JP2018155610A - Automatic measurement/supply method of liquid and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic measurement/supply method and device capable of safely diluting even the drug solution toxic to the human body and the liquids of various types high in viscosity to a certain extent and capable of accurately and automatically measuring the capacitance and supplying a predetermined amount of the drug solution.SOLUTION: An automatic measurement/supply method of a liquid includes: one piece of a pipe vertically set up in a standing manner or at least two or more transparent resin-made metering pipes having the same or different diameter (inner diameter); and a sensor mounted vertically with one piece of a scale plate along the pipe (or a group of the pipes) and detecting a drug solution filled in the pipe and a preset water level of the water (dilution water) by the scale plate on the outside of the pipe. The metering pipe is injected from below first with the drug solution after injecting the water (dilution water) up to the predetermined position so as to dilute the drug solution in a mixed manner. The sensor is caused to vertically slide by an actuator having a manual or an automatic positioning mechanism so that an upper limit water level of the drug solution inside the metering pipe is changed, thereby adjusting an amount of the injected drug solution.SELECTED DRAWING: Figure 1

Description

  The present invention automatically measures the volume of chemicals that are harmful to the human body and multiple types of highly viscous liquids safely and dilute in machinery and equipment such as dyeing machines, commercial laundry cleaning machines, and food seasoning manufacturing equipment. In addition, the present invention relates to a method and apparatus for automatically measuring and supplying a liquid that can supply a predetermined amount.

  Liquids to be weighed in various liquid manufacturing and research facilities may contain harmful substances, which are dangerous and have different viscosities of liquid chemicals to be weighed. As an apparatus for measuring such various liquids, for example,

B) When sucking a chemical into a cylinder and then supplying it to a predetermined device like a syringe, the cylinder is reversely operated to close a check valve provided in the suction portion, and the chemical in the cylinder is supplied to the predetermined device. To discharge and supply to the

B) There is a method of discharging a chemical solution stored in a raw material container (tank) installed in a high place to a receiving container through a valve, measuring its weight, and converting it into a capacity.

  However, in the above method a), there are many small-scale methods. In the case of a viscous liquid, the cylinder that sucks the liquid does not operate smoothly, so it is necessary to dilute the viscous liquid in advance. It becomes. In addition, when the chemical solution is diluted, it becomes unstable and requires stirring and heating, and a device for that purpose and a space for supplementing the metering chemical are also required.

  In the method (b), in the case of a viscous liquid, even if the valve is closed, it does not stop immediately, but liquid dripping occurs, and there is a drawback that measurement is not accurate.

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  The present invention automatically measures a chemical solution while diluting a chemical solution containing a harmful substance or a liquid to be measured (chemical solution) having a relatively high viscosity with water (diluted water). We propose a device and method that can safely and automatically weigh and supply.

  That is, the present invention is a vertically standing one or at least two or more transparent resin measuring pipes having the same or different diameter (inner diameter) and one piece along the pipe (or pipe group). A scale plate is attached in the vertical direction, and on the outside of the pipe is provided with a sensor for detecting a preset water level of the chemical solution and water (diluted water) filled in the pipe by the scale plate. From below, water (diluted water) is injected into the predetermined position first, and then the chemical solution is injected. As a result, the chemical solution is mixed and diluted, and the viscosity of the chemical solution is adjusted. It is possible to measure the amount, and by sliding the sensor up or down with an actuator equipped with a manual or automatic positioning mechanism, the upper limit water level of the medicinal solution in the measuring pipe is changed to Adjusted to a method and apparatus which can be safely and simply and easily metered.

  The configuration of this device will be described more specifically. For example, this device comprises a weighing machine main body and a control panel, and the weighing machine main body has at least two transparent resins having the same or different diameters. The measuring pipes are vertically installed in parallel, and one scale plate is vertically attached along one side of one of the pipes. In the horizontal direction, each lower end is displayed as zero, and different scales are displayed in parallel in the horizontal direction corresponding to the measuring pipe to which the chemical solution is to be injected and weighed. A slider that can slide up and down closely along the pipe is attached to the outer periphery of the slider, and a slider clamping dial is provided on the slider. One end of the slider is transparent toward the front of the scale plate. Strip-shaped indicator Is attached in the horizontal direction, and a thin horizontal indicator line is displayed at the center of the indicator plate so as to pass through the scales displayed in parallel on the scale plate. A water supply pipe for injecting water into the pipe through a valve and a chemical liquid supply pipe for injecting a chemical liquid through another valve are connected to the draining pipe always communicating with the basic measuring pipe, The other measuring pipes are connected to the pouring pipe via open / close valves, respectively, and a discharging pipe communicating with the pouring pipe is provided via a discharge valve at the lower end of the measuring machine body. Is.

  In addition, after the chemical liquid measurement is completed, or when other chemical liquids are to be injected and metered, once the mixed water of the chemical liquid and water in the device has been drained, water is poured into the measuring pipe from the bottom of the device to its upper end. It is possible to clean the inside of the measuring pipe by discharging it later.

  Further, if the slider provided with the sensor for detecting the position of the upper surface of the chemical in the basic measuring pipe is slid in the vertical direction by an actuator provided with an automatic positioning mechanism, for example, the scale described above will be described later. It is possible to measure chemicals without using a plate.

  In the present invention, gel-like and water-like high-viscosity things are not subject to measurement.

According to the present invention, since the chemical solution is injected into the measuring pipe from the bottom after the water (diluted water) is first added, the resulting chemical solution is diluted and the viscosity of the chemical solution is adjusted. There is no need for stock space for dilution.
Moreover, even when measuring a chemical solution that is harmful to the human body, it can be safely measured because it does not touch the hand or body directly.

  If the capacity of one measuring pipe is insufficient, prepare a plurality of vertically transparent measuring pipes with the same or different diameter (for example, three types of small diameter, medium diameter, and large diameter). It is possible to accurately measure and supply a chemical solution up to a large volume.

  In addition, when supplying a large amount of chemical liquid such as one kind of dye, it can be repeatedly supplied. In this case, after putting water to a predetermined position in the measuring pipe as described above, Repeat the operation of injecting the chemical solution to the set position.

  Furthermore, when measuring other chemicals, drain all the mixed dilution water of chemicals and water in the main body of the measuring machine including the measuring pipe to the outside, and then remove only the water from the lower part of the main body of the measuring machine. Inject to the upper end of the measuring pipe and clean it, and discard the liquid after cleaning from the bottom of the main body of the measuring machine.

1 is an overall front explanatory view showing an embodiment of an automatic liquid metering / supplying device according to the present invention.

  Hereinafter, as an example of the present invention, an automatic metering / supplying device for liquid chemicals such as dyes to be supplied to a dyeing machine for textile products, process chemicals, functional agents, pH adjusters, etc. will be described as an example with reference to the accompanying drawings. To do.

  This apparatus comprises a measuring machine main body A and a control panel B. In this embodiment, FIG. 1 shows an example in which three measuring pipes having different diameters are used. A transparent measuring pipe 1 made of synthetic resin with an inner diameter of 30 mmφ, a transparent measuring pipe 2 with a large diameter (for example, an inner diameter of 75 mmφ) on the right side, and a transparent measuring pipe 3 with a medium diameter (for example, an inner diameter of 50 mmφ) on the left side is set up.

  4 is a scale plate fixedly installed on the side of the basic center small-diameter pipe 1. In the figure, four different scales are displayed in the horizontal direction, and only the lower end of each scale is There are 0 (zero point) indications at the same height position, and the scale 4a at the right end indicates the amount of chemical liquid injected into the small pipe 1 at the center. For example, the upper part is displayed up to 300 ml.

  The second scale 4b from the right indicates the total injection amount of the center pipe 1 and the left middle diameter pipe 3, and for example, the upper part is displayed up to 1100 ml. The third scale 4c from the right indicates the total injection amount of the central pipe 1 and the right large-diameter pipe 2, and for example, the upper part is displayed up to 2200 ml. The leftmost scale 4d indicates the total injection amount when a chemical solution such as a dye is simultaneously injected into the three large, medium, and small pipes 2, 1, and 3. For example, the upper part is displayed up to 3000 ml. .

  Reference numeral 5 denotes a slider that can slide up and down closely along the outer periphery of the central small-diameter pipe 1. The slider 5 is provided with a tightening dial 6, and the slider 5 is rotated by the rotation of the dial 6. It can be tightened and fixed at any height position. A transparent strip-shaped indicator plate 7 made of synthetic resin is horizontally attached to one end of the slider 5 toward the front surface on the scale plate 4 side, and the scale plate 4 is disposed at the center of the indicator plate 7. A horizontal thin instruction line 7a is displayed so as to be passed over the entire scales 4a to 4d. The slider 5 can be moved up and down by manual operation of the tightening dial 6, but can also be operated by an actuator having an automatic positioning mechanism.

  Reference numeral 8 denotes a chemical solution supply pipe that is injected into the measuring pipe 1 and the like from the lower side of the apparatus A, and a chemical solution such as a staining solution is supplied from a chemical solution tank (not shown) arranged above.

  Reference numeral 9 denotes a water supply pipe for injecting water (diluted water) into the measuring pipe 1 or the like as will be described later from below the apparatus A.

  Reference numeral 10 denotes a short injection / removal pipe that always communicates with the small-diameter pipe 1 immediately below the central small-diameter pipe 1. The chemical solution from the chemical solution supply pipe 8 is supplied to the injection / discharge pipe 10 from below via a chemical solution supply valve 11. The water from the water supply pipe 9 is supplied from below through the water supply valve 12. The chemical solution supply valve 11 and the water supply valve 12 are air valves or solenoid valves, and are automatically controlled to open and close by the switches 13a and 13b provided in the control panel B described above.

  Accordingly, the supply and measurement of the chemical solution to the weighing machine main body A are performed as follows.

  First, the discharge valve 15 provided in the discharge pipe 14 extending downward from the lower end of the weighing machine main body A is closed, the water supply valve 12 is opened first, and water (diluted water) is supplied from the water supply pipe 9 through the pouring pipe 10. Into the central small-diameter pipe 1. A position detection sensor 16 such as a phototube is disposed at the same height as the zero point position of the scale plate 4 outside the small-diameter pipe 1, and the sensor 16 detects the upper surface of water injected into the small-diameter pipe 1. Then, the water supply valve 12 is closed by the instruction of the electric signal from the control panel B, and the injection of water into the small diameter pipe 1 is stopped.

  Next, with the water supply valve 12 closed, the chemical solution supply valve 11 is automatically opened by an electric signal this time, and the chemical solution from the chemical solution supply pipe 8 is supplied to the central small-diameter pipe 1 through the discharge pipe 10. Inject to a predetermined height. Thereby, since water (diluted water) is first put into the small-diameter pipe 1 from below and then the chemical solution is injected from below, the chemical solution is efficiently mixed with water by stirring and diluting.

  At the lower end of the slider 5 on the outer periphery of the small-diameter pipe 1, a liquid level upper end position detection sensor 17 such as a photoelectric tube is provided at the same height as the horizontal indicator line 7 a of the transparent indicator plate 7 extending in front of the scale plate 4. 17 and the scale plate 4 are slidable up and down together with the slider 5, and by fixing the slider 5 by operating the tightening dial 6 at an arbitrary height position of the small diameter pipe 1, a chemical solution to be injected into the small diameter pipe 1 in advance is provided. When the upper surface position is set and the upper surface position of the chemical solution reaches this set position, the liquid surface upper position detection sensor 17 detects this, and the chemical solution supply valve 11 is closed by an instruction of an electric signal from the control panel B. The injection of a chemical solution such as a dye into the small diameter pipe 1 is stopped.

  18 is a float inserted into the small-diameter pipe 1, and it is easy to visually detect the zero position of the first water (diluted water) and the upper surface position of the set injection amount of the chemical liquid to be injected thereafter with a sensor. It is used to be able to confirm.

  When the volume of the chemical solution to be used is large, there are cases where both the left-handed middle-diameter pipe 3 or the right-handed large-diameter pipe 2 or three pipes are used. The manual valve 19 for a medium diameter pipe that is installed in the middle of communication with the exhaust pipe 10 is opened. When the large diameter pipe 2 is used, the manual valve 20 for a large diameter pipe that is installed in the middle of communication with the discharge pipe 10 is used. When both the large, medium, and small measuring pipes 2, 3, and 1 are used at the same time, both the manual valves 19 and 20 are both opened and used.

  Not only when using the small-diameter pipe 1, but also when measuring chemicals using two or three of these pipes, water is first injected to a predetermined position (zero point position) in the same manner as described above. After that, inject the chemical to the set position. Further, which measuring pipe is used to measure the required amount of the chemical solution can be immediately determined by looking at the scales 4a to 4d of the scale plate 4.

  The upper ends of the measuring pipes 1 to 3 may be left open. However, in order to effectively stir and mix a chemical solution such as a dye having a relatively high viscosity with water (diluent), the upper surface of the pipe is closed and an air bleeding pipe is used. 21 may be provided so that the air bleeding amount can be adjusted.

  When the measurement of the amount of one kind of chemical solution is completed, the discharge valve 15 provided in the discharge pipe 14 below the measuring machine main body A is opened, and all the chemical solution and water mixture remaining in the device A are removed. It is supplied directly from the discharge pipe 14 to a dyeing machine (not shown) or a predetermined container.

  Whether or not all of the liquid mixture of the chemical liquid and water has been discharged and supplied from the measuring machine main body A is detected by a no water (empty) confirmation sensor 22 using a photoelectric tube or the like provided in the pouring pipe 10.

  Next, since the inner surfaces of the measuring pipes 1 to 3 and the discharge pipe 10 where the chemical liquid such as the dyeing liquid has been measured are contaminated with the chemical liquid, only the water supply valve 12 is opened and water ( Water is supplied to the upper end of the measuring pipe where the chemical has been measured through the pouring / dispensing pipe 10, and then the discharge valve 15 at the lower end of the main body A is automatically operated by the automatic operation of the switch 13c provided in the control panel B. The inside of the measuring pipe is cleaned by opening and discarding it from the discharge pipe 14 to the outside.

  As a result, when other chemicals are to be weighed, one or more of the cleaned measuring pipes 1 to 3 is first filled with water to a predetermined position and then poured into a predetermined height position. The mixed water of the chemical solution and water is supplied to a predetermined device by the same operation as described above, and then the operation of washing with water is performed.

  When supplying a large amount of chemical liquid such as one type of dyeing liquid, it is necessary to repeatedly supply the chemical liquid by operating the repetitive switch 23 provided in the control panel B. Thereafter, whether or not all of the liquid mixture of the chemical liquid and water is discharged and supplied from the measuring machine main body A is detected by the water absence (empty) confirmation sensor 22, and then water is supplied to wash the measuring pipe and the like.

  Further, the slider 5 provided with the sensor 17 for detecting the upper end position of the chemical solution in the basic measuring pipe 1 is slid in the vertical direction by an actuator (not shown) using, for example, a small stepping motor or servo motor. As described above, if the volume of the chemical solution to be metered is digitally displayed on the control panel B, and the selection of the measuring pipe to be used by automatic calculation and the positioning of the upper end position of the chemical solution to be injected into the metering pipe can be performed, the above-mentioned A scale plate is not required. However, before the cleaning of the zero point position detection sensor 16 for water to be put into the measuring pipe or the measuring machine main body A, all of the liquid mixture of the chemical liquid and water is discharged and supplied from the measuring machine main body A to the outside. The water absence (empty) confirmation sensor 22 provided in the pouring pipe 10 for detecting the above is necessary.

  In addition to supplying chemicals such as dyes to dyeing machines for textile products, the apparatus of the present invention may be used for measuring and supplying multiple types of seasoning liquids when manufacturing liquid seasonings such as grilled meat sauce. Alternatively, it can also be used when supplying a plurality of chemicals to a commercial laundry cleaning machine, and can be used for various devices and machines that need to accurately measure the liquid to be supplied.

A-Weighing machine main body B-Control panel 1-Small diameter pipe in the center 2-Large diameter pipe on the right side 3-Medium diameter pipe on the left side 4-Scale plate 5-Slider 6-Slider tightening dial 7-Strip-shaped indicator plate 8-Chemical liquid supply pipe 9-Water supply pipe 10-Pouring pipe 11-Chemical liquid supply valve 12-Water supply valve 13-Switch (liquid supply, water supply, discharge)
14-discharge pipe 15-discharge valve 16-zero point position detection sensor 17-liquid level upper end position detection sensor 18-float 19-manual valve 20-manual valve 21-air vent pipe 22-no water (empty) confirmation sensor 23- Repeat switch 24-start button 25-stop button

Claims (5)

  At least one transparent measuring pipe installed upright vertically, and a slider that can slide up and down along the outer periphery of the pipe, and a scale on the side of the pipe along the pipe A plate is attached in the vertical direction, and the slider is provided with a sensor for detecting a preset water level of the chemical solution to be filled in the pipe by the scale plate. After opening the valve and injecting water to the specified position, stop water supply, then open the valve on the lower chemical liquid supply pipe to inject the chemical liquid to the set height in the measuring pipe, so that the chemical liquid is mixed with water in the measuring pipe A method for automatically measuring and supplying a liquid, characterized in that the mixture is diluted and then the mixed diluted liquid is supplied to the outside through a valve from a pouring pipe below the main body of the measuring machine.   A sensor for detecting the upper end position of the chemical solution in the measuring pipe, comprising at least one transparent measuring pipe standing upright on the main body of the measuring machine and a slider slidable up and down along the outer periphery of the pipe. The above-mentioned slider equipped with is configured to slide up and down by an actuator, the control panel displays the volume of the chemical to be metered digitally, selects the metering pipe to be used by automatic calculation, and injects it into the metering pipe The upper end position of the chemical solution to be positioned can be determined, and the water supply is stopped after the water supply pipe is opened to the predetermined position by opening the valve of the water supply pipe from below, and then the water supply is stopped. Open the valve and inject the chemical solution to the set height in the measuring pipe, so that the chemical solution is mixed and diluted with water in the measuring pipe. A method for automatically measuring and supplying a liquid, wherein the mixed diluent is supplied to the outside from a discharge pipe through a valve.   A predetermined amount of chemical solution is injected into the measuring pipe, the amount of the chemical solution is measured, and once the mixed dilution water of the chemical solution and water in the measuring machine body has been drained to the outside, the valve of the chemical solution supply pipe is closed and the measuring device is 3. The inside of the measuring pipe is cleaned by opening the valve of the water supply pipe into the measuring pipe from below the main body, injecting water to the upper end thereof, and then discharging from the lower side of the main body of the measuring machine. Automatic liquid metering and supply method as described.   It consists of a weighing machine main body and a control panel, and at least two or more transparent resin measuring pipes having the same or different diameters are vertically installed in parallel in the weighing machine main body. One scale plate is attached vertically along the pipe on either side of the base, and each scale plate is marked with zero at the lower end in the horizontal direction. Different scales displaying the total amount corresponding to the power measuring pipe in the vertical direction are displayed in parallel in the horizontal direction, and the slider is slidable vertically up and down along the pipe on the outer periphery of the basic measuring pipe The slider is provided with a slider tightening dial. A transparent strip-shaped indicator plate is attached to one end of the slider toward the front surface of the scale plate in the horizontal direction. The scale plate above A horizontal thin indicator line is displayed so as to pass over the entire scale displayed in parallel, and below the main body of the measuring machine, a water supply pipe for injecting water into the measuring pipe via a valve and other A chemical supply pipe for injecting a chemical solution through a valve is connected to an injection / discharge pipe that always communicates with the above-described basic measurement pipe, and the above-mentioned injection / discharge pipe is connected to each other below the other measurement pipe via an open / close valve. An automatic liquid metering / supplying device, characterized in that a discharge pipe is provided at the lower end of the weighing machine body and communicates with the pouring pipe via a discharge valve. Outside the basic measuring pipe, the zero point position detection sensor for confirming the zero point position on the scale plate indicating the upper limit of the water previously put into the pipe and the basic measuring pipe is injected. Whether or not all of the water has been discharged to the outside from the main body of the measuring machine provided in the upper liquid level position detection sensor that confirms the upper surface position of the chemical and the lower discharge pipe that always communicates with the basic measuring pipe The automatic metering / supplying device for viscous liquid according to claim 4, further comprising a waterless detection sensor for checking.

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