JP2006061863A - Water separating and recovering apparatus - Google Patents

Water separating and recovering apparatus Download PDF

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Publication number
JP2006061863A
JP2006061863A JP2004249541A JP2004249541A JP2006061863A JP 2006061863 A JP2006061863 A JP 2006061863A JP 2004249541 A JP2004249541 A JP 2004249541A JP 2004249541 A JP2004249541 A JP 2004249541A JP 2006061863 A JP2006061863 A JP 2006061863A
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Japan
Prior art keywords
drain
separation
support plate
water
element
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Pending
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JP2004249541A
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Japanese (ja)
Inventor
Shigemi Moriya
Tomio Shimizu
重美 森谷
富雄 清水
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Nippon Paper Industries Co Ltd
日本製紙株式会社
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Priority to JP2004249541A priority Critical patent/JP2006061863A/en
Publication of JP2006061863A publication Critical patent/JP2006061863A/en
Application status is Pending legal-status Critical

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Abstract

[PROBLEMS] To make it possible to easily drop a drain separated by a separation element into a drain pot, to further enhance a separation function of water and a water-insoluble liquid, and to eliminate a drain discharge failure. It is to obtain a separation and recovery device.
In a water separation and recovery apparatus, a drain separation member is provided on a support plate that supports a separation element so that the drain discharged from the separation element does not enter the central portion of the support plate. It is composed.
[Selection] Figure 1

Description

  The present invention relates to water and water capable of efficiently separating water and water-insoluble liquid from an aqueous solution (aqueous emulsion, aqueous dispersion) in which a water-insoluble liquid (oil, various organic liquid drugs, etc.) is dispersed in water. The present invention relates to an apparatus for separating and collecting an insoluble liquid. More specifically, in the water separation and recovery apparatus, the separation of water and the water-insoluble liquid can be efficiently promoted by devising a support plate that supports the separation element in the separation cylinder.

  In order to remove water from lubricating oil such as vacuum pumps and compressors, a water-in-oil separator is used. For example, in the water-in-oil separator shown in FIG. 1, an electrostatic filter nonwoven fabric in which permanent static electricity is polarized and oriented. (Hereinafter also referred to as electret non-woven fabric) and the separation element comprising a hydrophilic non-woven fabric are independently disposed in a dedicated coagulation cylinder and a separation cylinder, respectively, and oil containing water is passed through these elements. To remove water.

  The moisture aggregation element as the primary element is manufactured by winding and laminating an electrit non-woven fabric around a porous support, for example, a porous plastic pipe. When the emulsified oil containing a lot of water is passed through the electrit nonwoven fabric, the electrit nonwoven fabric performs the function of applying an electric field, so fine water suspended and dispersed in the oil aggregates and coarsens. Is done.

  When a hydrophilic nonwoven fabric layer is used as a separation element, water droplets that have been coarsened to a certain extent by the electrostatic filter element that is a moisture aggregation element are further promoted by the separation element as a secondary element, so that moisture can be absorbed in a short time. Sedimentation from the separation element can greatly improve the water removal rate.

  By the way, the structure and operation of the above-described oil-in-water separator is that the emulsified lubricating oil containing water is sent from a vacuum pump, a compressor, or the like to the primary element for aggregation in the aggregation cylinder, where the moisture is It is coarsened. And the aqueous solution roughened to some extent is sent to the separation element in the separation cylinder through the pipe. The separation element is fixed to the separation cylinder at the top of the separation element, and the bottom of the separation element is supported on a spring placed on a support plate. The support plate is positioned below the separation element and is fixed to the separation cylinder. The aqueous solution that has passed through the separation element is separated into water (hereinafter also referred to as drain) and oil, and the separated drain falls in the oil, and holes are formed in the support plate in round or square shapes at appropriate intervals. Through and falls into the drain pot at the bottom of the separation cylinder. The drain accumulated in the drain pot is automatically discharged when the sensor senses the drain level.

  However, since the drain separated by the separation element tends to enter the central portion of the support plate, the following problems have occurred particularly when a large amount of water is mixed in the aqueous solution. That is, the drain collected at the central portion of the support plate is accumulated at the central portion, and the collected drain is combined and gradually increases, and the phenomenon that the surface tension closes the hole of the support plate has occurred. And since the hole of the support plate is closed by the drain, the drain newly separated by the separation element does not fall into the drain pot, and is mixed in the oil and returned to the vacuum pump or compressor together with the oil. It was.

Japanese Patent Laid-Open No. 3-038264 JP-A-5-309206

  The present invention has been made in order to eliminate the above-described disadvantages of the prior art, and the object of the present invention is to allow the drain separated by the separation element to be easily dropped into the drain pot, and in the oil. The purpose is to further improve the water / oil separation function of the water separator and eliminate drainage defects.

  Another object is to prevent the moisture from returning to the device such as a vacuum pump and a compressor together with the oil, which causes rusting of the device.

  Still another object is to prevent the stoppage of other facilities due to the separation function failure of the water-in-oil separator, and to stabilize production activities in factories and the like.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In short, according to the present invention, in the water separation and recovery apparatus, the drain discharged from the separation element is prevented from entering the central portion of the support plate into the support plate that supports the separation element so that the drain does not enter the central portion of the support plate. And a member (hereinafter referred to as a “drain blocking member”). That is, the drain blocking member made of a material such as stainless steel or synthetic rubber is surrounded on the support plate so as to surround the spring installed in the center of the support plate in order to block the drain that enters the center portion of the support plate. By attaching, the drain separated by the separation element hits the outer peripheral surface of the drain blocking member, and is guided to the hole of the support plate along the outer peripheral surface and falls into the drain pot.

  In this case, the drain blocking member may be produced as a separate member from the support plate and attached on the support plate, or may be integrated with the support plate from the beginning.

  The device of the present invention (Claim 2) is characterized in that the shape of the hole in the support plate is a square hole with a side of 12 mm to 14 mm. The hole shape of the support plate is a circle or a square hole, but the diameter or the length of one side is usually 10 mm. By making this from 12 mm to 14 mm, the drain can easily fall into the drain pot.

  Since the present invention includes the drain blocking member as described above, the drain separated by the separation element does not enter the central portion of the support plate, so that the drain accumulated on the support plate gradually increases. It is possible to easily drop the drain to be separated into the drain pot without blocking the hole, and the water / oil separation function of the water-in-oil separator is further enhanced, thereby eliminating drain discharge defects. . Further, by making the hole shape a square hole with a side of 12 mm to 14 mm, there is an effect of further enhancing the water-oil separation function of the water-in-oil separator.

  In addition, by attaching a drain blocking member and further making the hole shape of the support plate a square hole with a side of 12 mm to 14 mm, the separation function of the oil-in-water separator increases, and the moisture along with the oil is supplied to a vacuum pump or compressor. It is effective to prevent the cause of rusting of the apparatus.

  Furthermore, it is possible to prevent an outage of other equipment caused by a poor separation function of the water-in-oil separator and to contribute to stabilizing production activities in factories and the like.

  Hereinafter, the present invention will be described based on embodiments shown in the drawings. Referring to FIG. 1, the water-in-oil separator according to the present invention comprises an aggregating cylinder 1 and a separating cylinder 2. In an aggregating cylinder 1 connected to a pipe from a vacuum pump, a compressor, or the like, an aggregating element 3 in which an electret nonwoven fabric is wound in a roll type around an outer periphery of a porous plastic cylinder is installed. On the other hand, in the separation cylinder 2, a separation element 4 in which a hydrophilic nonwoven fabric is wound around the outer periphery of a porous plastic cylinder is connected to the aggregation element 3 by a pipe and installed. Under the separation element 4, a support plate 5 having holes 5 a formed at appropriate intervals is fixed to the inner wall of the separation cylinder 2. A spring 6 is placed on the center of the support plate 5 to support the separation element 4 located above.

  According to FIG. 2, the drain blocking member 8 is installed on the support plate 5 so as to surround the spring 6. Accordingly, the drain blocking member 8 may be a ring-shaped member having a vacant center portion. And the thickness of this ring-shaped drain blocking member 8 should just be 5 mm or more, and the outer peripheral surface 8a is inclined so that a drain can be quickly dropped into a drain pot.

  Further, according to FIG. 3, the drain blocking member 8 may have any size as long as the inner diameter 8 b can enclose the spring 6, and the outer diameter 8 c of the hole 5 a of the support plate 5 is formed by the drain blocking member 8. As long as it is not hidden. As long as the outer diameter 8c of the drain blocking member 8 does not cover the hole 5a of the support plate 5 and reaches the edge of the drain blocking member 8, immediately after the drain hits the drain blocking member 8, Since it falls in the hole 5a of the support plate 5, it is convenient. In addition, the drain blocking member 8 may be manufactured as a separate object from the support plate 5 and attached on the support plate 5, or may be manufactured in advance as an integral part of the support plate 5.

  Further, according to FIG. 3, a plurality of holes 5a in the support plate 5 are formed at appropriate intervals on the support plate, and the hole shape is a square hole having a side of 12 mm to 14 mm.

  In FIG. 1, the oil-in-water separation apparatus in which the aggregation cylinder 1 and the separation cylinder 2 are configured as separate housings has been described. However, the aggregation element and the separation element are formed in layers in the separation cylinder, and both In some cases, a separation element having an integrated function may be provided. In this case, a similar support plate may be provided below the element to cope with the same configuration.

  In the primary element for agglomeration, the oil droplets can be agglomerated and enlarged by increasing the number of contacts and collisions between the fine oil droplet dispersions in the aqueous solution. In this case, since the process is performed in a hydrophobic environment, the aggregation element includes a cylindrical element manufactured by winding and laminating hydrophobic fibers such as polypropylene and polyethylene and a nonwoven fabric. The main function of the hydrophobic element is to agglomerate and enlarge the fine oil droplet dispersion. Then, in the region of the separation element made of the hydrophilic nonwoven fabric, the fine oil droplet dispersion that has been aggregated and enlarged by the primary element is sufficiently aggregated and enlarged to pass through the hydrophilic element when sufficiently passing through the hydrophilic element. A separation state of the drop dispersion is achieved. Even in this case, the function of separating water and oil can be enhanced with the same configuration as described above.

  The present invention is configured as described above, and the operation thereof will be described below. In FIG. 1, an aqueous solution in which oil is dispersed in water is introduced from the inflow direction of the illustrated arrow through a pipe and sent to the aggregation cylinder 1 from a vacuum pump or a compressor. The sent aqueous solution flows from the outside to the inside of the aggregating element 3 in the direction of the arrow. At this time, water droplets in the aqueous solution are coarsened by the electric nonwoven fabric. Then, the aqueous solution containing the coarsened water that has reached the space inside the agglomeration element 3 is conveyed to the separation cylinder 2 in the separate housing through a pipe by a pump (not shown). According to FIG. 2, the aqueous solution carried to the separation cylinder 2 is carried to the internal space of the separation element 4 and flows from the inside of the separation element 4 to the outside in the direction of the arrow shown. At that time, the water droplets coarsened to some extent by the agglomeration element 3 pass through the hydrophilic nonwoven fabric of the separation element 4 to promote the coarsening, generate water droplets, and are separated into oil and water. The separated oil accumulates in the upper part of the separation cylinder 2 due to the specific gravity, and is sent to a vacuum pump, a compressor, or the like by a pump (not shown) through a pipe on the upper part of the separation cylinder 2 and reused as lubricating oil. On the other hand, the drain separated from the oil and discharged from the separation element 4 falls to the lower part of the separation cylinder 2 due to the specific gravity.

  The drain separated from the separation element 4 passes through the hole 5 a of the support plate 5 installed below the separation element 4 and falls and accumulates in the drain pot 9 positioned under the support plate 5. However, since the separated drain tends to enter the central portion on the support plate 5 before falling into the drain pot 9, by installing the drain blocking member 8 on the support plate 5, The drain does not collect at the center of the support plate 5 by hitting and blocking the drain. The drain that hits the drain blocking member 8 quickly falls into the drain pot 9 below the hole 5a as it is. The drain blocking member 8 only needs to have a thickness of 5 mm or more. If an appropriate slope is formed on the outer peripheral surface 8a, the drain can be guided to the hole 5a more quickly. The drain accumulated in the drain pot 9 is detected and automatically discharged when it accumulates at a certain level by a sensor (not shown).

  The drain blocking member 8 is made of a non-rusting material such as stainless steel or synthetic rubber.

  As described above, in the configuration of the present invention, the aggregation element and the separation element have been described as being installed in separate housings, but may be integrated as described above. In the above description, oil is used as the water-insoluble liquid. An example is given, but the present invention is not limited to this. Furthermore, although the electrit non-woven fabric was used as an example of the aggregation element and the hydrophilic non-woven fabric was used as the separation element, it is needless to say that it is not limited thereto as long as it has the same function.

It is sectional drawing of the separation apparatus which concerns on this invention. It is sectional drawing of the separation cylinder of the separation apparatus which concerns on this invention. It is a top view of the drain blocking member and support plate concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aggregation cylinder 2 Separation cylinder 3 Aggregation element 4 Separation element 5 Support plate 5a Hole of support plate 6 Spring 8 Drain blocking member 8a Outer peripheral surface 8b Inner diameter 8c Outer diameter 9 Drain pot

Claims (2)

  1. In the water separation and recovery device, the water separation and recovery device is provided with a drain blocking member so that the drain discharged from the separation element does not enter the central portion of the support plate on the support plate that supports the separation element.
  2. The water separation and recovery device according to claim 1, wherein the shape of the hole of the support plate is a square hole having a side of 12mm to 14mm.
JP2004249541A 2004-08-30 2004-08-30 Water separating and recovering apparatus Pending JP2006061863A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015528740A (en) * 2012-07-11 2015-10-01 メリケム カンパニー Contact and separation device and method of use thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53108079A (en) * 1977-01-04 1978-09-20 Anvar Method and apparatus for merging and separating emulsions
JPS5823604U (en) * 1981-08-11 1983-02-15
JPS62237987A (en) * 1986-03-27 1987-10-17 C J B Dev Ltd Device and method of floating and separating foreign matter from liquid
JPH05231257A (en) * 1992-02-17 1993-09-07 Toyota Motor Corp Fuel filtering device
JPH08108004A (en) * 1994-10-13 1996-04-30 Eiichi Sugiura Oil separator
JP2001524016A (en) * 1996-09-30 2001-11-27 ポール・コーポレーション Coalescer element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53108079A (en) * 1977-01-04 1978-09-20 Anvar Method and apparatus for merging and separating emulsions
JPS5823604U (en) * 1981-08-11 1983-02-15
JPS62237987A (en) * 1986-03-27 1987-10-17 C J B Dev Ltd Device and method of floating and separating foreign matter from liquid
JPH05231257A (en) * 1992-02-17 1993-09-07 Toyota Motor Corp Fuel filtering device
JPH08108004A (en) * 1994-10-13 1996-04-30 Eiichi Sugiura Oil separator
JP2001524016A (en) * 1996-09-30 2001-11-27 ポール・コーポレーション Coalescer element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015528740A (en) * 2012-07-11 2015-10-01 メリケム カンパニー Contact and separation device and method of use thereof

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