TW201520462A - Sterilized water fabricating device having feed forward control - Google Patents

Abstract

Sterilized water fabricating device having feed-forward control includes a electrolytic cell, a water pressure stabilizing unit, a water input, a brine barrel, a brine pump, a water pump, a DC power supply, and a control unit. Inside of the water pressure stabilizing unit includes an upper limit switch and a lower limit switch, providing stable output water pressure. The control unit, including a current proportioning apparatus, a digital-analog converter and a controller, receives feed-forward signal of electrolytic solution in the electrolytic cell, so that the result can be controlled by using the feed-forward controlling method. Thereby, the present invention has provided the way to do the current measurement differing from the traditional residual chlorine detection. Stability and adjustability of the system are improved by controlling and measuring the current signal, and the cost also has been cut down dramatically.

Description

Pre-controlled sterilizing aquatic product manufacturing device

The invention relates to a sterilizing aquatic product manufacturing device with pre-administration control, in particular to a sterilizing aquatic product manufacturing device suitable for electrolytic preparation.

The generation of electrolytic sterilizing water generally refers to a product obtained by electrolyzing an electrolyte aqueous solution containing a salt in an apparatus by energization of an electrode. Among them, a product of high free chlorine is produced at the anode, and the contents include chlorine gas, hypochlorous acid molecules, hypochlorite ions, hydrochloric acid and the like having microbial activity inhibiting ability. The distribution ratio of various substances in water varies with the pH of the pH. The cathode is a basic product, and the content includes elements such as hydrogen and sodium hydroxide.

However, in the past, the sterilizing water system controlled the residual chlorine (sterilization concentration, otherwise known as free chlorine) technology, and most of them used the residual chlorine detector, which uses platinum or gold as the electrode, applies a circulating voltage, and senses the residual chlorine concentration in the aqueous solution. However, the measurement components are expensive, and a system that stabilizes the output of residual chlorine, along with the cost of sensing, control, and output, is expensive.

In addition, the conventional electrolysis sterilizing water generating device does not combine the current feedforward control mode and the steady water pressure structural unit in the battery with the brine as the electrolyte. In the system architecture, the current signal control method of the present invention can convert the chemical quantity (free chlorine concentration) into a physical quantity (current) to detect, which not only increases the measurement range, but also greatly reduces the cost.

Because of this, in the spirit of active invention, this paper has a pre-existing sterilized aquatic product manufacturing device that can solve the above problems, and has completed the present invention after several research experiments.

The main object of the present invention is to provide a sterilizing water production device with pre-administration control, which can provide a current measurement method different from the traditional residual chlorine detection, and through the control and measurement of the current signal to improve the stability of the system. Sexuality and adjustability, and significantly reduce costs.

In order to achieve the above object, the pre-controlled sterilizing water production device of the present invention comprises an electrolytic cell, a steady water pressure unit, a clean water input end, a brine tank, a brine pump, a clear water pump, and a continuous current power source. And a control unit.

The electrolysis tank comprises a clear water inlet end, a brine inlet end and an electrolyzer outlet end, and the tank body electrolyzes the redox reaction to prepare sterilizing water. The steady water pressure unit has a water inlet unit of a steady water pressure unit and a water outlet end of a steady water pressure unit, and the interior includes an upper limit water level switch and a lower limit water level switch for detecting the liquid level to provide a stable water pressure output.

Among them, in the supply of electrolytic solution, including the water input end And a salt water tank, the salt water tank includes a salt water tank inlet end connected to the clean water input end and a brine tank water outlet end. Thereby, the electrolysis solution input of fresh water and brine is separately provided.

In addition, the brine pump includes a brine pump inlet connected to the outlet end of the brine tank and a brine pump outlet connected to the brine inlet end; the clean water pump includes a clear water pump inlet connected to the outlet end of the steady water pressure unit And a clear water pump outlet connected to the water inlet end. Thereby, the clean water input end is connected with the water pressure pressure unit and the salt water tank by a pipeline, and the input kinetic energy of the electrolytic solution is provided by the clean water pump and the brine pump respectively.

Furthermore, in the circuit control architecture, the DC power source is electrically connected to the electrolytic cell, and the control unit includes a current proportional device, an analog-to-digital converter, and a controller, and is electrically connected to the electrolytic cell, the saline pump, and the clean water pump. By receiving the current feedforward signal of the electrolytic solution of the electrolytic cell, the effect of the pre-control is achieved.

The control unit compares one of the residual chlorine target values set by the user and the current value of the electrolytic cell measured by the current ratio meter, and is converted into a digital voltage signal by an analog digital converter, and the salt water is controlled by the controller. The output frequency of the pump and the output frequency of the clean water pump can be adjusted to the percentage of the solution in the electrolytic bath by controlling the output frequency of the two pumps to obtain the desired residual chlorine concentration.

The above electrolysis cell, DC power source, and control unit may be disposed in a housing, for example, may exist in the same machine device as a whole The electrolysis device is operated independently.

The sterilizing water production device with controllable control of the present invention may further comprise a cooling unit coupled to the flow line of the electrolyte, for example, having a water inlet end of the cooling unit connected to the clean water input end and a stable The water-cooling unit is connected to the water-cooling end of the cooling unit, but it is not only installed here. Thereby, the electrolytic solution can be placed in a constant temperature state, and the dissolution rate of the electrode plate is accelerated due to the temperature change of the water inlet end, thereby reducing the service life. In addition, the sterilizing water production device may further comprise a sterilizing water storage barrel connected to the water outlet end of the electrolytic cell for storing the sterilizing water after the completion of the electrolytic reaction, that is, storing the sterilizing substance having hypochlorous acid, hypochlorite and the like. Electrolytic aqueous solution.

The voltage value of the above DC power supply can be 1~50 volts; the residual chlorine control range of the control unit can be 1~10000ppm, which means that the sterilizing aqueous solution of the required concentration can be controlled by setting the DC power supply size and the residual chlorine control range.

The current ratio meter may be a current-to-voltage converter; the controller may be a control unit such as a programmable logic controller (PLC) or a single chip. Thereby, the measured current value can be converted into a micro voltage, and after the converted digital voltage signal is interpreted, the output frequency of the clean water and the brine pump is previously controlled.

Among them, the output frequency of the clean water and brine pump can be a variable value. Therefore, the pump used in the present invention can adjust its frequency output, which means that the ratio of the flow rate of the clean water and the brine into the electrolytic cell can be changed.

The above summary and the following detailed description are exemplary. In order to further illustrate the scope of the patent application of the present invention. Other objects and advantages of the present invention will be described in the following description and drawings.

1‧‧‧Bactericidal Aquatic Equipment

2‧‧‧Shell

21‧‧‧electrolyzer

211‧‧‧ brine inlet

212‧‧‧clear water inlet

213‧‧‧ Electrolytic tank outlet

22‧‧‧DC power supply

23‧‧‧Control unit

231‧‧‧ Current ratio instrument

232‧‧‧ Analog Digital Converter

233‧‧‧ Controller

3‧‧‧Steady water pressure unit

31‧‧‧Stabilized water pressure unit inlet

32‧‧‧Stabilized water pressure unit outlet

33‧‧‧Upper limit water level switch

34‧‧‧lower water level switch

4‧‧‧Clear water input

41‧‧‧soft water unit

5‧‧‧Salt bucket

51‧‧‧ brine tank inlet

52‧‧‧ brine tank outlet

6‧‧‧Saline pump

61‧‧‧Saline pump inlet

62‧‧‧Saline pump outlet

7‧‧‧Clean water pump

71‧‧‧Clean water pump inlet

72‧‧‧Clean water pump outlet

8‧‧‧ cooling unit

81‧‧‧ Cooling unit inlet

82‧‧‧ Cooling unit outlet

9‧‧‧ sterilized water storage tank

1 is an overall architectural diagram of a preferred embodiment of the present invention.

2 is a flow chart showing the structure of a pipeline according to a preferred embodiment of the present invention.

3 is a schematic view of a water pressure unit according to a preferred embodiment of the present invention.

4 is a flow chart of a circuit control architecture in accordance with a preferred embodiment of the present invention.

Please refer to FIG. 1 , which is an overall structural diagram of a preferred embodiment of the present invention. The figure shows a sterilizing water production device 1 with a pre-control, comprising a casing 2, a water pressure pressure unit 3, a fresh water input end 4, a soft water unit 41, a salt water tank 5, a brine pump 6, A water pump 7, a cooling unit 8 and a sterilizing water storage tank 9 are provided. In the embodiment, the inside of the casing 2 includes an electrolytic cell 21, a DC power source 22, and a control unit 23, wherein the direction of the arrow in the figure is the flow direction of the solution.

Please refer to FIG. 2 as a flowchart of a pipeline structure according to a preferred embodiment of the present invention. From the perspective of the overall process structure, after the clean water enters the fresh water input terminal 4, it will first be filtered by the soft water unit 41, and then split into two parts, one of which enters the salt water tank 5 from the salt water inlet end 51 and is in the barrel. Sodium chloride was added to prepare a brine, which was then passed from a brine bucket outlet 52 to a brine pump 6.

The brine pump 6 is connected to the brine tank outlet end 52 through a brine pump inlet 61 such that the brine is pressurized by the brine pump 6 and the output frequency is adjusted, and then the brine pump outlet 62 enters the electrolytic cell 21.

On the other hand, the fresh water input end 4 communicates with the cooling unit 8 via the soft water unit 41, which is an ice machine or a commercially available cooling device, so that the electrolytic solution is placed in a constant temperature state, thereby avoiding the pole change due to the temperature change of the clean water input end. The plate dissolves faster and reduces the service life. The cooling unit 8 has a cooling unit inlet end 81 connected to the soft water unit 41 and a cooling unit outlet end 82 communicating with the steady water pressure unit inlet end 31. Therefore, after the cooling water is processed by the cooling unit, the cooling unit is connected to the water outlet end of the cooling unit. 82 enters the steady water pressure unit 3.

Next, please refer to FIG. 3 together, which is a schematic diagram of a water pressure unit according to a preferred embodiment of the present invention. The steady water pressure unit 3 has a water pressure pressure unit inlet end 31 and a steady water pressure unit water outlet end 32, and the interior includes an upper limit water level switch 33 and a lower limit water level switch 34 for detecting that the liquid level is too high or too low. , so that the water volume of the water storage device is always maintained at a certain capacity, and the effect of stabilizing the flow is achieved. After the water is cooled and discharged from the water outlet end 82 of the cooling unit, the water pressure unit is adjusted to adjust the water pressure and flow rate, and then The water supply end 32 of the steady water pressure unit communicates with the clean water pump inlet 71 and enters the clean water pump 7. At this time, after the fresh water pump 7 is pressurized and the output frequency is adjusted, the clean water pump outlet 72 enters the electrolytic cell 21. The output frequencies of the above-mentioned brine pump 6 and clean water pump 7 are all variable values, which means that the ratio of the flow rate of the clean water and the brine into the electrolytic cell can be changed.

Then, the brine enters the electrolytic cell 21 through the brine inlet end 211, and the clean water enters the electrolytic cell through the clean water inlet end 212, so that the brine and the clean water are mixed into the electrolytic aqueous solution in the electrolytic cell 21 for electrolysis reaction, and anodized, The role of cathodic reduction is to obtain a bactericidal target product such as hypochlorous acid or hypochlorite. After the reaction product is collected, it will enter the sterilizing water storage tank 9 from the water outlet end 213 of the electrolytic cell for storing the sterilizing water after the completion of the electrolytic reaction. Figure 1 to Figure 3 mainly illustrate the system architecture and connection relationship of the water pipeline, and the control method will be continued as follows.

Please refer to FIG. 4 , which is a flowchart of a circuit control architecture according to a preferred embodiment of the present invention. Please refer to the architecture diagram of FIG. 1 . In the circuit control architecture, the control unit 23 includes a current ratio meter 231, an analog-to-digital converter 232, and a controller 233. The DC power source 22 is electrically connected to the electrolytic cell 21, and the control unit 23 is electrically connected to the electrolytic cell 21. Brine pump 6 and clean water pump 7.

The control unit 23 sets a residual chlorine target value by the user, and the detection range is 1 to 10000 ppm, and the electrolytic reaction is started first by giving an initial current. In the process of electrolysis, the current proportionaling instrument 231, in this embodiment, is a current-voltage converter that continuously detects the current value in the electrolytic cell as a basis for pre-control, and simultaneously converts the current into a micro-voltage. The measurement range is expanded, and then the voltage analog signal is converted into a digital signal by the analog digital converter 232, mainly because the controller 233 in the latter stage can only respond to the reading signal to respond, and the controller 233 is a programmable logic. Programmable logic controllers (PLCs) mainly use integrated circuits instead of mechanical devices to achieve program control functions. Finally, the controller 233 can preliminarily control the output frequency of the brine pump 6 and the output frequency of the clean water pump 7 to achieve the free chlorine concentration expected by the user, thereby repeatedly adjusting the brine pump 6 and the clean water pump in this manner. 7, until the concentration tends to the target freedom The chlorine concentration is up to now.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

1‧‧‧Bactericidal Aquatic Equipment

2‧‧‧Shell

21‧‧‧electrolyzer

211‧‧‧ brine inlet

212‧‧‧clear water inlet

213‧‧‧ Electrolytic tank outlet

22‧‧‧DC power supply

23‧‧‧Control unit

3‧‧‧Steady water pressure unit

31‧‧‧Stabilized water pressure unit inlet

32‧‧‧Stabilized water pressure unit outlet

33‧‧‧Upper limit water level switch

34‧‧‧lower water level switch

4‧‧‧Clear water input

41‧‧‧soft water unit

5‧‧‧Salt bucket

51‧‧‧ brine tank inlet

52‧‧‧ brine tank outlet

6‧‧‧Saline pump

61‧‧‧Saline pump inlet

62‧‧‧Saline pump outlet

7‧‧‧Clean water pump

71‧‧‧Clean water pump inlet

72‧‧‧Clean water pump outlet

8‧‧‧ cooling unit

81‧‧‧ Cooling unit inlet

82‧‧‧ Cooling unit outlet

9‧‧‧ sterilized water storage tank

Claims (10)

A sterilizing aquatic product manufacturing device with pre-administration control includes: an electrolytic cell comprising a fresh water inlet end, a brine inlet end and an electrolysis tank outlet end; a steady water pressure unit having a steady water pressure unit The water end and a steady water pressure unit outlet end, the interior includes an upper limit water level switch and a lower limit water level switch for detecting the liquid level to provide a stable water pressure output; a clear water input end; a brine tank, including a The fresh water inlet is connected to the brine tank inlet end and the brine tank outlet end; a brine pump includes a brine pump inlet connected to the brine tank outlet end and a brine pump connected to the brine inlet end An outlet; a clear water pump comprising a clean water pump inlet connected to the water outlet end of the steady water pressure unit and a clear water pump outlet connected to the clean water inlet end; a direct current power source electrically connected to the electrolytic tank; a control unit comprising a current ratio meter, an analog-to-digital converter, and a controller electrically connected to the electrolytic cell, the brine pump and the clean water pump; wherein the control The metasystem compares one of the residual chlorine target values set by the user and the current value of the electrolysis cell measured by the current ratio meter, and is converted into a digital voltage signal by an analog digital converter, and the controller controls the following groups. One of the groups: the output frequency of the brine pump and the output frequency of the clean water pump. The sterilizing aquatic product manufacturing apparatus according to claim 1, wherein the electrolytic cell, the DC power source, and the control unit are disposed in a casing. The sterilizing aquatic product manufacturing device with the pre-controlled control according to the first aspect of the patent application, further comprising a cooling unit, having a water inlet end of the cooling unit connected to the clean water input end and a water pressure constant The water outlet end of the cooling unit connected to the water inlet end of the unit. The sterilized aquatic product manufacturing device with the pre-administration control mentioned in claim 1 further comprises a sterilizing water storage tank connected to the water outlet end of the electrolytic cell. The sterilized aquatic product manufacturing device with the pre-administration control mentioned in the first aspect of the patent application, wherein the voltage value of the direct current power source is 1 to 50 volts. The sterilized aquatic product manufacturing device with the pre-authorization control described in the first aspect of the patent application, wherein the residual chlorine control range of the control unit is 1 to 10000 ppm. The sterilized aquatic product manufacturing device with the prior control according to the first aspect of the patent application, wherein the current proportionaling device is a current-voltage converter. The sterilized aquaculture device with the pre-administration control described in the first aspect of the patent application, wherein the controller is a programmable logic controller. The sterilized aquatic product manufacturing device with the pre-controlled control according to the first aspect of the patent application, wherein the output frequency of the clean water pump is a variable value. The sterilized aquatic product manufacturing apparatus of the above-mentioned patent control scope, wherein the output frequency of the brine pumping is a variable value.