JP2013112398A - Lid body - Google Patents

Abstract

Provided is a lid that can easily check the oxidation-reduction potential of a liquid contained in the container without opening the container and is compact in size.
A lid body 100 is a member that detachably closes an opening 51 of a container 50 that contains a liquid R, and a pair of electrodes 11 and 12 that are disposed so as to be in contact with the liquid R in the container 50. The control circuit 13 having a function of calculating the oxidation-reduction potential based on the potential difference generated between the electrodes 11 and 12 when the liquid R in the container 50 is brought into contact with the electrodes 11 and 12, and the calculation result by the control circuit 13 And light emitters 14 and 15 which are display means for displaying. The electrode 11 is a platinum electrode, and the electrode 12 is a silver chloride electrode. If the oxidation-reduction potential calculated based on the potential difference between the electrodes 11 and 12 is higher than a preset reference potential, the green LED illuminator 15 is turned on, and if the voltage is lower than the reference potential, the red LED is turned on. The light emitter 14 is turned on.
[Selection] Figure 1

Description

  The present invention relates to a lid used for closing an opening of a container that contains a liquid such as strongly acidic water.

  In recent years, there are various types of strongly acidic water (water with a relatively high redox potential) and strong alkaline water (water with a relatively low redox potential) produced by electrolysis by adding an electrolyte such as sodium chloride to water. Used in the field. However, the redox potential of the liquid is unstable and easily fluctuates over time due to temperature or other external factors. For example, the strong redox water generated by a strong acidic water generator is used to reduce its redox potential. It is difficult to store for a long time while keeping it stable.

  In view of this, a redox potential holding container has been proposed in which the redox potential of the contained liquid can be kept constant (see, for example, Patent Document 1).

JP 2009-67458 A

  If the liquid is stored using the oxidation-reduction potential holding container described in Patent Document 1, it is presumed that the oxidation-reduction potential of the liquid can be maintained at a constant value for a certain period of time. In actual use, in order to check whether the oxidation-reduction potential is maintained in the state at the time of generation, each time the container is opened, the liquid is taken out and measured using an oxidation-reduction potentiometer. Must. For this reason, it is difficult to regularly check the oxidation-reduction potential of the liquid being stored. Further, when the container is opened, since the liquid being accommodated is in contact with air, the change in the oxidation-reduction potential of the liquid due to the liquid cannot be ignored.

  Further, even if the liquid stored in the oxidation-reduction potential holding container changes in quality due to some external factor (for example, a significant change in temperature, etc.), the oxidation-reduction potential may vary greatly. This is when the container is opened and the liquid is taken out and measured using an oxidation-reduction potentiometer. When the liquid is required, the oxidation-reduction potential of the liquid does not meet the required value and cannot be used. May occur.

  Accordingly, the problem to be solved by the present invention is to provide a lid that can easily confirm the oxidation-reduction potential of the liquid contained in the container without opening the container and is compact in size. There is.

  The lid of the present invention is a lid that closes an opening of a container that contains a liquid, and a pair of electrodes arranged so as to be in contact with the liquid in the container, and the liquid in the container as the electrode And a calculation unit that calculates an oxidation-reduction potential based on a potential difference generated between the electrodes when contacted, and a display unit that displays a calculation result of the calculation unit.

  With such a configuration, even when the opening of the container containing the liquid is closed with the lid of the present invention, the container is inclined or inverted, and the liquid in the container is transferred to the lid. When the electrodes are brought into contact with each other, a potential difference is generated between the electrodes, and the oxidation-reduction potential of the liquid calculated by the calculation means based on the potential difference is displayed on the display means, so that the container is not opened. The redox potential of the liquid contained in the container can be easily confirmed. In addition, since the KCl solution used in the conventional oxidation-reduction potentiometer is not used, the size of the lid can be made compact.

  Here, it is desirable that one of the pair of electrodes be a platinum electrode and the other be a silver chloride electrode. With such a configuration, when the liquid contained in the container is strong acid water, the redox potential of the strong acid water is set based on the electromotive force generated between the platinum electrode and the silver chloride electrode. It can be detected accurately and has good durability. In addition, since a pair of said electrode is not limited to a platinum electrode and a silver chloride electrode, if it is a dissimilar metal which produces a potential difference (electromotive force) when it contacts with strong acidic water, another electrode can also be used.

  Further, the oxidation-reduction potential calculated by the arithmetic means can be compared with a preset reference voltage, and information corresponding to the magnitude relationship can be displayed on the display means.

  With such a configuration, it is possible to easily determine whether or not the oxidation-reduction potential of the liquid contained in the container satisfies a predetermined value, so that convenience is improved.

  In this case, the display means may be provided with one or more light emitters that emit light corresponding to the magnitude relationship.

  With such a configuration, it is possible to identify whether or not the oxidation-reduction potential of the liquid contained in the container satisfies a predetermined value by the color of the light emitter, and thus visibility is improved.

  According to the present invention, it is possible to easily check the oxidation-reduction potential of the liquid contained in the container without opening the container, and to provide a lid having a compact size.

It is sectional drawing which shows the state with which the cover body which is 1st Embodiment of this invention was mounted | worn with the opening part of the container. It is a top view of the cover body shown in FIG. It is a functional block diagram of the cover body shown in FIG. It is sectional drawing which shows the use condition of the cover body shown in FIG. It is a top view which shows the cover body which is 2nd Embodiment of this invention. It is a top view which shows the cover body which is 3rd Embodiment of this invention.

  Hereinafter, based on FIGS. 1-4, the cover 100 which is 1st Embodiment of this invention is demonstrated. As shown in FIGS. 1 and 2, the lid 100 is a member that detachably closes the opening 51 of the container 50 that stores the liquid R (strongly acidic water), and can contact the liquid R in the container 50. And a function of calculating an oxidation-reduction potential based on a potential difference generated between the electrodes 11 and 12 when the liquid R in the container 50 is brought into contact with the electrodes 11 and 12. The control circuit 13 and the light emitters 14 and 15 which are display means for displaying the calculation result by the control circuit 13 are provided. One electrode 11 is a platinum electrode and the other electrode 12 is a silver chloride electrode, but is not limited thereto.

  The lid 100 has a concave female screw that can be screwed into a male screw part 52 formed on the outer periphery of the cylindrical opening 51 of the container 50 on the lower side of the housing 101 made of an insulating synthetic resin. A portion 102 is formed, and a pair of electrodes 11 and 12 are disposed on the ceiling surface 103 of the female screw portion 102. The control circuit 13 is housed in the housing 101, and the light emitters 14 and 15 are disposed on the upper surface 104 of the housing 101. The electrodes 11 and 12, the control circuit 13, and the light emitters 14 and 15 are connected by predetermined electrical wiring. The light emitter 14 is a red LED, and the light emitter 15 is a green LED.

  As shown in FIG. 3, the control circuit 13 in the housing 101 includes a calculation means (1-bit microcomputer) 16, a reference potential generator 17, and a comparator 18. When the potential difference generated between the electrodes 11 and 12 is input to the calculation means 16, the calculation means 16 calculates an oxidation-reduction potential based on this potential difference and separately generates this oxidation-reduction potential and the reference potential generation unit 17. The comparator 18 compares the measured reference voltage, and if the oxidation-reduction potential is higher than a preset reference potential, the green LED illuminator 15 is lit. If the redox potential is lower than the reference potential, the red LED emits light. A function for lighting the body 14 is provided.

  Here, how to use the lid 100 will be described with reference to FIGS. As shown in FIG. 1, the lid 100 is normally used as a closing device for the opening 51 of the container 50 in which the liquid R (strongly acidic water) is accommodated. If it is loosened and removed from the opening 51, the liquid R can be poured out from the opening 51.

  When it is desired to know the oxidation-reduction potential of the liquid R in the container 50, as shown in FIG. 4, the container 50 with the lid body 100 is inverted (or inclined) as it is, and the liquid R inside is covered. Contact the electrodes 11, 12 of the body 100. As a result, the power source of the control circuit 13 is turned on, and the calculation means 16 calculates the oxidation-reduction potential difference based on the potential difference generated between the electrodes 11 and 12, and the oxidation-reduction potential and the reference potential generator 17 generate the difference. The comparator 18 compares the difference with the reference voltage, and if the result is higher than a preset reference potential (for example, 1000 mV), the green LED illuminator 15 is turned on, and the voltage is lower than the reference potential. If so, the red LED illuminator 14 is turned on.

  In this case, in order to stabilize the measurement value, the container 50 with the lid 100 is inverted, held for a certain time (for example, about 10 seconds), and then returned to the upright state, whereby the light emitters 14 and 15 are A function to light is provided. Such a measurement procedure is displayed on the outer surface of the lid 100.

  Thus, even when the opening 51 of the container 50 containing the liquid R is closed by the lid 100, the container 50 is inverted (or inclined), and the liquid R in the container 50 is When contact is made with the pair of electrodes 11, 12 arranged on the lid 100, the result calculated by the control circuit 13 based on the potential difference generated between the electrodes 11, 12 is displayed on the light emitters 14, 15 as display means. Therefore, the oxidation-reduction potential of the liquid R stored in the container 50 can be known without opening the container 50.

  Here, since one electrode 11 is a platinum electrode and the other electrode 12 is a silver chloride electrode, when the liquid R (strongly acidic water) contained in the container 50 is brought into contact with the electrodes 11, 12, the platinum Based on the electromotive force generated between the electrode and the silver chloride electrode, the oxidation-reduction potential can be accurately calculated, and the durability is also good. Further, since the KCl solution used in the conventional oxidation-reduction potentiometer is not used, the size of the lid 100 can be made compact. Since the pair of electrodes 11 and 12 are not limited to platinum electrodes and silver chloride electrodes, other electrodes may be used as long as they are different metals that generate a potential difference (electromotive force) when contacted with strongly acidic water. it can.

  Further, since the redox potential calculated by the calculating means 16 is compared with a preset reference voltage and the light emitter 14 or the light emitter 15 is turned on in accordance with the magnitude relationship, the container It is possible to easily determine whether or not the redox potential of the liquid R contained in the liquid R satisfies a predetermined value, which is excellent in convenience.

  Further, the comparator 18 determines the magnitude relationship between the oxidation-reduction potential calculated by the calculation means 16 based on the potential difference between the electrodes 11 and 12 and the reference potential, and a plurality of light emitters 14 and 15 that emit light corresponding to the magnitude. Therefore, whether or not the redox potential of the liquid R in the container 50 satisfies a predetermined value can be identified by the color of the light emitters 14 and 15, and the visibility is also good.

  Next, based on FIG. 5, the lid 200 according to the second embodiment of the present invention will be described. In the lid 200 shown in FIG. 5, three light emitters 21, 22, and 23 having different emission colors are arranged on the upper surface 204 of the housing 201, and functions similar to those of the control circuit 13 shown in FIG. A control circuit (not shown) is provided. The light emitter 21 is a red LED, the light emitter 22 is a yellow LED, and the light emitter 23 is a green LED.

  The lid 200 can be used by being attached to the container 50 in the same manner as the lid 100 shown in FIG. 1. When the operation shown in FIG. 4 is performed, the lid 200 emits light according to the oxidation-reduction potential of the liquid in the container. The bodies 21, 22, 23 are lit. Specifically, when the redox potential is high, the “green light emitter 21” is lit, and as the redox potential decreases, the “green light emitter 21 and the yellow light emitter 22”, “yellow light emitter”. 22 ”,“ yellow light emitter 22 and red light emitter 21 ”, and“ red light emitter 21 ”in this order. Therefore, a change in the oxidation-reduction potential can be visually recognized depending on which of the light emitters 21, 22, and 23 is lit.

  In addition, in the lid 200, the light emitters 21, 22, and 23 can be the same color, and the number of lighting can be changed according to the oxidation-reduction voltage. Moreover, it is also possible to use an LED having a function of emitting a plurality of colored lights as a light emitter, and to emit light corresponding to the oxidation-reduction voltage.

  Next, based on FIG. 6, the cover 300 which is 3rd Embodiment of this invention is demonstrated. In the lid 300 illustrated in FIG. 6, the display unit 30 that numerically represents the oxidation-reduction potential is provided on the upper surface 304 of the housing 301. That is, the specific numerical value of the oxidation-reduction potential converted by the calculation means 16 based on the potential difference between the electrodes 11 and 12 shown in FIG. Therefore, the oxidation-reduction potential of the liquid (not shown) stored in the container can be accurately known.

  In addition, the lids 100, 200, and 300 described above show a part of the embodiments of the present invention, and the lid of the present invention is not limited to these lids 100, 200, and 300.

  The lid of the present invention can be widely used in various industrial fields as a means for closing an opening of a container for storing strongly acidic water generated by electrolysis.

DESCRIPTION OF SYMBOLS 11,12 Electrode 13 Control circuit 14,15,21,22,23 Light-emitting body 16 Calculation means 17 Reference potential generation part 18 Compiler 50 Container 51 Opening part 52 Male thread part 100,200,300 Cover body 101,201,301 Housing 102 Female thread portion 103 Ceiling surface 104, 204, 304 Upper surface R Liquid

Claims (4)

  A lid that closes an opening of a container capable of storing a liquid, and a pair of electrodes arranged to be in contact with the liquid stored in the container, and the liquid in the container being brought into contact with the electrode And a display unit for calculating a redox potential of the liquid based on a potential difference generated between the electrodes and a display unit for displaying a calculation result of the calculation unit.   The lid according to claim 1, wherein one of the pair of electrodes is a platinum electrode and the other is a silver chloride electrode.   The lid according to claim 1 or 2, wherein the redox potential calculated by the calculating means is compared with a preset reference voltage, and information corresponding to the magnitude relationship is displayed on the display means.   The lid according to any one of claims 1 to 3, wherein a single or a plurality of light emitters that emit colors corresponding to the magnitude relationship are provided as the display means.

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