JPH0340346Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a water supply and drainage device installed on a laboratory bench and used for chemical experiments.

(Conventional technology) Many equipment that uses water is used in chemical experiments conducted at schools and research institutes, and chemical tests conducted at hospitals. A cooler using water as a cooling medium is used as the container.

Until now, for equipment that uses water in chemical experiments and tests, tap water was supplied to the equipment, and the water used in the equipment was simply disposed of as wastewater. However, this use of water wastes water and increases the amount of clean water used.

Therefore, recently, instead of discarding the water used in equipment such as coolers, it has become common practice to send the water back to the equipment for use, that is, to reuse the water. In this system, the water sent out from the equipment is filtered by a filtration device, and then sent back to the equipment by a pump, so that the water is circulated and used repeatedly through the equipment, which is what is called gray water.

Conventionally, when water is circulated and used repeatedly in equipment that uses water in this way, a water supply section that supplies water to the equipment and the equipment are part of the circulation circuit that circulates water to the equipment. A general-purpose water supply pipe, a water tap, and a general-purpose sink that receives the water sent from the water tap, which are generally installed on a laboratory table used for chemical experiments, are used as the drainage part to receive the water sent out (discharged) from the water tap. ing. That is, since a general-purpose water supply pipe and a water supply valve are generally installed on a laboratory bench for water supply, this water supply pipe is connected via a hose to a water pressure pump installed in the water circulation circuit, rather than to the water supply pipe. The hydrant is connected to the equipment via a hose so that water sent from the pump via the water supply pipe is supplied to the equipment from the hydrant. In addition, since a sink is provided on the experimental table in correspondence with the water tap, the drain port of this sink is connected via a hose to the filtration device installed in the water circulation circuit, and the water sent out from the equipment is drained. The water is sent to the sink via a hose, and then from the sink to a filtration device to filter the water.

(Problem that the invention aims to solve) However, in a circulation circuit that circulates water to equipment in this way, it is difficult to use the existing water taps and sinks that have been traditionally installed on laboratory benches. has the following problems.

Chemical experiments often involve the use of materials with harmful components such as heavy metals. The water used in this experiment will not be used again and will be disposed of in the sink of the laboratory bench.The water will then be sent from the sink to special treatment to remove harmful components contained in the wastewater and then disposed of outside. I try to do that. If wastewater containing harmful components mixes with gray water used in equipment, this water may be sent to the equipment and corrode the water flow parts of the equipment, or even interfere with chemical experiments conducted using the equipment. I have something to come. For these reasons, it is not possible to dispose of wastewater containing harmful components in the sink used for discharging water used for the equipment, and instead of the sink used for discharging the water sent to the equipment, there is a sink installed on the laboratory bench. sinks to dispose of wastewater containing harmful components. Therefore, in the past, it was necessary to use two sets of sinks installed on the laboratory table, one for gray water to be sent to the equipment and the other for waste water containing harmful components, which was very uneconomical in terms of equipment.

This invention was made based on the above circumstances,
It is extremely economical and compact in terms of equipment, as it uses a common sink for the water used in the equipment and a sink for discarding wastewater containing harmful components, and is used to circulate and flush water to the equipment in chemical experiments. The purpose of the present invention is to provide an experimental water supply and drainage device that can be effectively used in a circulation circuit that is used repeatedly.

[Structure of the invention] (Means for solving the problem) In order to achieve the above-mentioned purpose, the experimental water supply and drainage device of the present invention includes a water supply pipe and water connected to the water supply pipe and sent from the water supply pipe. A water supply head is provided with a water supply valve that sends out the water received by the water supply head body to the outside, and a receiving body is provided on the drainage head body to receive water sent from the outside to the drainage head body. A drain head in which a drain head body is provided with a discharge port for discharging water received in the drain head body to the outside, a sink having at least two drain ports, and a drain port in one of the sinks and a drain port in the drain head body. A drain pipe is provided between the water supply valve of the water supply head and the receptacle body of the drain head, and the water supplied from the water supply valve is used to send the water to the receptacle body. The feature is that devices are connected.

(Function) With this configuration, the drain port of the drain head and one drain port provided in the sink are connected by a drain pipe,
The path for discharging the water used in the equipment and sending it to a filter etc. should be clearly separated from the other drain in the sink, and the other drain should not be an obstacle for disposing of wastewater containing harmful components. You can use one sink with a drain to drain the water used by the equipment and a drain to dispose of wastewater containing harmful components, and a water supply head to supply water to the equipment. and a drainage head for receiving and discharging water sent out from the equipment can be provided together in an extremely compact manner.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

An embodiment of the water supply and drainage system will be described with reference to FIGS. 1 to 3. This water supply and drainage apparatus is normally installed and used on a bench for chemical experiments, and in this embodiment, two sets of water supply heads and two drainage heads are provided facing each other.

In the figure, reference numeral 1 indicates a drop-in type sink having a rectangular planar shape, and two drain ports 2 and 3 are formed at the bottom of the sink 1 with an interval between them.
There is a perforated plate 4 on it. This sink 1 is fitted into a sink attachment opening 6 formed in a top plate 5 of the laboratory table, and is supported by placing a collar 1a formed on the upper peripheral edge of the sink 1 on the top surface of the top plate 5.
Reference numerals 7 and 8 denote a pair of water supply pipes, and these water supply pipes 7 and 8 penetrate the top plate 5 in the vertical direction (thickness direction) at mutually opposing parts of the collar 1a of the sink 1, and stand upright above the top plate 5. It is attached to the top plate 5 by screwing nuts 9, 9 into threaded portions formed on the water supply pipe and tightening them from the top and bottom sides of the top plate 5. As a result, the collar 1a of the sink 1 is fixed to the top plate 5. The upper ends of the water supply pipes 7 and 8 are bent horizontally so as to face each other, and a water supply head main body 10 is installed horizontally between the rear ends of these water supply pipes, located above the sink 1. There is. The water supply head main body 10 has a partition wall 10a inside which is divided into a room 1 on the right side in the length direction.
It is partitioned into a chamber 0b and a chamber 10c on the left, and has a cylindrical shape with both ends open respectively.Both open ends are connected to the upper ends of the water supply pipes 7 and 8, respectively, and the nuts are connected. 11 is tightened and fixed. For example, a total of four water supply valves 12 are attached to the water supply head main body 10 in parallel on both sides of the part corresponding to one room 10b divided by the partition wall 10a, and the part corresponding to the other room 10c partitioned by the partition wall 10a. For example, a total of four water supply valves 13 are installed side by side on both sides. These water supply valves 12 and 13 use ball valves, for example, and are connected to the inside of the water supply head main body 1, and are opened and closed by operating a lever.
A connector 14 for connecting a hose is attached to the tip of each water supply valve 12, respectively. Here, the water supply head body 10 and the water supply valves 12 and 13 constitute a water supply head. Further, a drain head main body 15 is arranged horizontally between the lower portions of the water supply pipes 7 and 8, and both ends of the drain head main body 15 are attached to each of the water supply pipes 7 and 8 by fittings 16. Drain head body 1
5 is closed at both ends, and the inside is partitioned in the length direction into a right room 15b and a left room 15c by a partition wall 15a, and the location corresponds to one drain port 2 provided in the sink 1. A drain port 17 is formed in the drain port 17, and this drain port 17 communicates with the left and right chambers 15b and 15c partitioned by the partition wall 15a. In the drain head body 15, for example, a total of four socket bodies 18 are attached to both sides of a part corresponding to one room 15b divided by a partition wall 15a, and a part corresponding to the other room 15c is attached. For example, a total of four receptacle bodies 19 are attached in line on both sides. These socket bodies 18 and 19 are of the same type as the hose connector 14, and are provided with a check valve inside. Here, the drainage head body 15 and the receptacle bodies 18 and 19 constitute a drainage head. Furthermore, a drain pipe 20 is disposed vertically between the drain port 17 of the drain head main body 15 and one drain port 4 of the sink 1 and connected to both. The drain pipe 20 has a cross-sectional area that allows water discharged from the outlet 17 of the drain head body 15 to flow sufficiently, and a plurality of overflow holes 21 are formed in the upper wall of the drain pipe 20. Note that the upper end of the drain pipe 20 and the drain head body 1
A gap exists between the drain pipe 20 and the discharge port 17 of the drain pipe 20, and the upper end of the drain pipe 20 is open to the outside air.

Note that a hose holding frame 22 is attached to the intermediate portion of the water supply pipes 7 and 8.

In the water supply and drainage system configured in this manner, a filtration device 31, a cooling device 32, and a pump 33 are connected between one of the drain ports 2 of the sink 1 and one of the water supply pipes 7, as shown in FIG. It is designed so that water can flow through it. The other drain port 3 of the sink 1 is connected to a waste water treatment device 34, and the lower end of the other water supply pipe 8 is connected to a water supply pipe 35.

Further, one chamber 10 of the water supply head main body 10
Between each of the water supply valves 12 provided according to the water supply valves 12 and the corresponding receptacles 18 provided according to one of the chambers 15b of the drain head main body 15, there is a device that uses water for chemical experiments. , for example cooler 36
are connected via hoses 37 and 38. In this case, the hose 37 is connected to the connector 14 of the water supply valve 11, and the hose 38 is connected to the socket body 18 of the drain head body 15. The hoses 37 and 38 are tied to the hose holding frame 22 with strings and held down. Also, between the corresponding ones of each water supply valve 13 provided corresponding to the other chamber 10c of the water supply head main body 10 and each receptacle body 19 provided corresponding to the other chamber 15c of the drain head main body 15, , the cooler 39 is connected via the hoses 37 and 38 in the same manner as in the previous case.

With such a connection structure, a circulation circuit is constructed in which the water supply head, the cooler 36, the drain head, the filtration device 31, the cooling device 32, and the pump 33 are connected to circulate water (gray water). The action in this water circulation circuit will be explained. Note that the water supply valve 1 is opened. First, the pump 33 is driven to send water through the water supply pipe 7 into one chamber 10b of the water supply head main body 10. Water received in the chamber 10b of the water supply head main body 10 is supplied from the water supply valve 12 to the cooler 36 via a hose 37. The cooler 26 uses the supplied water as a cooling medium to cool the object to be cooled, and the used water is passed from the cooler 36 to the hose 38.
and the drainage head body 15 through the socket body 18.
is sent to the interior of one of the rooms 15b. and,
The used water received in the room of the drain head main body 15 passes through the drain pipe 20 from the drain port 17, is further discharged from one drain port 2 of the sink 1 connected to the drain pipe 20, and is sent to the filtration device 31 ( drained).
Further, the water is filtered by a filter device 31 and cooled by a cooling device 32, and then sent to the water supply pipe 7 again by a pump 33. In this way, the water used in the cooler 36 is filtered and cooled, and then returned to the cooler 3.
It is used repeatedly by circulating it and flowing it so that it is supplied to 6. In addition, water is supplied to the other water supply pipe 8 from the water supply pipe 35, and this water is supplied to the other chamber 10c of the water supply head main body 10, the water supply valve 13, the hose 37, the cooler 39, the hose 38, and the socket body 1.
9. The water flows into the drain pipe 20 through the other chamber 15c of the drain head main body 15 and the outlet 17. and,
This water flows through the circulation circuit of the cooler 36 described above and is used as gray water. Note that the inside of the drain head body is partitioned by a partition wall, and there is a gap between the drain port 17 and the drain pipe 20, so that the water used in the cooler 39 and the water used in the cooler 36 are separated. The drained gray water does not mix inside the drainage head body. Therefore, there is no risk that gray water will flow back into the water supply passage of the cooler 39 and flow into the water supply pipe 35. In addition, if the water discharged from the drain port 2 of the sink 1 flows back into the drain pipe 20 for some reason,
The inside of the drain pipe 20 is in an overflow state,
The excess water flows through the overflow hole 21 of the drain pipe 20.
overflows to the outside of the drain pipe 20 and flows into the sink 1,
Further, it is discharged from the drain port 3.

Further, water generated in chemical experiments using materials containing harmful components is disposed of in the sink 1 and discharged from the other drain port 3 provided in the sink 1. This water is sent from the drain 3 to the treatment device 34, where it is treated and disposed of outside in a harmless state. In this case, the drain port 17 of the drain head main body 15 and the drain port 2 of the sink 1 are connected by a drain pipe 20, and the drain port 3
Since the water is clearly separated, the water containing harmful components disposed of in sink 1 will not mix with the gray water used for the cooler. As a result, a drain port 2 for gray water and a drain port 3 for water containing harmful components can be provided together in one sink 1.

Further, in this embodiment, the water supply head body 10 and the water supply valves 12 and 13 constitute the water supply head, and the drain head body 15 and the socket bodies 18 and 19 constitute the drain head, so that the water supply section for the cooler is and the drainage section can be compactly combined.
Furthermore, by integrating the two sets of water supply heads and drainage heads, the system can be made even more compact. Note that the configurations of the water supply head and drainage head are not limited to those in the embodiment.

Figures 4 and 5 show other embodiments of the drainage head.

The drain head in this embodiment has a drain head main body 53 consisting of a circular container 51 with an open top and a lid 52 that covers the top open part of the container, and the lid 52 has, for example, four socket bodies 54. It is provided side by side on the same circumference as the four socket bodies 55. One socket body 54 is for receiving gray water used in equipment that uses gray water, and the other socket body 55
The system receives clean water sent from equipment that uses clean water. A discharge port 56 is formed projecting from the center of the bottom of the container 51, and a drain pipe 20 is connected to the discharge port 56 in the same manner as in the embodiment described above.
An outside air communication hole 57 is formed protruding from the center of the lid 52, thereby communicating the inside of the drain head body 53 with the outside air. Therefore, even if gray water flows into the drainage head body 53 from one socket body 54 and clean water flows from the other socket body 55, the two do not flow backward and mix. In addition,
58 is a seal ring.

In addition, although the case where two sets of water supply and drainage devices are provided has been described in the embodiment, the present invention is not limited to this, and only one set may be provided, or three or more sets may be provided. Furthermore, the equipment connected between the water supply head and the drainage head is not limited to the cooler, but can be broadly applied to other equipment. For example, a water pump may be connected between both heads to flow water.

[Effects of the invention] As explained above, the experimental water supply and drainage apparatus of the invention has a water supply head that supplies water to equipment, a drainage head that receives water from the equipment, and a sink that drains water from the drainage head. Because it has a compact structure, it can be installed compactly on a chemical laboratory bench, and it is easy to supply and drain water to the equipment. Connected by a drain pipe, the drainage path is clearly separated from other drains installed in the sink, so other drains facing the sink can be used to prevent water used by the equipment from being affected. It is also possible to dispose of wastewater containing harmful components without having to use the sink, and by sharing a single sink in this way, it is possible to improve the economic efficiency of the equipment installed on the laboratory bench, making it easier to conduct chemical experiments. It can be installed on a laboratory table and used effectively as equipment for manually supplying water and draining water to equipment.

[Brief explanation of drawings]

1 to 3 are a partially cutaway front view, a partially cutaway side view, and a plan view showing one embodiment of the water supply and drainage system of the present invention, and FIGS. 4 and 5 show a drainage head in another embodiment. FIG. 2 is a front view and a plan view. 1... Sink, 2, 3... Drain port, 7, 8... Water supply pipe, 10... Water supply head body, 12, 13...
Water supply valve, 15... Drain head body, 18, 19...
...Socket body, 17...Discharge port, 20...Drain pipe.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A water supply pipe, a water supply valve connected to the water supply pipe that receives water from the water supply pipe, and sends the water received by the water supply head body to the outside. A water supply head is provided with a water supply head, and a drain head body is provided with a receiving body for receiving water sent from the outside to the drain head body, and the drain head body is provided with a discharge port for discharging the water received by the drain head body to the outside. a drain head provided with the water supply head, a sink having at least two drain ports, and a drain pipe connecting one of the drain ports of the sink and the drain port of the water supply head, An experimental water supply and drainage system, characterized in that a device that uses water supplied from the water supply valve and sends it to the socket body is connected between the valve and the socket body of the drainage head. (2) The experimental water supply and drainage apparatus according to claim 1, wherein the water supply pipe and the sink are installed on the top plate of the laboratory table.