WO2016039421A1

WO2016039421A1 - Drinking water supply device

Info

Publication number: WO2016039421A1
Application number: PCT/JP2015/075741
Authority: WO
Inventors: 海水岩崎; 龍大岩崎
Original assignee: ビクトリージャパン株式会社; 海水岩崎; 龍大岩崎
Priority date: 2014-09-10
Filing date: 2015-09-10
Publication date: 2016-03-17
Also published as: KR20170054328A; TW201610380A; JP2016055906A; TWI607193B; CN106536402A; JP6280007B2

Abstract

This drinking water supply device is provided with: a source water intake unit; a water quality improvement unit that is provided downstream of the source water intake unit and includes a water quality improvement material; a maintenance unit that controls the flow rate of the source water that is supplied from the source water intake unit and maintains an appropriate water level in an introduction portion of the water quality improvement unit; a storage unit that stores the water after water quality improvement; a water supply unit that supplies the water stored in the storage unit; and an atmosphere connection portion that connects an upper space of the source water introduction unit and an upper space of the storage unit to the atmosphere.

Description

Drinking water supply device

Cross-reference of related applications

This international application claims priority based on Japanese Patent Application No. 2014-184362 filed with the Japan Patent Office on September 10, 2014, and is based on Japanese Patent Application No. 2014-184362. The entire contents are incorporated herein by reference.

This disclosure relates to a drinking water supply device. More specifically, the present invention relates to a drinking water supply apparatus that is installed in various restaurants such as a coffee shop and a cafeteria, an employee cafeteria, or an office and that can provide hot water and / or cold water. More specifically, the present invention relates to a drinking water supply apparatus of a type in which it is unnecessary to transport the water tank or replace the water tank by removing the water tank and directly taking in, for example, tap water.

As a drinking water supply apparatus, as shown in Patent Document 1, for example, an apparatus is known in which tap water is passed through a filter to filter the tap water, and the filtered water is supplied. In this apparatus, tap water can pass through a filter by the pressure (water pressure) of the tap water. The filter may be attached inside the cold water tank and / or the hot water tank, or may be attached upstream of the cold water tank and / or the hot water tank.

In the chilled water machine described in Patent Document 2, a chilled water tank is arranged in the upper part inside the chilled water machine body. A partition member for partitioning the inside of the cold water tank into a water storage unit and a cold water unit is disposed inside the cold water tank. On the lower surface of the partition member, for example, a cartridge containing activated carbon wrapped with a nonwoven fabric is provided. The tap water is filtered by the cartridge and supplied as drinking water.

In the above-described conventional technology, a system is used in which water such as tap water is forced to pass through a water quality improving material (filter or cartridge) using water pressure. In this case, there is a concern that water may pass through the water quality improving material without obtaining sufficient water quality improvement time. In some cases, a specific water channel is formed in the water quality improving material, and water passes only through the water channel, and the water quality improving effect is extremely reduced.

JP 2002-107031 A JP-A-5-149663

In the above-described conventional drinking water supply apparatus, in order to improve the water quality satisfactorily with the water quality improving material, it has been required to ensure sufficient time for the raw water to contact the water quality improving material. However, in the case of pressurized water pumped up with tap water or a pump, etc., the actual value (raw water is actually used as a water quality improvement material) is actually compared to the expected value of the time when the raw water is in contact with the water quality improvement material. The contact time) was sometimes different.

It is desirable to provide a drinking water supply device capable of sufficiently improving water quality.

A drinking water supply device according to an aspect of the present disclosure includes a raw water intake unit that takes pressurized water as raw water, a water quality improvement unit that is provided downstream of the raw water intake unit and includes a water quality improving material, and raw water supplied from the raw water intake unit A maintenance unit that controls the amount of water flow to maintain an appropriate water level in the introduction part of the water quality improvement unit, a storage unit that is provided downstream of the water quality improvement unit, stores water after the water quality improvement, and is stored in the storage unit A water supply unit that supplies water, and an air communication unit that communicates the upper space of the introduction unit and the upper space of the storage unit to the atmosphere.

According to this drinking water supply device, since the air communication part is provided, the pressure acting on the upper part of the water quality improving material is determined according to the atmospheric pressure and the water level of the introduction part maintained by the maintenance unit. It becomes the pressure according to the water pressure. For example, if the appropriate water level is set near the upper end of the water quality improving material, the pressure acting on the upper portion of the water quality improving material becomes a pressure corresponding to the atmospheric pressure (a pressure close to the atmospheric pressure).

Also, when the water supply unit is opened, water is supplied from the storage unit downstream of the water quality improvement unit, but the storage unit is also in communication with the atmosphere. For this reason, unnecessary pressure does not act on the water quality improvement unit even during water supply. In other words, the atmospheric pressure level only acts on the water quality improvement unit.

According to the drinking water supply device of the present disclosure, it is possible to avoid a large pressure (unnecessarily excessive pressure) from acting on the upper portion (upstream side) of the water quality improving material. Moreover, it can also avoid that the lower part (downstream side) of a water quality improvement material is attracted | sucked with a big pressure.

Thereby, in the water quality improving material, water flows at a speed according to its own weight, and does not flow at a speed higher than the speed according to its own weight.
Moreover, it can avoid that the specific water channel which is not intended in the water quality improvement material will be formed by avoiding that a big pressure acts on the upper part of a water quality improvement material. Thereby, it can avoid that the problem that water passes only the specific water channel and the water quality improvement effect falls extremely will arise.

According to the drinking water supply device of the present disclosure, water flows at a speed corresponding to its own weight in the water quality improving material and does not flow at an unnecessarily large speed, so that sufficient water quality improvement time can be secured. Therefore, drinking water with sufficiently improved water quality can always be obtained.

In the drinking water supply device of the present disclosure, the maintenance unit includes a detection unit that detects a water level in the introduction unit, a water flow control unit that receives the raw water supplied from the raw water intake unit and controls the flow rate of the raw water. And a flow path for guiding the raw water received by the water flow control unit to the water quality improvement unit, a flow path opening / closing mechanism for opening / closing the flow path, and a mechanism control unit for controlling the operation of the flow path opening / closing mechanism.

This makes it possible to control the amount of water flow while detecting the water level in the introduction section that is connected to the atmosphere. For this reason, an accurate water level can always be detected and maintained. For example, even in the case of pressure water, the flow rate of the flow path can be adjusted simply by controlling the flow path opening / closing mechanism that opens and closes the flow path with the mechanism control unit, so that the water level at the introduction part of the water quality improvement unit is stable and appropriate. Can be maintained.

Further, in the drinking water supply device of the present disclosure, the detection unit is a float member and a link member, and the float member is integrally connected to one end, and the rotation center and the rotation center are connected to the other end. And a link member configured to press the channel opening / closing mechanism or to release the pressing to the channel opening / closing mechanism.

According to this, the buoyancy of the float member can be greatly amplified, and the flow path opening / closing mechanism can be operated so as to generate a force capable of resisting pressurized water. For this reason, reliable operation | movement of a flow-path opening-and-closing mechanism is realizable.

¡By changing parameters such as the position of the action point, the shape and size of the float member, or the overall length, the closing pressure when the channel is closed by the channel opening / closing mechanism can be set freely.

According to the drinking water supply device of the present disclosure, for example, when pressurized water such as tap water is supplied to the drinking water supply device as raw water, the pressure in the pressurized water (raw water) is removed, and only atmospheric pressure acts on the raw water. Become. Thereby, the water level can be stabilized at a predetermined position. For this reason, the stable and effective water quality improvement effect is acquired.

Hereinafter, an embodiment of a drinking water supply device of the present disclosure will be described based on the drawings.
The embodiment described below is merely an example, and various design improvements made by those skilled in the art without departing from the scope of the present disclosure are also included in the scope of the present disclosure.

It is a whole perspective view of a drinking water supply device showing one embodiment of this indication. It is a vertical sectional view of a drinking water supply device. It is the elements on larger scale of the vertical sectional view of a drinking water supply device. 4A and 4B are operation explanatory diagrams of the water flow control unit. 5A is a front view of the valve body, FIG. 5B is a bottom view of the valve body, and FIG. 5C is a sectional view taken along the line VC-VC. FIG. 3 is an explanatory diagram showing the operation and state of main units including a raw water intake unit, a water quality improvement unit, a maintenance unit, and a storage unit.

120: Connection port, 130: Filtration container, 137: Activated carbon, 139: Activated carbon housing part, 141: Hollow fiber membrane, 142: Guide case, 150 ... Storage tank, 151 ... Partition plate, 160 ... Hot water tank, 167 ... Refrigerator , 169 ... Cooling section, 170 ... Cold water cock, 175 ... Hot water cock

In FIG. 1, the drinking water supply device 100 is installed on the floor F.
The drinking water supply device 100 has a housing 201. The housing 201 has a vertically long, substantially rectangular parallelepiped shape that bulges slightly forward. On the front surface of the housing 201 (left surface in FIG. 1), an intermediate position in the vertical direction on the front surface is recessed to form a recessed portion 211. The recessed portion 211 is provided with two

water supply cocks

170 and 175 for cold water / warm water, as an example of a water supply unit, side by side. The water supply cock 170 is a cold water supply cock, and the water supply cock 175 is a hot water supply cock. Note that the two

water supply cocks

170 and 175 may be arranged opposite to the arrangement shown in FIG.

The lower surface of the recessed portion 211 located below the

water supply cocks

170 and 175 is a table 214 for drinking cups.
Each of the

water supply cocks

170 and 175 is provided with one lever body 215 that is curved and extends downward. By pressing the lever body 215 of the water supply cock 170 or the lever body 215 of the water supply cock 175 from the front, the

water supply cocks

170 and 175 are opened.

2 and 3, the upper outer periphery of the filtration container 130 and the upper end outer periphery of the storage tank 150 are connected via a seal member 157 such as packing. The upper end of the storage tank 150 is closed (sealed) by the filtration container 130.

The filtration container 130 has a lid 130a, and is closed (sealed) by the lid 130a via a sealing material 134 such as packing.
A water flow control unit 110 (an example of a water flow control unit) is fixed to the lid 130a by a screw portion 110a. The upper flow path 111a of the water flow control unit 110 is connected to a connection port 120 provided on the back surface of the main body through an internal pipe (not shown). Both or one of the upper flow path 111a and the connection port 120 may correspond to an example of a raw water intake unit.

However, when an external hose (not shown) is directly connected to the upper flow path 111a of the water control unit 110, it may be understood that the upper flow path 111a corresponds to an example of the raw water intake unit.

The lid 130a is provided with a first atmospheric communication portion 130b. The first atmosphere communication portion 130b communicates with the atmosphere outside the housing 201 through a communication portion (not shown).
An air filter (not shown) may be provided in the first atmospheric communication portion 130b. The first atmosphere communicating portion 130b can enable the circulation of the atmosphere via the air filter. Specifically, the space in the introduction part 131 of the filtration container 130 can be opened to the atmosphere by the first atmosphere communication part 130b.

A second atmospheric communication portion 154 is formed on the outer periphery of the filtration container 130. The second atmosphere communication portion 154 communicates with the atmosphere outside the housing 201 through a communication portion (not shown).
The second atmospheric communication part 154 may be provided with an air filter (not shown). The second atmosphere communication part 154 can enable the circulation of the atmosphere through the air filter. Specifically, the upper space of the storage tank 150 can be opened to the atmosphere.

Next, the detection unit will be described with reference to FIGS. 3, 4A, 4B, and 5A-5C. A water flow control unit 110 as an example of the water flow control unit will be described.
In the water flow control unit 110, a flow path 111 including an upper flow path 111a and a lower flow path 111b having a slightly larger inner diameter than the upper flow path 111a is formed.

A valve seat 112 is disposed in a step portion 111c between the upper flow path 111a and the lower flow path 111b. The valve portion 113a of the valve body 113 disposed in the lower flow path 111b is configured to be pressed or separated from the valve seat 112. As a result, the channel 111 can be opened and closed.

The valve body 113 includes a valve portion 113a and a slide guide portion 113b. In the present embodiment, the relationship of the diameter of the opening 112a <the diameter of the valve portion 113a <the diameter of the slide guide portion 113b is established.

Groove portions

113c and 113d are provided around the slide guide portion 113b. When the valve portion 113a is separated from the valve seat 112, the water flowing in from the upper channel 111a can be discharged to the outlet of the channel 111 via the lower channel 111b.

The opening / closing operation of the opening 112a by the valve portion 113a is realized as follows. Specifically, a float 115, which is an example of a buoyancy generating unit, is integrally connected to one end of the plate arm 116, and a rotation center 116a and an action point 116b are provided on the other end of the plate arm 116. It has been. The action point 116b is located in the vicinity of the rotation center 116a.

By this plate-like arm 116, the opening / closing operation of the opening 112a can be realized by pressing the slide guide portion 113b from below or releasing the pressure on the slide guide portion 113b at the action point 116b. The plate-like arm 116 is an example of a link member.

A slit 111d is formed below the lower channel 111c. A slit 113e is formed below the slide guide portion 113b of the valve body 113.
The rotation center 116a of the plate arm 116 is rotatably fixed to a rotation center hole (not shown) of the plate 111e provided on the extension of the slit 111d on the lateral side of the lower channel 111c.

The plate-like arm 116 crosses the center of the pipe line in the slit 111d at the lower part of the lower flow path 111c and the slit 113e of the slide guide part 113b of the valve body 113, and the float 115 main body is controlled in the lateral direction. It is connected to. When the float 115 rises, the plate-like arm 116 crossing the center of the pipe line is in contact with the valve body 113 so as to push up the valve body 113 at the action point 116b (FIG. 4A).

When the water level becomes lower than the reference water level S and the float 115 moves downward (counterclockwise), the plate-like arm 116 that crosses the center of the pipeline at the slit 111d of the lower channel 111b also moves counterclockwise. .

As a result, the valve body 113 slides in the downward direction, the valve portion 113a drops in a direction away from the opening 112a of the valve seat 112, and the flow path 111 communicates.
Thus, the pressurized raw water can be received from the upper flow path 111a of the water flow control unit 110, and the raw water is supplied to the introduction part 131 of the water quality improvement unit.

When raw water is supplied to the introduction unit 131 of the water quality improvement unit, the water level of the system rises from L to S and the float 115 also rises.
When the float 115 moves up and moves in the clockwise direction, the action point 116b of the plate-like arm 116 that crosses the center of the pipeline in the slit 111e of the lower flow path 111b of the water flow control unit 110 pushes up the valve body 113 Slide to. As a result, the valve portion 113a is pushed up in a direction in which the valve portion 113a contacts the opening of the dome-shaped valve seat 112 formed in the step portion 111c of the flow path 111 of the water flow control unit 110.

As a result, the channel 111 is closed and the supply of raw water from the upper channel 111a of the water flow control unit 110 is stopped.
When the float position is lowered, the flow path opening / closing member is also lowered to form a raw water flow path, and when the float position is raised, the flow path opening / closing member is raised and the tap water flow path is closed continuously. As a result, a substantially constant stored water level can be maintained.

The water quality improvement system will be explained from the initial state.
Water quality improvement water 121a, which is raw water supplied from the lower part of the flow path 111 in the water flow control unit 110, is introduced into the introduction part 131 of the water quality improvement unit, which is the first section of the water quality improvement unit. Received the first water quality improvement by the mesh 132 installed at the bottom.

Furthermore, the water quality improvement water 121a is subjected to the second water quality improvement by the activated carbon 137 which is the second section of the water quality improvement unit.
The activated carbon 137 may be in any form of powder, granule, pellet, and solid. The activated carbon 137 is covered with a water permeable package (not shown) so as to be easily exchanged, and is stored in a cylindrical activated carbon storage unit 139. Similar to the first section, a mesh 157 is provided on the bottom surface of the activated carbon housing 139.

The dust and microorganisms are adsorbed and collected by the mesh 132 and the activated carbon 137 and deodorized. The collection target of the activated carbon 137 includes chalk, trihalomethane, organic substances, odorous substances, and chlorinated organic substances.

As the activated carbon 137, a plant-derived natural fiber or a mineral-derived synthetic fiber, or a fibrous activated carbon prepared by carbonizing a mixture of natural fiber and synthetic fiber and using a binder is preferable. Biological minerals may be added to the activated carbon 137. Biological minerals can be supplied as isotonic solutions with mineral components (K, Ca, Na, Mg) in a balance very close to the body fluids of the human body.

Further, the water quality improvement water 121a is subjected to the third water quality improvement by the hollow fiber membrane 141 which is the third section of the water quality improvement unit.
The hollow fiber membrane 141 is formed by accumulating and fixing hollow fibers. One end of the hollow fiber (one end of the hollow fiber membrane 141) is exposed, and water molecules absorbed from the surface of the hollow fiber are released from the other open end (the other end of the hollow fiber). Therefore, filtering with a fineness of about 0.3 microns can be performed.

In this embodiment, the hollow fiber membrane 141 is set in a cylindrical guide case 142, and the guide case 142 is provided on the lower surface side of the activated carbon 137 that is the second section. Specifically, the guide case 142 is fixed to the screw part 138 of the activated carbon housing part 139 with screws.

A portion indicated by reference numeral 144 is an inner screw portion of the guide case 142. In the hollow fiber membrane 141 which is the third section, the water quality improving water 121a passes at a permeation speed defined by the hollow fiber membrane 141 and falls downward, and is discharged from the lower end portion 143 of the hollow fiber membrane 141. The lower end portion 143 becomes a discharge portion (a discharge portion of the water quality improvement unit) that is a portion from which water with improved water quality is naturally dropped and discharged.

As the hollow fiber membrane 141, an aggregate of fibers having a pore diameter of 0.01 to 0.09 μm and slit-like ultrafine holes provided in the peripheral wall portion is preferable.
The water released from the lower part of the flow path 111 in the water flow control unit 110 is introduced into the introduction part 131 of the filtration container 130.

In the water quality improvement system, the water introduced into the introduction part 131 has water flow resistance due to filtering with a water quality improvement material. For this reason, water tends to stay in the water quality improvement system. For example, the relationship “the amount of inflow from the lower part of the flow path 111 in the water flow control unit 110 >> the amount of permeation through the hollow fiber membrane of the third section 141” can be established.

Therefore, while the introduction part 131 of the filtration container 130 maintains the appropriate water level from a relatively early time, the water level of the clean water 121b in the storage unit gradually rises and finally becomes in equilibrium with the introduction part 131. (The introduction part 131 of the filtration container 130 as an example of the water quality improvement unit and the upper part 150 of the storage tank 150 as an example of the storage unit have the same water surface), and the flow path 111 in the water flow control unit 110 is closed. The supply of pressurized raw water is stopped.

The reference water level of the inlet 131 of the filtration container 130 is constantly maintained at a substantially constant level before and after the reference water level by the flow control operation being repeated by the water flow control unit 110.
The purified water 121b after the water quality improvement is introduced and stored in a storage tank 150 and a cooling chamber 155 which are an example of a storage unit.

Here, the storage unit is opened to the atmosphere by the second atmosphere communication unit 154. In addition, the storage unit has a structure in which a part of the storage unit is divided into two vertically by a partition plate 151. The upper room is a storage tank 150, and the lower room is a cooling room 155. The storage tank 150 in the upper part of the storage unit and the cooling chamber 155 in the lower part are covered with a member that also functions as heat insulation and fixation. This member may be formed of a heat insulating material such as polystyrene foam.

Although the liquid level position 152 due to the clean water 121b is near the bottom of the cooling chamber 155, the liquid level position 152 is gradually raised from the bottom of the cooling chamber 155.
The state of falling from the third section 141 to the clean water 121b in the storage tank 150 is defined as pattern 1 (atmospheric release), and the state is determined by a force relationship in which only atmospheric pressure acts.

When the liquid level position 152 exceeds the lower end of the water quality improvement unit, a pressure corresponding to the water head difference of the excess water level is applied to the outlet side of the water quality improvement unit in addition to the atmospheric pressure.
Further, the liquid level position 152 continues to rise as time elapses, and when the upper storage tank 150 is filled with the clean water 121b and the water level of the clean water 121b rises to the appropriate water level 117, the pressure is balanced and the lower end 143 The outflow of clean water 121b from is stopped.

A state in which further clean water 121b is falling from the third section 141 into the clean water 121b of the storage tank 150 is defined as pattern 2 (water release).
A hot water tank 160 is provided below the storage unit. An intake port 156 for introducing clean water 121b is formed in the upper vicinity of the partition plate 151, and a supply pipe 153 is arranged so that liquid above the cooling chamber 155 can be introduced. The lower end of the supply pipe 153 is connected to the lower part 161 of the hot water tank 160.

The hot water tank 160 is provided with a hot water supply pipe 163 (partially not shown) connected to the upper part 162 of the hot water tank 160 for hot water extraction. One end of the hot water supply pipe 163 is connected to the hot water cock 175.

When the hot water cock 175 is closed, the clean water 121b hardly flows into the hot water tank 160 filled with air.
When the hot water cock 175 is opened, the clean water 121b in the storage tank 150 flows into the hot water tank 160 through the supply pipe 153 and fills the hot water tank 160.

The liquid surface position 152 at the appropriate water level 117 of the storage tank 150 is temporarily lowered significantly by supplying the clean water 121b by the volume of the hot water tank 160.
In this case, the pressure balance is broken, and the clean water 121b flows out from the opening 116 again, and continues until the liquid surface position 152 returns to the appropriate water level 117 according to the above-described patterns 1 and 2.

The hot water tank 160 has a heating unit (not shown), and the clean water 121b in the hot water tank 160 becomes hot water having a desired temperature by a heating control unit (not shown).
On the other hand, the clean water 121b accumulated in the cooling chamber 155 is cooled by a cooling unit 169 formed by winding a refrigerant transmission pipe from a refrigerator 167 installed below the main body around the outer periphery of the cooling chamber 155, and has a desired shape. The temperature becomes cold water.

The refrigerator 167 uses a sensor (not shown) attached to the cooling chamber 155 and controls the temperature of the clean water 121b by a temperature control unit (not shown).
The extraction of cold water will be described. The bottom of the cooling chamber 155 and the cold water cock 170 are connected by a cold water supply pipe (not shown). In order to take out the cold water stored at a desired temperature, the cold water cock 170 is opened.

When the cold water cock 170 is opened, clean water 121b cooled through a cold water discharge pipe (not shown) is supplied from the bottom of the cooling chamber 155 due to a water head difference between the appropriate water level 117 and the cold water cock 170.
The removal of warm water will be described. A hot water supply pipe 163 (partially not shown) connects the hot water tank 160 and the hot water cock 175. When the hot water cock 175 is opened, clean water 121b that has become hot water is discharged due to the head difference between the appropriate water level 117 and the hot water cock 175.

At this time, the same amount of clean water 121b as the hot water taken out is supplemented from the storage tank 150 to the hot water tank 160 through the supply pipe 153.
The reason why the supply pipe 153 is arranged at the bottom and the warm water supply pipe 163 is arranged at the top in the hot water tank 160 is to introduce clean water 121b at room temperature, so that the supplementary water is taken out at the bottom, taking into account thermal convection. At the top.

Regarding the maintenance unit provided in the introduction part of the water quality improvement unit, an example in which the maintenance unit has a float type configuration has been described. However, as the detection unit, a mechanism that converts the water level into an electrical signal and outputs it may be adopted. . As the channel opening / closing mechanism, an electromechanical mechanism that opens and closes the channel with an electric rotary unit such as an electromagnetic valve or a motor may be employed. The mechanism control unit may control the opening and closing of the electromechanical mechanism based on an electric signal from the electric detection unit.

Further, as the detection unit, a water level sensor in which a magnetic buoyancy generating member having a float function having a specific gravity of 1 or less is combined with a reed switch may be employed.
Further, as the detection unit, an ultrasonic proximity sensor, an optical proximity sensor, or the like, or a direct detection sensor that directly detects the water surface may be adopted, and the mechanism control unit is electromechanical based on an electrical signal from these sensors. A simple channel opening / closing mechanism may be controlled.

In addition, depending on the water pressure, it may be more stable when the regulator is mediated to the raw water supply unit. Therefore, a configuration in which the regulator is mediated may be adopted.
FIG. 6 illustrates a process in which raw water is injected into the raw water intake unit, the water quality improvement unit, the maintenance unit, and the storage unit in the embodiment of the present disclosure, and clean water enters the appropriate water level and becomes full. The operation and state of the main parts of the unit are shown.

When using clean water normally, depending on the amount of clean water used, clean water enters from the water level A, water level B, and water level C to the appropriate water level at any time and returns to the appropriate water level.

Claims

A drinking water supply device,
Raw water intake unit that takes in pressurized water as raw water,
A water quality improvement unit provided downstream of the raw water intake unit and containing a water quality improvement material;
A maintenance unit for controlling the flow rate of the raw water supplied from the raw water intake unit and maintaining an appropriate water level in the introduction part of the water quality improvement unit;
A storage unit that is provided downstream of the water quality improvement unit and stores water after the water quality improvement;
A water supply unit for supplying water stored in the storage unit;
An atmospheric communication part for communicating the upper space of the introduction part and the upper space of the storage unit to the atmosphere;
A drinking water supply device comprising:
The maintenance unit is
A detection unit for detecting the water level in the introduction part;
A water flow control unit that receives the raw water supplied from the raw water intake unit and controls the flow rate of the raw water;
A flow path for guiding the raw water received by the water flow control unit to the water quality improvement unit;
A channel opening and closing mechanism for opening and closing the channel;
A mechanism control unit for controlling the operation of the flow path opening and closing mechanism;
The drinking water supply device according to claim 1, comprising:
The detection unit is
A float member;
The float member is integrally connected to one end, and a rotation center and an action point located near the rotation center are formed at the other end, and the action point is the flow member. A link member configured to press the path opening / closing mechanism or release the pressure to the channel opening / closing mechanism;
The drinking water supply device according to claim 2, comprising: