JP2004143701A - Draining apparatus for header piping - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve draining operability in header piping provided with water pipes for connecting headers for branch-supplying water or hot water, to faucets fitted to a kitchen, a wash stand, a bathroom, and the like in a house. <P>SOLUTION: This draining apparatus for the header piping is provided with the headers 8, 12 for distributing water or hot water supplied from a main water supply pipe 1 or supply pipes 7, 9, 11, to a plurality of water pipes 14, 17; the faucets 13 for discharging water or hot water supplied from the water pipes 14, 17, to the outside; and a compressor 20 capable of supplying compressed air to the headers 8, 12 and the faucets 13. A drain plug 3 is mounted to the main water supply pipe 1, and hoses 19 connected to the compressor 20 can be attached to and detached from the water pipes 14, 17. Water in the water pipes 14, 17, faucets 13, headers 8, 12 and supply pipes 7, 9, 11 is drained from the drain plug 3 by supplying the compressed air of the compressor 20 into the water pipes 14, 17 in the valve closed state of the faucets 13. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage device for a header pipe in which a header for branching water or hot water and a faucet attached to a kitchen, a wash basin, a bathroom, a toilet, etc. in a house are connected by a water pipe. .
[0002]
[Prior art]
In general, when installing water and hot water supply pipes to kitchens, washstands, bathrooms, toilets, etc. in apartment buildings and detached houses, water and hot water headers and faucets are inserted under the floor and behind the walls. A header piping method is used to connect with water pipes made of plastic. In this header piping method, even if each faucet attached to the kitchen, wash basin, bathroom, toilet, etc. is used at the same time, a sufficient water discharge amount is guaranteed regardless of the distance of water supply or hot water supply location, In addition, it is possible to easily renew the water pipes that have reached the end of their useful life. However, in such a cold area, the header air temperature drops in the winter and the headers, water pipes, It is necessary to drain water so that the water does not freeze and cannot be supplied or damaged.
[0003]
Therefore, it is known that the header pipe can be drained when the temperature of the water passing through the water pipe decreases. (For example, refer to Patent Document 1) Briefly explaining this Patent Document 1 with reference to FIG. 5, the main pipe 31 of the water supply branches into the water supply pipe 34 and the hot water supply pipe 39 via the main plug 32 and the meter 33, and the water supply pipe 34 is A connector 37 for branching one end to a water drain plug 35 by a T-shaped joint and connecting a water supply header 36 to the other and attaching a connection hose 46 from a compressor 45 to one pipe 38 formed on the water supply header 36. The remaining four pipes 38a, 38b, 38c, and 38d are connected to the toilet faucet 47, the wash faucet 48, the kitchen faucet 49, and the bathroom faucet 50, respectively. The hot water supply pipe 39 is connected to a hot water supply header 42 via a hot water supply valve 40 and a hot water heater 41, and the hot water supply header 42 has three pipes 44 that lead to the wash water faucet 48, the kitchen faucet 49, and the bathroom faucet 50. 44a, 44b are formed, and a connector 43 for attaching the connection hose 46 from the compressor 45 is installed in a pipe 44c formed separately. Accordingly, since the temperature of the water in the pipe drops and freezing is expected, in order to drain the water, the water faucet 35, the faucet 48, the kitchen faucet 49, and the bathroom faucet 50 are closed, and the compressor 45 The connection hose 46 is connected to the connector 37. Next, only the toilet faucet 47 is opened and the compressed air from the compressor 45 is sent to the water supply header 36, and then the toilet faucet 47 is opened to drain water, and these operations are repeated in order to remove water from each faucet. Unplug. In this case, the hot water supply valve 40 and the main plug 32 are kept closed. Further, by connecting the connecting hose 46 of the compressor 45 to the connector 43 and performing the same operation as described above, the water in the hot water supply system pipe can be drained.
In the above, the connecting hose is connected to the header, and compressed air is sent from the header to the faucet through the pipe, so the faucet is opened many times for each faucet to be drained. It is necessary to operate to the position, and it takes time to operate each faucet provided at a distant position, and an improvement measure has been desired.
[0004]
[Patent Document 1]
Japanese Patent No. 3170514 (page 2, Fig. 1)
[0005]
[Problems to be solved by the invention]
A problem to be solved by the present invention is a header pipe comprising a header for branching water or hot water and a water pipe connecting a faucet attached to a kitchen, a wash basin, a bathroom, etc. in a house. Is to improve the operability of draining water.
[0006]
[Means for Solving the Problems]
According to the present invention, a drain device for a header pipe according to claim 1 is a header for distributing water or hot water supplied from a water supply main pipe or a supply pipe to a plurality of water pipes, and water or hot water supplied from the water pipe is externally provided. Equipped with a faucet for discharging water and a compressor capable of supplying compressed air to the header and faucet, and a water drain plug is attached to the water supply main pipe, and the hose connected to the compressor is removable. By supplying compressed air from the compressor into the water pipe while the water faucet is closed, water in the water pipe, water faucet, header and supply pipe is drained from the water drain plug.
[0007]
According to a second aspect of the present invention, there is provided a drainage device for a header pipe in which a branch pipe is attached to the water pipe and a hose is detachably connected to the branch pipe.
[0008]
According to a third aspect of the present invention, there is provided a drainage device for header piping, wherein the drain plug is connected to a compressor by a cord and is opened in conjunction with the compressor.
[0009]
A drainage device for a header pipe according to claim 4 is equipped with a temperature sensor for measuring the temperature of the passing water in any of the water supply main pipe, the supply pipe or the header, and the temperature sensor and the compressor are a cord, The control box communicates with the control box, and the control box can set the temperature at which the compressor operates. The compressor operates when the temperature measured by the temperature sensor is equal to or lower than the temperature set by the control box.
[0010]
According to a fifth aspect of the present invention, there is provided a drainage device for a header pipe, wherein the drain plug is connected to a control box by a cord, and is opened and drained when a temperature measured by a temperature sensor is lower than a preset temperature. .
[0011]
According to a sixth aspect of the present invention, the control box is provided with a control panel, and the control panel can display the measured temperature of the temperature sensor and the operating state of the compressor.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The present invention can be applied to, for example, a general house. As shown in FIGS. 1 and 2, a water supply main pipe 1 connected to a water supply source is piped in a room A of the building. The other end is connected to a branch plug 2 that can branch the water flow path in two directions. An electric water drain plug 3 is attached in the middle of the flow path of the water supply main pipe 1, and the water drain plug 3 drains water to the outside from a drain port 3a formed in the lower part, and is driven in the upper part. The drive member 4 is provided with the member 4, and is connected to a compressor 20 described later by a cord 5. One end of the branch plug 2 is connected to a first supply pipe 7, and the other end of the first supply pipe 7 is connected to a water header 8. A second supply pipe 9 is connected to the other end of the branch plug 2. The other end of the second supply pipe 9 is connected to a water heater 10 for heating water, and the water heater 10 is connected to a third supply pipe. The pipe 11 is connected to the hot water header 12.
[0013]
The water header 8 is attached to a kitchen B, a wash basin C, a bathroom D, a toilet E, etc., which require water supply, installed at a predetermined position in the room A with water supplied from the first supply pipe 7. A plurality of water flow pipes 14 to be supplied to each faucet 13 are mounted at predetermined intervals along the longitudinal direction, and each water flow pipe 14 is a synthetic resin such as a cross-linked polyethylene pipe or a polybden pipe. The bellows-shaped sheath tube 15 previously formed under the floor and behind the wall is inserted and connected to each of the faucets 13.
[0014]
The hot water header 12 supplies hot water supplied from the water heater 10 through the third supply pipe 11 to the faucets 13 attached to the kitchen B, the washbasin C, and the bathroom D that require hot water supply. A plurality of hot water passage pipes 16 are attached at predetermined intervals along the longitudinal direction, and each hot water passage pipe 16 is formed of a synthetic resin such as a cross-linked polyethylene pipe or a polybuden pipe, A bellows-like sheath tube 15 disposed behind the wall is inserted and connected to each faucet 13.
[0015]
A branch pipe 17 is connected to each water passage pipe 14 connecting the water header 8 and each faucet 13 and each hot water passage pipe 16 connecting the water header 12 and each faucet 13. Each is connected. As shown in FIG. 3, each branch pipe 17 is substantially T-shaped and connected to the upper end of the water passage pipe 14 or the hot water passage pipe 16 (the water passage pipe 14 in this embodiment) and the lower portion of the faucet 13. The connection pipe 18 is connected, and one end is formed with an inlet portion 17a to which the water flow pipe 14 is connected, and the other end is formed with an outlet portion 17b to which the connection pipe 18 is connected. A mounting port 17c for detachably connecting the hose 19 is formed on one side between the outlet port 17b and the branch pipe 17 when the hose 19 is not mounted. A check valve 17d for preventing the internal water from being drained from the mounting port 17c is accommodated.
[0016]
The hose 19 includes each branch pipe 17 connected to the water flow pipe 14 that connects the water header 8 and each faucet 13, and hot water that connects the hot water header 12 and each faucet 13. The other end of the hose 19 is connected to the compressor 20 installed in the room A. The attachment port 17c of each branch pipe 17 connected to the water pipe 16 can be detachably connected as necessary. doing. Between the hose 19 and the compressor 20, a filter 21 for removing dust or foreign matters in the compressed air supplied from the compressor 20 is interposed. The compressor 20 is provided with a switch 20a for instructing start and stop of operation. By supplying high-pressure compressed air to each branch pipe 17 through the filter 21 and the hose 19, each supply pipe 7, 9, 11, each water pipe 14, 16, each header 8, 12 and each faucet 13, which can drain low-temperature water that may be frozen from the drain plug 3, and The compressor 20 is connected to the drive member 4 of the water drain plug 3 by a cord 5. Note that the hose may be left connected to the attachment port of the branch pipe, or may be connected only when there is a possibility that water in each supply pipe, each water pipe, each header, and each water faucet will freeze.
[0017]
Next, in the present invention, when the temperature of the water in each of the supply pipes 7, 9, 11, the water flow pipes 14, 16, the headers 8, 12 and the water faucet 13 is lowered to prevent the water from freezing. Will be described. First, when there is a possibility that the outside air temperature falls and the water freezes at night, the switch 20a of the compressor 20 is manually operated. Then, the compressor 20 is activated, and at the same time, a signal is sent to the drive member 4 of the water drain plug 3 through the cord 5 to open the water drain plug 3, and strong compressed air passes through the filter 21 and is branched by the hose 19. 17 is supplied into the water pipes 14 and 16, the supply pipes 7, 9 and 11, and the headers 8 and 12. At this time, since each faucet 13 is in a valve-closed state where water is not discharged, this compressed air is supplied to each water pipe 14, 16, each faucet 13, each supply pipe 7, 9, 11, and each header 8. , 12 acts on the water remaining in the water, and the water in the interior is directed from the branch pipe 17 to the water drain plug 3, and this water is drained from the drain port 3 a of the water drain plug 3 in a valve-open state.
[0018]
As described above, in the present invention, the hose for supplying the compressed air from the compressor is connected to the branch pipe between the header and the faucet, and the water drain plug is attached downstream from the header. Therefore, when compressed air is supplied from the compressor, the water is directed from the faucet to the header, and the faucet may remain closed when draining water from the supply pipe, water pipe, header, and faucet. There is no need to drain the water and prevent freezing by simply operating the compressor switch.
[0019]
FIG. 4 shows another embodiment of the present invention. In this embodiment, the temperature of water passing through the first supply pipe 7 is measured in any one of the water supply main pipe 1, the supply pipes 7 and 9, or the water flow pipes 14 and 16. The temperature sensor 22 which can be attached is mounted | worn. The temperature sensor 22 is connected to the control box 24 by a cord 23. The mounting position of the temperature sensor 22 is not particularly limited, but it is desirable that the temperature sensor 22 be mounted at a position where the temperature is the lowest in the room A, and when it is necessary to check or replace due to a failure or the like. The temperature of the water passing through the pipe 7 is measured, and the measured value is output to the control box 24 via the code 23.
[0020]
The control box 24 presets a temperature at which water passing through the first supply pipe 7 to which the temperature sensor 22 is attached is likely to freeze, and compares the measured temperature input from the temperature sensor 22 with the measured temperature set. When the temperature is lower than the temperature, a signal is sent to the drive member 4 of the water drain plug 3 through the cord 23a, and the signal is sent to the water drain plug 3 to be opened and the compressor 20 is operated through the cord 23b. When the temperature exceeds the set temperature, a signal is sent to stop the operation of the drive member 4 and the compressor 20. When the compressor 20 is activated, strong compressed air passes through the filter 21 and is supplied from the branch pipe 17 to the water pipes 14, 16, the supply pipes 7, 9, 11 and the headers 8, 12 by the hose 19. Thus, water can be drained from the water drain plug 3.
[0021]
The control box 24 is linked to the temperature sensor 22 via a cord 23, and a control panel 24a is attached to the front. The control panel 24a is configured to measure the water temperature and water temperature based on the signal from the temperature sensor 22. The open / close state of the stopper 3 and the operating state of the compressor 20 can be confirmed. Further, the setting switch 24b for setting the temperature at which the water stopper 3 and the compressor 20 are operated, and the water stopper 3 and the compressor 20 are manually operated. The manual drain switch 3 and the compressor 20 can be operated by operating the manual switch 24c according to the situation. The rest of the configuration is the same as in the previous embodiment, and a detailed description is omitted.
[0022]
Next, in this embodiment, when the temperature of the water in each of the supply pipes 7, 9, 11, each of the water pipes 14, 16, each of the headers 8, 12 and each of the faucets 13 is lowered to prevent freezing of the water. The operation will be described. First, the temperature measured by the temperature sensor 22 is always output to the control box 24 by the code 23. When the measured temperature becomes lower than the temperature preset by the control box 24, the water drain plug 3 is connected via the code 23a. A signal is sent to the drive member 4 to open the valve, and a signal is sent to activate the compressor 20.
[0023]
When the compressor 20 is activated, strong compressed air is supplied from the branch pipe 17 into the water pipes 14, 16, the supply pipes 7, 9, 11 and the headers 8, 12 through the filter 21 through the filter 21. In this case, since each faucet 13 is in a closed state where water is not discharged, this compressed air remains in each of the water pipes 14 and 16, each of the supply pipes 7, 9 and 11 and each of the headers 8 and 12. Water is discharged from the water drain plug 3 which is in a valve-opened state from the branch pipe 17 toward the water drain plug 3. Since the control panel 24a of the control box 24 is provided with the manual switch 24c, even if the water temperature is higher than the set temperature, the manual switch 24c is operated to open the water drain plug 3 and the compressor 20. Can also be performed manually.
[0024]
In this embodiment, when the temperature of the water in the pipe becomes lower than the temperature set in the control box in advance, the water drain plug and the compressor automatically operate to drain water. It is possible to improve the reliability without forgetting the operation of draining the water or freezing the water when it is absent.
[0025]
【The invention's effect】
According to the present invention, in order to drain water, it is only necessary to operate the compressor, and water flows from the water pipe toward the drain plug, and each faucet provided at a distant position is opened. Therefore, the operability can be greatly improved.
[0026]
According to the second aspect of the present invention, the hose for supplying the compressed air of the compressor is detachably connected to the branch pipe attached to the water flow pipe, so that the hose can be connected as necessary, which is convenient.
[0027]
In claim 3, the water drain plug is connected to the compressor by a cord and opens in conjunction with the compressor. Therefore, if the compressor is operated, the water drain plug also operates, so that the operation of opening the water drain plug is not forgotten. Can be improved.
[0028]
According to the fourth and fifth aspects, when the temperature of the water in the header pipe is lowered, the compressor and the water drain plug are automatically operated by the temperature sensor, so that the water can be drained even in the absence.
[0029]
According to the sixth aspect of the present invention, since the control box is provided with the control panel, the operation status of the header pipe can be confirmed.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a header pipe of the present invention.
FIG. 2 is a floor plan of the room in FIG.
FIG. 3 is an enlarged explanatory view of a branch pipe.
FIG. 4 is an explanatory diagram of another embodiment.
FIG. 5 is an explanatory diagram of a prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water supply main pipe 3 Drain plug 7 1st supply pipe 8 Water header 9 2nd supply pipe 11 3rd supply pipe 12 Hot water header 13 Water tap 14 Water flow pipe 16 Hot water flow pipe 17 Branch pipe 19 Hose 20 Compressor 22 Temperature sensor 23, 23a, 23b Code 24 Control box 24a Control panel

Claims (6)

A header for distributing water or hot water supplied from a water supply main pipe or supply pipe to a plurality of water pipes, a faucet for discharging water or hot water supplied from the water pipe to the outside, a header and a faucet A compressor capable of supplying compressed air, and a water drain plug is attached to the water supply main pipe, and the water pipe is detachable with a hose connected to the compressor. A drainage device for a header pipe, characterized in that the water in the water pipe, faucet, header and supply pipe is drained from the water drain plug by supplying the water into the water pipe. The drain device for a header pipe according to claim 1, wherein a branch pipe is attached to the water pipe, and a hose is detachably connected to the branch pipe. 3. The drain device for header piping according to claim 1, wherein the drain plug is connected to a compressor by a cord and is opened in conjunction with the compressor. A temperature sensor for measuring the temperature of the passing water is attached to any one of the water supply main pipe, the supply pipe, and the header. The temperature sensor and the compressor are communicated with each other by a cord and a control box. The drainage device for a header pipe according to claim 1 or 2, wherein the operating temperature can be set and the compressor is operated when the temperature measured by the temperature sensor is equal to or lower than the temperature set by the control box. . 5. The drain device for header piping according to claim 4, wherein said drain plug is connected to a control box by a cord, and is opened and drained when a temperature measured by a temperature sensor is equal to or lower than a preset temperature. . 6. The apparatus for draining a header pipe according to claim 4, wherein the control box is provided with a control panel, and the control panel can display the measured temperature of the temperature sensor and the operating state of the compressor.

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