KR20190066278A - Faucet having water recirculation constitution - Google Patents

Abstract

It is an object of the present invention to provide a faucet having a hot water circulation structure which is easy to install even in a narrow space, while reducing the cost and time required for installing the hot water circulation valve. The water faucet having the hot water circulation structure according to the present invention includes at least one hot water outlet and at least one water outlet through which the hot water flows out. The faucet includes a hot water passage through which hot water flows, a direct water passage through which the hot water flows, A circulating flow path connecting the hot water flow path and the direct flow path, and a valve member for opening and closing the circulation flow path.

Description

[0002] Faucet having water recirculation constitution [0003]

The present invention relates to a faucet having a hot water circulation structure, and more particularly to a faucet having a hot water circulation structure for preheating hot water without using hot water.

Generally, to use hot water, hot water can be used only when the unheated water inside the piping connected to the boiler or water heater is removed.

The recirculation system, which was developed to save water that has been discarded, is a new type of recirculation system that requires separate return pipes in addition to the direct and hot water piping, and between the already existing hot and cold water piping There is a hot water circulation system in which hot water is circulated using a circulation valve and a circulation pump to preheat the hot water.

In the hot water circulation system using the circulation valve, an electrically operated valve is applied or a thermal wax or bimetal operated valve is applied. Or a check valve system that is opened or closed by the pressure of circulating warm water is applied.

1 is a view showing a structure in which a conventional hot water circulation valve is coupled to a water receiver.

The water inlet 40 is provided with a hot water side connection port 41, which is a flow path through which hot water flows, and a direct water side connection port 42, which is a flow path through which the direct water flows.

One side of the hot water side connection pipe (60) and the direct water side connection pipe (70) are coupled to the hot water side connection port (41) and the direct water side connection port (42). The hot water side connection pipe (60) and the direct water side connection pipe (70) may be generally formed of a corrugated pipe or a flexible hose.

The hot water circulation valve 50 includes a hot water inflow section 51 as an inlet through which the hot water flows, a hot water discharge section 52 connected to the hot water side connection pipe 60 for discharging the hot water to the water receiving section 40, And a direct discharge outlet 54 connected to the direct-side connection pipe 70 for discharging the direct water into the water receiver 40.

A hot water supply pipe 13 is connected to the hot water inflow part 51 and a direct water supply pipe 14 is connected to the direct water inflow part 53.

In order to install the hot water circulation valve 50 in such a structure, it is necessary to connect the hot water side pipe (not shown), the direct water supply pipe 14 and the direct water side connection pipe The hot water inlet pipe 51 is connected to the hot water supply pipe 13 and the direct water inlet pipe 53 is connected to the direct water pipe 14 .

One side end of the hot water side connection pipe 60 and the straight water side connection pipe 70 are connected to the hot water discharge port 52 and the direct discharge water discharge port 54 and the hot water side connection pipe 60 and the direct water side connection pipe 70 are coupled to the hot water side connection port 41 and the direct water side connection port 42, respectively.

However, when this structure is combined, it is necessary to remove the existing hot water side piping and the direct water side piping, and to connect the hot water side connection pipe (60) and the direct water side connection pipe (70) There is a problem in that it is not only inconvenient but also an additional cost is required to connect the piping.

International Publication No. WO 2016/040849 is disclosed as a prior art related to a hot water recirculation system in which the hot water circulation valve is coupled to a water supply.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a faucet having a hot water circulation structure that is easy to install even in a narrow space, while reducing the cost and time required for installing the hot water circulation valve .

In addition, by simplifying the piping connection structure connected to the faucet, it is possible to save space required for installation of the hot water circulation valve, to increase the utilization of the space where the faucet is installed, and to have a hot water circulation structure for easy maintenance of the faucet and hot water circulation valve It is intended to provide a faucet.

In addition, it is possible to simplify the construction of the hot water circulation valve and to increase the flow rate of hot water circulation, and to provide a hot water circulation structure capable of quickly blocking the outflow of hot water mixed with direct water when using direct water during circulation of hot water The present invention has been made in view of the above problems.

A water faucet having a hot water circulation structure according to the present invention for realizing the above object includes hot water and at least one outflow port through which hot water flows out, And a valve member for opening and closing the circulation flow passage is provided inside the circulation flow passage for connecting the hot water passage and the direct flow passage.

The valve member may be configured to open the circulation channel by the pressure of the hot water circulated when the hot water is circulated and to close the circulation channel when the hot water or direct water flows out through the outlet.

A housing having the hot water passage, the direct water passage and the circulation passage formed therein; And the valve member may be inserted into the direct flow passage.

The valve member may further include a valve body that opens and closes one end of the circulation channel and an elastic member that elastically supports the valve body so as to be in close contact with one end of the circulation channel.

Wherein the valve member is provided with a circulation channel which is opened by the pressure of circulating hot water when the hot water is circulated and a differential pressure is generated so that the circulation channel is closed by direct pressure at the time of direct water exit, And a pressure plate which is reciprocally moved integrally with the valve body.

A space may be formed between the outer surface of the valve body and the pressure receiving plate and the inner surface of the housing in which the direct flow path is formed to allow fluid flow.

One end of the elastic member is supported by a moving body extending rearward from the pressure plate and the other end of the elastic member is supported by a fixed body separated from the moving body and coupled to the inside of the housing .

The pressure plate may have a flange shape protruding outward of the moving body.

A diaphragm may be connected between the outer end of the pressure plate and the inner surface of the housing so that direct water or hot water can flow in the front and rear directions of the pressure plate.

A hot water connection part connected to the outflow port to which hot water flows and a direct connection part connected to the outflow port to allow direct water to flow; Wherein the hot water passage includes a hot water inflow portion connected to a hot water supply pipe provided outside the water receiving unit for receiving hot water, and an on-export water portion connecting the hot water inflow portion and the hot water connection portion; The direct water flow path may include a direct water inflow portion connected to a direct-food supply pipe provided outside the water faucet and to which the direct water flows, and a direct discharge water portion connecting the direct water inflow portion and the direct water connection portion.

The hot water connection portion and the hot water outlet portion are coupled by a fastening member or welding, and the direct connection portion and the direct outlet water portion may be coupled by a fastening member or welding.

The valve member may be formed of a bimetal in which the circulation flow path is opened when the hot water is below a predetermined temperature when the hot water is circulated and the circulation flow path is shut off when the hot water is at a predetermined temperature or more.

According to the present invention, it is possible to reduce the cost and time required for installing the hot water circulation valve, and to easily install the hot water circulation valve in a narrow space by integrally connecting the hot water circulation valve to the inside of the power receiver.

Also, by simplifying the piping connection structure connected to the faucet, the space required for installing the hot water circulation valve can be saved, the utilization of the space where the faucet is installed can be improved, and the faucet and the hot water circulation valve can be easily maintained.

By providing the water pressure plate in the direct water passage, the communication passage is opened by the pressure of the circulating warm water when the hot water is circulated, and when the direct water is used, the differential pressure is generated so that the connection passage is closed by the pressure of the direct water, The construction of the hot water circulation valve can be simplified, and the manufacturing cost can be reduced and the material cost can be reduced.

In addition, when the hot water is circulated, the valve body is spaced at a sufficient distance from one end of the circulation flow path, so that the flow rate of circulating hot water is increased and the preheating time of hot water can be shortened.

Further, even when direct water is used during circulation of the hot water, the valve body quickly closes the circulating flow path by the differential pressure acting on the front and rear of the pressure receiving plate, so that the problem that the hot water is mixed with the direct water and supplied to the user can be prevented .

1 is a view showing a structure in which a conventional hot water circulation valve is coupled to a water receiver;
FIG. 2 is a schematic diagram of a hot water circulation system to which a faucet having a hot water circulation structure according to the present invention is applied
3 is a view showing a state in which the hot water circulation structure according to the present invention is integrally coupled to the inside of a faucet
4 is a view showing a state in which the hot water circulation valve shown in Fig. 3 is opened
5 is a view showing a state in which a hot water circulation valve is closed in a faucet having a hot water circulation structure shown in Fig. 4
6 is a view showing a state in which a hot water circulation valve is opened in a faucet having a hot water circulation structure according to another embodiment of the present invention
7 is a view showing a state in which the hot water circulation valve is closed in a faucet having a hot water circulation structure shown in Fig. 6

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a faucet having a hot water circulation structure according to the present invention will be described in detail with reference to the accompanying drawings.

2, a hot water circulation system 1 to which a faucet having a hot water circulation structure according to the present invention is applied includes a direct milk feed inlet 11 branched from the feed water pipe 10, A hot water discharge pipe 12 through which the hot water heated by the hot water supply unit 20 is discharged and a hot water discharge pipe 12 through which hot water passing through the hot water discharge pipe 12 is circulated A hot water supply pipe 13 connected to an outlet of the circulation pump 30 for supplying hot water to a water outlet 210 of the water receiver 200 and a water pipe connected to the water pipe 10, A direct water supply pipe 14 for supplying direct water to the water outlet 210 of the water receiver 200 and a water supply pipe 14 for circulating hot water between the water supply pipe 13 and the direct water supply pipe 14, And a hot water circulation valve 100 connected to the hot water circulation valve 100.

The hot water supply unit 20 may be any type of hot water supply unit as long as it can supply hot water to the user such as a boiler having hot water and a heating function, a water heater for generating hot water, a hot water tank for storing hot water, have.

The circulation pump 30 may be provided outside the hot water supply unit 20 or may be provided inside a device such as a boiler and a water heater.

The hot water circulation valve 100 is integrally coupled to the inside of the power receiver 200 for circulating hot water between a hot water supply pipe 13 and a direct water supply pipe 14 already installed in a house, The flow of water between the hot water supply pipe 13 and the direct water supply pipe 14 is blocked and when the hot water and direct water are not used, the hot water supply pipe 13 To the direct water supply pipe 14 so as to circulate the hot water.

The hot water circulation valve 100 is integrally coupled to the inside of the water receptacle 200. In order to install the hot water circulation valve 100, the water receptacle 200 in which the hot water circulation valve 100 is installed may be integrally replaced . Therefore, since the structure for assembling the hot water circulation valve 100 between the faucet 200, the hot water supply pipe 13 and the direct water supply pipe 14 is not provided, the cost and time required for installing the hot water circulation valve 100 can be reduced, The installation of the hot water circulation valve 100 is facilitated even in a narrow space.

Referring to FIG. 3, the structure of the water receiver 200 in which the hot water circulation valve 100 is integrally coupled will be described. The arrows shown in Fig. 3 show the direction of water flow.

The water faucet 200 according to the present invention includes a hot water circulation valve 100, a hot water connection part 220 connected to the hot water discharge part 112 of the hot water circulation valve 100, (Not shown) for opening / closing a valve 250 provided inside the user for the purpose of discharging the running water or hot water, 240).

3, the outflow port 210 and the lever 240 are formed of one outflow port and lever so that the direct water and the hot water can flow in common. However, in order to separate the direct water and the hot water separately, two outlets and two outlets Lever.

The hot water inflow part 111 connected to the hot water discharge part 112 is connected to the hot water supply pipe 13 and the direct water inflow part 114 connected to the direct water discharge part 116 is connected to the direct water supply pipe 14 .

FIG. 4 is a detailed view of the configuration of the hot water circulation valve 100 shown in FIG. 3. The configuration of the hot water circulation valve 100 will be described with reference to FIG.

The hot water circulation valve 100 integrally coupled to the inside of the water receiver 200 includes a housing 110 connected between the hot water supply pipe 13 and the direct water supply pipe 14, And may be constituted by parts for controlling the circulation of the hot water by using the differential pressure. In this case, the housing 110 may be formed of a single component integrated with the hot water connection part 220 and the direct connection part 230, or may be constructed such that separate components are coupled to each other.

In the housing 110, hot water passages 111 and 112 connected to the hot water supply pipe 13, direct water passages 114, 115 and 116 connected to the direct water supply pipe 14, and hot water passages 111 and 112 and direct water passages 114, 115 and 116 And a circulation flow path 113 for circulating the hot water is formed.

The hot water passages 111 and 112 include the hot water inlet 111 and the hot water outlet 112 for supplying the hot water introduced through the hot water inlet 111 to the outlet 210 of the power receiver 200 .

A screw thread may be formed at a corresponding portion of the hot water inflow portion 111 and the hot water supply pipe 13 when the hot water inflow portion 111 and the hot water supply pipe 13 are coupled, Can be formed and coupled.

The circulation flow passage 113 branches to one side of the hot water flow paths 111 and 112 and communicates with the direct flow paths 114, 115 and 116 so that the hot water passing through the hot water flow paths 111 and 112 during circulation of hot water flows toward the direct flow paths 114, 115, Lt; / RTI >

The direct water passages 114, 115 and 116 include a direct water inlet 114 connected to the direct water supply pipe 14 to receive direct water, a connection oil path 115 connected to the direct water inlet 114, To the water outlet 210 of the water receptacle 200. The direct water outlet portion 116 of the water receptacle 200 is provided with a direct water outlet portion 116,

A thread may be formed at a portion corresponding to the coupling of the direct water inlet portion 114 and the direct water supply pipe 14 and a thread may be formed at a corresponding portion of the direct water outlet portion 116 when the direct water connection portion 230 is engaged .

(Not shown) in a state in which the hot water inflow part 111 and the hot water supply pipe 13 are in contact with each other. In the state where the direct water inflow part 114 and the direct water supply pipe 14 are in contact with each other, Time).

The hot water outlet 112, the hot water outlet 220, the direct outlet water outlet 116, and the direct water outlet 230 may be coupled to each other by fastening members or by welding. When the hot water circulation valve 100 is integrally coupled to the inside of the faucet 200 as described above, the faucet 200 having the hot water circulation valve 100 integrally coupled thereto is connected to the hot water supply pipe 13 and the direct water supply pipe 14, it is possible to simplify the installation process, simplify the piping structure connected thereto, reduce the installation cost, and increase the utilization of the space around the hot water circulation valve 100 and the water receptacle 200 have.

A valve member for opening and closing the circulation flow path 113 is inserted into the direct flow paths 114, 115, and 116.

The valve member includes a valve body 120 that is in close contact with a valve seat 117 formed at one end of the circulation flow passage 113 or spaced apart from the valve seat 117 to open and close the circulation flow passage 113, A shaft 130 extending rearward from the rear end surface of the shaft 120 and a hydraulic pressure plate 140 integrally formed at a rear end of the shaft 130 and a moving body 150 extending rearward from the hydraulic pressure plate 140 An elastic member 170 which is supported at one side of the pressure plate 140 and the moving body 150 and an elastic member 170 which is coupled to the inside of the housing 110 and separated from the moving body 150, And a fixing body 160 to which the other side end of the fixing member 160 is supported.

G1 and G2 are formed between the outer surface of the valve body 120 and the pressure plate 140 and the inner surface of the housing 110 where the connection passage 115 is formed, do. The valve body 120 and the pressure plate 140 are connected to each other by a shaft 130 having a diameter smaller than the diameter of the valve body 120 and the pressure plate 140, The connection passage 115 is formed in a space between the valve body 120 and the pressure receiving plate 140. As shown in FIG.

The pressure plate 140 has a flange shape protruding outward from the moving body 150 so that the pressure of the direct water flowing through the direct water inlet 114 at the time of use of the direct water can be adjusted by the pressure plate 140 The pressure is applied so that the valve body 120, which is connected by the hydraulic pressure plate 140 and the shaft 130, is brought into close contact with the valve seat 117.

The elastic member 140 elastically supports the pressure plate 140 so that the valve body 120 connected to the pressure plate 140 and the shaft 130 is urged to come in close contact with the valve seat 117 .

The valve body 120, the shaft 130, the pressure plate 140, the moving body 150, the fixed body 160, and the elastic member 170 are installed on one side of the housing 110, 110 are formed in the upper and lower portions of the base plate 110, respectively. An O-ring 161 is coupled to the outer circumferential surface of the fixed body 160 to maintain airtightness between the inner surface of the housing 110 and the inner surface of the housing 110. Accordingly, the valve body 120, the shaft 130, the pressure plate 140, the moving body 150, the fixed body 160, and the elastic member 170 are connected to the housing 110 through the opening 118, The assembling of the hot water circulation valve 100 is completed only by pushing the hot water circulation valve 100 inward. Thus, the manufacturing process of the hot water circulation valve 100 can be simplified.

4, when the hot water is circulated, the circulation pump 30 is operated and the pressure P3 inside the circulation flow path 113 is formed to be larger than the pressure P2 inside the connection flow path 115, The valve body 120 is pushed in the flow direction of hot water so that the circulation flow passage 113 is opened.

In this case, the valve body 120 is spaced rearward from the valve seat 117 formed at one end of the circulation flow passage 113 at a sufficient distance, and passes through the spaces G1 and G2 and the connection passage 115 Since the hot water is circulated, compared to the hot water circulation valve according to the related art, the flow rate of circulating hot water is increased, and the preheating time of the hot water can be shortened.

5, direct water pressure P1 acting on the rear end surface of the hydraulic pressure plate 140 is transmitted to the connection passage 115 when hot water or direct water is used, in particular, when direct water is used during circulation of hot water. And the valve body 120 is brought into close contact with the valve seat 117 by pushing the pressure receiving plate 140 and the valve body 120 in the direct flow direction so that the circulation flow path 113 ) Is closed.

By using the differential pressure P1-P2 of the pressure acting on the front and rear sides of the pressure plate 140 as described above, the circulation flow path 113 can be quickly closed when the direct water is used, It is possible to prevent the problem that the hot water is mixed with the direct water in the case of using it.

In this case, the hot water passes through the hot water passages 111 and 112 and then flows to the hot water connection part 220, and the direct water flows to the direct connection part 230 after passing through the direct water passages 114, 115 and 116.

6 and 7, a water faucet having a hot water circulation structure according to another embodiment of the present invention will be described.

The hot water circulation valve 100-1 according to the present embodiment is a modification of the configuration of the embodiment described above. The hot water circulation valve 100-1 according to the present embodiment is configured such that direct water or hot water can flow in the front- And a diaphragm 180 is connected between the outer end of the pressure plate 140 and the inner surface of the housing 110. The other structures and actions are the same as those of the first And can be applied in the same manner as the embodiment.

Both ends of the diaphragm 180 are fixed to the outer end of the pressure plate 140 and the inner surface of the housing 110 so that the diaphragm 180 can be elastically deformed by the differential pressure between the front and rear sides of the pressure plate 140.

According to the configuration of the present embodiment, the hydraulic pressure plate 140 is connected to the diaphragm 180 so that the hydraulic pressure plate 140 can be supported in a stable state. In comparison with the above-described embodiment, The cross-sectional area can be further widened, and the flow rate at which the hot water is circulated is further increased, so that the preheating time of the hot water can be shortened.

Meanwhile, in the above-described embodiment, the structure in which the valve body 120 opens and closes the circulation flow path 113 using the elastic force of the elastic member 170 is exemplified. However, the present invention is not limited to this, and a bimetal may be used.

That is, in the valve member, when the hot water is below a predetermined temperature during the circulation of the hot water, the circulation flow path 113 is opened, and when the hot water becomes a certain temperature or more, .

If the hot water circulation valves 100 and 100-1 are integrally formed in the water receiver 200, the cost and time required for installing the hot water circulation valves 100 and 100-1 can be reduced, and the hot water circulation valves 100 and 100 -1) is easy to install. In addition, by simplifying the piping connection structure connected to the water receiving unit 200, the space required for installing the water heating circulation valves 100 and 100-1 can be saved, and the utilization of the water receiving room 200 can be increased, Maintenance of the hot water circulation valves 100 and 100-1 is facilitated.

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, And this also belongs to the present invention.

10: direct water pipe 11: direct milk infusion
12: hot water discharge pipe 13: hot water pipe
14: direct water supply pipe 20: hot water supply part
30: circulation pump 100,100-1: hot water circulation valve
110: housing 111: hot water inlet
112: On exporting part 113: Circulation Euro
114: direct water inflow part 115:
116: direct discharge portion 117: valve seat
118: opening 120: valve body
130: shaft 140: pressure plate
150: moving body 160: fixed body
161: O-ring 170: Elastic member
180: diaphragm 200: faucet
210: Outlet 220: Hot water connection
230: direct connection part 240: lever
250: Valve

Claims (12)

In a faucet comprising at least one outlet for hot water and direct water,
A hot water flow path through which the hot water flows, a direct flow path through which the direct water flows, a circulation flow path connecting between the hot water flow path and the direct flow path, and a hot water circulation structure including a valve member for opening / The method according to claim 1,
Wherein the valve member opens the circulation flow passage by the pressure of the hot water circulated when the hot water is circulated and closes the circulation flow passage when the hot water or direct water flows out through the outflow port. Faucet with circulation structure The method according to claim 1,
A housing having the hot water passage, the direct water passage and the circulation passage formed therein; Wherein the valve member is inserted into the direct flow path. The method of claim 3,
Wherein the valve member further comprises a valve body which opens and closes one end of the circulation channel and an elastic member which elastically supports the valve body so as to be in close contact with one end of the circulation channel, 5. The method of claim 4,
Wherein the valve member is provided with a circulation channel which is opened by the pressure of circulating hot water when the hot water is circulated and a differential pressure is generated so that the circulation channel is closed by direct pressure at the time of direct water exit, And a water pressure plate reciprocally moved back and forth integrally with the valve body. 6. The method of claim 5,
Wherein a space is formed between the outer surface of the valve body and the pressure receiving plate and the inner surface of the housing in which the direct flow path is formed so as to allow fluid flow therethrough, 6. The method of claim 5,
Wherein one end of the elastic member is supported by a movable body extending rearward from the pressure plate and the other end of the elastic member is supported by a fixed body separated from the movable body and coupled to the inside of the housing A water tank having a hot water circulation structure 6. The method of claim 5,
Wherein the water pressure plate is formed in a flange shape protruding outward from the moving body. 6. The method of claim 5,
And a diaphragm is connected between the outer end of the pressure plate and the inner surface of the housing, wherein a diaphragm is connected to the pressure plate, A faucet The method according to claim 1,
A hot water connection part connected to the outflow port to which hot water flows and a direct connection part connected to the outflow port to allow direct water to flow;
Wherein the hot water passage includes a hot water inflow portion connected to a hot water supply pipe provided outside the water receiving unit for receiving hot water, and an on-export water portion connecting the hot water inflow portion and the hot water connection portion;
Wherein the direct water flow path comprises a direct water inflow portion connected to a direct-food supply pipe provided outside the water faucet and to which direct water flows, and a direct water discharge portion connecting the direct water inflow portion and the direct water connection portion. 11. The method of claim 10,
Wherein the hot water connection part and the hot water outlet part are coupled by a fastening member or welding and the direct connection part and the direct outlet water part are coupled by a fastening member or welding. The method according to claim 1,
Wherein the valve member is made of a bimetal which is opened when the hot water is below a predetermined temperature when the hot water is circulated and the circulating flow path is blocked when the hot water becomes a certain temperature or more A faucet equipped with

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