JPH08276102A - Concentrator / separator for organic / aqueous mixed solutions - Google Patents

Abstract

(57) [Summary] [Objective] To provide a concentrator / separator for an organic / aqueous mixed solution capable of stably obtaining separated water satisfying drainage standards. The device 1 comprises a cylindrical main body container 2, a heating means 3 for heating the cooling water contained in the main body container 2, a rectification means 4 for increasing the water component concentration of the vapor that is heated and vaporized,
It is composed of a condensing means 5 for condensing a part of the rectified steam to generate reflux water, and a draining means 6 for draining the separated water. The condensing means 5 is a cooling fan installed above the main body container 2, and blows air toward the top plate 20 of the main body container 2 so that part of the vapor rectified by the rectification means 4 is transferred to the top plate. Condensate on the underside of 20. However, the top plate 20 is provided with a protruding portion 22 protruding inside the top plate 20 in order to uniformly drop the condensed droplets onto the rectification means 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for concentrating and separating organic / aqueous mixed solutions, and is particularly suitable as an apparatus for concentrating and separating ethylene glycol, which is the main component of antifreeze liquid, from engine cooling water containing antifreeze liquid.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of environmental protection, there has been a demand for extracting ethylene glycol, which is the main component of antifreeze, from used engine cooling water and reusing it as fuel. Therefore, the applicant of this application (however, Nippondenso Co., Ltd.)
Filed an application for a concentration / separation device for organic / aqueous mixed solution (Japanese Patent Application No. 6-196796). This device is equipped with a rectification means for rectifying vaporized vapor by heating a mixed solution consisting of organic matter and water, and by separating steam from the vapor having a high water component concentration rectified by this rectification means. , A highly concentrated mixed solution, that is, an organic substance can be obtained.

[0003]

The above apparatus is used as a rectification means by partially liquefying the vapor rectified by the rectification means on the top plate of the apparatus and dripping it as reflux water. The concentration distribution of droplets (mixed solution) attached to stainless wool can be kept constant. However, in the device described in the prior application, since the top plate is flat, the reflux water is not uniformly dropped when the device is installed on a sloping ground, etc. Becomes uneven.

Further, in the prior application, since it is highly possible that the droplets of the mixed solution boiled by heating adhere to the packing (stainless wool) of the rectification means, the droplet concentration of the rectification means increases and the rectification occurs. The water purification performance (rectification performance) by the means deteriorates. As a result, there arises a problem that the water component concentration of the steam rectified by the rectification means is lowered and the quality of the separated water is deteriorated. The present invention has been made based on the above circumstances, and an object thereof is to provide an apparatus for concentrating and separating an organic substance / water-based mixed solution, which can always be stably obtained without deteriorating the water quality of the separated water. is there.

[0005]

The present invention has the following features to attain the object mentioned above. In claim 1,
Heating means for heating a mixed solution of organic matter and water,
By repeating condensation and re-evaporation of the vapor that is heated and vaporized by this heating means, a rectification means for increasing the concentration of water component of the vapor and a part of the vapor rectified by the rectification means of the top plate. Condensing means for condensing on the lower surface is provided, and the condensing droplet lowering means for causing the condensed droplets on the lower surface of the top plate to be almost uniformly dropped on the rectifying means is provided on the top plate.

According to a second aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water mixed solution according to the first aspect, the condensed droplet lowering means is a protrusion provided on the lower surface of the top plate. And

According to a third aspect of the present invention, in the apparatus for concentrating and separating an organic substance / aqueous mixed solution according to the second aspect, the protrusion is provided by forming a recess in the top plate.

According to a fourth aspect of the present invention, in the apparatus for concentrating and separating an organic / aqueous mixed solution according to the second aspect, the protrusion is provided by attaching a protrusion member separate from the top plate to the lower surface of the top plate. It is characterized by

According to a fifth aspect of the present invention, there is provided heating means for heating the mixed solution composed of the organic substance and water, and a heating means provided above the heating means for substantially blocking the splash of the mixed solution boiled by the heating by the heating means. A droplet blocking member, a rectification unit which is provided above the droplet blocking member and which increases the water component concentration of the vapor by repeating condensation and re-evaporation of the vapor which is heated by the heating unit and vaporized, and the rectification unit. And a condensing means for condensing a part of the vapor rectified by the retaining means on the lower surface of the top plate.

According to a sixth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / aqueous mixed solution according to the fifth aspect, the droplet blocking member is provided in a mesh shape.

According to a seventh aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water mixed solution according to the fifth aspect, the droplet blocking member is a punching metal having a large number of small holes.

According to an eighth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water-based mixed solution according to the fifth aspect, the droplet blocking member is provided in a flat plate shape, and a gap is formed on the outer periphery of the inner wall surface of the apparatus. It is characterized by

According to a ninth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water-based mixed solution according to the fifth aspect, the droplet blocking member is provided in a flat plate shape, and the heating means side and the rectification means side are provided. A communication hole is formed so as to communicate with each other.

According to a tenth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water mixed solution according to any one of the first to ninth aspects, an inlet for introducing the mixed solution is provided on a side wall below the rectification means. A main body container and a charging port for charging a mixed solution at one end, and the other end connected to the inflow port, and a trap capable of storing a fixed amount of the mixed solution between the inflow port and the inflow port It is characterized by comprising:

In the eleventh aspect of the present invention, in the apparatus for concentrating and separating an organic / aqueous mixed solution according to the tenth aspect, the input port is vertically lower than the lower end of the rectification means and higher than the lower end of the inflow port. It is characterized by having an opening surface at a position.

According to a twelfth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water mixed solution according to the tenth or eleventh aspect, a communication pipe for communicating the charging pipe and the main body container is provided below the inflow port. In addition, the charging pipe is provided with a liquid level gauge capable of confirming the liquid level of the mixed solution displaced through the communication pipe from the outside.

According to a thirteenth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water mixed solution according to any one of the tenth to twelfth aspects, the charging pipe has heat transfer between the charging port and the inflow port. It is characterized in that an intermediate connecting member made of a material having a low ratio is interposed.

In a fourteenth aspect of the present invention, in the apparatus for concentrating and separating an organic substance / water mixed solution according to the thirteenth aspect, the charging pipe is a transparent member with the charging port side of the intermediate connecting member as the liquid level gauge. It is characterized in that it is configured.

[0019]

The action and effect of the present invention having the above-mentioned structure has the following action and effect for each claim. (Claim 1) A part of the steam rectified by the rectification means is condensed and liquefied on the lower surface of the top plate, and then falls by its own weight to become reflux water. Here, the liquid droplets condensed and liquefied on the lower surface of the top plate are
The condensed droplet lowering means provided on the lower surface of the top plate makes the droplets drop substantially uniformly on the rectifying means. As a result, the concentration distribution of the liquid droplets deposited by the rectification means can be kept substantially constant, so that the quality of the separated water can be obtained constantly without deterioration.

(Claim 2) The condensed liquid droplet lowering means is a protrusion protruding downward on the lower surface of the top plate. Therefore, the liquid droplets condensed on the lower surface of the top plate fall along the protrusions. Therefore,
By providing the protrusion on the bottom surface of the top plate at an appropriate position,
It is possible to cause the liquid droplets that drop along the protrusions to drop substantially uniformly on the rectification means.

(Claim 3) The protrusion can be provided by forming a recess in the top plate. That is, the protrusions can be provided at the same time when the top plate is formed (for example, press formed). (Claim 4) Further, the protrusion may be provided by attaching a protrusion member separate from the top plate to the lower surface of the top plate.

(Claim 5) The mixed solution is heated by the heating means and boils, so that the droplets are scattered. This splash
It is blocked by a splash blocking member provided above the heating means. Therefore, since it is possible to prevent the splashes scattered by boiling from adhering to the rectification means, it is possible to always keep the water component concentration of the reflux water dropped in the rectification means high. As a result, the water purification performance of the rectification means can be maintained at a high level, so that the quality of the separated water can be always stably obtained without deteriorating the water quality.

(Claim 6) The droplet blocking member is provided in a mesh shape. For this reason, the vapor heated and vaporized by the heating means passes through the mesh of the droplet blocking member and reaches the rectification means, but the droplets scattered by boiling hardly pass through the mesh and are blocked. Of course, the size of the mesh needs to be fine (small) so that the splash can be blocked. By using a three-dimensional mesh structure (that is, a mesh shape in the height direction) instead of a plane, it is possible to reliably block the droplets. Further, since the rectification effect can be obtained by forming the droplet blocking member in a mesh shape, the quality of the separated water can be improved.

(Claim 7) A punching metal having a large number of small holes may be used as the splash blocking member. In this case, the vapor heated and vaporized by the heating means reaches the rectification means through each small hole, but the droplets scattered by boiling hardly pass through the small holes and are blocked. The punching metal may be in the form of a thin plate, but if the plate thickness is made thicker (thickness in the height direction), each small hole is formed in the shape of a passage, so that the effect of blocking splashes becomes greater.

(Claim 8) The splash blocking hand member may be formed in a flat plate shape without providing a mesh or small holes. However, a gap is formed on the outer periphery of the inner wall surface of the apparatus so that vaporized vapor can pass through. As a result, the splash due to boiling is blocked by the flat plate-like splash blocking member.

(Claim 9) Further, when the droplet blocking member has a flat plate shape, the droplets can be blocked and vaporized vapor can be generated even if the structure is not such that a gap is formed between the droplet blocking member and the inner wall surface of the apparatus. It should be able to pass. That is, a communication hole that connects the heating means side and the rectification means side may be formed at an appropriate position of the flat plate-shaped droplet blocking member. In this case, claim 7
It can be said that, as with the punching metal described in, the thicker the plate, the greater the effect of blocking the droplets.

(Claim 10) The mixed solution charged from the charging port flows into the main body container from the inlet opening to the main body container through the charging pipe. After the mixed solution is charged,
A fixed amount of the mixed solution is stored in the input pipe that constitutes the trap. Thus, the space between the inlet and the inlet is blocked by the mixed solution accumulated in the trap, so that the inside of the main body container can be kept airtight. As a result, since the on-off valve that opens and closes the charging port can be eliminated, it is not necessary to open and close the on-off valve, and workability is improved. Further, it is possible to prevent a situation in which steam (vapor of the mixed solution heated by the heating means) is jetted out due to forgetting to close the on-off valve, so that safety can be improved.

(Claim 11) By setting the opening surface of the charging port lower than the lower end of the rectification means, it is possible to prevent the mixed solution which has flowed into the main body container from reaching the rectification means due to excessive charging of the mixed solution. . That is, if the mixed solution is charged too much, it overflows from the charging port before reaching the rectification means in the main body container, and further charging cannot be performed. This allows
It is possible to prevent impurities contained in the mixed solution from adhering to the rectification means and degrading the separation performance of the rectification means.

(Claim 12) By connecting the injection pipe and the main body container at a position lower than the inflow port by the communication pipe, the mixed solution accumulated in the trap is mixed with the mixed solution in the main body container through the communication pipe. Are the same. This allows
By installing a liquid level gauge in the charging pipe, it is possible to confirm the liquid level in the main body container from the outside.

(Claim 13) Since the intermediate connecting member made of a material having a low thermal conductivity is interposed between the charging port and the charging port of the charging pipe, the charging pipe from the main container is heated during heating of the mixed solution. The transfer of heat transferred through the intermediate connection member can be suppressed. As a result, it is possible to suppress the temperature rise in the vicinity of the charging port, so that it is safe for an operator to touch the charging port when the operation of charging the mixed solution is continued. Also, as the piping on the inlet side from the intermediate connection member,
An inexpensive material having a low heat resistant temperature can be used.

(Claim 14) By interposing the intermediate connection member in the injection pipe, the pipe on the injection port side of the intermediate connection member can be made of a transparent material. As a result, the liquid level can be confirmed from the outside, so that the transparent pipe itself can be used as a liquid level gauge.

[0032]

Next, an embodiment of the apparatus for concentrating and separating an organic / aqueous mixed solution of the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 is an overall schematic diagram of an apparatus for concentrating and separating an organic / aqueous mixed solution. The organic / aqueous mixed solution concentrating / separating apparatus 1 (hereinafter, referred to as the present apparatus) of the present embodiment is a main component of the antifreeze solution by concentrating engine cooling water (hereinafter referred to as cooling water) to which the antifreeze solution is added. Ethylene glycol is separated and extracted.

The apparatus 1 comprises a cylindrical main body container 2, a heating means 3 for heating the cooling water contained in the main body container 2, a rectification means 4 for increasing the water component concentration of the heated vaporized steam, and a rectification means. It is composed of a condensing means 5 for condensing a part of the retained steam to generate reflux water, and a draining means 6 for draining the separated water. The main body container 2 is provided with a charging port 7 for charging the cooling water therein and an opening / closing valve 8 for opening and closing the charging port 7.

The heating means 3 is, for example, an electric heater,
By receiving electric power and generating heat, the cooling water contained in the main body container 2 is heated and boiled. The rectification means 4 is composed of stainless wool 30 (see FIG. 3) filled in the middle of the main body container 2, and is heated by the heating means 3 by the stepless rectification action of the stainless wool 30. Separate antifreeze from vaporized vapor.

The condensing means 5 is a cooling fan installed above the main body container 2, and by blowing air toward the top plate 20 of the main body container 2, part of the vapor rectified by the rectifying means 4 is blown. Are condensed on the lower surface of the top plate 20. However, the lower surface of the top plate 20 is provided with a protrusion 22 that protrudes inside the top plate 20 by forming a recess 21 (see FIG. 2) in a concentric circle from the outside to the inside of the top plate 20. ing. Drainage means 6
Is connected to an upper side surface (upper part of the rectification means 4) of the main body container 2 and opens into the main body container 2, and a condenser 61 for condensing and liquefying vapor flowing through the drain pipe 60.
Consists of.

Next, the operation of this embodiment will be described. The opening / closing valve 8 is opened, and the cooling water (for example, an antifreeze solution concentration of about 30%) put in the main body container 2 through the charging port 7 is heated by the heating means 3 to be vaporized and rise as vapor. The vapor that has reached the rectification means 4 is condensed and re-evaporated by the rectification means 4 to separate ethylene glycol, and the water component concentration increases.

Specifically, as shown in FIG. 3, a part of the vapor adheres to the surface of the stainless wool 30 filled in the main body container 2 to form droplets, and then re-evaporates depending on the ambient temperature. The water evaporation amount at this time is governed by an evaporation curve in which the H ₂ O mole fraction in the gas phase increases as the H ₂ O mole fraction in the liquid phase increases, as shown in FIG. When this condensation and re-evaporation are repeated, the droplets (low-concentration ethylene glycol aqueous solution) retained by the stainless wool 30 absorb the ethylene glycol vapor, so that the water component ratio in the vapor increases.

When the partial pressure of ethylene glycol in the steam flowing into the rectification means 4 becomes high, the stainless wool 3
Since the absorption rate of the ethylene glycol vapor to the droplets attached to 0 becomes high, the ethylene glycol concentration becomes substantially constant at the outlet of the rectification means 4 regardless of the concentration of the antifreeze liquid (ethylene glycol concentration) in the cooling water.

The steam having a reduced ethylene glycol concentration after passing through the rectification means 4 flows out from the main body container 2 through the drainage pipe 60, but a part of the steam is blown by the condensation means 5 (cooling fan). It condenses on the lower surface of the top plate 20 that has been received and cooled. The steam flowing out through the drainage pipe 60 is condensed by the condenser 6
It is liquefied by being cooled by the cooling water flowing through 1 and treated as separated water. On the other hand, the vapor condensed on the lower surface of the top plate 20 is condensed to a certain degree and liquefied, and becomes droplets and falls by its own weight, and is retained by the stainless wool 30 as reflux water.

Since the top plate 20 is provided with the protrusions 22 protruding inward, most of the liquid droplets condensed on the lower surface of the top plate 20 are dropped along the protrusions 22. Therefore, even if the device 1 is installed in an inclined position and the top plate 20 of the main body container 2 is inclined, the condensed liquid droplets drop along the protrusions 22 to be substantially uniform. Reflux to stainless wool 30. On the other hand, when the flat top plate 20 without the protrusions 22 is inclined, the liquid droplets condensed on the lower surface of the top plate 20 travel along the lower surface of the top plate 20 and are dropped while flowing to the lower side of the top plate 20. That is, it is not uniformly dropped on the stainless wool 30.

As a result, the flat top plate 2 without the protrusions 22
At 0, the concentration distribution of the droplets attached to the stainless wool 30 cannot be kept constant and the water quality of the separated water deteriorates, whereas in the present device 1, the concentration of the droplets attached to the stainless wool 30 is decreased. Since the distribution can be kept constant at all times, as shown in FIG. 5, compared with the case where the protrusion 22 is not provided, the quality of the separated water can be constantly obtained without deterioration.

In this embodiment, the top plate 20 has a depression 21.
Although the projection 22 is provided by forming the above, the projection member 23 formed separately from the top plate 20 may be joined to the lower surface of the top plate 20 as shown in FIG. Further, in the present embodiment, the protrusions 22 are provided on the concentric circles, but a plurality of protrusions 22 may be provided so as to be scattered on the lower surface of the top plate 20.

(Second Embodiment) FIG. 7 is an overall schematic view of the present apparatus 1 according to the second embodiment. In this embodiment, in addition to the structure described in the first embodiment, a mesh-shaped (mesh-like) droplet blocking member 9 is further provided below the rectification means 4.
The splash blocking member 9 has a predetermined thickness and forms a three-dimensional mesh structure.

According to the present embodiment, the splash blocking member 9 can block the splashes that occur when the cooling water is heated by the heating means 3 and boils. That is, it is possible to prevent the splashes scattered by boiling from directly adhering to the stainless wool 30. On the other hand, the vapor that is heated and vaporized by the heating means 3 can reach the rectification means 4 through the droplet blocking member 9 as it is because the droplet blocking member 9 has a mesh structure.

As a result, the water component concentration of the reflux water dropped onto the stainless wool 30 can be kept high at all times, and the water purification performance of the rectification means 4 can be prevented from deteriorating. It is possible to stabilize the water quality (satisfies drainage standards). In addition, since the droplet blocking member 9 has a mesh structure, a rectification effect can be obtained, so that the quality of the separated water can be improved. In addition, in the case of this example, it can be said that the finer mesh structure can more reliably block the droplets, and the rectification effect is increased.

The splash blocking member 9 may be a punching metal 90 having a large number of small holes as shown in FIG. 8 in addition to the above mesh structure. In this case, the vaporized vapor passes through the small holes 91 of the punching metal 90 and reaches the rectification means 4, but the droplets due to boiling cannot pass through the small holes 91 and are blocked by the punching metal 90. To be done. As shown in FIG. 9, the droplet blocking member 9 may have a flat plate shape without providing a mesh or small holes. However, it is necessary to form a gap 92 on the outer circumference with respect to the inner wall surface of the main body container 2 so that the vaporized vapor can pass therethrough.

Further, when the splash blocking member 9 has a flat plate shape, the splash can be blocked and vaporized vapor can pass even if the structure does not form a gap with the inner wall surface of the main body container 2. I wish I could. That is, as shown in FIG. 10, a communication hole 93 (arbitrary shape) penetrating in the plate thickness direction may be formed at an appropriate position of the flat plate-shaped droplet blocking member 9. In this case, it can be said that the thicker the plate, the greater the effect of blocking the droplets.

In the second embodiment, the splash blocking member 9 is provided in addition to the structure described in the first embodiment (the structure in which the projection 22 is provided on the top plate 20), but the projection is provided on the top plate 20. It goes without saying that the effect of the droplet blocking member 9 can be obtained even with a flat configuration without 22.

(Third Embodiment) FIG. 11 is an overall schematic view of the present apparatus 1 according to the third embodiment. In the present embodiment, a U-shaped trap 10 is provided at the inflow port 2a provided in the main body container 2.
Is connected to the charging pipe 11, and a funnel-shaped charging port 7 is provided at the tip of the charging pipe 11. The inflow port 2a includes a heating chamber 2b for heating cooling water and a rectification means 4
Is opened in the side wall of the main body container 2.

The inlet pipe 11 is provided integrally with the inlet 7 (may be a separate body), the upstream pipe 12, the downstream pipe 13 connected to the inflow port 2a, and the upstream pipe 12 and the downstream pipe. It is composed of an intermediate pipe 14 (intermediate connecting member of the present invention) that forms a trap 10 by connecting 13 and U in a U shape. This input pipe 11 has a vertical direction (vertical direction)
The inlet 7 is lower than the lower end surface of the rectification means 4, and the inlet 2
It opens at a position higher than the lower end of a. That is, FIG.
As shown in Fig. 4, when the position of the lower end surface of the rectification means 4 is A, the position of the opening surface of the charging port 7 is B, and the lower end position of the inflow port 2a is C, the following positional relationship is established. There is. However, A, B, and C respectively represent the height from the reference plane (for example, the installation surface on which the apparatus 1 is installed).

[Equation 1] A> B> C

In the present apparatus 1 having this charging pipe 11, a certain amount of cooling water is stored in the charging pipe 11 (trap 10). That is, the cooling water introduced from the inlet 7 flows through the U-shaped trap 10 due to the gravity difference and flows into the heating chamber 2b in the main body container 2 from the inflow port 2a opening in the main body container 2. Even after the injection of water is completed, a certain amount of cooling water is stored in the U-shaped trap 10 located below the injection port 7. As a result, the cooling water collected in the trap 10 causes the charging port 7 and the inflow port 2a.
Since the space between and is closed and the inside of the main body container 2 can be kept airtight, the on-off valve 8 described in the first embodiment can be eliminated.

As a result, the workability is improved because the opening / closing operation of the opening / closing valve 8 is unnecessary, and when the opening / closing valve 8 is used, steam is ejected from the charging port 7 due to forgetting to close the opening / closing valve 8. In some cases, in this embodiment, the heating chamber 2
Even when the cooling water in b is in a boiling state and steam is violently generated, the steam does not spout from the inlet 7, and it can be said that the safety is high. Further, regardless of whether the operation is performed or not, the cooling water can be introduced at any time, so that the usability is improved as compared with the device using the opening / closing valve 8.

Furthermore, by providing the trap 10, the heat transfer distance from the inflow port 2a to the charging port 7 can be increased, and
By providing the intermediate pipe 14 with a material having a low thermal conductivity (for example, rubber), the heat transferred from the main body container 2 through the charging pipe 11 (the temperature inside the heating chamber 2b rises to about 150 ° C. during operation). Can be suppressed. As a result, there is almost no temperature rise near the inlet 7, and it is safe for an operator to touch the inlet 7 when the cooling water is continuously supplied. Further, since the temperature rise in the vicinity of the charging port 7 is suppressed, the upstream pipe 1 closer to the charging port 7 than the intermediate pipe 14 is.
For 2, it is also possible to use an inexpensive material having a low heat resistant temperature.

Since the opening surface of the inlet 7 is located below the rectification means 4, the liquid level of the cooling water flowing into the heating chamber 2b does not rise to the rectification means 4. That is, even if the cooling water is supplied too much, the cooling water overflows from the supply port 7 before reaching the lower end surface of the rectification means 4. Therefore, there is no possibility that impurities contained in the introduced cooling water adhere to the rectification means 4 and the separation ability of the rectification means 4 is deteriorated.

(Fourth Embodiment) FIG. 12 is an overall schematic view of the present apparatus 1 according to the fourth embodiment. In this embodiment, a liquid level gauge (not shown) is provided in the charging pipe 11 having the trap 10 described in the third embodiment so that the liquid level of the heating chamber 2b can be confirmed from the outside. is there. Specifically, as shown in FIG. 12, a communication pipe 15 that connects the downstream pipe 13 of the charging pipe 11 and the heating chamber 2b in the main body container 2 is provided, and the upstream pipe 12 is made of a transparent material ( For example, resin). However, the communication pipe 15
In order to reduce heat conduction, it is better to make the cross-sectional area as small as possible.

Connecting the downstream side pipe 13 and the heating chamber 2b to the communication pipe 1
By communicating at 5, the cooling water collected in the trap 10 has the same liquid level as the cooling water in the heating chamber 2b through the communication pipe 15 as long as it is above the connection position of the communication pipe 15. Therefore, it is possible to determine the liquid level of the heating chamber 2b by checking the liquid level in the upstream pipe 12 from the outside by using the transparent upstream pipe 12 with a scale or the like as a liquid level gauge. it can.

[Modification] In the third and fourth embodiments, the charging pipe 11 may be formed of a single continuous pipe as shown in FIG. Here, if a material having a low thermal conductivity is used as the pipe material and the wall thickness of the pipe is reduced to increase the length, the inlet 7
The temperature will drop and safety will increase. That is, the input pipe 11
It is not always necessary to use the intermediate pipe 14. In this case, in the fourth embodiment, the charging pipe 11
Since it is not possible to use a resin having a low heat-resistant temperature as the pipe material of the injection pipe 11, as shown in FIG.
It can be used as a liquid level gauge by forming a transparent viewing window 11a on the tube wall.

The trap 10 provided in the charging pipe 11 is
It is not necessary to limit to the U-shape, and for example, FIG.
The shapes shown in (b) and (c) may be used.

[Brief description of drawings]

FIG. 1 is an overall schematic diagram of the present apparatus.

FIG. 2 is a plan view of a top plate.

FIG. 3 is a schematic diagram illustrating the operation of rectification means.

FIG. 4 is a graph showing a water evaporation amount in the rectification means.

FIG. 5 is a graph comparing the water quality of the separated water when the top plate has a protrusion and when it does not have a protrusion.

FIG. 6 is a cross-sectional view of a top plate showing a modified example of a protrusion.

FIG. 7 is an overall schematic diagram of the present apparatus according to the second embodiment.

FIG. 8 is a plan view of a splash blocking member (modification).

FIG. 9 is a plan view of a splash blocking member (modification).

FIG. 10 is a plan view of a splash blocking member (modification).

FIG. 11 is an overall schematic diagram of the present apparatus according to the third embodiment.

FIG. 12 is an overall schematic diagram of the present apparatus according to the fourth embodiment.

FIG. 13 is a cross-sectional view showing a modified example of a charging pipe forming a trap.

FIG. 14 is a side view of a charging pipe showing a liquid level gauge.

15 (a), (b) and (c) are cross-sectional views showing modifications of the trap shape.

[Explanation of symbols]

 1 This device (concentrator / separator for organic / aqueous mixed solution) 2 Main body container 2a Inlet 3 Heating means 4 Fractionation means 5 Condensing means 7 Input port 9 Splash blocking member 10 Trap 11 Input pipe 14 Intermediate pipe (intermediate connecting member) ) 15 communication pipe 20 top plate 21 dent 22 projection (condensation liquid droplet lowering means) 23 projection member 90 punching metal (spray blocking member) 93 communication hole

Front page continued (72) Inventor Toshiharu Teshima 1-1 Showa-cho, Kariya city, Aichi Nihon Denso Co., Ltd. (72) Inventor Takanori Sakakibara 1-cho, Toyota city, Aichi Prefecture Toyota Automobile Co., Ltd. (72 ) Inventor Yoshihito Mitsuhara 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd.

Claims (14)

[Claims] Claims: 1. A) heating means for heating a mixed solution consisting of an organic substance and water; and b) steam vaporized by being heated by the heating means is repeatedly condensed and re-evaporated to obtain a water component concentration of steam. And c) a condensing means for condensing a part of the vapor rectified by the rectifying means on the lower surface of the top plate, and the liquid droplets condensed on the lower surface of the top plate are rectified by the rectifying means. An apparatus for concentrating and separating an organic-water-based mixed solution, characterized in that the top plate is provided with means for condensing liquid droplets that makes the means drop substantially uniformly. 2. The apparatus for concentrating and separating an organic material / water-based mixed solution according to claim 1, wherein the condensed droplet lowering means is a protrusion provided on the lower surface of the top plate. -Concentrator / separator for aqueous mixed solution. 3. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 2, wherein the protrusion is provided by forming a recess in the top plate. Concentrating and separating device. 4. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 2, wherein the protrusion is provided by attaching a protrusion member separate from the top plate to the lower surface of the top plate. An apparatus for concentrating and separating an organic / aqueous mixed solution, characterized by: 5. A) heating means for heating a mixed solution consisting of an organic substance and water; and b) provided above the heating means to substantially block splashes of the mixed solution boiled by the heating by the heating means. And a rectification means which is provided above the splash prevention member and which increases vapor water component concentration by repeating condensation and re-evaporation of vapor vaporized by being heated by the heating means. D) An apparatus for concentrating and separating an organic-water-based mixed solution, comprising a condensing means for condensing a part of the vapor rectified by the rectifying means on the lower surface of the top plate. 6. The apparatus for concentrating and separating an organic substance / water-based mixed solution according to claim 5, wherein the droplet blocking member is provided in a mesh shape. 7. The organic / aqueous mixed solution according to claim 5, wherein the droplet blocking member is a punching metal having a large number of small holes. Concentrating and separating device. 8. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 5, wherein the droplet blocking member is provided in a flat plate shape, and a gap is formed on the outer circumference with respect to the inner wall surface of the apparatus. An apparatus for concentrating and separating an organic / aqueous mixed solution, characterized by: 9. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 5, wherein the droplet blocking member is provided in a flat plate shape and connects the heating means side and the rectification means side. A device for concentrating and separating an organic / aqueous mixed solution, which is characterized in that holes are formed. 10. The apparatus for concentrating and separating an organic / aqueous mixed solution according to any one of claims 1 to 9, wherein a main body container is provided with an inlet for introducing the mixed solution on a side wall below the rectification means. A charging port for charging the mixed solution is provided at one end, and the other end is connected to the inflow port, and a trap is provided between the charging port and the inflow port to store a fixed amount of the mixed solution. An apparatus for concentrating and separating an organic substance / water-based mixed solution, characterized by comprising: 11. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 10, wherein the charging port is opened at a position lower than a lower end of the rectification means and higher than a lower end of the inflow port in the vertical direction. An apparatus for concentrating and separating an organic substance / water-based mixed solution, which has a surface. 12. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 10 or 11, further comprising a communication pipe communicating the charging pipe and the main body container at a position below the inlet. A concentration / separation device for an organic / water-based mixed solution, wherein the charging pipe is provided with a liquid level gauge capable of externally confirming the liquid level of the mixed solution displaced through the communication pipe. 13. The apparatus for concentrating and separating an organic material / water mixed solution according to claim 10, wherein the charging pipe is provided between the charging port and the inflow port.
An apparatus for concentrating and separating an organic / aqueous mixed solution, characterized in that an intermediate connecting member made of a material having a low thermal conductivity is interposed. 14. The apparatus for concentrating and separating an organic / aqueous mixed solution according to claim 13, wherein the charging pipe is made of a transparent member having the charging port side of the intermediate connecting member as the liquid level gauge. A device for concentrating and separating organic / aqueous mixed solutions, which is characterized in that