JPH01293115A - Separator - Google Patents

Abstract

PURPOSE:To miniaturize the group of separators and to reduce the pressure loss and the gas leakage making the separator in such a structure that the main body is a pressure vessel having plural spaces partitioned with plural filter walls for removing liquid drops in the inner part of the separator. CONSTITUTION:The refrigerant, such as helium gas, used in a refrigerator 1, is compressed by a compressor 2 and introduced into the separator A after the compression heat is removed by a cooler 3. The gas is flowed into a 1st filter 6 in the separator A through an ejector 5, and the oil drops in the gas are separated and stored in a groove 9 and returned to the compressor 2 through an oil returning port 10 and a piping 11. As a 3rd and a 4th filters 12, 13 are concentrically disposed respectively, the gas is flowed from inner part to outer part through the filters, and the oil is caught and removed, and the remaining fine oil drops and the oil vapor contained in the gas having left the 4th filter 13 are introduced into an adsorber 4 to be adsorbed and removed by adsorbent 18, such as activated carbon.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a separator for a compressor, and particularly to a separator for a compressor that is suitable for separating gas and liquid in a gas compressor. .

[Conventional technology]

Conventional Compressor Unit Separator 1 For example, an oil separator in a helium gas compressor unit is used to cool down the heat of compression generated by the helium gas compressed in the pressure f1 machine. Oil cooled by a water-cooled or air-cooled oil cooler 2 is injected from the hydraulic inlet during compression. Therefore, in order to separate the high concentration of oil contained in the high-pressure helium gas discharged from the compressor, oil separators suitable for winter concentration levels are installed individually in a multi-stage series, and piping is connected between each oil separator. It was connected.

Note that related devices of this type include, for example, Japanese Patent Publication No. 57-27992.

[Problem to be solved by the invention]

The above conventional technology does not take into consideration the miniaturization of oil separators, and separates oil separators and adsorbers with different separation concentrations into individual oil separators and communicates them in series. It is necessary to connect the oil separators with piping, and as the oil separator group becomes larger, the piping becomes longer and pressure loss increases.
In addition, gas leaks are likely to occur between the oil separator and piping joints.

There is a problem in that the number of manufacturing steps increases.

Furthermore, problems with this separator occur not only in the removal of oil from gases, but also in the removal of moisture and solid content from gases other than helium, and the removal of solid content from liquids.

The purpose of the present invention is to provide a compressor separator that can miniaturize the separator group to miniaturize the compressor unit, reduce the unit manufacturing time, reduce gas pressure loss, and eliminate gas leakage to the atmosphere. The purpose of this invention is to provide a container and an adsorption device.

[Means to solve the problem]

The above objects include: (1) a pressure vessel having a separation device therein and a plurality of spaces partitioned by a plurality of droplet removal filter walls; a means for introducing fluid into one end of the filter group and carrying out the fluid from the other end; Or, by configuring these with a removal means such as a filter or adsorbent for removing droplets and liquid vapor,
achieved.

That is, the separator of the present invention has a filter inside.

A plurality of pressure vessels connected in series, means for introducing gas into one of the filters, and means provided in the pressure vessel for guiding the gas exiting through the filter to one of the filters in the other pressure vessel. and a means for guiding the separated substance separated by the filter to the outside of the pressure vessel.

In addition, it is preferable to arrange an adsorption layer for adsorbing impurities in a single stage or in multiple stages within this filter or on the downstream side of the filter.
Further, it is desirable to have a holding means for preventing movement of impurities in the adsorption layer.

Furthermore, it is also desirable not to provide a section with a reduced cross section of the gas flow path between the filters in the same pressure vessel.

[Effect]

Fluid introduced into pressure vessel A from one of the series of filters passes through multiple filters.

After the removed material is separated, it exits the pressure vessel A and flows into a separator outside another pressure vessel B, or it is passed through an adsorbent or the like placed after a series of filters in the same pressure vessel A. , after removing the vaporous waste.

Discharge outside pressure vessel A. This allows the piping connecting the oil separator group or the piping to the oil absorber to be omitted, making the oil separator group more compact.

The compressor unit can be made smaller, reducing unit manufacturing time and reducing gas pressure loss.

Moreover, leakage of gas into the atmosphere can be eliminated. Also, at this time, the oil etc. separated by the filter.

It is also possible to collect the stagnation 2 separately in a plurality of spaces partitioned by filter walls or at 21 locations, discharge it outside the pressure vessel A, and return it to the compressor.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

The refrigerant used in the refrigerator 1, such as gas helium, is pressurized by the compressor 2, and after removing the heat of compression by the cooler 3, it is compressed @
It flows into a separator 3 which removes liquid impurities 1, such as water and oil, mixed in at the inlet or inside of 2. After separating droplet-like impurities from the helium gas in a separator 3, an absorber 4 adsorbs vaporized oil and the like.

It is supplied to the refrigerator 1 as high-pressure impure gas helium,
After generating cold in the refrigerator 1 by adiabatic expansion or the like, the low pressure gas helium returns to the compressor 2.

In the oil separator 3 , the gas passes through the ejector 5 and flows into the first filter 6 . The oil droplets in the gas are separated from the gas in the process of passing through a cylindrical first filter 6 made of Eva class fiber, for example, and the oil 8 is.

The oil collects in a groove 9 provided in the lower part between the oil and the second filter 7, passes through the oil return port 10, and returns to the compressor 2 through the pipe 11.

Inside the separator 3, a third filter 12 and a fourth filter 1 are installed.
3 built-in, each arranged in a concentric circle. The lower part of the filter is fixedly supported by a flange 14, and the upper part is
It is supported by holders 15 and 16, and holder 16 is integrated with holder 15. The ends between each filter are sealed with flanges and holders, and as the gas passes through the filters from the inside to the outside, oil droplets are captured by the filters and accumulate at the bottom of the outside of the filters, causing oil droplets to flow through the filters. tubes 17, 18
．． It is discharged out of the filter through 18'. In this embodiment, the oil-wetted pipes 17, 18, and 18' are connected to the ejector back pressure 12 provided in the 1-minute good port section, and by utilizing the suction effect generated by the gas flow, the ejector back pressure 12 is separated into the first filter inlet section. Returning oil. This may be done by connecting each oil wetting pipe to the suction side of the compressor 2. In the gas leaving the 4th filter.

Only fine particles with a particle size of about 0.1 μm or less and oil vapor remain. These oils are transferred to the adsorber 4 which communicates with the separator port 17.
The particles are adsorbed and removed by an adsorbent such as activated carbon 18 inside. Since these adsorbents tend to generate fine powder, a filter 19 made of glass fiber or the like is provided to prevent the fine powder from being entrained in the gas.

The gas flow in the oil separator only passes through one cylindrical filter and from one filter to the next.

Unlike conventional methods, there is no large reduction or expansion of the flow path area, and pressure loss due to gas flow is extremely small.

According to this embodiment, multi-stage filters can be arranged in a circular manner in the same oil separation container, and the oil accumulated in the lower part between the filters can be returned to the compressor, resulting in a small separator with low pressure loss. into a smaller size, ie.

The compressor unit that incorporates this can be made smaller, the pressure loss of the gas in the separator can be reduced, and since multiple filter storage containers are included in the same container, it is possible to reduce the size of the compressor unit that incorporates this. This eliminates the need for piping to communicate between these containers, which reduces leakage of gas into the atmosphere, and naturally reduces manufacturing man-hours.

FIG. 2 shows another embodiment of the present invention.

The difference from FIG. 1 is that the filter housed in the oil separator is shaped like a flat plate. That is, the flat filter 20,
21, 22, and 23 are connected to the inlet side 7 via the spacer 24.
With lunge 25 and bolt 26.

It is fixed to the outlet side 7 flange 27. At the bottom of the space formed between each filter, there are oil drain holes 27°, 28°, 29°.
30, and the oil drain hole 27 is connected to the inner space 31 of the separator 3.
The oil drain holes 28, 29, and 30 of the second and subsequent stages communicate with the back pressure hole 32 of the injector 5 through a pipe 33.

Gas containing a large amount of oil is transferred from the injector 5 to the separator 3.
flowed into.

After the oil is separated by each filter, it becomes a highly pure gas and exits the separator 3 through the outlet 17. Space 31 is.

The oil return hole 34 is connected to the low pressure or intermediate pressure part of the compressor, and is adjusted to be lower than the pressure between the filters.

Therefore, the oil that has separated by
1 and returns to the compressor through the oil return hole 34.

According to this embodiment, since a multi-stage oil separator can be constructed using flat filters, the oil separator can be made smaller, and can be constructed using filters of the same size, so that manufacturing costs can be further reduced. It also has the effect of allowing separated oil to be placed horizontally. Note 1
In this embodiment, the oil drain holes 28, 29, and 30 may be directly communicated with the space 31.

FIG. 3 shows another embodiment of the present invention.
The difference from the figure is that the flat filter 35 has a spherical center portion,
Place 36, 37, and 38, and.

A float valve is provided to adjust the opening and closing of the oil return hole 34 using a needle valve body 40''r with a float 39. In this example, by providing a spherical surface on the filter, even if one separator is used vertically, the separated oil can move to the outer periphery and not accumulate in the center of the filter, causing oil droplets to drop onto the gas passing through. without being accompanied.

It has the effect of ensuring stable and nine-separation performance. Also.

By providing a float valve, after a certain amount of oil has accumulated in the lower part of the space 31, only the oil can be returned to the compressor, thereby eliminating the amount of gas bypass.

This has the effect of supplying all the compressor discharge gas to the refrigerator side.

FIG. 4 shows another embodiment according to the present invention.
The difference from the figure is that the separator 3 with an oil recovery function and the adsorber 4 are integrated and housed in the same pressure vessel '41. That is, a filter 42 for preventing fine powder of the adsorbent 18 from being mixed in, and a gas outlet 4 are provided on the outer periphery of the filter 9.
A filter 44 for preventing scattering of fine powder of the adsorbent 18 is provided on the third side. According to this embodiment, the 1st separator and the adsorber can be configured in the same container, so the compressor unit can be made smaller and the manufacturing cost can be reduced, and piping between the 1st separator and the adsorber can be eliminated. This has the effect of reducing pressure loss and gas leaks.

FIG. 5 shows another embodiment according to the present invention.
The difference from the diagram is that the filter section p is filled with a single fiber, so that the gas flowing from the 1 minute good population 5 flows into the filled fiber 46 from the central ventilation hole 45 and flows in the radial direction. During the process, the oil separates and moves downward along the fiber, forming a grooved oil drain hole 47,
48°49.50 are discharged to the outside of the separation, and each is recovered by a compressor. The gas with reduced oil concentration is transferred to baffle 5.
From the outer periphery of 1. It flows into the packed layer of adsorbent 18 and further reduces the oil concentration.

In this embodiment, since the oil separator can be configured by densely packing single class fibers instead of filters, there is no space between the filters, which has the effect of further downsizing.

FIG. 6 shows another embodiment according to the present invention.
The difference from the diagram is that the adsorbent 18 is separated in multiple stages using a water-retaining material 52 such as fiber.

This has the effect of preventing the adsorbed oil from moving to the low-concentration adsorbent due to the weight of the oil. Furthermore, since fine powder can be dispersed and trapped, there is an effect of preventing the concentration of clogging of the filter. Note that the same effect is produced even when this effect is applied to the adsorber shown in FIG. 1 alone.

〔Effect of the invention〕

According to the present invention, it is possible to compactly incorporate multiple stages of separation filters in one separator itself, to recover impurities separated between the filters, and to completely pass the oil return pipe between the compressor and the separator. This reduces the bypass gas flow rate of the separator itself and the compressor unit, making the equipment and piping in the separator itself and the compressor unit more compact, improving efficiency by preventing a reduction in the discharge flow rate of the compressor unit, and increasing the efficiency of the separator itself and the compressor unit. This has the effect of reducing production costs.

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing the configuration of a compressor unit according to an embodiment of the present invention, FIGS. 2 and 3 are sectional views of a separator used in a compressor unit according to other embodiments of the present invention, respectively. FIG. 4, FIG. 5, and FIG. 6 are sectional views of a separator and an adsorber used in a compressor unit according to other embodiments of the present invention, respectively. 1... Refrigeration increase, 2... Compressor, 3... Tara, 4
...Adsorber, 5...Ejector, 6...First filter, 7...Second filter, 8...Oil, 9...Groove, 10...Oil return 90711... Piping, 12...Third filter, 13...Fourth filter, 14, 25...
・Flange, 15.16...Holder, 17, 18.1
8'...Oil drain pipe, 19°20, 21. 22.
23. 35, 36, 37° 38.42.44... Filter, 24... Spacer. 26...Volt, 27, 28, 29, 30, 47°4
8.49.50...Oil drain hole, 31...Inner space,
32... Back pressure hole, 34... Oil return hole, 39... Float. 40... Needle valve body, 41... Pressure vessel, 51...
...baffle.

Claims (1)

[Claims] 1. A plurality of pressure vessels each having a filter therein and connected in series; a means for introducing gas into one of the filters; and a means for introducing gas into one of the filters; 1. A separator having a separating means comprising means for guiding a substance separated by the filter to one side of a filter in a pressure vessel, and means for guiding a separated substance separated by the filter to the outside of the pressure vessel.