the first embodiment described above are given the same reference numerals, and the explanation thereof is omitted.

In addition, the valve mechanism 9 shown in FIGS. 7 and 8 is configured using only the float 1 and the drain outlet 8,
It is designed to take out the drain water accumulated in the container 5. Specifically, a valve seat 32 is formed in the drain outlet 8, and the float 11 is placed in the planar cross section of the internal space of the container 5, as shown in FIG. It is composed of a disc-shaped part 34 having a plurality of corresponding through holes 33, for example, and a valve stem part 35 provided on the lower surface of this disc-shaped part 34 in correspondence with the valve seat part 32. is arranged in a container 5 so that it can be raised and lowered using the peripheral wall of the container 5 as a guide. However, at all times, the drain outlet 8 of the lifting rod portion 35 of the float 11 is blocked to prevent gas introduction/outlet 6. A separation function is formed by partitioning the z side and the drain outlet 8 side, and the inner bottom of the container 5 is connected to the collecting part 1.
3, when a certain amount of drain water accumulates through the through holes 33..., the float 11 is pushed up by the buoyancy of the drain water, the partition is released, and only the drain water is taken out from the open drain outlet 8. . Note that FIG. 7 shows a state in which a certain amount of drain water accumulates, and FIG. 8 shows a state in which the drain water is discharged. However, in FIGS. 7 and 8, the same components as those of the first embodiment described above are given the same reference numerals, and the explanation thereof is omitted.

〔Effect of the invention〕

As explained above, according to the present invention, only drain water can be reliably separated and taken out without using a solenoid valve.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of this invention,
Fig. 1 is a configuration diagram showing how the drain separator is used, Fig. 2 is a sectional view showing the structure of the drain separator and the state in which drain water is collected, and Fig. 3 is a sectional view showing the state in which the drain water is discharged. , FIG. 4 is a cross-sectional view showing different floats, FIG. 5 is a cross-sectional view showing the structure of a drain separator according to a second embodiment of the present invention and the state of collection by the valve mechanism, and FIG. 6 is a cross-sectional view showing the drain water collected by the valve mechanism. A cross-sectional view showing the discharge state, FIG. 7 is the third embodiment of this invention.
FIG. 8 is a cross-sectional view showing the structure and collection state of the drain separator according to the embodiment, FIG. 8 is a cross-sectional view showing the drain water discharge state, and FIG. 9 is a perspective view showing the float constituting the valve mechanism. . 4... Drain separator, 5... Container, 6... Gas outlet, 7... Exhaust gas inlet (separated gas inlet), 8
...Drain outlet, 9...Valve mechanism. Applicant's agent Patent attorney Takehiko Suzue Figure 4 111) = 1

Claims (1)

[Claims] A container is provided with a drain outlet on the lower side and a gas inlet to be separated and a gas outlet on the upper side. Drain water collects through the gas inlet to be separated, and a valve mechanism is provided that uses the collected drain water as an operating source to release the partition and guide the collected drain water to the drain outlet. and drain separator.