JP5678313B2 - Oil / water separator - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an oil / water separation device, and more specifically, to a technology for separating oil from drain water generated by decomposing compressed air produced by a compressor into fresh water. Then, the technology of the oil / water separator is described in which both the oil separating and storing portion and the oil absorbing and emulsion breaking function are integrated.

  Conventionally, as a technology related to an oil / water separator, an oil treatment tank that separates oil and water and an oil adsorption tank that adsorbs oil are configured separately, an oil / water separation tank that separates oil and water, and the oil / water separation tank There were some cases in which an oil adsorption tank into which separated water was introduced was integrated (for example, see Patent Document 1 and Patent Document 2).

In this case, as an oil treatment tank for separating oil and water and an oil adsorption tank for adsorbing oil separately, the inside of the tank is divided into an oil floating separation chamber and a water storage chamber by a partition plate, A sealed oil treatment tank in which the upper part of the oil floating separation chamber and the water storage chamber is formed in a compressed air chamber, and an oil adsorption tank connected to the water storage chamber of the oil treatment tank via a pipe, A clarified water discharge pipe connected to this oil adsorption tank is provided, and all or a part of the drain pipe of a dehumidifier such as an air compressor air tank, aftercooler, drain separator, dryer, etc. The drain directly connected to the separation chamber and containing the oil from the dehumidifier is sent directly to the oil treatment tank and the oil adsorption tank by the pressure of the compressed air discharged together with the drain, and the oil in the drain is separated and removed.
JP 61-1882

In addition, as an integrated oil / water separation tank that separates oil and water and an oil adsorption tank into which the separated water of the oil / water separation tank flows, the oil adsorption tank is provided on an open container and on the bottom side inside the container. Oil adsorbing tank for discharging the liquid in the oil flotation separation chamber provided below the oil flotation separation chamber and the oil flotation separation chamber adjacent to the upper part of the oil adsorption chamber The clarified water discharge pipe extends from the bottom of the oil adsorption tank to the side, and extends upward to open the upper end. A clear water discharge pipe is provided below the upper edge of the container by a height h.
JP-A-5-60071

  However, such conventional oil-water separators have the following problems.

  First, the oil treatment tank that separates the oil and water and the oil adsorption tank that adsorbs the oil are configured separately, the device is inevitably large, requires a large space, and is therefore expensive in price. It was unsuitable for small air compressors.

  And in what united the oil-water separation tank which isolate | separates oil and water, and the oil adsorption tank which flows in the separation water of this oil-water separation tank, an oil adsorption tank is an open type container, and disperses mist around it. That made the environment worse. In addition, because the oil levitation separation chamber is located above the oil adsorption chamber provided on the bottom side inside the oil adsorption tank and containing the oil adsorbent, it does not particularly isolate the oil levitation separation chamber. In addition, the oil adsorbent in the oil adsorption chamber adsorbed significantly the floating oil in the oil floating separation chamber.

The present invention forms an inlet 40a as an inlet through which drain water flows together with compressed air and a drain water passage port 40b through which drain water from which a part of the oil is separated passes, and the oil is separated into the upper part in a space. An oil / water separation unit 40s that can store water , the drain water passage 40b as an inlet for inflow , and an outlet 40c as an outlet from which fresh water flows out are formed to have an oil adsorption function and an emulsion breaking function. The emulsion-breaking oil adsorbing part 40t , which can be removed by completely separating and adsorbing the oil from the collected oil , is integrated with the separated and separated oil, and only stored and adsorbed without being discharged to the outside. Is processed as an oil-water separation emulsion breaking oil adsorbing tank 40, and further, the emulsion breaking oil adsorbing section 4 is used. t is divided into an oil adsorbing part 40ta having an oil adsorbing function and a first emulsion breaking oil adsorbing part 40tb having an oil adsorbing and emulsion breaking function, and drain water flows in the order described. and then, further, the inner side of the oil-water separation emulsion breaking oil adsorption tank 40, the oil-water separation portion 40s and is positioned the oil suction portion 40ta the bottom, is positioned the first emulsion breaking oil suction portion 40tb to the upper, The inflow port 40a and the drain water passage port 40b are positioned at the bottom and the outflow port 40c is positioned at the top, and further, the oil adsorbing unit 40ta is disposed outside the oil / water separation unit 40s. And a partition wall 42x is provided so that drain water does not flow directly from the inlet 40a into the drain water passage port 40b. Inner separation emulsion breaking oil adsorption tank 40, the oil-water separation portion 40s and is positioned the oil suction portion 40ta the top, is positioned the first emulsion breaking oil suction portion 40tb the bottom, the inlet 40a at the top And the drain water passage port 40b, the outlet 40c is located at the bottom, the oil adsorbing portion 40ta is located outside the oil / water separation portion 40s, and the drain water passage port 40b from the inlet 40a. Further, a partition wall 42x is provided so that drain water does not flow directly into the inlet, and furthermore, a check that prevents the drain water from flowing backward from the oil / water separation emulsion breaking oil adsorption tank 40 is provided at the inlet 40a. A valve 32 is connected. Further, the check valve 32 is connected to a drain trap 22 capable of feeding drain water together with compressed air. The above-described problems have been solved by the characteristics of the above.

  As is clear from the above description, the present invention can provide the following effects.

  First, an oil-water separation that forms an inflow port as an inlet for the drain water and a drain water passage port through which drain water from which a part of the oil is separated passes, and can store the oil separated in the upper part in a space. And the drain water passage port, forming an outlet as an outlet through which fresh water flows out, and integrating the oil breaker oil adsorber part with oil adsorber and emulsion breaker functions into an oil / water separation emulsion As a break-up oil adsorption tank, a compact, simple, easy-to-handle and low-cost device that does not occupy an area is possible.

  Secondly, the drain water passage port is designed to allow drain water to flow in the horizontal direction. By providing a plurality of drain water at the same height, the drain water can be as far away as possible at the emulsion breaking oil adsorption part. It will flow, and will flow more dispersedly, so it will not flow in the form of the shortest specific flow path, and only limited specific oil adsorbents will deteriorate early as a result. Can now be prevented.

  Third, the emulsion breaking oil adsorbing part is divided into an oil adsorbing part having an oil adsorbing function and a first emulsion breaking oil adsorbing part having an oil adsorbing and emulsion breaking function, and drain water flows in the order described. By doing so, the functions of both emulsion breaking and oil adsorption can be used effectively corresponding to the order of flow.

  Fourth, inside the oil / water separation emulsion breaking oil adsorption tank, the oil / water separation part and oil adsorption part are located at the bottom, the first emulsion breaking oil adsorption part is located at the top, and the inlet and drain water pass at the bottom By positioning the outlet and the outlet at the top, drain water provides both functions of emulsion breakage and oil adsorption while storing the separated oil in the oil / water separator using the pressure of compressed air. It is possible to use it effectively according to the order in which it flows, and to discharge it as clear water.

  Fifth, drain water can be formed in the emulsion breaking oil adsorbing part by positioning the oil adsorbing part outside the oil / water separating part and providing a partition so that the drain water does not flow directly from the inflow port to the drain water passing port. As long as it flows as far away as possible, drain water containing a lot of oil will not flow directly, and as a result, only limited specific oil adsorbents can be prevented from prematurely deteriorating. Became.

  Sixth, inside the oil / water separation emulsion breaking oil adsorption tank, the oil / water separation part and oil adsorption part are located in the upper part, the first emulsion breaking oil adsorption part is located in the lower part, and the inlet and drain water pass at the top. By positioning the outlet, the outlet at the bottom, the oil adsorbing part located outside the oil / water separation part, and providing a partition so that drain water does not flow directly from the inlet to the drain water passing port, While storing the separated oil in the oil / water separator using the pressure of compressed air, the functions of both emulsion breakage and oil adsorption are effectively used according to the order in which the drain water flows, and discharged as clear water without fail. As a result, the drain water flows as far as possible at the emulsion breaking oil adsorbing section, and the drain water containing a large amount of oil does not flow directly. Suck Only wood has become to be able to prevent the deterioration at an early stage.

  Seventh, a drain valve in the oil / water separation emulsion breaking oil adsorption tank is connected to the air tank by connecting a check valve that prevents the drain water from flowing back from the oil / water separation emulsion breaking oil adsorption tank to the inlet. It became possible to prevent backflow to the side.

  Eighth, the check valve is connected to a drain trap that can send drain water together with compressed air, so it is possible to use compressed air instead of power to feed drain water. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Here, FIG. 1 is a diagram showing the whole of the present invention, and FIG. 2 is another diagram showing the whole of the present invention.

  As shown in FIG. 1, reference numeral 10 denotes a compressor that creates compressed air. Although not specifically shown in FIG. 1, an air compressor that sucks the atmosphere to create compressed air, and a rotary motion of the air compressor. An electric motor to be configured is configured, and the rotational motion of the electric motor is transmitted to the air compressor by a belt.

  Here, the compressed air produced by the air compressor constituting the compressor 10 is sent to the compressed air pipe 102 via the compressed air pipe 101 for flowing out the compressed air and the air tank 20 for storing the compressed air. ing. In this case, an air dryer that dries compressed air and an air filter that removes various foreign substances such as dust contained in the compressed air may be provided in the middle of the compressed air pipes 101 and 102.

  Incidentally, at the tip of the compressed air pipe 102, various actuators such as an air motor and an air cylinder can be operated by using the compressed air.

  By the way, the drain water generated by degassing from the compressed air in the air tank 20 is together with the compressed air, the drain water pipe 111, the on-off valve 21 for manually opening and closing the flow of the compressed air and the drain water, and the drain water. A piping 112, an electric drain trap 22 that discharges drain water together with compressed air by any signal, a drain water piping 113, an on-off valve 31 that manually opens and closes the flow of compressed air and drain water, The drain water pipe 114, the check valve 32 that prevents back flow from downstream to upstream, the drain water pipe 115, the oil / water separation emulsion breaking oil adsorption tank 40, and the fresh water pipe 121 can be directly drained into the river. It is possible to discharge beautiful clean water.

  In this case, the oil / water separation emulsion breaking oil adsorbing tank 40 is hollow and has a cylindrical main body 41 made of iron, aluminum, transparent plastic, or transparent glass, an inlet 40a, and a partition wall 42x and oil water. An iron inlet side cover 42 in which the separation part main body 42y is integrated by welding, brazing or adhesive, a cap 43 capable of making the oil / water separation part main body 42y sealed by screwing, and punching with a hole A perforated plate 44 using a plate or a wire mesh, a perforated plate 45 using a perforated plate or a wire mesh, a support 46 for securing a space between the space portions 40u, and an iron outlet side lid formed with an outlet 40c. 47 is integrally formed. In addition, a drain water passage port 40 b is formed in the oil / water separator main body 42 y in the vicinity of the inlet side lid 42.

  The oil-water separation emulsion breaking oil adsorption tank 40 in a sealed state is constituted by the main body 41, the inlet-side lid 42 located at the lower part and the outlet-side lid 47 located at the upper part. The outer side of the inlet side lid 42 and the outlet side lid 47 at a portion protruding from the main body between the inlet side lid 42 having a larger outer diameter than the main body 41 and the main body 41 and the outlet side lid 47 having a larger outer diameter than the main body 41. The peripheral portion is penetrated by four bolts with the main body 41 interposed therebetween, and the inlet side lid 42, the main body 41 and the outlet side lid 47 are fixed with eight nuts at both ends of the bolt. In this case, an O-ring, packing, or the like is positioned between the inlet side lid 42 and the end of the main body 41 and between the end of the main body 41 and the outlet side lid 47 to prevent drain water from leaking. Further, the drain pipe 115 and the inlet 40a, the outlet 40c and the fresh water pipe 121 are connected by a joint.

  The inside of the oil / water separation emulsion breaking oil adsorbing tank 40 is separated into the upper part in space by screwing the cap 43 together with the oil / water separation part main body 42y of the inlet side lid 42 located at the lower part. The oil-water separator 40s can store the oil, the upper portion from the outside is the emulsion breaking oil adsorbing portion 40t, and the space between the upper portion on the inner side and the outlet side lid 47 is the space portion 40u. Here, the flange between the oil / water separator main body 42y and the cap 43 prevents the internal drain water from leaking through an O-ring, packing, or the like. In this case, the space 40 u means a portion surrounded by the perforated plate 45, the outlet side lid 47, and the main body 41. That is, the inside of the oil / water separation emulsion breaking oil adsorption tank 40 is formed by the oil / water separation part 40s, the emulsion breaking oil adsorption part 40t, and the space part 40u.

  Furthermore, the emulsion breaking oil adsorbing part 40t has an oil adsorbing part 40ta having an oil adsorbing function and an oil adsorbing and emulsion breaking function, with a perforated plate 44 having a large number of holes as a boundary so that drain water can easily flow. The first emulsion breaking oil adsorbing portion 40tb is divided and the drain water flows in the order described. The position of the perforated plate 44 is shown in contact with the cap 43 in FIG. 1, but the position of the first emulsion breaking oil adsorbing part 40tb becomes smaller by positioning it at the upper part, but the oil adsorbing is performed. It is also possible to enlarge the section of the portion 40ta.

  By the way, in the oil / water separation emulsion breaking oil adsorbing tank 40, in particular, the first emulsion breaking oil adsorbing portion 40tb is made of an emulsion adhering emulsion breaking particles intended to break the emulsion and adsorb the oil. And an oil adsorbent 52 intended to adsorb oil are housed in a substantially uniformly mixed state. In addition, activated carbon intended to remove pigments and off-flavors is accommodated in the entire cross section of the central portion so as to block the flow of drain water as necessary. An oil adsorbing material 52 is accommodated in the oil adsorbing portion 40ta.

  Here, with respect to the main body 41, a transparent material such as glass or plastic is used so that the internal situation can be visually observed from the outside. It is also possible to insert a transparent material such as glass or plastic into a part as possible.

  In this case, the oil adsorbent 51 with emulsion breaking particles releases the bond between oil and water by emulsion breaking the drain water that is sometimes emulsified due to the action of the emulsion breaking particles. The separated oil is adsorbed by the oil adsorbent or the oil adsorbent 52 constituting the oil adsorbent 51 with emulsion breaking particles. Therefore, by mixing the oil adsorbent 51 with emulsion breaking particles and the oil adsorbent 52, the oil can be removed by completely separating and adsorbing the oil from the emulsified oil.

  On the other hand, if it mentions about granular activated carbon, it aims at adsorb | sucking or removing a pigment | dye and a strange odor. Moreover, as for the position to store in the oil / water separation emulsion breaking oil adsorption tank 40 of the activated carbon, the activated carbon is quickly contaminated at the uppermost stream, and the dirty drain water flows as the activated carbon itself flows out at the most downstream. For this reason, it can be said that it is desirable to be positioned approximately in the center.

  The oil adsorbent 51 with emulsion breaking particles and the oil adsorbent 52 increase in resistance as they adsorb foreign matter such as oil, and are pressed toward the downstream while being compressed, further increasing resistance and emulsifying. The function of oil destruction and oil adsorption gradually decreases.

  Therefore, in order to prevent this function from being deteriorated, punching in which a large number of small holes are formed so that the liquid can easily pass through the substantially central portion of the main body 41 so that the liquid flow can be blocked vertically. An intermediate perforated plate made of a plate or the like is disposed, and a cylindrical support material having a smaller diameter than the main body 41 is disposed between the intermediate perforated plate and the perforated plate 45 to support the intermediate perforated plate. It is also conceivable to prevent the adsorbent 51 and the oil adsorbent 52 from being compressed.

  However, as for the position of the intermediate porous plate which is meant to prevent the function from being lowered, it does not matter even if it is slightly around the center of the main body 41. Further, the supporting material is not necessarily limited to a cylindrical shape, and any shape may be used as long as the intermediate porous plate can be supported by fixing with several bolts.

  In addition, it is best to store activated carbon in the main body 41 immediately after the downstream of the intermediate porous plate, but it is also possible to see the effect that is close to the best when it is stored immediately before the upstream of the intermediate porous plate. On the other hand, even if it is accommodated in the middle perforated plate somewhat before and after, a considerable effect is seen as it is.

  Here, as a method of making the oil adsorbent 51 with emulsion breaking particles in which emulsion breaking particles are attached to the adsorbent, a solution in which emulsion breaking particles such as amine and barium sulfate are dissolved in a solvent is attached to the oil adsorbing material. In general, a method of evaporating and drying the solvent is used, but there is also a method of spraying the solution onto the oil adsorbent in a mist form. Further, a method of adhering to the oil adsorbent in a state where the emulsion breaking particles such as amine and barium sulfate are not uniformly dissolved but in a liquid is mixed.

  In this case, the emulsion breaking particles and the oil adsorbing material may be filled so as to be dispersed between the oil adsorbing materials 52 without changing the state of the oil adsorbing material 51 with the emulsion breaking particles. . Also in this case, it is desirable that the activated carbon is disposed immediately before or immediately upstream of the intermediate porous plate or in the vicinity thereof. However, in any of the above cases, a configuration in which activated carbon is not disposed is also conceivable.

  On the other hand, with respect to the amine used in the present invention, an amine compound or a derivative thereof can be considered. When the amine compound or the derivative thereof is 25 ° C., it is preferably a solid, but the compound is non-solid at 25 ° C. Even if it is in the form of a solid, it may be a compound that becomes a solid in a mixture with other compounds. That is, the compounds may be used alone or in combination of two or more.

  By the way, these amine compounds and derivatives thereof are preferably primary amines, secondary amines, tertiary amines, and derivatives thereof, more preferably primary amines, secondary amines, and derivatives thereof, particularly preferably, Primary amines (eg stearylamine) and their derivatives.

  Examples of the amine compound include primary amines such as hexylamine, heptylamine, octylamine, nonylamine, decylamine, laurylamine, myristylamine, palmitylamine, oleylamine, stearylamine, or hydrocarbon chains thereof. Secondary amines such as diamines and triamines, and tertiary amines, or their picrates, various salts (for example, salts of hydrochloric acid, sulfuric acid, phosphoric acid, carbonic acid, acetic acid, etc.), and these hydrocarbon chains Examples include primary amines, secondary amine acid amides, amidines, ureas, thioureas, and primary amine Schiff bases.

  Moreover, what consists of fiber containing nonwoven fabrics, such as a polypropylene and a polystyrene, can be considered as the oil adsorbent used for the oil adsorbent 52 and the oil adsorbent 51 with an emulsion breaking particle. However, the oil adsorbents used in the oil adsorbent 52 and the oil adsorbent 51 with emulsion breaking particles need not be limited to those described above, and may be those that have an oil adsorption function and are insoluble in water. For example, activated carbon and sawdust may be considered, and other materials may be used.

  Here, the size of the oil adsorbent used in the oil adsorbent 52 and the oil adsorbent 51 with emulsion breaking particles is preferably (10 to 200 mm) × (2 to 50 mm), More preferably, it can be said that the size is (30 to 80 mm) × (5 to 40 mm). In particular, it is most desirable to prepare two types of sizes of (35 to 55 mm) × (25 to 40 mm) and (40 to 60 mm) × (3 to 10 mm). From another perspective, this can be said to be close to the idea of preparing two kinds of small pieces of 100 mm x 50 mm or less and 3 to 10 times different in area. It can be said that it is ideal to prepare two types of small pieces of 60 mm × 40 mm or less and different sizes of 4 to 8 times in area.

  In this case, the reason why such a size is preferable is that when the main body 41 is filled with the oil adsorbent used in the oil adsorbent 52 and the oil adsorbent 51 with emulsion breaking particles, Since it is difficult to fill a large amount due to the increase in size, it becomes difficult to obtain a large surface area, and there are many parts that are forcedly compressed, but such parts are functions of breaking and adsorbing emulsified oil If the amount is too small, the gap is basically small, so the oil that has been emulsified breaks down and the function of adsorption quickly decreases. It is troublesome to cut, and it is also troublesome to perform various management.

  In addition, the use of two types of sizes means that by preparing two types of small pieces of different sizes, adding small ones to the large gaps and unreasonable compression that are issues with increasing the size It has a great meaning that it can be compensated by adding a big thing to the early functional decline that is a problem by making it small at the same time.

  As for the two kinds of small pieces, it is best to use two kinds of small pieces for both the oil adsorbent 52 and the oil adsorbent used in the oil adsorbent 51 with emulsion breaking particles. A small piece may be used for the oil adsorbent 51 used for the oil adsorbent 51 with emulsion breakage particles, or vice versa.

  The oil / water separator according to the present invention is configured as described above, and the contents thereof will be described below.

  Generally, sewage containing oil includes water that has recovered oil that has flowed into the river due to some trouble, and seawater that has recovered oil that has flowed into the sea due to sinking or other problems that have occurred on the sea. Various types of waste liquid generated at the factory, drain water generated by decomposing compressed air, water generated from an air conditioner, and the like can be considered. Here, various measures are taken to separate the oil from the sewage water into clean water.

  Here, as an example, a case where drain water generated by decomposing compressed air is treated is shown.

  First, when the electric motor constituting the compressor 10 is operated, the rotational movement of the electric motor sucks the atmosphere and is transmitted to the air compressor to create compressed air. Here, the generated compressed air is temporarily stored in the air tank 20 via the compressed air pipe 101 and then sent to the compressed air pipe 102. However, although the compressed air is not specifically shown in FIG. 1, various actuators such as an air motor and an air cylinder are operated at the tip of the compressed air pipe 102.

  On the other hand, the drain water generated by the exposure from the compressed air in the air tank 20 together with the compressed air, the drain water pipe 111, the on-off valve 21, the drain water pipe 112, the drain trap 22, the drain water pipe 113, , The on-off valve 31, the drain water pipe 114, the check valve 32, the drain water pipe 115, and the oil / water separation emulsion breaking oil adsorption tank 40 that separates the oil water and stores the oil to perform the oil adsorption and emulsion breakage. After that, it is finally possible to obtain clean fresh water that does not have any problem even if it is discharged into the river as it is through the fresh water pipe 121.

  As for the operation of the drain trap 22, it may be possible to open the drain trap 22 for a certain time every time a certain time elapses, or after confirming the presence of drain water in a specific place, It is also conceivable to open the drain trap 22 during confirmation or for a certain period of time.

  The drain water sent to the oil / water separation emulsion breaking oil adsorption tank 40 flows into the oil / water separation unit 40s from the inlet 40a formed in the lowermost inlet side lid 42. On the other hand, the drain water that has flowed into the oil / water separator 40s separates the oil in the oil / water separator 40s, so that light oil is floated and stored on the upper part, and the remaining drain water is stored from the upper end of the partition 42x to the partition 42x. The drain water passage ports 40b formed at the lower part of the oil / water separator main body 42y and positioned in the vicinity of the inlet-side lid 42 are horizontally horizontal while sinking between the oil and water separator main body 42y. And flows into the oil adsorbing part 40ta which is a part of the emulsion breaking oil adsorbing part 40t located outside.

  In this case, in the oil adsorbing portion 40ta, the drain water that has flowed in cannot be floated and stored by the oil adsorbing material 52 that has been stored in the oil / water separating portion 40s. Adsorb oil.

  On the other hand, the drain water that has been subjected to the oil adsorption process in the oil adsorbing part 40ta, which is a part of the emulsion breaking oil adsorbing part 40t, passes the upper perforated plate 44 and is a part of the emulsion breaking oil adsorbing part 40t. It flows into the emulsion breaking oil adsorption part 40tb.

  Here, in the first emulsion breaking oil adsorbing portion 40tb, the drain water that has flowed in substantially uniformly distributes the oil adsorbing material 51 with emulsion breaking particles and the oil adsorbing material 52 that adsorbs oil to which the emulsion breaking particles are adhered. The oil adsorbent with emulsion breakage particles 51 and the oil adsorbent 52 are randomly routed in the mixed state and stored in the mixed state. The released oil is further adsorbed while releasing the emulsion by releasing the bond, and the oil adsorbent 52 adsorbs the oil that could not be adsorbed by the oil adsorbent 51 with emulsion breaking particles. After improving the cleanliness of the drain water by performing also, it is connected to the fresh water pipe 121 via the space 40u at the uppermost outlet 40c.Further, when drain water passes through the activated carbon layer, odors and pigments are completely removed.

  In this case, the purpose of the space 40u is to prevent the formation of a specific flow path by providing such a buffer. In this way, fresh water that does not have a problem even if it flows directly into the river is sent to the fresh water pipe 121.

  As shown in FIG. 2, reference numeral 10 denotes a compressor that creates compressed air. The compressed air flowing out from the compressor 10 flows through the compressed air pipe 101 and the air tank 20 to the compressed air pipe 102, and the air tank 20. The drain water generated by the dew condensation from the compressed air together with the compressed air together with the drain water pipe 111, the on-off valve 21, the drain water pipe 112, the drain trap 22, the drain water pipe 113, the on-off valve 31, and the drain water pipe 114 It can be said that the flow to the check valve 32 is the same as in the first embodiment.

  Here, Example 2 is different from Example 1 in that Example 1 is connected to drain water pipe 115, oil-water separation emulsion breaking oil adsorption tank 40, and fresh water pipe 121, whereas Example 2 is drained. That is, the water pipe 116, the oil / water separation emulsion breaking oil adsorption tank 40, and the fresh water pipe 122 are connected.

  More specifically, in the first embodiment, the drain water flows in the oil / water separation emulsion breaking oil adsorption tank 40 from the lower side to the upper side, whereas in the second embodiment, In this case, the drain water flows in the oil / water separation emulsion breaking oil adsorption tank 40 from the upper side to the lower side.

  In this case, both the first embodiment and the second embodiment are operated by the compressed air fed together with the drain water from the time when the drain water is fed into the oil / water separation emulsion breaking oil adsorption tank 40 to the time when the drain water is discharged into the fresh water pipes 121 and 122. The drain water is moving. Further, the oil / water separation emulsion breaking oil adsorption tank 40 used in the first embodiment and the second embodiment is the same, and the structure and operation are naturally the same.

  In addition, although it can be said that Example 1 and Example 2 function almost the same, Example 2 differs from Example 1 remarkably, if the position of the front-end | tip of the fresh water piping 122 of Example 2 is an oil-water separation emulsion. If the position is much lower than the position of the breaking oil adsorption tank 40, the oil adsorbent 51 with emulsion breaking particles and the oil adsorbent 52 stored in the oil / water separation emulsion breaking oil adsorption tank 40 may be dried. That is. Therefore, in FIG. 2, the position of the tip of the fresh water pipe 122 is located about 85% from the lower part of the total length of the oil / water separation emulsion breaking oil adsorption tank 40, but is substantially 60 to 100%. It doesn't matter if it is in the place

  The present invention relates to an oil / water separation apparatus, and more specifically, to a technique for separating oil from drain water generated by decomposing compressed air produced by a compressor into fresh water. A compact, simple and easy-to-handle low-priced product for a small compressor that integrates both the oil storage part and the oil adsorption / emulsion breaker part. It describes the technology of the oil-water separator intended for

  Diagram showing the entire invention of the present application   Another figure showing the whole of the present invention

Explanation of symbols

10 .... Compressor 20 ... Air tank 21 ... Open / close valve 22 ... Drain trap 31 ... Open / close valve 32 ... · Check valve 40 ··· Oil / water separation emulsion breaking oil adsorption tank 40a ··· Inlet 40b ··· Drain water passage 40c ··· Outlet 40s ··· Oil / water separation part 40t ... Emulsion breaking oil adsorption part 40ta ... Oil adsorption part 40tb ... First emulsion breaking oil adsorption part 40u ... Space part 41 ... Body 42 ······························································································· Cap 44・ Perforated plate 46 ・ ・ ・ ・ ・ ・ Strut 47 ・ ・ ・ ・ ・ ・ Exit side lid 51 ・ ・ ・ ・ ・ ・ Emulsion break Oil adsorbent with particles 52 ··· Oil adsorbent 101 · · · compressed air piping 102 · · · compressed air piping 111 · · · drain water piping 112 · · · drain water Pipe 113 ... Drain water pipe 114 ... Drain water pipe 115 ... Drain water pipe 116 ... Drain water pipe 121 ... Fresh water pipe 122 ...・ Pure water piping

Claims (7)

An inlet (40a) as an inlet through which drain water flows together with compressed air and a drain water passage port (40b) through which drain water from which a part of the oil is separated pass are formed, and the inside is a space and the oil separated into the upper part thereof An oil / water separator (40 s) capable of storing
The drain water passage opening of the inlet flows (40b), further Shimizu forms the outlet of the outlet for outflow (40c), the oil from the emulsified with oil by having the function of oil adsorption and emulsion breaking emulsion breaking oil suction portion has become possible to remove by completely separate adsorption and (40t), a so as to be integrated,
The separated / separated oil is processed only in the main body (41) by storage and adsorption without being discharged to the outside.
An oil / water separation device characterized by being formed as an oil / water separation emulsion breaking oil adsorption tank (40). The emulsion breaking oil adsorbing part (40t) is divided into an oil adsorbing part (40ta) having an oil adsorbing function and a first emulsion breaking oil adsorbing part (40tb) having an oil adsorbing and emulsion breaking function. 2. The oil / water separator according to claim 1 , wherein the drain water flows in the order of. Inside of the oil-water separation emulsion breaking oil adsorption tank (40), is positioned the oil-water separation unit at the bottom (40 s) and the oil suction portion (40Ta), said the upper first emulsion breaking oil suction portion (40TB) The oil water according to claim 2 , wherein the inflow port (40a) and the drain water passage port (40b) are positioned at the lowermost portion, and the outflow port (40c) is positioned at the uppermost portion. Separation device. The oil adsorbing part (40ta) is positioned outside the oil / water separation part (40s), and a partition wall (42x) is provided so that drain water does not flow directly from the inlet (40a) to the drain water passage (40b). The oil-water separator according to claim 3 , wherein the oil-water separator is provided. Inside of the oil-water separation emulsion breaking oil adsorption tank (40), the oil-water separation section to the upper (40 s) and the oil suction portion (40Ta) is positioned, said the lower first emulsion breaking oil suction portion (40TB) Positioned, the inlet (40a) and the drain water passage port (40b) are positioned at the top, the outlet (40c) is positioned at the bottom, and the oil outside the oil / water separator (40s) adsorbing part (40ta) is located, according to claim 2, characterized in that drain water in the drain water passage opening (40b) from the inlet (40a) is provided with partition wall (42x) so as not flow directly Oil-water separator. To the inlet (40a) is the preceding claims, characterized in that drain water from the oil-water separation emulsion breaking oil adsorption tank (40) is connected a check valve (32) to prevent backflow of The oil-water separator according to any one of 5 . The oil / water separator according to claim 6 , wherein a drain trap (22) capable of feeding drain water together with compressed air is connected to the check valve (32).

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