JP2003236301A - Distillation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distillation apparatus in which distilled water is efficiently recovered. <P>SOLUTION: The distillation apparatus is for producing distilled water 63 by evaporating raw water 61 to produce steam and condensing the steam. The distillation apparatus 1 has a plurality of wick plates 2. Each of the wick plates 2 is provided with a supply vessel 27 and an water absorption cloth 23 is stuck on the back surface 22 of the wick plate. The raw water 61 absorbed on the water absorption cloth 23 is evaporated by heating a 1st wick plate 201 to produce steam 62 and is condensed on the front surface 21 of a 2nd wick plate 202 to produced the distilled water 63. The raw water 61 on the water absorption cloth 23 is successively evaporated by the latent heat of the condensation and the steam 62 is condensed on the front surface 21 of the back adjacent wick plate 2 to produce the distilled water 63. The wick plate 2 has a water collecting gutter 24 for introducing the distilled water 63 to a distilled water recovering part above the lower part of the front surface and the lower end 231 of the water absorption cloth 23. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a distillation apparatus for producing distilled water by condensing water vapor generated by evaporating raw water.

[0002]

2. Description of the Related Art Conventionally, there is a distillation apparatus which produces distilled water by condensing water vapor generated by evaporating raw water such as seawater. As such a distillation apparatus 9, there is one in which a plurality of wick plates 2 are arranged as shown in FIGS. 9 and 10. In this distillation apparatus 9, a plurality of wick plates 2 are arranged so that a front surface 21 and a rear surface 22 face each other, and a water absorbing cloth 23 for impregnating the raw water 61 is attached to the rear surface 22.

When performing distillation by the distillation device 9, raw water 61 is supplied to the water absorbing cloth 23 of each wick plate 2. Then, the first wick plate 201 at the top of the plurality of wick plates 2 is heated to heat the first wick plate 201.
The raw water 61 impregnated in the water absorbing cloth 23 provided in the above is evaporated to generate water vapor 62, and the water vapor 62 is condensed on the front surface 21 of the second wick plate 202 next to the first wick plate 201 to distill water. 63 is generated.

Further, the raw water 61 impregnated in the water absorbing cloth 23 of the second wick plate 202 is evaporated by latent heat of condensation due to the condensation of the water vapor 62 to generate the water vapor 62, and the water vapor 62 is generated in the second wick plate 202. Distilled water 6 is condensed on the front surface 21 of the third wick plate 203 adjacent to the rear side.
3 is generated. Similarly, the raw water 61 of the water absorbing cloth 23 is sequentially evaporated by latent heat of condensation to condense the water vapor 62 on the front surface 21 of the wick plate 2 next to the rear, thereby producing distilled water 63.

[0005]

However, in the conventional distillation apparatus 9 described above, the raw water 61 to the generated distilled water 63 is
It is difficult to reliably prevent the contamination of Therefore, it is difficult to efficiently collect the distilled water 63. Further, it is necessary to supply the raw water 61 to each wick plate 2 and to adjust the supply amount. Therefore, there is a problem that it is difficult to perform efficient distillation.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a distillation apparatus capable of efficiently collecting distilled water.

[0007]

A first invention is a distillation apparatus for producing distilled water by condensing water vapor generated by evaporating raw water, and the distillation apparatus is arranged such that a front surface and a rear surface are opposed to each other. The wick plate has a plurality of wick plates, and the wick plate is provided with a supply box for receiving the raw water above the wick plate, and a water absorbing cloth for impregnating the raw water is attached to the rear surface of the wick plate. One end of the cloth is arranged inside the supply box, and the first wick plate at the top of the plurality of wick plates is heated to evaporate the raw water impregnated in the water absorbing cloth provided on the first wick plate. To generate water vapor, condense the water vapor on the front surface of the second wick plate next to the first wick plate to generate distilled water, and use the latent heat of condensation due to the condensation of the water vapor to absorb water on the second wick plate. Impregnated in Water is evaporated to generate steam, the water vapor is condensed in front of the third wick plate next after the second wick plate generates distilled water, sequentially,
It is configured to generate distilled water by evaporating the raw water of the water absorbing cloth by the latent heat of condensation and condensing the water vapor on the front surface of the next wick plate, which is the lower part of the front surface and A water collecting trough that receives the distilled water and guides it to the distilled water collecting portion is arranged above the lower end of the water absorbing cloth, and the wick plate is provided with notched end portions at the corners of the lower side. In the distillation apparatus, the downstream end of the water collecting trough is projectingly arranged at the cutout end (claim 1).

Next, the function and effect of the present invention will be described.
In the distillation apparatus, the water collecting gutter is arranged above the lower end of the water absorbing cloth attached to the wick plate. As a result, there is no possibility that the excess raw water that falls from the lower end of the water absorbing cloth on the wick plate adjacent to the front side will fall into the water collecting trough. Therefore, it is possible to prevent the raw water from being mixed with the distilled water in the water collecting trough.

Further, when the distilled water is introduced from the downstream end of the water collecting gutter arranged above the lower end of the water absorbing cloth to the distilled water collecting part, the distilled water and the raw water can be easily separated. Can be done. That is, since the portion where the distilled water flows out is above the lower end of the water absorbing cloth where the raw water flows down, it is possible to easily separate the distilled water and the raw water. As a result, distilled water can be efficiently recovered.

Further, the wick plate is provided with the notched end portion, and the downstream end of the water collecting trough is arranged at the notched end portion. Therefore, the distilled water flowing out from the downstream end of the water collecting trough and the raw water falling from the water absorbing cloth can be easily separated. As a result, distilled water can be collected more efficiently. Further, since the water collecting trough can be made shorter than the width of the wick plate, the distillation apparatus can be downsized.

As described above, according to the present invention, it is possible to provide a distillation apparatus capable of efficiently collecting distilled water.

A second invention is a distillation apparatus for producing distilled water by condensing water vapor generated by evaporating raw water, wherein the distillation apparatus comprises a plurality of sheets arranged with their front and rear surfaces facing each other. A wick plate, the wick plate having a supply box for receiving the raw water above the wick plate;
A water-absorbent cloth impregnated with the raw water is attached to the rear surface of the wick board, and one end of the water-absorbent cloth is arranged inside the supply chamber, and the first wick board is the first of the plurality of wick boards. Is heated to evaporate the raw water impregnated in the water absorbing cloth provided on the first wick plate to generate water vapor, and the water vapor is condensed on the front surface of the second wick plate next to the first wick plate. Distilled water is generated and the raw water impregnated in the water absorbing cloth of the second wick plate is evaporated by latent heat of condensation due to the condensation of the steam to generate steam, and the steam is generated by the third wick next to the second wick plate. Distilled water is generated by condensing on the front surface of the plate, the raw water of the water absorbing cloth is sequentially evaporated by latent heat of condensation, and steam is condensed on the front surface of the wick plate next to the wick plate to generate distilled water. Is constructed and, and, in the supply boxes and the overflow portion is formed, by supplying the raw water to said supply boxes formed in said first wick plate,
By overflowing the raw water from the overflow section of the supply box, the raw water is indirectly supplied to the supply box of the second wick plate, and the supply boxes of the respective rear wick plates are similarly similarly provided on the front side. In the distillation apparatus, the raw water can be sequentially and indirectly supplied by overflowing the raw water from an overflow portion in the supply box of the wick plate (claim 3).

The above-mentioned distillation apparatus has an overflow section in the supply box of each wick plate, and the raw water can be sequentially overflowed and supplied from the overflow section to the supply box of the rear wick plate. Therefore, a large amount of raw water, that is, raw water corresponding to the amount of raw water evaporated in all the wick plates may be supplied to the supply chamber of the first wick plate. Therefore, it is not necessary to adjust the amount of raw water to be supplied in small amounts for each wick plate, and it is possible to stably supply an appropriate amount.

As a result, raw water can be efficiently supplied, and distilled water can be efficiently collected. Further, it is not necessary to provide a mechanism for supplying the raw water to the supply chamber little by little, and a distillation apparatus having a simple structure can be obtained. In addition, there is no possibility of "clogging of raw water" (see Comparative Example 3) that may occur due to the provision of a mechanism for supplying raw water little by little. As a result, distilled water can be efficiently recovered.

In the above distillation apparatus, the first
By supplying raw water to the supply boxes of the wick plates, the raw water can be indirectly supplied to the supply boxes of the rear wick plates. Therefore, it is only necessary to directly supply the raw water to the first wick plate, and it is not necessary to individually supply the raw water to each wick plate. Therefore, distillation can be performed efficiently. Moreover, the structure of the distillation apparatus can be simplified.

As described above, according to the present invention, it is possible to provide a distillation apparatus capable of efficiently collecting distilled water.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION In the above-mentioned first invention (Claim 1), raw water means water as a raw material for producing distilled water, for example, seawater. Further, in the present specification,
The direction from the first wick plate to the second wick plate and the third wick plate is expressed as "rear" and the opposite direction is expressed as "front".

The water collecting trough is attached as a separate component from the wick plate body, and the side wall of the water collecting trough joined to the wick plate body has the wick plate at the cutout end. It is preferable that a notched concave portion or a protruding portion is provided at a joint portion with the side portion of the main body (claim 2).

In this case, distilled water flowing along the upper surface of the side wall of the water collecting trough can be dropped into the water collecting trough at the notch recess or the protruding portion. As a result, distilled water can be collected more efficiently.

Next, in the second invention (claim 3),
It is preferable that the wick plate is provided with a water collecting trough that receives the distilled water at a lower portion of a front surface (claim 4). In this case, distilled water can be efficiently recovered.

Further, the overflow portion has a bottom portion arranged above the supply box of the wick plate adjacent to the rear side, and the outflow hole for letting the raw water out to the supply box of the wick plate adjacent to the rear side is provided in the bottom section. Is preferably formed (Claim 5). In this case, the raw water can be efficiently supplied by overflowing the supply chamber of the wick plate adjacent to the rear side.

Further, it is preferable that the outflow hole has a shape in which the front is narrow and the rear is wide (claim 6). In this case, the raw water flowing out from the outflow hole can be prevented from flowing forward. As a result, the raw water can be more reliably supplied to the supply box on the rear wick plate.

A guide for guiding the raw water downward may be formed so as to project downward at least at a part of the periphery of the outflow hole (claim 7). Also in this case, it is possible to prevent the raw water flowing out from the outflow hole from flowing forward. As a result, the raw water can be more reliably supplied to the supply box on the rear wick plate.

Further, it is preferable that the last wick plate at the end of the plurality of wick plates is not provided with the overflow portion (claim 8). In this case, a large amount of raw water is absorbed by the water absorbing cloth of the final wick plate.
Therefore, the final wick plate is further cooled to a low temperature. As a result, the final wick plate is more likely to be condensed, and the distillation can be performed more efficiently.

In the first invention (Claim 1) or the second invention (Claim 3), the raw water can be seawater (Claim 9). In this case, it is possible to provide a distillation apparatus capable of efficiently desalinating seawater.

The first wick plate is preferably constructed so as to be heated by solar heat (claim 10). In this case, it is possible to utilize a natural energy or a renewable energy and to provide a distillation apparatus that does not harm the environment.

Further, it is preferable that the water absorbing cloth has a comb-shaped dipping portion arranged inside the supply chamber, and the amount of the raw water absorbed by the water absorbing cloth is adjusted (claim) Item 11). In this case, an appropriate amount of raw water for the amount of heat applied to the wick plate can be supplied to the water absorbing cloth. That is, by preventing a large amount of raw water from being supplied to the water absorbing cloth with respect to the above heat quantity, it is possible to prevent the non-evaporated raw water from taking an extra heat quantity. On the contrary, by not reducing the supply of raw water to the water absorbing cloth, a sufficient amount of raw water can be evaporated. As a result, it is possible to provide a distillation apparatus with even higher distillation efficiency.

Further, it is preferable that a spacer is provided on the front surface of the wick plate to prevent contact between the front surface of the wick plate and the water absorbing cloth arranged on the front adjacent wick plate. (Claim 12). In this case, it is possible to prevent the water absorbent cloth from coming into contact with the front surface of the wick plate that is next to the rear, so that there is no possibility that the raw water in the water absorbent cloth is mixed with the distilled water on the front surface of the wick plate. As a result, it is possible to obtain a distillation apparatus having even higher distillation efficiency. Further, the spacer serves as a rib for reinforcing the wick plate, and can improve the strength of the wick plate. Furthermore, water vapor can be condensed on the surface of the spacer, and the area where condensation occurs becomes large. This improves the distillation efficiency. Further, by providing the spacers, the front and rear wick plates can be arranged close to each other. As a result, by increasing the thermal gradient between the wick plates, heat transfer is improved and distillation efficiency can be improved.

[0029]

EXAMPLES Example 1 A distillation apparatus according to an example of the present invention will be described with reference to FIGS. The distillation apparatus 1 of this example produces distilled water 63 by condensing steam 62 generated by evaporating raw water 61.

As shown in FIG. 1, the distillation apparatus 1 has a plurality of wick plates 2 arranged so that a front surface 21 and a rear surface 22 face each other. As shown in FIGS. 1 and 2, the wick plate 2 is provided with a supply box 27 for receiving the raw water 61 above the wick plate 2. Further, a water absorbing cloth 23 for impregnating the raw water 61 is attached to the rear surface 22 of the wick plate 2, and one end of the water absorbing cloth 23 is arranged inside the supply box 27.

The first wick plate 201 at the top of the plurality of wick plates 2 is heated to evaporate the raw water 61 impregnated in the water absorbing cloth 23 provided on the first wick plate 201 to generate water vapor 62. Let The water vapor 62 is condensed on the front surface 21 of the second wick plate 202 adjacent to the rear side of the first wick plate 201 to generate distilled water 63. The raw water 61 impregnated in the water absorbing cloth 23 of the second wick plate 202 is evaporated by the latent heat of condensation due to the condensation of the water vapor 62 to generate the water vapor 62. The steam 62 is added to the second
Distilled water 63 is generated by condensing on the front surface 21 of the third wick plate 203 adjacent to the rear side of the wick plate 202. Sequentially,
The raw water 61 of the water absorbing cloth 23 is evaporated by latent heat of condensation, and the water vapor 62 on the front surface 21 of the wick plate 2 next to the water vapor 62
Is condensed to produce distilled water 63.

The wick plate 2 is provided with a water collecting trough 24 which is a lower part of the front surface 21 and above the lower end 231 of the water absorbing cloth 23. The water collecting trough 24 receives the distilled water 63 and guides it to the distilled water recovery unit 11 (FIG. 2).

As shown in FIG. 2, the water collecting trough 24 is arranged so as to be inclined with respect to the left-right direction. The water collecting trough 24 is attached as a separate component from the main body of the wick plate 2. The wick plate 2 is shown in FIG.
As shown in FIG. 5, a cutout end 29 is provided at the corner of the lower side, and the downstream end 241 of the water collecting trough 24 is projectingly arranged in the cutout end 29.

The raw water 61 is seawater. Also,
The first wick plate 201 is configured to be heated by solar heat. The wick plate 2 is made of stainless steel having high thermal conductivity, and the water absorbing cloth 23 is flannel cloth.

In the distillation apparatus 1, for example, eight wick plates 2 are arranged in front and rear so as to be substantially parallel to each other. As shown in FIGS. 1 and 3, the front surface 21 of the wick plate 2 is provided with a spacer 18 for preventing contact between the front surface 21 and the water absorbing cloth 23 disposed on the front adjacent wick plate 2. Is provided. The spacer 18 is made of stainless steel.
It is arranged vertically. The raw water 61 in the water absorbent cloth 23 flows down through the water absorbent cloth 23 due to the capillary phenomenon in the water absorbent cloth 23 and the hydrophilicity of the water absorbent cloth 23 is higher than that of the wick plate 2, and the spacers 18 come into contact with each other. Even if it does, it does not move to the front surface 21 of the rear wick plate 2 through the spacer 18.

Further, as shown in FIGS. 4 and 5, the water absorbing cloth 23 has a side portion 25 on the rear surface 22 of the wick plate 2.
Has not formed. The width of the side portion 25 not forming the water absorbing cloth 23 is, for example, 20 to 30 mm. The side edge portion 25 is provided with a sealing material 26 that is in close contact with the wick plate 2 adjacent to the front side. As a result, heat insulation between adjacent wick plates 2 is achieved, and evaporation efficiency is improved.
The sealing material 26 is made of urethane rubber or the like having a width of about 15 to 25 mm.

Since the sealing material 26 can be directly adhered to the wick plate 2 by not disposing the water absorbing cloth 23 on the side portion 25 as described above, a great heat insulating effect can be obtained. As shown in FIG. 8, a water absorbent cloth 23 may be attached over the entire left and right width of the rear surface 22 of the wick plate 2.

In this case, as shown in FIG. 7, the water absorbing cloth 23 is interposed between the sealing material 26 and the wick plate 2, but the heat insulating effect is sufficiently exhibited. Also,
In this case, the water-absorbent cloth 23 is in contact with the seal material 26, but the raw water 61 of the water-absorbent cloth 23 travels only in the water-absorbent cloth 23 due to the capillary phenomenon and travels through the seal material 26 to the next adjacent wick plate 2. It doesn't flow.

As shown in FIGS. 1 and 8, the water collecting gutter 2
4 has a gap between it and the water absorbing cloth 23 arranged on the wick plate 2 adjacent to the front, but it may be in contact therewith. Even in this case, the raw water 61 in the water absorbing cloth 23 travels only in the water absorbing cloth 23 due to the capillary phenomenon and does not flow into the water collecting trough 24.

As shown in FIG. 2, a raw water tank 12 is provided above the distillation apparatus 1, and an appropriate amount of raw water 61 is fed from the raw water tank 12 to the supply box 27 through the supply pipe 13. To supply. The raw water 61 can be supplied to the raw water tank 12 using, for example, a pump or manually pumped (not shown). At this time, a large tank (not shown) may be interposed between the raw water tank 12 and the pump.

Further, the supply box 27 may be provided with a water level confirmation means for confirming the water level of the raw water 61 (not shown). With this, the raw water 61
It is possible to adjust the supply amount of. As the water level confirmation means, for example, a transparent water surface window or a float can be used. Further, below the wick plate 2, an excess raw water receiver 14 for receiving the excess raw water 61 flowing down from the wick plate 2 is provided.

Next, the function and effect of this example will be described. In the distillation apparatus 1, as shown in FIGS. 1 and 2, the water collecting gutter 24 is a water absorbing cloth 2 attached to the wick plate 2.
3 is disposed above the lower end 231. As a result, the lower end 23 of the water absorbent cloth 23 on the wick plate 2 adjacent to the front is
There is no possibility that the surplus raw water 61 falling from No. 1 will fall into the water collecting trough 24. Therefore, it is possible to prevent the raw water 61 from being mixed with the distilled water 63 in the water collecting trough 24.

When the distilled water 63 is introduced from the downstream end 241 of the water collecting trough 24, which is arranged above the lower end 231 of the water absorbing cloth 23, to the distilled water collecting section 11, the distilled water 63 is used. And the raw water 61 can be easily separated. That is, since the downstream end 241 where the distilled water 63 flows out is above the lower end 231 of the water absorbing cloth 23 from which the raw water 61 flows down, the distilled water 6
3 and the raw water 61 can be easily separated. As a result, the distilled water 63 can be efficiently collected. That is, a distillation apparatus 1 capable of efficiently desalinating seawater
Can be provided.

Further, the wick plate 2 has the structure shown in FIGS.
As shown in FIG. 5, the cutout end portion 29 is provided, and the downstream end 241 of the water collecting trough 24 is arranged so as to project from the cutout end portion 29. As a result, the downstream end 241 of the above water collecting trough 24
It is possible to easily separate the distilled water 63 flowing out from the raw water 61 falling from the water absorbing cloth 23. Therefore,
The distilled water 63 can be collected more efficiently. That is, as shown in FIG. 11, it becomes easy to guide the raw water 61 to the surplus raw water receiver 14 and the distilled water 63 to the distilled water recovery unit 11. Further, since the water collecting trough 24 can be made shorter than the width of the wick plate 2, the distillation apparatus 1
Can be miniaturized.

Further, on the front surface 21 of the wick plate 2,
The spacer 18 is provided. Therefore, it is possible to prevent the water absorbent cloth 23 from coming into contact with the front surface 21 of the wick plate 2 next to the rear, so that the raw water 61 of the water absorbent cloth 23 is mixed with the distilled water 63 on the front surface 21 of the wick plate 2. There is no fear. This makes it possible to obtain the distillation apparatus 1 having a higher distillation efficiency.

Further, the spacer 18 serves as a rib for reinforcing the wick plate 2 and can improve the strength of the wick plate 2. Furthermore, the water vapor 62 can be condensed also on the surface of the spacer 18, and the area where condensation occurs becomes large. This improves the distillation efficiency. Further, by providing the spacer 18, the front and rear wick plates 2 can be arranged close to each other. Thus, by increasing the heat gradient between the wick plates 2, heat transfer is improved and distillation efficiency can be improved.

Further, since the first wick plate 201 is heated by solar heat, it is possible to utilize the natural energy or the renewable energy, and it is possible to provide the distillation apparatus 1 which does not harm the environment.

As described above, according to this example, it is possible to provide a distillation apparatus capable of efficiently collecting distilled water.

(Comparative Example 1-1) This example is an example of a distillation apparatus 9 in which the lower end of the wick plate 2 is bent to form a water collecting trough 24, as shown in FIGS. 9 and 10. That is, the water collecting trough 24 is formed below the lower end 231 of the water absorbing cloth 23 arranged on the wick plate 2. Others are Example 1
Is the same as.

In this case, as shown in FIG. 9, the excess raw water 61 that drops from the lower end 231 of the water absorbing cloth 23 of the wick plate 2 adjacent to the front may drop into the water collecting trough 24. Therefore, the distilled water 63 in the water collecting trough 24
There is a risk that the raw water 61 will be mixed in.

Further, as shown in FIG. 10, the wick plate 2
Downstream end 24 of the above water collecting trough 24 formed by bending the lower end of the
When the distilled water 63 is guided to the above-mentioned distilled water recovery unit 11 from 1, it is difficult to separate the distilled water 63 and the raw water 61. That is, it is difficult to arrange the distilled water recovery unit 11 so that only the distilled water 63 falls into the distilled water recovery unit 11. As a result, it becomes difficult to efficiently collect the distilled water 63.

Further, when the water absorbing cloth 23 swells backward, there is a possibility that it may come into contact with the front surface 21 of the wick plate 2 adjacent to the rear side. As a result, the front surface 21 of the wick plate 2 is
Distilled water 63 in the raw water 61 in the absorbent cloth 23
May mix in and reduce the distillation efficiency.

On the other hand, according to the first embodiment, such a problem is solved and the distilled water can be efficiently recovered as described above.

(Comparative Example 1-2) In this example, as shown in FIG. 12, the wick plate 2 is not provided with the notched end portion shown in the above-mentioned Embodiment 3 and the downstream end 241 of the water collecting trough 24 is provided with the wick plate 2. It is an example arranged on the front surface 24 of the. In this case, as shown in FIG. 12, the excess raw water 61 flowing down from the lower end 231 of the water absorbent cloth 23 may drop along the lower side of the wick plate 2 into the distilled water recovery unit 11. On the contrary, water collection gutter 2
There is a possibility that the distilled water 63 flowing out from the downstream end 241 of the No. 4 will travel along the front surface 21 of the wick plate 2 and fall into the surplus raw water receiver 14. Therefore, it becomes difficult to collect distilled water efficiently.

On the other hand, in the first embodiment, such a problem is solved by providing the wick plate 2 with the notched end portion 29 (FIG. 11), and the distilled water is efficiently recovered as described above. be able to.

(Embodiment 2) In this embodiment, as shown in FIGS. 13 and 14, the side wall 242 of the water collecting trough 24 joined to the main body of the wick plate 2 has the wick plate 2 on the side close to the downstream end 241. At the joint portion with the side portion 25 of the main body, the notch recess 2
This is an example in which 45 or the protruding portion 246 is provided. Others are the same as in the first embodiment.

In this case, as shown in FIGS. 13 and 14, the distilled water 63 flowing along the upper surface 243 of the side wall 242 of the water collecting trough 24 is collected in the notch recess 245 or the protruding portion 246. It can be dropped into the gutter 24. As a result, the distilled water 63 is reliably guided to the distilled water recovery unit 11, and the distilled water 63 can be recovered more efficiently. Other than that, the same effects as those of the first embodiment are obtained.

(Comparative Example 2) As shown in FIG. 15, this example is an example in which the notch recess 245 or the protruding portion 246 shown in Embodiment 2 is not provided. In this case,
The upper surface 24 of the side wall 242 of the water collecting trough 24 as shown in FIG.
The distilled water 63 flowing along 3 may fall behind the wick plate 2 at the portion where the water collecting trough 24 projects from the wick plate 2. Since the distilled water 63 that has fallen cannot be recovered, it may be difficult to sufficiently improve the recovery efficiency of the distilled water. On the other hand, according to the second embodiment, such a problem is solved, and the distilled water can be efficiently collected as described above.

(Embodiment 3) This embodiment is an example of a distillation apparatus 10 in which an overflow section 28 is formed in a supply box 27 arranged on a wick plate 2 as shown in FIGS.
The distillation apparatus 10 is configured so that raw water 61 can be supplied to each wick plate 2 as described below.

That is, first, the raw water 61 is supplied to the supply chamber 27 formed on the first wick plate 201, and the supply chamber 27 is supplied.
The raw water 61 is caused to overflow from the overflow section 28. As a result, the raw water 61 is indirectly supplied to the supply chamber 27 of the second wick plate 202. Similarly, the raw water 61 is sequentially and indirectly supplied to the supply chamber 27 of each rear wick plate 2 by overflowing the raw water 61 from the overflow portion 28 of the supply chamber 27 of the wick plate 2 adjacent to the front. be able to.

As shown in FIGS. 16 and 17, the overflow portion 28 has a bottom portion 281 arranged above the supply chamber 27 of the wick plate 2 adjacent to the rear side. The bottom portion 281 is formed with an outflow hole 282 through which the raw water 61 flows out to the supply chamber 27 of the wick plate 2 adjacent to the rear side. 17 and 1
As shown in FIG. 8, the outflow hole 282 has a shape that is narrow at the front and wide at the back, and has a substantially triangular shape. The shape of the outflow hole 282 may be, for example, a substantially trapezoidal shape shown in FIG. 20 or a substantially tree leaf shape shown in FIG. May be.

Further, even if the shape is other than the above-mentioned "narrow front and wide rear", as shown in FIGS. 22 and 23, at least a part of the periphery of the outflow hole 282 is provided with the raw water 61 downward. The guide 283 for guiding to may be formed so as to project downward. The guide 283
22 may be provided on the entire circumference of the outflow hole 282 as shown in FIG. 22, or may be provided on a part of it as shown in FIG.

Further, as shown in FIG. 24, the overflow portions 28 of the front and rear adjacent wick plates 2 are formed with outflow holes 282 so that the left and right positions are different. Further, as shown in FIG. 16, the last wick plate 208 at the end of the plurality of wick plates 2 is not provided with the overflow portion 28.

Further, as shown in FIG. 25 and FIG. 26, the water absorbent cloth 23 is provided so as to extend from both sides of the overflow portion 28 to the upper end portion of the wick plate 2 so that the supply chamber 2
Place one end inside 7. And depending on the case, as shown in FIGS. 27 and 28, the water absorbing cloth 23 is
The dipping portion 232 arranged inside the supply chamber 27 is formed in a comb shape to adjust the amount of the raw water 61 absorbed by the water absorbing cloth 23.

As shown in FIG. 16, the distillation apparatus 10 comprises a basin section 101 formed in front of the first wick plate 201 and a multiple effect section 102 formed behind it. The basin part 101 has a sunlight entrance window 15 made of paired glass above the basin part 101, and a basin 16 for storing raw water 61 is formed at the bottom part. Further, the multi-effect unit 102 has a raw water receiver 14 at the bottom thereof.
And has a rear wall 17 disposed behind the final wick plate 208. The rear wall 17 has a water collecting trough 174 similar to the water collecting trough 24 provided on the wick plate 2.

A raw water tank 12 is arranged above the first wick plate 201. Then, the raw water 61 is supplied from the raw water tank 12 to the supply chamber 27 of the first wick plate 201 through the raw water pipe 13. In addition, the above collection gutters 24, 17
Below the downstream end 241 of No. 4, the distilled water recovery part 11 is arrange | positioned similarly to Example 1 (refer FIG. 2).

When the distillation apparatus 10 is used for distillation, sunlight is made incident through the sunlight incident window 15 in the basin section 101 to evaporate the raw water 61 in the basin 16. The water vapor 62 generated thereby is condensed as distilled water 63 in the first wick plate 201. The distilled water 63 is collected by the water collecting trough 24 provided on the first wick plate 201.

Further, the first wick plate 201 is heated by the sunlight 3 incident through the sunlight incident window 15. As a result, the raw water 61 impregnated in the water absorbing cloth 23 of the first wick plate 201 is evaporated and becomes steam 62. The water vapor 62 is condensed on the second wick plate 202 to obtain distilled water 63. As described above, in the plurality of wick plates 2 arranged further rearward, the distilled water 63 is recovered by sequentially repeating evaporation and condensation by latent heat of condensation.

Further, the water vapor 62 evaporated in the final wick plate 208 has the rear wall 17 arranged behind it.
And condensed by the water collecting gutter 174 of the rear wall 17 as distilled water 63. Others are the same as in the first embodiment.

Next, the function and effect of this example will be described. The distillation apparatus 10 has an overflow section 28 in the supply box 27 of each wick plate 2. Then, from the overflow part 28 to the supply box 27 of the rear wick plate 2,
The raw water 61 can be supplied by overflowing. Therefore, the supply box 27 of the first wick plate 201 is
In addition, a large amount of raw water 61, that is, the raw water 61 corresponding to the amount of raw water 61 evaporated in all the wick plates 2 may be supplied. Therefore, it is not necessary to adjust the amount of raw water 61 to be supplied little by little for each wick plate 2, and an appropriate amount can be naturally and stably supplied.

As a result, the raw water 61 can be efficiently supplied and the distilled water 63 can be efficiently recovered. Further, it is not necessary to provide a mechanism for supplying the raw water 61 to the supply chamber 27 little by little, and the distillation apparatus 10 having a simple structure can be obtained. In addition, there is no possibility of "clogging of raw water" which may occur due to the provision of the mechanism for supplying the raw water 61 little by little. As a result, the distilled water 63 can be efficiently collected.

In the distillation apparatus 10, the raw water 61 is indirectly supplied to the supply chambers 27 of the rear wick plates 2 by supplying the raw water 61 to the supply chambers 27 of the first wick plate 201. can do. for that reason,
The raw water 61 may be directly supplied only by the supply chamber 27 of the first wick plate 201, and the raw water 61 may be individually supplied to each wick plate 2.
Need not be supplied. Therefore, distillation can be performed efficiently. Moreover, the structure of the distillation apparatus 10 can be simplified.

Further, since the overflow portion 28 has the outflow hole 282 in the bottom portion 281, the raw water 61 can surely be overflowed and supplied to the supply chamber 27 of the wick plate 2 adjacent to the rear side.

Further, as shown in FIG.
Since 82 has a shape in which the front is narrow and the rear is wide, it is possible to prevent the raw water 61 flowing out from the outflow hole 282 from flowing forward. That is, as shown in FIG. 18 and FIG.
The raw water 61 flowing out of the front portion 282f having a relatively small opening area flows obliquely backward so as to be drawn by the raw water 61 flowing out of the rear portion 282b having a relatively large opening area. Thereby, the raw water 61 can be more reliably supplied to the supply box 27 of the wick plate 2 adjacent to the rear side.

Further, as shown in FIGS. 22 and 23, the guide 2 is provided on at least a part of the periphery of the outflow hole 282.
Even when 83 is provided, since the raw water 61 flowing out from the outflow hole 282 is guided downward, it can be prevented from flowing forward. As a result, the raw water 61 can be surely supplied to the supply box 27 of the wick plate 2 adjacent to the rear side.

Further, as shown in FIG. 16, since the overflow portion 28 is not provided in the final wick plate 208 at the end, the water absorbing cloth 23 of the final wick plate 208 is
A large amount of raw water 61 is absorbed in the. Therefore, the final wick plate 208 is further cooled to a low temperature. Thereby, the final wick plate 208 is more likely to be condensed, and the distillation can be performed more efficiently.

Further, as shown in FIGS. 27 and 28, the water absorbing cloth 23 has a comb-shaped dipping portion 232 so that the amount of the raw water 61 absorbed by the water absorbing cloth 23 can be adjusted. That is, the amount of water absorption can be adjusted by changing the width of each comb tooth or changing the number of comb teeth. As a result, an appropriate amount of raw water 61 with respect to the amount of heat applied to the wick plate 2 is supplied to the water absorbing cloth 23.
Can be supplied to.

That is, by not supplying a large amount of raw water 61 to the water absorbing cloth 23 with respect to the above heat quantity, it is possible to prevent the raw water 61 that does not evaporate from taking an excessive heat quantity. On the contrary, by not reducing the supply of the raw water 61 to the water absorbing cloth 23, a sufficient amount of the raw water 61 can be evaporated. As a result, it is possible to provide a distillation apparatus with even higher distillation efficiency.

As described above, according to this example, it is possible to provide a distillation apparatus capable of efficiently collecting distilled water. Other than that, the same effects as those of the first embodiment are obtained.

(Comparative Example 3) As shown in FIG. 29, this example is an example of a distillation apparatus 90 in which the raw water 61 is individually supplied without providing an overflow portion in the supply chamber 27 of each wick plate 2. is there. As shown in FIG. 29, the raw water tank 12 is provided with a plurality of supply pipes 13, and the lower ends of the respective supply pipes 13 are connected to the supply chambers 27 of the respective wick plates 27.
It is located in.

In this case, the raw water 6 in each wick plate 2
In order to evaporate 1, the raw water 61 needs to be supplied to each supply chamber 27 in small amounts. Therefore, a needle hole 121 for adjusting the flow rate is provided between the raw water tank 12 and the supply pipe 13.
Is provided. The inner diameter of the needle hole 121 is as small as about 0.9 mm. Others are the same as in the first embodiment.

In this comparative example, since the raw water 61 is supplied to each of the supply chambers 27 of each wick plate 2, if a large amount of the raw water 61 is sent from the raw water tank 12 to the supply chamber 27, the raw water 61 overflows. There is. Therefore, it is necessary to provide a mechanism for adjusting and supplying the raw water 61 little by little.

As such a mechanism, as described above,
A small-diameter needle hole 121 is provided between the raw water tank 12 and the supply pipe 13, but the needle hole 121 is clogged with microorganisms or dust in the raw water 61.
There is also a problem. Furthermore, since at least the number of such needle holes 121 must be provided, the probability of clogging of the needle holes 121 increases. As described above, it is difficult for the distillation apparatus 90 of this example to efficiently perform distillation. On the other hand, according to the third embodiment described above, there is no such problem, and as described above, it is possible to provide a distillation apparatus that can efficiently collect distilled water.

(Comparative Example 4) In this example, as shown in FIGS. 30 and 31, the shape of the outflow hole 282 provided in the overflow portion 28 of the supply box 27 is circular. Others,
This is the same as the third embodiment.

In this case, as shown in FIGS. 30 and 31, the raw water 61 flowing out from the outflow hole 282 flows down while spreading in all directions by its surface tension. Therefore, there is also raw water 61 flowing down toward the front. This raw water 61
May not fall into the supply box 27 of the wick plate 2 next to the rear side. Therefore, it may be difficult to efficiently supply the raw water 61 to each wick plate 2.

On the other hand, the outflow hole 28 shown in the third embodiment
As described above, the raw water 61 can be prevented from flowing forward by adopting the two shapes (FIGS. 18 to 21) or providing the guide 283 (FIG. 22).
Thereby, the raw water 61 can be more reliably supplied to the supply box 27 of the wick plate 2 adjacent to the rear side.

(Experimental Example) In this example, as shown in Table 1, the distillation apparatus 10 of the present invention according to the third embodiment (FIG. 16).
And an example of a distillation apparatus 90 (FIG. 29) according to Comparative Example 3 above, in which the amount of distilled water recovered is compared. That is, the above two distillation apparatuses 10 and 90 are installed under the same conditions, and the amount of distilled water collected for one day is set to an arbitrary value of 10
Each day was measured. The results are shown in Table 1.

[0088]

[Table 1]

In Table 1, "ratio" means "Comparative Example 3".
Means the ratio of "the amount of distilled water recovered by the distillation apparatus 90 of Example 3" to "the amount of distilled water recovered by the distillation apparatus 90 of." As can be seen from Table 1, the distillation apparatus 10 of Example 3
Is 1.199 on average as compared with the distillation apparatus 90 of Comparative Example 3.
Double distilled water could be recovered. From this result, it is understood that the distillation apparatus 10 of the present invention can improve the distillation efficiency.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional explanatory view of a distillation apparatus according to a first embodiment.

FIG. 2 is a front explanatory view of the distillation apparatus according to the first embodiment.

FIG. 3 is a horizontal cross-sectional explanatory view of the distillation apparatus according to the first embodiment.

FIG. 4 is a front view of the wick plate according to the first embodiment.

FIG. 5 is a horizontal sectional view of the distillation apparatus according to the first embodiment.

FIG. 6 is a front view of the wick plate according to the first embodiment.

FIG. 7 is a horizontal sectional view of the distillation apparatus according to the first embodiment.

FIG. 8 is a vertical sectional view of the distillation apparatus according to the first embodiment.

FIG. 9 is a vertical cross-sectional explanatory view of a distillation apparatus in Comparative Example 1-1.

FIG. 10 is a front explanatory view of a distillation apparatus in Comparative Example 1-1.

FIG. 11 is a front view of the notched end portion of the wick plate according to the first embodiment.

FIG. 12 is a front view of a corner portion of a wick plate in Comparative Example 1-2.

FIG. 13 is a perspective view of a water collecting gutter provided with a cutout recess according to the second embodiment.

FIG. 14 is a perspective view of a water collecting gutter provided with a protrusion according to the second embodiment.

FIG. 15 is a perspective view of a water collecting gutter in Comparative Example 2.

FIG. 16 is a vertical cross-sectional explanatory view of a distillation apparatus according to the third embodiment.

FIG. 17 is a perspective view of a supply box according to the third embodiment.

FIG. 18 is an explanatory diagram of outflow holes in the third embodiment.

FIG. 19 is an explanatory view of the raw water flowing out from the outflow hole in the third embodiment.

FIG. 20 is an explanatory diagram of variations in the shape of the outflow hole in the third embodiment.

FIG. 21 is an explanatory diagram of variations in the shape of the outflow hole in the third embodiment.

FIG. 22 is an explanatory diagram of a guide provided on the entire circumference of the outflow hole in the third embodiment.

FIG. 23 is an explanatory diagram of a guide provided in a part of the periphery of the outflow hole in the third embodiment.

FIG. 24 is an explanatory diagram of the overflow of raw water as seen from the rear in Example 3.

FIG. 25 is a rear view of the wick plate according to the third embodiment.

FIG. 26 is a front view of the wick plate according to the third embodiment.

FIG. 27 is a rear view of the wick plate in which the dipping portion of the water absorbing cloth is formed in a comb shape in Example 3.

FIG. 28 is a front view of a wick plate in which a dipping portion of a water absorbing cloth is formed in a comb shape in Example 3.

FIG. 29 is an explanatory cross-sectional view of the distillation apparatus in Comparative Example 3.

FIG. 30 is an explanatory diagram of outflow holes in Comparative Example 4.

FIG. 31 is an explanatory view of raw water flowing out from an outflow hole in Comparative Example 4.

[Explanation of symbols]

1,10. ． ． Distillation equipment, 11. ． ． Distilled water recovery unit, 2. ． ． Wick board, 201. ． ． First wick board, 202. ． ． Second wick board, 203. ． ． 3rd wick board, 21. ． ． Front, 22. ． ． back face, 23. ． ． Absorbent cloth, 24. ． ． Water collecting gutter, 27. ． ． Supply box, 61. ． ． Raw water, 62. ． ． water vapor, 63. ． ． Distilled water,

Continued front page    (72) Inventor Katsuhiro Inamoto             6 Toyota Town, Toyota City, Aichi Prefecture Kyo Co., Ltd.             Yutaka Factory F-term (reference) 4D034 AA01 BA03 CA12 CA17                 4D076 BA08 BA15 BC27 CA13 CB02                       HA02 JA03

Claims (12)

[Claims] 1. A distillation apparatus for producing distilled water by condensing steam generated by evaporating raw water, wherein the distillation apparatus has a plurality of wick plates arranged so that a front surface and a rear surface are opposed to each other. The wick plate is provided with a supply box for receiving the raw water on the upper part thereof, and a water absorbing cloth for impregnating the raw water is attached to the rear surface of the wick plate, and one end of the water absorbing cloth is attached to the supply box. The first wick plate of the plurality of wick plates is heated to evaporate the raw water impregnated in the water absorbing cloth provided on the first wick plate to generate water vapor, The water vapor is condensed on the front surface of the second wick plate next to the first wick plate to generate distilled water, and the raw water impregnated in the water absorbing cloth of the second wick plate is evaporated by the latent heat of condensation due to the condensation of the water vapor. Water vapor Gas is generated and the water vapor is condensed on the front surface of the third wick plate adjacent to the second wick plate to generate distilled water. The raw water of the water absorbing cloth is sequentially evaporated by latent heat of condensation, and The wick plate is configured to generate distilled water by condensing water vapor on the front surface of the wick plate. The wick plate receives the distilled water at the lower part of the front surface and above the lower end of the water absorbing cloth. The wick plate is provided with a notch end at the corner of the lower side, and the downstream end of the notch is provided at the notch end. Is a protruding device. 2. The water collecting gutter according to claim 1, wherein the water collecting gutter is attached as a separate component from the wick plate body,
The side wall of the water collecting trough joined to the wick plate body is provided with a notch concave portion or a protrusion portion at a joint portion of the notch end portion with a side portion of the wick plate body. Distillation equipment. 3. A distillation apparatus for producing distilled water by condensing water vapor generated by evaporating raw water, wherein the distillation apparatus has a plurality of wick plates arranged so that a front surface and a rear surface are opposed to each other. The wick plate is provided with a supply box for receiving the raw water on the upper part thereof, and a water absorbing cloth for impregnating the raw water is attached to the rear surface of the wick plate, and one end of the water absorbing cloth is attached to the supply box. The first wick plate of the plurality of wick plates is heated to evaporate the raw water impregnated in the water absorbing cloth provided on the first wick plate to generate water vapor, The water vapor is condensed on the front surface of the second wick plate next to the first wick plate to generate distilled water, and the raw water impregnated in the water absorbing cloth of the second wick plate is evaporated by the latent heat of condensation due to the condensation of the water vapor. Water vapor Gas is generated and the water vapor is condensed on the front surface of the third wick plate adjacent to the second wick plate to generate distilled water. The raw water of the water absorbing cloth is sequentially evaporated by latent heat of condensation, and Is configured to generate distilled water by condensing water vapor on the front surface of the wick plate of the first wick plate, and an overflow portion is formed in the supply box. By supplying the raw water to the box and causing the raw water to overflow from the overflow portion of the supply box, the raw water is indirectly supplied to the supply box of the second wick plate and further supplied to the rear wick plates. Similarly, the raw water can be sequentially and indirectly supplied by causing the raw water to overflow from the overflow portion of the supply box of the wick plate adjacent to the front side in the same manner. Distillation apparatus, wherein you have earthenware pots configuration. 4. The wick plate according to claim 3,
A distillation apparatus, characterized in that a water collecting trough for receiving the above-mentioned distilled water is arranged at the lower part of the front surface. 5. The overflow section according to claim 3 or 4, wherein the overflow portion has a bottom portion arranged above the supply chamber of the wick plate adjacent to the rear side, and the raw water is provided to the wick plate adjacent to the rear side. A distilling device, characterized in that an outflow hole is formed to allow the outflow to the supply chamber. 6. The distillation apparatus according to claim 5, wherein the outflow hole has a shape with a narrow front and a wide back. 7. The distillation according to claim 5, wherein a guide for guiding the raw water downward is formed so as to project downward at least at a part of the periphery of the outflow hole. apparatus. 8. The method according to any one of claims 3 to 7,
The distillation apparatus, wherein the final wick plate at the end of the plurality of wick plates is not provided with the overflow section. 9. The method according to claim 1, wherein
The said raw water is seawater, The distillation apparatus characterized by the above-mentioned. 10. The distillation apparatus according to claim 1, wherein the first wick plate is configured to be heated by solar heat. 11. The water absorbing cloth according to claim 1, wherein the water absorbing cloth has a submerged portion arranged inside the supply chamber in a comb-teeth shape, and the water absorbing cloth forms the raw water. A distillation apparatus characterized in that the amount of water absorption is adjusted. 12. The wick plate according to claim 1, wherein the front surface of the wick plate prevents contact between the front surface of the wick plate and the water absorbing cloth arranged on the front adjacent wick plate. A distillation device, characterized in that a spacer is provided for it.