JP2017006817A - Neutralization device and heat source machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a neutralization device capable of securing dropping a neutralizer, and a heat source machine provided therewith.SOLUTION: A neutralization device 1 is used for neutralizing a drain. The neutralization device 1 contains : a neutralization tank 13; and a neutralizer 15. The neutralization device 1 has: mutually confronted either side face S1 and the other side face S2; a bottom face B connecting either side face S1 and the other side face S2; an inflow port 13a provided at either side face S1; and an outflow port 13b provided at the other side face S2. The neutralizer 15 is mounted on the bottom face B of the neutralization tank 13. The neutralization device 1 is composed in such a manner that the drain made to flow from the inflow port 13 into the neutralization tank 13 flows while being contacted with the neutralizer along the bottom face B from either side face S1 to the other side face S2 and is made to flow out from the outflow port 13a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a neutralization device and a heat source device, and more particularly to a neutralization device for neutralizing drain and a heat source device including the same.

  As an example of a heat source device, in order to improve thermal efficiency, a heat exchanger that has a heat exchanger that recovers sensible heat and latent heat of combustion exhaust gas (latent heat held by water vapor in the combustion exhaust gas) has been put into practical use. . When this heat exchanger capable of recovering latent heat is used, water vapor in the combustion exhaust gas is condensed and condensed due to the removal of latent heat. For this reason, a large amount of drain (condensation water) is generated in the heat exchanger. The combustion exhaust gas contains nitrogen oxides and the like. This nitrogen oxide dissolves in the drain, and the drain becomes acidic. A neutralizing agent is used to neutralize this acidic drain.

  For example, Japanese Patent Laying-Open No. 2015-39687 (Patent Document 1) describes a neutralizer that neutralizes acidic drain with a neutralizer. In the neutralization device described in this publication, the drain discharged from the outlet of the flow path member flows down along the surface of the neutralizing agent filled in the neutralization tank. Since the discharge port is disposed inside the neutralizing agent, the neutralizing agent located below the discharge port reacts with the drain and is consumed, so that a space is generated in the neutralizing agent. And the neutralizing agent located above a discharge port falls in this space.

JP2015-39687A

  In the neutralization apparatus described in the above publication, the neutralizing agent may stick due to moisture. In this case, in the portion of the fixed neutralizing agent that has reacted with the drain that has flowed down from the discharge port, a space is generated due to consumption of the neutralizing agent. However, since the neutralizing agent fixed in the outer portion of the space is supported by the bottom surface of the neutralizing tank, the neutralizing agent positioned above the discharge port may not fall.

  This invention is made | formed in view of said subject, The objective is to provide the neutralizer which can drop a neutralizer reliably, and a heat source machine provided with the same.

  The neutralization apparatus of the present invention is for neutralizing drain. The neutralization apparatus includes a neutralization tank and a neutralizer. The neutralization device has one side surface and the other side surface facing each other, a bottom surface connecting the one side surface and the other side surface, an inflow port provided on the one side surface, and an outflow port provided on the other side surface. The neutralizing agent is placed on the bottom surface of the neutralizing tank. The neutralizer is configured such that drain that has flowed into the neutralization tank from the inlet flows from the one side surface to the other side surface in contact with the neutralizing agent along the bottom surface and flows out from the outlet port.

  According to the neutralization apparatus of the present invention, the drain that has flowed into the neutralization tank flows from the one side surface to the other side surface while contacting the neutralizing agent along the bottom surface and flows out from the outflow port. The neutralizing agent can be reacted with drain. Therefore, the neutralizing agent can be exhausted by reacting with the drain in all regions of the bottom surface. Thereby, the neutralizing agent located above the exhausted neutralizing agent can be reliably dropped.

  In said neutralization apparatus, a neutralization tank contains the wall part which divides | segments the internal space of a neutralization tank into a some area | region by extending upwards from a bottom face. The neutralizing agent is placed on the bottom surface in each of the plurality of regions of the internal space. The wall includes an opening that communicates the plurality of regions with each other. Therefore, the area of the bottom surface of each of the plurality of regions can be reduced. For this reason, it is possible to make the neutralizing agent react with the drain in all the regions on the bottom surface and to be easily consumed. Thereby, the neutralizing agent located above the spent neutralizing agent can be further easily dropped.

  In the above neutralization apparatus, the bottom surface includes a first bottom surface portion, a second bottom surface portion, and a rising portion. The second bottom surface portion is disposed on the other side surface side with respect to the first bottom surface portion, and is disposed at a position lower than the first bottom surface portion. The rising portion rises from the second bottom surface portion and is connected to the first bottom surface portion. For this reason, it is possible to easily drain the drain from the first bottom surface portion to the second bottom surface portion. Thereby, it is possible to make the neutralizing agent placed on the second bottom surface portion arranged on the other side face react with the drain and to be easily consumed.

  The neutralizing device further includes a flow path member connected to the inflow port. The flow path member is configured to be able to supply a certain amount of drain to the inflow port. For this reason, the reaction amount of a drain and a neutralizing agent can be made constant. Thereby, the neutralization ability can be stabilized.

  In the above neutralizer, the neutral pH of the neutralizing agent is alkaline. For this reason, acidic drain can be neutralized with an alkaline neutralizing agent having an equilibrium pH.

  The heat source apparatus of the present invention includes the neutralization device described above. Therefore, it is possible to provide a heat source apparatus including a neutralizing device that can reliably drop the neutralizing agent.

  As described above, according to the present invention, it is possible to provide a neutralizing device capable of reliably dropping the neutralizing agent and a heat source apparatus including the neutralizing device.

It is a schematic diagram showing roughly the composition of the heat source machine in one embodiment of the present invention. It is the schematic which shows roughly the structure of the neutralization apparatus in one embodiment of this invention. FIG. 3 is a perspective view schematically showing a configuration of a P1 portion in FIG. 2. It is a perspective view corresponding to FIG. 3 in the modification of one embodiment of this invention. It is the schematic which shows a mode that drain is neutralized in the neutralization apparatus shown in FIG. It is the schematic which shows a mode that drain was consumed in the neutralization apparatus shown in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, the configuration of the heat source apparatus according to the embodiment of the present invention will be described.

  Referring to FIG. 1, the heat source apparatus of the present embodiment is a latent heat recovery type heat source apparatus, and is configured to recover and discharge drain D generated by the heat source apparatus. The heat source apparatus according to the present embodiment includes a neutralization device 1, a drain tank 2, a water level detection means 3, a drain discharge pump 4, a check valve 5, a control unit 6, and a hot water supply side heat exchanger 21. The bath side heat exchanger 22, the drain receiver 23, the hot water supply pipe 24 a, the water supply pipe 24 b, the forward pipe 25 a, the return pipe 25 b, the combustion burner 26, and the blower 27 are mainly included.

  The neutralizer 1 is for neutralizing the drain D generated by the heat source machine. The neutralizing device 1 is connected to the drain tank 2 and the drain receiver 23, and is configured so that it can be supplied into the drain tank 2 after neutralizing the acidic drain D received by the drain receiver 23. . The configuration of the neutralizer 1 will be described in detail later.

  The drain tank 2 is for storing the drain D generated by the latent heat recovery type heat source machine. The water level detection means 3 is for detecting the water level of the drain D in the drain tank 2. The water level detection means 3 can detect that the water level of the drain D in the drain tank 2 is at least one of a high level and a low level. The water level detection means 3 has an electrode part L for detecting a low water level (L: low level) in the drain tank 2 and an electrode part H for detecting a high water level (H: high level). .

  The drain discharge pump 4 is for discharging the drain D stored in the drain tank 2 to the outside of the apparatus. The drain discharge pump 4 is connected to the drain tank 2. A check valve 5 may be connected to the downstream side of the drain discharge pump 4. The check valve 5 is configured to allow the flow of the drain D from the upstream side to the downstream side of the check valve 5 and not allow the flow of the drain D from the downstream side to the upstream side. The drain D is discharged to a discharge unit such as a bathroom waterproof pan.

  The control unit 6 is electrically connected to each of the water level detection means 3 and the drain discharge pump 4. Based on the signal from the water level detection means 3 that the water level of the drain D is higher than the high level, the control unit 6 drives the drain discharge pump 4 until a signal that the water level of the drain D is low is input. It is configured to be controllable.

  Each of the hot water supply side heat exchanger 21 and the bath side heat exchanger 22 is a latent heat recovery type heat exchanger. In the latent heat recovery type heat exchanger, the water in the secondary heat exchanger is preheated by passing the gas after heat exchange, which has been conventionally discharged, through the secondary heat exchanger. In this process, the temperature of the combustion gas is lowered to about 60 ° C., so that moisture contained in the combustion gas is condensed and latent heat can be obtained. For this reason, the hot water supply side heat exchanger 21 has a primary heat exchanger 21a and a secondary heat exchanger 21b. The bath-side heat exchanger 22 includes a primary heat exchanger 22a and a secondary heat exchanger 22b.

  In the hot water supply side heat exchanger 21, one end of the primary heat exchanger 21a and one end of the secondary heat exchanger 21b are connected to each other. A hot water supply pipe 24a is connected to the other end of the primary heat exchanger 21a, and a water supply pipe 24b is connected to the other end of the secondary heat exchanger 21b. The primary heat exchanger 21a is disposed closer to the combustion burner 26 than the secondary heat exchanger 21b.

  Also in the bath-side heat exchanger 22, one end of the primary heat exchanger 22a and one end of the secondary heat exchanger 22b are connected to each other. A forward pipe 25a is connected to the other end of the primary heat exchanger 22a, and a return pipe 25b is connected to the other end of the secondary heat exchanger 22b. The primary heat exchanger 22a is disposed closer to the combustion burner 26 than the secondary heat exchanger 22b.

  The combustion burner 26 is for generating combustion gas for exchanging heat between the hot water supply side heat exchanger 21 and the bath side heat exchanger 22. The blower 27 is for supplying air necessary for combustion to the combustion burner 26.

  In the latent heat recovery type heat exchanger, drainage of the drain D is necessary because condensed water (drain) is generated due to the structure for condensing the water vapor of the combustion gas as described above. For this reason, the drain receiver 23 is arrange | positioned under each of the secondary heat exchangers 21b and 22b. The drain D received by the drain receiver 23 is acidic because nitrogen oxides in the exhaust gas are dissolved therein. The acidic drain D is supplied from the drain receiver 23 to the neutralizer 1.

Next, the structure of the neutralization apparatus of this Embodiment is demonstrated in detail.
With reference to FIGS. 1 and 2, the neutralization device 1 includes a drain storage tank 11, a flow path member 12, a neutralization tank 13, a discharge tank 14, and a neutralizing agent 15. The drain storage tank 11 is for temporarily storing the acidic drain D supplied from the drain receiver 23. The drain storage tank 11 is configured to be able to store the drain D in the internal space.

  The flow path member 12 is for discharging the drain D from the drain storage tank 11 to the neutralization tank 13. The flow path member 12 has an intake port 12a and a discharge port 12b. The intake port 12 a is disposed so as to open inside the drain storage tank 11, and the discharge port 12 b is disposed so as to communicate with the inflow port 13 a provided on one side surface S <b> 1 of the neutralization tank 13. That is, the drain storage tank 11 and the neutralization tank 13 communicate with each other by the flow path member 12.

  In the present embodiment, the flow path member 12 is configured to be able to supply the drain D to the inflow port 13a of the neutralization tank 13 by a certain amount. Specifically, the flow path member 12 extends upward from the intake port 12a and then extends downward to reach the discharge port 12b to form a siphon. For this reason, the flow path member 12 can take in the drain D stored in the drain storage tank 11 from the intake port 12 a and discharge a certain amount of drain D from the discharge port 12 b to the neutralization tank 13. That is, the drain D from the height position of the upper end portion of the flow path member 12 to the height position of the intake port 12a can be discharged by one discharge by the siphon. For this reason, the flow path member 12 can make the flow rate of the drain D discharged from the discharge port 12b constant. Further, the flow path member 12 can make the flow rate of the drain D discharged from the discharge port 12b constant.

  The channel member 12 may be a pipe, for example, or may have a channel formed by molding. For example, the tube may be cylindrical or rectangular. Moreover, what has the flow path by this shaping | molding may be what press-molded the board | plate material, for example, and the recessed part formed by resin molding may comprise a flow path.

  The neutralization tank 13 is for neutralizing the acidic drain D with the neutralizing agent 15. The neutralization tank 13 can accommodate the neutralizing agent 15 in the internal space. The neutralization tank 13 is configured to neutralize the acidic drain D by reacting the acidic drain D with the neutralizing agent 15 in the internal space.

  The neutralization tank 13 mainly has one side surface S1, the other side surface S2, a bottom surface B, an inflow port 13a, an outflow port 13b, and a wall portion W. On the other hand, the side surface S <b> 1 is disposed at one end of the neutralization tank 13 in the left-right width direction. The other side surface S <b> 2 is disposed at the other end of the neutralization tank 13 in the left-right width direction. One side surface S1 and the other side surface S2 are arranged to face each other.

  The inflow port 13a is provided on one side surface S1. The flow path member 12 is connected to the inflow port 13a. Specifically, the discharge port 12b of the flow path member 12 communicates with the inflow port 13a. The outflow port 13b is provided on the other side surface S2. A discharge tank 14 is connected to the outlet 13b.

  The bottom surface B is configured to connect the one side surface S1 and the other side surface S2. The bottom surface B is configured so that the neutralizing agent 15 can be placed thereon. The bottom surface B is disposed below the height position of the inflow port 13a. In the neutralizing device 1, the drain D that has flowed into the neutralization tank 13 from the inlet 13a flows from one side S1 to the other side S2 along the bottom B while contacting the neutralizer 15 and flows out from the outlet 13b. It is configured.

  In the present embodiment, the bottom surface B includes a first bottom surface portion B1, a second bottom surface portion, and a rising portion T. The first bottom surface portion B1 is connected to the one side surface S1. The second bottom surface portion B2 is disposed on the other side surface S2 side than the first bottom surface portion B1. The second bottom surface portion B2 is disposed at a position lower than the first bottom surface portion B1. The rising portion T rises from the second bottom surface portion B2 and is connected to the first bottom surface portion B1. The first bottom surface portion B1 is disposed at a height position higher than the second bottom surface portion B2.

  In the present embodiment, the bottom surface B further includes a third bottom surface portion B3 and a fourth bottom surface portion B4. The third bottom surface portion B3 is disposed on the other side surface S2 side than the second bottom surface portion B2. The third bottom surface portion B3 is disposed at a position lower than the second bottom surface portion B2. The third bottom surface portion B3 is connected to the second bottom surface portion B2 by the rising portion T.

  The fourth bottom surface portion B4 is connected to the other side surface S2. The fourth bottom surface portion B4 is connected to the third bottom surface portion B3 by the rising portion T. The fourth bottom surface portion B4 is disposed at a position lower than the third bottom surface portion B3. The first to fourth bottom surface portions B1 to B4 are each configured in a stepped manner so as to be arranged at a lower position from the one side surface S1 toward the other side surface S2.

  In this Embodiment, the wall part W is comprised so that the internal space of the neutralization tank 13 may be divided | segmented into a some area | region by extending upward from the bottom face B. FIG. The neutralizing agent 15 is placed on the bottom surface B in each of a plurality of regions of the internal space of the neutralizing tank 13. Wall portion W includes an opening OP that allows a plurality of regions to communicate with each other. The opening OP is provided at the lower end of the wall W. The opening OP is constituted by a plurality of through holes having a size that allows the drain D to pass therethrough and does not allow the neutralizing agent 15 to pass therethrough. In the present embodiment, the wall portion W includes first to third wall members W1 to W3. The opening OP has first to third openings OP1 to OP3. The first to third openings OP1 to OP3 are provided in each of the first to third wall members W1 to W3.

  The first wall member W1 is disposed at the boundary between the first bottom surface portion B1 and the second bottom surface portion B2. The first wall member W1 extends upward continuously from the rising portion T that connects the first bottom surface portion B1 and the second bottom surface portion B2. A first region R1 above the first bottom surface portion B1 and a second region R2 above the second bottom surface portion B2 are partitioned by the first wall member W1. The first opening OP1 is provided at the lower end of the first wall member W1. The first opening OP1 communicates the first region R1 and the second region R2 with each other. The first opening OP1 has a plurality of through holes.

  The second wall member W2 is disposed at the boundary between the second bottom surface portion B2 and the third bottom surface portion B3. The second wall member W2 extends upward continuously from the rising portion T that connects the second bottom surface portion B2 and the third bottom surface portion B3. The second wall member W2 partitions the second region R2 above the second bottom surface portion B2 and the third region R3 above the third bottom surface portion B3. The second opening OP2 is provided at the lower end of the second wall member W2. The second opening OP2 communicates the second region R2 and the third region R3 with each other. The second opening OP2 has a plurality of through holes.

  The third wall member W3 is disposed at the boundary between the third bottom surface portion B3 and the fourth bottom surface portion B4. The third wall member W3 extends upward continuously from the rising portion T that connects the third bottom surface portion B3 and the fourth bottom surface portion B4. The third region R3 above the third bottom surface portion B3 and the fourth region R4 above the fourth bottom surface portion B4 are partitioned by the third wall member W3. The third opening OP3 is provided at the lower end of the third wall member W3. The third opening OP3 communicates the third region R3 and the fourth region R4 with each other. The third opening OP3 has a plurality of through holes.

  Referring to FIG. 3, the first wall member W1 and the second wall member W2 may be arranged in parallel to each other. Moreover, although not shown in figure, the 2nd wall member W2 and the 3rd wall member W3 may also be arrange | positioned in parallel mutually.

  Referring to FIG. 4, first wall member W1 and second wall member W2 do not have to be arranged in parallel to each other. In the modification of the present embodiment, the first wall member W1 and the second wall member W2 are configured such that the mutual distance increases from the upper side to the lower side. For this reason, the neutralizing agent 15 can be easily dropped downward. Although not shown, the second wall member W2 and the third wall member W3 may also be configured such that the distance from each other increases from the upper side to the lower side.

  The discharge tank 14 is configured to accommodate the drain D that has flowed into the internal space. The discharge tank 14 is configured to be able to supply the drain D that has flowed into the drain tank 2. The discharge tank 14 has an inlet 14a and an outlet 14b. The inlet 14 a communicates with the outlet 13 b of the neutralization tank 13. The outlet 14 b communicates with the drain tank 2.

  The neutralizing agent 15 is filled in the neutralizing tank 13. The equilibrium pH of the neutralizing agent 15 is alkaline. That is, the value of the neutral pH (hydrogen ion index) of the neutralizing agent 15 is greater than 7. As the neutralizing agent 15, magnesium oxide can be used. Further, as the neutralizing agent 15, calcium hydroxide, magnesium carbonate, or the like can be used. The neutralizing agent 15 may be composed of a plurality of granular materials. In this case, the particle size of the plurality of materials is, for example, 1 mm or more and 3 mm or less. Note that the neutralizing agent 15 may be made of a fibrous or massive material.

  The neutralizing agent 15 has a drain flow path portion 151 and a stock portion 152. The drain channel 151 is a part for contacting and reacting with the drain D. The neutralization tank 13 is configured such that the drain D flows through the drain channel portion 151. The drain flow path part 151 is arrange | positioned below the upper end of the discharge port 12b.

  The stock part 152 is a part for storing the neutralizing agent 15. The neutralization tank 13 is configured so that the drain D does not flow into the stock portion 152. The stock portion 152 is disposed above the drain flow channel portion 151 and is disposed above the discharge port 12 b of the flow channel member 12. Therefore, since the stock part 152 does not contact the drain D, it does not react with the drain D.

Next, the drain discharge operation of the present embodiment will be described.
Referring to FIGS. 1 and 5, when the heat source machine is operated, drainage D is generated in hot water supply side heat exchanger 21 and bath side heat exchanger 22. The drain D is received by the drain receiver 23 and is supplied from the drain receiver 23 to the neutralizer 1.

  In the neutralization device 1, first, the acidic drain D supplied from the drain receiver 23 is stored in the drain storage tank 11. When the water level of the acidic drain D stored in the drain storage tank 11 rises, the acidic drain D is taken into the flow path member 12 from the intake port 12a. When the water level of the drain D stored in the drain storage tank 11 reaches the upper end of the flow path member 12, the drain D taken into the flow path member 12 from the intake port 12a exceeds the upper end of the flow path member 12. Then, it flows into the discharge port 12b and is discharged from the discharge port 12b.

  At this time, since the flow path member 12 forms a siphon, the drain D is discharged from the discharge port 12b until the water level of the drain D stored in the drain storage tank 11 reaches the height position of the intake port 12a. For this reason, the drain D stored in the drain storage tank 11 is continuously discharged until the water level of the drain D reaches the height position of the intake port 12 a from the height position of the upper end portion of the flow path member 12. In this way, a certain amount of drain D is discharged from the discharge port 12b by siphon action.

  The drain D discharged from the discharge port 12b of the flow path member 12 flows into the neutralization tank 13 from the inlet 13a provided on the one side surface S1 of the neutralization tank 13. The drain D that has flowed into the neutralization tank 13 from the inflow port 13a flows from the one side surface S1 to the other side surface S2 along the bottom surface B while in contact with the neutralizing agent 15, and flows out from the outflow port 13b. At this time, the drain D is neutralized by reacting with the drain D in contact with the neutralizing agent 15.

  Specifically, the drain D that has flowed into the first region R1 from the inlet 13a of the neutralization tank 13 flows while contacting the neutralizing agent 15 along the first bottom surface portion B1 on the other side surface S2. At this time, the drain D reacts in contact with the neutralizing agent 15 disposed in the vicinity of the first bottom surface portion B1 in the neutralizing agent 15 filled in the first region R1. Thereafter, the drain D flows into the second region R2 through the first opening OP1. The drain D that has flowed into the second region R2 flows while coming into contact with the neutralizing agent 15 along the second bottom surface B2 toward the other side surface S2. At this time, the drain D reacts in contact with the neutralizing agent 15 disposed in the vicinity of the second bottom surface portion B2 of the neutralizing agent 15 filled in the second region R2. Thereafter, the drain D flows into the third region R3 through the second opening OP2.

  The drain D that has flowed into the third region R3 flows while contacting the neutralizing agent 15 along the third bottom surface B3 toward the other side surface S2. At this time, the drain D reacts in contact with the neutralizing agent 15 disposed in the vicinity of the third bottom surface portion B3 in the neutralizing agent 15 filled in the third region R3. Thereafter, the drain D flows into the fourth region R4 through the third opening OP3.

  The drain D flowing into the fourth region R4 flows while coming into contact with the neutralizing agent 15 along the fourth bottom surface portion B4 on the other side surface S2 side. At this time, the drain D reacts in contact with the neutralizing agent 15 disposed in the vicinity of the fourth bottom surface portion B4 out of the neutralizing agent 15 filled in the fourth region R4. Thereafter, the drain D is discharged from the outflow port 13 b provided on the other side surface S <b> 2 of the neutralization tank 13.

  The drain D discharged from the outlet 13 b of the neutralization tank 13 flows into the discharge tank 14 from the inlet 14 a of the discharge tank 14. The drain D flowing into the discharge tank 14 is discharged from the outlet 14b. Thereby, the drain D is discharged from the neutralization device 1. The drain D discharged from the outlet 14b is supplied to the drain tank 2.

  In the drain tank 2, it is determined whether or not the water level in the drain tank 2 detected by the water level detection means 3 is higher than the high water level (H). If the water level is higher than the high water level (H), drain discharge The pump 4 is turned on and the drain D in the drain tank 2 is discharged. After the drain D is discharged, when the water level becomes lower than the low water level (L), the drain discharge pump 4 is turned off and the drain D in the drain tank 2 is stopped. In this way, the water level in the drain tank 2 of the latent heat recovery type heat source machine is controlled.

  5 and 6, when the acidic drain D stored in the drain storage tank 11 passes through the flow path member 12 and is discharged from the discharge port 12b, the drain flow path portion 151 becomes acidic. It is consumed by reacting with drain D. As a result, a space is generated in the drain flow channel portion 151 and the volume of the drain flow channel portion 151 is reduced. However, the stock portion 152 located above the drain flow channel portion 151 falls to fill the space. That is, the stock portion 152 located above the drain flow passage portion 151 moves downward due to its own weight, and the space is compensated. In this way, the neutralizing agent 15 in the part that reacts in contact with the acidic drain D is automatically replenished. Thereby, since the quantity of the drain flow-path part 151 can be kept constant, the reaction amount of the drain D and the drain flow-path part 151 can be kept constant.

Next, the effect of this Embodiment is demonstrated.
As shown in FIG. 5, according to the neutralization apparatus 1 of the present embodiment, the drain D that has flowed into the neutralization tank 13 from the inlet 13 a is neutralized along the bottom surface B from one side surface S1 to the other side surface S2. 15, while flowing in contact with the flow outlet 15 b and flowing out from the outlet 13 b, the neutralizing agent 15 can be reacted with the drain D along the bottom surface B. Therefore, the neutralizing agent 15 can be consumed by reacting with the drain D in the entire region of the bottom surface B. Thereby, the neutralizing agent 15 located above the exhausted neutralizing agent 15 can be reliably dropped.

  In the neutralization apparatus 1 of the present embodiment, the neutralization tank 13 includes a wall portion W that extends upward from the bottom surface B to divide the internal space of the neutralization tank 13 into a plurality of regions. The neutralizing agent 15 is placed on the bottom surface B in each of the plurality of regions of the internal space. Wall portion W includes an opening OP that allows a plurality of regions to communicate with each other. Therefore, the area of the bottom surface B of each of the plurality of regions can be reduced. For this reason, it is possible to make the neutralizing agent 15 react with the drain D in all regions of the bottom surface B and to be easily consumed. Thereby, the neutralizing agent 15 located above the exhausted neutralizing agent 15 can be further easily dropped. By making it easier to drop the neutralizing agent 15, it is possible to stabilize the neutralizing ability, and it is possible to prevent the neutralizing ability from being lowered although the neutralizing agent 15 remains sufficiently. In other words, although the neutralizing agent 15 remains sufficiently, the neutralizing agent 15 does not fall due to sticking or the like, so that the neutralization reaction between the neutralizing agent 15 and the drain D can be sufficiently ensured. Therefore, it is possible to prevent the neutralization ability from being lowered.

  In the neutralization apparatus 1 of the present embodiment, the bottom surface B includes a first bottom surface portion B1, a second bottom surface portion B2, and a rising portion T. The second bottom surface portion B2 is disposed on the other side surface S2 side with respect to the first bottom surface portion B1, and is disposed at a position lower than the first bottom surface portion. The rising T portion rises from the second bottom surface portion B2 and is connected to the first bottom surface portion B1. For this reason, it is possible to facilitate the drain D to flow from the first bottom surface portion B1 to the second bottom surface portion B2. Thereby, it is possible to make the neutralizing agent 15 placed on the second bottom surface portion B2 disposed on the other side surface S2 side react with the drain D to be easily consumed.

  In the neutralization apparatus 1 of this Embodiment, the flow path member 12 connected to the inflow port 13a is further provided. The flow path member 12 is configured to be able to supply the drain D to the inflow port 13a by a certain amount. For this reason, the reaction amount of the drain D and the neutralizing agent 15 can be made constant. Thereby, the neutralization ability can be stabilized.

  In the neutralizing device 1 of the present embodiment, the equilibrium pH of the neutralizing agent 15 is alkaline. For this reason, the acidic drain D can be neutralized with the neutralizing agent 15 whose alkaline pH is alkaline.

  The heat source machine of the present embodiment includes the neutralizing device 1 described above. Therefore, it is possible to provide a heat source device including the neutralizing device 1 that can reliably drop the neutralizing agent 15.

  The neutralization tank 13 flows from the inlet 13a by alternately shifting the opening OP, the inlet 13a, and the outlet 13b communicating with each area (room) of the neutralization tank 13 in the depth direction of the neutralization tank 13. It may be configured to meander the flow of the drain D reaching the outlet 13b. Thereby, the contact time of the drain D with the neutralizing agent 15 can be lengthened.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Neutralizer, 2 Drain tank, 3 Water level detection means, 4 Drain discharge pump, 5 Check valve, 6 Control part, 11 Drain storage tank, 12 Flow path member, 12a Intake port, 12b Discharge port, 13 Neutralization Tank, 13a Inlet, 13b Outlet, 14 Discharge tank, 14a Inlet, 14b Outlet, 15 Neutralizing agent, 21 Hot water supply side heat exchanger, 22 Bath side heat exchanger, 24a Hot water supply pipe, 24b Water supply pipe, 25a Outward pipe , 25b Piping, 26 Combustion burner, 27 Blower, 151 Drain flow path, 152 Stock, B Bottom, B1-B4 First to fourth bottom, OP Opening, OP1-OP3 First to third opening , R1 to R4 First to fourth regions, S1 one side surface, S2 other side surface, T rising portion, W wall portion, W1 to W4 first to fourth wall members.

Claims (6)

A neutralization device for neutralizing drain,
A neutralization tank having one side surface and the other side surface facing each other, a bottom surface connecting the one side surface and the other side surface, an inflow port provided in the one side surface, and an outflow port provided in the other side surface;
A neutralizing agent placed on the bottom surface of the neutralization tank,
The drain that has flowed into the neutralization tank from the inflow port is configured to flow from the one side surface to the other side surface in contact with the neutralizing agent along the bottom surface and to flow out from the outflow port. Neutralizer. The neutralization tank includes a wall portion that divides the internal space of the neutralization tank into a plurality of regions by extending upward from the bottom surface,
The neutralizing agent is placed on the bottom surface in each of the plurality of regions of the internal space,
The neutralizing device according to claim 1, wherein the wall includes an opening that communicates the plurality of regions with each other. The bottom surface is
A first bottom surface;
A second bottom surface portion disposed on the other side surface side of the first bottom surface portion and disposed at a position lower than the first bottom surface portion;
The neutralization device according to claim 1, further comprising a rising portion rising from the second bottom surface portion and connected to the first bottom surface portion. A flow path member connected to the inflow port;
The neutralization device according to any one of claims 1 to 3, wherein the flow path member is configured to be able to supply the drain to the inflow port by a certain amount.   The neutralization apparatus of any one of Claims 1-4 whose equilibrium pH of the said neutralizing agent is alkaline.   The heat source machine provided with the neutralization apparatus of any one of Claims 1-5.