JP3165376U - Water purifier - Google Patents

Abstract

[PROBLEMS] To perform sterilization and washing with hot water inside a cold water supply pipe as a water supply pipe connected to each of a cooling tank and a heating tank and a hot water supply pipe, particularly on the side close to the faucet, at an appropriate time, due to back contamination Provided is a water purifier for suppressing bacterial growth. A cooling tank and a heating tank are provided. A cooling water supply pipe is connected to the cooling tank as a water supply pipe, and a hot water supply pipe is connected to the heating tank as a water supply pipe. An electromagnetic valve or a manual valve is provided in the vicinity of the downstream end of each of the cold water supply pipe and the hot water supply pipe, each downstream end is connected to a common faucet, and the hot water supply pipe is further connected to an electromagnetic valve or a manual valve. A branch is made on the upstream side, and its downstream end is connected to the upstream side of the electromagnetic valve or manual valve of the cold water supply pipe via a three-way valve. At an appropriate time, the flow path is switched between an electromagnetic valve or a manual valve and a three-way valve, and hot water at a temperature necessary for sterilization and washing is supplied from the heating tank to one or both of the hot water supply pipe and the cold water supply pipe. [Selection] Figure 1

Description

  The present invention relates to a purified water supply device that supplies purified water after cooling or heating.

  Various types of purified water supply devices have been conventionally provided for supplying purified water after cooling or heating.

  5 and 6 show a conventional general purified water supply device. First, the purified water supply device shown in FIG. 5 will be described.

  The purified water supply device 100 includes a cooling tank 101 that stores and cools purified water W, and a heating tank 102 that heats the purified water W, and connects the cooling water supply pipe 103 to the cooling tank 101 as a water supply pipe, A hot water supply pipe 104 is connected to the heating tank 102 as a water supply pipe. The cooling tank 101 is provided with a device for cooling it, and the heating tank 102 is provided with a device for heating it. However, these are well known and will not be described.

  Moreover, the conventional general water purifier includes a purifying section (not shown) composed of a membrane treatment tank and an activated carbon tank for purifying raw water, and the purified water purified in the purifying section is cooled with the cooling tank 101 and the heating tank. The purified water previously purified by a purification device (not shown) separate from the one supplied to 102 and the purified water supply device is stored in a purified water tank (not shown), There is one in which water is introduced into the cooling tank 101 and the heating tank 102, but the example shown in FIG. 5 is the former case.

  Further, in the water purifier 100, an electromagnetic valve or a manual valve 105, 106 is provided in the vicinity of the tip of each of the cold water supply pipe 103 and the hot water supply pipe 104, and the cold water supply pipe 103 and the hot water supply pipe 104 are provided. Each tip is connected to a common faucet 107.

  Thus, when the purified water supply device 100 supplies cooled purified water, it opens the electromagnetic valve or the manual valve 105 to supply water from the cold water supply pipe 103 to the faucet 107, and when supplying heated purified water. The electromagnetic valve or the manual valve 106 is opened and water is supplied from the hot water supply pipe 104 to the faucet 107.

Next, the purified water supply device shown in FIG. 6 will be described.
The purified water supply device and the purified water supply device shown in FIG. 5 are different in that the downstream ends of the cold water supply pipe 103 and the hot water supply pipe 104 are connected to separate faucets 110 and 111 in the purified water supply apparatus. is doing. In addition, since the other structure is the same as that of the water purifier shown in the said FIG. 5, the same code | symbol is attached | subjected to the same member and detailed description is abbreviate | omitted.

  Thus, when the purified water supply device 100 supplies cooled purified water, the electromagnetic valve or the manual valve 105 is opened to supply water from the cold water supply pipe 103 to the faucet 110, and when heated purified water is supplied. The electromagnetic valve or the manual valve 106 is opened to supply water to the faucet 111 from the hot water supply pipe 104.

  By the way, in the general purified water supply apparatus 100, purified water from which free residual chlorine, other dissolved substances, suspended substances and the like in tap water are removed is put in the cooling tank 101 and the heating tank 102. Minor but other nutrient sources of bacteria remain in the purified water. Therefore, bacteria that have entered the purified water supply device 100 from some route may propagate by feeding the nutrient source therein.

  Moreover, invasion from faucets 107, 110, and 111 that discharge water is one of the invasion paths of bacteria into the purified water supply device 100. That is, floating bacteria in the air enter through the openings of the faucets 107, 110, and 111, and gradually spread to the back of the cold water supply pipe 103 and the hot water supply pipe 104 while breeding, which is so-called reverse contamination.

  In addition, most of the water supply pipes of the water purifier 100, that is, the cold water supply pipe 103 and the hot water supply pipe 104 are made of resin or rubber as a raw material, and in this case, bacteria easily propagate on the surface. In addition, since the plasticizer contained in the material serves as nutrients for the bacteria, many bacteria grow in the cold water supply pipe 103 and the hot water supply pipe 104, particularly in the portions near the faucets 107, 110, and 111. Easy to be.

  In addition, for these reasons, the material of the cold water supply pipe 103 and the hot water supply pipe 104 is also replaced with stainless steel or the like. However, resin or rubber is used for electromagnetic valves or parts of the manual valves 105 and 106. For this reason, it cannot produce a great effect for the cost. In addition to this, an ultraviolet sterilizer is also installed in the cold water supply pipe 103 and the hot water supply pipe 104, but bacteria grown in the downstream portion after the electromagnetic valves or manual valves 105 and 106 are removed. It cannot be sterilized and is not a counter-pollution measure.

  Thus, many bacteria are likely to grow inside the cold water supply pipe 103 and the hot water supply pipe 104 in the purified water supply device 100, particularly near the faucets 107, 110, 111. Not taken.

This invention has been made in view of the above, the proper person of time, on the side, especially near the faucet in the cold water supply pipe and the hot water supply tube as the water supply pipe connected to each of the heating tank and the cooling tank portion of the interior of the hot water by sterilizing and washing a row of Uyo Uninashi, is intended to provide a water purifier feeder when taken to be able to inhibit the growth of bacteria by back contamination have.

Thus, the gist of the present invention resides in the water purifiers (1) to (4) below.

(1) A cooling tank for storing and cooling the purified water and a heating tank for heating the purified water are provided. While connecting a chilled water supply pipe to the cooling tank as a water supply pipe, Then, in the purified water feeder formed by connecting the hot water supply pipe, the cold water supply pipe and the hot water supply pipe A solenoid valve or a manual valve is provided in the vicinity of the downstream end of each, and the cold water supply pipe and the front The respective downstream ends of the hot water supply pipes are connected to a common faucet, and the hot water supply pipe is further provided therein. Branch off the upstream side of the solenoid valve or manual valve and connect the downstream end of the cold water supply pipe. Connect to the upstream side of the solenoid valve or manual valve and provide a three-way valve at the connection part A solenoid valve or a manual valve and a connecting portion provided in each of the cold water supply pipe and the hot water supply pipe at a time The temperature required for sterilization washing from the heating tank is switched with the three-way valve provided in the minute. That the hot water is allowed to flow through one or both of the hot water supply pipe and the cold water supply pipe A featured water purifier.

(2) A cooling tank for storing and cooling the purified water and a heating tank for heating the purified water, While connecting a chilled water supply pipe to the cooling tank as a water supply pipe, Then, in the purified water feeder formed by connecting the hot water supply pipe, the cold water supply pipe and the hot water supply pipe A solenoid valve or a manual valve is provided in the vicinity of the downstream end of each, and the cold water supply pipe and the front The respective downstream ends of the hot water supply pipes are connected to a common faucet, and the hot water supply pipe is further provided therein. Branch off the upstream side of the solenoid valve or manual valve and connect the downstream end of the cold water supply pipe. It is connected to the upstream side of the solenoid valve or the manual valve and is connected to the branch portion of the hot water supply pipe. Is equipped with a manual valve and, at an appropriate time, the electric power provided to each of the cold water supply pipe and the hot water supply pipe. Use a magnetic valve or manual valve and a solenoid valve or manual valve provided at the branch of the hot water supply pipe. The path is switched, and hot water having a temperature required for sterilization washing is supplied from the heating tank to the hot water supply pipe and the A purified water feeder characterized by flowing through either or both of the cold water supply pipes.

(3) A cooling tank for storing and cooling the purified water and a heating tank for heating the purified water are provided. While connecting a chilled water supply pipe to the cooling tank as a water supply pipe, In the purified water supply device to which the hot water supply pipe is connected, in the vicinity of the downstream end of the cold water supply pipe An electromagnetic valve or a manual valve is provided in the section, and its downstream end is connected to a faucet. Connect the downstream end of the pipe to the upstream side of the solenoid valve or manual valve of the cold water supply pipe and A three-way valve is provided at the connection part, and at a suitable time, a three-way valve provided at the connection part of the hot water supply pipe is provided. The flow path is switched, and hot water at a temperature necessary for sterilization washing is supplied from the heating tank to the hot water supply pipe. A purified water supply device characterized by flowing in the cold water supply pipe.

(4) A cooling tank for storing and cooling the purified water and a heating tank for heating the purified water are provided. While connecting a chilled water supply pipe to the cooling tank as a water supply pipe, In the purified water supply device to which the hot water supply pipe is connected, in the vicinity of the downstream end of the cold water supply pipe The solenoid valve or the manual valve is provided in the section, the downstream end thereof is connected to the faucet, and the hot water supply pipe Is connected to the upstream side of the electromagnetic valve or manual valve of the cold water supply pipe, and further to the hot water In the vicinity of the downstream end of the supply pipe, an electromagnetic valve or a manual valve is provided, and in the cold water supply pipe Provide an electromagnetic valve or a manual valve in the upstream part of the connecting part at the downstream end of the hot water supply pipe, At a certain time, an electromagnetic valve or a manual valve provided in each of the cold water supply pipe and the hot water supply pipe is also provided. The hot water supply pipe is used to switch hot water at a temperature necessary for sterilization and washing from the heating tank. And a purified water supply device which is made to flow through the cold water supply pipe.

The present invention is configured as described above, and at an appropriate time, sterilization by hot water inside the cold water supply pipe as the water supply pipe connected to the cooling tank and the heating tank and the hot water supply pipe, particularly in the portion near the faucet. since the cleaning is obtained without the power sale row of Uyo, it is capable to inhibit the growth of bacteria by back contamination. Further, the cold water supply pipe and the hot water supply pipe can be sufficiently sterilized and washed with conventional inexpensive resin and rubber without using expensive materials such as stainless steel. In addition, it is not necessary to install an ultraviolet sterilizer on the cold water supply pipe and the hot water supply pipe, which is conventionally performed, and thus the cost for this is unnecessary.

It is a schematic explanatory drawing of the purified water supply device concerning a 1st embodiment of the present invention. It is a schematic explanatory drawing of the purified water supply device which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the principal part of the modification of 1st Embodiment of this invention. It is explanatory drawing of the principal part of the modification of 2nd Embodiment of this invention. It is a schematic explanatory drawing of the conventional purified water feeder. It is a schematic explanatory drawing of the water purifier of the example different from the conventional FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

First, a first embodiment of the present invention shown in FIG. 1 will be described.
In the figure, reference numeral 1 denotes a purified water supply device that supplies purified water after cooling or heating. The purified water supply device 1 includes a cooling tank 2 that stores and cools the purified water W, and a heating tank 3 that heats the purified water W, and connects the chilled water supply pipe 4 to the cooling tank 2 as a water supply pipe. The hot water supply pipe 5 is connected to the heating tank 3 as a water supply pipe. The cooling tank 2 is provided with a device for cooling it, and the heating tank 3 is provided with a device for heating it. However, these are well-known and will not be described.

  Further, as described above, the conventional general water purifier includes a purification unit (not shown) composed of a membrane treatment tank and an activated carbon tank for purifying raw water, and the purified water purified in the purification unit is supplied to the cooling tank. 2 and the heating tank 3 and the purified water previously purified by a purification device (not shown) separate from the purified water supply device are stored in a purified water tank (not shown). Although there exists what has introduce | transduced the water in a water purification tank into the said cooling tank 2 and the heating tank 3, this embodiment is the former case. Although the description is omitted, the latter case may be used.

Thus, in this embodiment, in the configuration described above, electromagnetic valves or manual valves 6 and 7 are provided in the vicinity of the downstream ends of the cold water supply pipe 4 and the hot water supply pipe 5, respectively, and the cold water supply pipe 4 and the hot water are provided. the downstream end of each of the supply tube 5 is connected to a common faucet 8, further upstream cold water supply pipe and the downstream end are allowed branched in the side 4 of the valve 7 of the solenoid valve or manual provided with the hot water supply pipe 5 to it the three-way valve 9 to the connecting portion as well as connected to the upstream side of the solenoid valve or manually operated valve 6 is provided, a suitable time period, the electromagnetic provided on each of the said cold water supply pipe 4 hot water supply pipe 5 The flow path is switched by a valve or manual valves 6 and 7 and a three-way valve 9 provided at the connection portion, and hot water having a temperature required for sterilization washing is supplied from the heating tank 3 to the hot water supply pipe 5 and the cold water supply pipe 4. of those that without the jar by flow in either or both. Reference numeral 5a denotes a branch portion of the hot water supply pipe 5. In the other figures, reference numeral 10 denotes an ultraviolet germicidal lamp provided in the cooling tank 2, and 11 denotes an expanded air discharge pipe provided between the top of the heating tank 3 and the top of the cooling tank 2. .

  Thus, when the purified water supply device 1 supplies the cooled purified water, the flow path from the hot water supply pipe 5 to the cold water supply pipe 4 by the three-way valve 9 with the electromagnetic valve or the manual valve 6 opened. In order to supply water to the faucet 8 from the cold water supply pipe 4 and to supply heated purified water, the cold water supply pipe 5 is connected from the hot water supply pipe 5 by the three-way valve 9 with the electromagnetic valve or the manual valve 7 opened. The flow path to 4 is cut off, and water is supplied from the hot water supply pipe 5 to the faucet 8.

  When sterilizing and washing, first, the flow path from the branch portion 5a of the hot water supply pipe 5 to the cold water supply pipe 4 is blocked by the three-way valve 9 with the electromagnetic valve or the manual valve 7 opened. In this state, hot water having a temperature required for sterilization washing is poured from the heating tank 3. As a result, the entire hot water supply pipe 5 is sterilized and washed.

  Next, in a state where the electromagnetic valve or the manual valve 6 is opened while the electromagnetic valve or the manual valve 7 is shut off, the flow path from the branch portion 5a of the hot water supply pipe 5 to the cold water supply pipe 4 by the three-way valve 9 Switch to. In this state, hot water having a temperature required for sterilization washing is poured from the heating tank 3. Thereby, the inside of the portion near the faucet 8 in the cold water supply pipe 4 is sterilized and washed. Note that the order of performing sterilization cleaning may be reversed. Further, in some cases, in a state where both the electromagnetic valve or the manual valves 6 and 7 are opened, the three-way valve 9 switches the flow path from the branch portion 5a of the hot water supply pipe 5 to the cold water supply pipe 4, and this state The hot water supply pipe 4 and the hot water supply pipe 5 may be simultaneously sterilized and washed by flowing hot water necessary for sterilization and washing from the heating tank 3.

Moreover, such disinfection washing, the proper person of time, and performs manually or automatically. Further, in this embodiment, the timing is set to discharge the accumulated water in the cold water supply pipe 4 and the hot water supply pipe 5, that is, when so-called waste water is used. Just do it.

Next, a second embodiment of the present invention shown in FIG. 2 will be described.
In this embodiment, the difference from the first embodiment is that, in this embodiment, an electromagnetic valve or a manual valve 12 is provided in the vicinity of the downstream end of the cold water supply pipe 4 and its downstream end is connected to the faucet 13. Further, the downstream end of the hot water supply pipe 5 is connected to the upstream side of the electromagnetic valve or the manual valve 12 of the cold water supply pipe 4, and a three-way valve 14 is provided at the connection portion. In addition, since the other structure is the same as that of the said 1st Embodiment, the same code | symbol is attached | subjected to the same member and detailed description is abbreviate | omitted.

Next, the sterilizing and cleaning action according to this embodiment will be described.
In a state where the electromagnetic valve or the manual valve 12 is opened, the flow is switched from the hot water supply pipe 5 to the cold water supply pipe 4 by the three-way valve 14. In this state, hot water having a temperature required for sterilization washing is poured from the heating tank 3. As a result, the insides of the hot water supply pipe 5 and the cold water supply pipe 4 near the faucet 13 are sterilized and washed.

Next, a modification of the first embodiment shown in FIG. 3 will be described.
In this modification, the difference from the first embodiment is that, in this modification, the flow path switching is not based on the three-way valve in the first embodiment. That is, in this modification, electromagnetic valves or manual valves 6 and 7 are provided in the vicinity of the downstream ends of the cold water supply pipe 4 and the hot water supply pipe 5, respectively, and each of the cold water supply pipe 4 and the hot water supply pipe 5 is provided. connect the downstream end to a common faucet 8, further wherein the electromagnetic valve of the cold water supply pipe 4 and its downstream end with allowed branched in upstream side of the valve 7 of the solenoid valve or manual provided with the hot water supply pipe 5 to it or manually An electromagnetic valve or a manual valve 15 is provided on the branch portion 5a of the hot water supply pipe 5 connected to the upstream side of the valve 6 of the type.

Thus, in this modification, the flow path from the hot water supply pipe 5 to the cold water supply pipe 4 is switched by an electromagnetic valve or a manual valve 15 provided in the branch portion 5 a of the hot water supply pipe 5.

Next, a modification of the second embodiment shown in FIG. 4 will be described.
The difference from the second embodiment in the present modification is that in the present modification, the switching of the flow path is not based on the three-way valve in the second embodiment. That is, in this modification, an electromagnetic valve or a manual valve 12 is provided in the vicinity of the downstream end of the cold water supply pipe 4, the downstream end thereof is connected to the faucet 13, and the downstream end of the hot water supply pipe 5 is connected to the cold water supply pipe 4. The solenoid valve or the manual valve 12 is connected to the upstream side of the solenoid valve or the manual valve 12, the solenoid valve or the manual valve 16 is provided in the vicinity of the downstream end of the hot water supply pipe 5, and the hot water supply pipe 5 in the cold water supply pipe 4 is provided. An electromagnetic valve or a manual valve 17 is provided on the upstream side of the connecting portion at the downstream end of the valve.

  Thus, in the present modified example, when supplying the cooled purified water, the electromagnetic valve or the manual type valve 16 is closed with the electromagnetic valve or the manual type valve 12 or 17 opened, and the cold water is supplied from the hot water supply pipe 5. When the flow path to the supply pipe 4 is shut off, water is supplied from the cold water supply pipe 4 to the faucet 13 and heated water is supplied, the electromagnetic valve or manual valve 12 is opened while the electromagnetic valve or manual valve is opened. In the state where 17 is closed, the electromagnetic valve or the manual valve 16 is opened to open the flow path from the hot water supply pipe 5 to the cold water supply pipe 4, and water is supplied from the hot water supply pipe 5 to the faucet 13.

  Further, when sterilizing and washing, the same flow path as that when the heated purified water is supplied is used, and hot water necessary for sterilization and washing is passed from the heating tank 3.

DESCRIPTION OF SYMBOLS 1 Water purifier 2 Cooling tank 3 Heating tank 4 Cold water supply pipe 5 Hot water supply pipe 5a Branch part 6, 7 Solenoid valve or manual valve 8 Faucet 9 Three-way valve 12 Solenoid valve or manual valve 13 Faucet 14 Three-way valve 15 Solenoid valve or manual valve 16, 17 Solenoid valve or manual valve

Claims (6)

  In the purified water supply device which supplies purified water after cooling or heating, the purified water supply device is configured to allow hot water having a temperature necessary for sterilization and washing to flow through a water supply pipe in a timely manner.   The purified water supply device includes a cooling tank that stores and cools purified water and a heating tank that heats purified water, and connects a cold water supply pipe as a water supply pipe to the cooling tank, while supplying hot water as a water supply pipe to the heating tank. The purified water supply device according to claim 1, which is a purified water supply device formed by connecting pipes.   A solenoid valve or a manual valve is provided in the vicinity of the downstream end of each of the cold water supply pipe and the hot water supply pipe, and the downstream ends of the cold water supply pipe and the hot water supply pipe are connected to a common faucet, and further the hot water supply pipe Is branched at the upstream side of the solenoid valve or manual valve, and the downstream end thereof is connected to the upstream side of the solenoid valve or manual valve of the cold water supply pipe, and a three-way valve is provided at the connection portion. Item 2. A water purifier according to item 2.   A solenoid valve or a manual valve is provided in the vicinity of the downstream end of each of the cold water supply pipe and the hot water supply pipe, and the downstream ends of the cold water supply pipe and the hot water supply pipe are connected to a common faucet, and further the hot water supply pipe Is branched at the upstream side of the electromagnetic valve or manual valve, and the downstream end thereof is connected to the upstream side of the electromagnetic valve or manual valve of the cold water supply pipe, and the electromagnetic valve or The water purifier according to claim 2, wherein a manual valve is provided.   An electromagnetic valve or a manual valve is provided in the vicinity of the downstream end of the cold water supply pipe and the downstream end thereof is connected to a faucet. Further, the downstream end of the hot water supply pipe is connected upstream of the electromagnetic valve or the manual valve of the cold water supply pipe. The water purifier according to claim 2, wherein the water purifier is connected to the side and a three-way valve is provided at the connecting portion. Provide a solenoid valve or a manual valve near the downstream end of the cold water supply pipe and connect the downstream end to a faucet, and connect the downstream end of the hot water supply pipe upstream of the electromagnetic valve or manual valve of the cold water supply pipe In addition, an electromagnetic valve or a manual type valve is provided in the vicinity of the downstream end of the hot water supply pipe, and an electromagnetic valve or a manual type is provided on the upstream side of the connection part at the downstream end of the hot water supply pipe in the cold water supply pipe. The water purifier according to claim 2, which is provided with a valve.

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