JP5382398B2 - Neutralizing device and hot water supply device - Google Patents

Description

  The present invention relates to a neutralizing device for neutralizing drain and the like generated in a hot water supply device, and a hot water supply device including the neutralizing device.

  Conventionally, there has been provided a hot water heating apparatus employing a so-called latent heat recovery type combustor as disclosed in Patent Document 1 below. In this kind of hot water heater, a heat exchanger is provided in the middle of the combustion gas passage through which the combustion gas passes, and not only sensible heat contained in the combustion gas but also latent heat is recovered in the heat exchanger. It can be configured. Therefore, in the latent heat recovery type hot / cold water heating device, drain is generated in the combustion gas passage along with the combustion operation.

Since the drain generated in the latent heat recovery type hot water heater is exposed to the combustion gas, it has high acidity and corrosivity. For this reason, most of the latent heat recovery type hot and cold water heating devices of the prior art are provided with a neutralization device for neutralizing the drain to prevent the drain from being discharged as it is.
JP-A-6-190378

  In the neutralization apparatus having the above-described configuration, the drain flows through the portion filled with the neutralizing agent in the storage container, so that the drain reacts with the neutralizing agent to be neutralized. Therefore, in view of sufficiently neutralizing the drain, it has been desired to have a configuration in which a path through which the drain flows in the storage container can be taken as long as possible. On the other hand, in recent years, since devices using a neutralizing device such as a hot water supply device tend to be compact, it has been desired to make the storage container as compact as possible.

  Here, the neutralization apparatus as described above has a storage container in which a neutralizing agent is accommodated, but the flow of the drain may be hindered due to foreign matter clogging the drain inlet, and the drain may overflow. There was sex.

  In order to solve such a problem, the present inventors have a neutralizing agent storage portion in which a neutralizing agent is stored, and a storage portion adjacent to the upstream side in the flow direction of the drain, A storage container having an inflow port for allowing the drain to pass between the agent storage unit and the storage unit and a communication port for ventilation was made as a trial, and a neutralizer using the storage container was tested. As a result, in this neutralization device, even if the drain passage inlet is blocked by foreign matter or the like, it is between the neutralizer container and the reservoir through the communication port provided for ventilation. It has been found that drain can be passed and drain overflow can be prevented. However, in the above-described neutralizing device, when drain flows into the neutralizing agent storage portion from the communication port provided for ventilation, there is a possibility that the drain is discharged without being sufficiently neutralized.

  Therefore, in order to solve such a problem, the present invention can take a long path for the drain to flow in the neutralizing agent storage portion in which the neutralizing agent is stored, and the inlet to the neutralizing agent storage portion is blocked. Another object of the present invention is to provide a neutralizer capable of draining after drainage is sufficiently neutralized, and a hot water supply device equipped with the neutralizer.

The invention according to claim 1, which is provided to solve the above-described problem, includes a combustion means for burning fuel, a combustion gas passage through which combustion gas generated by a combustion operation in the combustion means flows, and the combustion A neutralizing device for discharging drain generated in a hot water heating apparatus provided with heat exchange means capable of heating hot water or a heat medium by heat exchange with combustion gas flowing in a gas passage, and communicates with the combustion gas passage And a storage container capable of storing drain, a neutralizing agent storage section capable of storing a neutralizing agent for drain neutralization is provided in the storage container, and the drain with respect to the neutralizing agent storage section Wall surface A provided with an inflow port, wall surface B opposed to the wall surface, provided with a discharge port for discharging drain from the neutralizer container, and the wall surfaces A and B, the storage container Intersects the top and bottom When assuming a virtual line that has wall surfaces C and D facing each other and a partition provided in the neutralizing agent container and connects the inflow port and the discharge port, the partition defines the virtual line. The partition is continuous with the bottom surface and the wall surface C without a gap, and there is a space between the partition and the top surface and between the partition and the wall surface D, and neutralization from the inflow port. The drain that has flowed into the agent container can be bypassed beyond the top of the partition and passed toward the discharge port, and the drain that has flowed into the neutralizer container from the inflow port, It is possible to bypass the side part of the partition and pass it toward the discharge port, and to the wall surface A, the neutralizing agent storage part, and the drain flow direction upstream with respect to the neutralizing agent storage part A communication port communicating with the space located on the side is provided, The inlet and the outlet are located on the bottom surface side of the storage container and unevenly located on the wall surface C side, and the communication port is located on the top surface side of the storage container and unevenly located on the wall surface D side; When a virtual line connecting the communication port and the discharge port is assumed, the virtual line obliquely crosses the internal space of the neutralizing agent storage unit.

  In the neutralization apparatus of the present invention, a partition is provided so as to cross a virtual line connecting the drain inlet to the neutralizer container and the outlet for discharging drain from the neutralizer container, The drain that flows in from the inflow port bypasses the partition and flows toward the discharge port. Therefore, in the neutralization apparatus of the present invention, the path through which the drain flows in the neutralizing agent storage section is long, and the drain can be sufficiently neutralized and discharged.

  Further, in the neutralization device of the present invention, a communication port is provided at a position unevenly distributed on the top surface side of the storage container on the wall surface A provided with the drain inlet to the neutralizing agent container, separately from the inlet. It has been. Therefore, in the neutralization device of the present invention, even if the inflow port provided in the wall surface A is blocked by foreign matter or the like and the flow of drain through the inflow port is obstructed, the communication provided in the wall surface A It is possible to circulate the drain toward the neutralizing agent container through the mouth. Therefore, in the neutralization apparatus of the present invention, the drain does not overflow even if the inlet to the neutralizing agent container is blocked.

  In the neutralization device of the present invention, an inlet is provided at a position on the bottom surface side of the storage container on the wall surface A and unevenly distributed on the wall surface C side, and on the top surface side of the storage container, A communication port is provided at a position unevenly distributed on the opposing wall surface D side. That is, on the wall surface A, the inflow port and the communication port are provided so as to have an oblique positional relationship. On the other hand, the discharge port for discharging the drain from the neutralizing agent storage portion is a wall surface B facing the wall surface A, and is provided at a position unevenly distributed on the wall surface C side. Therefore, in the neutralization device of the present invention, when a virtual line connecting the communication port and the discharge port is assumed, the virtual line obliquely crosses the internal space of the neutralizing agent storage unit, and the discharge port is connected to the discharge port. The drain route leading to is long. Therefore, even if drain flows into the neutralizing agent storage part from the communication port because the inlet is closed, the drain is sufficiently neutralized by the neutralizing agent filled in the neutralizing agent storage part. After that, it will be discharged.

  In the invention according to claim 2, the top surface of the storage container is provided with a filling port capable of filling the neutralizing agent storage portion with the neutralizing agent, and the filling port is unevenly located on the wall surface D side. It is provided, It is a neutralization apparatus of Claim 1 characterized by the above-mentioned.

  In the neutralizing apparatus of the present invention, the filling port for filling the neutralizing agent is provided at a position unevenly distributed on the wall surface D side, similarly to the communication port provided on the wall surface A. For this reason, the neutralizing device of the present invention communicates when the neutralizing agent is filled from the filling port in a state where the storage container is tilted so that the wall surface C side faces downward with respect to the wall surface D side. It is possible to prevent spilling out of the neutralizing agent container through the mouth.

  According to a third aspect of the present invention, the storage container has a storage part that is communicated via a communication port provided in the wall surface A, and the fuel detection means that can detect the presence of liquid fuel is provided in the storage part. The neutralizing device according to claim 2, wherein the neutralizing device is provided.

  In the neutralization apparatus of the present invention, the fuel detection means is provided in the storage portion that is communicated via the communication port. For this reason, when the neutralizing agent is accidentally filled into the storage unit side through the communication port when the neutralizing agent is filled in the neutralizing agent storage unit, There is a possibility that the neutralizing agent rolls and an impact is applied to the fuel detection means, which may cause a failure of the fuel detection means.

  However, in the neutralization device of the present invention, since the filling port and the communication port are both in a position unevenly distributed on the wall surface D side, the neutralizing agent is connected to the communication port by filling the neutralizing agent with the wall surface C side facing downward. It can prevent entering into the storage part side via. Therefore, according to the present invention, it is possible to minimize the possibility of failure of the fuel detection means due to the collision of the neutralizing agent.

  Here, the neutralization device according to any one of claims 1 to 3 may be characterized in that the storage container is molded by a blow molding method (claim 4).

  According to the present invention, the storage container constituting the neutralizing device can be easily manufactured.

  According to a fifth aspect of the present invention, there is provided heat exchange between a combustion means for combusting fuel, a combustion gas passage through which combustion gas generated by a combustion operation in the combustion means flows, and a combustion gas flowing through the combustion gas passage. A hot water supply apparatus comprising a heat exchanging means capable of heating hot water or a heat medium and the neutralization device according to any one of claims 1 to 4.

  According to such a configuration, it is possible to provide a hot water supply apparatus that does not overflow the drain even if the inlet to the neutralizing agent container is blocked, and that can be discharged after sufficiently neutralizing the drain.

  According to the present invention, even if foreign matter is clogged in the drain inlet provided in the storage container, the flow of drain or the like is obstructed or the drain etc. overflows while maintaining neutralization performance. The neutralization apparatus which can be prevented, and the hot water supply apparatus provided with the said neutralization apparatus can be provided.

  Next, the hot water supply device 1 and the neutralization device 7 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the vertical / left / right positional relationship will be described based on a normal installation state unless otherwise specified.

  The hot water supply apparatus 1 is a so-called latent heat recovery type hot water heating apparatus including a combustion section 2 (combustion means), a primary heat exchanger 20 and a secondary heat exchanger 25. The hot water supply device 1 includes a combustion case 3 and an exhaust collecting unit 5 below the combustion unit 2. As a result, the hot water supply device 1 is formed with a space communicating from the combustion case 3 through the exhaust collecting portion 5 to the muffler portion 6 to be described later so that the cross-sectional shape is substantially “U” shape. A silencer 6 is provided on the side of the combustion unit 2, and a neutralizer 7 is provided below the combustion case 3. The combustion case 3 and the silencer 6 communicate with an exhaust collecting part 5 provided on the bottom side of the hot water supply device 1.

  As shown in FIG. 1, the combustion unit 2 includes an air case 8, a fuel spray nozzle 10, a blower 11, a combustion cylinder 12, and the like. The combustion part 2 is comprised by what is called a reverse combustion type combustion apparatus, and can form a flame toward the downward direction. That is, the combustion unit 2 operates the blower 11 to introduce combustion air into the air case 8 and directs the liquid fuel supplied from a fuel supply source (not shown) downward from the fuel spray nozzle 10. It is set as the structure which can be sprayed and combusted in the combustion cylinder 12. FIG.

  The combustion case 3 is located on the lower side with respect to the combustion part 2 and is a part through which high-temperature combustion gas generated in accordance with the combustion operation in the combustion part 2 flows, and is combined with the exhaust collecting part 5 and the muffler part 6. Thus, a series of combustion gas passages 4 is formed. A primary heat exchanger 20 and a secondary heat exchanger 25 are provided inside the combustion case 3. The primary heat exchanger 20 is located on the upstream side in the flow direction of the combustion gas flowing through the combustion unit 2, that is, on the upper side in the illustrated state. On the other hand, the secondary heat exchanger 25 is located on the downstream side in the flow direction of the combustion gas flowing through the combustion unit 2, that is, on the lower side in the illustrated state.

  A water inlet (not shown) of the primary heat exchanger 20 and a water outlet (not shown) of the secondary heat exchanger 25 are connected by a pipe (not shown). Further, a pipe connected to a place (hot water supply destination) serving as a hot water supply destination such as a currant or a bathtub is connected to the water outlet 20 a of the primary heat exchanger 20. Further, a water inlet pipe 26 for supplying hot water to be heated from the outside is connected to the water inlet 25a of the secondary heat exchanger 25. Therefore, when there is a hot water supply request at the hot water supply destination and hot water is supplied from an external water supply source via the water inlet pipe 26, this hot water is supplied to the water inlet 25 a of the secondary heat exchanger 25. The hot water supplied to the water inlet 25a flows through the secondary heat exchanger 25, and then is sequentially heat exchange heated by flowing through the primary heat exchanger 20, and then the hot water supply destination from the water outlet 20a of the primary heat exchanger 20 Supplied towards

  The exhaust collecting portion 5 is a portion that is disposed below the combustion case 3 and communicates directly with the combustion case 3. Exhaust collecting portion 5 has an internal space that extends in the width direction (right and left direction in FIG. 1) of hot water supply device 1 on the bottom side of hot water supply device 1. Further, the exhaust collecting part 5 communicates with a muffler part 6 arranged on the side of the combustion case 3. Therefore, the exhaust collecting portion 5 functions as a portion that causes the combustion gas flowing downward in the combustion case 3 to flow in and flows out the combustion gas toward the silencer 6. In other words, the exhaust collecting portion 5 functions as a portion for turning upward the flow direction of the combustion gas flowing downward.

  A drain discharge port 27 is provided at the bottom of the exhaust collecting portion 5. The drain discharge port 27 functions as a discharge port for discharging the drain falling from the secondary heat exchanger 25 side to the outside of the exhaust collecting portion 5.

  A neutralizing device 7 is disposed below the exhaust collecting portion 5, accepts drain discharged from the drain discharge port 27, neutralizes it, and discharges it. That is, the neutralization device 7 has a function as a drain discharge system for discharging drain generated in the hot water supply device 1 and a function as a neutralizer for neutralizing the drain.

  As shown in FIG. 2, FIG. 3, etc., the storage container 30 is roughly divided into three parts. Specifically, the storage container 30 has an upstream portion 31, a midstream portion 32, and a downstream portion 33 (neutralization) from the upstream side in the drain flow direction, that is, from the side closer to the drain discharge port 27 side in the assembled state of the hot water supply device 1. It is classified into three parts (agent storage part). The entire storage container 30 is integrally molded by a blow molding method.

  The upstream portion 31 is a portion into which the drain discharged through the drain discharge port 27 first flows, and is a portion in which the neutralizing agent C is filled. As shown in FIG. 4 and the like, the upstream portion 31 is divided into an upstream first tank 36 and an upstream second tank 37 by a first partition 35. As shown in FIGS. 4 and 5, the first partition 35 includes a hanging portion 35 a that extends downward from the top surface 30 a side of the storage container 30, and a standing portion that extends upward from the bottom surface 30 b side. It is formed by the combination with 35b. The first partition 35 is in a state in which the drooping portion 35a and the standing portion 35b are in contact with each other without a gap, and constitutes a wall surface through which drain or the like cannot pass.

  On the other hand, as shown in FIG. 5, the first partition 35 is a slit-shaped first and second between the hanging portion 35 a and the standing portion 35 b at a position unevenly distributed on the back surface 30 c (wall surface C) side of the storage container 30. A neutralization tank communication hole 35c is provided. Moreover, the 1st, 2 neutralization tank communication hole 35c is unevenly distributed in the bottom face 30b side of the storage container 30, and is opened so that it may extend in the direction along the bottom face 30b. In the present embodiment, the first and second neutralization tank communication holes 35 c are about 1/3 to 1/2 from the bottom surface 30 b side with respect to the height of the storage container 30, and the back surface 30 c side of the storage container 30. Extends toward the front 30d (wall D). The first and second neutralization tank communication holes 35c have such a size that the neutralizing agent C filled in the upstream first tank 36 cannot pass through.

  As shown in FIGS. 2 and 3, the upstream first tank 36 is a bulging portion 38 (water level detection) that bulges toward the outside of the storage container 30 on the front surface 30 d side and on the top surface 30 a side. Part). Water level electrodes 40 and 41 are inserted and attached to the bulging portion 38 from the top surface 30a side. In addition, the bulging portion 38 is provided with a water inlet side connection portion 43. The water inlet side connecting portion 43 protrudes vertically upward with respect to the top surface 30a, and can be connected to the drain discharge port 27 of the exhaust collecting portion 5 by piping.

  In the storage container 30 employed in the present embodiment, a water inlet side connection portion 43 that functions as an inlet for the water level electrodes 40, 41, drain, and the like is provided on the bulging portion 38 provided at a position unevenly distributed on the front surface 30d side. Yes. As shown in FIG. 5, the bottom surface 38 a of the bulging portion 38 is inclined so as to gently fall toward the inside of the upstream first tank 36.

  In the upstream first tank 36, a neutralizing agent filling portion 45 for filling the upstream first tank 36 with the neutralizing agent C is provided at a position close to the top surface 30 a and the front surface 30 d side. . The neutralizer filling portion 45 is provided so as to protrude upward from the top surface 30a of the storage container 30, and is provided at a position adjacent to the back surface 30c side with respect to the bulging portion 38. A lid 46 is attached to the neutralizing agent filling part 45 so as to be removable as necessary.

  As shown in FIGS. 2, 3 (a), 3 (b) and the like, the upstream second tank 37 is provided with a drainage section 50 (component). The drainage part 50 is provided at a position unevenly distributed on the front surface 30 d side and the bottom surface 30 b side of the upstream second tank 37, and bulges toward the outside of the upstream second tank 37. The drainage part 50 is used for discharging drainage or the like in the storage container 30 in order to perform so-called drainage or the like. The drainage part 50 is provided with a pipe connection port 51 for connecting a drain discharge pipe (not shown).

  As shown in FIG. 2 and FIGS. 5 to 6, the drainage part 50 is connected to the upstream second tank 37 via the connection part 53. As shown in FIG. 6B, the outer shape of the connecting portion 53 is horizontally long when viewed from the front 30d side. Further, the connection portion 53 has a slit-shaped drainage communication hole 55. The cross-sectional shape of the drainage communication hole 55 is substantially corrugated. Therefore, drains and the like can smoothly travel between the upstream second tank 37 and the drainage part 50, and the strength of the connection part 53 is high.

  As shown in FIGS. 2 to 4, a midstream portion 32 is provided at a position adjacent to the upstream portion 31 on the downstream side in the flow direction of drain or the like. The midstream portion 32 is provided to exhibit a so-called oil / water separation function of separating drain and the like from the fuel. That is, the midstream portion 32 has the fluid communication hole 71 on the bottom surface 30b side, and drains and water that will exist below the liquid fuel having a small specific gravity are preferentially placed on the downstream portion 33 side. It can be drained. The midstream portion 32 is also a room (space) provided for detecting fuel leakage. The midstream portion 32 is not filled with the neutralizing agent C because the oil sensor 75 is installed.

  As shown in FIG. 4, a second partition 60 is provided between the upstream second tank 37 and the midstream portion 32 of the upstream portion 31, whereby the upstream second tank 37 and the midstream portion 32 are separated from each other. It is separated. Further, the midstream portion 32 is separated from the downstream portion 33 by a third partition 70 (wall surface A) provided at a position facing the second partition 60.

  As shown in FIG. 4 and FIG. 6A, the second partition 60 is a wall surface that rises substantially vertically upward from the bottom surface 30 b side of the storage container 30, most of which is the top surface 30 a of the storage container 30. Reached up to. As shown in FIG. 4, the second partition 60 has a mountain shape in cross section, and tapers as it approaches the top surface 30 a side. On the other hand, as shown to Fig.6 (a), the 2nd partition 60 has the communication hole 61 between upper and middle flow parts in the position of the front surface 30d side of the storage container 30, and the top | upper surface 30a side. The communication hole 61 between the upper and middle flow portions is in a diagonal relationship with respect to the first and second neutralization tank communication holes 35 c via the internal space of the upstream second tank 37. That is, in the upstream side second tank 37, the upper / middle flow section communication hole 61 is provided at a position farthest from the first and second neutralization tank communication holes 35c.

  The third partition 70 is provided at a position facing the second partition 60 described above. Similarly to the second partition 60, the third partition 70 rises from the bottom surface 30 b side of the storage container 30 substantially vertically upward, and has a substantially chevron-shaped cross-section. That is, the third partition 70 tapers as it approaches the top surface 30a.

  As shown in FIG. 7, the third partition 70 has a fluid communication hole 71 (inflow port) at a position on the bottom surface 30 b side of the storage container 30 and on the back surface 30 c side. The communication hole 71 for liquid passage is a communication hole provided mainly to allow drainage and the like to flow back and forth between the midstream portion 32 and the downstream portion 33. Further, the third partition 70 has a vent hole 72 (communication port) at a position on the top surface 30a side of the storage container 30 and on the front surface 30d side. That is, the ventilating communication hole 72 is in a diagonal relationship with the liquid communication hole 71 on the third partition 70. The venting communication hole 72 is provided mainly to allow air to flow back and forth between the midstream portion 32 and the downstream portion 33, and prevents the drainage drainage performance from being deteriorated due to an air pool above the midstream portion 32. Is provided as the main purpose.

  As shown in FIGS. 2 to 4, an oil sensor 75 is attached to the midstream portion 32. As shown in FIG. 4, the oil sensor 75 is mounted so that it is substantially perpendicular to the top surface 30 a and the detection portion 75 a at the tip portion projects toward the inside of the midstream portion 32. The oil sensor 75 is attached so that the detection part 75a arrives below the horizontal plane passing through the position where the vent hole 72 is provided.

  As shown in FIGS. 2 to 4, the downstream portion 33 is a portion adjacent to the middle flow portion 32 on the downstream side in the drain flow direction. The downstream portion 33 is a portion provided for neutralizing the drain, and is a portion filled with the neutralizing agent C as in the upstream portion 31. The downstream portion 33 includes a third partition 70 (wall surface A) at the boundary with the midstream portion 32, a downstream portion side surface 78 (wall surface B) facing the partition, a top surface 30a, a bottom surface 30b, and a back surface 30c (wall surface C). And a space surrounded by the front surface 30d (wall surface D). The communication hole 71 for liquid passage provided in the third partition 70 functions as an inlet for liquid such as drain to the downstream portion 33.

  On the other hand, as shown in FIG. 8, the downstream portion side surface 78 is provided with a downstream portion drain discharge hole 83 serving as an outlet of drain or the like in the downstream portion 33 and a downstream portion vent hole 84. The downstream drain discharge hole 83 is provided on the downstream side surface 78 at a position unevenly distributed on the bottom surface 30b side and on the back surface 30c side. Therefore, as shown in FIG. 9, when a straight line L connecting the fluid communication hole 71 and the downstream drain discharge hole 83 is assumed, this straight line L is the longitudinal direction of the storage container 30 along the bottom surface 30b and the back surface 30c. Is growing. The straight line L intersects with a fourth partition 80 described in detail later.

  In addition, as described above, the ventilation communication hole 72 provided mainly for ventilation between the downstream portion 33 and the midstream portion 32 is unevenly distributed on the front surface 30d side of the storage container 30 and on the top surface 30a side. In the position. That is, the ventilating communication hole 72 and the downstream drain discharge hole 83 are in an oblique positional relationship across the space in the downstream portion 33. Specifically, as shown in FIG. 9, when a straight line N (virtual line) connecting the ventilation communication hole 72 and the downstream drain discharge hole 83 is assumed, the straight line N represents the internal space of the downstream part 33. Crossing diagonally.

  As shown in FIG. 8, the downstream vent 84 is provided on the downstream side surface 78 at a position unevenly distributed on the top surface 30 a side and on the front surface 30 d side. In other words, the fluid communication hole 71 and the downstream vent hole 84 are in an oblique positional relationship across the space in the downstream portion 33. Specifically, as illustrated in FIG. 9, when a straight line M connecting the fluid communication hole 71 and the downstream portion vent hole 84 is assumed, the straight line M is on the back surface 30 c side of the storage container 30 and the bottom surface. It crosses the internal space of the downstream part 33 from the position on the 30b side, and extends toward the position on the top surface 30a side on the front surface 30d side. Further, the downstream drain discharge hole 83 is in a diagonal relationship with the downstream vent hole 84 on the downstream side surface 78.

  The downstream part 33 has a fourth partition 80 inside, and is divided into two spaces, a downstream part first tank 81 and a downstream part second tank 82, with this as a boundary. The fourth partition 80 rises upward from the bottom surface 30 b in the downstream portion 33 and has a substantially mountain shape in cross section. As shown in FIGS. 9 and 10, the fourth partition 80 is continuous with the bottom surface 30b and the back surface 30c, and there is no gap between them. That is, the fourth partition 80 protrudes toward the inside of the downstream portion 33 with the bottom surface 30b and the back surface 30c as base ends. Therefore, when the straight line L connecting the fluid communication hole 71 and the downstream drain discharge hole 83 is assumed as described above, the fourth partition 80 blocks the straight line L.

  On the other hand, the fourth partition 80 has a large gap between the top 80a and the top surface 30a, and a gap between the side 80b and the front 30d. Further, the height of the fourth partition 80 is adjusted to be lower than the connection port 91 of the drain discharge portion 90 provided for discharging drain or the like from the downstream portion 33 described in detail later. Therefore, in the downstream portion 33, a path through which drain or the like flows between the downstream first and second tanks 81 and 82 beyond the top 80a of the fourth partition 80 (hereinafter also referred to as a first drain passage path 85), A path (hereinafter also referred to as a second drain passage path 86) through which drain or the like flows detouring beyond the side portion 80b of the fourth partition 80 is formed.

  As shown in FIG. 9 and FIG. 10, the height of the fourth partition 80 is about half to about 1/3 with respect to the height of the downstream portion 33, that is, the distance between the top surface 30a and the bottom surface 30b. It is said to be about. Further, the top portion 80a is substantially parallel to the top surface 30a at the portion close to the back surface 30c, but gradually tilts or curves toward the bottom surface 30b side as it approaches the front surface 30d side from the substantially central portion in the width direction. The shape is made.

  The top surface 30a of the downstream portion 33 is provided with a neutralizing agent filling portion 87 (filling port) for filling the downstream portion 33 with the neutralizing agent C. Similarly to the neutralizing agent filling part 45 provided in the upstream part 30, the neutralizing agent filling part 87 is provided at a position unevenly distributed on the top surface 30a side and on the front surface 30d side. That is, the neutralizing agent filling portion 87 is provided at a position unevenly distributed on the front surface 30d side, like the vent hole 72 that communicates the downstream portion 33 and the midstream portion 32 described above. A lid 88 is attached to the neutralizing agent filling portion 87 so as to be detachable as necessary.

  As shown in FIG. 2, FIG. 4, FIG. 11, etc., a drain discharge portion 90 is integrated with the downstream portion side surface 78 constituting the downstream portion 33. The drain discharge portion 90 communicates with the internal space of the downstream portion 33 via a downstream drain discharge hole 83 and a downstream vent hole 84 provided in the downstream portion side surface 78. As shown in FIGS. 2 and 4, the drain discharge portion 90 is located adjacent to the outside of the downstream portion 33. As shown in FIG. 11, the drain discharge unit 90 includes a connection port 91 for connecting a pipe (not shown) for discharging drain and the like out of the hot water supply device 1, and a drain port 92 for draining water. Have

  As shown in FIG. 11, the drain discharge portion 90 is bent into a substantially S shape when the storage container 30 is viewed from the outside, and the intermediate portion extends so as to cross the downstream portion side surface 78 obliquely. In addition, the drain discharge portion 90 is bent so that both end portions thereof are bent with respect to the intermediate portion, and extend along the top surface 30a and the bottom surface 30b. The connection port 91 is provided on the top surface 30a side of the storage container 30 and on the front surface 30d side. That is, the connection port 91 is provided at a position facing the downstream portion vent port 84 provided in the downstream portion side surface 78 that partitions the downstream portion 33 and the drain discharge portion 90. Further, the water outlet 92 is provided at a position on the bottom surface 30b side of the storage container 30 and on the back surface 30c side. That is, the water outlet 92 is provided at a position facing the downstream drain discharge hole 83 provided in the downstream side surface 78.

  The drain port 92 is used to drain water from the storage container 30 and is normally closed. For this reason, when drain or the like flows into the drain discharge portion 90 from the downstream portion 33 through the downstream drain discharge hole 83, the drain or the like has risen to the top surface 30a side through the intermediate portion of the drain discharge portion 90. Thereafter, the water is discharged from the connection port 91 to the outside of the storage container 30.

  As shown in FIG. 1, the silencer 6 has a cylindrical space 6 b that is surrounded in all directions and communicated in the vertical direction. The space 6b in the silencer 6 communicates with the exhaust collecting part 5 on the lower end side. The silencer 6 has an exhaust port 6c on the upper end side, and the space 6b communicates with the external atmosphere via the exhaust port 6c.

  Then, operation | movement of the hot water supply apparatus 1 is demonstrated. In the hot water supply device 1, for example, when a flow rate detection signal is input from a flow rate sensor (not shown) provided in the middle of the incoming water pipe 26, the combustion unit 2 starts a combustion operation. Combustion gas generated in the combustion cylinder 12 along with the combustion operation in the combustion unit 2 flows downward in the combustion case 3. Thereafter, the combustion gas flows into the exhaust collecting portion 5 provided on the bottom side of the hot water supply device 1.

  The combustion gas that has flowed into the exhaust collecting portion 5 flows in the exhaust collecting portion 5 in the horizontal direction, that is, toward the side connected to the silencer 6 (rightward in FIG. 1). Thereafter, the combustion gas flows toward the silencer 6 connected above the exhaust collecting part 5. That is, the combustion gas generated in the combustion section 2 and flowing downward in the combustion case 3 changes its flow direction in the exhaust collecting section 5 and flows upward in the muffler section 6 before being exhausted. It is discharged outside through the mouth 6c.

  On the other hand, hot water supplied from the outside via the water inlet pipe 26 flows into the secondary heat exchanger 25 via the water inlet 25 a of the secondary heat exchanger 25. The hot water flowing into the secondary heat exchanger 25 mainly recovers the latent heat contained in the combustion gas and is heated by this. Along with this, moisture contained in the combustion gas is aggregated and drainage is generated on the surface of the secondary heat exchanger 25 and the like.

  Hot water heated by the secondary heat exchanger 25 exits the water outlet (not shown) of the secondary heat exchanger 25 and enters the primary heat exchanger 20 from the water inlet (not shown) of the primary heat exchanger 20. Flow into. The hot water flowing into the primary heat exchanger 20 is heated by heat exchange with the combustion gas generated along with the combustion of fuel in the combustion section 2. In the primary heat exchanger 20, the sensible heat mainly contained in the combustion gas is recovered. The hot water heated in the primary heat exchanger 20 in this way flows out from the water outlet 20a of the primary heat exchanger 20, and is supplied toward a curan or a bathtub or the like as a hot water supply destination.

  As described above, in the hot water supply apparatus 1, drainage is generated along with heat exchange in the secondary heat exchanger 25. The drain generated here falls in the combustion case 3 and collects in the exhaust collecting portion 5. Thereafter, the drain flows into the storage container 30 of the neutralization device 7 provided below the exhaust collecting portion 5 through the drain discharge port 27 provided at the bottom of the exhaust collecting portion 5, and is stored therein. The neutralizing agent C is neutralized.

  More specifically, the drain discharged through the drain discharge port 27 flows into the first neutralization tank 36 in the upstream portion 31 of the storage container 30 from the water inlet side connection portion 43 connected to the drain. This drain is neutralized by the reaction with the neutralizing agent C filled in the first neutralization tank 36.

  The liquid level of drain etc. stored in the first neutralization tank 36 is provided with slit-shaped first and second neutralization tank communication holes 35c provided on the back surface 30c side of the storage container 30 in the first partition 35. When the height exceeds the height (hereinafter also referred to as the water seal reference liquid level X), drain or the like flows into the second neutralization tank 37 side through the first and second neutralization tank communication holes 35c. . Moreover, when the liquid level of drain etc. exceeds the water seal reference | standard liquid level X, it will be in the state (water seal state) in which the 1st, 2 neutralization tank communication hole 35c was sealed with drain. Thereby, even if the combustion gas flows into the first neutralization tank 36 from the exhaust collecting portion 5 to the neutralization device 7 side, it can be prevented from leaking through the neutralization device 7.

  When drainage or the like further flows into the storage container 30 from the above state, the liquid level in the first and second neutralization tanks 36 and 37 rises, and eventually between the upper and middle flow portions provided in the second partition 60. It reaches a liquid level that passes through the lower end of the communication hole 61 (hereinafter also referred to as a reference liquid level Y between the upper and middle flows). And if the liquid level of the drain etc. in the storage container 30 exceeds the reference liquid level Y between drain and middle flow, it will flow in from the 2nd neutralization tank 37 side of the upstream part 31 to the middle flow part 32 side.

  The drain that has flowed into the middle flow portion 32 side passes through the communication hole 71 for liquid passage provided in the third partition 70 at the boundary portion with the downstream portion 33 on the bottom surface 30 b side and at a position unevenly distributed on the back surface 30 c side. It flows out to the downstream part 33 side. That is, in the midstream portion 32, the drain flows preferentially from the bottom surface 30b side toward the downstream portion 33 side.

  Here, the hot water supply apparatus 1 of this embodiment heats hot water by burning liquid fuel in the combustion unit 2. Therefore, there is a possibility that the liquid fuel leaked in the combustion unit 2 for some reason flows into the storage container 30. When a small amount of liquid fuel has leaked from the combustion unit 2 into the neutralization device 7, it can be captured by the first partition 35. On the other hand, when the amount of liquid fuel leaked from the combustion unit 2 into the neutralization device 7 is large, the liquid fuel may also flow into the midstream unit 32 side.

  Here, the combustion unit 2 burns liquid fuel having a specific gravity smaller than that of water such as kerosene. For this reason, when the liquid fuel leaks as described above, the liquid fuel accumulates in a layered state in the middle stream portion 32 in a state of being separated upward such as drainage. In the present embodiment, since drain or the like flowing into the midstream portion 32 is preferentially discharged from the bottom surface 30b side to the downstream portion 33 side, even if the liquid fuel leaks, it flows out to the downstream portion 33 side. The possibility can be minimized.

  An oil sensor 75 is attached to the midstream portion 32 so as to protrude downward from the top surface 30a side. For this reason, when the liquid fuel flows into the midstream portion 32, this can be detected by the oil sensor 75. In the hot water supply apparatus 1 of the present embodiment, the fuel system for the combustion unit 2 is shut off on condition that the liquid fuel is detected by the oil sensor 75, thereby preventing the occurrence of problems due to fuel leakage.

  When drain or the like flows into the downstream portion 33 as described above, the drain or the like reacts with the neutralizing agent C filled in the downstream portion 33 and is neutralized. The drain or the like neutralized in the downstream portion 33 is discharged toward the drain discharge portion 90 from the downstream drain discharge hole 83 provided on the bottom surface 30b side in the downstream portion side surface 78. The drain discharged into the drain discharge portion 90 gradually rises in the drain discharge portion 90 along the inclination. And it is discharged | emitted from the connection port 91 provided in the upper end side of the drain discharge part 90. FIG.

  On the other hand, specifically, the third partition 70 that separates the midstream portion 32 and the downstream portion 33 has a foreign material biting into a liquid passage hole 71 provided for the passage of drain or the like, thereby causing a liquid passage hole. There is a possibility that drain or the like hardly passes through 71 (drain clogging). However, in such a state, when the water level of drain or the like in the midstream portion 32 rises and eventually reaches the height at which the venting communication hole 72 is provided, the midstream portion 32 via the venting communication hole 72 is reached. Drain or the like flows out toward the downstream portion 33 side.

  Here, as described above, the ventilating communication hole 72 is at an oblique position through the space in the downstream portion 33 with respect to the downstream drain discharge hole 83 for discharging drain or the like from the downstream portion 33. There is a relationship. Therefore, even when drain or the like flows from the midstream portion 32 to the downstream portion 33 through the venting communication hole 72, a path through which the drain or the like flows in the downstream portion 33 and a residence time of the drain or the like are long. . Accordingly, even when drain or the like flows into the downstream portion 33 from the venting communication hole 72, the drain or the like flows into the downstream portion 33 through the fluid communication hole 71. Etc. are discharged in a sufficiently neutralized state.

  As described above, in the neutralization device 7 employed in the present embodiment, the fluid communication hole 71 that serves as an inflow port for drain and the like to the downstream portion 33 and the drain port for the drain stored in the downstream portion 33 are provided. A fourth partition 80 is provided so as to block the straight line L connecting the downstream drain discharge hole 83. Further, the downstream portion 33 is a path (first drain passage path 85) through which drainage or the like flows between the downstream first and second tanks 81 and 82 partitioned by the fourth partition 80 beyond the top 80a of the fourth partition 80. And a path (second drain passage path 86) through which drain or the like flows around the side of the side portion 80b of the fourth partition 80. Therefore, in the neutralizing device 7, drainage or the like comes into contact with the neutralizing agent C present on the downstream side with respect to the fourth partition 80 from at least two directions, and the substantially spherical neutralizing agent C is substantially over the entire circumference. It is consumed evenly.

  Further, since the flow of drain or the like in the downstream portion 33 is divided in at least two directions along the fourth partition 80, the drain or the like in the downstream first tank 81 located on the upstream side with respect to the fourth partition 80. The flow is relatively random. Therefore, in the neutralizer 7, the neutralizer C in the downstream first tank 81 is also contacted substantially uniformly over the entire circumference without drain or the like being biased to a part of the neutralizer C. The neutralizing agent C in the side first and second tanks 81 and 82 is consumed substantially uniformly over the entire circumference. Therefore, in the neutralizing device 7, problems such as variations in the characteristics (neutralization performance) of the neutralizing agent C and the obstruction of the flow of drain due to the neutralizing agent C are unlikely to occur.

  In the neutralization device 7 of the present embodiment, the fourth partition 80 in the storage container has a fluid communication hole 71 serving as an inlet for the drain and the like to the downstream portion 33, and a flow for discharging the drain and the like from the downstream portion 33. It is provided so as to block the straight line L connecting the downstream drain discharge hole 83 serving as the outlet. Therefore, in the neutralization device 7 of the present embodiment, the drain or the like that has flowed into the downstream first tank 81 from the fluid communication hole 71 is deflected by the fourth partition 80, and the first and second drain passage paths. After flowing through 85, 86, it is discharged from the downstream second tank 82. Therefore, in the neutralization device 7, the residence time of drain or the like in the downstream portion 33 becomes longer and is discharged in a sufficiently neutralized state.

  As described above, the height of the fourth partition 80 is about 1/3 to 1/2 of the height of the storage container 30, so that the drain etc. flowing in the storage container 30 is reduced. The acting channel resistance is small. Therefore, for example, even when a large amount of rainwater suddenly flows into the neutralizing device 7, it can be discharged efficiently, and the overflow of drains or the like is detected by the water level electrodes 40 and 41. Can be prevented.

  Further, as described above, in the neutralizing device 7, the height of the fourth partition 80 is lower than the height of the storage container 30. Further, the fourth partition 80 has a shape that decreases in height as it approaches the front surface 30d side of the storage container 30, that is, the side portion 80b side. Therefore, the neutralizing device 7 can easily fill the downstream portion 33 with the neutralizing agent C.

  Further, as described above, in the neutralization device 7 of the present embodiment, the water inlet side connection portion 43 that is an inlet of drain or the like to the first neutralization tank 36 that forms the upstream portion 31 is provided on the top surface 30a side and the front surface 30d. On the other hand, the first and second neutralization tank communication holes 35c, which are outlets, are provided at positions that are unevenly distributed on the bottom surface 30b side and the back surface 30c side. Therefore, in the neutralization device 7, the drain and the like flowing into the first neutralization tank 36 also stay in the upstream portion 31 for a long period of time, and the neutralizer C filled in the first neutralization tank 36 is sufficiently medium. Will be summed.

Although the 4th partition 80 illustrated in the said embodiment protruded toward the inner side of the downstream part 33 by making the bottom face 30b and the back surface 30c into a base end, this invention is not limited to this. That is, the 4th partition 80 is good also as what stood up using one side which constitutes downstream part 33, such as bottom 30b and back 30c, as a base end. More specifically, the fourth partition 80 is shaped so as to hang down from the top surface 30a side, and a drain or the like can pass between the lower end portion and the bottom surface 30b side (reference example) . It is good also as a structure which provided the clearance gap through which drain etc. can pass also between the back surface 30c side. In addition, the fourth partition 80 may have a shape having a discontinuous portion in the middle of the width direction (a direction from the front surface 30d to the back surface 30c), and may be configured such that drain or the like can pass through the discontinuous portion. That is, in the storage container 30, as described above, the first drain passage path 85 through which the drain or the like flows beyond the top 80a of the fourth partition 80, or the second through which the drain or the like flows through the side 80b of the fourth partition 80. Instead of providing the drain passage path 86, or in addition to this, another path for flowing the drain or the like may be provided.

  In the neutralization device 7 of the present embodiment, the tanks constituting the midstream portion 32 and the downstream portion 33 communicate with each other via a fluid communication hole 71 and a vent communication hole 72 provided in the third partition 70. . The venting communication hole 72 is provided at a position away from the liquid communication hole 71 on the top surface 30 a side of the storage container 30. For this reason, the neutralizing device 7 allows drainage or the like to pass from the midstream portion 32 side to the downstream portion 33 side through the venting communication hole 72 even if the fluid communication hole 71 is clogged. Can do.

  In the neutralization device 7 of the present embodiment, even if the drain flows to the downstream portion 33 side through the vent hole 72, the drain obliquely crosses at least the space in the downstream portion 33. Will flow. Therefore, in the neutralization device 7 of the present embodiment, even if the drain flows to the downstream portion 33 side through the vent hole 72, the residence time of the drain in the downstream portion 33 becomes long, A sufficient reaction time with the neutralizing agent C is ensured. Therefore, according to the neutralizing device 7 of the present embodiment, even if the drain is forced to flow to the downstream portion 33 side through the vent hole 72, the drain is sufficiently neutralized and discharged. can do.

  Further, in the above-described embodiment, the ventilation communication holes 72 are unevenly distributed on the front surface 30d side in the same manner as the neutralizing agent filling portion 87 provided to fill the downstream portion 33 with the neutralizing agent C. Therefore, the neutralizing device 7 can perform the filling operation of the neutralizing agent C efficiently by setting the front surface 30d side to be obliquely upward and the back surface 30c side to be obliquely downward. It is possible to easily and reliably prevent erroneous filling to the middle flow portion 32 side through the hole 72. Further, if the neutralizing agent C is prevented from entering the middle flow portion 32 in this way, the neutralizing agent C rolls in the middle flow portion 32 when the neutralizing device 7 is transported or installed, and the oil sensor 75. It is also possible to prevent the occurrence of a malfunction such as an impact on the oil sensor or a failure of the oil sensor 75.

  In the above embodiment, a configuration in which the ventilation communication hole 72 is provided on the same side as the neutralizing agent filling portion 87 (in the present embodiment, the front 30d side) in consideration of the ease of filling the filler C and the like. Although illustrated, this invention is not limited to this, It is good also as a structure which provided the communicating hole 72 for ventilation | gas_flowing in a different site | part.

  In the storage container 30 employed in the neutralization device 7 described above, since the cross-sectional shape of the connection portion 53 that connects the second neutralization tank 37 and the drainage portion 50 of the upstream portion 31 is a waveform, the strength of the connection portion 53 is high. high. For this reason, the neutralization device 7 is less likely to be damaged when assembled or transported to the hot water supply device 1 or when a pipe is connected to the pipe connection port 51.

  In the said embodiment, although the structure which made the cross-sectional shape of the connection part 53 of the 2nd neutralization tank 37 and the piping connection port 51 into a waveform was illustrated, this invention is not limited to this, A cross-sectional shape is flat. It may be anything. Moreover, although the neutralization apparatus 7 illustrated what only the cross-sectional shape of the connection part 53 is a waveform, this invention is not limited to this, The connection part of each structure part which comprises the storage container 30 Specifically, the connection portion between the downstream portion 33 and the drain discharge portion 90 may be configured similarly.

  When the neutralizer 7 is in a state where drain or the like is stored in the upstream portion 31 of the storage container 30 to a height exceeding the first and second neutralization tank communication holes 35c, the neutralization apparatus 7 is interposed between the first and second neutralization tanks 36 and 37. A so-called water-sealed state in which a gas such as combustion gas cannot go back and forth can be obtained. In addition, the dynamic pressure acts on the drain or the like stored by combustion gas generated during the combustion operation flowing into the storage container 30, and the liquid level in the first and second neutralization tanks 36 and 37 varies. In consideration of this, the height of the upper and middle flow communication holes 61 of the second partition 60 is such that drainage and the like can be stored up to a liquid level that can be in a water-sealed state even if there is such a liquid level fluctuation. It has been adjusted. Therefore, according to the configuration described above, it is possible to prevent the combustion gas from leaking through the neutralizing device 7. Therefore, the neutralization device 7 can be suitably used for a device that causes inconvenience if the combustion gas leaks through the neutralization device 7, for example, when the hot water supply device 1 is an indoor installation type. .

  In addition, as described above, when it is desired to more reliably prevent the combustion gas from leaking through the neutralization device 7, there is a case where drain or the like is not sufficiently accumulated in the first and second neutralization tanks 36 and 37. However, it is desirable that the first and second neutralization tanks 36 and 37 can be replenished with hot water or the like so that a water-sealed state can be formed. By adopting such a configuration, the first and second neutralization tanks can be used, for example, immediately after the hot water supply device 1 is installed and started to be used, or even after the water has been drained from the neutralization device 7. By replenishing hot water with 36 and 37, a water-sealed state is formed, and leakage of combustion gas through the neutralizing device 7 can be prevented.

  As described above, the storage container 30 is excellent in productivity because the constituent parts are integrally formed by a blow molding method. The storage container 30 does not necessarily have to be manufactured by a blow molding method. For example, the storage container 30 may be divided into a plurality of parts and connected to each other by piping or the like.

  The storage container 30 shown in the above embodiment has the first neutralization tank 36 in the upstream portion 31 filled with the neutralizing agent C when draining water from the drainage port 92 of the drainage unit 50 or drain discharge unit 90. In addition, the drain or the like in the storage container 30 is discharged through the downstream portion 33. That is, the drain flow direction when draining the drainage part 50 and the drain discharge part 90 drains the first neutralization tank 36 and the downstream part 33 that are tanks filled with the neutralizing agent C. It is arranged downstream. Therefore, the neutralizing device 7 can neutralize and discharge the drain remaining inside when draining water. In the above embodiment, an example in which the drainage unit 50 and the drain discharge unit 90 are provided so that the drain or the like passes through the tank filled with the neutralizing agent C at the time of draining water is illustrated. However, the present invention is not limited thereto, and a configuration in which the drainage unit 50 and the drain discharge unit 90 are provided in an arbitrary place may be employed.

  As described above, in the neutralization device 7 of the present embodiment, the communication hole 61 between the upper and middle flow portions of the second partition 60 is provided at a high position (close to the top surface 30a), and the combustion gas is stored in the storage container 30. It has a structure that can store drainage or the like up to a liquid level that can be in a water-sealed state even if it flows into the inside. On the other hand, the drainage part 50 and the water discharge port 92 are provided at positions adjacent to the second partition 60 on the upstream side and the downstream side in the flow direction such as drain. Therefore, the neutralization device 7 can quickly and surely drain the storage container 30.

  In the neutralizing device 7, the water level electrodes 40 and 41 for detecting the water level are provided in the bulging portion 38 provided in the upstream portion 31. Therefore, the hot water supply device 1 does not reach a level at which the liquid level of drain or the like may overflow from the storage container 30 based on information detected by the water level electrodes 40 and 41 provided in the neutralization device 7. And appropriate measures can be taken to prevent overflow.

  Since the hot water supply device 1 of the present embodiment includes the neutralization device 7 described above, only a part of the neutralizing agent C is locally dissolved, and accordingly, the neutralization performance varies and the circulation of drainage. Problems such as inhibition are unlikely to occur.

  In the neutralization device 7 described above, the configuration in which the water level electrodes 40 and 41 are employed as the configuration for detecting the water level is shown, but the present invention is not limited to this. That is, instead of the water level detecting means including the water level electrodes 40 and 41, a conventionally known float sensor, ball tap, pressure sensor, optical sensor, or the like may be used.

  Although the hot water supply device 1 shown in the above embodiment includes the so-called reverse combustion type combustion unit 2, the present invention is not limited to this, and includes a normal combustion type combustion unit. It may be. Further, as in a conventionally known vaporization type combustion apparatus, any type of combustion may be employed such as a type in which liquid fuel is vaporized or a type in which gas is burned. Furthermore, the hot water supply device 1 is not limited to a type having only a so-called general hot water supply function, but instead of a general hot water supply function, a hot water supply function, a hot water heating function, or a combination of these functions. It may be a machine.

It is an apparatus block diagram which shows the structure of the hot water supply apparatus concerning one Embodiment of this invention. It is a perspective view which shows the neutralization apparatus concerning one Embodiment of this invention. (A) is a front view which shows the neutralization apparatus concerning one Embodiment of this invention, (b) is a top view which shows the said neutralization apparatus. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. (A) is CC sectional drawing of Fig.3 (a), (b) is DD sectional drawing of (a). It is EE sectional drawing of Fig.3 (a). It is FF sectional drawing of Fig.3 (a). It is a perspective view which shows the GG cross section of Fig.3 (a). It is HH sectional drawing of Fig.3 (a). FIG. 3 is a view taken in the direction of an arrow I in FIG. 2.

1 Hot-water supply device 2 Combustion part (combustion means)
4 Combustion gas passage 7 Neutralizer 20 Primary heat exchanger (heat exchange means)
25 Secondary heat exchanger (heat exchange means)
30 Reservoir 30a Top 30b Bottom 30c Back (Wall C)
30d Front (Wall D)
33 Downstream part (neutralizing agent storage part)
70 3rd partition (Wall A)
71 Communication hole for fluid flow (inlet)
72 Communication hole for ventilation (communication port)
78 Downstream side (wall B)
83 Downstream drain discharge hole (discharge port)
87 Neutralizing agent filling part (filling port)
N straight line (virtual line)

Claims (5)

Heat capable of heating hot water or a heat medium by heat exchange between a combustion means for burning fuel, a combustion gas passage through which combustion gas generated by a combustion operation in the combustion means flows, and a combustion gas flowing through the combustion gas passage A neutralizing device for discharging drain generated in a hot water heating apparatus provided with an exchange means,
Having a storage container communicating with the combustion gas passage and capable of storing drain;
In the storage container, a neutralizing agent storage portion capable of storing a neutralizing agent for drain neutralization is provided,
A wall surface A provided with a drain inlet for the neutralizing agent storage section;
Wall surface B facing the wall surface and provided with a discharge port for discharging drain from the neutralizing agent storage unit,
The wall surfaces A, B, the top surface of the storage container, and the wall surfaces C, D intersecting the bottom surface and facing each other;
A partition provided in the neutralizing agent storage section,
When a virtual line connecting the inlet and the outlet is assumed, the partition is provided so as to cross the virtual line,
The partition is continuous with the bottom surface and the wall surface C without a gap, and there is a space between the partition and the top surface and between the partition and the wall surface D,
The drain that has flowed into the neutralizing agent storage portion from the inlet can be diverted beyond the top of the partition and pass toward the outlet, and
It is possible to allow the drain that has flowed into the neutralizing agent storage portion from the inlet to bypass the side of the partition and pass toward the outlet.
The wall surface A is provided with a communication port that communicates between the neutralizing agent storage portion and a space located upstream in the drain flow direction with respect to the neutralizing agent storage portion,
The inlet and the outlet are located on the bottom surface side of the storage container and unevenly distributed on the wall surface C side;
When the communication port is located on the top surface side of the storage container and is unevenly distributed on the wall surface D side, and assuming a virtual line connecting the communication port and the discharge port, the virtual line accommodates the neutralizing agent. Neutralizer characterized by crossing the internal space of the section diagonally. The top surface of the storage container is provided with a filling port that can be filled with a neutralizing agent in the neutralizing agent storage part,
The neutralization apparatus according to claim 1, wherein the filling port is provided at a position unevenly distributed on the wall surface D side. The storage container has a storage part communicated via a communication port provided in the wall surface A,
The neutralization apparatus according to claim 2, wherein the storage unit is provided with fuel detection means capable of detecting the presence of liquid fuel.   The neutralization apparatus according to any one of claims 1 to 3, wherein the storage container is molded by a blow molding method. Combustion means for burning fuel;
A combustion gas passage through which combustion gas generated in association with the combustion operation in the combustion means flows;
Heat exchange means capable of heating hot water or a heat medium by heat exchange with the combustion gas flowing through the combustion gas passage;
A hot water supply apparatus comprising the neutralization apparatus according to claim 1.

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