KR20140068694A - Water saving device using Bimetal sensor and Water supplying system having the device - Google Patents

Water saving device using Bimetal sensor and Water supplying system having the device Download PDF

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Publication number
KR20140068694A
KR20140068694A KR1020120136498A KR20120136498A KR20140068694A KR 20140068694 A KR20140068694 A KR 20140068694A KR 1020120136498 A KR1020120136498 A KR 1020120136498A KR 20120136498 A KR20120136498 A KR 20120136498A KR 20140068694 A KR20140068694 A KR 20140068694A
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KR
South Korea
Prior art keywords
water
pipe
bimetal
mixed
solenoid valve
Prior art date
Application number
KR1020120136498A
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Korean (ko)
Inventor
강상모
최원열
김다은
김국겸
김관수
Original Assignee
동아대학교 산학협력단
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Application filed by 동아대학교 산학협력단 filed Critical 동아대학교 산학협력단
Priority to KR1020120136498A priority Critical patent/KR20140068694A/en
Publication of KR20140068694A publication Critical patent/KR20140068694A/en

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
    • E03C1/055—Electrical control devices, e.g. with push buttons, control panels or the like
    • E03C1/057—Electrical control devices, e.g. with push buttons, control panels or the like touchless, i.e. using sensors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/08—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with bimetallic element
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C2001/0418—Water-basin installations specially adapted to wash-basins or baths having temperature indicating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

The present invention relates to a water saving device using a bimetal sensor and a water supply system having the water saving device. The mixed water pipe includes a mixed water pipe through which mixed water mixed with cold water and hot water flows, an outflow pipe for taking over the mixed water supplied through the mixed water pipe and guiding it to water supply, And the mixed water is guided to the return pipe when the temperature of the mixed water is lower than the set value in response to the temperature of the mixed water moving to the water outlet pipe.
After the hot water supply is completed, the water remaining in the hot water pipe is cooled and reheated to the boiler when the next hot water is supplied. Since the temperature is low, there is no discarded water, There is no.

Description

Technical Field [0001] The present invention relates to a water saving device using a bimetal sensor and a water supply system having the water saving device,

The present invention relates to a water saving device using a bimetal sensor and a water supply system having the water saving device.

Boilers installed in apartments and general single-family homes, for example, keep the room warm during the cold winter season, and also supply hot water through water supply faucets such as bathrooms and kitchens.

There are various types of boilers, depending on their type and the fuel used, but they are almost similar in operation. That is, a part of the cold water supplied from outside is taken in and heated, and then supplied to a necessary place through the hot water pipe. What is needed is a heating pipe piped to the floor, a bathtub in the bathroom, or a water supply such as a sink or a sink.

On the other hand, since the hot water supply pipe extends a certain length from the boiler to the water supply water, the water from the boiler is trapped in the hot water supply pipe when the hot water is used and the water supply is locked. When the hot water supply pipe is opened again, the supply of water which is waiting in the hot water supply pipe is continued.

However, according to our experience, when cold water is used in a water supply, cold water is immediately available, but when hot water is used, hot water of the desired temperature does not immediately come out. Of course, if you use hot water for a while and then use it for a while, the supply of hot water continues without decreasing the temperature. However, when hot water is not used for several hours, for example, when it is used again, hot water does not come out first, do. This occurs because the water trapped inside the hot water pipe is cooled while hot water is not used, and the water that was cooled when the hot water is turned is discharged first.

For the above reason, the user first discharges the cold water cooled in the water supply pipe (to use the hot water of the desired temperature). In other words, when the hot water valve of the water supply system is opened, the cold water that is cooled in the hot water pipe flows to the sewer, and when the hot water starts to come out, Of course, depending on the user, the cold water is not discarded but it is often taken away. In many cases, cold water is poured into the sewer, waiting for hot water to come out.

Since the cold water discharged before the hot water is discharged from the hot water inside the hot water pipe, the larger the length of the hot water pipe and the larger the inner diameter of the hot water pipe, the larger the amount. Typically, 1.5 liters to 2 liters are discarded until hot water comes out, equivalent to 2.2 tonnes per household per year, which is a huge waste of water resources nationwide.

In order to solve the above problem, the present invention is to solve the above-mentioned problems. The present invention resides in a hot water supply pipe after the supply of hot water is completed and the cooled water is returned to the boiler when the hot water is supplied. A water saving device using a bimetallic sensor which is simple in structure and has no fear of failure, and a water supply system having the water saving device.

In order to achieve the above object, the water saving device using the bimetallic sensor according to the present invention comprises: a mixed water pipe through which mixed water mixed with cold water and hot water flows; an outflow pipe for passing mixed water supplied through the mixed water pipe, And a water pipe connected to the mixed water pipe and the water pipe and extending to the boiler so that when the temperature of the mixed water is lower than the set temperature in response to the temperature of the mixed water moving to the water pipe, A bypass pipe for guiding the mixed water to the return pipe, the bypass pipe being located at a side of the mixed water pipe and passing mixed water flowing through the mixed water pipe into the mixed water pipe; A bimetal part installed inside the bypass pipe and deforming in response to a water temperature of mixed water flowing around the bimetal part; A first contact part installed at one side of the bimetal part and sending a water out signal by the bimetal part deformed to one side due to the water temperature of the mixed water being higher than a preset value; A second contact part provided on the other side of the bimetal part and sending a return signal to the bimetal part deformed in the opposite direction due to the water temperature of the mixed water being lower than the set value; An outflow solenoid valve installed in the water pipe; A return water solenoid valve installed in the water return pipe; An electric signal generated from the first contact portion and an electric signal generated from the second contact portion are transmitted to the outgoing solenoid valve and the return water solenoid valve respectively to open the outgoing solenoid valve or open the return water solenoid valve And a controller.

The bimetal may take the form of a rod extending in the longitudinal direction of the bypass pipe and may be bent in the left and right direction in response to the water temperature so that the upstream end is fixed by the fixed support, And is connected to the contact portion.

Further, a connecting member is fixed to both sides of the downstream side end of the bimetal, and the first contact portion comprises: A pair of terminal portions which are connected to each other by a bimetal connection member curved in one direction to generate a signal are disposed to be spaced apart from each other on a surface facing the bimetal, 2 contact points; And a pair of terminal portions which are connected to each other by the other connecting member of the bimetal bent in the other direction to generate a signal are disposed apart from each other on the surface facing the bimetal .

According to another aspect of the present invention, there is provided a water supply system including a boiler for heating cold water partially supplied through a water supply pipe and discharging heated hot water through a hot water pipe; And a bypass pipe of a mixed water pipe having a bypass pipe at a side of the water pipe for passing mixed water in which some of the cold water supplied through the water pipe is mixed with hot water heated by the boiler, And a water-saving device for sending the mixed water to the boiler through the return pipe when the temperature of the mixed water is lower than the set value in response to the temperature.

The water-saving device may further comprise: A bimetal part installed inside the bypass pipe and deforming in response to a water temperature of mixed water flowing around the bimetal part; a bimetal part installed at one side of the bimetal part, And a second contact portion provided on the other side of the bimetal portion for sending a return signal to the bimetal portion deformed in the opposite direction due to the water temperature of the mixed water being lower than the set value, An outlet solenoid valve installed in the water outlet pipe, a water return solenoid valve installed in the water return pipe, an electric signal generated from the first contact part, and an electric signal generated from the second contact part, The water solenoid valve is opened and the water return solenoid valve is opened It characterized in that it comprises a controller that.

In addition, the bimetal may take the form of a rod extending in the longitudinal direction of the bypass pipe, bent in the right and left direction in response to the water temperature, with the upstream end thereof being fixed by the fixed support, And is connected to the contact portion.

Further, a connecting member is fixed to both sides of the downstream side end of the bimetal, and the first contact portion comprises: A pair of terminal portions which are connected to each other by a bimetal connection member curved in one direction to generate a signal are disposed to be spaced apart from each other on a surface facing the bimetal, 2 contact points; And a pair of terminal portions which are connected to each other by the other connecting member of the bimetal bent in the other direction to generate a signal are disposed apart from each other on the surface facing the bimetal .

The water-saving system using the bimetallic sensor of the present invention and the water-supply system having the water-saving device remained in the hot water pipe after completion of the hot water supply, and the cooled water was reheated by the boiler when the hot water was supplied next time Since there is no water to be discarded because the temperature is low, water resources can be saved greatly, and the structure is simple and there is no fear of failure.

FIG. 1 is a structural diagram showing a total construction of a water supply system having a water saving device according to an embodiment of the present invention.
2 is a schematic view of a water saving device using a bimetallic sensor according to an embodiment of the present invention.
3 is a block diagram for explaining the operation principle of the water saving device shown in FIG.
4 to 6 are views for explaining the operation of the water saving device shown in FIG.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing a total structure of a water supply system 40 having a water saving device 27 according to an embodiment of the present invention.

Referring to the drawings, a water supply system 40 according to the present embodiment includes a boiler 11 for receiving cold water supplied from a building exterior through a water supply pipe 13 and for sending heated hot water to a distributor 15, A plurality of hot water pipes 17 and a heating pipe 19 connected to the distributor 15 and another water supply pipe 21 and a hot water supply pipe 17 branched from the water supply pipe 13, A mixed water pipe 28 for passing the mixed water in which the hot water is mixed and a mixed water pipe 28 for receiving the mixed water that has passed through the mixed water pipe 28 and guiding to the outflow pipe 35 or returning it to the water return pipe 23, And an apparatus 27.

The water saving device 27 basically returns the mixed water to the boiler 11 through the water return pipe 23 when the temperature of the mixed water that has passed through the mixed water pipe 28 is lower than the set temperature, (Not shown) through the water outlet pipe 35 when the temperature is higher than the set temperature.

That is, the water-saving device 27 operates when the user turns the handle of the water supply to the hot water, but when the water in the cold state is discharged from the hot water supply pipe as described above, the cold water does not flow into the water supply port, 23 to the boiler (11). When the temperature of the water received through the mixed water pipe 28 is lower than the set temperature, the water is returned to the boiler 11 without being poured through the water outlet pipe 35 so that the boiler 11 reheats the water, It saves.

The heating pipe 19 supplies hot water to the heating pipe provided at the floor of the room. The hot water after heating the floor is returned to the boiler 11 through the heating water return pipe 25 and then heated again to move to the distributor 15. [

The water supply pipe 21 is branched from the water supply pipe 13 that enters the boiler 11 and is connected to the hot water supply pipe 17. A combined chamber (not shown) in which hot water and cold water are combined may be applied to a junction point between the water supply pipe 21 and the hot water supply pipe 17.

The boiler 11 may be a general household boiler or a large boiler of a central burner apartment. The type and / or capacity of the boiler 11 may vary.

In addition, the water pipe 35 is connected to a water supply (not shown) extending to a bathroom, kitchen, or the like and installed in a bathtub, a washstand, or a sink, so that water at a proper temperature is supplied through the water supply. Before the water supply, hot water and cold water are supplied at the same time, and water of a desired temperature can be supplied by controlling the handle of the water supply.

The water saving device 27 uses the principle of bimetal and includes a control signal generating section 29, an outflow solenoid valve 31, and a water return solenoid valve 33. The control signal generator 29 senses the temperature of water and selectively opens the outflow solenoid valve 31 and the return water solenoid valve 33. The outflow solenoid valve 31 and the return water solenoid valve 33 are normally closed type valves.

FIG. 2 is a view showing a schematic configuration of a water saving device 27 using a bimetallic sensor according to an embodiment of the present invention.

As shown in the figure, the water-saving device 27 according to the present embodiment is provided in the side of the mixed water pipe 28, and is provided with a water- A bimetal part 29b provided inside the bypass pipe 37 and deformed in response to water temperature of mixed water flowing around the bimetal part 29b; A second contact portion 29f positioned on the opposite side of the first contact portion 29e and an outflow solenoid valve 31 provided on the outflow pipe 35, A return water solenoid valve 33 provided in the water return pipe 23 and a controller 39 in FIG. 3 for controlling the water outlet solenoid valve 31 and the water return solenoid valve 33.

Part of the mixed water that has flowed through the mixed water pipe 28 enters the bypass pipe 37, changes the bimetal part 29b, and then is added back to the main flow.

The bimetal part 29b is made of metal having different coefficients of thermal expansion and is joined to the bypass tube 37 at one end thereof by a fixed support 29a. The other end of the bimetal part 29b is a free end. That is, when the bimetal part 29b is operated, the other end moves as shown in FIG. 5 or 6 and physically contacts the first and second contact parts 29e and 29d.

When the temperature of the mixed water is higher than the set temperature, the bimetal part 29b is bent to the left in the drawing and contacts the first contact part 29e. When the temperature of the mixed water is lower than the set temperature, the bimetal part 29b is bent in the opposite direction, Touch.

Connection members 29c and 29d are formed on both side surfaces of the free end of the bimetal part 29b. The connecting members 29c and 29d are conductive members and are connected to the two terminals 29m which are respectively formed in the first and second contact portions 29e and 29f and are electrically disconnected to connect the terminals 29m .

An electric signal is generated as the terminal 29m is connected and the electric signal 29m is transmitted to the controller 39 through the signal transmission line 29k.

The outflow solenoid valve 31 is opened when a signal is generated from the first contact portion 29e to discharge the mixed water to the outflow pipe 35. The return water solenoid valve 33 is opened when a signal is generated at the second contact portion 29f to lead the mixed water (whose temperature is lower than the set value) to the return pipe 23.

FIG. 3 is a block diagram for explaining the operation principle of the water saving device 27 shown in FIG.

If the bimetal portion 29b positioned between the first and second contact portions 29e and 29f is bent in the direction of arrow a by the temperature of the peripheral mixed water (higher than the set temperature), the bimetal portion 29b The first contact portion 29e is connected to the connection member 29c. When the connection member 29c contacts the first contact portion 29e and the terminal 29m is electrically connected, the controller 39 operates to open the outgoing solenoid valve 31. [

When the temperature of the mixed water is lower than the set temperature and the bimetallic portion 29b is bent in the direction opposite to the direction of the arrow a electric signals are generated at the second contact portion 29f, (33).

Figs. 4 to 6 are views for explaining the operation of the water saving device 27 shown in Fig. 2. Fig.

Referring to Fig. 4, it can be seen that two terminals 29m in a mutually disconnected state are located on the opposing face of the first contact portion 29e opposite to the connecting member 29c. The terminal 29m waits in an electrically short-circuited state, and is electrically connected by contact with the connecting member 29c as shown in Fig. When the terminal 29m is connected, an electrical signal is generated from the first contact portion 29e. The electric signal is transmitted to the controller 39 as described above.

Two terminals 29m are also formed on the facing surface of the second contact portion 29f facing the connecting member 29d. The terminals 29m are also separated from each other and are connected by contact with the connecting member 29d to cause the second contact portion 29f to generate an electric signal.

The controller 39 operates by an electric signal provided from the first contact portion 29e or the second contact portion 29f to open the outgoing solenoid valve 31 and the return water solenoid valve 33. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

11: boiler 13,14: water pipe
15: distributor 17: hot water pipe
19: Heating pipe 21: Water supply pipe
23: return pipe 25: heating water return pipe
27: water saving device 28: mixed water pipe
29: Control signal generator 29a:
29b: bimetal part 29c, 29d: connection member
29e: first contact portion 29f: second contact portion
29k: signal transmission line 29m: terminal
31: Outgoing solenoid valve 33: Returned solenoid valve
35: Outflow pipe 37: Bypass pipe
39: controller 40: water supply system

Claims (7)

A mixed water pipe through which mixed water mixed with cold water and hot water flows, an outflow pipe for taking over the mixed water supplied through the mixed water pipe and guiding it to water supply, Wherein the mixed water is guided to the water return pipe when the temperature of the mixed water is lower than the set value in response to the temperature of the mixed water flowing to the water outlet pipe,
A bypass pipe located at a side of the mixed water pipe and passing mixed water flowing through the mixed water pipe into the mixed water pipe;
A bimetal part installed inside the bypass pipe and deforming in response to a water temperature of mixed water flowing around the bimetal part;
A first contact part installed at one side of the bimetal part and sending a water out signal by the bimetal part deformed to one side due to the water temperature of the mixed water being higher than a preset value;
A second contact part provided on the other side of the bimetal part and sending a return signal to the bimetal part deformed in the opposite direction due to the water temperature of the mixed water being lower than the set value;
An outflow solenoid valve installed in the water pipe;
A return water solenoid valve installed in the water return pipe;
A controller for receiving an electric signal generated from the first contact portion and an electric signal generated from the second contact portion to deliver the outgoing solenoid valve and the return water solenoid valve respectively to open the outgoing solenoid valve or open the return water solenoid valve Wherein the bimetallic sensor is a water-saving device using a bimetal sensor. The method according to claim 1,
The bimetal is formed in the shape of a rod extending in the longitudinal direction of the bypass pipe and bent in the left and right direction in response to the water temperature while the upstream end thereof is fixed by the fixed support, The water-saving device using the bimetallic sensor. 3. The method of claim 2,
A connecting member is fixed to both sides of the downstream side end of the bimetal,
The first contact portion comprises:
And a pair of terminal portions which are connected to each other by a bimetal connection member curved in one direction to generate a signal are disposed apart from each other on a surface facing the bimetal,
The second contact portion comprises:
And a pair of terminal portions which are connected to each other by the other connecting member of the bimetal bent in the other direction to generate a signal are disposed apart from each other on the surface facing the bimetal A water-saving device using a bimetallic sensor. A boiler for heating the partially supplied cold water through the water supply pipe and discharging the heated hot water through the hot water supply pipe;
And a bypass pipe of a mixed water pipe having a bypass pipe at a side of the water pipe for passing mixed water in which some of the cold water supplied through the water pipe is mixed with hot water heated by the boiler, And a water-saving device for sending the mixed water to the boiler through a return pipe when the temperature of the mixed water is lower than the set value in response to the temperature. 5. The method of claim 4,
Wherein the water-saving device comprises:
A bimetal part installed inside the bypass pipe and deforming in response to water temperature of mixed water flowing around the bimetal part,
A first contact part installed at one side of the bimetal part and sending a water out signal by the bimetal part deformed to one side due to the water temperature of the mixed water being higher than the set value,
A second contact part provided on the other side of the bimetal part and sending a return signal to the bimetal part deformed in the opposite direction due to the water temperature of the mixed water being lower than the set value,
An outflow solenoid valve installed in the water pipe,
A water return solenoid valve installed in the water return pipe,
An electric signal generated from the first contact portion and an electric signal generated from the second contact portion are transmitted to the outgoing solenoid valve and the return water solenoid valve respectively to open the outgoing solenoid valve or open the return water solenoid valve And a controller. 6. The method of claim 5,
The bimetal is formed in the shape of a rod extending in the longitudinal direction of the bypass pipe and bent in the left and right direction in response to the water temperature while the upstream end thereof is fixed by the fixed support, Is connected to the water supply system. The method according to claim 6,
A connecting member is fixed to both sides of the downstream side end of the bimetal,
The first contact portion comprises:
And a pair of terminal portions which are connected to each other by a bimetal connection member curved in one direction to generate a signal are disposed apart from each other on a surface facing the bimetal,
The second contact portion comprises:
And a pair of terminal portions which are connected to each other by the other connecting member of the bimetal bent in the other direction to generate a signal are disposed apart from each other on the surface facing the bimetal .
KR1020120136498A 2012-11-28 2012-11-28 Water saving device using Bimetal sensor and Water supplying system having the device KR20140068694A (en)

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KR1020120136498A KR20140068694A (en) 2012-11-28 2012-11-28 Water saving device using Bimetal sensor and Water supplying system having the device

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Application Number Priority Date Filing Date Title
KR1020120136498A KR20140068694A (en) 2012-11-28 2012-11-28 Water saving device using Bimetal sensor and Water supplying system having the device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757311A (en) * 2014-12-19 2016-07-13 上海科勒电子科技有限公司 Identification method for control gestures of faucet
CN106015700A (en) * 2016-07-14 2016-10-12 宁波顺源电子科技有限公司 Touch faucet unit and water supply system with touch faucet unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757311A (en) * 2014-12-19 2016-07-13 上海科勒电子科技有限公司 Identification method for control gestures of faucet
CN106015700A (en) * 2016-07-14 2016-10-12 宁波顺源电子科技有限公司 Touch faucet unit and water supply system with touch faucet unit

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