Condensation reduction system for water-related facilities

Abstract

To provide a condensation reduction device that enables discharge of water vapor while reducing condensation on an inner surface caused by water vapor, in water-related facilities where water vapor is constantly generated.SOLUTION: A condensation reduction device for water-related facilities of the present invention has a building with water circulation equipment installed inside, and comprises: a first coating layer applied to at least a part of the wall, ceiling, and floor surfaces inside the building; a second coating layer applied to a coating area excluding a part of the water circulation equipment; a non-coating area other than the coating area of the water circulation equipment; a condensation recovery unit that collects condensation that occurs in the non-coating area as water; and an exhaust unit that exhausts the water collected in the condensation recovery unit outside the building. The first coating layer and the second coating layer have a condensation prevention function.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] Due to social infrastructure and other needs, there are many water-related facilities in society. For example, there are water purification facilities for water supply systems, water supply facilities for communities and housing complexes, etc. There are also water purification facilities and water supply facilities for buildings and factories, etc. In addition to water purification facilities for water supply systems, there are also sewage treatment facilities that treat sewage.

[0002] Water is necessary for human life and is indispensable for the maintenance of society. Of course, water is needed not only for daily life but also for agricultural and industrial use, among other things.

[0003] For this reason, as described above, various types of water-related facilities exist in various locations.

[0004] Water-related facilities such as water purification plants are equipped with water circulation equipment such as water pumps that circulate water, as well as water tanks, within the buildings. This makes it easy for humidity to become high inside the buildings. As long as water circulation equipment such as water pumps is installed, the situation where humidity is likely to become high will continue. In such high humidity conditions, the problem of condensation inside the buildings can occur due to changes in the outside temperature and humidity of the external environment.

[0005] Buildings are constructed using various construction methods, such as reinforced concrete and wood. Condensation inside the building leads to deterioration of these materials. In addition to the materials, there are also problems such as rusting of the iron elements used in construction, such as nails, screws, and steel frames.

[0006] When such deterioration and rust occur, the building itself deteriorates, which leads to the problem of shortening the useful life of the building. When the useful life of water-related facilities is shortened, the problem of rising costs for infrastructure development such as maintenance and rebuilding arises. Water-related facilities are often constructed by public organizations and associations. These organizations have a hard time budgeting for infrastructure development, so a long useful life is necessary.

[0007] Furthermore, a short service life requires more frequent maintenance and rebuilding, which means more building materials are used. This not only leads to increased costs, but also places a strain on the global environment. Furthermore, during maintenance and rebuilding periods, water-related facilities stop operating, meaning that they cannot maintain their functionality as infrastructure facilities. This can also be a nuisance to local residents.

[0008] Techniques for preventing such condensation have been proposed (see, for example, Patent Documents 1 to 4). [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Japanese Patent Application Publication No. 5-187050 [Patent Document 2] Patent Publication No. 2022-87545 [Patent Document 3] JP 2006-20622 A [Patent Document 4] JP 2001-200597 A Summary of the Invention [Problem to be solved by the invention]

[0010] Patent Document 1 discloses a vacuum valve device in which condensation sensors S for detecting condensation are provided in each of connection pipes 13c, 13d and 13e which are connected to a controller 13a of the vacuum valve 13 via a water level detection pipe 13b, an atmospheric pressure introduction pipe 21 and a vacuum sewage pipe 14, respectively, and the outputs of each are transmitted to external maintenance personnel or the like via electric wires or the like.

[0011] Patent Document 1 discloses a technology that aims to detect condensation and notify the occurrence. However, as mentioned above, there is a constant possibility of condensation in water-related facilities, and notifications are also required on a constant basis. There is a limit to the number of security personnel, and water-related facilities are often located in mountainous areas or suburban areas, making maintenance by maintenance personnel difficult. Of course, condensation cannot be suppressed.

[0012] Patent document 2 discloses a condensation suppression device that includes a blower 31 that blows air, and a condensation suppression mechanism 35 that is arranged along an air supply duct and directs the air blown from the blower 31 against the outer peripheral surface of the air supply duct.

[0013] The publication discloses a technology for preventing condensation by blowing air.

[0014] However, in actual water-related facilities, the humidity inside the buildings is constantly high, and condensation occurs constantly in response to changes in the external environment. In addition, for security and safety reasons, the interior of water purification facilities is closed except for ventilation holes. For this reason, simply blowing air is not enough to prevent condensation. In addition, in water-related facilities, the water pumps and water circulation devices inside the buildings constantly generate water vapor, which causes condensation on the walls and floors inside the buildings. In other words, condensation can occur throughout the entire interior of the building.

[0015] In this state, blowing air is not enough to prevent condensation. In reality, condensation spreads even more even if air is blown. This is a long way from solving the problems of deterioration and mold. Of course, installing the necessary air blower also increases the introduction and running costs.

[0016] Patent Document 3 discloses an anti-condensation sheet characterized by having a synthetic resin sheet 12 having an adhesive layer 14 formed on one side and a release sheet 16 attached so as to be removable and cover the adhesive layer, a first coating film 20 formed on the other side of the synthetic resin sheet 12 and made of paint having ceramic powder mixed therein that has heat reflectivity, and a second coating film 22 formed on the first coating film 20 and made of paint having ceramic powder mixed therein that has water absorbency and moisture dissipation properties.

[0017] However, even if this condensation prevention sheet is installed inside the building, it will not reduce the amount of water vapor that is generated inside the building. Even if condensation due to the generated water vapor is prevented, condensation will eventually occur if the water vapor saturation state continues. The water vapor that has nowhere to go due to condensation will deteriorate the building and water circulation equipment.

[0018] Anti-condensation sheet technology alone is not sufficient to reduce condensation in water-related facilities where water vapor is constantly generated.

[0019] Patent Document 4 discloses a structure in which a foaming fireproof paint layer formed from a foaming fireproof paint and a dew condensation prevention paint layer formed from a dew condensation prevention paint are laminated on the surface of the structure from the structure side. The dew condensation prevention paint is made of a synthetic resin emulsion and an inorganic porous filler, and a water-absorbing polymer is further added to the dew condensation prevention structure.

[0020] Patent Document 4 has the same problem as Patent Document 3.

[0021] In addition, the anti-condensation paint is made of inorganic porous materials and water-absorbing polymers. Therefore, there is a limit to the amount of water it can absorb, and therefore to its ability to prevent condensation. If it is used in a home or office, where ventilation is always provided by opening and closing the doors, and where residents and others constantly manage the facility, this type of condensation prevention is sufficient, but in water-related facilities that are usually closed and left unattended, ventilation is not possible. As a result, when the anti-condensation paint reaches its limit, condensation will occur.

[0022] Furthermore, as in Patent Document 3, water vapor is constantly generated, so even if measures are taken to prevent condensation, water vapor will reach saturation inside the building, again leading to problems such as deterioration.

[0023] Unlike buildings such as ordinary homes and offices, where the amount and duration of water vapor generation is small and where ventilation and maintenance are constantly performed, water-related facilities are usually located in mountainous areas or suburban areas and are normally closed. In addition, workers and residents do not constantly enter and exit the facilities. For this reason, conventional condensation prevention materials designed for ordinary homes are insufficient to solve problems caused by condensation.

[0024] In view of these problems, the present invention aims to provide a condensation reduction device for water-related facilities where water vapor is constantly generated, which enables the discharge of water vapor while reducing condensation on the inner surface caused by water vapor. [Means for solving the problem]

[0025] The dew condensation reduction device for a water-related facility of the present invention is a dew condensation reduction device for a water-related facility having a building in which a water circulation device is installed inside, A first coating layer applied to at least a portion of the wall, ceiling, and floor surfaces inside the building; A second coating layer applied to a coating area excluding a part of the water circulation device; a non-covered area other than the covered area of ​​the water circulation device; A condensation recovery unit that recovers condensation generated in the uncovered area as moisture; A discharge unit that discharges the moisture collected by the condensation collection unit to an outside of a building, The first coating layer and the second coating layer have a dew condensation prevention function. Effect of the Invention

[0026] The condensation reduction device for water-related facilities of the present invention covers the interior walls and part of the water circulation equipment inside the building, thereby preventing condensation in the covered areas while concentrating condensation in the uncovered areas.

[0027] The moisture produced by this condensation is discharged to the outside from the area where the condensation has concentrated. This allows the constant water vapor to be discharged without filling the inside of the building. As a result, the amount of water vapor inside the building can be reduced.

[0028] The amount of water vapor in the entire building can be controlled, and the coating reduces condensation on the interior walls. This prevents deterioration and mold in the building, improving its durability and service life.

[0029] This is particularly useful for water-related facilities such as water purification plants that are located in mountainous areas or suburban areas and are usually closed and difficult to maintain. [Brief description of the drawings]

[0030] [Figure 1] 1 is a schematic diagram of a condensation reduction device for water-related facilities in accordance with a first embodiment of the present invention. [Diagram 2] This is a schematic diagram showing this first layer. [Diagram 3] FIG. 3 is a schematic diagram of a second coating layer in the first embodiment of the present invention. [Figure 4] 13 is a photograph of a water purification facility where an experiment was conducted in the second embodiment of the present invention. [Diagram 5] 1 is a photograph of the inner wall of the water purification facility 200 after a first coating layer has been applied. [Figure 6] 13 is a photograph showing a state in which a second coating layer is applied to a water circulating device in accordance with a second embodiment of the present invention. [Figure 7] 13 is a photograph showing a state in which a second coating layer is applied to a water circulating device in accordance with a second embodiment of the present invention. [Figure 8] 13 is a photograph showing an experimental state for comparing increases in surface moisture in the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] The first aspect of the present invention relates to a condensation reduction device for a water-related facility, the condensation reduction device for a water-related facility including a building in which a water circulation device is installed, A first coating layer applied to at least a portion of the wall, ceiling, and floor surfaces inside the building; A second coating layer applied to a coating area excluding a part of the water circulation device; a non-covered area other than the covered area of ​​the water circulation device; A condensation recovery unit that recovers condensation generated in the uncovered area as moisture; A discharge unit that discharges the moisture collected by the condensation collection unit to an outside of a building, The first coating layer and the second coating layer have a dew condensation prevention function.

[0032] This configuration suppresses condensation in areas other than the uncovered area while concentrating condensation in the uncovered area, so excess moisture inside the building is drained and excess humidity inside the building is suppressed. The combination of suppressing condensation and draining excess moisture suppresses condensation inside the building, which helps prevent deterioration of the building.

[0033] In a second aspect of the present invention, in addition to the features of the first aspect, the first coating layer and the second coating layer each have at least a first layer, The first layer is A plurality of hollow ceramics; and a resin binder that connects the plurality of hollow ceramics together.

[0034] With this configuration, the first layer converts the applied heat into far-infrared rays and radiates them, thereby increasing the dew point and suppressing condensation.

[0035] In a third aspect of the present invention, in addition to the features of the second aspect, the second coating layer has a second layer on the outside of the first layer, The second layer includes a plurality of silica particles and a resin binder that connects the plurality of silica particles to each other, The silica is porous.

[0036] With this configuration, moisture absorption by silica is achieved, and condensation on the second coating layer is suppressed.

[0037] A fourth aspect of the present invention provides a condensation reduction device for water-related facilities according to the third aspect of the present invention, wherein the resin binder includes an acrylic resin binder.

[0038] This structure allows for flexible adaptation to silica, whose diameter increases or decreases due to moisture absorption.

[0039] In a condensation reduction device for water-related facilities according to a fifth aspect of the present invention, in addition to the features of the third aspect, the silica contained in the second layer absorbs moisture and water vapor inside the building.

[0040] With this configuration, excess moisture is absorbed by the hygroscopic properties of the silica, and the occurrence of condensation is suppressed.

[0041] In the sixth aspect of the present invention, in addition to the fifth aspect, when the temperature outside the building is lower than the temperature inside the building, The hollow ceramics included in the first layer reflects heat conducted from the inside of the building back to the inside of the building as reflected heat, The reflected heat increases the temperature of the second layer; In terms of the relationship between the moisture absorption amount of the silica and the temperature of the silica, the dew point can be suppressed from being reached.

[0042] This configuration reliably suppresses condensation on the second covering layer.

[0043] In the dew condensation reduction device for water-related facilities according to the seventh aspect of the present invention, in addition to the features of the sixth aspect, dew condensation inside the building can be suppressed by suppressing moisture absorption by the silica and the silica from reaching its dew point.

[0044] This configuration suppresses condensation inside the building and inhibits deterioration of the building.

[0045] In the condensation reduction device for water-related facilities according to the eighth aspect of the present invention, in addition to the features of the second aspect, the hollow ceramics of the first layer convert the heat inside the building into far-infrared rays and radiate them, thereby reducing the size of the water molecules inside the building.

[0046] This structure allows the silica to absorb moisture efficiently and also reduces the risk of condensation.

[0047] In the ninth aspect of the present invention, in addition to the features of the first aspect, a condensation reducing device for water-related facilities has the following features: condensation is less likely to occur in the area covered by the first covering layer and the second covering layer; Condensation concentrates in the uncovered areas.

[0048] With this configuration, excess moisture inside the building is continuously discharged to the outside through condensation in the uncovered areas, which suppresses the amount of excess moisture inside the building and also suppresses condensation.

[0049] In the condensation reduction device for water-related facilities according to the tenth aspect of the present invention, in addition to the ninth aspect, the condensation concentrated in the uncovered area is discharged as moisture to the outside of the building by the discharge section, thereby reducing the humidity inside the building.

[0050] This configuration prevents deterioration and reduced durability due to condensation in the building.

[0051] An eleventh aspect of the present invention provides a condensation reduction device for water-related facilities according to the first aspect of the present invention, wherein the uncovered area is provided at a lower part inside the building.

[0052] This configuration ensures that moisture collected from condensation is discharged outside the building.

[0053] A condensation reduction device for water-related facilities according to a twelfth aspect of the present invention has the features of the first aspect, in which the water circulation device lowers the device temperature by continuously circulating water. Condensation easily forms in the uncovered areas.

[0054] This configuration allows excess moisture inside the building to be concentrated and condensed in the uncovered areas, allowing the excess moisture to be continuously discharged to the outside.

[0055] A thirteenth aspect of the present invention provides a condensation reduction device for water-related facilities according to the twelfth aspect of the present invention, wherein the water circulation equipment includes at least one of a water supply and sewerage pipeline, a water pump, and a drainage pipeline.

[0056] This configuration makes it possible to reduce condensation in water-related facilities equipped with a variety of equipment.

[0057] A condensation reduction device for water-related facilities according to a fourteenth aspect of the present invention is, in addition to the features of the first aspect, characterized in that the discharge section discharges the collected moisture from a floor surface of the building to the outside of the building.

[0058] This configuration allows the moisture collected from condensation to be efficiently discharged to the outside.

[0059] In the condensation reduction device for water-related facilities according to the fifteenth aspect of the present invention, in addition to the first aspect, the water-related facility is at least one of a water purification facility, a sewage facility, a pressure reducing valve room, a septic tank facility, and a water supply facility.

[0060] This configuration makes it possible to suppress internal condensation in various water-related facilities.

[0061] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0062] (Embodiment 1)

[0063] (Overview) Fig. 1 is a schematic diagram of a condensation reduction device for a water-related facility in embodiment 1 of the present invention. The condensation reduction device for a water-related facility (hereinafter, abbreviated as "condensation reduction device" as necessary) is a facility equipped with a building in which water circulation equipment is installed. Fig. 1 shows a building 2 in which water circulation equipment 3 is installed.

[0064] The condensation reduction device 1 reduces condensation inside a building 2. The building 2 is equipped with water circulation equipment 3 inside. For example, water-related facilities include water purification facilities, sewage facilities, purification tanks, water supply facilities, etc. For this reason, the water circulation equipment 3 includes pipes and water pumps for circulating water.

[0065] For safety and management reasons, the building 2 of the water-related facility is nearly sealed. The walls are rarely open. Since the water circulation equipment 3 that circulates water is installed inside this building 2, water vapor is constantly generated, and condensation occurs inside the building 2 when the outside temperature is low. Condensation also occurs on the water circulation equipment 3.

[0066] Since water circulates continuously in the water circulation equipment 3, water vapor is also generated continuously. In other words, condensation also occurs continuously. If excessive condensation occurs inside the building 2, it may lead to deterioration of the building 2 and deterioration of the functions of the water circulation equipment 3. The condensation reduction device 1 of the present invention reduces this condensation.

[0067] The condensation reduction device 1 includes a first coating layer 4, a second coating layer 5, an uncoated region 6, a condensation collection section 7, and a discharge section 8.

[0068] The first coating layer 4 is applied to at least a portion of the wall surfaces 21, ceiling surface 22, and floor surface 23 inside the building 2. The first coating layer 4 is applied to at least a portion (in some cases, the entirety of the interior surface, to the extent possible) of the areas that can become the interior surfaces inside the building 2. The wall surfaces 21, ceiling surface 22, and floor surface 23 are areas that become the interior surfaces inside the building 2. Even if the building 2 has a complex shape, these refer to the interior surfaces.

[0069] The second coating layer 5 is applied to a coating area 51 excluding a portion of the water circulation device 3. If the water circulation device 3 is a pipeline, the second coating layer 5 is applied to a coating area 51 excluding a portion of the pipeline. If the water circulation device 3 is a water pump, the second coating layer 5 is applied to a coating area 51 excluding a portion of the water pump. In either case, the second coating layer 5 is applied to the surface of the water circulation device 3.

[0070] The first coating layer 4 and the second coating layer 5 have a condensation prevention function. On the other hand, the uncoated area 6 is a part of the surface of the water circulation equipment 3 and is not provided with the first coating layer 4 or the second coating layer 5, so condensation occurs intensively in the uncoated area 6. This is because water vapor inside the building 2 is less likely to condense in the first coating layer 4 or the second coating layer 5, so condensation occurs relatively to a large extent in the uncoated area 6. In addition, since the uncoated area 6 is provided as a part of the water circulation equipment 3, it is likely to become lower than the room temperature inside the building 2. As a result, condensation due to water vapor inside the building 2 occurs intensively in the uncoated area 6.

[0071] The condensation recovery unit 7 recovers the condensation generated in the non-covered region 6 as moisture. The condensation recovery unit 7 has a metal member or the like that contacts the non-covered region 6 and can recover the condensation as moisture. Alternatively, it may have a function of sucking up the condensation generated in the non-covered region 6 as moisture due to capillary action, osmotic pressure, or the like.

[0072] With these configurations and functions, the condensation recovery section 7 can recover the condensation generated in the uncovered area 6 as moisture.

[0073] The discharge unit 8 discharges the moisture collected by the condensation collection unit 7 to the outside of the building 2. For example, the discharge unit 8 is provided with an opening or a drain pipe provided on the floor surface 23 or the like, and can discharge the moisture to the outside of the building 2. Of course, the discharge unit 8 may be provided on the wall surface 21 other than the floor surface 23, but in order to efficiently and easily discharge the moisture, it is preferable that the discharge unit 8 is configured to discharge the moisture via the floor surface 23.

[0074] If the moisture that condenses when it reaches the dew point in the uncoated regions 6 is discharged, the amount of water vapor that is constantly generated is suppressed, making it difficult for condensation to occur on the inner surfaces inside the building 2. This is because the moisture is discharged before the dew point is reached throughout the building 2. Combined with the fact that the first coating layer 4 and second coating layer 5, which have a condensation prevention function, are applied to the inner surfaces, etc., condensation is difficult to occur.

[0075] That is, the dew condensation prevention function of the first covering layer 4 and the second covering layer 5, combined with the fact that dew condensation is concentrated in the uncovered area 6 and then discharged, reduces dew condensation inside the building 2.

[0076] The first coating layer 4 and the second coating layer 5 each have at least a first layer. Fig. 2 is a schematic diagram showing this first layer. The first coating layer 4 includes a first layer 41, and the second coating layer 5 includes a first layer 51.

[0077] The first layer 41 includes a plurality of hollow ceramics 101 and a resin binder 102 that connects the plurality of hollow ceramics 101 together. The hollow ceramics 101 included in the first layer 41 convert heat inside the building 2 into far infrared rays. This makes it possible to prevent water vapor from adhering to the wall surfaces 21, the floor surface 23, and the like and causing condensation. Furthermore, the converted far infrared rays are emitted, making it possible to reduce the size of the water molecules of the moisture inside the building 2. The reduction in the size of the water molecules also makes it possible to prevent condensation on the wall surfaces 21, the floor surface 23, and the like.

[0078] The hollow ceramics 101 have an internal space, and can reflect heat in the internal space, convert it into far infrared rays, and radiate it. In addition, the resin binder 102 is preferably an acrylic resin binder. By using an acrylic resin, the first fire-resistant layers 41, 51 can be made lighter.

[0079] In this manner, the presence of the first layer 41 in the first covering layer 4 can suppress the occurrence of condensation.

[0080] Similarly, the second coating layer 5 applied to the water circulation device 3 can also suppress the occurrence of condensation due to the presence of the first layer 51.

[0081] Here, it is also preferable that the hollow ceramic 101 contains a metal oxide. By containing such a metal oxide, heat can be efficiently converted into far infrared rays. Here, the metal oxide contains at least one of aluminum oxide (Al2O3), magnesium oxide (MgO), ferric oxide (Fe2O3), sodium oxide (Na2O), potassium oxide (K2O), titanium oxide (TiO2), cerium oxide (CeO2), silicon dioxide (SiO2), and antimony trioxide (Sb2O3).

[0082] By including these metal oxides, the hollow ceramics 101 can convert heat into far-infrared rays efficiently and reliably. The metal oxides promote diffuse reflection in the internal space 510 and generate far-infrared rays in the process of diffuse reflection. In this way, the first layers 41 and 51 including the hollow ceramics 101 containing metal oxides can suppress condensation caused by water vapor.

[0083] The second coating layer 5 has a second layer on the outside of the first layer 51. FIG. 3 is a schematic diagram of the second coating layer in the first embodiment of the present invention. The second layer 52 is on the outside of the first layer 51. The second layer 52 contains a plurality of silica particles 111 and a resin binder 112 that connects the plurality of silica particles 111 together. The silica particles 111 are porous. The resin binder 112 is preferably an acrylic resin binder.

[0084] The first covering layer 4 may also be provided with this second layer on the outside of the first layer 41. This may be determined according to the cost, the structure and size of the building 2, and the like.

[0085] The silica 111 contained in the second layer 52 absorbs moisture and water vapor inside the building 2. The silica 111 is porous, and can absorb moisture and water vapor in the voids of the porosity. The silica 111 has porous properties, and the voids present due to the porosity can absorb moisture and water vapor. In addition, the silica 111 can release the absorbed humidity in response to temperature and humidity changes inside the building 2. That is, the silica 111 can absorb and release moisture.

[0086] Due to this moisture absorption ability, the second layer 52 can reduce the humidity inside the building 2 and reduce condensation inside the building 2 (reducing the amount of moisture such as water vapor inside the building). In particular, the water circulation equipment 3 through which water circulates has a low dew point and is prone to condensation, but the second covering layer 5, which includes the first layer 51 and the second layer 52, makes condensation less likely to occur. Accordingly, the inner wall 21 on which the first covering layer 4 is applied also becomes less likely to condense.

[0087] Furthermore, as the silica 111 absorbs and releases moisture, the diameter of the silica 111 increases or decreases slightly. In this case, the resin binder 112 is an acrylic resin, so it can flexibly accommodate this increase or decrease. This is because acrylic resin has flexibility and can absorb any increase or decrease in the diameter of the silica 111.

[0088] In this way, the second layer 52 contains silica 111, and the silica 111 can absorb moisture and water vapor, thereby relatively lowering the humidity inside the building 2 and preventing condensation. On the other hand, in the uncovered area 6, condensation is relatively more likely to occur due to the decrease in temperature caused by water circulation in the water circulation equipment 3. As a result, moisture is discharged from the discharge section 8, the amount of moisture (including water vapor) inside the building 2 decreases, and condensation on the inner wall 21 and the like is further suppressed.

[0089] In this way, the moisture content inside the building 2 is reduced by the moisture absorption by the silica 111 of the second layer 52, making it difficult for condensation to form inside the building 2. In particular, in the area where the second layer 52 is provided, condensation is difficult to form.

[0090] In winter and other times, the temperature inside building 2 may be higher than the temperature outside building 2. Because the outside temperature is low, the temperature inside building 2 is relatively high. Figure 3 shows this state. In the prior art, condensation would form inside building 2 (on the walls 21, the surfaces of water circulation equipment 3, etc.) in such a state.

[0091] As described above, the silica 111 has absorbed moisture and is in a state of containing moisture. Even if the silica 111 has absorbed moisture, moisture is contained inside the silica 111 (inside the porous voids). In relation to the temperature inside the building 2 and the amount of moisture (humidity) contained in the silica 111, the silica 111 may also reach a dew point. When the dew point is reached, the moisture absorbed by the silica 111 may turn into water droplets and condense on the second layer 52.

[0092] Here, the hollow ceramics contained in the first layer 51 reflects the applied heat (conducted heat) and returns it as reflected heat. As shown by the arrows in Fig. 3, the first layer 51 returns the reflected heat toward the inside of the building 2. This reflected heat also hits the second layer 52, causing the temperature of the second layer 52 to rise. That is, the temperature of the silica 111 contained in the second layer 52 also rises.

[0093] That is, since heat is imparted to the silica 111 from the first layer 51, the temperature of the silica 111 (second layer 52) is always maintained higher than the air temperature inside the building 2. As a result, the silica 111 (second layer 52) does not reach the dew point. Reaching of the dew point is suppressed. Reflected heat is constantly generated from the first layer 51, and the temperature of the second layer 52 is always maintained higher than the air temperature inside the building 2. That is, in the second layer 52, a state in which reaching of the dew point is suppressed is maintained.

[0094] The state in which the second layer 52 is prevented from reaching the dew point is maintained, and the silica 111 absorbs moisture, so that the amount of moisture (including water vapor) inside the building 2 decreases and the dew point is not reached. This prevents condensation in the areas of the first coating layer 4 and the second coating layer 5 inside the building 2.

[0095] On the other hand, condensation concentrates in the uncoated region 6. This is because water vapor that cannot be absorbed by the silica 111 condenses in the coated region 6, which cannot absorb moisture and has a lower dew point than the coated region. In other words, water vapor in excess of the moisture absorption continues to condense in the uncoated region 6 and be discharged, and in parallel with this, moisture absorption in the second layer 52 (and suppression of reaching the dew point) continues, thereby suppressing condensation inside the building 2.

[0096] In particular, when the temperature outside the building 2 is lower than the temperature inside the building 2, condensation is likely to occur on the inner walls 21 and the like, but even in this case, condensation is suppressed by the above-mentioned mechanism.

[0097] The second layer 52 may be provided not only in the second covered region 5 but also in the first covered region 4. This further enhances the suppression of condensation due to moisture absorption by the silica 111 in the first covered region 4 as well.

[0098] Furthermore, the hollow ceramics contained in the first layers 41, 51 convert the heat inside the building 2 into far infrared rays and radiate them. This radiation of far infrared rays can reduce the size of the water molecules of moisture inside the building 2. As the water molecules become smaller, moisture absorption by the silica 111 becomes easier, and the moisture absorption ability of the silica 111 increases. This is because the porous region of the silica 111 can more easily absorb moisture.

[0099] This also helps to further suppress condensation inside building 2.

[0100] As described above, condensation is less likely to occur in the covered areas formed by the first covering layer 4 and the second covering layer 5, and condensation tends to concentrate in the uncovered areas 6. The condensation that has concentrated in the uncovered areas 6 is discharged as moisture from the discharge section 8 to the outside of the building 2, and excess moisture inside the building 2 (moisture above the dew point saturation level) is released to the outside. This reduces the humidity inside the building 2.

[0101] In reality, water vapor is continuously generated inside the building 2 by the water circulation equipment 3, but concentrated condensation and discharge in the uncovered area 6 also continue, so that an equilibrium state just before the dew point saturation is maintained. As described above, moisture absorption by the silica 111 and the reflected heat of the first layer 51 also suppress the second layer 52 from reaching the dew point.

[0102] As a result, condensation is suppressed in areas other than the uncovered area 6. This reduces deterioration of the building 2. Durability is also improved.

[0103] (Uncovered Area) The uncovered area 6 is provided in the water circulation equipment 3. The uncovered area 6 is an area where condensation is intentionally concentrated. For this reason, it is preferable to provide the uncovered area 6 on a part of the surface of the water circulation equipment 3. Since water continues to circulate inside the water circulation equipment 3, the internal temperature is always kept low. This is because the temperature is likely to be lower than inside the building 2, and condensation is likely to occur in the uncovered area 6.

[0104] Condensation is less likely to occur in the areas where the first coating layer 4, the second coating layer 5, etc. are applied, and the internal temperature of the uncoated area 6 is low, so that condensation is more likely to occur in the uncoated area 6. As a result, water vapor inside the building 2 condenses and is ultimately discharged to the outside.

[0105] Here, it is also preferable that the uncovered area 6 is provided in a portion of the water circulation equipment 3 that is located at the bottom inside the building 2. This is because water vapor and the like tend to accumulate at the bottom, and being located at the bottom can promote condensation.

[0106] Here, the water circulation equipment 3 includes at least one of water supply and sewerage pipelines, water pumps, and drainage pipelines. Of course, it can be other than these. This is because water-related facilities, by their very nature, often have these devices. Also, the installation of these devices increases the humidity inside the building 2, making it easy for condensation to form.

[0107] The present invention addresses the characteristics of such water-related facilities.

[0108] The water circulation device 3 lowers the device temperature by continuously circulating water. The above-mentioned water supply and sewerage pipelines are typical examples of this. This makes it easier for condensation to form in the uncovered area 6.

[0109] (Condensation recovery section) The condensation collection unit 7 collects the moisture condensed in the uncovered area 6. As described above, it is sufficient if the condensation can be collected by osmotic pressure, capillary action, or the like, such as metal pieces, pipes, mesh members, etc. The moisture collected by the condensation collection unit 7 is discharged from the discharge unit 8 to the outside of the building 2.

[0110] (Discharge section) The discharge unit 8 discharges the collected moisture to the outside of the building 2. At this time, it is also preferable to discharge the moisture to the outside from the floor surface of the building 2. This is because, since it is water, discharging it by dropping it downward leads to reliable discharge.

[0111] The exhaust section 8 is provided with a duct that penetrates the floor surface, making it easier to exhaust the water to the outside. By enabling smooth exhaust to the outside, the water that has condensed intensively in the non-covered area 6 can be continuously exhausted to the outside.

[0112] (Water-related facilities) The condensation reducing device 1 is used in water-related facilities.

[0113] The water-related facility is at least one of a water purification facility, a sewage facility, a pressure reducing valve room, a purification tank facility, and a water supply facility. Of course, it is not limited to these. This is because such facilities usually have water circulation equipment 3 inside a closed building 2. In such water-related facilities, water vapor is continuously generated inside the building 2, and condensation can easily occur.

[0114] As described above, the condensation reduction device 1 can reduce condensation inside the building 2 in which the water circulation equipment 3 is installed, and prevent the building 2 from deteriorating.

[0115] For example, if the building 2 is made of wood, corrosion of wooden building materials due to condensation can be suppressed. Alternatively, if the building 2 is made of concrete, condensation will cause the concrete to become neutral. If neutralization progresses, acidification will progress, leading to deterioration.

[0116] The condensation reduction device 1 can suppress these deteriorations and increase the durability of the building 2 of the water-related facility.

[0117] (Embodiment 2)

[0118] Next, a description will be given of embodiment 2. In embodiment 2, the results of a confirmation experiment that confirmed the condensation prevention effect when the first coating layer 4 and the second coating layer 5 were applied to an actual water purification facility will be described.

[0119] Fig. 4 is a photograph of a water purification facility where an experiment was conducted in the second embodiment of the present invention. The water purification facility 200 in Fig. 4 used in the experiment is an actual facility located in Aizu, Fukushima Prefecture. The first coating layer 40 described in the first embodiment was applied to the inner wall of the building of the water purification facility 200 in Fig. 4. The first coating layer 40 applied here includes only the first layer described in the first embodiment.

[0120] 5 is a photograph of the inner wall of the water purification facility 200 after the first coating layer was applied. In this manner, the effect of the first coating layer 40 was confirmed during the winter season or other seasons when condensation is likely to occur, when the water purification facility 200 is in operation, with the first coating layer applied to the wall surface.

[0121] The presence or absence of condensation on this wall surface was confirmed by visual inspection. In the visual inspection by the inventor, no condensation was found on the wall surface to which the first coating layer 40 was applied. This confirmed that the first coating layer 40 reduces condensation on the wall surface.

[0122] The suppression of condensation by the first covering layer 40 described in the first embodiment was also confirmed by experiments.

[0123] 6 and 7 are photographs showing the state in which a second coating layer is applied to the water circulation equipment in the second embodiment of the present invention. In Fig. 6 and Fig. 7, a pipe 30 is shown as the water circulation equipment. Water circulates inside the pipe 30, and this water circulation makes the surface of the pipe 30 at a lower temperature than the air temperature inside the building 2. In addition, water vapor is generated.

[0124] A second coating layer 50 is applied to a coated region that is a part of the pipeline 30. The second coating layer 50 is the second coating layer 5 described in the first embodiment. That is, the first layer and the second layer are provided, and the occurrence of condensation can be suppressed by the respective functions of the first layer and the second layer.

[0125] Since water is constantly circulating in the pipe 30, the surface temperature of the pipe 30 is relatively low. For this reason, condensation is more likely to occur on the surface of the pipe 30 than on the wall surface, etc. In response to this, the second covering layer 50 is provided, and this second covering layer 50 suppresses condensation on the surface of the pipe 30.

[0126] The mechanism of condensation suppression is as explained in embodiment 1. That is, moisture absorption by silica and reflected heat from the first layer increase the dew point, making condensation less likely to occur.

[0127] The pipeline 30 is provided with an uncoated region 60. As shown in Figures 6, 7, etc., the uncoated region 60 is a region where the second coating layer 50 is not applied.

[0128] The inventor first performed a visual inspection. That is, the inventor visually confirmed the condensation state in the area of ​​the pipeline 30 where the second coating layer 50 was applied and in the uncoated area 60. As a result of the visual inspection, condensation was confirmed in the uncoated area 60, but no condensation was confirmed in the second coating layer 50.

[0129] First, through visual inspection, it was confirmed that the second coating layer 50 suppresses condensation and allows condensation to be concentrated in the uncoated area 60.

[0130] Next, the inventors recovered the surface moisture and physically confirmed whether the moisture had increased due to surface condensation.

[0131] 8 is a photograph showing an experimental state for comparing the increase in surface moisture in the second embodiment of the present invention. The experimental state is shown for measuring the amount of condensed moisture on the surfaces of the non-covered area 60 and the second covering layer 50. The surfaces of the non-covered area 60 and the second covering layer 50 are wiped with a moisture absorbing cloth to absorb the surface moisture. The weight of the moisture absorbing cloth before and after this absorption is measured, and the weight change indicates the occurrence of surface moisture, i.e., condensation. This weight change is measured.

[0132] The upper row of the photographs in Fig. 8 shows the moisture amount measurement in the uncoated area 60, and the lower row shows the moisture amount measurement in the second coating layer 50. First, as shown on the left side, the weight of the moisture absorbing cloth is measured in advance. At this stage, the weight was 2 g in both the uncoated area 60 and the second coating layer 50.

[0133] Next, as shown in the center, the moisture absorbing cloth is pressed against the uncovered area 60 and the second covering layer 50, respectively, to absorb the surface moisture. In other words, the condensation that has formed on the surface is absorbed. Furthermore, as shown on the far right, the weight of the moisture absorbing cloth after absorbing the moisture is measured to confirm the weight change. If the weight increases, it indicates that condensation has occurred, and if the weight does not change, it indicates that condensation has not occurred. Furthermore, the degree of weight increase indicates the degree of condensation.

[0134] 8, in the uncoated region 60, the weight increases from 2 g to 4 g, whereas in the second coated layer 50, the weight remains at 2 g.

[0135] From these results, it is found that no condensation occurs in the second coating layer 50, even when the amount of moisture is measured. On the other hand, it is found that condensation occurs in the uncoated area 60, as the amount of moisture increases from 2 g to 4 g.

[0136] It was confirmed that the condensation state is completely different between the second coating layer 50 and the uncoated area 60 in the same pipe 30. That is, the second coating layer 50 suppresses condensation, and the condensation concentrates in the uncoated area 60. If the condensation concentrated in the uncoated area 60 is discharged to the outside as moisture, the moisture content of the entire building can be continuously suppressed.

[0137] As described above, the effectiveness of the condensation reducing device of the present invention was confirmed through experiments in actual water-related facilities.

[0138] The condensation reduction devices for water-related facilities described above in the first and second embodiments are merely examples for illustrating the gist of the present invention, and include modifications and alterations that do not depart from the gist of the present invention. [Explanation of symbols]

[0139] 1 Condensation reduction device 2. Building 21 Wall 22 Ceiling surface 23 Floor 3 Water circulation equipment 30 conduit 4 First coating layer 5 Second coating layer 6 Coverage Area 7 Condensation recovery section 8 Discharge section

Claims

1. A condensation reduction device for a water-related facility having a building in which a water circulation device is installed, A first coating layer applied to at least a portion of the wall surfaces, ceiling surfaces, and floor surfaces inside the building; A second coating layer is applied to a coating area excluding a part of the water circulation device; a non-covered area other than the covered area of ​​the water circulation device; A condensation recovery unit that recovers condensation generated in the uncovered area as moisture; A discharge unit that discharges the moisture collected by the condensation collection unit to an outside of a building, A condensation reduction device for water-related facilities, wherein the first coating layer and the second coating layer have a condensation prevention function.

2. The first coating layer and the second coating layer have at least a first layer, The first layer is A plurality of hollow ceramics; The condensation reducing device for water-related facilities according to claim 1 , further comprising a resin binder that connects the plurality of hollow ceramics together.

3. The second coating layer has a second layer on the outside of the first layer, The second layer includes a plurality of silica particles and a resin binder that connects the plurality of silica particles to each other, The condensation reducing device for water-related facilities according to claim 2 , wherein the silica is porous.

4. The condensation reducing device for water-related facilities according to claim 3 , wherein the resin binder includes an acrylic resin binder.

5. The condensation reducing device for water-related facilities according to claim 3 , wherein the silica contained in the second layer absorbs moisture and water vapor inside the building.

6. When the temperature outside the building is lower than the temperature inside the building, The hollow ceramics included in the first layer reflects heat conducted from the inside of the building back to the inside of the building as reflected heat, The reflected heat increases the temperature of the second layer; The condensation reducing device for water-related facilities according to claim 5 , wherein the device can suppress the dew point from being reached in relation to the amount of moisture absorbed by the silica and the temperature of the silica.

7. The condensation reducing device for water-related facilities according to claim 6 , wherein condensation inside the building can be suppressed by suppressing moisture absorption by the silica and the silica from reaching its dew point.

8. The device for reducing condensation in water-related facilities according to claim 2 , wherein the hollow ceramics of the first layer convert heat inside the building into far infrared rays and radiate the far infrared rays, thereby reducing the size of water molecules inside the building.

9. Condensation is unlikely to occur in the region covered by the first covering layer and the second covering layer, The condensation reducing device for water-related facilities according to claim 1 , wherein condensation concentrates in the uncovered area.

10. The condensation reduction device for water-related facilities according to claim 9, wherein the condensation concentrated in the uncovered area is discharged as moisture to the outside of the building by the discharge section, thereby reducing humidity inside the building.

11. The condensation reduction device for water-related facilities according to claim 1 , wherein the uncovered area is provided at a lower portion inside the building.

12. The water circulation device keeps the temperature of the device low by continuously circulating water. The condensation reducing device for water-related facilities according to claim 1 , wherein condensation is facilitated in the uncovered areas.

13. The condensation reducing device for water-related facilities according to claim 12, wherein the water circulation equipment includes at least one of a water supply and sewerage pipe, a water pump, and a drainage pipe.

14. The condensation reducing device for water-related facilities according to claim 1 , wherein the exhaust unit exhausts the collected moisture from a floor surface of the building to the outside of the building.

15. The water-related facility condensation reducing device according to claim 1 , wherein the water-related facility is at least one of a water purification facility, a sewage facility, a pressure reducing valve room, a purified water tank facility, and a water supply facility.

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