WO2019150424A1

WO2019150424A1 - Seawater desalination device for ships

Info

Publication number: WO2019150424A1
Application number: PCT/JP2018/002911
Authority: WO
Inventors: 尚之生田
Original assignee: 株式会社テクノシステム
Priority date: 2018-01-30
Filing date: 2018-01-30
Publication date: 2019-08-08
Also published as: JPWO2019150424A1; KR20200109318A; TW201932363A

Abstract

The present invention can be easily installed on a desired site on a ship and enables at least a shower using hot water at the installation site. A seawater desalination device for ships is provided in a housing that is movable by means of either a trolley or casters and comprises a soft water generation unit that is downstream of a potable water storage unit and softens potable water via a water pump. The soft water generation unit is provided with: a soft-water supply line which sends soft water via a directional control valve to a first outlet; and a hot-water supply line for shower which has a heater for making soft water hot and which sends the hot water in the heater to a second outlet. The seawater desalination device further comprises a control unit which controls each of a high-pressure pump, the water pump, and the directional control valve.

Description

Marine desalination equipment

The present invention relates to a marine desalination apparatus.

An object of the invention of Patent Document 1 is to provide a seawater desalination apparatus for ships that can be reduced in cost and weight and can reduce the installation space. Means for solving this problem are as follows: “the first transport pipe 18 having one end connected to the downstream side of the medium-pressure type module 16 and the other end connected to the household equipment; and the first transport pipe And the intake pipe 12 via a direction control valve (36, 38), respectively, a second transport pipe 20, a sub tank 22 incorporated in the second transport pipe, and a direction control to the first transport pipe. It includes a third transport pipe 24 connected via a valve 40, and a potable water tank 26 connected to the third transport pipe, and the water once passed through the module is led to daily life equipment and passed twice through the module. The water is formed so as to guide the water to the potable water tank ”(reference numeral is that of Patent Document 1).

Therefore, when the treated water is used for a shower or a bath, the invention of Patent Document 1 can guide the so-called primary treated water flowing out from the module to the first transport pipe as it is to the living equipment. On the other hand, when the water is used for drinking, the primary treated water flowing out from the module to the first transport pipe is guided to the sub tank, and the primary treated water remaining on the upstream side of the drinking water tank is guided to the sub tank. Thereafter, the secondary treated water from which water from the sub-tank flows out of the module is guided to the drinking water tank, and drinking water can be obtained from the drinking water tank 26.

The seawater desalination apparatus for a ship having the above-described configuration uses a single and medium pressure type module (reverse osmosis membrane means), so that the cost can be reduced. As a result, there are advantages that the weight can be reduced and the installation space can be reduced.

However, in the invention of Patent Document 1, the marine seawater desalination apparatus is “what is unknown”, “the point that the reverse osmosis membrane means is single”, and “the seawater cannot be softened” , "Points that do not have a heating part that heats the treated water", "Points where it is unclear if a heating part is provided", "Points that the reverse osmosis membrane means cannot be automatically washed", etc. There is a point, at the place where it is installed, not only the acquisition of drinking water, but also that it can be showered using at least hot water, that the treated water can be softened, that the reverse osmosis membrane means can be used for a long time, There were some points that should be improved from the viewpoints of ease of use and making maintenance unnecessary.
JP-A-5-15877

In view of the problems of Patent Document 1, the main problem of the present invention is that it can be easily installed at a place desired by a ship, and at the place where it is installed, not only the acquisition of drinking water but also a shower using hot water. It can be done. In addition, the treated water may be softened to obtain delicious drinking water. The secondary purpose of the present invention is that the reverse osmosis membrane means can be used for a long time, is easy to use, enables automatic rotation of the reverse osmosis membrane means, eliminates the need for maintenance, etc. is there.

The above and other problems and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only and do not limit the technical scope of the present invention.

The seawater desalination apparatus for ships according to the present invention includes a first water purification treatment section that filters seawater through a water intake pump that pumps seawater from a ship, and a primary treatment water that has been treated by the first water purification treatment section. A seawater desalination apparatus for marine desalination that includes a freshwater generation unit that desalinates and a drinking water storage unit that stores secondary treated water that has been made freshwater by the freshwater generation unit as drinking water. A soft water generating unit that is provided in a casing movable via either a cart or a caster, and softens the drinking water via a water pump on the downstream side of the drinking water storage unit, and the soft water generating unit A soft water supply line for sending soft water to the first outlet through a directional control valve, and a hot water supply line for a shower having a heating part for turning the soft water into warm water and sending the warm water of the heating part to the second outlet part Provided, and Water desalination apparatus, the high pressure pump, water pump, and having a control unit for controlling the directional control valve, respectively.

In the above configuration, the casing includes a case main body provided with a high-pressure pump and a fresh water generation unit, a drinking water storage unit, a soft water generation unit, and a heating unit, and a lid body provided on the case main body so as to be freely opened and closed. The reverse osmosis membrane means of the fresh water generator has at least two. Further, an operation button and a display lamp are provided on the upper surface of the lid, respectively, while the reverse osmosis membrane means of the fresh water generating unit is provided on the rear wall side of the case body so as to substantially overlap in the vertical direction. It is characterized by. A switching valve for changing the direction of secondary treated water is provided between the fresh water generating unit and the drinking water storage unit, and the drinking water processed by the fresh water generating unit is provided at one outlet of the switching valve. Is connected to the drinking water storage section, and a discharge pipe capable of discharging the wash water flowing out of the fresh water generating section is connected to the other direction outlet of the switching valve. Further, a hot water faucet is provided at the second outlet of the shower hot water supply line, and a base end of a flexible hose having a shower head is integrally attached to the hot water faucet. Features. In addition, a part of the piping protrudes from one side wall of the case body with a gap so that a part of the shower head or the flexible hose can be hung. In addition, a storage battery is disposed in the housing, and the storage battery acquires electricity from at least one of a solar cell module or a generator installed on a ship. Further, a reverse osmosis membrane cleaning processing unit capable of storing drinking water as cleaning water is connected to the fresh water generating unit, and a plurality of reverse osmosis membrane means of the fresh water generating unit are controlled at a predetermined or required time. It is characterized by automatically washing through a valve and a washing pump. In addition, the last water purification process part is provided in the downstream of the soft water production | generation part, It is characterized by the above-mentioned.

Here, “substantially overlap” means that a plurality of reverse osmosis membrane means are arranged in parallel in the horizontal direction or the inclination direction, and one reverse osmosis membrane means is in close contact with or in a gap with respect to the other reverse osmosis membrane means. It is said that it is arranged.

(A) In the invention described in claim 1, the seawater desalination apparatus is provided in a casing that can be moved via either a hand cart or a caster, and further, a water pump is provided downstream of the drinking water reservoir. A soft water generating unit for softening drinking water, a soft water supply line for sending soft water to the soft water generating unit via a directional control valve, and a heating unit for converting the soft water into warm water. The hot water supply line for the shower that sends the warm water to the second outlet is provided, so that the seawater desalination device can be easily installed at the desired location of the ship, and the drinking water can be installed at the installed location. You can take a shower using hot water as well as acquisition. Moreover, since it has the soft water production | generation part, the drinking water currently stored in the drinking water storage part can be softened, and delicious water can be obtained.
(B) In the invention according to claim 2, the case is provided with a case main body provided with a high-pressure pump, a fresh water generation unit, a drinking water storage unit, a soft water generation unit, and a heating unit, and the case main body can be freely opened and closed. Since the reverse osmosis membrane means of the fresh water generating unit has at least two, the reverse osmosis membrane means can be used for a long time.
(C) In the invention according to claim 3, an operation button and a display lamp are provided on the upper surface of the lid body, respectively, while the reverse osmosis of the fresh water generating unit is provided on the outer wall surface of the rear wall of the case body. Since the membrane means is provided so as to substantially overlap in the vertical direction, it is easy to use and the apparatus can be made compact to reduce the installation space.
(D) In the invention according to claim 4, a switching valve for changing the direction of the secondary treated water is provided between the fresh water generating unit and the drinking water storing unit, and the fresh water generating unit is provided at one outlet of the switching valve. A supply pipe for sending the drinking water treated in the section to the drinking water storage section is connected, and a discharge pipe for discharging the wash water flowing out from the fresh water generating section is connected to the other direction outlet of the switching valve. Therefore, the reverse osmosis membrane means of the fresh water generator can be washed.
(E) In the invention according to claim 5, a hot water faucet is provided at the second outlet portion of the hot water supply line for shower, and the base end portion of the flexible hose having a shower head at the hot water faucet. Is integrally attached, the effect of claim 1 can be ensured.
(F) In the invention described in claim 6, since a part of the piping protrudes from one side wall of the case body with a gap so that a part of the shower head or the flexible hose can be hung. Very convenient to use.
(G) In the invention according to claim 7, a storage battery is disposed in the housing, and since this storage battery obtains electricity from at least one of the solar cell module or the generator installed on the ship, Excellent in properties.
(H) In the invention according to claim 8, a reverse osmosis membrane cleaning processing unit capable of storing drinking water as cleaning water is connected to the fresh water generating unit, and at a predetermined or required time, the fresh water generating unit Since a plurality of reverse osmosis membrane means are automatically washed via a control valve and a washing pump, automatic rotation of the reverse osmosis membrane means can be enabled and maintenance can be eliminated as much as possible.
(I) In the invention according to claim 9, since the last water purification treatment section is provided on the downstream side of the soft water generation section, "delicious" and "complete water" can be obtained as much as possible.

1 to 3 are explanatory views showing a first embodiment of the present invention. FIG. 4 is an explanatory diagram of a second embodiment of the present invention.
The schematic explanatory drawing which showed the whole apparatus with the block etc. Explanatory drawing which looked at the external appearance structure of the apparatus from the perspective. The schematic explanatory drawing which opened the cover of the apparatus. Explanatory drawing of 2nd Embodiment which considered the other structure.

X: Seawater desalination equipment for ships, 1 ... Housing,
2 ... Swivel caster, 3 ... Intake pump,
4 ... First water purification treatment unit, 5 ... High pressure pump,
6 ... fresh water production | generation part, 6a, 6b ... reverse osmosis membrane means,
7 ... changeover valve, 8 ... supply pipe,
9 ... Drinking water storage part, 10 ... Drain pipe,
11 ... water pump, 12 ... soft water generator,
13 ... Directional control valve, 14 ... First outlet,
15 ... heating section, 16 ... second outlet section,
17 ... Storage battery, 18 ... Control part,
19 ... inverter, 20 ... converter,
21 ... Operation buttons, 22 ... Indicator lamps,
24 ... flexible hose, 24a ... shower head,
25 ...
30 ... Reverse osmosis membrane cleaning processing unit, 31 ... Cleaning liquid storage tank,
32 ... Washing pump, 36 ... Last water purification unit, a, b ... Control valve.
L1 ... soft water supply line (pipe), L2 ... warm water supply line (pipe).

First, with reference to FIG. 1 thru | or FIG. 3, the structural member of the sea water desalination apparatus X of 1st Embodiment of this invention is demonstrated. Reference numeral 1 denotes a housing having a plurality of (for example, 4) free casters 2 at four corners of the bottom surface of a horizontally long rectangular bottom wall. The housing 1 includes, for example, a high-pressure pump 5 and a fresh water generator 6 described later, and drinking water storage. A horizontally long case main body 1a provided with an inner portion and an outer portion 9, a soft water generating portion 12 and a heating portion 15, and an end face “he” -shaped lid 1b provided at the upper end portion of the case main body so as to be opened and closed. Consists of.

The reverse osmosis membrane means of the fresh water generating unit 6 has at least two high-pressure tanks and RO membranes respectively built in these high-pressure tanks, and the high-pressure tanks are provided substantially in parallel. In addition, in the embodiment, a plurality of operation buttons 21 and display lamps 22 are provided in the horizontal direction on the upper surface of the lid body 1b, in the embodiment in the approximate center of the slope wall, respectively, Reverse osmosis membrane means 6a and 6b constituting the fresh water generating unit 6 are provided on the outer wall surface of the rear wall so as to substantially overlap in the vertical direction.

Next, 3 is a water intake pump for pumping up seawater, and the drive of this water intake pump 3 is controlled by a control signal from a control unit 18 connected to a storage battery 17 described later. Preferably, the intake pump 3 is driven through a converter 20 that converts alternating current sent from the control unit 18 having an inverter 19 into direct current.

Next, 4 is the first water purification treatment unit connected to the water intake pump 3 via an unrecognized intake pipe, and this first water purification treatment unit 4 has a function as a filter for removing impurities from seawater. In the embodiment, a first processing tank and granular activated carbon, fine stones, sand, and the like filled in the first processing tank are used.

Next, 5 is a high-pressure pump that is connected to the first water purification treatment unit 4 and pumps the primary treatment water filtered by the first water purification treatment unit 4. The driving of the high-pressure pump 5 is controlled by a control signal from the control unit 18. Preferably, the high pressure pump 5 is driven by the alternating current from the inverter 19 described above.

Next, 6 is connected to the high pressure pump 5. In the embodiment, a fresh water generating unit having two reverse osmosis membrane means 6 a and 6 b in the left and right or up and down directions. The fresh water generating unit 6 is pumped from the high pressure pump 5. The primary treated water (seawater and hard water) is made pure water by selectively using the two reverse osmosis membrane means 6a and 6b. This fresh water corresponds to secondary treated water as drinking water in the embodiment.

Next, 7 is a switching valve which is provided between the fresh water generating unit 6 and the drinking water storage unit 9 provided with one or a plurality of water level sensors S and changes the direction of the secondary treated water (drinking water). A supply pipe 8 is connected to one outlet of the switching valve 7 to feed drinking water processed by the fresh water generating unit 6 to the drinking water storage unit 9, while a fresh water generating unit is connected to the other direction outlet of the switching valve 7. A discharge pipe 10 for discharging the wash water flowing out from 6 is connected.

Regarding the latter washing water, when washing the reverse osmosis membrane means 6a, 6b, for example, the free end of the washing hose connected to the washing pump arranged outside the case body 1a is connected to the primary side (suction port) of the high-pressure tank. And using a bubble supply means (ejector) to feed cleaning water together with bubbles into the high-pressure tank. At this time, the switching valve 7 is switched to the outlet in the other direction, and the washing water is discharged from the discharge pipe 10 through the switching valve 7.

The high-pressure tank is cleaned automatically using secondary treated water by providing one or a plurality of control valves in the return pipe connected to the main pipe and controlling the control valve by the control unit 18. You may comprise so that it can be performed (refer 2nd Embodiment and FIG. 4).

Next, 11 is a water supply pump provided in a pipe on the downstream side of the drinking water reservoir 9, and this water pump 11 pumps the drinking water in the drinking water reservoir 9 to the soft water generator 12 on the downstream side. This water pump 11 is also controlled by a control signal from the control unit, similarly to the high pressure pump 5, and is driven by an alternating current from the inverter 19.

The soft water generator 12 softens the drinking water sent by the water pump 11. Since the soft water generator 12 has a granular or granular ion exchange resin incorporated in a regeneration tank, in a preferred embodiment, salt that can be added and drinking water sent from the water pump 11 at a required time. Thus, regenerated water (salt water) is generated in the regeneration tank, and the ion exchange resin is regenerated (salted state: washed) for a required time (for example, 40 minutes). Although not shown in particular, the treated water containing the hardness component after regeneration is discharged out of the housing 1 using the drinking water in the drinking water storage unit 9.

Next, reference numeral 13 denotes a directional control valve (three-way switching valve) connected to the soft water generator 12. A soft water supply line (pipe) L1 for sending soft water to the first outlet 14 is provided at one outlet of the directional control valve 13. On the other hand, the other outlet of the directional control valve 13 has a heating part 15 having a heater for warming soft water, and the hot water of the heating part 15 is supplied to a plurality of second outlet parts 16. , 16 are provided with hot water supply lines (piping) L2, L2. The heating of the heating unit 15 is controlled by the control unit 18, and the hot water of the heating unit 15 is controlled to be an appropriate temperature (for example, 40 degrees).

However, the base end portion of the flexible hose 24 having the shower head 24a is integrally attached to one side of the second outlet portion 16 having the hot water faucet (plug member). Moreover, the hot water which comes out of the 2nd exit part 16 which has the other faucet (plug member) for hot water can be utilized for the bathtub 25 installed outside the housing | casing 1. FIG.

In the embodiment, a part of the pipe has a substantially downward U-shape or a downward direction with a gap from one side wall of the case body 1a so that the shower head 24a or a part of the flexible hose 24 can be hung. It protrudes into a U shape (see FIG. 2).

By the way, although not shown in FIG. 1, the final water purification treatment unit 36 is provided on the downstream side of the soft water generation unit 15, preferably the soft water supply line L <b> 1. This final water purification treatment unit 36_Hlk504731030 is, for example, A first water purification member (an activated carbon for removing organic matter, coral for generating mineral water, barley stone, granular titanium, tolmanite ore, etc.) provided on the downstream side of the aforementioned directional control valve (three-way switching valve) 13 is connected to this. It consists of a 2nd water purification member (hollow fiber membrane for organic substance removal).

17 is a large-capacity storage battery, and this storage battery 17 is appropriately disposed in the housing 1 and acquires electricity from at least one of a solar cell module or a generator installed on the ship.

In the above-described configuration, the marine desalination apparatus X is installed in a desired place such as a deck or a bathtub through a hand-drawn cart or caster (not shown). Then, the delicious drinking water which can be obtained from the seawater desalination apparatus X for ships is put into the drinkable water tank and container which can be conveyed. On the other hand, the warm water discharged from the marine desalination apparatus X can be bathed by a sailor or the like using the shower head 24a. In the embodiment, the drinking water softened by the soft water generator 12 is warmed to an appropriate temperature by the heating unit 15.

That is, the drinking water softened by the soft water generator 12 is used for (a) drinking water and (b) hot water. Even if it is a case of any aspect, drinking water is each utilized by two piping via the drinking water storage part 9 and the soft water production | generation part 12. FIG.

Here, the features of the present invention will be described. As described in FIG. 1 of Patent Document 1, “at least a first water purification treatment unit 4 that filters seawater through a water intake pump 3 that pumps seawater from a ship; The fresh water generation unit 6 that desalinates the primary treated water treated by the first water purification treatment unit via the high-pressure pump 5 and the beverage that stores the secondary treated water made fresh water by the fresh water generation unit as drinking water A marine desalination apparatus including a water reservoir 9 is known.

In the present invention, on the premise of the known invention, a seawater desalination apparatus is provided in a casing 1 that can be moved through either a hand-drawn cart or a caster 2, and a water pump 11 is provided downstream of a drinking water reservoir 9. A soft water generating part 12 for softening drinking water via a soft water supply line L1 for sending soft water to the first outlet part having a plug member via a direction control valve 13 to the soft water generating part, and soft water to warm water At least one hot water supply line L2 having a heating unit 15 and sending the hot water of the heating unit to a second outlet having a plug member is provided, and the seawater desalination apparatus X includes a high-pressure pump 5 and a water pump. 11 and a control unit 18 for controlling the direction control valve 13 respectively.

Thus, when the ion-exchange resin is regenerated (washed), industrial salt having relatively large grains can be introduced into the soft water generation unit 12. Reclaimed water (salt water) can be generated by drinking water sent from the water pump 11 on the side, and the ion exchange resin can be regenerated (washed) in the regeneration tank. And after reproducing | regenerating the ion exchange resin of a soft water production | generation part, as above-mentioned, the drinking water currently stored by the drinking water storage part 9 is again utilized for (a) delicious drinking water and (b) warm water, respectively. can do.

Finally, FIG. 4 is an explanatory diagram of the second embodiment in which the configuration of the “reverse osmosis membrane cleaning unit 30” is added to the configuration of the first embodiment. The subject of this 2nd Embodiment is enabling the automatic rotation of the several reverse osmosis membrane means 6a, 6b which comprises the fresh water production | generation part 6. FIG.
Therefore, if the right side of the cleaning liquid storage tank 31 shown as a block in the upper part of FIG. 4 is the inlet side (primary) for the cleaning water, the left side of the cleaning liquid storage tank 31 is the cleaning water (using drinking water in the embodiment). On the exit side (secondary).

Therefore, the symbol b1 is a control valve on the outlet side of the washing water. Between the control valve b1 and the cleaning liquid storage tank 31, a cleaning pump 32 that is driven and controlled by the control unit 18 at a predetermined or required time is provided, and one of the two high-pressure vessels T1 and T1 is When the cleaning time comes, the cleaning pump 32 is driven for a predetermined time. As a result, the cleaning water in the cleaning liquid storage tank 31 is sent to the high-pressure vessel T1.

In FIG. 4, a number of control valves are provided at appropriate places. Here, for convenience, the control valve on the inlet side of the primary treated water provided on the high-pressure pump 5 side is referred to as “a”, The control valve on the side that sends the drinking water that has passed through the RO membrane of the container T1 to the drinking water storage unit 9 side is distinguished as “b”.
The control valves a and b are selectively used based on a control program and a timer stored in the storage unit of the control unit 18. Therefore, when any one of the plurality of reverse osmosis membrane means 6a, 6b is washed, the other reverse osmosis membrane means can be used as it is_Hlk504303868. _Hlk504303868 The washing water that has washed the reverse osmosis membrane means 6a and 6b is discharged out of the housing 1 from the discharge pipe 7 via the switching valve 7, for example.

The present invention can be used on a ship and as a device for desalinating seawater.

Claims

A first water purification treatment section that filters the seawater through a water intake pump that pumps seawater from the ship; In a marine seawater desalination apparatus comprising a drinking water storage unit for storing secondary treated water made fresh water in this fresh water generation unit as drinking water,
Soft water generation in which the seawater desalination apparatus is provided in a casing that can be moved via either a hand cart or a caster, and the drinking water is softened via a water pump on the downstream side of the drinking water reservoir. And a soft water supply line for sending soft water to the first outlet part via the direction control valve to the soft water generation part, and a heating part for turning the soft water into warm water, and sending the warm water of the heating part to the second outlet part A warm water supply line for showers is provided, and the seawater desalination apparatus further includes a control unit that controls the high-pressure pump, water pump, and direction control valve, respectively.
2. The marine desalination apparatus according to claim 1, wherein the casing includes a case main body provided with a high-pressure pump, a fresh water generation unit, a drinking water storage unit, a soft water generation unit, and a heating unit, and the case main body is openable and closable. A seawater desalination apparatus for ships, comprising at least two reverse osmosis membrane means of the fresh water generating section.
3. The marine desalination apparatus according to claim 2, wherein an operation button and a display lamp are provided on the upper surface of the lid, respectively, while a reverse osmosis membrane of the fresh water generating unit is provided on the rear wall side of the case body. A marine seawater desalination apparatus, characterized in that the means are provided so as to substantially overlap in the vertical direction.
In the marine seawater desalination apparatus of Claim 1, the switching valve which changes the direction of a secondary treated water is provided between the said fresh water production | generation part and the said drinking water storage part, and the one outlet of this switching valve is provided in one exit. A supply pipe for sending the drinking water treated in the fresh water generating section to the drinking water storage section is connected, and a discharge pipe capable of discharging the wash water flowing out of the fresh water generating section to the other direction outlet of the switching valve. A seawater desalination apparatus for ships, characterized in that is connected.
2. A marine desalination apparatus according to claim 1, wherein a hot water faucet is provided at a second outlet of the hot water supply line for the shower, and the hot water faucet has a flexible hose base having a shower head. A seawater desalination apparatus for ships, wherein the ends are integrally attached.
7. A marine desalination apparatus according to claim 6, wherein a part of the pipe projects with a gap from one side wall of the case body so that the shower head or a part of the flexible hose can be hung. A seawater desalination apparatus for ships.
2. The marine desalination apparatus according to claim 1, wherein a storage battery is disposed in the casing, and the storage battery acquires electricity from at least one of a solar cell module or a generator installed on the ship. A seawater desalination system for ships.
2. The seawater desalination apparatus according to claim 1, wherein a reverse osmosis membrane cleaning processing unit capable of storing drinking water as cleaning water is connected to the fresh water generating unit, and the fresh water generation is performed at a predetermined or required time. A marine seawater desalination apparatus, wherein a plurality of reverse osmosis membrane means in a section are automatically washed via a control valve and a washing pump.
2. The marine desalination apparatus according to claim 1, wherein a final water purification unit is provided downstream of the soft water generating unit.