JPH0335374Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a mist separator for a compressor, and in particular to a mist separator for a compressor that has improved mist collection ability by improving the vane structure. It is.

[Prior Art] It is known that an isothermal compressor is generally employed as a compressor for raw air in air separation equipment plants and the like. This isothermal compressor is constructed as shown in FIG. The upper part of the - line in FIG. 3 shows an axial longitudinal cross-sectional view of the isothermal compressor, and the lower part shows an axial cross-sectional view. As shown in the figure, a multi-stage impeller c is attached to a rotating shaft b of an isothermal compressor a. A pair of intercoolers d are installed on both sides between the stages of these impellers c. When these intercoolers d compress the compressed fluid and increase the pressure, the temperature also increases, so
This is for cooling the fluid to be compressed in order to increase compression efficiency. Mist is generated along with this cooling, and mist separators e are provided downstream of these intercoolers d to collect the mist generated in the intercoolers d. Conventionally, these mist separators e are shown in FIGS. 4 and 5.
It was constructed as shown in the figure. As shown,
The mist separator e includes a rectangular frame f shaped so that the direction of gravity is the longitudinal direction, a vane g disposed within the frame f along the direction of gravity, and a central part and a bottom part in the direction of gravity. gutters h and i installed in
It consisted of a discharge port j provided in the bottom gutter i for discharging the collected mist guided into the gutter h and i. The tip k of the vane g on the downstream side in the flow direction is bent and shaped to easily collect mist. In addition, the above-mentioned gutter h, i is a vane g
The mist collected at is guided to the above-mentioned outlet j to be discharged to the outside of the device to prevent re-scattering.

[Problems to be solved by the invention] By the way, the conventional mist separator e for an isothermal compressor has the following problems.

The mist collected by the vane g descends along the vane g due to gravity, and the amount of mist collected in substantially the lower half of the mist separator e increases. Also, gutter h
Since there is a wide distance between the mist and i, it takes time for the mist to be guided into the gutter h and i, and the mist ends up staying on the vane g. Therefore, there is a problem that the mist collection ability may be reduced or the collected mist may be scattered again.

Furthermore, despite differences in the distribution of mist concentration in the direction of gravity, the mist collection ability is uniform in the direction of gravity, which causes a problem in that compression efficiency may decrease due to poor mist collection. Ta.

[Purpose of the invention] The present invention was created to solve problems in mist separators for compressors.

The purpose is to provide a mist separator for a compressor that does not reduce the mist collection ability and can prevent the collected mist from scattering again.

[Summary of the invention] In order to achieve the above object, the present invention provides a mist separator having a vane provided downstream of the intercooler of a compressor, below a point on the downstream side of the vane where the suction flow velocity is high. A mesh member is provided to cover this, and a gutter is provided in multiple stages in the direction of gravity to guide the mist collected by the vanes to the discharge port, and is arranged below the point where the suction flow velocity is high on the downstream side of the vanes. By installing gutters in multiple stages in the direction of gravity, mist (drain) is efficiently guided to the discharge port without reducing the mist collection ability, and by providing a mesh member, it is possible to recycle the collected mist. It can prevent scattering.

[Example] Next, an example of the present invention will be described in detail with reference to the accompanying drawings.

A mist separator for a compressor according to the present invention is shown in FIGS. 1 and 2. As shown in the figure, the frame 2 of the mist separator 1 is formed into a rectangular shape so that the direction of gravity is the longitudinal direction. Vanes 3 are disposed throughout the frame 2 along the direction of gravity. The tip 4 of the vane 3 on the downstream side in the flow direction is bent and shaped to easily collect mist. A mesh member 5 is provided on the downstream side of the vane 3 in the flow direction so as to cover the lower part of an impeller (not shown) where the suction flow velocity is high. Specifically, the mesh member 5 is attached to the downstream end edge of the frame 2 in the flow direction, and is located below (approximately the lower half) the point where the suction flow rate is high.
It covers vane 3 of. This mesh member 5 is formed of, for example, punched metal or wire mesh. Further, the frame body 2 is provided with gutter 6 in multiple stages in the direction of gravity below the portion where the suction flow velocity is high. For example, in the case where there are three gutters 6, these gutters 6 are installed so that the installation interval ratio is 2:3:4 in an upward direction with respect to the gutters 6 attached to the bottom of the frame 2 as a reference. The number of gutters 6 and the installation interval ratio are adjusted as appropriate depending on the equipment. A drain 7 is formed in the gutter 6 attached to the bottom.
The mist collected by the vane 3 is transferred to these gutter 6.
It is configured such that it is guided to the discharge port 7 by.

The operation of the mist separator 1 for a compressor constructed as described above will be described.

In a mist separator for a compressor, the suction flow velocity is high near the center, and the flow velocity is slow at the upper and lower parts. As a result, most of the mist is collected near the center, and the mist becomes a drain and moves down the vane from the top to the bottom due to gravity.

Therefore, the mist concentration in substantially the lower half of the vane 3 increases. However, since the mist separator 1 of the present invention is equipped with gutters in multiple stages in the direction of gravity in the lower half thereof, the drain is efficiently guided to the outlet without overflowing, and the mist collection ability is not reduced. .

In addition, since the mesh member is provided at approximately the lower half of the mist separator 1, the suction flow velocity at approximately the lower half is restricted, so there is no fear that the collected drainage will scatter, and the re-scattering of the drainage is prevented. be able to. Moreover, since the low flow velocity in the lower part is restricted, the flow velocity of the entire mist separator is not affected much.

[Effects of the invention] In summary, the present invention provides the following excellent effects.

(1) Downstream from the point where the suction flow velocity is high on the downstream side of the vane, there are gutters installed in multiple stages in the direction of gravity to guide the mist collected by the vane to the outlet, so that the drain can be efficiently routed to the outlet. The mist collection ability will not deteriorate.

(2) A mesh member is provided below the point on the downstream side of the vane where the suction flow velocity is high, so as to cover it, the mist is prevented from scattering again without significantly affecting the flow velocity of the entire mist separator. can.

(3) It has a simple structure and is highly versatile.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a sectional view taken along the line - in FIG. 1, FIG. 3 is a sectional view of the isothermal compressor, and FIG. 4 is a perspective view showing a conventional example.
FIG. 5 is a sectional view taken along the - line in FIG. 4. In the figure, 1 is a mist separator, 3 is a vane, and 5 is a mist separator.
6 is a mesh member, 6 is a gutter, and 7 is a discharge port.

Claims (1)

[Scope of utility model registration request] In a mist separator having a vane provided on the downstream side of the intercooler of the compressor, a mesh member is provided below the point on the downstream side of the vane where the suction flow velocity is high so as to cover this, and the mist separator is collected by the vane. A mist separator for a compressor, characterized by having a multi-stage gutter in the direction of gravity for guiding the collected mist to a discharge port.