JP5207749B2 - Neutralizer and combustion apparatus equipped with neutralizer - Google Patents

Description

  The present invention relates to a neutralizer that neutralizes drain (water) generated in association with latent heat recovery in a latent heat recovery type hot water supply apparatus, and a combustion apparatus including the neutralizer.

  In recent years, in addition to a primary heat exchanger heated by a combustion device, a secondary heat exchanger that recovers latent heat of combustion exhaust that has heated the primary heat exchanger when performing additional combustion and / or hot water supply combustion in a bath That is, a combustion apparatus including a heat exchanger for recovering latent heat has been developed (see Patent Document 1).

  In the combustion appliance of Patent Document 1, a drain collecting member 26 is provided between the primary heat exchanger 16 and the secondary heat exchanger 18. The collecting member 26 receives drain (water) generated when the latent heat is recovered by the secondary heat exchanger 18. This drainage is a condensation of water vapor in the combustion exhaust gas, and it is acidic water with a pH of 2.5 to 3. If drained as it is, it will dissolve concrete, soak in the soil and adversely affect plants, or metal It may cause corrosion.

  Therefore, in Patent Document 1, drainage accumulated in the collecting member 26 is received by the neutralizer 28. A neutralizer is contained in the neutralizer 28, and the drainage is neutralized. The neutralized drain is drained together with the bath residual water and the like.

JP 2003-343830 A

By the way, the neutralizer 28 of the latent heat recovery type hot water supply apparatus as disclosed in Patent Document 1 is accommodated in an instrument and has a relatively large size, and as shown in FIG. The neutralizing agent is accommodated and stored at one end for neutralization reaction.
FIG. 5 shows a neutralizer 1 having substantially the same structure as that of Patent Document 1.
Since the body 4 is filled with a neutralizing agent and the neutralization reaction of the drain is an exothermic reaction, it is sufficient that the drain entering from the drain introduction hole 2 formed at the upper end of the body 4 is removed from the lower end of the body 4. Since the neutralization reaction is not performed, the neutralized “drain” is discharged from the drain discharge hole 3 near the upper end of the main body.

However, for example, when a combustion device such as a small hot water supply device is attached using a space where a balance bath or the like was originally installed, it is difficult to accommodate such a neutralizer 1 in a small instrument.
Therefore, there is a method in which the neutralizer 1 is not accommodated in the appliance, and the drain pipe from the appliance is extended and connected to the neutralizer fixed in the bathroom.
However, in recent years, as the bathroom has become a unit bath, the unit bath has a structure in which the floor of the bathroom is raised from the conventional level, while the neutralizer must be placed at a lower position than the appliance. It was difficult to connect the neutralizer 1 having a large vertical dimension to a so-called hole-in-one type hot water supply apparatus.

  The present invention has been made in order to solve the above-described problems. A combustion apparatus including a compact neutralizer capable of obtaining sufficient neutralization performance and a neutralizer for a drain generated from a latent heat exchanger. It is intended to provide.

The present invention is a container in which a combustion appliance is provided outdoors by using a wall hole formed in the outer wall of a building from which a balance-type bath tub is removed, the drain from the combustion appliance is guided into the bathroom, and the drain is introduced by natural fall be those with a body, has a drain inlet for introduction of drain is provided in the container body, and a drain discharge hole for discharging the drain is provided in the container body, the container inside the body, the partition wall for partitioning a plurality of spaces are provided to fill the neutralizing agent, above the septa, the space of the neutralizing agent is movable magnitude be formed, furthermore, the An air hole opened in the bathroom is formed in the container body, and the air hole is set to be above the position of the drain water level of the container body.
According to the above configuration, since the partition wall for partitioning the plurality of spaces filled with the neutralizing agent is provided inside the container body, the container body is formed longer in any direction depending on how the partition wall is provided. Therefore, it is not always necessary to use a vertically long neutralizer.
Furthermore, a space of a size that allows the neutralizing agent to move is formed above the partition wall. By tilting the neutralizer, one side of the neutralizer can be It is possible to move from the space to the other space, and to move the neutralizing agent of the space with little consumption to the space with much consumption. Thereby, by always lengthening the contact time (contact path) between the drain and the neutralizing agent, the neutralizing agent can be used without waste while promoting the neutralization reaction.
Alternatively, when the neutralizer in a specific space is reduced, the neutralizer filled in another space can be transferred using the space above the partition wall, and the neutralizer filling The state can be made uniform.
Thus, according to the present invention, it is possible to obtain a compact neutralizer capable of obtaining a sufficient neutralization performance as a shape that does not take dimensions in the vertical direction.

Preferably, a plurality of spaces formed by a plurality of partition walls having communication portions are provided inside the container body, and a neutralizer insertion port is further provided above the drain water level of the container body. Is formed.
According to the above configuration, if a plurality of partition walls are formed to increase the space filled with the neutralizing agent, the dimensions of the container body can be reduced in a direction different from the direction in which the partition walls are arranged.
In addition, if the neutralizer is filled in each of the plurality of spaces so that the drain moves sequentially, the path and time for the drain to contact the neutralizer can be lengthened.
Furthermore, a neutralizing agent can be put in from the insertion port at the upper part of the container body, and the neutralizer can be used for a long time.

Preferably, among the plurality of spaces filled with the neutralizing agent, the neutralizing agent filling space located in the immediate vicinity of the drain introduction hole is formed to be equal to or larger than other spaces. And
According to the above configuration, the neutralizing agent is lost most in the space close to the drain introduction hole among the plurality of spaces defined by the respective partition walls. It is preferable that a large amount of filler can be added.

Preferably, of the plurality of spaces filled with the neutralizing agent, a bottom portion of the neutralizing agent filling space located in the immediate vicinity of the drain introduction hole is an inclined surface that descends toward a space where the drain moves next. It is characterized by being.
According to the above configuration, since the neutralization reaction is an exothermic reaction, the neutralized drain moves above the water level. Therefore, even if the space for filling the neutralizing agent in the immediate vicinity of the drain introduction hole is increased, if the drain accumulates at a deep position, it is not preferable for promoting the neutralization reaction.
On the other hand, the neutralization reaction can be efficiently promoted in the large space by reducing the lower volume and increasing the upper volume in the large space.

Preferably, the container body is provided with a drain introduction spare space connected to the drain introduction hole, and between the spare space and the neutralizer filling space filled with the neutralizer. A partition wall is formed, and a communication hole smaller than the outer shape of the neutralizing agent is provided between the partition wall and the filling space of the neutralizing agent.
According to the above configuration, the neutralizing agent filling space and the drain introduction hole are separated by the spare space, so that the neutralization agent approaches the drain introduction hole and solidifies there to effectively prevent the hole from being closed. Is done. Moreover, since it is possible to prevent the passage from becoming narrow even if it is not closed, the cross-sectional area of the passage through which drainage can flow can be maintained without being narrowed.

The present invention is a container in which a combustion appliance is provided outdoors by using a wall hole formed in the outer wall of a building from which a balance-type bath tub is removed, the drain from the combustion appliance is guided into the bathroom, and the drain is introduced by natural fall A combustion apparatus comprising a body, comprising a pipe for supplying a fluid heated by a combustion section , and leading a primary heat exchanger heated by combustion of the combustion means and a fluid before entering the primary heat exchanger , A latent heat recovery heat exchanger that is a secondary heat exchanger for recovering latent heat of exhaust gas generated by combustion of the combustion means, and generated when the latent heat is recovered by the latent heat recovery heat exchanger And a neutralizer for neutralizing the drain. The neutralizer is provided in a container body, and a drain introduction hole for introducing drain, and the drain body provided in the container body. Drain discharge for discharging And a partition wall for partitioning a plurality of spaces filled with the neutralizing agent is provided inside the container body, and a space of a size that allows the neutralizing agent to move above the partition wall. Further, the container body is formed with an air hole opened in the bathroom, and the air hole is set to be above the drain water level position of the container body. It is characterized by.
According to the above configuration, for the same reason as described in the first invention, a compact neutralizer capable of obtaining sufficient neutralization performance as a shape that does not take a dimension in the vertical direction, A combustion apparatus provided with a sum machine can be provided.

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
The embodiments described below are preferable specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention particularly limits the present invention in the following description. As long as there is no description of the effect, it is not restricted to these aspects.

In FIG. 1, the combustion device 40 is a hot water supply device in this embodiment, and the combustion device 40 has a main body 41 formed of an equipment case or the like. The tub 42 and the neutralizer 20 are connected to the combustion device 40. In the present embodiment, the neutralizer 20 is installed outside the instrument, that is, outside the main body 41, as will be described later. Since the neutralizer 20 of the present embodiment is extremely compact, it may be accommodated in the main body 41.
A burner 53, a primary heat exchanger 54, and a secondary heat exchanger (latent heat recovery heat exchanger) 56 are accommodated in the combustion chamber 43 of the combustion device 40. The secondary heat exchanger 56 includes a drain. A receiving tray 57 as a receiving portion is arranged.
A gas pipe 51 is connected to the burner 53 so that fuel gas is supplied via a gas proportional valve 52.

The primary heat exchanger 54 is provided with a hot water supply pipe 44 and a follow-up pipe line 58, and a large number of fins 54a for heat exchange are attached to these pipes. The primary heat exchanger 54 is positioned immediately above the burner 53 so as to be heated by the burner 53.
The secondary heat exchanger 56 is a heat exchanger for collecting latent heat, and is provided at a position where the combustion exhaust contacts after heat exchange in the primary heat exchanger 54 due to combustion of the burner 53, for example, In this embodiment, the primary heat exchanger 54 is positioned downstream of the exhaust passage 75.
As a result, the hot water recovered from the latent heat in the combustion exhaust gas by the secondary heat exchanger 56 heats the hot water flowing in the hot water supply pipe 44.

In the tray 57 immediately below the secondary heat exchanger 56, water vapor present in the combustion exhaust is condensed on the surface of the secondary heat exchanger 56 having a low temperature, and dripped drain (water) is accumulated. This drain contains nitrogen oxides and becomes acidic drain water. The drain is guided to the neutralizer 20 through the drain pipe 76, neutralized by the neutralizer 20, and guided to a discarding unit (not shown).
The detailed configuration of the neutralizer 20 will be described later.

In the hot water supply pipe 44, the clean water that has entered from the water intake pipe 45 is first guided to the secondary heat exchanger 56, heated by latent heat recovery, and the heated hot water is further guided to the primary heat exchanger 54. The hot water heated by the primary heat exchanger 54 is discharged from the hot water outlet pipe 47 through the hot water tap 48 at a predetermined temperature.
A bypass pipe 46 is provided in the water inlet pipe 45 and the hot water outlet pipe 48.

  The follow-up pipe 58 is a circulation pipe including an outgoing pipe 58b in which hot water heated by the primary heat exchanger 54 is directed to the bathtub 42, and a return pipe 58a from the bathtub 42 to the appliance. The return pipe 58a includes A bath thermistor 74 and a circulation pump 71 are provided. Thereby, the circulation pump 71 is driven, the residual water of the bathtub 42 can be drawn in, and it can chase while seeing bathtub temperature.

The combustion apparatus 40 of the present embodiment is configured as described above, and next, an embodiment of the neutralizer 20 will be described.
FIG. 2 is an explanatory diagram showing an example of installation of the neutralizer 20.
Here, for example, a case where a combustion apparatus such as a small hot water supply apparatus is attached using a space where a balanced bath pot or the like was originally installed is shown.
Specifically, a through-hole (not shown) formed in the bathroom wall 61 is provided toward the outside, and combustion using a bath-in-hole with a hot-water heater of a one-in-one type using this through-hole. When the apparatus 40 is attached, since the main body 41 of such a combustion apparatus 40 is very compact, it is difficult to accommodate the neutralizer 20 therein.

Furthermore, when unit bathing progresses by reforming the bathroom 60, etc., the unit bath has a bathroom floor 63 that is higher than the conventional floor portion 62. Therefore, with the combustion device 40 attached to the wall 61, The dimension S from the appliance to the floor surface 63 will be smaller than before.
On the other hand, in order to guide the drain discharged from the combustion device 40 to the neutralizer 20 by natural fall, it is desirable to dispose it at a position lower than the combustion device 40.
That is, it becomes difficult to install a neutralizer having a vertical dimension larger than the dimension S as described in FIG.

Therefore, the inventors have developed a neutralizer 20 as shown in FIG. 3 that is compact and excellent in neutralization performance and can be installed even under the above-mentioned constraints.
FIG. 3 is a sectional view of the neutralizer 20.
In the figure, the neutralizer 20 has a container body 21. The container body 21 is a waterproof and strong container, and has a shape that is long in one direction, for example, in the lateral direction as shown in the figure. The container body 21 is formed of, for example, a molded product of synthetic resin such as polyethylene, and is formed in consideration of waterproofness, necessary heat resistance, mechanical durability, and the like depending on a place where the container body 21 is installed. Yes.
Moreover, the container body 21 accommodates the neutralizing agent 11 inside, and is provided with the volume which can exhibit sufficient neutralization capability by letting drain pass. For example, the container body 21 is about 15 cm long × 30 cm wide × 4 cm deep.
The neutralizing agent 11 is preferably calcium carbonate having a predetermined particle size, for example.

A drain introduction hole 22 for introducing drain discharged from the combustion device 40 of FIGS. 1 and 2 and one end side in the longitudinal direction of the container body 21 are provided on the other end side for discharging the drain. It has a drain discharge hole 23.
Preferably, the drain introduction hole 22 and the drain discharge hole 23 are formed in the middle of the height dimension H of the container body 21 or at a position below it. By carrying out like this, the neutralizing agent more than a drain water level can maintain neutralization performance in a fresher state.
A drain pipe 76 of the combustion device 40 in FIG. 1 is connected to the drain introduction hole 22.

  The drain introduction hole 22 is connected to the first preliminary space 12 partitioned in the container body 21. The first preliminary space 12 is formed by partitioning one end of the container body 21. One end portion of the upper portion of the container body 21 is formed as an overhanging portion 13 not included in the first preliminary space 12, and is integrated with a space filled with the neutralizing agent 11. By providing the overhang portion 13, the filling amount of the neutralizing agent 11 is increased.

  The first preliminary space 12 is divided by a neutralizing agent filling space 17 and a partition portion 12a. The partition part 12a is a partition, for example, and is provided with a communication hole 14. The communication hole 14 is composed of a small through hole or a narrow slit provided in the partition portion 12a, and the neutralizing agent 11 approaches the drain introduction hole 22 and solidifies there to effectively prevent the hole from being closed. Furthermore, the cross-sectional area of the communication part provided in the partition part 12a can be made larger than the cross-sectional area of the drain introduction hole 22, and the cross-sectional area of the passage through which drain flows can be maintained for a long time.

A drain discharge hole 23 provided on the other end side of the container body 21 is connected to the second preliminary space 18 partitioned in the container body 21. The second preliminary space 18 is formed by partitioning the other end portion of the container body 21.
The second preliminary space 18 is divided by a filling space 17 of the neutralizing agent 11 and a partition portion 18a. The partition portion 18a is a partition wall, for example, and is provided with a communication hole 16. The communication hole 16 is formed of a small through hole or a narrow slit provided in the partition portion 18a, and the neutralizing agent 11 approaches the drain discharge hole 23 and solidifies there to effectively prevent the hole from being closed. Furthermore, the cross-sectional area of the communication part provided in the partition part 18a can be made larger than the cross-sectional area of the drain discharge hole 23, and the cross-sectional area of the passage through which drain passes can be maintained for a long time.
In addition, an air hole 15 that plays a role of facilitating drainage to the drain discharge hole 23 is opened in the outer wall of the second preliminary space. The air hole 15 is preferably provided in the upper part of the container body 21 and is provided above the position of the drain water level Q described later.
Inside the container body 21, there are provided a plurality of spaces formed by a plurality of partition walls formed substantially vertically and having communication portions.

Specifically, a first partition wall 24 and a second partition wall 25 extending vertically in the vertical direction are formed in the container body 21 at a predetermined interval. A communication portion K1 and a communication portion K2 are formed below or below the partition walls 24 and 25, and this portion is not shielded.
A space 31 is formed between the first partition wall 24 and the left inner wall in the drawing. A space 32 is formed between the first partition wall 24 and the second partition wall 25. A space 33 is formed between the second partition wall 25 and the inner wall on the right side in the drawing.

In this case, the space 31 immediately adjacent to the drain introduction hole 22 is formed to be equal to or larger than the other spaces 32 and 33.
Further, the bottom of the space 31 immediately adjacent to the drain introduction hole 22 is an inclined surface 27 that gradually descends toward the space where the drain moves next (the right direction in FIG. 3).
Further, a space K3 is formed between the upper part or the upper part of the first partition wall 24 and the upper side of the container body 21, and the upper part or the upper part of the second partition wall 25 is a space K4 between the upper side of the container body 21. To form.
As a result, the first partition wall 24 and the second partition wall 25 form a plurality of spaces as baffle plates, and the drain is dammed and retained in the space 31, the space 32, and the space 33. Thus, the drain is allowed to pass through the communication portions K1 and K2 in order in the neutralization reaction.
Therefore, the space 31 is the space through which drain passes first, and the consumption of the neutralizing agent 11 is the largest. The space 32 is a space through which the drain passes after the space 31, and the consumption of the neutralizing agent 11 is large next to the space 31. The space 33 is a space through which drain passes following the space 32, and the consumption of the neutralizing agent 11 is the smallest.

In FIG. 3, what is indicated by a symbol Q is the drain water level. When the combustion apparatus 40 burns at the maximum capacity, for example, when 45 cc of drain is generated per minute, the water level Q should not be exceeded. The cross-sectional areas of the communication part K1 and the communication part K2 are determined.
Further, an insertion port 26 for a neutralizing agent is formed in the upper part of the container body 21. The neutralizing agent is, for example, granular calcium carbonate, and the opening diameter is determined so as to have a size suitable for the shape.

The neutralizer 20 of the present embodiment is configured as described above, and the container body 21 is provided with a plurality of spaces 31, 32, 33 by two partition walls 24, 25 having communication portions K1, K2. Yes.
For this reason, drain can fully obtain the path | route length for ensuring the contact time with a neutralizing agent by passing the communicating part of the said several partition.
That is, as shown in FIG. 3, the drain introduction hole 22 and the drain discharge hole 23 are formed in the middle of the height dimension H of the container body 21 or at a position below it. In this state, the drain that has entered from the drain introduction hole 22 is considered to move into the container body 21 as indicated by an arrow D1. It reacts with the neutralizing agent 11 in this process. Since this reaction is an exothermic reaction, the neutralized drain migrates above the water level.
Therefore, it is possible to reduce the volume filled with the lower neutralizing agent which is not easily involved in the immediate neutralization of the drain introduction hole 22 and to reduce the filling with a useless neutralizing agent. Further, the neutralization reaction can be efficiently promoted in the large space 31 by increasing the upper volume.

Moreover, since the communication portions K1 and K2 are formed below or below each partition wall 24 and 25, as shown by reference numerals D1 and D2 in FIG. Therefore, the neutralization reaction can be surely accelerated by passing through the position where the neutralizing agent is filled. Even if the height of the neutralizer 20 is reduced, a sufficient neutralization time can be obtained.
And since the two partition walls 24 and 25 are arranged side by side, when the neutralizer 40 is accommodated in the instrument which is the combustion apparatus 40, or installed outside the instrument, it is installed in a narrow unit bath room. In some cases, a neutralizer 20 that does not take a vertical dimension can be realized.

Moreover, since the insertion port 26 of the neutralizing agent is formed in the upper part of the container body 21, and space K3, K4 is formed in the upper part of each partition, when a neutralizing agent is put from the insertion port 26, each By using the spaces K3, K4 above the partition walls, the plurality of insertion ports 26 corresponding to the spaces 31, 32, 33, etc. between the partition walls need not be provided individually. Can be filled with neutralizing agent.
In addition, when the neutralizing agent in any of the spaces 31, 32, 33 defined by the respective partition walls 24, 25 is reduced, the neutralizing agent filled in the other spaces is replaced with the respective partition walls 24, 25. The space K3, K4 in the upper part of 25 can be moved and the filling state of the neutralizing agent can be changed appropriately.

Moreover, in this embodiment, since the air hole 15 is formed above the drain water level Q of the container body 21 as demonstrated in FIG. 3, there exists the following advantages.
When this neutralizer 20 is connected to a hot water supply device for a bath tub, as explained in FIG. 2, the balance type bath tub installed so far is removed and a so-called hole-in-one through-hole in the bathroom wall The bath may be directly attached to the fuel tank, that is, the combustion device 40. In that case, it is conceivable to attach the combustion device 40 to a position one step lower than the washing place called “drop-in installation”.
In such a case, if the drain outlet provided in the dropping section is blocked when the soap used in the washing place is accidentally dropped, the neutralizer 20 connected to the combustion device 40 is submerged. It is also possible to do. Even in such a case, if the air hole 15 is formed in the container body 21, the air enters the inside of the container body 21 from the air hole 15 only by removing the blockage of the drainage port. The water in the sump 20 will be drained naturally.

  Further, among the plurality of spaces 31, 32, 33 of the container body 21, the space 31 closest to the drain introduction hole 22 is formed to be the largest compared to the other spaces 32, 33. That is, among these spaces, in the space 31 close to the drain introduction hole 22, the drain flows first, so that the neutralizing agent is lost most. Therefore, since the volume of the space 31 is maximized, the largest amount of filler can be put.

FIG. 4 shows the state of the neutralizing agent 11 when the neutralizer 20 is used. The chain line 11a shows the upper surface of the filled neutralizing agent.
In FIG. 4A, the neutralizing agent 11 can be filled in the container body 21 as much as the above-described overhanging portion 13 is provided. The space 31 is filled with the largest amount of the neutralizing agent 11.
Since the drain that has entered the container body 21 from the drain introduction hole 22 is first neutralized in the space 31, the neutralizing agent filled in the space 31 is most consumed.

Here, since the location of the overhang portion 13 can be filled with the neutralizing agent, the neutralizer filled in the location of the overhang portion 13 is consumed as shown by the inclined surface 11b in FIG. . Further, as the neutralization proceeds, as shown in FIG. 4C, the neutralizing agent in the space K3 above the first partition wall 24 also flows into the first space 31, and the medium in the first space 31 becomes medium. Used for sum reaction.
Thus, by providing the overhang part 13 in relation to the first space 31, the neutralizing agent used in the first space 31 where the neutralization reaction is first performed can be efficiently replenished.
The first partition wall 24 and the second partition wall 25 have lengths (heights) halfway so that the spaces K3 and K4 are formed without reaching the upper end of the container body 21. . Thereby, even when neutralization reaction in the first space 31 progresses and consumption of the neutralizing agent progresses, the neutralizing agent 11 in the upper space K3 and the neutralizing agent in the upper portion of the second space 32 Can also be sent to the first space 32 and used for the neutralization reaction.

  As described above, according to the present embodiment, the compact neutralizer 20 capable of obtaining sufficient neutralization performance as a shape that does not take a dimension in the vertical direction, and a combustion equipped with such a neutralizer. An apparatus 40 can be provided.

The present invention is not limited to the embodiment described above.
The number of partition walls in the container body 21 may be increased. Further, the partition walls need not be provided vertically. For example, a part or all of the partition walls can be formed obliquely so that the upper portion of the space 31 or the like is wide. Moreover, if the volume of each space is comprised so that the neutralizing agent 11 may be consumed simultaneously, the neutralizing agent 11 can be filled effectively. The heights of the partition walls need not all be the same, and can be provided stepwise or partially lower toward the drain inlet side so that the neutralizing agent can be easily replenished in each space. The form of the partition can also be bent in multiple stages.
Furthermore, the partition provided in the container body 21 may have a gap that does not move beyond the space by holding the neutralizing agent in each space, not the wall that is completely closed.
The neutralizer 20 extends in the horizontal direction, but may have a shape such as a cylindrical shape or a prismatic shape that effectively utilizes space. The formation position of the container body 21 of the drain insertion hole 22 or the drain discharge hole 23 may be the central portion or the peripheral portion in the horizontal section of the neutralizer 20, or the upper surface or the lower surface in the vertical section. The number of communication portions between the spaces provided in the container body 21 is not limited to one for each partition wall, and a plurality or different numbers may be provided.
In addition, although the air hole 15 was provided in the upper part of the container body 21, it can also be provided in the cap which the neutralizing agent insertion port 26 does not illustrate. In order to prevent water from entering from the top, the air holes 15 are preferably provided on the side surfaces of the container body 21 and a cap (not shown).
In this embodiment, the drain was naturally dropped to the neutralizer 20, but if a liquid feeding means such as a pump is provided in the middle, the drain pipe 76 is extended and the performance is good in a compact shape at a suitable place. A neutralizer can be installed.
In the above-described combustion apparatus, the bath side is configured to exchange heat only with the primary heat exchanger, but a secondary heat exchanger may be provided also on the bath side. In addition to reheating hot water and bathing, a route such as heating may be provided.
The neutralizer 20 is not provided with a sensor for detecting the water level, but when the neutralizer 20 is built in the combustion apparatus, the container body 21 may be provided with a sensor for detecting the water level. .
Furthermore, a part of the configuration described in the embodiment may be combined with another configuration not described above.

The system diagram which shows embodiment of the combustion apparatus of this invention. Explanatory drawing which shows the example of installation of the combustion apparatus and neutralizer of FIG. The schematic sectional drawing which shows embodiment of the neutralizer used for the combustion apparatus of FIG. Explanatory drawing of the neutralizer used for the combustion apparatus of FIG. Explanatory drawing which shows an example of the conventional neutralizer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 20 ... Neutralizer, 21 ... Container body, 22 ... Drain introduction hole, 23 ... Drain discharge hole, 24 ... 1st partition, 25 ... 2nd partition, 26 ... Neutralizer insertion port, 31, 32, 33 ... Space, 44 ... Hot water supply pipe, 54 ... Primary heat exchanger, 56 ... Secondary heat exchanger, 57 ... Receiver Part (receiving tray), 70 ... neutralization device, 76 ... drain piping

Claims (6)

A combustion apparatus is provided outdoors using a wall hole formed in the outer wall of the building from which the balance-type bath tub is removed, and a drainage body from which the drainage from the combustion apparatus is introduced into the bathroom and the drain is introduced by natural fall Because
And the drain inlet for introduction of drain is provided in the container body,
A drain discharge hole provided in the container body for discharging the drain;
Inside the container body is provided with a partition wall that partitions a plurality of spaces filled with a neutralizing agent, and above the partition wall, a space having a size that allows the neutralizing agent to move is formed,
further,
The container body is formed with an air hole opened in the bathroom, and the air hole is set to be higher than a drain water level position of the container body. Japanese machine.   The neutralizer according to claim 1, wherein an insertion port for a neutralizing agent is formed above the drain water level of the container body.   The neutralization agent filling space located in the immediate vicinity of the drain introduction hole among the plurality of spaces filled with the neutralizing agent is formed to be equal to or larger than other spaces. Item 3. The neutralizer according to either item 1 or 2.   Of the plurality of spaces filled with the neutralizing agent, the bottom of the filling space of the neutralizing agent located in the immediate vicinity of the drain introduction hole is an inclined surface that descends toward the space where the drain moves next. The neutralizer according to any one of claims 1 to 3, wherein   The container body is provided with a drain introduction spare space connected to the drain introduction hole, and between the spare space and the neutralizer filling space filled with the neutralizer, 5. A partition wall is formed, and a communication hole smaller than the outer shape of the neutralizing agent is provided between the partition wall and the space for filling the neutralizing agent. The neutralizer in any one. Combustion equipped with a container that introduces the drain by natural fall by providing a combustion appliance outdoors using a wall hole formed in the outer wall of the building from which the balance-type bath tank is removed, leading the drain from the combustion appliance into the bathroom An apparatus comprising a pipe for supplying a fluid heated by the combustion section ;
A primary heat exchanger heated by combustion of the combustion means;
A latent heat recovery heat exchanger which is a secondary heat exchanger for guiding the fluid before entering the primary heat exchanger and recovering the latent heat of the exhaust gas generated by the combustion of the combustion means;
A neutralizer that guides the drain that is generated when the latent heat is recovered by the latent heat recovery heat exchanger, and neutralizes the drain;
The neutralizer
A drain introduction hole for introducing drain provided in the container body;
A drain discharge hole provided in the container body for discharging the drain;
Inside the container body is provided with a partition partitioning a plurality of spaces filled with a neutralizing agent,
Above the partition, a space of a size capable of moving the neutralizing agent is formed ,
further,
The container body is formed with an air hole opened in the bathroom, and the air hole is set to be higher than a drain water level position of the container body. apparatus.

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