JP2014233663A - Neutralization apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a neutralization apparatus in which even when a bottom part of a housing chamber of a neutralizer is blocked, an acidic water can be stably discharged as a treatment water.SOLUTION: A neutralization apparatus 10 that includes a housing chamber 12 in which a granular neutralizer 11 is housed, and in which an acidic water 14 inflowing from an inlet 13 is neutralized by the neutralizer 11, discharged to an outside as a treatment water through a permeable structure A disposed to a bottom part of the housing chamber 12, is that a permeable structural B is disposed to a side wall of the housing chamber 12 to secure a flow channel of the treatment water, and a treatment water guide part 36 that guides the treatment water drained from the housing chamber 12 to an outside through the permeable structural B is disposed.

Description

The present invention relates to a neutralizer for neutralizing acidic water.

Conventionally, there is a heating apparatus that preheats a fluid with a latent heat exchanger and sends the preheated fluid to a sensible heat exchanger for heating. In this type of heating device, the combustion gas that has given heat energy to the fluid through the sensible heat exchanger further gives heat energy to the fluid when passing through the latent heat exchanger. Heating efficiency can be increased as compared with a heating device that does not include.
By the way, in the latent heat exchanger, water vapor in the combustion gas is condensed to generate drain water. Since this drain water is acidified by nitrogen oxides contained in the combustion gas, it needs to be drained after neutralization from the viewpoint of environmental conservation.

A neutralizer is used for the neutralization treatment of the drain water, and specific examples thereof are described in Patent Documents 1 and 2, for example.
In Patent Document 1, a storage chamber filled with a neutralizing agent (neutralizing material) is provided in the drain water discharge path, and the drain water is retained in the storage chamber to lengthen the reaction time, so that the drain water is reliably contained. A neutralizing device to be summed is described. Here, the neutralization device of this system has a structure for retaining drain water, so that the entire device is enlarged, and it is necessary to provide a heater so that the retained drain water does not freeze at low temperatures.

On the other hand, in the neutralization device described in Patent Document 2, drain water that has flowed into the storage chamber for the neutralizing agent passes without staying in the storage chamber. Accordingly, the entire apparatus can be reduced in size, and further, since no heater is required, the manufacturing cost can be reduced and the financial burden necessary for using the neutralizing apparatus can be reduced.
Moreover, the neutralization apparatus of patent document 2 is the auxiliary | assistant pipe | tube which guides drain water to a drain outlet via an overflow pipe directly from the bottom part of a storage chamber and leads drain water to a drain outlet. It has a discharge route. Then, depending on the amount of drain water flowing into the storage chamber, drain water is drained only by the main drain path or by the main drain path and the auxiliary drain path.

JP 2011-189291 A JP 2012-55787 A

However, in the neutralization device of Patent Document 2, when the bottom of the storage chamber is closed, drain water is drained only through the auxiliary discharge path, so that the total drainage capacity is reduced and neutralized. This causes a problem that the amount of drain water is reduced. The clogging of the bottom of the storage chamber is caused by, for example, the generation of a biofilm, and the generation of a biofilm is not limited to the neutralizer that treats drain water, but can also occur in other neutralizers that neutralize acidic water. This problem is a problem common to neutralizers that process acidic water other than drain water.
This invention is made | formed in view of this situation, Even if the bottom part of the storage chamber of a neutralizing agent obstruct | occludes, it aims at providing the neutralization apparatus which can discharge | emit acid water stably as treated water. .

The neutralization apparatus according to the present invention that meets the above object includes a storage chamber in which a granular neutralizing agent is stored, and neutralizes the acidic water flowing from the inlet with the neutralizing agent to the bottom of the storage chamber. In the neutralization apparatus which discharges as treated water to the outside through the provided permeable structure A, the permeable structure B is provided on the side wall of the accommodation chamber to secure the flow path of the treated water, and the permeable structure B is passed through. A treated water guide for guiding the treated water flowing out of the storage chamber to the outside is provided.

In the neutralization apparatus according to the present invention, it is preferable to include a rectifying member that guides the acidic water that has flowed into the storage chamber to the bottom of the storage chamber along the surface.

In the neutralization apparatus according to the present invention, it is preferable that irregularities are formed on the surface of the rectifying member.

In the neutralization apparatus according to the present invention, it is preferable that the rectifying member is a bar, and a spiral guide portion for guiding the acidic water is formed on the surface.

In the neutralization apparatus according to the present invention, a through hole through which the rectifying member is inserted is formed in a bottom portion of the storage chamber, and a part or the whole of a peripheral portion of the through hole is brought into non-contact with the rectifying member, and the treated water It is preferable to provide a gap through which.

In the neutralization apparatus according to the present invention, the treated water guide section is provided with a drain outlet for discharging the treated water that has passed through the water permeable structure A and the treated water that has passed through the water permeable structure B to the outside. It is preferred that

The neutralization apparatus according to the present invention includes an introduction pipe having an inlet and a water outlet for discharging the acidic water, and a water seal chamber for storing the acidic water sent to the storage chamber, It is preferable to be immersed in the acidic water stored in the water sealed chamber.

The neutralization apparatus according to the present invention is provided with a water permeable structure B on the side wall of the storage chamber to secure a flow path of the treated water, and a treated water guide portion that guides the treated water flowing out of the storage chamber through the water permeable structure B to the outside. Therefore, even if the water-permeable structure A is blocked, the acidic water can be neutralized and discharged stably as treated water to the outside.

It is a side cross section of the neutralization apparatus which concerns on one embodiment of this invention. It is a ZZ 'cross-sectional arrow view of FIG. (A) is explanatory drawing of the slit board which fixes the upper part of a bar, (B) is explanatory drawing of the water-permeable member provided in the bottom part. (A), (B) is explanatory drawing which shows the surface shape of a bar, respectively. (A) is explanatory drawing of the neutralization apparatus which concerns on a modification, (B) is explanatory drawing of a baffle plate, (C) is explanatory drawing of the baffle plate which concerns on a modification.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
As shown in FIGS. 1 to 3, the neutralization device 10 according to an embodiment of the present invention includes a storage chamber 12 in which a granular neutralizing agent 11 is stored, and drain water ( An example of acidic water 14 is a device that neutralizes 14 with a neutralizing agent 11 and discharges it as treated water to the outside through a through hole (an example of a water-permeable structure A) 27 a provided at the bottom of the storage chamber 12. Hereinafter, these will be described in detail.

As shown in FIG. 1, the neutralization device 10 includes a casing 15, and an introduction pipe 16 connected to a latent heat exchanger (not shown) is fixed to the casing 15. The introduction pipe 16 has at one end a water inlet 13 into which drain water 14 sent from a latent heat exchanger (that is, outside the neutralizing device 10) flows, and a water outlet 17 at which the drain water 14 is discharged at the other end. It has. The drain water 14 sent out from the latent heat exchanger flows into the casing 15 through the introduction pipe 16.

A water seal chamber 18 for storing drain water 14 discharged from the water outlet 17 of the introduction pipe 16 is provided in the casing 15, and the drain water 14 stored in the water seal chamber 18 contains the introduction of the introduction pipe 16. The water outlet 17 is immersed.
The outlet 17 of the introduction pipe 16 is immersed in the drain water 14 in the water seal chamber 18 when the pressure fluctuation occurs in the latent heat exchanger and the gas in the latent heat exchanger is introduced into the introduction pipe 16. This is to prevent the air from flowing into the casing 15 through the air. The pressure fluctuation in the latent heat exchanger occurs, for example, when ignition is performed by a heating device including the latent heat exchanger.

In the casing 15, a vertically long storage chamber 12 in which the neutralizing agent 11 is stored is provided next to the water seal chamber 18. In the present embodiment, the storage chamber 12 is formed in a rectangular tube shape, and the water sealing chamber 18 and the storage chamber 12 are separated by a partition plate 20 having an opening 19 formed in the upper portion, as shown in FIGS. It is partitioned.
When the drain water 14 newly flows into the water seal chamber 18 through the introduction pipe 16, the same amount of drain water 14 is sent from the water seal chamber 18 through the opening 19 to the storage chamber 12. Therefore, the water level of the drain water 14 in the water seal chamber 18 is maintained at the height position of the opening 19.

As shown in FIG. 1, the partition plate 20 is provided with a receiving member 21 that is disposed in the storage chamber 12 and is formed long toward the center of the storage chamber 12 in plan view. The drain water 14 that has passed through the opening 19 and has flowed into the storage chamber 12 from the water seal chamber 18 is guided by the receiving member 21 to the center of the storage chamber 12 in plan view. Therefore, the water seal chamber 18 stores the drain water 14 sent to the storage chamber 12.
In the present embodiment, the plurality of granular neutralizing agents 11 stored in the storage chamber 12 are calcium carbonate or cryogenic stone, and are brought into contact with the acidic drain water 14 to bring the drain water 14 into the middle. To sum up.

As shown in FIGS. 1 and 2, the storage chamber 12 is connected to a slit plate 22 arranged in a vertical direction with respect to the ceiling portion of the storage chamber 12 and a lower portion of the slit plate 22, and one side is A slit plate 23 is provided which is fixed to a side wall panel 33 which will be described later and the other side is fixed to the partition plate 20 and is disposed horizontally.
The interior of the storage chamber 12 is divided into two by slit plates 22 and 23, and a space in which a plurality of neutralizing agents 11 are stored and a space in which the receiving member 21 and the opening 19 are provided are partitioned by the slit plates 22 and 23. ing.

A plurality of slits (not shown) formed in the slit plate 22 and a plurality of slits 23 a (see FIG. 3A) formed in the slit plate 23 are based on the diameter of the neutralizing agent 11 not in contact with the drain water 14. Since the width is narrow, the slit plates 22 and 23 prevent the neutralizing agent 11 not in contact with the drain water 14 from entering the space where the receiving member 21 and the opening 19 are located. For this reason, even if the neutralizing device 10 before use is turned upside down during transportation or the like, the neutralizing agent 11 can be retained in the storage chamber 12.
In addition, the neutralizing agent 11 becomes small by contacting the drain water 14. Further, the neutralizing agent 11 is filled below the height position of the slit plate 23 in the space in which the neutralizing agent 11 is accommodated.

Further, as shown in FIGS. 1 and 2, a bar 24 having an axial center arranged in the vertical direction is provided in the storage chamber 12 in the vicinity of the center of the storage chamber 12 in a plan view. . The bar 24 is an example of a rectifying member that guides the drain water 14 flowing into the storage chamber 12 to the bottom of the storage chamber 12.
As shown in FIGS. 1 and 3A, the slit plate 23 is formed with a through hole 25, and the upper portion of the bar member 24 passes through the through hole 25. As for the through-hole 25, a peripheral part protrudes partially toward the center of the through-hole 25, and this protruded part contact | abuts to the bar 24, and has fixed the upper part of the bar 24. FIG.

A region of the peripheral portion of the through hole 25 that does not protrude to the center of the through hole 25 is not in contact with the rod member 24. By the region that is not in contact with the rod member 24, the peripheral portion of the through hole 25 and the rod member 24 are not contacted. A gap 26 is provided between them. Therefore, the drain water 14 guided to the center of the storage chamber 12 in plan view by the receiving member 21 and sent to the upper portion of the bar 24 descends along the surface of the bar 24 and passes through the gap 26. Then, the process proceeds below the slit plate 23.

Since the gap 26 is sized so that the non-contact neutralizer 11 does not pass through the drain water 14, the neutralizer 11 passes through the gap 26 even if the unused neutralizer 10 is turned upside down. There is no.
Further, the drain water 14 that does not pass through the gap 26 and travels in the direction away from the bar 24 through the upper surface of the slit plate 23 proceeds from the slit 23 a formed in the slit plate 23 to the lower side of the slit plate 23.

As shown in FIGS. 1 and 3B, a water permeable member 27 is provided at the bottom of the storage chamber 12, and a lower portion of the bar 24 is provided at the water permeable member 27 (that is, the bottom of the storage chamber 12). A through-hole 28 through which is inserted is formed. As for the through-hole 28, the peripheral part protrudes toward the center of the through-hole 28 partially.
The rod 24 having a circular cross section is designed to have a reduced diameter (reduced width) on the lower side from the height position through which the through hole 28 is inserted, and a reduced diameter portion 29 is formed. The bar 24 is supported by a portion protruding from the center of the through hole 28 at the peripheral edge of the through hole 28 coming into contact with the reduced diameter portion 29. In the present embodiment, the peripheral portion of the through hole 28 protrudes toward the center of the through hole 28 at four locations, and is in contact with the reduced diameter portion 29 of the bar 24.

On the other hand, the peripheral portion of the through hole 28 is not in contact with the bar member 24 except for the portion protruding to the center of the through hole 28, and the region between the peripheral portion of the through hole 28 and the bar member 24 depends on the region. Are provided with a plurality of gaps 30. The drain water 14 descending along the surface of the bar 24 passes through the gap 30 and proceeds to the lower side of the water permeable member 27.
In the present embodiment, the peripheral portion of the through hole 28 partially contacts the bar 24 and the bar 24 is fixed by the slit plate 23 and the water permeable member 27, but the bar 24 is only the slit plate 23. When fixing with, the whole peripheral part of the through-hole 28 may be non-contact with the bar 24. When the entire peripheral edge of the through hole 28 is not in contact with the bar 24, a gap through which the drain water 14 passes is formed on the entire circumference of the bar 24.
Therefore, the gap through which the drain water 14 passes can be provided by making a part or the whole of the peripheral edge of the through hole 28 non-contact with the bar 24.

In addition to the central through hole 28, the water permeable member 27 is formed with a plurality of through holes 27 a (slits in this embodiment), so that the drain water that has reached the water permeable member 27 in the storage chamber 12 is formed. 14 flows out from the storage chamber 12 through the gap 30 or the through hole 27a.
The gap 30 and each through-hole 27a have such a size that the non-contact neutralizing agent 11 that does not contact the drain water 14 passes through, and the non-contact neutralizing agent 11 that does not contact the drain water 14 flows out from the water permeable member 27 downward. Is preventing.
Most of the drain water 14 that has flowed into the storage chamber 12 through the surface of the bar 24 further passes through the surface of the bar 24 and reaches the height position of the water permeable member 27. For this reason, by providing the gap 30 around the bar 24 at the height position of the water permeable member 27, the drain water 14 smoothly flows out from the storage chamber 12 through the gap 30.

And since most drain water 14 descends along the surface of the bar 24 in the storage chamber 12, the neutralizing agent 11 close to the bar 24 is in a position having a distance to the bar 24. Compared with the neutralizing agent 11, a large amount of drain water 14 comes into contact with and becomes smaller quickly. When the neutralizing agent 11 in the vicinity of the bar 24 becomes smaller or disappears, the neutralizing agent 11 around it moves and is arranged in the vicinity of the bar 24. A state in which the sump 11 is in close proximity is ensured.

Here, the bar 24 has the same thickness in the region disposed in the storage chamber 12, but instead of the bar 24, the unevenness shown in FIG. 4A or the surface shown in FIG. It is also possible to use rods 24a and 24b in which spiral guide portions 31 shown in FIG.
In the case of the bar 24a provided with unevenness on the surface, the drain water 14 traveling along the surface of the bar 24a proceeds downward along the unevenness. And in the case of the bar 24b which provided the guide part 31 on the surface, the drain water 14 which propagates the surface of the bar 24b will be guided to the guide part 31, and will fall spirally.
Therefore, by providing unevenness and the guide part 31 on the surface, the path of the drain water 14 passing through the surface of the rods 24a and 24b in the unit length of the rods 24a and 24b becomes long, and the drain water 14 becomes a neutralizing agent. The opportunity to contact 11 increases. For this reason, the drain water 14 can be stably neutralized even if the length is shortened as compared with the rod 24 having no irregularities or guide portions on the surface. By shortening the length of the bar, the height of the neutralizing device 10 can be reduced, and as a result, the entire neutralizing device 10 can be made compact.

Further, as shown in FIG. 2, a plurality of through holes 34 through which the drain water 14 flows out from the storage chamber 12 are formed in the side wall panel 33 that forms the side wall of the rectangular cylindrical storage chamber 12. Each through-hole 34 is a vertically long slit and has a size that prevents the non-contact neutralizing agent 11 from passing through the drain water 14, but the shape of the through-hole 34 is not limited thereto.
In the present embodiment, a water permeable structure B is formed by the plurality of through holes 34, and the water permeable structure B secures a flow path of treated water for discharging treated water from the inside of the storage chamber 12 to the outside of the storage chamber 12. Yes.
Usually, the drain water 14 in the storage chamber 12 descends due to gravity, and most of the water passes through the through holes 27a and the gaps 30 provided in the water permeable member 27 as treated water (liquid obtained by neutralizing the drain water 14). , Flows out of the storage chamber 12.

However, the through-hole 27a and the gap 30 may be blocked due to the generation of a biofilm. When the through-hole 27a and the gap 30 are closed, the treated water passes through the through-hole 27a or the gap 30 and is stored in the storage chamber. Can't flow out of 12.
Therefore, a plurality of through holes 34 (that is, the water permeable structure B) are formed in the side wall panel 33 so that the drain water 14 flows out of the storage chamber 12 by passing through the plurality of through holes 34. For this reason, even if all the through holes 27a and the gaps 30 are closed, the drain water 14 does not stay in the storage chamber 12.
In the present embodiment, as shown in FIG. 2, the side wall panel 33 includes a plurality of through holes 34 below the arrangement position of the slit plate 23, and the through holes above the arrangement position of the slit plate 23. 34 is not provided.

In the casing 15, a space is provided between the side wall panel 33 and the side wall 35 of the casing 15, and the treated water flowing out of the storage chamber 12 through the through-hole 34 of the side wall panel 33 is neutralized by this space. A treated water guide portion 36 that leads to the outside of the water 10 is formed.
A drainage port 37 for discharging treated water to the outside of the neutralization device 10 is provided at the lower part of the casing 15, and the treated water is guided to the drainage port 37 by the treated water guide unit 36 and outside the neutralization device 10. Discharged.
In addition, there is a space below the water permeable member 27 in the casing 15, and treated water that has passed through the water permeable member 27 passes through the flow path 38 formed by this space to the drain outlet 37. It is guided and discharged to the outside of the neutralization device 10 through the drain port 37.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions and the like that do not depart from the gist are within the scope of the present invention.
For example, the acidic water neutralized by the neutralizer is not limited to drain water, and may be, for example, acidic rainwater. The water-permeable structure A is not limited to the slit, and may be, for example, a circular through hole.
Moreover, you may provide the drain outlet which discharges | emits the treated water which passed the side wall panel of the storage chamber outside the drain outlet which discharges the treated water which passed the water-permeable member outside the neutralization apparatus.
Furthermore, the water sealing chamber and the flow regulating member may be omitted. When there is no water seal chamber, the drain water flowing into the neutralization device directly enters the storage chamber.

And a baffle member is not limited to a bar, For example, as shown to FIG. 5 (A) and (B), you may employ | adopt the baffle plate 40 which bent the board | plate material and formed the trough part 40a. When the rectifying plate 40 is employed, as shown in FIGS. 5A and 5B, the drain water 43 that has flowed from the water sealing chamber 41 to the accommodation chamber 42 adjacent to the water sealing chamber 41 is a valley portion of the rectifying plate 40. The rectifying plate 40 is disposed in an inclined manner in the accommodation chamber 42 so as to be sent obliquely downward along 40a. The drain water 43 is neutralized in contact with the neutralizing agent 44 filled in the accommodation chamber 42 while proceeding obliquely downward along the valley 40a of the rectifying plate 40, and is a horizontally disposed slit having a water-permeable structure A. It passes through the water-permeable member 45, which is a plate, or a slit plate 46 (a side wall provided with the water-permeable structure B) disposed vertically, and is discharged as treated water from the drain port 48 through the treated water guide 47. The Here, instead of the rectifying plate 40, as shown in FIG. 5C, a rectifying plate 51 provided with a guide portion 50 that lengthens the traveling path of the drain water 43 in the valley portion 49 may be used. In FIG. 5A, reference numeral 52 is an introduction pipe that guides drain water 43 into the water sealing chamber 41, and reference numeral 53 indicates that the neutralizing agent 44 in the storage chamber 42 flows into the water sealing chamber 41. It is a slit plate which prevents the above.

10: Neutralizing device, 11: Neutralizing agent, 12: Storage chamber, 13: Inlet port, 14: Drain water, 15: Casing, 16: Inlet pipe, 17: Outlet port, 18: Water seal chamber, 19: Opening Part, 20: partition plate, 21: receiving member, 22, 23: slit plate, 23a: slit, 24, 24a, 24b: bar, 25: through hole, 26: gap, 27: water permeable member, 27a, 28 : Through hole, 29: reduced diameter part, 30: gap, 31: guide part, 33: side wall panel, 34: through hole, 35: side wall, 36: treated water guide part, 37: drain outlet, 38: flow path, 40: current plate, 40a: valley, 41: water sealing chamber, 42: storage chamber, 43: drain water, 44: neutralizer, 45: water permeable member, 46: slit plate, 47: treated water guide, 48: drainage port, 49: trough, 50: guide part, 51: current plate, 52: introduction pipe, 53: Lit plate

Claims (7)

A storage chamber containing a granular neutralizing agent is provided, and the treated water is treated outside through a water-permeable structure A provided at the bottom of the storage chamber by neutralizing acidic water flowing from the inlet with the neutralizing agent. In the neutralizer that discharges as
A water permeable structure B is provided on a side wall of the storage chamber to secure the flow path of the treated water, and a treated water guide portion that guides the treated water flowing out of the storage chamber through the water permeable structure B to the outside is provided. A neutralizer characterized by that. The neutralization apparatus according to claim 1, further comprising a rectifying member that guides the acidic water that has flowed into the storage chamber to the bottom of the storage chamber along a surface. 3. The neutralizing device according to claim 2, wherein unevenness is formed on a surface of the rectifying member. 3. The neutralization apparatus according to claim 2, wherein the rectifying member is a bar, and a spiral guide portion for guiding the acidic water is formed on a surface thereof. 5. The neutralization device according to claim 2, wherein a through-hole through which the rectifying member is inserted is formed at a bottom portion of the storage chamber, and a part or the whole of a peripheral portion of the through-hole is rectified. A neutralization apparatus characterized in that a gap is provided through which the treated water passes without contacting the member. The neutralization apparatus of any one of Claims 2-5 WHEREIN: The said treated water which passed the said water-permeable structure A and the said treated water which passed the said water-permeable structure B are set in the said treated water guide part. A neutralizing apparatus, wherein a drain outlet for discharging to the outside is provided. The neutralization apparatus of any one of Claims 1-6 WHEREIN: The water pipe which stores the introduction pipe | tube which has the water outlet which discharges the said injection port and the said acidic water, and stores the said acidic water sent to the said storage chamber A neutralization device, wherein the water outlet is immersed in the acidic water stored in the water-sealed chamber.

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