JP2007170692A - Burning appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily connect pipes, to ensure drainage gradient, and to install a neutralizing container at a position to easily perform maintenance of a neutralizing agent, by determining a discharged water pipe connecting position at an appliance main body front cover side, and determining a connection height to be lower than a bathtub upper edge face, and higher than water supply, hot water supply and bath going/returning pipe connecting position. <P>SOLUTION: This burning appliance comprises a wall penetration boiler, a drain pipe connecting the wall penetration boiler and the neutralizing container, and the neutralizing container connected with the wall penetration boiler by the drain pipe, a connecting portion of the drain pipe is higher than other pipe connecting portions of the wall penetration boiler, and a coupling of the drain pipe connecting portion mounted on a front face of the wall penetration boiler and disposed on a wall penetration boiler main body is projected from the front face of the wall penetration boiler in the shape of L, and is rotatable. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drain water pipe connection of a latent heat recovery type combustion device.

  The installation form of a domestic water heater is generally a type installed on the outdoor wall surface of a building or a type installed on the ground. Further, in recent years, a hot water heater using a thermal-efficient latent heat recovery type combustion device is required from the viewpoint of global warming prevention and energy saving, and moreover, those with a reheating function are often used for convenience. Such a wall-mounted type latent heat recovery type water heater with a reheating function is generally said to be a latent heat recovery type water heater with a reheating function.

  FIG. 18 shows an installation example of this conventional latent heat recovery type hot water heater 35 with a reheating function (hereinafter referred to as “hot water heater”), and shows a perspective view when viewed from the short side of the bathtub. Various pipes are connected to the water heater 35. These pipes include a water supply pipe 21 for supplying water to the water heater, a hot water supply pipe 22 for supplying hot water heated by the water heater, a gas pipe 23 for supplying fuel to the water heater, and water heating. It consists of a drain water discharge pipe 27 for discharging the generated acidic drain water to the outside of the water heater through the neutralization vessel, a bath outlet pipe 25 for circulatingly heating the bath water, and a bath return pipe 24.

  The bath outlet pipe 25 and the bath return pipe 24 are connected to a circulation fitting 36 attached to a bathtub 29. The drain water discharge pipe 27 is connected in a non-contact manner to a drain outlet 37 for discharging drain water to the sewer pipe. An apron 31 for concealing the piping is attached to the bathtub 29. The apron 31 is generally detachable because it is removed during maintenance of piping and the like.

FIG. 19 is a front view of the conventional water heater body. Below the water heater 35, a water supply pipe connection 2 connected to the water supply pipe 21, a hot water supply pipe connection 17 connected to the hot water supply pipe 22, and a gas pipe connection connected to the gas pipe 23. A drain outlet connected to the drain water discharge pipe 27; a bath return pipe connection part 19 connected to the bath return pipe 24; a bath return pipe connection part 20 connected to the bath return pipe 24; A pipe connection part 39 is provided.
The main body front cover 26 is detachable, and is removed at the time of equipment installation or maintenance. Inside the water heater 35, a neutralization container filled with a neutralizing agent for neutralizing acidic drain water generated in the latent heat recovery unit is incorporated.

  On the other hand, a balance-type bath pot (hereinafter referred to as “BF pot”), which is a type of the above-mentioned water heater and is mainly installed in an apartment building and beside the bathtub, requires installation space in the bathroom. The bathtub space is narrowed accordingly. For this reason, by replacing all the functions of the BF kettle to the supply / exhaust tube installation part of the BF kettle opened on the wall surface of the BF kettle as a replacement for this BF kettle, Bathroom remodeling products that can make the bathtub large are being developed. Such a bath tub is said to be a wall-penetrating water heater with a chasing function (hereinafter referred to as a “wall-through tub”).

  FIG. 20 is a perspective view of the conventional installation example when the wall penetration pot is installed in the bathroom, and is seen from the short side of the bathtub. Various pipes are connected to the wall penetration pot main body 1 from a pipe connection portion provided below the wall penetration hook main body 1. These pipes include a water supply pipe 21 for supplying water to the wall penetration kettle, a hot water supply pipe 22 for supplying hot water heated by the wall penetration kettle into the bathroom, a gas pipe 23 for supplying fuel to the wall penetration kettle, It consists of a bath outlet pipe 25 and a bath return pipe 24 for circulatingly heating the bath water.

  The bath outlet pipe 25 and the bath return pipe 24 are connected to a circulation fitting 36 attached to a bathtub 29. The hot water supply pipe 22 is connected to a faucet 38 installed on the upper edge surface of the bathtub 29. A removable apron 31 is attached to the bathtub 29.

  As a feature of the wall-through kettle, all pipes for water supply, hot water supply, gas, etc. are completed in the bathroom, and all maintenance work is also performed from inside the bathroom. Combustion air is sucked into the instrument body from the outside using the intake port 33, and combustion exhaust gas is discharged to the outside through the exhaust port 32.

  A front view of the wall penetration pot main body is shown in FIG. Below the wall penetration pot main body 1, a water supply pipe connection part 2 connected to the water supply pipe 21, a hot water supply pipe connection part 17 connected to the hot water supply pipe 22, and a gas connected to the gas pipe 23. It has a pipe connection 18, a bath return pipe connection 19 connected to the bath return pipe 25, and a bath return pipe connection 20 connected to the bath return pipe 24. The main body front cover 26 is detachable, and is removed at the time of equipment installation or maintenance.

  By the way, in the above-described latent heat recovery type combustion equipment such as a water heater and a wall-through kettle, any strongly acidic drain containing nitrous acid gas component or the like by condensation during heat exchange for latent heat recovery. Water is generated. If this drain water is discharged as it is, the metal part may be corroded or the concrete may be deteriorated. Therefore, it is necessary to perform a neutralization treatment using a neutralizing agent before discharging.

  As this neutralizing agent, generally inexpensive calcium carbonate is used. The shape of calcium carbonate is granular, and has the property of being aged over time when used for a long time. Since the powder will flow out of the neutralization vessel, it must be periodically replenished with calcium carbonate.

  In a water heater, the neutralization container is generally built in a main body cover. When performing maintenance of the neutralizer, it is difficult to observe the decrease in calcium carbonate from the outside of the neutralization container, so remove the front cover and check the remaining amount of calcium carbonate in the built-in neutralization container. The method of replenishment is taken.

  On the other hand, in the wall penetration pot, it is difficult to incorporate the neutralization container in the main body of the wall penetration pot due to the uniqueness of the installation form. Therefore, the wall penetration pot main body and the neutralization container are installed separately. When performing maintenance on the neutralizing agent in the neutralization vessel, remove the bathtub apron, remove the faucet pipe installed on the upper edge of the bathtub, and return to the bath from the circulation fitting attached to the bathtub. Remove the pipe, and then pull out the bathtub to the bathroom. Next, the neutralization container is pulled out, and calcium carbonate is replenished into the neutralization container.

  In this way, the remaining amount of calcium carbonate and replenishment work, including the case of a water heater, are generally troublesome, and especially in the case of a wall-through kettle, it is difficult to move the piping and bathtub. It has become work.

  Therefore, with respect to the water heater, a method for predicting the consumption of the neutralizing agent with the integrated value of the combustion heat amount and the combustion time (Patent Document 1), and the reduction of the neutralizing agent from the outside can be confirmed, and disposable replacement is possible. A neutralized container (Patent Document 2) has been considered.

Moreover, regarding the wall penetration pot, the thing (patent document 3) which improved the workability | operativity of the neutralizing agent by installing the neutralization container in the bathtub wall surface adjacent to a bathtub is considered.
JP 2000-337631 A JP 2001-259658 A Japanese Patent Application No. 2005-271912

  In the method shown in Patent Document 1, the replenishment time can be managed by predicting the lifetime of the neutralizing agent, but the troublesomeness of the replenishment work itself cannot be solved. In particular, since the wall-through hook requires the movement of the bathtub, it is a problem that the difficulty of the replenishment work itself cannot be solved.

  The same applies to the method disclosed in Patent Document 2, and even a disposable neutralization container cannot solve the trouble of managing the remaining condition or replacing work depending on the size, shape, and installation location. In particular, since the installation space is limited in the wall-through hook, there is a problem in that it is difficult to install in the main body because the size of the main body of the combustion device containing the neutralization container is limited.

  In the method shown in Patent Document 3, if the neutralization container is to be installed at a position where the neutralizing agent is easily maintained, the distance between the wall penetration pot main body and the neutralization container may be increased, and in this case, the drain pipe is long. Therefore, it may be difficult to ensure a drain water drain gradient. In addition, as shown in FIG. 21, when a connection portion with a drain pipe is provided below the wall through-hole main body, depending on the position of the neutralization container, it may be necessary to intersect with the other pipe. It can be difficult.

  The present invention has been made in order to solve the above-described problems. The neutralization is achieved by ensuring the drainage gradient of the drain pipe and allowing the neutralization container to be installed at a position where the neutralizing agent can be easily maintained. The purpose is to improve the workability of agent maintenance. It is another object of the present invention to improve piping workability by facilitating connection of a drain pipe regardless of whether the neutralization container is installed on the left or right side of the wall penetration pot main body.

(1) The present invention includes a wall penetrating pot, a drain pipe connecting the wall penetrating pot and the neutralization container, and a neutralization container connected to the wall penetrating pot by the drain pipe, and the drain pipe Is a combustion device in which the connecting portion is higher than the other piping connecting portion provided in the wall penetration hook.
(2) The present invention is the combustion device according to item (1), wherein the drain pipe connection portion is attached to the front surface of the wall penetration hook.
(3) In the present invention, in the item (1) or the item (2), the joint of the drain pipe connecting portion provided in the wall penetration hook body protrudes in an L shape from the front surface of the wall penetration hook and is rotatable. It is said to be a combustion device.
(4) The present invention provides the method according to any one of Items (1) to (3), wherein the neutralization container is installed on the bathtub wall surface adjacent to the bathtub, and the drain water from the wall penetrating pot is used for the bathroom floor, the bathtub, and the bathroom. It is a combustion device that drains into a space surrounded by walls.
(5) The present invention is a bathroom unit including the combustion device described in any one of Items (1) to (4).

  According to the present invention, in the wall penetrating hook, the drain pipe connecting portion of the drain pipe is arranged on the front cover of the main body, thereby ensuring a drainage gradient to the neutralizer. Further, by making the drain pipe connecting portion rotatable, the arrangement of the neutralizer can be set at either the left or right position of the wall penetrating hook body, and the drain pipe work is facilitated. By these, the restriction | limiting of the installation of a neutralizer is eliminated, and a neutralizer can be installed in the position which is easy to maintain a neutralizer.

  Bathrooms in which the combustion equipment according to the present invention can be installed include not only unit-type bathrooms but also conventional construction bathrooms in which floors and walls are constructed of tiles and the like and bathtubs are installed. In particular, if the bathroom that used the BF kettle in the conventional construction method is installed when remodeling the wall penetration kettle, the BF kettle open / close tube installation part opened on the wall of the bathroom can be used and installed. It is effective because the bathtub can be enlarged by making the space compact.

  The wall penetration pot used in the present invention is a kind of latent heat recovery type water heater that discharges drain water, as described in the prior art. FIG. 2 is a front view of an example of the wall penetration pot main body 1 used in the present invention, and FIG. 3 is a side view thereof. FIG. 4 is an installation example diagram of the bathroom in which the wall penetration pot main body 1 is installed in a bathroom of a conventional construction method, and is a perspective view when viewed from the bathroom washing area side (longitudinal surface of the bathtub). Moreover, FIG. 5 is an installation example diagram of a bathroom unit in which the wall penetration pot main body 1 used in the present invention is installed in the bathroom, and shows a perspective view seen from the short side of the bathtub (side view of FIG. 4).

  Examples of pipes connected to the wall penetration kettle main body 1 include a water supply pipe 21 for supplying water to the wall penetration kettle main body 1, and a hot water supply pipe 22 for supplying hot water heated by the wall penetration kettle main body 1 into the bathroom. , A gas pipe 23 for supplying fuel to the wall penetration pot main body 1, a bath outlet pipe 25 for circulatingly heating the bathtub water, a bath return pipe 24, and a drain pipe 6.

  The drain pipe 6 is connected to the neutralization container 8 from a drain pipe connecting portion 7 provided on the front surface of the wall penetration pot main body 1. As shown in the examples of FIGS. 4 and 5, the neutralization container 8 for neutralizing the drain water is provided outside, and the wall penetrating pot main body 1 and the external neutralization container 8 are connected by the drain pipe 6. The strongly acidic drain water condensed during the latent heat recovery is guided to the neutralization vessel 8.

  The size of the neutralization vessel 8 is set so that the maintenance frequency of the neutralizing agent is 10 years or more, and in order to ensure a sufficient capacity, the thickness is 50 mm or more, the height is 200 mm or more, and the width is 250 mm or more. Is desirable. Further, it is desirable that the drain pipe 7 is connected to the neutralization vessel 8 in the vicinity of the upper end of the neutralization vessel 8 in order to bring more neutralizer and drain water into contact.

Since the opening position of the supply / exhaust port of the BF kettle is about 300 mm from the bathroom floor to the lower surface of the opening, the wall penetration kettle often installed at the opening position of the BF kettle by remodeling is shown in the comparative example of FIG. Thus, when piping connection is performed below, the connection position is located about 250 mm from the bathroom floor. At this time, if the drain pipe is connected at the pipe connection position below the wall penetration main body 1, the upper end of the neutralization vessel 8 is at least 200 mm or more from the bathroom floor as described in (0028). Therefore, the gradient with respect to the upper end of the neutralization vessel 8 becomes small. For this reason, the connection position between the wall penetration hook body 1 and the drain pipe 7 is sufficient if at least the drain pipe 7 leading from the wall penetration hook body 1 to the neutralization container 8 can maintain a downward slope. Therefore, a position as high as possible of the wall penetration pot main body 1 is desirable. In order to increase the downward slope of the drain pipe 7 to the neutralization vessel 8 as compared with the case where the drain pipe connecting portion 7 is provided below the wall penetration main body 1 as in the comparative example of FIG. If the pipe connection portion 7 is at a higher position than other pipe connection portions provided in the wall penetration hook, the drain pipe connection portion 7 may be provided on any of the side, front, upper, and lower sides of the wall penetration hook main body 1. In particular, it is desirable to provide the neutralization container 8 on the front surface of the wall penetration pot main body 1 in that it can be easily handled regardless of whether the neutralization container 8 is located on the left or right of the wall penetration pot main body 1.
Thereby, as shown in FIG. 4, the gradient of the drain piping from the wall penetration pot main body 1 to the neutralization container 8 can be ensured, and the drain water can be treated smoothly. Moreover, the water connection, hot water supply, gas, bathing, and bath return piping of the wall penetration pot main body 1 can be easily connected by piping without cross piping.

When the connection position between the wall penetration hook main body 1 and the drain pipe 6 is provided on the front surface of the wall penetration hook main body 1, the joint of the drain pipe 6 with the wall penetration hook main body 1 is further connected from the front surface of the wall penetration hook main body 1. It is desirable to project into an L shape and be rotatable. Thereby, in any case where the neutralization container 8 is arranged on the right side of the wall penetration pot main body 1 (FIG. 4) and the case where it is arranged on the left side (FIG. 12), the installation can be easily performed.
The joint between the drain pipe 6 and the wall-through hook body 1 is L-shaped, one of which is connected to the drain pipe 6, the other is connected to the wall-through hook body 1, and the connection portion with the wall-through hook body 1 is provided. Any structure can be used as long as it is rotatable, does not leak drain water, and is difficult to remove the joint connecting portion from the wall penetration hook body 1.
As such a joint, for example, a quick fastener system as shown in FIGS. 6 and 7, a screw fastening system as shown in FIGS. 8 and 9, a clip pin system as shown in FIGS. 10 and 11, etc. are used. it can. The quick fastener method is easy to attach and detach, and has the advantage of saving labor of piping work. The screw fastening method and the clip pin method have the advantage that the structure is simple and inexpensive. These can be used properly according to their merits.

  When the neutralization container 8 is installed on the bathroom wall 28 facing the longitudinal surface of the bathtub 29 (FIGS. 5 and 12), piping of a water tap (not shown) installed on the upper edge surface of the apron 31 and the bathtub 29 And the neutralization container 8 is exposed by pulling out the bathtub 29, and the neutralizing agent can be maintained. For this reason, the trouble of removing all the pipes which has been conventionally performed is omitted, and the workability of maintenance of the neutralizing agent is improved.

  In addition, when the neutralization container 8 is installed in the bathroom wall 28 that is orthogonal to the bathroom wall 28 in which the wall penetrating pot main body 1 is installed (FIG. 14), the neutralizer can be maintained simply by removing the apron 31. Can be made more convenient.

  The bath outlet pipe 25 and the bath return pipe 24 are connected to a circulation fitting (not shown) attached to the bathtub 29. The hot water supply pipe 22 is connected to a faucet (not shown) installed on the upper edge surface of the bathtub 29. It is preferable to attach the detachable apron 31 to the bathtub 29. This improves the workability of maintenance such as replacement of the neutralizing agent.

  5, FIG. 12 and FIG. 15 are perspective views when the bathroom is viewed from the short side of the bathtub. A water supply pipe 21, a hot water supply pipe 22, a gas pipe 23, a bath outlet pipe 25, and a bath return pipe 24 are connected (not shown) from the lower side of the wall penetrating pot main body 1, and the front surface of the wall penetrating pot main body 1 is connected. To the drain pipe 6. The main body front cover 26 and the apron 31 are preferably removable. Thereby, it can remove at the time of instrument installation, a maintenance, etc., and workability | operativity improves.

  Pipes for water supply, hot water supply, gas, etc. are all completed in the bathroom, and all maintenance work is performed from the bathroom. Combustion air is sucked into the instrument body from the air inlet 33 from the outside, and combustion exhaust gas is discharged outdoors through the exhaust port 32.

  The drain water generated by condensation during the recovery of the latent heat of the combustion exhaust gas in the wall penetration kettle body 1 is strongly acidic by absorbing the nitrous acid gas component etc. of the combustion exhaust gas, but is provided in the wall penetration kettle. The collected water is collected in the drain receiver and flows down to the neutralization vessel 8 through the drain pipe 6, neutralized there, and then discharged through the drain water discharge pipe 27. For this reason, it is preferable that the neutralization container 8 is disposed below the wall penetration pot main body 1 and the end of the neutralized drain water discharge pipe 27 is opened downward. This facilitates the introduction of drain water into the neutralization vessel 8 and the drain water discharge through the drain water discharge pipe 27.

  One side of the drain water discharge pipe 27 is connected to the neutralization vessel 8, and the other side is opened toward the bathroom floor 30. Thereby, the drain water neutralized with the neutralizing agent is discharged to the bathroom floor surface 30.

  Further, the end of the drain water discharge pipe 27 that is not connected to the neutralization container 8 is opened to a space surrounded by the bathroom floor 30, the bathtub 29, and the bathroom wall 28. Thereby, the neutralized drain water can be discharged | emitted by the same drainage path as the hot water containing the soap used for hot-water drainage or bathing, and it is not necessary to provide the piping for neutralized drain water. Also, even if the neutralizing agent in the neutralization vessel 8 has deteriorated over time and the drain water is not sufficiently neutralized, it is diluted with hot water drainage and neutralized with soapy water, so it is discharged as it is. Can be prevented.

The bathroom floor surface 30 of the present invention is used to place a bathtub on the upper surface or serve as a washing place for the user. The material of the bathroom floor surface 30 is not particularly limited, and conventional construction methods such as tile, concrete, and wood are used. Can be used. In addition, a waterproof pan for a bathroom unit may be used, and in that case, the material is not limited, fiber reinforced plastic using SMC, BMC, etc., metal such as iron, aluminum, stainless steel, or These composite molded products can be used.
Also, the structure of the bathroom floor 30 is not particularly limited, but the hot water drainage, the soap water used for bathing, and the neutralized drain water discharged from the drain water discharge pipe 27 are gathered at the same place and mixed. It is preferable to have such an inclined structure and the same outlet. Thereby, dilution and neutralization of the drain water neutralized with hot water drainage and soap water are performed reliably.

  When the bathtub 29 used in the present invention is placed on the upper surface of the bathroom floor surface 30, the wall penetrating pot main body 1 is provided between the outside of the bathtub 29 (but not including the upper edge surface portion) and the bathroom wall 28. It is desirable that there is a gap that does not allow contact between the drain pipe 7 installed on the front surface of each of the pipes and the pipes connected to the lower part of the wall penetration main body 1. Thereby, the main body front cover 26, the neutralization container 8, and various pipes (water supply pipe 21, hot water supply pipe 22, gas pipe 23, bath outlet pipe 25, bath return pipe 24, drain pipe 6) are put in the space. Can be stored. The material of the bathtub 29 is not particularly limited, and a fiber reinforced plastic using SMC, BMC or the like, a metal such as iron, aluminum, or stainless steel, or a composite molded product thereof can be used.

Further, the capacity of the neutralization vessel 8 is not particularly limited, but is preferably set to a volume capable of enclosing about 2 kg of granular calcium carbonate inside. Thereby, the lifetime of a neutralizing agent can be made long enough and the frequency of the maintenance for the inspection and replenishment of a neutralizing agent can be reduced.
Moreover, since the material of the neutralization container 8 must be excellent in corrosion resistance, a metal or plastic with strong corrosion resistance is used. In consideration of workability and assemblability, plastic is preferably used. Moreover, the lid | cover for putting calcium carbonate in a container is provided in the upper part of the neutralization container. The lid is preferably openable and closable from the viewpoint of maintenance workability.

  Wall penetrating hook body 1, its front cover 26, various pipes connected to the wall penetrating pot body 1 (water supply pipe 21, hot water supply pipe 22, gas pipe 23, bath outlet pipe 25, bath return pipe 24, drain pipe 6) The attachment position of the neutralization container 8 and the drain water discharge pipe 27 is preferably attached to the bathroom wall 28 in the gap between the bathtub 29 and the bathroom wall 28. Thereby, when confirming and replenishing the neutralizing agent in the neutralization container 8, the pipe of the water tap installed on the upper edge surface of the apron 31 and the bathtub 29 is removed, and the neutralization container is simply pulled out. 8 is exposed. For this reason, according to this invention, the operation | work which removes all the various piping required conventionally, opens the main body front cover 26, and pulls out the neutralization container 8 becomes unnecessary. For this reason, the confirmation of the presence or absence of deterioration of the neutralizing agent and the maintenance such as replacement and replenishment of the neutralizing agent when necessary are much easier than before.

  As shown in FIGS. 14 and 15, when the neutralization container 8 is installed on the bathroom wall 28 that is orthogonal to the bathroom wall on which the wall penetration pot main body 1 is installed, calcium carbonate in the neutralization container 8 is used. The remaining amount can be confirmed and replenished by simply removing the apron 31, and the workability of maintenance of the neutralizing agent can be improved.

  FIG. 2 is a front view of the wall penetration pot main body 1 used in Embodiment 1 of the present invention, and FIG. 3 is a side view thereof. The pipe connection part below the wall penetration pot main body 1 is the water supply pipe connection part 2, the hot water supply pipe connection part 17, the gas pipe connection part 18, the bath outlet pipe connection part 19, and the bath return pipe connection part 20 from the left side. Further, a drain pipe connecting portion 7 is provided on the front surface of the wall penetration pot main body 1. Thereby, the drain piping connection part 7 can be provided in a high position with respect to the neutralization container 8, and the gradient for making drain water flow naturally can be ensured.

  FIG. 6 is a front view of a quick fastener type joint used in the drain pipe connection portion of Embodiment 1 of the present invention, and FIG. 7 is a sectional view thereof. A joint used for the drain pipe connecting portion 7 protrudes in an L shape from the front surface of the wall penetration hook body 1 and is rotatable.

  FIG. 4 is an installation example diagram of a bathroom in which the wall penetration pot main body 1 according to the first embodiment of the present invention is installed in a bathroom of a conventional construction method, and is a perspective view when viewed from the bathroom washing area side (longitudinal surface of the bathtub). It is. Various pipes are connected to the wall penetration pot main body 1. These pipes include a water supply pipe 21 for supplying water to the wall penetration kettle, a hot water supply pipe 22 for supplying hot water heated by the wall penetration kettle into the bathroom, a gas pipe 23 for supplying fuel to the wall penetration kettle, It consists of a bath outlet pipe 25 and a bath return pipe 24 for circulatingly heating the bath water, and a drain pipe 6 connected from the front surface of the wall penetration pot.

  The bath outlet pipe 25 and the bath return pipe 24 are connected to a circulation fitting (not shown) attached to the bathtub 29. The hot water supply pipe 22 is connected to a faucet (not shown) installed on the upper edge surface of the bathtub 29. A removable apron 31 is attached to the bathtub 29.

  Pipes for water supply, hot water supply, gas, etc. are all completed in the bathroom, and all maintenance work is performed from the bathroom. Combustion air is sucked into the instrument body from the air inlet 33 from the outside, and combustion exhaust gas is discharged outdoors through the exhaust port 32.

  Moreover, FIG. 5 is an installation example diagram of a bathroom in which the wall penetration pot main body 1 which is Embodiment 1 of the present invention is installed in a bathroom of a conventional construction method, and shows a perspective view seen from the short side of the bathtub (FIG. 4). Side view). A water supply pipe 21, a hot water supply pipe 22, a gas pipe 23, a bath outlet pipe 25, and a bath return pipe 24 are provided below the wall penetration pot main body 1. Further, a drain pipe 6 is provided on the front surface of the wall penetration pot main body 1. The main body front cover 26 and the apron 31 are detachable. Thereby, since it can remove at the time of instrument installation, a maintenance, etc., workability | operativity improves.

  Strongly acidic drain water generated by condensation during the recovery of latent heat of combustion exhaust gas in the wall penetration kettle body 1 is collected in a drain receiver provided in the wall penetration kettle, and flows down to the neutralization vessel 8. Then, after neutralizing, it is discharged through the drain water discharge pipe 27. The neutralization container 8 is provided below the wall penetration pot main body 1, and the end of the drain water discharge pipe 27 is opened downward. Thereby, introduction of drain water into the neutralization container 8 and discharge of the neutralized drain water through the drain water discharge pipe 27 are easy.

  Further, the end of the drain water discharge pipe 27 from the neutralization container 8 is opened to a space surrounded by the bathroom floor 30, the bathtub 29 and the bathroom wall 28. As a result, the neutralized drain water can be discharged through the same drainage path as the hot water containing soap used for hot water drainage and bathing, and there is no need to provide a pipe for the neutralized drain water. Also, even if the neutralizing agent in the neutralization vessel 8 has deteriorated over time and the drain water is not sufficiently neutralized, it is diluted with hot water drainage and neutralized with soapy water, so it is discharged as it is. Can be prevented.

  The bathroom floor 30 is constructed using tiles. In addition, the slant structure is such that the hot water drainage, the soap water used for bathing, and the neutralized drain water discharged from the drain water discharge pipe 27 are collected and mixed in the same place, and the discharge port is one place. Yes. Thereby, dilution and neutralization of the drain water neutralized with hot water drainage and soap water are performed reliably.

  When the bathtub 29 is placed on the upper surface of the bathroom floor 30, there is a gap of about 60 mm between the outside of the bathtub 29 and the bathroom wall 28 except for the upper edge of the bathtub, It has a reverse trapezoidal shape. Thereby, the main body front cover 26, the neutralization container 8, and various pipes (water supply pipe 21, hot water supply pipe 22, gas pipe 23, bath outlet pipe 25, bath return pipe 24, drain pipe 6) are stored in the space. it can. The material is a fiber reinforced plastic molded product using SMC.

  The neutralization container 8 has a thickness of 50 mm, a height of 200 mm, and a width of 250 mm. Thereby, it can be installed in the gap between the bathroom floor 30, the bathtub 29 and the bathroom wall 28. Moreover, since the neutralization container 8 does not need to be built in the wall penetration pot main body 1, as a result, it is not necessary to enlarge the size of the wall penetration pot main body 1, and the advantage of space saving can be utilized. .

In the neutralization container 8, about 2 kg of granular calcium carbonate is sealed inside so that the life of the neutralizing agent can be made sufficiently long. Thereby, the frequency of maintenance can be reduced.
Moreover, the material of the neutralization container 8 is made of plastic, and an openable / closable lid for placing calcium carbonate into the container is provided on the upper part of the neutralization container. This improves the workability of maintenance.

  Wall penetrating hook body 1, its front cover 26, various pipes connected to the wall penetrating pot body 1 (water supply pipe 21, hot water supply pipe 22, gas pipe 23, bath outlet pipe 25, bath return pipe 24, drain pipe 6) The neutralization container 8 and the drain water discharge pipe 27 are attached to the bathroom wall 28. Thereby, when confirming and replenishing the neutralizing agent in the neutralization container 8, the pipe of the water tap installed on the upper edge surface of the apron 31 and the bathtub 29 is removed, and the neutralization container is simply pulled out. 8 is exposed. For this reason, it is not necessary to remove all the pipes, open the front cover 26 and pull out the neutralization container 8 as in the past, check whether the neutralizing agent has deteriorated, and replace and replenish the neutralizing agent if necessary. It is much easier to perform maintenance such as performing the maintenance.

Hereinafter, the operation of the combustion apparatus according to an embodiment of the present invention will be described with reference to FIG.
The wall penetrating hook body 1 is supplied with water from a water supply pipe connection portion 2, and the water supply pipe connection portion 2 is connected to a water amount sensor 3 for detecting the amount of supplied water. The water quantity sensor 3 is connected to an inlet of a secondary heat exchanger 10 which is a latent heat recovery unit, and an outlet of the secondary heat exchanger 10 is an inlet of a hot water supply primary heat exchanger 11 that recovers sensible heat of combustion exhaust gas. Connected to the pipe. The outlet of the hot water supply primary heat exchanger 11 is branched in two directions, one is connected to a hot water supply pipe connection part 17 for supplying hot water into the bathroom, and the other is connected to a hot water solenoid valve 14 for filling hot water in the bathtub. Connected. The outlet of the pouring electromagnetic valve 14 is branched in two directions, one is connected to the bath heat exchanger 15 for boiling the bath water, and the other is connected to the bath outlet pipe 25. The outlet of the bath heat exchanger 15 is connected to a circulation pump 16 for circulating bath water, and the circulation pump 16 is connected to a bath return pipe connection 20. In the hot water supply combustion, the fuel gas supplied from the gas pipe connection 18 is supplied to the hot water supply combustion unit 12 via the hot water supply electromagnetic valve 13 and burned to generate high-temperature combustion gas. The combustion gas passes through the hot water supply primary heat exchanger 11, passes through the secondary heat exchanger 10, and is exhausted from the hot water supply exhaust port 4 to the outside of the appliance. At this time, since the temperature of the combustion gas passing through the secondary heat exchanger 10 is as low as about 200 ° C., dew condensation water is generated in the secondary heat exchanger 10. Since the condensed water is strongly acidic at about PH2, it must be recovered, neutralized and discharged. Condensed water generated in the secondary heat exchanger 10 is dropped and collected by the receiving plate 5 for collecting it, which becomes drain water, flows into the drain pipe 6 and passes through the drain pipe connecting portion 7. Into the inlet of the neutralization vessel 8 filled with calcium carbonate 9. The drain water neutralized in the neutralization vessel 8 becomes about PH7 from the outlet of the neutralization vessel 8 and is discharged.

  A combustion apparatus according to a second embodiment of the present invention is shown in FIGS. 12 and 13. FIG. 12 is an installation example diagram of a bathroom in which a wall penetrating pot main body 1 which is Embodiment 2 of the present invention is installed in a bathroom of a conventional construction method, and is a perspective view when viewed from the bathroom washing area side (tub longitudinal surface). It is. The neutralization container 8 was installed on the left side of the wall penetration pot main body 1, and the drain pipe connection portion 7 attached to the front surface of the wall penetration pot main body 1 was tilted to the left side to connect the drain pipe 6. Other configurations are the same as those of the first embodiment. FIG. 13 is an installation example of a bathroom in which a wall penetration pot main body 1 according to a second embodiment of the present invention is installed in a bathroom of a conventional construction method, and shows a perspective view seen from the short side of a bathtub (the side of FIG. 12). Figure).

  In the case of this embodiment, the arrangement of the neutralization container 8 with respect to the wall penetration pot main body 1 is opposite to that of the first embodiment, but the joint used for the drain pipe connection portion 7 is connected to the wall penetration pot main body. By projecting in an L-shape from the front surface of 1 and being rotatably mounted, no cross piping is required even when the neutralization container 8 is installed on either the left or right side of the wall penetration pot main body 1, and drainage can be easily performed. It becomes possible to connect the drain pipe 6 by changing the direction of the pipe connecting portion 7, and the drain pipe work becomes easy. Moreover, the restrictions of installation of the neutralization container 8 are reduced. Furthermore, this makes it possible to install the neutralization container 8 at a position where the neutralizer can be easily maintained.

  Embodiment 3 of the combustion device according to the present invention is shown in FIGS. 14 and 15. FIG. 14 is an installation example in the case where the neutralization container 8 is installed on the bathroom wall 28 that is orthogonal to the bathroom wall in which the wall penetrating pot main body 1 is installed, as viewed from the bathroom washing room side (longitudinal surface of the bathtub). FIG. FIG. 15 is an installation example of a bathroom in which the wall penetration pot main body 1 is installed in a bathroom of a conventional construction method, and shows a perspective view seen from the short side of the bathtub (side view of FIG. 14). Other configurations are the same as those in the first embodiment.

  As described above, when the neutralization container 8 is installed on the bathroom wall 28 that is orthogonal to the bathroom wall 28 on which the wall penetration pot main body 1 is installed, the distance between the wall penetration pot main body 1 and the neutralization container 8 is increased. In the combustion apparatus according to the present invention, even in such a case, a gradient between the wall penetrating hook body 1 and the neutralization vessel 8 can be secured, and the drain water can be neutralized smoothly. Furthermore, confirmation and replenishment of the remaining amount of calcium carbonate in the neutralization container 8 can be performed simply by removing the apron 31, and convenience can be increased. Thus, the restriction of the installation of the neutralization container 8 is reduced, and the neutralization container 8 can be installed at a position where the neutralizer can be easily maintained.

(Comparative example)
FIG. 16 is a comparative example of the present invention, and is an installation example when the drain pipe connecting portion 7 is provided below the wall penetration pot main body 1 and the drain pipe 6 is connected. It is a perspective view when seen from the surface. FIG. 17: shows the perspective view seen from the bathtub short side (side view of FIG. 16). Other configurations are the same as those in the first embodiment. Thus, when the drain piping connection part 7 is provided under the wall penetration hook main body 1, compared with Examples 1-3, the gradient with the neutralization container 8 is small.

The operation | movement of the combustion apparatus which is Example 1 of this invention is shown. The front view of the wall penetration pot main body used for Example 1 of this invention is shown. The side view of the wall penetration pot main body used for Example 1 of this invention is shown. BRIEF DESCRIPTION OF THE DRAWINGS It is the example of installation of the bathroom which installed the wall penetration pot main body which is Example 1 of this invention in the bathroom, and shows the perspective view seen from the bathroom washing side (a neutralizer is installed in the right side of a wall penetration pot main body). It is the example of installation of the bathroom which installed the wall penetration pot main body which is Example 1 of this invention in the bathroom, and shows the perspective view seen from the bathtub short side (side view of FIG. 4). The front view of the quick fastener system coupling used for the drain piping connection part of Example 1 of this invention is shown. Sectional drawing of the coupling of a quick fastener system used for the drain piping connection part of Example 1 of this invention is shown. The front view of the screwing type coupling used for the drain piping connection part of this invention is shown. Sectional drawing of the joint of the screwing method used for the drain piping connection part of this invention is shown. The front view of the coupling of a clip pin system used for the drain piping connection part of this invention is shown. Sectional drawing of the joint of a clip pin system used for the drain piping connection part of this invention is shown. It is the example of installation of the bathroom which installed the wall penetration pot main body which is Example 2 of this invention in the bathroom, and shows the perspective view seen from the bathroom washing side (neutralizer is installed in the left side of a wall penetration pot main body). It is the example of installation of the bathroom which installed the wall penetration pot main body which is Example 2 of this invention in the bathroom, and shows the perspective view seen from the bathtub short side (side view of FIG. 12). It is the example of installation of the bathroom which installed the wall penetration pot main body which is Example 3 of this invention in the bathroom, and shows the perspective view seen from the bathroom washing side (the neutralizer is orthogonal to the bathroom wall which installed the wall penetration pot Installed on the bathroom wall). It is the example of installation of the bathroom which installed the wall penetration pot main body which is Example 3 of this invention in the bathroom, and shows the perspective view seen from the bathtub short side (side view of FIG. 14). It is an installation example figure of the bathroom which installed the wall penetration kettle body which is a comparative example in the bathroom, and shows a perspective view seen from the bathroom washing side (a drain piping connection part is installed under the wall penetration kettle body). It is the conventional installation example figure of the bathroom which installed the wall penetration pot body which is a comparative example in the bathroom, and shows the perspective view seen from the bathtub short side (side view of Drawing 16). It is the example of installation of the bathroom which installed the water heater which is a prior art example in a bathroom, and shows the perspective view seen from the bathtub short side. It is a front view of the water heater which is a prior art example. It is the example of installation of the bathroom which installed the wall penetration pot which is a conventional example in a bathroom, and shows the perspective view seen from the bathtub short side. It is a front view of the wall penetration pot main body which is a prior art example.

Explanation of symbols

1. Wall through hook body, 2. Water supply pipe connection part, 3 ... Water quantity sensor, 4 ... Hot water supply exhaust port, 5 ... Drain pipe, 6 ... Drain pipe connection, 7 ... Drain pipe connection part, 8 ... Neutralization container, 9 ... Calcium carbonate, 10 ... Secondary heat exchange 11 ... Primary heat exchanger, 12 ... Hot water combustion section, 13 ... Hot water solenoid valve, 14 ... Hot water solenoid valve, 15 ... Bath heat exchanger, 16 ... Circulation pump, 17 ... Hot water pipe connection, 18 ... Gas Pipe connection part, 19 ... Bath return pipe connection part, 20 ... Bath return pipe connection part, 21 ... Water supply pipe, 22 ... Hot water supply pipe, 23 ... Gas pipe, 24 ... Bath return pipe, 25 ... Bath return pipe, 26 ... Body Front cover 27 ... Drain water discharge pipe 28 ... Bathroom wall 29 ... Bathtub 30 ... Bathroom floor 31 ... Apron 32 ... Exhaust port 33 ... Inlet port 34 ... Pipe connection position 35 ... Water heater 36: Circulating metal fittings, 37: Drainage port, 38 ... Faucet, 39 ... Drain Out piping connection part

Claims (5)

  A wall penetrating pot, a drain pipe connecting the wall penetrating pot and the neutralization container, and a neutralization container connected to the wall penetrating pot by the drain pipe, the connecting portion of the drain pipe being a wall penetrating pot Combustion equipment at a higher position than other pipe connections.   The combustion apparatus according to claim 1, wherein a drain pipe connection portion is attached to a front surface of the wall penetration hook.   The combustion apparatus according to claim 1 or 2, wherein a joint of a drain pipe connecting portion provided in the wall penetration hook main body projects in an L shape from the front surface of the wall penetration hook and is rotatable.   In any one of Claims 1-3, the neutralization container is installed in the bathtub wall surface adjacent to a bathtub, and the drain water from a wall penetration kettle is drained by the space enclosed by the bathroom floor, the bathtub, and the bathroom wall. Combustion equipment. The bathroom unit provided with the combustion apparatus in any one of Claims 1-4.

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