JP5264344B2 - Water supply / treatment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water supply and treatment system which produces and supplies pure water and reduces the amount of metal ions in used wastewater to prevent generation of a metal soap to prevent a bad influence of the metal soap on a wastewater passage and the like, and reuses the wastewater and effectively utilize heat used for pure water generation to suppress a consumption of new water and energy for water supply. <P>SOLUTION: Pure water is generated from warm water, warmed by a heater, using an evaporator and a condenser, so that the pure water can be used for a shampoo, which can make the amount of the metal ions in the wastewater very small, suppressing the generation of the metal soap in the wastewater to enable preventing the bad influence of the metal soap on the wastewater passage. Remaining unevaporated warmed water in the evaporator, cooling water whose temperature has been increased by a heat exchange in the condenser, and the like are used as water heated in the heater, which eliminates continuous supply of a large amount of heat by the heater, saving energy consumption and suppressing the amount of water newly supplied from outside to reduce water consumption. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a water supply / treatment system that manufactures warm water of pure water and supplies it for various uses such as shampooing, and purifies the generated waste water and reuses it for the production of pure water.

  Permanent wave processing in hairdressing and beauty (hereinafter abbreviated as “perm”, used as a general term including processing that does not make waves such as so-called straight permanents). However, after the perm, the perm solution needs to be washed away from the hair, and if necessary, the hair is washed with water or warm water while using a detergent. It was.

  In general, tap water is used for washing hair and warm water, but tap water alone has a weak detergency against permanent liquid, and the unique odor of permanent liquid remains for a long time. Various ideas for suppressing the occurrence have been proposed in the past, and an example thereof is disclosed in Japanese Patent Application Laid-Open No. 9-28447.

This conventional hair washing apparatus is intended to deodorize by supplying ozone water obtained by mixing ozone gas into water and using it for washing hair.
Japanese Patent Laid-Open No. 9-28447

  Conventional cleaning of the permanent liquid is performed as described above, and tap water is used as the water in which the ozone gas is mixed in the apparatus disclosed in the patent document. As described above, tap water has been mainly used as cleaning water in the past. Therefore, when the perm solution or the detergent for removing the perm solution is washed away with water, in addition to the metal ions contained in the perm solution, In particular, metal ions contained in tap water react with soaps (fatty acid salts, etc.) contained in permanent liquids and detergents, resulting in metal soaps that are not soluble in water. There was a problem that the flow of the wastewater was delayed, or it flowed out in a state where the pigment component or odor component in the wastewater was taken in and adversely affected the surrounding environment.

  The present invention has been made to solve the above-mentioned problems. Manufacture and supply pure water to reduce the amount of metal ions in the wastewater after use to prevent the occurrence of metal soap and adversely affect the drainage channel, etc. In addition to preventing wastewater, the purpose is to provide a water supply and treatment system that can reduce the consumption of both fresh water and energy related to water supply by reusing wastewater and effectively using the heat used to generate pure water. To do.

  The water supply / treatment system according to the present invention is supplied with a heater that heats the supplied water to obtain hot water at a predetermined temperature, and a part of the hot water obtained by the heater. An evaporator for evaporating, a condenser for condensing the vapor phase water evaporated in the evaporator with cooling water to condense and obtaining pure water not containing metal ions, and water heated by the heater Waste water generated by using the pure water heat exchanger for obtaining warm pure water by heat-exchanging the remaining warm water not supplied to the evaporator with the pure water obtained by the condenser, and the warm pure water And at least a tap water supply source for supplying tap water to be at least a part of the cooling water, so that it cannot be evaporated by the evaporator. The temperature increased after exchanging heat with the hot water remaining in the liquid phase in the condenser. The reject water, the hot water after heat exchange with the pure water in the pure water heat exchanger, and the tap water supplied from the tap water supply source are combined as water to be heated and supplied to the heater. Then, the purified water exiting the water purifier is introduced into the condenser as the cooling water together with the tap water supplied from the tap water supply source.

  As described above, according to the present invention, pure water is generated from warm water heated by a heater using an evaporator and a condenser, and the pure water is supplied to be usable, so that it is contained in the waste water after use. The amount of metal ions can be extremely reduced, the occurrence of metal soap in the drainage can be suppressed, and the adverse effects of the metal soap on the drainage channel can be prevented. In addition, the heat generated by the heater is also used for heating pure water, and cooling water whose temperature has risen due to heat exchange in the condenser or hot water remaining without being evaporated by the evaporator is heated by the heater. By using it as water, it is possible to appropriately recover the heat generated by the heater, and it is not necessary to continuously input a large amount of heat with the heater, and energy consumption can be reduced. Furthermore, the waste water can be purified and reused for cooling water, pure water production, and pure water heating, and the amount of water newly replenished from outside can be reduced to reduce water consumption.

  Further, the water supply / treatment system according to the present invention is disposed on the rear side of the pure water heat exchanger as necessary, and ozone generated by a predetermined ozone generator is mixed with the pure water. An ozone water production device for producing water is provided.

  As described above, according to the present invention, an ozone water producing device is provided in the pure water flow path, ozone is mixed into the pure water to form ozone water, and this is used for shampooing or the like. In the case of shampooing, it is possible to neutralize the perm solution properly to improve the condition of the hair after perm, and the drainage can be close to neutral, reducing the burden on the water purifier and reducing the water purification capacity. Maintenance can be achieved and water purification can be performed more efficiently.

  In addition, the water supply / treatment system according to the present invention allows the cooling water to exchange heat with another cooling medium on the upstream side of the cooling water flow path in the condenser to set the cooling water condenser inlet temperature as necessary. Another heat exchanger to be lowered is provided.

  As described above, according to the present invention, the heat exchanger for exchanging heat between the cooling water and the predetermined cooling medium is disposed in the front stage of the condenser, and the condenser water is condensed by lowering the condenser inlet temperature. Condensation of vapor phase water in the condenser can be efficiently advanced by increasing the temperature difference between the vapor phase water and cooling water, without increasing the pure water yield in the condenser or changing the pure water yield. It is possible to reduce the size of the condenser.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG. In the present embodiment, an example of a system that supplies water or warm water for cleaning the permanent liquid after perm and treats waste water generated by the cleaning will be described. FIG. 1 is a block diagram of a water supply / treatment system according to this embodiment.

  In FIG. 1, the water supply / treatment system 1 according to the present embodiment supplies a heater 10 that heats the supplied water to obtain hot water at a predetermined temperature, and supplies part of the hot water obtained by the heater 10. The evaporator 20 for evaporating the hot water in the reduced pressure space, the condenser 30 for condensing the water in the vapor phase evaporated by the evaporator 20 by heat exchange with cooling water, and obtaining the pure water, and the heater 10 Heat of the remaining water that is not supplied to the evaporator 20 among the water heated in step 1 is exchanged with the pure water obtained in the condenser 30 to heat the pure water, and this From ozone water manufacturing device 50 which introduces ozone into pure water heated by a heat exchanger for pure water and makes ozone water, and from waste water after the ozone water is used for washing hair in a predetermined washing unit 100 , A water purifier 60 to obtain purified water by removing pollutants, and a water purifier A reverse osmosis membrane type water purifier 70 which is disposed downstream of 0, a configuration and a tap water supply source 80 for supplying tap water to be at least part of the cooling water.

  The heater 10 is a known boiler that obtains hot water by heating water supplied into the apparatus with heat generated by combustion of a predetermined fuel, and the water to be heated can be evaporated by an evaporator 20 on the rear stage side. Increase to a certain temperature.

  The evaporator 20 is a well-known device that efficiently evaporates water heated to a predetermined temperature on the previous stage side into a container whose pressure is reduced to the saturation pressure or less to obtain water vapor. A part of the hot water is directly supplied, and the hot water is evaporated to obtain gas-phase water containing almost no impurities. The evaporator 20 can be any flash evaporation mechanism such as a multistage flash type or a spray flash type. The liquid-phase water remaining without being completely evaporated by the evaporator 20 is discharged outside the evaporator 20 and returned to the heater 10.

  The condenser 30 circulates water in the vapor phase evaporated by the evaporator 20 in one of the flow paths separated via the internal heat transfer section, and circulates cooling water in the other flow path, The gas-phase water and the cooling water are subjected to heat exchange via the gas to condense the gas-phase water, and the structure itself as a heat exchanger is a known configuration. By condensing vapor phase water with the condenser 30, pure water containing almost no impurities can be obtained.

  On the downstream side of the gas phase side flow path in the condenser 30, a pure water tank 31 that stores a predetermined amount of pure water obtained by the condenser 30, and pure water that has been discharged from the pure water tank 31 is stored in a predetermined amount. Pumps 32 that are sent to the pure water heat exchanger 40 at the supply pressure are respectively disposed. The pure water tank 31 is configured to be capable of storing at least the amount of water used for one shampooing, storing the pure water condensed by the condenser 30, and allowing the water amount to flow continuously to the subsequent stage. On the other hand, the cooling water side flow path in the condenser 30 is connected to the inlet side of the heater 10, and the cooling water whose temperature has been increased by condensing vapor phase water flows into the heater 10.

  The pure water heat exchanger 40 includes the pure water supplied from the pump 32 to one flow path in a known heat exchanger, and the evaporator 20 out of hot water obtained by the heater 10 in the other flow path. The remaining warm water that is not supplied to the water is circulated to exchange heat, and pure water is heated with warm water from the heater 10 and adjusted to a temperature suitable for use in hair washing by the washing unit 100. . The other flow path is connected to the inlet side of the heater 10, and the hot water whose temperature has been reduced by heat exchange with pure water flows into the heater 10 again.

  The pure water temperature in the pure water heat exchanger 40 is adjusted by changing the area where the hot water is in contact with the heat transfer surface that transfers heat to the pure water by changing the flow path on the hot water side. This is a mechanism for adjusting the temperature to obtain an appropriate temperature state of pure water. When pure water is not heated, the flow path of the hot water is switched so that the hot water does not pass through the pure water heat exchanger 40 and is returned to the heater 10 as it is.

  The ozone water producing device 50 mixes ozone generated by a predetermined ozone generator 51 with pure water that has passed through the heat exchanger 40 for pure water to produce ozone water. The pure water reaches the cleaning unit 100 equipped with a currant, a shower head, etc. in a state of being ozone water via the ozone water production device 50, and is used for hair washing or the like. By using ozone water, it is possible to suppress the adhesion and propagation of various bacteria due to its bactericidal action, and in the case of shampooing in perm, the perm liquid can be properly neutralized with ozone to improve the hair condition after perm, Further, the drainage can be brought into a neutral state, and the purification process in the water purifier 60 can be made more efficient.

  As the ozone generator 51, any one using a known silent discharge method, creeping discharge method, ultraviolet irradiation method, or the like may be used. A part of the ozone generated by the ozone generator 51 can be used for other purposes, for example, a so-called ozone perm that promotes the effect of perm by contacting ozone with hair when performing perm.

  In the water purifier 60, the ozone water that has exited the ozone water producing device 50 is passed through drainage after being used for washing or the like in the washing section 100, and the contaminants are removed by an internal filter, and the purified water is removed. To get. A water storage tank 61 is disposed between the cleaning unit 100 and the water purifier 60, and the waste water discharged from the cleaning unit 100 is temporarily stored in the water storage tank 61, and decomposition and neutralization of components such as permanent liquid by residual ozone in the waste water. And the flow rate of the waste water purifier 60 is adjusted.

  The reverse osmosis membrane type water purifier 70 is a known water purifier using a reverse osmosis membrane, and is disposed on the rear stage side of the water purifier 60, and the purified water exiting the water purifier 60 is passed through to contaminate the water. The amount of substance is further reduced to the same water quality as tap water. The purified water exiting the reverse osmosis membrane water purifier 70 joins with the tap water supplied from the tap water supply source 80 and is sent to the condenser 30 as cooling water.

  The tap water supply source 80 supplies tap water that is part or all of the water supplied to the heater 10 and tap water that is part or all of the cooling water. Immediately after the system is started, water that has passed through each device in the system does not return to the inlet side of the heater 10 or the inlet side of the condenser 30, so water introduced into the heater 10 or cooling water introduced into the condenser 30. As for all, tap water is used. When a certain period of time elapses after the system is started, the water that has passed through each device in the system returns to the inlet side of the heater 10 or the inlet side of the condenser 30, so that the amount of tap water introduced can be reduced.

  Next, the operation of the water supply / treatment system according to the present embodiment will be described. First, immediately after the system is activated, only tap water supplied from the tap water supply source 80 is supplied to the heater 10 and is introduced into the condenser 30 as cooling water.

  The heater 10 burns the fuel, heats the water supplied with the generated heat, and obtains hot water. The warm water leaves the heater 10, partly toward the evaporator 20 and the rest toward the pure water heat exchanger 40.

  When the hot water reaches the evaporator 20, a part of the hot water evaporates in the decompressed evaporator 20, and becomes vapor phase water. The water in the vapor phase is appropriately separated from mist and the like, then exits the evaporator 20 and is introduced into one flow path of the condenser 30. On the other hand, the hot water that is not evaporated and remains in the liquid phase is discharged out of the evaporator 20 and goes toward the inlet side of the heater 10.

  In the condenser 30, the cooling water having a low temperature is introduced into the other flow path separating the heat transfer section with respect to the one flow path into which the vapor phase water is introduced, thereby cooling the vapor phase water. It is condensed by exchanging heat with water and becomes pure water containing almost no impurities. The pure water is discharged from the condenser 30, temporarily stored in the pure water tank 31 on the rear stage side, and then sent to the pure water heat exchanger 40 via the pump 32. Moreover, the cooling water which received the heat from the pure water side condensed in the condenser 30 and heated up is discharged | emitted from the condenser 30, and goes to the heater 10 inlet side.

  In the heat exchanger 40 for pure water, the high-temperature hot water and pure water immediately after leaving the heater 10 are adjusted while adjusting the amount of heat transfer corresponding to the pure water temperature obtained by the cleaning unit 100 provided on the rear side. Heat exchange, and the temperature of pure water is raised. The heated pure water becomes warm pure water, exits the pure water heat exchanger 40, and reaches the ozone water production device 50. In addition, as a result of raising the temperature of pure water by heat exchange with pure water in the heat exchanger for pure water 40, the hot water whose temperature has decreased is discharged from the heat exchanger for pure water 40 and heads toward the inlet side of the heater 10. It will be.

  The warm pure water is mixed with ozone in the ozone water producing device 50 to become ozone water, and is then supplied to the washing unit 100 for use in hair washing or the like. The drainage after the use of shampoo contains components such as a perm solution, a shampoo for removing the perm solution, a conditioner for adjusting the condition of the hair, and a coloring agent for hair dyeing in addition to moisture. Since pure water contains no metal ions, the amount of metal soap generated in the wastewater after use can be extremely reduced.

  The drainage discharged from the cleaning unit 100 through use in the cleaning unit 100 is temporarily stored in the water storage tank 61 and then introduced into the water purifier 60. In the water purifier 60, contaminants such as permanent liquid components are removed from the waste water, and purified water is obtained. In this water purifier 60, since the amount of metal soap contained in the waste water is small, clogging of the filter is unlikely to occur, and the purification ability can be reliably maintained and the water purification process can be performed efficiently.

  The purified water leaves the water purifier 60 and reaches the reverse osmosis membrane type water purifier 70, where fine contaminants that have not been removed by the water purifier 60 are removed, and the cleanliness is equivalent to tap water. And the purified water which came out of the reverse osmosis membrane type water purifier 70 merges with a tap water in the cooling water flow path upstream from the condenser 30, and is introduce | transduced into the condenser 30 as cooling water. Thus, the amount of tap water used for cooling water can be reduced because purified water is recirculated as a part of cooling water.

  Further, on the inlet side of the heater 10, the warm water exiting the evaporator 20, the warm cooling water exiting the condenser 30, and the warm water exiting the pure water heat exchanger 40 are combined and supplied to the heater 10. Therefore, the amount of tap water supplied to the heater 10 can be reduced by the amount of recirculation of the warm water.

  Thereafter, while the hot water discharged from each device is recirculated to the inlet side of the heater 10 and the used purified water is recirculated to the inlet side of the condenser 30, the pure water is generated and exchanged in the same manner as described above, and the waste water is purified. Each process such as processing is repeated. As the operation continues, the heater 10 increases the ratio of the warm water to be supplied in the supplied water, and the temperature of the supplied water is increased. The amount of heat can be reduced, and consumption of fuel burned by the heater 10 can be suppressed.

  As described above, in the water supply / treatment system according to the present embodiment, pure water is generated from the warm water warmed by the heater 10 using the evaporator 20 and the condenser 30, and this pure water is used for hair washing or the like. Therefore, the amount of metal ions contained in the waste water can be extremely reduced, the generation of metal soap in the waste water can be suppressed, and the adverse effect of the metal soap on the drain channel can be prevented. Further, the heat generated in the heater 10 is also used for heating pure water, and the cooling water whose temperature has been increased by heat exchange in the condenser 30 or the hot water remaining without being evaporated in the evaporator 20 is used as the heater. Since it is used as water heated at 10, the heat generated by the heater 10 can be appropriately recovered, and it is not necessary to continuously input a large amount of heat at the heater 10, and energy consumption can be reduced. Further, the waste water can be purified and reused for cooling water, pure water production, and pure water heating, and the amount of water newly replenished from outside can be reduced to reduce water consumption.

  In the water supply / treatment system according to the embodiment, pure water heated through the pure water heat exchanger 40 is supplied to the washing unit 100 after being mixed with ozone, and used for washing hair or the like. However, other configurations such as using pure water as cleaning water in the cleaning industry or using it as water for washing rice may also be used.

  Further, in the water supply / treatment system according to the embodiment, the tap water from the tap water supply source 80 which is the coldest water in the system or the mixed water of the tap water and the purified water is directly used as the cooling water in the condenser 30. However, the present invention is not limited to this, and a heat exchanger that lowers the cooling water temperature by exchanging heat between the cooling water and a predetermined cooling medium in advance in the cooling water passage on the upstream side of the condenser, for example, It is also possible to install a cooling tower, a chiller, etc., and let the cooling water first pass through such a heat exchanger to lower the temperature by heat exchange and then flow into the condenser 30. Since the temperature difference with the vapor phase water to be condensed is lowered by lowering the water temperature, the vapor phase water can be efficiently condensed, increasing the yield of pure water in the condenser, or the pure water yield. Without changing the condenser It can be or downsized.

  In the water supply / treatment system according to the above embodiment, the heater 10 heats the total amount of water for the evaporator 20 and the pure water heat exchanger 40. Not limited to this, when pure water is used at a low water temperature, or when water is not used in the cleaning section, only the amount of water that is directed to the evaporator is heated by the heater, and is obtained by the operation of the evaporator and the condenser. It is also possible to store the pure water in the pure water tank and prevent the water from flowing into the pure water heat exchanger, and it is possible to further reduce energy consumption by suppressing the amount of water heating in the heater. In addition, while not allowing the heated water to flow into the pure water heat exchanger, a part or all of the heat allocated to heat the water that is advanced to the pure water heat exchanger by the heater, It can also be configured to increase the temperature of the hot water heated to the evaporator by diverting the water to the evaporator, and the amount of water in the gas phase generated by the evaporation in the evaporator is increased. And the yield of the pure water after condensation finally obtained with a condenser can be increased, and pure water can be efficiently manufactured in a short time.

It is a block block diagram of the water supply and processing system which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply / treatment system 10 Heater 20 Evaporator 30 Condenser 31 Pure water tank 32 Pump 40 Pure water heat exchanger 50 Ozone water production equipment 51 Ozone generator 60 Water purifier 61 Water storage tank 70 Reverse osmosis membrane type water purifier 80 Tap water supply source 100 Washing section

Claims (3)

A heater that heats the supplied water to produce hot water at a predetermined temperature;
An evaporator which is supplied with a part of the hot water obtained by the heater and evaporates the hot water in a reduced pressure space;
A condenser for condensing vapor phase water evaporated in the evaporator by heat exchange with cooling water to obtain pure water containing no metal ions;
A heat exchanger for pure water that obtains warm pure water by heat-exchanging the remaining warm water not supplied to the evaporator among the water heated by the heater with pure water obtained by the condenser;
A water purifier that obtains purified water by removing pollutants from waste water generated using the warm pure water,
And at least a tap water supply source for supplying tap water that is at least part of the cooling water,
Hot water that has not been completely evaporated in the evaporator and remains in a liquid phase, cooling water that has been heated after the heat exchange in the condenser, and hot water that has been heat-exchanged with pure water in the heat exchanger for pure water The tap water supplied from the tap water supply source is combined with the water to be heated and supplied to the heater,
Purified water exiting the water purifier is introduced into the condenser as the cooling water together with tap water supplied from a tap water supply source. The water supply / treatment system according to claim 1,
A water supply comprising an ozone water producing device that is disposed on the rear side of the heat exchanger for pure water and produces ozone water by mixing ozone generated by a predetermined ozone generator into pure water.・ Processing system. In the water supply / treatment system according to claim 1 or 2,
Another heat exchanger for lowering the condenser inlet temperature by cooling the cooling water with another cooling medium is disposed on the upstream side of the cooling water flow path in the condenser. Water supply / treatment system.

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