JP5333831B2 - Drain drainage - Google Patents

Description

  The present invention relates to a drain drainage tool used to guide a drain (condensed water) generated in a latent heat recovery type hot water supply apparatus to a desired drainage point.

  Conventional examples of drainage drains for air conditioners include those described in Patent Documents 1 and 2. The drain drainage device described in these documents includes a flat drain guide in which a drain channel is formed. This drain guide is, for example, on the floor surface of a shared corridor (open corridor) of an apartment. It is used to drain the drain discharged from the air conditioner to the drainage channel in the common hallway. According to such a configuration, the drain drips into the common hallway, and the common hallway is prevented from getting wet. Further, since the drain guide has a flat shape, it is possible to prevent the passage of people from being hindered as much as possible.

  However, as described below, the conventional drain drainage device is not suitable for drainage of drains generated in the latent heat recovery type hot water supply apparatus, and may have a problem.

  That is, for example, in a latent heat recovery type hot water supply device that recovers sensible heat and latent heat from combustion gas, water vapor in the combustion gas is condensed during the recovery of latent heat, and many drains are generated. Therefore, when the latent heat recovery type hot water supply apparatus is installed in, for example, a pipe space of an apartment, it is conceivable to use the above-described conventional drain drainage device for drainage treatment of a drain discharged from the latent heat recovery type hot water supply apparatus. . However, in the air conditioner for cooling and heating, the drain is not discharged or hardly discharged in the winter season when heating is used, whereas in the latent heat recovery type hot water supply device, the hot water supply operation is performed regardless of the season. The drain is discharged. For this reason, in winter, the drain discharged from the latent heat recovery hot water supply device may freeze in the drain drainage device.

  More specifically, the conventional drain drainage device is merely made of a synthetic resin having poor thermal conductivity, for example. For this reason, when the drain flows into the drain drainage device under conditions where the temperature is low and the temperature of the drain drainage device as a whole is also low, the drain is cooled by coming into contact with the drain drainage device. Further, the drain drainage device does not easily rise in temperature even if a small amount of drain flows into the drain drainage tool. For this reason, unlike when a large amount of drain flows all at once, if the drain flows intermittently in small amounts in the drain drainage device, the drain is likely to freeze and clogging occurs due to freezing. . If such a phenomenon occurs, it becomes difficult to drain drain appropriately, which may adversely affect the latent heat recovery type hot water supply apparatus.

Japanese Patent No. 2966352 Japanese Patent No. 3340718

  The present invention has been conceived under the circumstances as described above, and when used for drainage of drains generated in a latent heat recovery type hot water supply apparatus in winter, the drain channel is frozen. An object of the present invention is to provide a drainage drainage device that can reduce the risk of occurrence of clogging and can prevent clogging caused by freezing.

  In order to solve the above problems, the present invention takes the following technical means.

The drain drainage device provided by the present invention includes a flat drain guide having a drain channel formed therein, and the drain guide is installed outside the latent heat recovery type hot water supply device to recover the latent heat. A drain drainage tool used to guide a drain discharged from the latent heat recovery type hot water supply device to a desired drainage point by being connected to the mold hot water supply device via a drain hose , A main part made of synthetic resin or rubber, and an auxiliary layer provided inside the main part and made of a synthetic resin including a metal filler and having a higher thermal conductivity than the main part, And the whole or a part of the wall surface surrounding the drain channel is constituted by the auxiliary layer.

According to such a configuration, when the drain flows into and passes through the drain flow path, the drain contacts the auxiliary layer. Since this auxiliary layer has a high thermal conductivity, when the drain contacts, the auxiliary layer absorbs the heat of the drain, rapidly rises in temperature, and functions as a heat storage layer that stores this heat. In addition, since the auxiliary layer is provided inside the main part of the drain guide having a lower thermal conductivity than the auxiliary layer, the main part plays a role of preventing heat dissipation from the auxiliary layer to the outside. Thus, it is further promoted that the auxiliary layer functions as a heat storage layer. For this reason, even in the case where the drain intermittently and gradually flows into the drain channel in a low temperature atmosphere in winter, the drain is difficult to freeze. As a result, clogging caused by freezing is suppressed, and adverse effects on the operating status of the latent heat recovery type hot water supply apparatus are also preferably suppressed.
Furthermore, for example, compared to the case where the auxiliary layer is made of metal, the auxiliary layer can be easily formed, which is suitable for reducing the entire manufacturing cost. Further, if the entire drain guide is made of synthetic resin and has flexibility, even if the inclination angle of the floor surface on which the drain guide is installed changes in the middle, the drain guide is made corresponding to this inclination angle. The guide can be bent and the bottom surface of the drain guide can be brought into close contact with the installation floor. In addition, when the drain guide is long, it can be stored or transported in a state of being wound up in a roll shape when not in use.

  In a preferred embodiment of the present invention, the metal filler is copper, and substantially the entire wall surface surrounding the drain channel is constituted by the auxiliary layer, and the copper of the auxiliary layer is used for the drain. It is comprised so that the sterilization effect | action in a flow path may be exhibited.

  According to such a configuration, it is possible to effectively use the sterilizing action inherent in copper and improve the sanitary condition in the drain guide flow path. Moreover, copper is considered to be optimal as a material for increasing the thermal conductivity of the auxiliary layer because it is relatively inexpensive and has high thermal conductivity.

  In a preferred embodiment of the present invention, a heat insulating layer having a thermal conductivity lower than these is provided between the main part and the auxiliary layer.

  According to such a configuration, heat dissipation from the auxiliary layer is more appropriately suppressed, and the effect of the auxiliary layer functioning as the heat storage layer described above is further enhanced.

  In a preferred embodiment of the present invention, a drain connected to one end of the drain guide and connected to a drain hose of the latent heat recovery hot water supply device is further provided, and the drain that has passed through the drain hose. Is configured to be guided to the drain channel of the drain guide via the connector.

  According to such a configuration, it is possible to appropriately conduct the drain discharged using the drain hose to the drain channel of the drain guide with a simple structure.

  In a preferred embodiment of the present invention, the connector is formed in a hollow flat shape, and a base portion that is partially connected to one end of the drain guide; And a standing pipe part in which a connection port of the drain hose is formed, and the standing pipe part has flexibility to change the standing posture of the standing pipe part.

  According to such a configuration, the base part and the drain guide of the connector are installed in, for example, the common hall of the apartment house, and the upper part of the upright piping part of the connector is entered into the pipe space of the apartment house. It is suitable for use in. It is customary that a door is provided on the front surface of the pipe space. In the case of the above-described aspect, the upright piping portion is made to enter the pipe space from a gap below the door. In this case, by changing the standing posture of the standing piping part corresponding to the height of the gap below the door, the door and the standing piping part can be prevented from interfering with each other when the door is opened and closed. It will be possible.

  In a preferred embodiment of the present invention, the connector includes a heating means capable of directly or indirectly heating a drain flowing through the interior of the connector, and heat generated from the heating means. And a heat transfer portion in contact with the auxiliary layer so as to be transmitted to the auxiliary layer.

  According to such a configuration, in addition to the drain heating action by the heating means, the action of transferring the heat from the heating means to the auxiliary layer of the drain guide can more reliably prevent the drain from freezing. If the drain is frozen, it can be used for thawing. If the heating means is provided in the coupling tool, not only can the pedestrian step on the heating means, but the drain will be heated in the upstream region of the drain flow, and the anti-freezing effect will be further enhanced (for example, If the drain is heated in the downstream region of the drain flow, the drain temperature cannot be increased in the upstream region, and there is a risk of freezing in this upstream region).

  In a preferred embodiment of the present invention, at least one of a treatment for reducing formaldehyde and an antibacterial treatment is performed on the portion in contact with the drain.

  Such a configuration is preferable for improving the environment and hygiene.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1 to 4 show an example of a drain drainage device to which the present invention is applied. As clearly shown in FIG. 1, the drain drainage tool A of this embodiment includes a drain guide 1 and a connecting tool 2.

  The drain guide 1 has a flat shape (strip shape) extending linearly with a constant width, and a drain flow path 18 is formed in series in the drain guide 1 over the entire length in the longitudinal direction. As clearly shown in FIG. 2, the drain guide 1 includes a main portion 10 that occupies most of the drain guide 1 and an auxiliary layer 11 provided inside the main portion 10. .

  The main portion 10 is made of, for example, vinyl chloride resin and has a hollow shape having a drain flow path 18 therein. Both side edges 10a in the width direction (short side direction) of the main part 10 are formed thinner than the center part in the width direction, and the drain guide 1 has an upper surface that is as gentle as possible. Sometimes it is not disturbed by pedestrians.

  The auxiliary layer 11 is made of a synthetic resin having higher thermal conductivity than that of the main portion 10 and excellent in thermal conductivity, for example, polypropylene or polyamide resin containing a copper filler. Copper exhibits a sterilizing effect as its original characteristic. The auxiliary layer 11 is formed in a flat tube shape and is inserted into the main part 10. Thus, in the present embodiment, the entire region inside the auxiliary layer 11 is substantially the drain channel 18, and the entire wall surface 18 a surrounding the drain channel 18 is configured by the auxiliary layer 11. Yes. A plurality of convex portions 11a projecting upward are provided on the bottom surface of the auxiliary layer 11, and these convex portions 11a are formed when the drain guide 1 is stepped on by a person and compressed and deformed. This is to prevent the path 18 from being fully closed.

  Since the main portion 10 and the auxiliary layer 11 are both made of a flexible material, the entire drain guide 1 also has flexibility. Therefore, when the drain guide 1 is relatively long, it can be wound into a roll when not in use. When the installation floor is non-flat, the drain guide 1 can be bent in correspondence with the installation floor, and the lower surface of the drain guide 1 can be brought into close contact with the installation floor. Preferably, the surface of the auxiliary layer 11 that comes into contact with the drain is subjected to a treatment for reducing formaldehyde contained in the drain. This treatment is performed, for example, by coating with manganese dioxide. However, when this coating layer is provided on the entire inner surface of the auxiliary layer 11, the sterilization effect of the copper filler is hindered, so that the coating layer is partially provided on the inner surface of the auxiliary layer 11.

  As clearly shown in FIG. 3, the connector 2 includes a base portion 20 formed in a flat shape with a hollow structure, and an upright tube portion 21 erected upward from the base portion 20. . These portions are made of a synthetic resin excellent in resin moldability, and are made of the same material as the main portion 10 of the drain guide 1, for example. The base portion 20 has an insertion portion 20 a that can be inserted into one end opening portion of the drain flow path 18, and the connection between the drain guide 1 and the connector 2 is released by this insertion.

  The base portion 20 is also provided with a heater H and a plurality of heat transfer portions 3. The heater H is, for example, a self-temperature control type electric heater that turns on and off in accordance with the ambient temperature, and is provided on the upper surface of the base portion 20. As a means for improving the heating efficiency for the drain, the heater H may be arranged in the base portion 20. The plurality of heat transfer portions 3 are configured using, for example, a strip-shaped copper plate, and a part of the heat transfer portions 3 protrudes in front of the insertion portion 20a. The heat transfer portion 3 is a portion for transferring heat generated from the heater H to the auxiliary layer 11 of the drain guide 1. As shown in FIG. 4, when the connector 2 is connected to the drain guide 1, the tip 3 a of the heat transfer section 3 is in surface contact with the auxiliary layer 11 in a relatively wide area. As shown in part of FIG. 3, a plurality of upward projections 20 b are also formed on the bottom surface of the base portion 20, so that the interior is not fully closed when compressively deformed. Has been.

  The upright tube part 21 has a connection port 21a for connecting the drain hose 4 of a latent heat recovery type hot water supply device (not shown) at the top. The drain that has flowed into the standing tube portion 21 from the drain hose 4 then flows into the drain flow path 18 of the drain guide 1 after passing through the base portion 20. The standing tube portion 21 has, for example, a plurality of bellows portions 21b and 21c or a similar structure portion. The standing tube portion 21 is bent at the bellows portions 21b and 21c, and the standing posture thereof is appropriately changed. It has possible flexibility. Of course, substantially the entire upright tube portion 21 may have a bellows structure. As shown in FIG. 4, a plurality of convex portions 21 d are also provided in the standing tube portion 21, and when the standing tube portion 21 is accidentally compressed, the inside is in a fully closed state. Is prevented. The upright tube portion 21 has a flat shape with a small thickness in the front-rear direction compared to the lateral width. Preferably, in the inner surface of the upright tube portion 21 and the inner surface of the base portion 20, the contact region with the drain is subjected to a treatment for reducing formaldehyde similarly to the drain guide 1. More preferably, an antibacterial treatment coated or kneaded with an antibacterial agent is also applied.

  Next, an example of use and operation of the drain drainage tool A will be described.

  As shown in FIG. 4, the drain drainage tool A is mounted and used on the floor surface 5 of the shared corridor of the apartment house such as an apartment. The pipe space PS of the housing complex is provided with a latent heat recovery type hot water supply device, and the drain drainage tool A drains the drain generated in the latent heat recovery type hot water supply device and passed through the drain hose 4 into the common corridor drainage. It is set so that it can be led to the groove 50 and drained. In addition, it is customary that the common corridor is inclined so that the drainage groove 50 side has a lower height than the pipe space SP side so that drainage into the drainage groove 50 is performed smoothly. Correspondingly, the drainage 50 side of the base portion 20 and the drain guide 1 of the connector 2 is lowered (however, it is shown substantially horizontally in the drawing).

  When the drainage tool A is set as described above, the upright tube portion 21 is passed through the gap 60 formed below the door 6 of the pipe space PS. Since the upright tube portion 21 has a flat shape with a small thickness in the front-rear direction, even when the vertical width of the gap 60 is small, a portion of the upright tube portion 21 is laid down. It becomes easy to pass through the gap 60. In addition, since the standing tube portion 21 can be changed in its standing posture by bending at the portions of the bellows portions 21b and 21c, when the door 6 is opened and closed, the interference with the door 6 is not generated. It is possible to pass through the gap 60 appropriately.

  On the other hand, the drain that has passed through the drain hose 4 flows into the drain channel 18 of the drain guide 1 after passing through the inside of the connector 2 as described above. When the drain flows through the drain channel 18, the drain contacts the auxiliary layer 11. Since the auxiliary layer 11 has a high thermal conductivity, when the drain contacts, the auxiliary layer 11 quickly absorbs the heat of the drain and rises in temperature to become a heat storage layer that stores this heat. Since the auxiliary layer 11 is surrounded by the main portion 10 having a lower thermal conductivity than the auxiliary layer 11, heat dissipation from the auxiliary layer 11 to the outside of the drain guide 1 is also suppressed. The temperature is difficult to decrease. In the low temperature atmosphere in winter, when the drain intermittently flows into the drain channel little by little, the drain is particularly easily frozen. However, in the drain drainage tool A of the present embodiment, the situation described above is achieved. At this time, since the auxiliary layer 11 functions as a heat storage layer that retains heat, the drain becomes difficult to freeze and clogging can be prevented. It should be noted that prevention of freezing in the drain flow path 18 may be achieved in a period until the drain is discharged from the drain flow path 18 to the drain groove 50. For the drain remaining in the drain flow path 18 in a small amount. Since this does not cause clogging even if it freezes, such freezing can be ignored.

  When the ambient atmosphere temperature around the drain drainage tool A is considerably low and falls below a predetermined temperature, the heater H is turned on and the drain drainage tool A is heated. Although the heater H is provided in the connector 2, the heat generated from the heater H is applied to the auxiliary layer 11 of the drain guide 1 through the heat transfer portion 3 having a high thermal conductivity as described above. Is also communicated. Since the auxiliary layer 11 has a high thermal conductivity, the entire auxiliary layer 11 can be efficiently warmed, and the temperature of the end portion close to the drainage groove 50 can be sufficiently increased. Therefore, drain freezing can be suitably prevented even when the outside air temperature becomes a considerably low temperature below the freezing point.

  On the other hand, since the auxiliary layer 11 is made of a resin containing a copper filler that exhibits a sterilizing action, it is preferable to prevent germs from growing in the drain channel 18 in summer and the like. The inside of the path 18 can be maintained in a good state of hygiene. In particular, since the auxiliary layer 11 surrounds the entire periphery of the drain flow path 18, the effect can be further enhanced. Further, since the auxiliary layer 11 is subjected to a treatment for reducing formaldehyde, the drain having a reduced formaldehyde concentration is discharged to the drainage groove 50, which is preferable in terms of environmental hygiene. If the connector 2 is also configured to have a formaldehyde-reducing treatment or an antibacterial treatment, the effects as described above are further enhanced, and it is more preferable for improving environmental hygiene.

  5 and 6 show another embodiment of the present invention. In these drawings, elements that are the same as or similar to those in the above embodiment are given the same reference numerals as in the above embodiment.

  In the embodiment shown in FIG. 5, a heat insulating layer 13 having a thermal conductivity lower than these is provided between the main portion 10 of the drain guide 1 and the auxiliary layer 11. The heat insulating layer 13 has a flat tube shape surrounding the entire periphery of the auxiliary layer 11 and is made of, for example, expanded polystyrene. According to the present embodiment, since the effect of preventing heat dissipation from the auxiliary layer 11 to the outside of the drain guide 1 is enhanced, after the auxiliary layer 11 absorbs the heat of the drain, the auxiliary layer 11 is less likely to cause a temperature drop. Thus, the effect of preventing the freezing of the drain is also enhanced.

  In the embodiment shown in FIG. 6, the drain guide 1 is divided into two parts in the vertical direction, and the upper part 1 </ b> A and the lower part 1 </ b> B connected through the engaging parts 14 a and 14 b are combined to form the whole. Becomes a flat tube shape. According to the present embodiment, when the upper portion 1A is removed from the lower portion 1B, the upper and lower portions of the auxiliary layer 11 surrounding the drain flow path 18 can be separated to expose the inner surface of the auxiliary layer 11 to the outside. . Therefore, this portion can be easily cleaned. As understood from the present embodiment, each of the main part and the auxiliary layer of the drain guide referred to in the present invention is not necessarily constituted by a single member, and is configured by combining a plurality of members. It doesn't matter.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the drainage device according to the present invention can be varied in design in various ways.

  The specific material of each part of the drainage tool can be different from that of the above embodiment. For example, the main part 10 of the drain guide and the connector 2 can be made of synthetic resin or rubber other than vinyl chloride. About the auxiliary layer of a drain guide, it can replace with a copper filler, and can improve thermal conductivity also when other metal fillers, such as aluminum and an aluminum alloy, are used. If silver is used as the filler, it is possible to provide an antibacterial effect as in the case of copper. For example, an aluminum foil sheet having good thermal conductivity can be used as the auxiliary layer or as an auxiliary to the auxiliary layer.

  If the drain hose can be directly connected to one end thereof, the drain guide can be used without using a connector. Therefore, the drain drainage tool referred to in the present invention can be established only by the drain guide.

As the heating means in the present invention, a hydration heating element that generates heat by contact with the drain, for example, may be used instead of or in addition to the electrothermal heater. More specifically, the hydration heating element is disposed in, for example, a connector so that the drain does not come into contact with the hydration heating element in normal times. In addition, when the drain freezes, the drain on the upstream side of the drain flows out of the drain channel and is led to the place where the hydrated heating element is disposed at the appropriate position of the drain channel in the connector. It is configured as follows. According to such a configuration, when the drain starts to freeze, the hydration heating element generates heat due to contact with the drain, and this heat can be used to quickly defrost the frozen drain and prevent freezing thereafter. it can. As the heating means, hot water generated by a latent heat recovery type hot water supply apparatus can be used . Of course, the drain drainage device according to the present invention can be installed and used in a place other than the shared corridor of the apartment house.

It is a perspective view which shows an example of the drain drainage tool which concerns on this invention. It is II-II sectional drawing of FIG. It is a principal part disassembled perspective view of the drain drainage tool shown in FIG. It is sectional drawing which shows an example of the installation use condition of the drain drainage tool shown in FIG. It is sectional drawing which shows the other example of this invention. It is sectional drawing which shows the other example of this invention.

Explanation of symbols

A Drain drainage tool H Heater (heating means)
DESCRIPTION OF SYMBOLS 1 Drain guide 2 Connector 3 Heat transfer part 4 Drain hose 10 Main part 11 Auxiliary layer 13 Heat insulation layer 18 Drain flow path 18a Wall surface 20 which surrounds the drain flow path 20 Base part 20a Insertion part 21 Standing tube part 21a Drain hose Connection

Claims (7)

It has a flat drain guide with a drain channel inside.
The drain guide is installed outside the latent heat recovery type hot water supply device and connected to the latent heat recovery type hot water supply device via a drain hose, thereby allowing the drain discharged from the latent heat recovery type hot water supply device to have a desired drainage point. A drain drainage device used to lead to
The drain guide is made of a synthetic resin including a main part made of synthetic resin or rubber and a metal filler provided inside the main part, and has a higher thermal conductivity than the main part. An auxiliary layer,
The drain drainage device, wherein the whole or a part of the wall surface surrounding the drain flow path is constituted by the auxiliary layer. The drain drainage device according to claim 1,
The metal filler is copper, and substantially the entire wall surface surrounding the drain channel is constituted by the auxiliary layer, so that the copper of the auxiliary layer exerts a sterilizing action in the drain channel. is configured, drain drainage device. The drain drainage device according to claim 1 or 2 ,
A drainage drainage tool in which a heat insulating layer having a lower thermal conductivity than these is provided between the main part and the auxiliary layer . The drain drainage device according to any one of claims 1 to 3,
A connection tool connected to one end of the drain guide and connected to the drain hose of the latent heat recovery hot water supply device;
A drain drainage tool configured such that a drain that has passed through the drain hose is guided to a drain flow path of the drain guide via the connector . The drain drainage device according to claim 4 ,
The coupling tool is formed in a hollow flat shape, a base portion that is partially connected to one end of the drain guide, and a stand that stands from the base portion and has a connection port for the drain hose formed on the upper portion. A piping section, and
The upright piping section has flexibility to change the standing posture of the upright piping section.
And that, drain drainage equipment. A drainage drainage device according to claim 4 or 5 ,
The connector includes a heating means capable of directly or indirectly heating the drain flowing through the inside of the connector, and the auxiliary means for transferring heat generated from the heating means to the auxiliary layer of the drain guide. A drainage drainage device provided with a heat transfer section in contact with the layer . The drain drainage device according to any one of claims 1 to 6 ,
A drain drainage device in which at least one of a treatment for reducing formaldehyde and an antibacterial treatment is applied to a portion in contact with the drain .

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