JP3027373U - Simple colorimeter - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To make it possible to measure a wide variety of water qualities safely with easy operation and even an inexperienced person can perform on-site measurement. SOLUTION: A pump part containing a color former, a nozzle extending in a hook shape on the side of the pump part, and a nozzle opening knob provided by closing the tip of the nozzle are provided. Is formed in a sealed state by a transparent synthetic resin that is transparent. Further, the one having the above-mentioned configuration is used as a primary reactor, and a pump portion in which a color former is stored, and an opening which is formed on one side of the pump portion and into which the tip portion of the nozzle of the primary reactor can be inserted. A secondary reactor, which is composed of a nozzle that is provided and an opening knob of the nozzle that is provided by closing the tip of the nozzle and that is formed in a sealed state by a synthetic resin that is entirely transparent, is also used.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a simple colorimetric densitometer used for easily measuring the hydrogen ion concentration of industrial wastewater, the hydrogen ion concentration of dilute acid and alkali solutions, or the free cyanide concentration.

[0002]

[Prior art]

 With the increasing interest in water quality in recent years, such as drinking water, pools, rivers, acid rain, and industrial wastewater, the official method for setting standard values, target values, monitoring items, etc. for tap water, environmental water, factory wastewater, etc. The JIS, JIS method, hygiene test method, etc. have been revised. Many of the test methods related to these are making full use of analytical instruments to obtain more precise results. However, not only do these test methods require specialized knowledge and experience, but they are also obliged to perform measurements in well-equipped laboratories.

On the other hand, in the field where process control and actual water quality inspection are performed, it is not always necessary to obtain only precise results, but to what extent water is contaminated or whether pollutants are contained in a certain amount or more. It is often required to judge whether or not it is necessary to collect and scrutinize. In such cases, there is a need for a method that is simple and does not require any particular experience, and can obtain immediate results.

From this point of view, as a conventional simple colorimetric densitometer, as shown in FIGS. 8 (a) and 8 (b), the entire tube is formed of a flexible synthetic resin that is transparent. There is a simple colorimetric densitometer 1 in which a color former 3 is contained in a container 2 and both ends thereof are crushed and welded. When the simple colorimetric densitometer 1 is used, one end of the cylindrical container 2 is perforated with the needle-shaped material 4, and the perforated portion is directed upwards to press the cylindrical container 2 with a finger so that the inside of the cylindrical container 2 is closed. After the air is discharged, the perforated portion is inserted into the test liquid, and the test liquid is sucked into the tubular container 2 by the restoring force of the tubular container 2 while loosening the pressing of the finger. After that, the perforated part of the cylindrical container 2 is turned upside down and shaken to thoroughly mix the color former 3 and the test liquid, and then the color is compared with the color on the standard color chart to determine the hydrogen ion concentration. Making a decision.

[0005]

[Problems to be solved by the device]

 However, in the conventional simple colorimetric densitometer as described above, when the needle 4 is used to perforate one end of the cylindrical container 2, if the hole is too large, the test liquid is sucked down toward the perforated portion. Sometimes the color developer 3 spills out of the device and affects the color development, or the size of the holes during perforation varies, which causes variations in the aspirated amount of the test liquid, which also affects the color development and measurement. Was causing the accuracy of the. In addition, since the needle-like object 4 is used when piercing one end of the cylindrical container 2, there is a risk of inadvertently damaging a finger or the like, and the cylindrical container 2 is crushed at both ends and welded. Therefore, there is a problem in that the difference in the amount of the test liquid between the central part and the both ends causes a difference in the color development, which may make it difficult to judge the colorimetrically with the standard color chart. Furthermore, there is a problem in that the measurement of free cyanide in industrial wastewater requires special containers and instruments such as pipettes, and the handling at the measurement site is troublesome.

[0006]

[Means for Solving the Problems]

 The present invention has been made in order to solve such a problem in the conventional simple colorimetric densitometer, and is formed in a hook shape on the side of the pump section in which the color former is stored. It consists of a nozzle and a nozzle opening knob that is provided by closing the tip of the nozzle, and is formed in a hermetically sealed state by a transparent synthetic resin that is entirely transparent. In addition, the one having the above-mentioned configuration is used as a primary reactor, and the pump portion in which the color former is stored, and the opening extending to one side of the pump portion and into which the tip end of the nozzle of the primary reactor can be inserted A secondary reactor that is composed of a nozzle that has a section and a nozzle opening knob that is provided by closing the tip of this nozzle, and that is formed in a sealed state by a synthetic resin that can be seen through There is.

With such a configuration, the color-developing agent is not spilled outside the device, the amount of the test liquid to be aspirated is constant, and there is no difference in color development depending on the position of the simple colorimeter. It is possible to obtain a simple colorimetric densitometer that is highly accurate and safe for handling a wide variety of water qualities even for inexperienced people.

[0008]

[Embodiment of device]

 When the simple colorimetric densitometer according to the present invention is used as a simple colorimetric densitometer for measuring hydrogen ion concentration, it is formed in a hook shape on the side of the pump section where the color former is stored. The nozzle is formed of a flexible synthetic resin, which is made of a transparent synthetic resin and is made of a transparent synthetic resin. Further, when the simple colorimetric densitometer according to the present invention is used as a simple colorimetric densitometer for measuring free cyan density, it is formed in a hook shape on the side of the pump section where the color former is stored. The primary reactor is made up of a flexible synthetic resin that is entirely transparent, and a color developing agent. Pump section, a nozzle having an opening extending to one side of the pump section and into which the tip of the nozzle of the primary reactor can be inserted, and a nozzle opening provided by closing the tip of the nozzle. It is composed of two parts, a secondary reactor, which is composed of a synthetic knob, which is made of a synthetic resin and which is entirely see-through, and which is hermetically sealed.

[0009]

【Example】

 1 is a front view showing an embodiment of a simple colorimetric densitometer (primary reactor) according to the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is a vertical sectional view of FIG. 1, and FIG. A front view of a secondary reactor in a simple colorimetric densitometer showing an example, FIG. 5 is a vertical sectional view of the front of FIG. 4, FIG. 6 is a vertical sectional view of the side of FIG. 4, and FIG. It is a usage example figure of the next reactor.

Example 1. (Simplified Colorimetric Densitometer for Hydrogen Ion Concentration Measurement) In FIGS. 1 to 3, a simple ratio in which the coloring agent 5 for measuring hydrogen ion concentration was previously injected from the upper insertion port 6 and the insertion port 6 was sealed. On the side of the rectangular pump unit 7 in the color densitometer 10, a downwardly-pointing and tapered L-shaped nozzle 8 is hung and extended, and the lower end thereof is twisted from the tip of the nozzle 8 by a twist. An opening knob 9 of the nozzle 8 that opens the tip of the nozzle 8 is provided so as to close the tip of the nozzle 8. All of these are molded in a sealed state with a semi-transparent non-colored flexible synthetic resin.

When using the simple colorimetric densitometer 10 configured as described above, the tip of the nozzle 8 is directed upward, and the tip is tapped to remove the color former 5 stored inside the nozzle 8. The nozzle 8 is dropped into the pump portion 7, and while supporting the nozzle 8 with a finger, the opening knob 9 of the nozzle 8 connected to the tip thereof is twisted and screwed to open the nozzle 8. Next, the pump portion 7 is pushed with a finger with the opening side of the nozzle 8 facing upward, the air in the pump portion 7 is discharged, and then the pump portion 7 is pushed with a finger to be inspected. The nozzle 8 is put into a liquid (not shown), and the test liquid is sucked into the pump portion 7 by the restoring force of the pump portion 7 while loosening the pressing of the finger. Next, the tip portion of the nozzle 8 is turned upside down and shaken to sufficiently mix the color former 5 and the test liquid, and then the color of the test liquid in the pump portion 7 is measured for hydrogen ion concentration measurement. Determine the hydrogen ion concentration by comparing it with the color on a standard color chart (not shown).

Example 2. (Simple Colorimetric Densitometer for Measuring Free Cyan Density) In this example, the primary reactor A having the same structure as the simple colorimetric densitometer 10 in the above example and used in the same usage method was used. , The secondary reactor B in combination with the above Example 1. A simple colorimetric densitometer 20 different from The secondary reactor B will be described below. 4 to 7, the lower side of the rectangular pump portion 13 in the secondary reactor B in which the coloring agent 12 for measuring the free cyan concentration was previously injected from the upper insertion port 11 and the insertion port 11 was sealed. A nozzle 14 having an opening 14a into which the tip of the nozzle 8 of the primary reactor A can be inserted is hung down and extended, and its lower end is torn from the tip of the nozzle 14 by twisting. An opening knob 15 for opening the tip of the nozzle 14 is provided so as to close the tip of the nozzle 14. All of these are molded in a sealed state with a semi-transparent non-colored flexible synthetic resin.

When the simple colorimetric densitometer 20 configured as described above is used, the primary reactor A is used to carry out Example 1. Similarly to the above, the primary reaction of the test liquid 16 is performed. Next, the tip portion of the nozzle 14 of the secondary reactor B is directed upward, and the tip portion is lightly tapped to drop the color former 12 stored inside the nozzle 14 into the pump portion 13, and the nozzle 14 is operated by a finger. While supporting with, the opening knob 15 of the nozzle 14 continuously provided at the tip thereof is twisted and threaded to open the nozzle 14. Next, with the opening side of the nozzle 14 still facing upward, the nozzle 8 portion of the primary reactor A, which had been subjected to the primary reaction, was inserted into the nozzle 14 of the secondary reactor B, and the primary reactor A The pump section 7 is pushed several times with a finger to inject the test liquid 16 in the pump section 7 into the pump section 13 of the secondary reactor B. Next, with the tip portion of the nozzle 14 of the secondary reactor B facing upward, this was shaken to thoroughly mix the color former 12 and the test liquid 16, and then the pump inside the pump unit 13 was covered. The color of the test liquid 16 is compared with the color of a standard color chart (not shown) for measuring the free cyan concentration to determine the free cyan concentration.

In any of the simple colorimetric densitometers described above, the entire body can be integrally molded with a mold, so that the peripheral portion and the central portion of the pump portion can have the same thickness, and the pump portion can be covered depending on the location. The difference in the amount of the test solution does not cause a difference in shade in color development.

[0015]

[Effect of device]

 Since the present invention is implemented in the form described above, it has the following effects. The opening at the tip of the nozzle is opened by twisting the knob for opening the nozzle.Therefore, if this is turned up, the color former in the pump will not spill out of the container of the simple colorimeter and the opening of the nozzle The needle-shaped object does not hurt a finger or the like, and since the opening diameter of the nozzle is constant, the amount of the test liquid to be aspirated is also constant and the measured values do not vary. Also, since the entire simple colorimetric densitometer can be injection-molded, there is no color difference due to the difference in the liquid amount based on the position of the colorimetric part unlike sealing by crushing. Be accurate. When measuring the concentration, simply open it with the opening knob at the tip of the nozzle, suck the test solution into the pump and shake it, and compare the color with the standard color chart, or use this as the primary reactor and the secondary reactor. Open the tip of the nozzle of the reactor with the opening knob, inject the test liquid in the primary reactor from the opening, shake it, and compare it with the standard color chart. Since it is not necessary to do so, even an inexperienced person can easily perform measurement and handling at the measurement site becomes extremely simple. Moreover, not only the measurement of hydrogen ion concentration but also free cyanide and various other water quality can be safely measured on-site even by an inexperienced person.

[Brief description of drawings]

FIG. 1 is an overall front view showing an embodiment of a simple colorimetric densitometer according to the present invention.

FIG. 2 is a right side view of FIG.

3 is a vertical cross-sectional view of FIG.

FIG. 4 is a front view of a secondary reactor showing another embodiment of the simple colorimetric densitometer according to the present invention.

5 is a vertical cross-sectional view of the front surface in FIG.

6 is a vertical cross-sectional view of the side surface in FIG.

FIG. 7 is a diagram showing a usage example of a primary reactor and a secondary reactor.

FIG. 8A is a perspective view with a partial cross section showing an embodiment of a conventional simple colorimetric densitometer, and FIG. 8B is a cross sectional view of the whole.

[Explanation of symbols]

 5 ・ ・ Coloring agent 7 ・ ・ Pump section 8 ・ ・ Nozzle 9 ・ ・ Knob for opening 12 ・ ・ Coloring agent 13 ・ ・ Pump section 14 ・ ・ Nozzle 14a ・ ・ Exhaust pipe for gas-liquid separation A ・ ・ Primary reactor 15 ..Knob for opening B ... Secondary reactor

Claims (2)

[Scope of utility model registration request] 1. A pump section (7) containing a color former (5).
And a nozzle (8) extending in a hook shape on the side of the pump portion (7), and an opening knob (9) for the nozzle (8) provided by closing the tip of the nozzle (8). The simple colorimetric densitometer characterized in that the whole is formed in a sealed state by a transparent synthetic resin that can be seen through. 2. A pump section (7) containing a color former (5).
And a nozzle (8) extending in a hook shape on the side of the pump portion (7), and an opening knob (9) for the nozzle (8) provided by closing the tip of the nozzle (8). One of the primary reactor (A), which is formed of a flexible synthetic resin that is transparent in its entirety, in a sealed state, the pump section (13) in which the color former (12) is housed, and the pump section (13). A nozzle (14) extending to the side and having an opening (14a) into which the tip of the nozzle (8) of the primary reactor (A) can be inserted; and the tip of this nozzle (14) is closed. Nozzle (1
4) A simple colorimetric densitometer, which comprises the opening knob (15) of 4) and a secondary reactor (B) which is formed in a hermetically sealed state by a synthetic resin which is entirely transparent.