Gas supply control method

Abstract

The present invention discloses a gas supply control method, which adopts one of an internal gas supply mode, an external gas supply mode and a mixed gas supply mode to supply gas. During the gas supply process, it is judged whether the carbon dioxide in the built-in carbon dioxide gas cylinder and the external carbon dioxide gas cylinder is insufficient or exhausted. The present invention has the advantages of being able to ensure that the carbon dioxide gas supply meets the requirements and ensure the preparation effect of the disinfectant.

Description

Technical Field

[0001] The invention relates to the technical field of hypochlorous acid disinfectant preparation, in particular to a gas supply control method. Background Art

[0002] An existing method for preparing a hypochlorous acid disinfectant comprises the following steps: delivering a stock solution to a gas-liquid mixing control module through an injection pump, water through a water pump, and carbon dioxide through an air pump; mixing the stock solution, water, and carbon dioxide in the gas-liquid mixing control module to prepare a hypochlorous acid disinfectant, and delivering the hypochlorous acid disinfectant to a hypochlorous acid storage tank through an infusion tube; the carbon dioxide is contained in a carbon dioxide gas cylinder, and the valve is opened so that the carbon dioxide can be delivered to the hypochlorous acid mixing control module. When the amount of carbon dioxide in the carbon dioxide gas cylinder is insufficient, the gas cylinder cannot be replaced in time, which affects the preparation of the hypochlorous acid disinfectant. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned deficiencies of the prior art and provide a gas supply control method, which can ensure that the carbon dioxide supply meets the requirements and ensure the preparation effect of the disinfectant.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A gas supply control method, characterized in that: gas is supplied by adopting one of an internal gas supply mode, an external gas supply mode, and a mixed gas supply mode;

[0006] The gas supply method in internal gas supply mode is:

[0007] Step S1.1: the internal air inlet valve is opened and the internal carbon dioxide cylinder supplies gas;

[0008] Step S1.2: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S1.3; if not, jump to step S1.1;

[0009] Step S1.3: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S1.5, if not, jump to step S1.4;

[0010] Step S1.4: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S1.1, the built-in carbon dioxide cylinder continues to supply gas;

[0011] Step S1.5: It indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted and the production is automatically stopped;

[0012] The gas supply methods in external gas supply mode are:

[0013] Step S2.1: the external air inlet valve is opened and an external carbon dioxide gas cylinder is used to supply gas;

[0014] Step S2.2: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S2.3; if not, jump to step S2.1;

[0015] Step S2.3: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S2.5, if not, jump to step S2.4;

[0016] Step S2.4: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S2.1, the external carbon dioxide cylinder continues to supply gas;

[0017] Step S2.5: It is indicated that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and production is automatically stopped;

[0018] The mixed gas supply mode uses one of the gas supply methods 1 and 2 for gas supply. The gas supply method 1 is:

[0019] Step S3.1: the inner air inlet valve is closed, the outer air inlet valve is opened, and an external carbon dioxide cylinder is used to supply gas;

[0020] Step S3.2: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.3; if not, jump to step S3.1;

[0021] Step S3.3: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if so, jump to step S3.5, if not, jump to step S3.4;

[0022] Step S3.4: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S3.1, the external carbon dioxide cylinder continues to supply gas;

[0023] Step S3.5: It is indicated that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and the process continues to step S3.6;

[0024] Step S3.6: the outer air inlet valve is closed, the inner air inlet valve is opened, and the built-in carbon dioxide cylinder supplies gas;

[0025] Step S3.7: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.8; if not, jump to step S3.6;

[0026] Step S3.8: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S3.10, if not, jump to step S3.9;

[0027] Step S3.9: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S3.6, the built-in carbon dioxide cylinder continues to supply gas;

[0028] Step S3.10: prompting that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted;

[0029] Step S3.11: Automatically stop production;

[0030] Gas supply method 2 is:

[0031] Step S4.1: the outer air inlet valve is closed, the inner air inlet valve is opened, and the built-in carbon dioxide cylinder supplies gas;

[0032] Step S4.2: Determine whether the internal carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S4.3; if not, jump to step S4.1;

[0033] Step S4.3: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S4.5, if not, jump to step S4.4;

[0034] Step S4.4: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S4.1, the built-in carbon dioxide cylinder continues to supply gas;

[0035] Step S4.5: It is indicated that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and the process continues to step S4.6;

[0036] Step S4.6: the inner air inlet valve is closed, the outer air inlet valve is opened, and the external carbon dioxide cylinder is used to supply gas;

[0037] Step S4.7: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide, if yes, jump to step S4.8, if not, jump to step S4.6;

[0038] Step S4.8: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S4.10, if not, jump to step S4.9;

[0039] Step S4.9: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S4.6, the external carbon dioxide cylinder continues to supply gas;

[0040] Step S4.10: prompting that the carbon dioxide in the external carbon dioxide cylinder has been exhausted;

[0041] Step S4.11: Automatically stop production;

[0042] You can flexibly choose to use the built-in gas supply mode and the external gas supply mode. When the gas supply demand is large, choose the mixed gas supply mode. As long as the carbon dioxide gas in any gas cylinder meets the production conditions, production can continue. This can ensure that the carbon dioxide gas supply requirements are met, the preparation effect of the disinfectant is guaranteed, and at the same time ensure that the user can replace the gas cylinder in time.

[0043] In the gas supply method of the mixed gas supply mode of the present invention, when it is determined in step S3.2 that there is sufficient carbon dioxide and / or when it is indicated in step S3.4 that there is insufficient carbon dioxide in the external carbon dioxide cylinder, the following steps are continued:

[0044] Step S3.12: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.13; if not, jump to step S3.1;

[0045] Step S3.13: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S3.15, if not, jump to step S3.14;

[0046] Step S3.14: prompt that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jump to step S3.1;

[0047] Step S3.15: prompting that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and jumping to step S3.1;

[0048] When the external gas supply mode is used, the carbon dioxide in the built-in carbon dioxide cylinder is also detected. If the carbon dioxide gas in the built-in carbon dioxide cylinder is insufficient or exhausted, the user can replace the cylinder with a new one in time.

[0049] In the gas supply method 1 of the mixed gas supply mode of the present invention, when step S3.10 indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, continue with the following steps:

[0050] Step S3.16: The inner air inlet valve is closed, the outer air inlet valve is opened, and the external carbon dioxide cylinder is used to supply gas;

[0051] Step S3.17: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.18; if not, jump to step S3.16;

[0052] Step S3.18: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S3.20, if not, jump to step S3.19;

[0053] Step S3.19: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S3.16, the external carbon dioxide cylinder continues to supply gas;

[0054] Step S3.20: prompting that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and jumping to step S3.11;

[0055] When preparing disinfectant, the internal and external modes are automatically switched according to the amount of carbon dioxide in the internal and external carbon dioxide cylinders to ensure sufficient gas source for preparing disinfectant.

[0056] In the gas supply method 1 of the mixed gas supply mode of the present invention, when step S3.20 indicates that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, the process jumps to step S3.6, and the internal carbon dioxide cylinder continues to supply gas;

[0057] Realize cyclic switching of gas supply source to ensure gas supply effect.

[0058] In the second gas supply method of the mixed gas supply mode of the present invention, when it is determined in step S4.2 that there is sufficient carbon dioxide and / or when it is indicated in step S4.4 that there is insufficient carbon dioxide in the built-in carbon dioxide cylinder, the following steps are continued:

[0059] Step S4.12: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide, if yes, jump to step S4.13, if not, jump to step S4.1;

[0060] Step S4.13: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S4.15, if not, jump to step S4.14;

[0061] Step S4.14: prompt that the external carbon dioxide cylinder is insufficient, and jump to step S4.1;

[0062] Step S4.15: prompting that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and jumping to step S4.1;

[0063] When the internal gas supply mode is in use, the carbon dioxide in the external carbon dioxide cylinder is also detected. If the carbon dioxide gas in the external carbon dioxide cylinder is insufficient or exhausted, the user can replace the cylinder with a new one in time.

[0064] In the second gas supply method of the mixed gas supply mode of the present invention, when step S4.10 indicates that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, continue with the following steps:

[0065] Step S4.16: The outer air inlet valve is closed, the inner air inlet valve is opened, and the built-in carbon dioxide cylinder supplies gas;

[0066] Step S4.17: Determine whether the internal carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S4.18; if not, jump to step S4.16;

[0067] Step S4.18: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S4.20, if not, jump to step S4.19;

[0068] Step S4.19: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S4.16, the built-in carbon dioxide cylinder continues to supply gas;

[0069] Step S4.20: prompting that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and jumping to step S4.11;

[0070] When preparing disinfectant, the internal and external modes are automatically switched according to the amount of carbon dioxide in the internal and external carbon dioxide cylinders to ensure sufficient gas source for preparing disinfectant.

[0071] In the second gas supply method of the mixed gas supply mode of the present invention, when step S4.20 indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, the process jumps to step S4.6, and the external carbon dioxide cylinder continues to supply gas;

[0072] Realize cyclic switching of gas supply source to ensure gas supply effect.

[0073] After the internal gas supply mode and the external gas supply mode in the mixed gas supply mode of the present invention are continuously switched for more than N seconds, production is automatically stopped.

[0074] The present invention uses at least one of a pH value detection method, a weighing method, a gas pressure difference method, and a water pressure and air pressure comparison method to determine whether the carbon dioxide in the external carbon dioxide cylinder and the internal carbon dioxide cylinder is insufficient or exhausted;

[0075] The method of pH value detection is:

[0076] A PH sensor is provided, and a PH threshold is set. The PH sensor detects the PH value of the hypochlorous acid disinfectant, and a judgment is made based on the comparison between the detected PH value and the set PH threshold;

[0077] The method of weighing is as follows:

[0078] A weighing module is provided, and a weight threshold of the weighing module is set. The internal carbon dioxide gas cylinder and the external carbon dioxide gas cylinder are weighed by the weighing module. By measuring the total weight of the internal carbon dioxide gas cylinder and the external carbon dioxide gas cylinder and comparing it with the set weight threshold, it is judged whether the carbon dioxide is insufficient or exhausted;

[0079] The method of determining by air pressure difference method is:

[0080] An air inlet channel, an air outlet channel, a gas pressure sensor 1 and a gas pressure sensor 2 are provided, an external carbon dioxide gas cylinder and an internal carbon dioxide gas cylinder are connected to the air inlet channel, the air inlet channel is connected to the air outlet channel, the gas pressure sensor 1 is installed on the air inlet channel, and the gas pressure sensor 2 is installed on the air outlet channel;

[0081] The gas pressure sensor 1 detects the gas pressure of the inlet channel or the inlet channel, and the gas pressure sensor 2 detects the gas pressure of the outlet channel. The pressure difference value is calculated according to the gas pressure of the inlet channel and the gas pressure of the outlet channel. The flow value of carbon dioxide is calculated according to the pressure difference value. The flow value of carbon dioxide is compared with the set flow threshold value to determine whether the carbon dioxide is insufficient or exhausted.

[0082] The method of comparing water pressure and air pressure is as follows:

[0083] A water channel, a gas channel, a water pressure sensor and a gas pressure sensor 1 are provided. The water channel is connected to the water inlet of the gas-liquid mixing control module. The external carbon dioxide gas cylinder and the internal carbon dioxide gas cylinder are connected to the gas inlet of the gas-liquid mixing control module through the gas channel. The water pressure sensor detects the water pressure value of the water channel, and the gas pressure sensor 1 detects the gas pressure value of the gas channel.

[0084] By comparing the air pressure value with the water pressure value, it is possible to judge whether the carbon dioxide is insufficient or exhausted;

[0085] The pH value detection method, weighing method, gas pressure difference method, water pressure and air pressure comparison method can all be used to monitor the amount of carbon dioxide in the gas cylinder in real time.

[0086] The specific method for detecting and determining the pH value of the present invention is:

[0087] Open the water inlet and sewage valves, close the liquid outlet and air inlet valves, close or reduce the opening of the gas flow regulating valve, and delay the closing of the water inlet and sewage valves;

[0088] Determine whether the pH value is between C3 and C4. If yes, continue to determine. If not, it is determined that the water quality is abnormal or the pH sensor initialization fails or the pH sensor is abnormal.

[0089] Open the air inlet valve, water inlet valve and liquid outlet valve, and adjust the opening of the gas flow regulating valve;

[0090] Determine whether the PH value is less than C1. If so, it is determined that there is a problem and the production is automatically stopped and an alarm is issued. If not, continue to determine whether the PH value is greater than C2 (C2 is greater than C1, and C2 is less than C3);

[0091] Determine whether the pH value is greater than C2. If so, increase the opening of the gas flow regulating valve. If not, it means that the gas supply is sufficient.

[0092] Continue to determine whether the pH value is greater than C3. If so, it is determined that the carbon dioxide in the carbon dioxide cylinder is exhausted, and production is automatically stopped and an alarm is issued. If not, it is determined that the carbon dioxide is insufficient.

[0093] The beneficial effects of the present invention are as follows: the built-in gas supply mode and the external gas supply mode can be flexibly selected for use; when the gas supply demand is large, the mixed gas supply mode is selected; as long as the carbon dioxide gas in any gas cylinder meets the production conditions, production can continue, thereby ensuring that the carbon dioxide gas supply requirements are met, ensuring the preparation effect of the hypochlorous acid disinfectant, and ensuring that the user can replace the gas cylinder in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] Figure 1 It is a structural diagram of the inlet and outlet liquid measurement control module.

[0095] Figure 2 yes Figure 1 Main view.

[0096] Figure 3 yes Figure 2 Middle AA section view.

[0097] Figure 4 yes Figure 2 Middle BB section view.

[0098] Figure 5 yes Figure 3 Enlarged view of point C in the middle.

[0099] Figure 6 This is a schematic diagram of the structure of the built-in carbon dioxide cylinder and the weighing module.

[0100] Figure 7 It is a schematic diagram of the weighing module structure.

[0101] Figure 8 This is a structural diagram of the weighing module from another angle.

[0102] Fig. 9 This is the main view of the weighing module.

[0103] Fig.10 yes Fig. 9 Middle DD section view.

[0104] Fig.11 It is the flow chart of gas supply internal and external mode control.

[0105] Fig.12 It is the flow chart of gas supply mixing mode control.

[0106] Fig.13 This is a flow chart of judging the deficiency and exhaustion of carbon dioxide by comparing water pressure and air pressure.

[0107] Fig.14 It is a flow chart of pH value detection method.

[0108] Reference numerals:

[0109] Left base-1, card slot-101;

[0110] Right side base-2, protrusion-201, sleeve-202, upper sleeve-2021, lower sleeve-2022;

[0111] External air inlet solenoid valve-301, internal air inlet solenoid valve-302, water inlet solenoid valve-303, liquid outlet solenoid valve 1-304, liquid outlet solenoid valve 2-305, sewage discharge solenoid valve-306;

[0112] Gas pressure sensor 1-401, gas pressure sensor 2-402, water flow sensor-403, water pressure sensor-404, mixed liquid pressure sensor-405, PH sensor-406, effective chlorine detector-407;

[0113] External air inlet connector-501, internal air inlet connector-502, air outlet connector-503, water inlet connector-504, water outlet connector-505, liquid outlet connector 1-506, liquid outlet connector 2-507, sewage outlet connector-508, mixed liquid connector-509;

[0114] External air inlet channel 601, internal air inlet channel 602, air outlet channel 603, fluid through hole 1 6031, fluid through hole 2 6032, flow control groove 6033, flow block 6034, water channel 604, liquid outlet channel 1 605, liquid outlet channel 2 606, sewage channel 607;

[0115] Gas flow regulating valve-7, motor-701, flow control column-702, internal thread hole-7021, flow control plug-7022, limiting boss-7023, column-7024;

[0116] Flow control plate-8;

[0117] External air intake check valve-901, internal air intake check valve-902;

[0118] Built-in carbon dioxide cylinder-10, pressure reducing valve-1001;

[0119] Weighing module-11, bottom plate-1101, sensor placement slot-1102, gas cylinder enclosure-1103, weighing sensor-1104, gas cylinder support plate-1105, external threaded column-1106;

[0120] Gas cylinder strap-1201, gas cylinder bracket-1202. DETAILED DESCRIPTION

[0121] The present invention is described below in conjunction with the accompanying drawings and embodiments.

[0122] As attached Figure 1-5As shown, a liquid inlet and outlet measurement control device is provided, including a base, in which a water channel 604, a liquid outlet channel, and at least one of a gas channel are opened. In this embodiment, the water channel 604, the liquid outlet channel, and the gas channel are all integrated in the base, and the base includes a left base 1 and a right base 2. The right end surface of the left base 1 is provided with one of a slot and a protrusion. In this embodiment, a slot 101 is provided on the right end surface of the left base 1, and the other of a slot and a protrusion is provided on the left end surface of the right base 2. In this embodiment, a protrusion 201 is provided on the left end surface of the right base 2. The slot 101 and the protrusion 201 are plug-in matched. The left base 1 and the right base 2 are connected by fasteners after the slot 101 and the protrusion 201 are plug-in matched. In this embodiment, the left base 1 and the right base 2 are fixed by bolts after being plugged in; the base is divided into two pieces, which is convenient for opening and processing of the internal channel of the base and assembly of devices.

[0123] The water channel 604 includes a water inlet channel and a water outlet channel. The water inlet channel is opened on the left base 1 and horizontally penetrates the left base 1. The water outlet channel is opened on the right base 2 and horizontally penetrates the right base 2. The left base 1 is connected with the right base 2 to connect the water inlet channel and the water outlet channel. A sealing ring is provided at the connection between the water inlet channel and the water outlet channel. The left side of the water inlet channel is connected to the water inlet joint 504, and the right side of the water outlet channel is connected to the water outlet joint 505.

[0124] The liquid outlet channel includes a mixing liquid channel, a liquid outlet channel 1 605, a liquid outlet channel 2 606 and a sewage channel 607. The liquid outlet channel 1 605, the liquid outlet channel 2 606 and the sewage channel 607 are arranged on the left base 1. The liquid outlet channel 1 605, the liquid outlet channel 2 606 and the sewage channel 607 are arranged at intervals along the longitudinal direction of the left base 1 and all pass through the left base 1 horizontally. The mixing liquid channel is arranged on the right base 2. The joint between the left base 1 and the right base 2 is provided with a liquid outlet connection. The liquid outlet communication channel is provided with a sealing ring, the right sides of the liquid outlet channel 1 605, the liquid outlet channel 2 606 and the sewage channel 607 are all connected to the liquid outlet communication channel, the left side of the mixed liquid channel is connected to the liquid outlet communication channel, the left side of the liquid outlet channel 1 605 is connected to the liquid outlet joint 1 506, the left side of the liquid outlet channel 2 606 is connected to the liquid outlet joint 2 507, the left side of the sewage channel 607 is connected to the sewage joint 508, and the right side of the mixed liquid channel is connected to the mixed liquid joint 509;

[0125] In this embodiment, a liquid outlet communication channel 1 in the shape of a groove is provided on the right end surface of the left base 1, and liquid outlet channel 1 605, liquid outlet channel 2 606, and sewage channel 607 are all connected to liquid outlet communication channel 1. A liquid outlet communication channel 2 in the shape of a groove is provided on the left end surface of the right base 2, and the mixing liquid channel is connected to liquid outlet communication channel 2. After the left base 1 and the right base 2 are connected, liquid outlet communication channel 1 and liquid outlet communication channel 2 form a complete liquid outlet communication channel.

[0126] The gas channel includes an air inlet channel and an air outlet channel 603, the air inlet channel includes an external air inlet channel 601 and an internal air inlet channel 602, the external air inlet channel 601 is opened on the left base 1 and horizontally penetrates the left base 1, the internal air inlet channel 602 is opened on the right base 2 and horizontally penetrates the right base 2, the air outlet channel 603 is opened on the right base 2 and horizontally penetrates the right base 2, an air inlet communication channel is provided at the joint of the left base 1 and the right base 2, a sealing ring is provided at the air inlet communication channel, the right side of the external air inlet channel 601, the left side of the internal air inlet channel 602, and the left side of the air outlet channel 603 are respectively connected to the air inlet communication channel, the left side of the external air inlet channel 601 is connected to the external air inlet joint 501, the right side of the internal air inlet channel 602 is connected to the internal air inlet joint 502, the external carbon dioxide gas cylinder is connected to the external air inlet joint via a pressure reducing valve, and the internal carbon dioxide gas cylinder is connected to the internal air inlet joint via a pressure reducing valve;

[0127] In this embodiment, a groove-shaped air intake connecting channel 1 is provided on the right end surface of the left base 1, and an external air intake channel 601 is connected to the air intake connecting channel 1. A groove-shaped air intake connecting channel 2 is provided on the left end surface of the right base 2, and an internal air intake channel 602 and an air outlet channel 603 are respectively connected to the air intake connecting channel 2. After the left base 1 and the right base 2 are connected, the air intake connecting channel 1 and the air intake connecting channel 2 form a complete air intake connecting channel.

[0128] In this embodiment, an external air inlet check valve 901 is installed in the external air inlet joint 501, and an internal air inlet check valve 902 is installed in the internal air inlet joint 502; when the built-in carbon dioxide gas cylinder is working, the gas is prevented from leaking from the external air inlet joint, and when the external carbon dioxide gas cylinder is working, the gas is prevented from leaking from the internal air inlet joint to cause gas loss and waste.

[0129] In this embodiment, a water inlet solenoid valve 303 is installed on the water inlet channel, a liquid outlet solenoid valve 1 304 is installed on the liquid outlet channel 1 605, a liquid outlet solenoid valve 2 305 is installed on the liquid outlet channel 2 606, a sewage discharge solenoid valve 306 is installed on the sewage discharge channel 607, an external air intake solenoid valve 301 is installed on the external air intake channel 601, and an internal air intake solenoid valve 302 is installed on the internal air intake channel 602. The water inlet solenoid valve 303, the liquid outlet solenoid valve 1 304, the liquid outlet solenoid valve 2 305, the sewage discharge solenoid valve 306, the external air intake solenoid valve 301, and the internal air intake solenoid valve 302 are respectively connected to the controller; the pipeline and the solenoid valve are integrated on the base, and the fluid in the channel is controlled by the solenoid valve. The overall modularization has high integration, small space occupation, and convenient assembly and maintenance; in this embodiment, a solenoid valve is used, and pneumatic valves, hydraulic valves, etc. can also be selected according to actual needs.

[0130] In this embodiment, a flow control plate 8 is fixed inside the left side of the outlet channel, and a pressure regulating hole is opened on the flow control plate 8, which penetrates the inlet channel and the outlet channel; the gas in the outer inlet channel 601 and the inner inlet channel 602 enters the outlet channel 603 through the pressure regulating hole;

[0131] The gas channel is provided with a gas pressure sensor, which includes a gas pressure sensor 1 401 and a gas pressure sensor 2 402. The outer air inlet channel 601 and the inner air inlet channel 602 detect the air inlet pressure through the gas pressure sensor 1 401. The gas outlet channel 603 is provided with a gas pressure sensor 2 402. The gas outlet channel 603 is provided with a gas flow regulating valve 7 at the rear side of the gas pressure sensor 2 402. The gas pressure sensor 1 and the gas pressure sensor 2 are connected to the controller respectively.

[0132] By setting a flow control plate and opening a pressure regulating hole, a pressure difference can be formed between the air inlet channel and the air outlet channel. Gas pressure sensor 1 and gas pressure sensor 2 upload the detected pressure values ​​in the tube to the controller. The controller calculates the flow rate of carbon dioxide according to the pressure difference value. The controller matches the calculated flow value with the set flow value, and controls the flow rate of gas in the air outlet channel through the gas flow regulating valve to ensure the appropriate flow rate and flow stability of carbon dioxide entering the hypochlorous acid mixing control module, thereby forming a full closed-loop regulation and control of the carbon dioxide gas flow rate.

[0133] The gas flow regulating valve 7 includes a sleeve 202, a driving mechanism and a flow control column 702. An opening is provided on the gas outlet channel 603. The sleeve 202 is fixed on the right base 2. The sleeve 202 is connected to the gas outlet channel 603 through the opening. In this embodiment, the sleeve 202 is vertically fixed on the right base 2. The axis of the sleeve 202 is perpendicular to the axis of the gas outlet channel 603. The flow control column 702 is arranged in the sleeve 202. The flow control column 702 is driven by the driving mechanism to slide along the axial direction of the sleeve 202 to extend into or extend out of the gas outlet channel. The setting of the gas flow regulating valve can adjust the flow in real time to ensure the stability and accuracy of the gas flow entering the hypochlorous acid mixing control module.

[0134] The flow control column 702 includes a column 7024 and a flow control plug 7022 fixed at the bottom of the column 7024. A flow block 6034 is provided in the air outlet channel 603. The flow block 6034 is arranged at the opening to divide the air outlet channel 603 into a front section and a rear section. A flow control groove 6033 matching the shape of the flow control plug 7022 is provided on the flow block 6034. The shapes of the flow control plug 7022 and the flow control groove 6033 are both inverted cone shape or inverted cone shape. The flow control plug 7022 matches the size of the flow control groove 6033. The flow control plug 7022 is inserted into the flow control groove 6033. The front side wall of the flow control groove 6033 is connected with the front section of the tube to form a fluid through hole 1 6031, and the connection between the upper surface of the rear side wall of the flow control groove 6033 and the lower end of the sleeve is connected with the rear section of the tube to form a fluid through hole 2 6032. The fluid in the front section of the tube flows through the fluid through hole 1 6031, the flow control groove 6033, and the fluid through hole 2 6032 in sequence before entering the rear section of the tube; the cooperation between the flow blocking block 6034 and the flow control column 702 can accurately adjust the flow accuracy according to the position of the flow control column 702 in the flow control groove 6033, and when the flow control plug 7022 is fully inserted into the flow control groove 6033, the fluid passage can be disconnected.

[0135] The driving mechanism adopts a motor 701, which is connected to a controller. An internal threaded hole 7021 is axially provided at the upper end of the column 7024. An external thread is provided on the motor shaft of the motor 701. The motor shaft of the motor 701 extends into the internal threaded hole 7021 and is threadedly connected to the column 7024. The rotation of the motor shaft drives the flow control column to move axially.

[0136] The shaft sleeve 202 includes an upper shaft sleeve 2021 and a lower shaft sleeve 2022 which are coaxially arranged. The inner diameter of the upper shaft sleeve 2021 is larger than the inner diameter of the lower shaft sleeve 2022. A horizontal limit end surface is formed between the upper shaft sleeve 2021 and the lower shaft sleeve 2022.

[0137] The upper end of the column 7024 extends radially outward to form a limiting boss 7023, the outer diameter of the limiting boss 7023 matches the inner diameter of the upper sleeve 2021, the outer diameter of the column 7024 matches the inner diameter of the lower sleeve 2022, and the lower surface of the limiting boss 7023 matches the horizontal limiting end surface;

[0138] The outer diameter of the large diameter end of the flow control plug 7022 is smaller than the outer diameter of the lower surface of the column 7024, and a lower limit surface is formed between the large diameter end of the flow control plug 7022 and the lower surface of the column 7024. The flow control plug 7022 is inserted into the flow control groove 6033, and the lower limit surface is against the upper surface of the flow blocking block 6034;

[0139] A sealing groove is provided at the lower end of the column 7024 along the circumferential direction, and a sealing ring is provided in the sealing groove to achieve sealing between the flow control column and the inner wall of the shaft sleeve.

[0140] When the flow control plug 7022 is fully inserted into the flow control groove 6033 , the lower limit surface abuts against the upper surface of the flow blocking block, thereby blocking the connection between the flow control groove 6033 and the second fluid through hole 6032 .

[0141] The left side of the outer wall of the limiting boss 7023 is provided with a left vertical surface, and the right side is provided with a right vertical surface. The left side of the inner wall of the upper sleeve 2021 is provided with a left guide surface, and the right side is provided with a right guide surface. The left vertical surface on the outer wall of the limiting boss 7023 is in contact with the left guide surface on the inner wall of the upper sleeve 2021, and the right vertical surface is in contact with the right guide surface on the inner wall of the upper sleeve 2021. The flow control column 702 slides along the left guide surface and the right guide surface on the inner wall of the upper sleeve 2021; the sliding direction of the flow control column is limited, and it can only move along the axial direction of the sleeve 202 but cannot rotate circumferentially, thereby ensuring the accuracy of the flow control column in adjusting the flow.

[0142] A water flow sensor 403 and a water pressure sensor 404 are also installed on the water outlet channel, and the water flow sensor 403 and the water pressure sensor 404 are respectively connected to the controller; the setting of the water flow sensor 403 and the water pressure sensor 404 uploads the detected data to the controller, and the controller adjusts the water inlet flow according to the required target concentration to ensure the accuracy of the prepared disinfectant water concentration.

[0143] A pH sensor 406 and an effective chlorine detector 407 are installed on the mixing channel. The pH sensor 406 and the effective chlorine detector 407 are connected to the controller respectively. The pH sensor is used to measure the pH value of the hypochlorous acid disinfectant prepared by mixing water, hypochlorous acid stock solution and carbon dioxide. The effective chlorine detector is used to measure the effective chlorine content in the hypochlorous acid disinfectant prepared by mixing water, hypochlorous acid stock solution and carbon dioxide.

[0144] In this embodiment, a second liquid mixing channel is further opened in the right base. The left side of the second liquid mixing channel is connected to the liquid outlet connecting channel, and the right side is closed and does not penetrate the right base. A liquid mixing pressure sensor 405 is installed on the second liquid mixing channel to detect the pressure of the disinfectant. The liquid mixing pressure sensor 405 is connected to the controller.

[0145] In this embodiment, the controller may be a controller developed based on an MCU or a PLC controller.

[0146] In this embodiment, the hypochlorous acid mixing control module is used to react the raw liquid, carbon dioxide and water to form a hypochlorous acid disinfectant. The hypochlorous acid mixing control module is a prior art and will not be described in detail here.

[0147] In this embodiment, the stock liquid is transported through a stock liquid transport module, which includes a stock liquid pipeline, a stock liquid pump, and a stock liquid solenoid valve 5. The stock liquid pump and the stock liquid solenoid valve are respectively controlled by a controller. The stock liquid pump sucks the stock liquid in the stock liquid pipeline into the hypochlorous acid mixing control module, and the stock liquid solenoid valve 5 controls the on-off of the stock liquid pipeline.

[0148] In this embodiment, the inlet and outlet liquid measurement control device, the hypochlorous acid mixing control module, and the raw liquid delivery module form a hypochlorous acid disinfectant generator, and the hypochlorous acid disinfectant generator is connected to the controller. The controller controls the operation of the valves or pumps of each module to achieve the preparation of hypochlorous acid disinfectant; this embodiment is provided with a touch screen, which is connected to the controller. The staff clicks the button for producing disinfectant on the touch screen to enable each module to work and prepare disinfectant.

[0149] The hypochlorous acid disinfectant generator is then connected to a liquid storage barrel or a filling machine, and the hypochlorous acid disinfectant prepared by the hypochlorous acid disinfectant generator enters the liquid storage barrel or the filling machine, and liquid level sensors are installed in the liquid storage barrel and the filling machine.

[0150] When the inlet and outlet liquid measurement control device is used:

[0151] 1. The water inlet joint 504 is connected to the water source, the liquid outlet joint 1 506 is connected to the liquid storage barrel 1, the liquid outlet joint 2 507 is connected to the liquid storage barrel 2, the sewage joint 508 is connected to the liquid storage barrel 3, the external air inlet joint 501 is connected to the external carbon dioxide gas cylinder, the internal air inlet joint 502 is connected to the built-in carbon dioxide gas cylinder, the air outlet joint 507 is connected to the air inlet of the hypochlorous acid mixing control module, the water outlet joint 505 is connected to the water inlet of the hypochlorous acid mixing control module, and the mixed liquid joint 509 is connected to the mixed liquid outlet of the hypochlorous acid mixing control module. The stock liquid required for preparing the disinfectant is transported to the liquid inlet of the hypochlorous acid mixing control module through the stock liquid barrel and the stock liquid transport module;

[0152] 2. The controller selects a production mode according to the set target concentration. When production mode 1 is selected, the controller controls the liquid outlet solenoid valve 1 304 to open. At this time, the liquid outlet solenoid valve 2 305 and the sewage discharge solenoid valve 306 are closed. Water enters the water inlet of the hypochlorous acid mixing control module through the water channel 604, the raw liquid directly enters the liquid inlet of the hypochlorous acid mixing control module, and the carbon dioxide enters the air inlet of the hypochlorous acid mixing control module through the gas channel. After the raw liquid, water and carbon dioxide enter the hypochlorous acid mixing control module, they react to generate the hypochlorous acid concentration required for production mode 1, enter the mixed liquid channel from the mixed liquid outlet of the hypochlorous acid mixing control module, and then enter the liquid storage tank 1 from the liquid outlet channel 1 605;

[0153] 3. When production mode 2 is selected, the controller controls the second liquid outlet solenoid valve 305 to open, the first liquid outlet solenoid valve 304 and the sewage discharge solenoid valve 306 to close, and the raw liquid, water and carbon dioxide enter the hypochlorous acid mixing control module and react to generate the hypochlorous acid concentration required for production mode 2, and enter the mixed liquid channel from the mixed liquid outlet of the hypochlorous acid mixing control module, and then enter the second liquid storage tank from the second liquid outlet channel 606;

[0154] 4. When production mode 3 is selected, the controller controls the sewage solenoid valve 306 to open, and the liquid outlet solenoid valve 1 304 and the liquid outlet solenoid valve 2 305 to close. The raw liquid, water and carbon dioxide enter the hypochlorous acid mixing control module and react to generate the hypochlorous acid concentration required for production mode 3. The raw liquid enters the mixed liquid channel from the mixed liquid outlet of the hypochlorous acid mixing control module, and then enters the liquid storage tank 3 from the sewage channel 607.

[0155] As attached Figure 11-12 As shown, a gas supply control method can adopt one of the internal gas supply mode, the external gas supply mode and the mixed gas supply mode to supply gas;

[0156] The gas supply method in internal gas supply mode is:

[0157] Step S1.1: The controller controls the inner air inlet solenoid valve 302 to open, the outer air inlet solenoid valve 301 to close, the built-in carbon dioxide gas cylinder supplies gas, and the gas in the built-in carbon dioxide gas cylinder enters the air inlet end of the gas-liquid mixing control module through the inner air inlet connector 502, the inner air inlet channel 602, the air outlet channel 603, and the air outlet connector 503 in sequence, and continues to step S1.2;

[0158] Step S1.2: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S1.3; if not, jump to step S1.1;

[0159] Step S1.3: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S1.5, if not, jump to step S1.4;

[0160] Step S1.4: an alarm is triggered to indicate that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and the process jumps to step S1.1, where the built-in carbon dioxide cylinder continues to supply gas;

[0161] Step S1.5: an alarm is sounded to indicate that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and the process continues to step S1.6;

[0162] Step S1.6: Automatically stop production.

[0163] The gas supply methods in external gas supply mode are:

[0164] Step S2.1: The controller controls the external air inlet solenoid valve 301 to open, the internal air inlet solenoid valve 302 to close, and the external carbon dioxide gas cylinder supplies gas. The gas in the external carbon dioxide gas cylinder enters the air inlet end of the gas-liquid mixing control module through the external air inlet connector 501, the external air inlet channel 601, the air outlet channel 603, and the air outlet connector 503 in sequence, and then continues to step S2.2;

[0165] Step S2.2: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S2.3; if not, jump to step S2.1;

[0166] Step S2.3: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S2.5, if not, jump to step S2.4;

[0167] Step S2.4: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder is insufficient, and the process jumps to step S2.1, where the external carbon dioxide cylinder continues to supply gas;

[0168] Step S2.5: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and the process continues to step S2.6;

[0169] Step S2.6: Automatically stop production.

[0170] The mixed gas supply mode uses one of the gas supply methods 1 and 2 for gas supply. The gas supply method 1 is:

[0171] Step S3.1: The controller controls the inner air inlet solenoid valve 302 to close, the outer air inlet solenoid valve 301 to open, and the external carbon dioxide gas cylinder supplies gas. The gas in the external carbon dioxide gas cylinder sequentially enters the air inlet end of the gas-liquid mixing control module through the external air inlet connector 501, the external air inlet channel 601, the air outlet channel 603, and the air outlet connector 503, and then continues to step S3.2;

[0172] Step S3.2: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.3; if not, jump to step S3.12;

[0173] Step S3.3: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if so, jump to step S3.5, if not, jump to step S3.4;

[0174] Step S3.4: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder is insufficient, and the process jumps to step S3.12;

[0175] Step S3.5: Alarm prompts that the carbon dioxide in the external carbon dioxide cylinder is exhausted; in this step, when the carbon dioxide in the external carbon dioxide cylinder is exhausted, the system will automatically switch to the internal carbon dioxide cylinder for gas supply, and continue to step S3.6. During the process of the internal carbon dioxide cylinder supplying gas, the user can replace the external carbon dioxide cylinder in time according to the alarm prompt;

[0176] Step S3.6: The controller controls the external air inlet solenoid valve 301 to close, the internal air inlet solenoid valve 302 to open, and the internal carbon dioxide gas cylinder supplies gas. The gas in the internal carbon dioxide gas cylinder sequentially enters the air inlet end of the gas-liquid mixing control module through the internal air inlet connector 502, the internal air inlet channel 602, the air outlet channel 603, and the air outlet connector 503, and then continues to step S3.7;

[0177] Step S3.7: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.8; if not, jump to step S3.6;

[0178] Step S3.8: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S3.10, if not, jump to step S3.9;

[0179] Step S3.9: an alarm is triggered to indicate that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and the process jumps to step S3.6, where the built-in carbon dioxide cylinder continues to supply gas;

[0180] Step S3.10: an alarm is triggered to indicate that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and the process continues to step S3.16;

[0181] Step S3.12: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.13; if not, jump to step S3.1;

[0182] Step S3.13: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S3.15, if not, jump to step S3.14;

[0183] Step S3.14: an alarm is triggered to indicate that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and the process goes to step S3.1, where the external carbon dioxide cylinder continues to supply gas;

[0184] Step S3.15: an alarm is triggered to indicate that the carbon dioxide in the internal carbon dioxide cylinder has been exhausted, and the process jumps to step S3.1, where the external carbon dioxide cylinder continues to supply gas;

[0185] Step S3.16: The controller controls the inner air intake solenoid valve 302 to close, the outer air intake solenoid valve 301 to open, and the external carbon dioxide cylinder to supply gas;

[0186] Step S3.17: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.18; if not, jump to step S3.16;

[0187] Step S3.18: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S3.20, if not, jump to step S3.19;

[0188] Step S3.19: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder is insufficient, and the process jumps to step S3.16, where the external carbon dioxide cylinder continues to supply gas;

[0189] Step S3.20: Alarm to indicate that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and jump to step S3.6, and the internal carbon dioxide cylinder continues to supply gas; cyclic switching, when the internal gas supply mode and the external gas supply mode are continuously switched for more than N seconds, jump to step S3.11; in this embodiment, N is set to 8 seconds, but it is not limited thereto, and can be set according to actual conditions;

[0190] Step S3.11: Automatically stop production.

[0191] Gas supply method 2 is:

[0192] Step S4.1: The controller controls the external air inlet solenoid valve 301 to close, the internal air inlet solenoid valve 302 to open, and the internal carbon dioxide gas cylinder supplies gas. The gas in the internal carbon dioxide gas cylinder sequentially enters the air inlet end of the gas-liquid mixing control module through the internal air inlet connector 502, the internal air inlet channel 602, the air outlet channel 603, and the air outlet connector 503, and then continues to step S4.2;

[0193] Step S4.2: Determine whether the internal carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S4.3; if not, jump to step S4.12;

[0194] Step S4.3: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S4.5, if not, jump to step S4.4;

[0195] Step S4.4: an alarm is triggered to indicate that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and the process jumps to step S4.12;

[0196] Step S4.5: Alarm prompts that the carbon dioxide in the built-in carbon dioxide cylinder is exhausted; in this step, the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, and the system automatically switches to the external carbon dioxide cylinder for gas supply, and continues to step S4.6. During the process of the external carbon dioxide cylinder supplying gas, the user can replace the built-in carbon dioxide cylinder in time according to the alarm prompt;

[0197] Step S4.6: The controller controls the inner air inlet solenoid valve 302 to close, the outer air inlet solenoid valve 301 to open, and the external carbon dioxide gas cylinder supplies gas. The gas in the external carbon dioxide gas cylinder sequentially enters the air inlet end of the gas-liquid mixing control module through the external air inlet connector 501, the external air inlet channel 601, the air outlet channel 603, and the air outlet connector 503, and then continues to step S4.7;

[0198] Step S4.7: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide, if yes, jump to step S4.8, if not, jump to step S4.6;

[0199] Step S4.8: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S4.10, if not, jump to step S4.9;

[0200] Step S4.9: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder is insufficient, and the process jumps to step S4.6, where the external carbon dioxide cylinder continues to supply gas;

[0201] Step S4.10: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and the process continues to step S4.16;

[0202] Step S4.12: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide, if yes, jump to step S4.13, if not, jump to step S4.1;

[0203] Step S4.13: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S4.15, if not, jump to step S4.14;

[0204] Step S4.14: An alarm is triggered to indicate that there is insufficient carbon dioxide in the external carbon dioxide cylinder, and the process goes to step S4.1;

[0205] Step S4.15: an alarm is triggered to indicate that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and the process jumps to step S4.1;

[0206] Step S4.16: The controller controls the external air intake solenoid valve 301 to close, the internal air intake solenoid valve 302 to open, and the built-in carbon dioxide cylinder to supply gas;

[0207] Step S4.17: Determine whether the internal carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S4.18; if not, jump to step S4.16;

[0208] Step S4.18: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S4.20, if not, jump to step S4.19;

[0209] Step S4.19: an alarm is triggered to indicate that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and the process jumps to step S4.16, where the built-in carbon dioxide cylinder continues to supply gas;

[0210] Step S4.20: Alarm to remind that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and jump to step S4.6; cyclic switching, when the internal gas supply mode and the external gas supply mode are continuously switched for more than N seconds, jump to step S4.11; in this embodiment, N is set to 8 seconds, but it is not limited thereto and can be set according to actual conditions;

[0211] Step S4.11: Automatically stop production.

[0212] You can flexibly choose to use the built-in gas supply mode and the external gas supply mode. When the gas demand is large, select the mixed gas supply mode to realize the cyclic switching of the gas supply source, which can ensure that the carbon dioxide gas supply requirements are met and the preparation effect of the disinfectant is guaranteed, while ensuring that the user can replace the gas cylinder in time.

[0213] In this embodiment, when the internal gas supply mode is used, the carbon dioxide in the external carbon dioxide cylinder is also detected. If the carbon dioxide gas in the external carbon dioxide cylinder is insufficient or exhausted, the user can replace it with a new cylinder in time. When the external gas supply mode is used, the carbon dioxide in the built-in carbon dioxide cylinder is also detected. If the carbon dioxide gas in the built-in carbon dioxide cylinder is insufficient or exhausted, the user can replace it with a new cylinder in time.

[0214] In this embodiment, at least one of a pH value detection method, a weighing method, a gas pressure difference method, and a water pressure and air pressure comparison method is used to determine whether the carbon dioxide in the external carbon dioxide cylinder and the internal carbon dioxide cylinder is insufficient or exhausted.

[0215] (1) Use pH value detection method to make judgment (see attached Fig.14 shown)

[0216] Step S6.1: Initialize the counter to zero;

[0217] Step S6.2: Open the water inlet solenoid valve and the sewage solenoid valve, close the liquid outlet solenoid valve 1, the liquid outlet solenoid valve 2, and the air inlet solenoid valve (the purpose of this step is to discharge the disinfectant remaining in the hypochlorous acid mixing control module from the sewage channel. There is only water in the hypochlorous acid mixing control module, and the original liquid for preparing the disinfectant is not delivered to the hypochlorous acid mixing control module at this time), close or reduce the opening of the gas flow regulating valve (in this embodiment, the opening of the gas flow regulating valve is 0%), delay 5S, and close the water inlet solenoid valve and the sewage solenoid valve;

[0218] Step S6.3: Determine whether the pH is between C3 and C4 (because water is retained in the mixing channel at this time, and the pH value of water is detected by the pH sensor). If yes, jump to step S6.4; if not, jump to step S6.16 (C3 is less than C4, and the value range of C3 is between 5.7 and 6.5. In this embodiment, C3 takes a value of 6 and C4 takes a value of 8.5);

[0219] Step S6.4: Determine whether it is the stage of producing disinfectant (first, the "Produce Disinfectant" button is clicked on the touch screen, and second, the liquid level sensor on the liquid storage barrel and the filling machine detects that there is no liquid or the liquid is insufficient. Both methods can enter the stage of producing disinfectant, and the controller controls the hypochlorous acid disinfectant generator to start preparing hypochlorous acid disinfectant). If yes, jump to step S5, if not, jump to S21;

[0220] Step S6.5: Open the air inlet solenoid valve (whether the internal air inlet solenoid valve or the external air inlet solenoid valve is opened depends on whether the internal carbon dioxide gas cylinder or the external carbon dioxide gas cylinder is used), the water inlet solenoid valve and the liquid outlet solenoid valve (liquid outlet solenoid valve 1 or liquid outlet solenoid valve 2), the gas flow regulating valve is opened by 50%, the delay is 2S, and the process continues to jump to step S6.6 (the opening of the gas flow regulating valve in this step is not limited to 50%, and the opening can be set to 30%~70%, and the delay time is not limited to 2S, which can be set according to actual use needs);

[0221] Step S6.6: Determine whether it is the stage of producing disinfectant, if yes, jump to step S6.7, if not, jump to step S6.22;

[0222] Step S6.7: detection counters Calc1 (Calc1 counts the number of times the pH value is less than C1), Calc2 (Calc2 counts the number of times the pH value is greater than C2), and Calc3 (Calc3 counts the number of times the gas flow and air pressure are abnormal, and the pressure difference value is calculated according to the pressure measured by the gas pressure sensor 1 and the gas pressure sensor 2. The controller calculates the flow of carbon dioxide according to the pressure difference value, sets the carbon dioxide flow threshold and the air pressure threshold. When the carbon dioxide flow value and the air pressure value are lower than the set value, the Calc3 count is cleared, and the process continues to jump to step S8;

[0223] Step S6.8: Sample the pH value N times and take the average value, and then jump to step S6.9 (in this embodiment, N is 10, but it is not limited thereto, and the specific number of sampling times can be set as needed);

[0224] Step S6.9: Determine whether the pH value is less than C1 (the value range of C1 is between 4.5 and 5.5, and the value of C1 in this embodiment is 5). If yes, jump to step S6.23; if not, jump to step S6.10;

[0225] Step S6.10: Check that the counter Calc1 value is cleared, and then jump to step S6.11;

[0226] Step S6.11: Determine whether the pH value is greater than C2 (the value range of C2 is between 5.0 and 6.5, C2 is greater than C1, and the value of C2 in this embodiment is 5.7). If yes, jump to step S6.12; if not, jump to step S6.26;

[0227] Step S6.12: Increase the opening of the gas flow regulating valve, detect that the counter Calc2 count value is incremented by 1, and continue to jump to step S6.13;

[0228] Step S6.13: Determine whether the detection counter Calc2 is greater than 5 (the number of consecutive counts of Calc2 is greater than 5, not limited to 5 times, and the specific number is set according to actual use needs). If yes, jump to step S6.14, if not, jump to step S6.8;

[0229] Step S6.14: Determine whether the pH value is greater than C3 (the value range of C3 is between 5.7 and 6.5, C3 is greater than C2, and C3 is 6 in this embodiment). If yes, jump to step S6.15; if not, jump to step S6.33;

[0230] Step S6.15: Determine that the carbon dioxide in the carbon dioxide cylinder is exhausted, automatically stop production and alarm, and jump to step S6.4 (the staff can replace the carbon dioxide cylinder according to the alarm prompt);

[0231] Step S6.16: Determine whether the count value of the initialization counter is greater than 3 (the initialization counter counts the number of PH sensor detection times, not limited to 3 times, and the specific number is set according to actual use needs). If yes, jump to step S6.17, if not, jump to step S6.19;

[0232] Step S6.17: Determine that the water quality is abnormal or the PH sensor initialization fails or the PH sensor is abnormal, prohibit production, start timer T1, stop timing after 1 hour, and continue to jump to step S6.18 (T1 timing time is not limited to 1 hour, it can be set according to actual use needs);

[0233] Step S6.18: Determine whether the timer T1 waits for 1 hour or manually restarts the device, if yes, jump to step S6.1, if not, jump to step S6.20;

[0234] Step S6.19: Initialize the counter and increment the count value by 1, and then jump to step S6.2;

[0235] Step S6.20: Delay 1S, and continue to jump to step S6.18 (the delay time is not limited to this and can be set according to actual needs);

[0236] Step S6.21: Delay 500MS, and continue to jump to step S6.4 (the delay time is not limited to this and can be set according to actual needs);

[0237] Step S6.22: Close all valves, the gas flow regulating valve opening is 0, and jump to step S6.4;

[0238] Step S6.23: Determine whether the detection counter Calc1 is greater than 3 (the number of consecutive counts of Calc1 is greater than 3, not limited to 3 times, and is set according to actual use needs). If yes, jump to step S6.24, if not, jump to step S6.25;

[0239] Step S6.24: Automatically stop production and give an alarm (determine that there is a problem with the PH sensor), and jump to step S6.1;

[0240] Step S6.25: The gas flow regulating valve is opened at 20%, the detection counter Calc1 count value is incremented by 1, and the process continues to jump to step S6.8 (the gas flow regulating valve opening is not limited to 20%, it can be set according to actual needs);

[0241] Step S6.26: Automatically control the opening of the gas flow regulating valve according to the pH value, so that the pH value approaches 5.1, and continue to jump to step S6.27 (jumping to this step indicates that there is sufficient carbon dioxide);

[0242] Step S6.27: Determine whether the carbon dioxide gas flow rate = 1~10L / MIN, and the carbon dioxide pressure ≥ water pressure. If yes, jump to step S6.28, if not, jump to step S6.30;

[0243] Step S6.28: the count value of the detection counter Calc1 is cleared, and the process continues to step S6.29;

[0244] Step S6.29: Determine whether it is a manual shutdown state, if yes, jump to step S6.21, if not, jump to step S6.7;

[0245] Step S6.30: Determine whether the detection counter Calc3 is greater than 5 (the number of consecutive counts of Calc3 is greater than 5, not limited to 5 times, and is set according to actual use needs). If yes, jump to step S6.31, if not, jump to step S6.32;

[0246] Step S6.31: determine that the gas pressure sensor 1 detects an abnormality, automatically stop production and alarm, and jump to step S6.21;

[0247] Step S6.32: the count value of the detection counter Calc3 is incremented by 1, and the process continues to step S6.8;

[0248] Step S6.33: Determine if carbon dioxide is insufficient and give an alarm, then jump to step S6.8.

[0249] (2) Determination by weighing method

[0250] As attached Figure 6-10 As shown, a weighing module 11 is provided, a weight threshold of the weighing module 11 is set, the internal carbon dioxide gas cylinder 10 and the external carbon dioxide gas cylinder are weighed by the weighing module 11, and the total weight of the internal carbon dioxide gas cylinder and the external carbon dioxide gas cylinder is measured and compared with the set weight threshold to determine whether the carbon dioxide is insufficient or exhausted;

[0251] In this embodiment, weighing modules 11 are respectively provided below the built-in carbon dioxide gas cylinder 10 and the external carbon dioxide gas cylinder, and the weighing module 11 comprises a bottom plate 1101, a weighing sensor 1104 and a gas cylinder enclosure 1103, the gas cylinder enclosure 1103 surrounds the bottom plate 1101 in a circumferential direction, the lower end of the gas cylinder enclosure 1103 is fixedly connected to the bottom plate 1101 to form a gas cylinder limiting groove, a weighing sensor 1104 is provided in the gas cylinder limiting groove, the built-in carbon dioxide gas cylinder 10 and the external carbon dioxide gas cylinder are placed on the weighing sensor 1104, the bottom circumferential direction of the built-in carbon dioxide gas cylinder 10 and the external carbon dioxide gas cylinder is limited by the gas cylinder enclosure 1103, the weighing sensor is connected to the controller, and the weighing sensor detects the weight of the gas cylinder in real time and feeds back to the controller.

[0252] The bottom plate 1101 is provided with a sensor placement groove 1102 with an opening facing upward, the weighing sensor 1104 is placed in the sensor placement groove 1102, the weighing sensor 1104 is provided with a gas cylinder support plate 1105, the built-in carbon dioxide gas cylinder 10 and the external carbon dioxide gas cylinder are placed on the gas cylinder support plate 1105; this structural setting further ensures the stability of the gas cylinder support, while reducing the direct contact between the gas cylinder and the weighing sensor 1104, reducing the wear on the weighing sensor 1104.

[0253] In this embodiment, the weighing sensor 1104 adopts a spoke-type weighing sensor, but is not limited thereto. Other types of sensors may also be used as long as they can achieve the weighing of the carbon dioxide cylinder.

[0254] The diameter of the sensor placement groove 1102 is smaller than the diameter of the base plate 1101. The upper end of the weighing sensor 1104 extends radially outward to form a limiting boss. The weighing sensor 1104 is placed in the sensor placement groove 1102. The lower surface of the limiting boss rests on the base plate 1101 and is connected to the base plate 1101. The weighing sensor can be quickly installed and limited. In this embodiment, a plurality of bolt through holes are circumferentially spaced along the upper edge of the limiting boss, and a plurality of threaded holes are provided on the base plate 1101. The bolts pass through the bolt through holes on the limiting boss and are threadedly connected to the threaded holes, so that the weighing sensor 1104 can be detachably fixed and the installation and maintenance are convenient.

[0255] In this embodiment, an internal threaded hole is opened in the middle of the weighing sensor 1104, and an external threaded column 1106 is fixed at the bottom of the gas cylinder support plate 1105, and the external threaded column is fixed in the middle of the gas cylinder support plate 1105, and the gas cylinder support plate 1105 is located in the gas cylinder limiting groove, and the external threaded column 1106 is inserted in the internal threaded hole and threadedly connected, so as to fix the position of the gas cylinder support plate 1105; but not limited to this, one of the limiting groove and the limiting column can also be set on the weighing sensor, and the other of the limiting groove and the limiting column can be set on the gas cylinder support plate, and the position of the gas cylinder support plate can be fixed by plugging the limiting groove and the limiting column, or the gas cylinder support plate can be directly placed on the weighing sensor.

[0256] In this embodiment, the built-in carbon dioxide gas cylinder 10 is placed in the shell of the hypochlorous acid generator, and a gas cylinder bracket 1202 is fixed in the shell of the hypochlorous acid generator. The gas cylinder bracket 1202 is provided with an arc-shaped groove with an opening facing the built-in carbon dioxide gas cylinder 10, and the body of the built-in carbon dioxide gas cylinder 10 is against the arc-shaped groove; the gas cylinder is limited to ensure the stability of the gas cylinder.

[0257] In this embodiment, a gas cylinder strap 1201 is further provided, which binds the body of the built-in carbon dioxide gas cylinder 10 and is connected to the shell of the hypochlorous acid generator; this further ensures the stability of the gas cylinder placement and the weighing accuracy. When the carbon dioxide gas cylinder needs to be replaced, the gas cylinder strap can be untied.

[0258] According to actual installation needs, the weighing module can also be arranged on the top of the gas cylinder, the weighing module includes a gas cylinder support frame, a weighing sensor and a gas cylinder support plate, the weighing sensor is connected to the gas cylinder support frame, an internal threaded hole is opened in the middle of the bottom surface of the weighing sensor, an external threaded column is fixed in the middle of the upper surface of the gas cylinder support plate, the external threaded column is inserted into the internal threaded hole and threadedly connected to fix the position of the gas cylinder support plate, and the top of the gas cylinder is connected to the gas cylinder support plate via a hanging rope.

[0259] The controller sets multiple weight thresholds, for example, weight threshold 1 and weight threshold 2 are set for the external carbon dioxide gas cylinder (weight threshold 2 is less than weight threshold 1), and weight threshold 3 and weight threshold 4 are set for the internal carbon dioxide gas cylinder (weight threshold 4 is less than weight threshold 3). When the weight of the weighed external carbon dioxide gas cylinder is less than the set weight threshold 1 and greater than the weight threshold 2, it is determined that the carbon dioxide is insufficient. When the weight of the weighed external carbon dioxide gas cylinder is less than or equal to the set weight threshold 2, it is determined that the carbon dioxide is exhausted.

[0260] When the weighed weight of the built-in carbon dioxide cylinder is less than the set weight threshold three and greater than the weight threshold four, it is determined that the carbon dioxide is insufficient. When the weighed weight of the built-in carbon dioxide cylinder is less than or equal to the set weight threshold four, it is determined that the carbon dioxide is exhausted.

[0261] (3) Determination by air pressure difference method

[0262] Gas pressure sensor 1 401 detects the gas pressure of the external air inlet channel or the internal air inlet channel, and gas pressure sensor 2 402 detects the gas pressure of the air outlet channel 603, and feeds back the detected pressure value to the controller, calculates the pressure difference value according to the gas pressure of the air inlet channel and the gas pressure of the air outlet channel, calculates the flow value of carbon dioxide according to the pressure difference value, and judges whether the carbon dioxide is insufficient or exhausted by comparing the flow value of carbon dioxide with the set flow threshold.

[0263] The formula for calculating the flow value based on the pressure difference is: flow value Q = (pressure difference / maximum pressure) × K × maximum flow value, where the maximum pressure refers to the detection value of the gas pressure sensor when the intake solenoid valve is closed, the K value is the offset coefficient (obtained based on data from different sites), and the maximum flow value refers to the maximum flow of the gas supply equipment.

[0264] The controller sets multiple flow thresholds, for example, setting flow threshold one and flow threshold two (flow threshold two is less than flow threshold one) for an external carbon dioxide cylinder, and setting flow threshold three and flow threshold four (flow threshold four is less than flow threshold three) for a built-in carbon dioxide cylinder. When an external carbon dioxide cylinder is used, if the carbon dioxide flow value is less than the set flow threshold one and greater than flow threshold two, it is determined that the carbon dioxide is insufficient; when the carbon dioxide flow value is less than or equal to the set flow threshold two, it is determined that the carbon dioxide is exhausted; when a built-in carbon dioxide cylinder is used, if the carbon dioxide flow value is less than the set flow threshold three and greater than flow threshold four, it is determined that the carbon dioxide is insufficient; when the carbon dioxide flow value is less than or equal to the set flow threshold four, it is determined that the carbon dioxide is exhausted.

[0265] During the gas supply process, in order to ensure that the gas flow entering the gas-liquid mixing control module is appropriate, when the gas flow needs to be reduced, the controller controls the motor shaft to rotate forward. Because the flow control column is threadedly connected to the motor shaft, and the flow control column 702 is restricted by the left and right vertical surfaces, the flow control column 702 moves downward along the axial direction of the sleeve 202, and the flow control plug 7022 moves toward the bottom of the flow control groove 6033 to reduce the gas flow. When the gas flow needs to be increased, the controller controls the motor shaft to rotate in the opposite direction, driving the flow control column 702 to move upward along the axial direction of the sleeve 202.

[0266] (4) Determination by comparing water pressure and air pressure

[0267] As attached Fig.13 As shown, the water pressure sensor detects the water pressure and uploads it to the controller, and the gas pressure sensor detects the air pressure in the air intake channel and uploads it to the controller. The specific comparison and judgment method is as follows (taking the external carbon dioxide cylinder as an example):

[0268] Step S5.1: Determine whether it is in the stage of producing disinfectant (first, the "Production Disinfectant" button is clicked on the touch screen, and second, the liquid level sensor on the liquid storage barrel and the filling machine detects that there is no liquid or insufficient liquid. Both methods can enter the stage of producing disinfectant, and the controller controls the hypochlorous acid disinfectant generator to start preparing hypochlorous acid disinfectant). If yes, jump to step S5.2, if not, jump to step S5.3;

[0269] Step S5.2: Open the external air intake solenoid valve (the external air intake solenoid valve is in the open state when supplying air, but in order to ensure that it is in the air supply state, the controller sends an open command again), delay 2S, and jump to step S.5.4;

[0270] Step S5.3: After a delay of 5S, jump to step S5.1;

[0271] Step S5.4: Determine whether it is in the stage of producing disinfectant, if yes, jump to step S5.6, if not, jump to step S5.5;

[0272] Step S5.5: Jump to step S5.1 after a delay of 100MS;

[0273] Step S5.6: Update the water pressure value and air pressure value (with an accuracy of 0.01Mpa), water pressure value = average value of multiple instantaneous water pressure values, air pressure value = average value of multiple instantaneous air pressure values ​​+ average value of multiple instantaneous water pressure values ​​× C5% (C5 is between 0 and 200, and C5 is 10 in this embodiment), and continue to step S5.7;

[0274] Step S5.7: Determine whether the "air pressure value is less than or equal to the water pressure value" and "has occurred n times in a row". If so, jump to S5.9; if not, jump to S5.8; if the "air pressure value is less than or equal to the water pressure value" and "has occurred n times in a row", it is determined that the air supply is insufficient;

[0275] Step S5.8: Delay 2S, count +1, and return to step S5.7;

[0276] Step S5.9: Close the external air inlet valve, delay 2S, update the water pressure value and air pressure value, and continue to step S5.10;

[0277] Step S5.10: Determine whether the air pressure value is less than or equal to the water pressure value, if yes, jump to step S5.12, if not, jump to step S5.11;

[0278] Step S5.11: No alarm and still considered as insufficient carbon dioxide, jump to step S5.14;

[0279] Step S5.12: Alarm, it is determined that the carbon dioxide is exhausted, and continue to step S5.13;

[0280] Step S5.13: close the external air intake solenoid valve and jump to step S5.15;

[0281] Step S5.14: Open the external air intake solenoid valve and continue to step S5.15;

[0282] Step S5.15: Single detection ends.

[0283] The detection method for judging insufficient or exhausted carbon dioxide using the built-in carbon dioxide cylinder is the same and will not be described in detail here.

[0284] This embodiment is provided with an operation panel, on which a gas shortage alarm light and a gas exhaustion alarm light are installed. The alarm lights are connected to a controller, and the controller controls the on and off of the alarm lights. A buzzer is also installed to remind the staff to replace the gas cylinder in time.

Claims

1. A gas supply control method, characterized in that: Flexible choice of internal gas supply mode and external gas supply mode. When the gas demand is large, choose the mixed gas supply mode. The gas supply method in internal gas supply mode is: Step S1.1: the internal air inlet valve is opened and the internal carbon dioxide cylinder supplies gas; Step S1.2: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S1.3; if not, jump to step S1.1; Step S1.3: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S1.5, if not, jump to step S1.4; Step S1.4: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S1.1, the built-in carbon dioxide cylinder continues to supply gas; Step S1.5: It indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted and the production is automatically stopped; The gas supply methods in external gas supply mode are: Step S2.1: the external air inlet valve is opened and an external carbon dioxide gas cylinder is used to supply gas; Step S2.2: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S2.3; if not, jump to step S2.1; Step S2.3: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S2.5, if not, jump to step S2.4; Step S2.4: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S2.1, the external carbon dioxide cylinder continues to supply gas; Step S2.5: It is indicated that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and production is automatically stopped; The mixed gas supply mode uses one of the gas supply methods 1 and 2 for gas supply. The gas supply method 1 is: Step S3.1: the inner air inlet valve is closed, the outer air inlet valve is opened, and an external carbon dioxide cylinder is used to supply gas; Step S3.2: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.3; if not, jump to step S3.1; Step S3.3: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if so, jump to step S3.5, if not, jump to step S3.4; Step S3.4: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S3.1, the external carbon dioxide cylinder continues to supply gas; Step S3.5: It is indicated that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and the process continues to step S3.6; Step S3.6: the outer air inlet valve is closed, the inner air inlet valve is opened, and the built-in carbon dioxide cylinder supplies gas; Step S3.7: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.8; if not, jump to step S3.6; Step S3.8: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S3.10, if not, jump to step S3.9; Step S3.9: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S3.6, the built-in carbon dioxide cylinder continues to supply gas; Step S3.10: prompting that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted; Step S3.11: Automatically stop production; Gas supply method 2 is: Step S4.1: the outer air inlet valve is closed, the inner air inlet valve is opened, and the built-in carbon dioxide cylinder supplies gas; Step S4.2: Determine whether the internal carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S4.3; if not, jump to step S4.1; Step S4.3: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S4.5, if not, jump to step S4.4; Step S4.4: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S4.1, the built-in carbon dioxide cylinder continues to supply gas; Step S4.5: It is indicated that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and the process continues to step S4.6; Step S4.6: the inner air inlet valve is closed, the outer air inlet valve is opened, and the external carbon dioxide cylinder is used to supply gas; Step S4.7: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide, if yes, jump to step S4.8, if not, jump to step S4.6; Step S4.8: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S4.10, if not, jump to step S4.9; Step S4.9: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S4.6, the external carbon dioxide cylinder continues to supply gas; Step S4.10: prompting that the carbon dioxide in the external carbon dioxide cylinder has been exhausted; Step S4.11: Automatically stop production.

2. A gas supply control method according to claim 1, characterized in that: In the gas supply method 1 of the mixed gas supply mode, when it is determined in step S3.2 that there is sufficient carbon dioxide and / or when it is indicated in step S3.4 that there is insufficient carbon dioxide in the external carbon dioxide cylinder, the following steps are continued: Step S3.12: Determine whether the built-in carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.13; if not, jump to step S3.1; Step S3.13: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S3.15, if not, jump to step S3.14; Step S3.14: prompt that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jump to step S3.1; Step S3.15: It indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and the process jumps to step S3.

1.

3. A gas supply control method according to claim 1 or 2, characterized in that: In the gas supply method 1 of the mixed gas supply mode, when step S3.10 indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, continue with the following steps: Step S3.16: The inner air inlet valve is closed, the outer air inlet valve is opened, and the external carbon dioxide cylinder is used to supply gas; Step S3.17: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S3.18; if not, jump to step S3.16; Step S3.18: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S3.20, if not, jump to step S3.19; Step S3.19: prompting that the external carbon dioxide cylinder is insufficient in carbon dioxide, and jumping to step S3.16, the external carbon dioxide cylinder continues to supply gas; Step S3.20: It indicates that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and jumps to step S3.

11.

4. A gas supply control method according to claim 3, characterized in that: In the gas supply method 1 of the mixed gas supply mode, when step S3.20 indicates that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, the process jumps to step S3.6, and the internal carbon dioxide cylinder continues to supply gas.

5. The gas supply control method according to claim 1, characterized in that: In the gas supply method 2 of the mixed gas supply mode, when it is determined in step S4.2 that there is sufficient carbon dioxide and / or when it is indicated in step S4.4 that there is insufficient carbon dioxide in the built-in carbon dioxide cylinder, the following steps are continued: Step S4.12: Determine whether the external carbon dioxide cylinder is insufficient in carbon dioxide, if yes, jump to step S4.13, if not, jump to step S4.1; Step S4.13: Determine whether the carbon dioxide in the external carbon dioxide cylinder is exhausted, if yes, jump to step S4.15, if not, jump to step S4.14; Step S4.14: prompt that the external carbon dioxide cylinder is insufficient, and jump to step S4.1; Step S4.15: It indicates that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, and the process jumps to step S4.

1.

6. A gas supply control method according to claim 1 or 5, characterized in that: In the gas supply method 2 of the mixed gas supply mode, when step S4.10 indicates that the carbon dioxide in the external carbon dioxide cylinder has been exhausted, continue with the following steps: Step S4.16: The outer air inlet valve is closed, the inner air inlet valve is opened, and the built-in carbon dioxide cylinder supplies gas; Step S4.17: Determine whether the internal carbon dioxide cylinder is insufficient in carbon dioxide. If yes, jump to step S4.18; if not, jump to step S4.16; Step S4.18: Determine whether the carbon dioxide in the built-in carbon dioxide cylinder is exhausted, if yes, jump to step S4.20, if not, jump to step S4.19; Step S4.19: prompting that the carbon dioxide in the built-in carbon dioxide cylinder is insufficient, and jumping to step S4.16, the built-in carbon dioxide cylinder continues to supply gas; Step S4.20: It indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, and the process jumps to step S4.

11.

7. A gas supply control method according to claim 6, characterized in that: In the second gas supply method of the mixed gas supply mode, when step S4.20 indicates that the carbon dioxide in the built-in carbon dioxide cylinder has been exhausted, jump to step S4.6 and continue to supply gas from the external carbon dioxide cylinder.

8. A gas supply control method according to claim 4 or 7, characterized in that: After the continuous switching time between the internal gas supply mode and the external gas supply mode in the mixed gas supply mode exceeds N seconds, production is automatically stopped.

9. The gas supply control method according to claim 1, characterized in that: Use at least one of the pH value detection method, weighing method, gas pressure difference method, and water pressure and air pressure comparison method to determine whether the carbon dioxide in the external carbon dioxide cylinder and the internal carbon dioxide cylinder is insufficient or exhausted; The method of pH value detection is: A PH sensor is provided, and a PH threshold is set. The PH sensor detects the PH value of the hypochlorous acid disinfectant, and a judgment is made based on the comparison between the detected PH value and the set PH threshold; The method of weighing is as follows: A weighing module is provided, and a weight threshold of the weighing module is set. The internal carbon dioxide gas cylinder and the external carbon dioxide gas cylinder are weighed by the weighing module. By measuring the total weight of the internal carbon dioxide gas cylinder and the external carbon dioxide gas cylinder and comparing it with the set weight threshold, it is judged whether the carbon dioxide is insufficient or exhausted; The method of determining by air pressure difference method is: An air inlet channel, an air outlet channel, a gas pressure sensor 1 and a gas pressure sensor 2 are provided, an external carbon dioxide gas cylinder and an internal carbon dioxide gas cylinder are connected to the air inlet channel, the air inlet channel is connected to the air outlet channel, the gas pressure sensor 1 is installed on the air inlet channel, and the gas pressure sensor 2 is installed on the air outlet channel; The gas pressure sensor 1 detects the gas pressure of the inlet channel or the inlet channel, and the gas pressure sensor 2 detects the gas pressure of the outlet channel. The pressure difference value is calculated according to the gas pressure of the inlet channel and the gas pressure of the outlet channel. The flow value of carbon dioxide is calculated according to the pressure difference value. The flow value of carbon dioxide is compared with the set flow threshold value to determine whether the carbon dioxide is insufficient or exhausted. The method of comparing water pressure and air pressure is as follows: A water channel, a gas channel, a water pressure sensor and a gas pressure sensor 1 are provided. The water channel is connected to the water inlet of the gas-liquid mixing control module. The external carbon dioxide gas cylinder and the internal carbon dioxide gas cylinder are connected to the gas inlet of the gas-liquid mixing control module through the gas channel. The water pressure sensor detects the water pressure value of the water channel, and the gas pressure sensor 1 detects the gas pressure value of the gas channel. By comparing the air pressure value with the water pressure value, it is possible to determine whether the carbon dioxide is insufficient or exhausted.

10. A gas supply control method according to claim 9, characterized in that: The specific method for pH value detection is: Open the water inlet and sewage valves, close the liquid outlet and air inlet valves, close or reduce the opening of the gas flow regulating valve, and delay the closing of the water inlet and sewage valves; Determine whether the pH value is between C3 and C4. If yes, continue to determine. If not, it is determined that the water quality is abnormal or the pH sensor initialization fails or the pH sensor is abnormal. Open the air inlet valve, water inlet valve and liquid outlet valve, and adjust the opening of the gas flow regulating valve; Determine whether the PH value is less than C1. If so, it is determined that there is a problem and the production is automatically stopped and an alarm is issued. If not, continue to determine whether the PH value is greater than C2. C2 is greater than C1 and C2 is less than C3. Determine whether the pH value is greater than C2. If so, increase the opening of the gas flow regulating valve. If not, it means that the gas supply is sufficient. Continue to determine whether the pH value is greater than C3. If so, it is determined that the carbon dioxide in the carbon dioxide cylinder is exhausted, and production is automatically stopped and an alarm is issued. If not, it is determined that the carbon dioxide is insufficient.

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