Permanganate index monitor and monitoring method thereof

Abstract

The invention relates to the technical field of permanganate monitoring, and discloses a permanganate index monitor and a monitoring method thereof.The permanganate index monitor comprises a box body, a controller, an indicator and a monitor, the controller, the indicator and the monitor are all installed on the box body, the indicator is arranged at the top of the box body, the monitor is arranged in the box body, and the controller is connected with the controller. The control end of the manipulator is electrically connected with the control end of the monitor and the control end of the indicator, the monitor is used for monitoring water quality, and the indicator is used for indicating a monitoring state; wherein the monitor comprises a device frame, a monitoring system, a heating system and a cooling system, the device frame is installed in the box body, the monitoring system, the heating system and the cooling system are all installed on the device frame, and the control end of the monitoring system, the control end of the heating system and the control end of the cooling system are all electrically connected with the control end of the manipulator. According to the design, the box body, the controller, the indicator and the monitor are adopted, and the detection reagent is matched, so that the water quality problem can be conveniently detected.

Description

Technical Field

[0001] The invention relates to the technical field of permanganate monitoring, and in particular to a permanganate index monitor and a monitoring method thereof. Background Art

[0002] The permanganate index, also known as the potassium permanganate index / oxygen consumption, is a comprehensive indicator that reflects the degree of pollution of surface water bodies by organic pollutants and reducing inorganic substances. It is an important indicator for measuring environmental quality. The latest version of the "National Drinking Water Quality Standard" (GB5749-2006) defines oxygen consumption as a routine mandatory indicator for water quality. Basically, all water quality monitoring agencies test this item every day. At present, the commonly used method for determining the permanganate index in water is the sodium oxalate titration method. However, the sodium oxalate titration method is cumbersome to operate and takes a long time to measure, and requires high skills from the operator and is labor-intensive. In addition, the water quality monitors on the market are all large instruments, which are cumbersome to operate and take a long time to measure, and are time-consuming and labor-intensive. In addition, many water quality monitors do not have alarm warning effects, resulting in abnormal monitoring and failure to know water quality problems in time, which may bring safety hazards. In addition, water quality monitors are generally in a humid environment and are easily affected by the humid environment, which may lead to inaccurate monitoring and corrosion of the instrument. In addition, water quality monitors are greatly affected by ambient temperature, resulting in large monitoring errors.

[0003] Therefore, the existing permanganate monitoring technology needs to be further designed. Summary of the invention

[0004] The purpose of the invention is to overcome the problems of the existing permanganate monitoring technology, such as long measuring time, high technical skills required, time-consuming and labor-intensive, cumbersome operation, no early warning, and environmental influences such as humidity and temperature. The invention is to rationally design the permanganate monitoring technology, adopt a box, a manipulator, an indicator and a monitor, wherein the monitor comprises a frame, a monitoring system, a heating system and a cooling system, and adopt the coordination of monitoring reagents, so as to realize convenient monitoring of water quality problems, save time and labor, be small and easy to carry and operate, have an alarm function, shorten the measuring time and reduce the influence of environmental factors.

[0005] The technical solution of the present invention is as follows:

[0006] A permanganate index monitor, comprising: a box, a manipulator, an indicator and a monitor, wherein the manipulator, the indicator and the monitor are all installed on the box, the indicator is arranged on the top of the box, the monitor is arranged inside the box, the control end of the manipulator is electrically connected to the control end of the monitor and the control end of the indicator respectively, the monitor is used to monitor water quality, and the indicator is used to indicate the monitoring state;

[0007] Among them, the monitor includes a frame, a monitoring system, a heating system and a cooling system. The frame is installed inside the box, and the monitoring system, the heating system and the cooling system are all installed on the frame. The control end of the monitoring system, the control end of the heating system and the control end of the cooling system are all electrically connected to the control end of the controller. The monitoring system is used to monitor water quality, the heating system is used to heat up the environment of the monitoring system, and the cooling system is used to cool down the environment of the monitoring system.

[0008] Furthermore, the box body is made of metal material.

[0009] Furthermore, the box body is provided with a box door.

[0010] Furthermore, the box body is coated with a corrosion-resistant coating.

[0011] Furthermore, the corrosion-resistant coating includes an inorganic zinc-rich layer, an epoxy resin layer, a polyurethane layer and a fluoropolymer layer. The inorganic zinc-rich layer is arranged on the box body, the epoxy resin layer is arranged on the inorganic zinc-rich layer, the polyurethane layer is arranged on the epoxy resin layer, and the fluoropolymer layer is arranged on the polyurethane layer.

[0012] Furthermore, the box body is made of carbon steel or stainless steel.

[0013] Furthermore, the fluorine-containing polymer layer is made of polytetrafluoroethylene.

[0014] Furthermore, a mixed coating of silicon dioxide and polytetrafluoroethylene is deposited on the fluorine-containing polymer layer.

[0015] Furthermore, an inorganic zinc-rich layer is deposited on the box body by spraying technology, and then an epoxy resin layer is deposited on the inorganic zinc-rich layer by spraying technology, a polyurethane layer is deposited on the epoxy resin layer by spraying technology, a polytetrafluoroethylene layer is deposited on the polyurethane layer by spraying technology, and a mixed coating of silicon dioxide and polytetrafluoroethylene is deposited on the polytetrafluoroethylene layer by magnetron sputtering technology.

[0016] Furthermore, the manipulator includes an operation panel, a display and a controller, and the operation panel, the display and the controller are all installed on the box body, the control end of the operation panel and the control end of the display are respectively electrically connected to the control end of the controller, and the control end of the controller is respectively electrically connected to the control end of the indicator, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system.

[0017] Furthermore, the display is a touch screen.

[0018] Furthermore, the monitoring system includes a spectrophotometer and a liquid reservoir, both of which are installed on the instrument frame, the control end of the spectrophotometer is electrically connected to the control end of the manipulator, and the liquid reservoir is used to store monitoring reagents for monitoring water quality.

[0019] Furthermore, the spectrophotometer is an ultraviolet spectrophotometer.

[0020] Furthermore, the monitoring system also includes a light source and a detector, both of which are mounted on the device frame, and the control end of the light source and the control end of the detector are electrically connected to the control end of the manipulator respectively.

[0021] Furthermore, the liquid storage device includes a separating bottle, a mixing bottle, an agitator, a monitoring bottle, a rotor flowmeter, a liquid pump and a pipeline. The separating bottle is selected to have at least two settings, and the separating bottle, mixing bottle, agitator, monitoring bottle and liquid pump are all installed on the device frame. The separating bottle is connected to the mixing bottle through a pipeline and a liquid pump, and the mixing bottle is connected to the monitoring bottle through a pipeline and a liquid pump. The rotor flowmeter is provided on the pipeline, the agitator is installed on the mixing bottle, and the agitator is used to evenly mix the liquid in the mixing bottle. The rotor flowmeter is used to monitor the flow of each pipeline, and the monitoring bottle is also connected to an external water quality monitoring device.

[0022] Furthermore, the monitoring bottle is made of transparent glass.

[0023] Furthermore, the liquid separating bottle and the liquid mixing bottle are made of transparent glass.

[0024] Furthermore, the monitoring reagent includes, by weight, 30-35 parts of D-glucose, 6-8 parts of concentrated sulfuric acid, 5-7 parts of potassium permanganate, 40-45 parts of phosphate buffer and 4-6 parts of diethyl-p-phenylenediamine.

[0025] Furthermore, the potassium permanganate is selected from 1 / 5KMnO4.

[0026] Furthermore, the concentrated sulfuric acid is (1+3)H2SO4.

[0027] Furthermore, the phosphate buffer is a mixed buffer of sodium monohydrogen phosphate and sodium dihydrogen phosphate.

[0028] Furthermore, the cooling system includes a fan, which is installed on the rack and is used to cool the interior of the box. The control end of the fan is electrically connected to the control end of the controller.

[0029] Furthermore, the cooling system also includes a condenser, which is installed on the rack and connected to a fan, and is distributed around the monitoring bottle.

[0030] Furthermore, the condenser is a spherical condenser.

[0031] Furthermore, the heating system includes a temperature sensor and a heating wire, both of which are installed on the device frame, and the heating wire is arranged around the monitoring system. The control end of the temperature sensor and the control end of the heating wire are respectively electrically connected to the control end of the manipulator.

[0032] Furthermore, the heating system also includes a temperature transmitter and a PID controller, both of which are installed on the device rack, the temperature sensor is electrically connected to the temperature transmitter, the temperature transmitter is electrically connected to the PID controller, and the control end of the PID controller is electrically connected to the control end of the manipulator.

[0033] Furthermore, a monitoring method of a permanganate index monitor is provided, wherein the steps of the monitoring method are as follows:

[0034] Step 1: Assembly of the monitor

[0035] A box, a manipulator, an indicator and a monitor are selected, the manipulator, the indicator and the monitor are all installed on the box, the indicator is arranged on the top of the box, the monitor is arranged inside the box, the control end of the manipulator is electrically connected to the control end of the monitor and the control end of the indicator respectively, the monitor is used to monitor the water quality, and the indicator is used to indicate the monitoring status;

[0036] Among them, a device frame, a monitoring system, a heating system and a cooling system are selected, the device frame is installed inside the box, the monitoring system, the heating system and the cooling system are all installed on the device frame, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system are all electrically connected to the control end of the controller, the monitoring system monitors the water quality, the heating system is used to heat up the environment of the monitoring system, and the cooling system is used to cool down the environment of the monitoring system;

[0037] Among them, an operation panel, a display and a controller are selected, and the operation panel, the display and the controller are all installed on the box body, the control end of the operation panel and the control end of the display are respectively electrically connected to the control end of the controller, and the control end of the controller is respectively electrically connected to the control end of the indicator, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system;

[0038] Among them, a spectrophotometer and a liquid storage device are selected, both of which are installed on the device frame, the control end of the spectrophotometer is electrically connected to the control end of the controller, and the liquid storage device is used to store monitoring reagents for monitoring water quality;

[0039] Among them, a liquid separation bottle, a liquid mixing bottle, an agitator, a monitoring bottle, a rotor flowmeter, a liquid extraction pump and a pipeline are selected. Five settings are selected for the liquid separation bottle. The liquid separation bottle, the liquid mixing bottle, the agitator, the monitoring bottle and the liquid extraction pump are all installed on the device frame. The liquid separation bottle is connected to the mixing bottle through a pipeline and a liquid extraction pump. The mixing bottle is connected to the monitoring bottle through a pipeline and a liquid extraction pump. A rotor flowmeter is provided on the pipeline. The agitator is installed on the mixing bottle, and the agitator is used to evenly mix the liquid in the mixing bottle. The rotor flowmeter is used to monitor the flow of each pipeline. The monitoring bottle is also connected to an external water quality monitoring device.

[0040] Among them, a fan is selected, the fan is installed on the frame, the fan is used to cool the inside of the box, and the control end of the fan is electrically connected to the control end of the controller;

[0041] Among them, a temperature sensor and a heating wire are selected, and both the temperature sensor and the heating wire are installed on the device frame, and the heating wire is arranged around the monitoring system, and the control end of the temperature sensor and the control end of the heating wire are electrically connected to the control end of the controller respectively;

[0042] wherein, the assembled monitor is powered on;

[0043] Step 2: Weighing of monitoring reagents

[0044] The invention comprises, by weight, 30-35 parts of D-glucose, 6-8 parts of concentrated sulfuric acid, 5-7 parts of potassium permanganate, 40-45 parts of phosphate buffer and 4-6 parts of diethyl-p-phenylenediamine;

[0045] Step 3: Monitoring reagent loading and unloading

[0046] Select the monitoring instrument of step 1 and the monitoring reagent of step 2, and add D-glucose solution, concentrated sulfuric acid, potassium permanganate solution, phosphate buffer and diethyl-p-phenylenediamine solution into their respective separation bottles;

[0047] Step 4: Add monitoring reagent to standard water

[0048] Select the monitor equipped with monitoring reagents in step 3, first add a certain amount of standard water into the monitoring bottle, and heat the monitoring bottle to 100°C through a heating wire, and keep it at a constant temperature, then add D-glucose solution into the monitoring bottle through a pipeline and a liquid pump, then add concentrated sulfuric acid into the monitoring bottle through a pipeline and a liquid pump, then add potassium permanganate solution into the monitoring bottle through a pipeline and a liquid pump, then add phosphate buffer into the monitoring bottle through a pipeline and a liquid pump, then add diethyl-p-phenylenediamine solution into the monitoring bottle through a pipeline and a liquid pump, let it stand for 20 seconds, and then detect it with a spectrophotometer to measure the absorbance value A;

[0049] Step 5: Add monitoring reagent to monitor water quality

[0050] Select the monitor equipped with monitoring reagents in step 3, first add a certain amount of external water into the monitoring bottle, and heat the monitoring bottle to 100°C through a heating wire, and keep it at a constant temperature, then add D-glucose solution into the monitoring bottle through a pipeline and a liquid pump, then add concentrated sulfuric acid into the monitoring bottle through a pipeline and a liquid pump, then add potassium permanganate solution into the monitoring bottle through a pipeline and a liquid pump, then add phosphate buffer into the monitoring bottle through a pipeline and a liquid pump, then add diethyl-p-phenylenediamine solution into the monitoring bottle through a pipeline and a liquid pump, let it stand for 20 seconds, and then detect it with a spectrophotometer to measure the absorbance value B;

[0051] Step 6: Monitor Operation

[0052] Based on steps 3 and 4, the spectrophotometer collects the absorbance of the liquid in the monitoring bottle and feeds it back to the controller of the monitor for comparison and analysis. The absorbance difference between the external water quality and the standard water quality is analyzed and displayed on the monitor. If the difference in the detected water quality exceeds the standard value, an alarm warning will be issued.

[0053] Beneficial Effects

[0054] The present invention adopts a box, a manipulator, an indicator and a monitor through a rational design of the permanganate monitoring technology, wherein the monitor includes a frame, a monitoring system, a heating system and a cooling system, and adopts the coordination of monitoring reagents, so as to realize convenient monitoring of water quality problems, save time and labor, be small and convenient for handling and operation, have an alarm function, shorten the measurement time and reduce the influence of environmental factors, etc. The monitor adopts a spectrophotometric method for measuring the permanganate index (chemical oxygen demand) to monitor water quality. Under neutral pH conditions (PH=6.5), potassium permanganate will quickly oxidize diethyl-p-phenylenediamine to form a stable pink free radical. The process is sufficient to form a pink free radical in only 20 seconds. The generated pink free radical can be quantitatively measured by an ultraviolet spectrophotometer, and ultraviolet light is selected to be monitored at 551nm. The monitor is easy to operate, has simplified monitoring and online monitoring, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 The present invention is a schematic structural diagram of a permanganate index monitor.

[0056] Figure 2 The figure is a schematic diagram of the internal structure of a permanganate index monitor of the present invention.

[0057] Figure 3 The figure is a schematic diagram of the contact angle of the corrosion-resistant coating of a permanganate index monitor of the present invention.

[0058] Figure 4The figure is a graph showing the relationship between the absorbance and wavelength of a permanganate index monitor of the present invention.

[0059] Figure 5 The present invention is a graph showing the relationship between the absorption rate and the reaction time of a permanganate index monitor.

[0060] Figure numbers: 01, box body; 02, monitoring bottle; 03, indicator; 04, controller; 05, box door; 06, separation bottle; 07, cooling system; 08, heating system; 09, external water pipe; 10, rotor flowmeter; 11, mixing bottle; 12, mixing tube; 13, agitator. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] See also Figure 1-Figure 2 As shown, the present invention provides a permanganate index monitor and a monitoring method thereof, the permanganate index monitor comprises: a box 01, a controller 04, an indicator 03 and a monitor, the box 01 is made of a metal material, and the box 01 is made of carbon steel or stainless steel, the box 01 is provided with a box door 05, and the box 01 is coated with a corrosion-resistant coating;

[0063] The controller 04, indicator 03 and monitor are all installed on the box 01, the indicator 03 is arranged on the top of the box 01, and the monitor is arranged inside the box 01. The control end of the controller 04 is electrically connected to the control end of the monitor and the control end of the indicator 03 respectively. The monitor is used to monitor the water quality, and the indicator 03 is used to indicate the monitoring status.

[0064] The monitor includes a frame, a monitoring system, a heating system 08 and a cooling system 07. The frame is installed inside the box 01. The monitoring system, the heating system 08 and the cooling system 07 are all installed on the frame. The control end of the monitoring system, the control end of the heating system 08 and the control end of the cooling system 07 are all electrically connected to the control end of the controller 04. The monitoring system is used to monitor the water quality, the heating system 08 is used to heat up the environment of the monitoring system, and the cooling system 07 is used to cool down the environment of the monitoring system.

[0065] The corrosion-resistant coating comprises an inorganic zinc-rich layer, an epoxy resin layer, a polyurethane layer and a fluoropolymer layer, the inorganic zinc-rich layer is arranged on the box 01, an epoxy resin layer is arranged on the inorganic zinc-rich layer, a polyurethane layer is arranged on the epoxy resin layer, and a fluoropolymer layer is arranged on the polyurethane layer; the fluoropolymer layer is made of polytetrafluoroethylene; a mixed coating of silicon dioxide and polytetrafluoroethylene is deposited on the fluoropolymer layer; specifically: an inorganic zinc-rich layer is deposited on the box 01 by spraying technology, and then an epoxy resin layer is deposited on the inorganic zinc-rich layer by spraying technology, a polyurethane layer is deposited on the epoxy resin layer by spraying technology, a polytetrafluoroethylene layer is deposited on the polyurethane layer by spraying technology, and a mixed coating of silicon dioxide and polytetrafluoroethylene is deposited on the polytetrafluoroethylene layer by magnetron sputtering technology;

[0066] The manipulator 04 includes an operation panel, a display and a controller, which are all installed on the box 01. The control end of the operation panel and the control end of the display are electrically connected to the control end of the controller, and the control end of the controller is electrically connected to the control end of the indicator 03, the control end of the monitoring system, the control end of the heating system 08 and the control end of the cooling system 07; the display is a touch screen;

[0067] Among them, the monitoring system includes a spectrophotometer and a liquid storage device, both of which are installed on the device frame, the control end of the spectrophotometer is electrically connected to the control end of the controller 04, and the liquid storage device is used to store monitoring reagents for monitoring water quality; the spectrophotometer selects an ultraviolet light spectrophotometer; the monitoring system also includes a light source and a detector, both of which are installed on the device frame, the control end of the light source and the control end of the detector are electrically connected to the control end of the controller 04, and the light source and the detector are used to assist the use of the spectrophotometer, and can also be used for operations such as calibrating the spectrophotometer;

[0068] The liquid storage device comprises a liquid separation bottle 06, a liquid mixing bottle 11, an agitator 13, a monitoring bottle 02, a rotor flowmeter 10, a liquid extraction pump and a pipeline. The liquid separation bottle 06 is selected to have at least two settings. The liquid separation bottle 06, the liquid mixing bottle 11, the agitator 13, the monitoring bottle 02 and the liquid extraction pump are all installed on the device frame. The liquid separation bottle 06 is connected to the liquid mixing bottle 11 through a pipeline and a liquid extraction pump. The liquid mixing bottle 11 is connected to the monitoring bottle 02 through a pipeline (mixing pipe 12) and a liquid extraction pump. The rotor flowmeter 10 is provided on the pipeline. The agitator 13 is installed on the mixing bottle 11, and the agitator 13 is used to evenly mix the liquid in the mixing bottle 11. The rotor flowmeter 10 is used to monitor the flow of each pipeline. The monitoring bottle 02 is also connected to the outside through an external water pipe 09 to monitor the water quality. The monitoring bottle 02 is selected to be a monitoring bottle made of transparent glass. The liquid separation bottle 06 and the mixing bottle 11 are selected to be liquid separation bottles and mixing bottles made of transparent glass.

[0069] The monitoring reagent comprises, by weight, 30-35 parts of D-glucose, 6-8 parts of concentrated sulfuric acid, 5-7 parts of potassium permanganate, 40-45 parts of phosphate buffer and 4-6 parts of diethyl-p-phenylenediamine; the potassium permanganate is selected from 1 / 5KMnO4; the concentrated sulfuric acid is selected from (1+3)H2SO4; the phosphate buffer is selected from a mixed buffer of sodium monohydrogen phosphate and sodium dihydrogen phosphate;

[0070] The cooling system 07 includes a fan, which is mounted on the frame and used to cool the inside of the box 01. The control end of the fan is electrically connected to the control end of the controller 04. The cooling system 07 also includes a condenser, which is mounted on the frame and connected to the fan. The condenser is distributed around the monitoring bottle 02. The condenser is a spherical condenser.

[0071] Among them, the heating system 08 includes a temperature sensor and a heating wire, both of which are installed on the device frame, the heating wire is arranged around the monitoring system, and the control end of the temperature sensor and the control end of the heating wire are electrically connected to the control end of the controller 04 respectively; the heating system 08 also includes a temperature transmitter and a PID controller, both of which are installed on the device frame, the temperature sensor is electrically connected to the temperature transmitter, the temperature transmitter is electrically connected to the PID controller, and the control end of the PID controller is electrically connected to the control end of the controller 04.

[0072] Among them, a monitoring method of a permanganate index monitor, the monitoring method steps are as follows:

[0073] Step 1: Assembly of the monitor

[0074] A box, a manipulator, an indicator and a monitor are selected, the manipulator, the indicator and the monitor are all installed on the box, the indicator is arranged on the top of the box, the monitor is arranged inside the box, the control end of the manipulator is electrically connected to the control end of the monitor and the control end of the indicator respectively, the monitor is used to monitor the water quality, and the indicator is used to indicate the monitoring status;

[0075] Among them, a device frame, a monitoring system, a heating system and a cooling system are selected, the device frame is installed inside the box, the monitoring system, the heating system and the cooling system are all installed on the device frame, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system are all electrically connected to the control end of the controller, the monitoring system monitors the water quality, the heating system is used to heat up the environment of the monitoring system, and the cooling system is used to cool down the environment of the monitoring system;

[0076] Among them, an operation panel, a display and a controller are selected, and the operation panel, the display and the controller are all installed on the box body, the control end of the operation panel and the control end of the display are respectively electrically connected to the control end of the controller, and the control end of the controller is respectively electrically connected to the control end of the indicator, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system;

[0077] Among them, a spectrophotometer and a liquid storage device are selected, both of which are installed on the device frame, the control end of the spectrophotometer is electrically connected to the control end of the controller, and the liquid storage device is used to store monitoring reagents for monitoring water quality;

[0078] Among them, a liquid separation bottle, a liquid mixing bottle, an agitator, a monitoring bottle, a rotor flowmeter, a liquid extraction pump and a pipeline are selected. Five settings are selected for the liquid separation bottle. The liquid separation bottle, the liquid mixing bottle, the agitator, the monitoring bottle and the liquid extraction pump are all installed on the device frame. The liquid separation bottle is connected to the mixing bottle through a pipeline and a liquid extraction pump. The mixing bottle is connected to the monitoring bottle through a pipeline and a liquid extraction pump. A rotor flowmeter is provided on the pipeline. The agitator is installed on the mixing bottle, and the agitator is used to evenly mix the liquid in the mixing bottle. The rotor flowmeter is used to monitor the flow of each pipeline. The monitoring bottle is also connected to an external water quality monitoring device.

[0079] Among them, a fan is selected, the fan is installed on the frame, the fan is used to cool the inside of the box, and the control end of the fan is electrically connected to the control end of the controller;

[0080] Among them, a temperature sensor and a heating wire are selected, and both the temperature sensor and the heating wire are installed on the device frame, and the heating wire is arranged around the monitoring system, and the control end of the temperature sensor and the control end of the heating wire are electrically connected to the control end of the controller respectively;

[0081] wherein, the assembled monitor is powered on;

[0082] Step 2: Weighing of monitoring reagents

[0083] The invention comprises, by weight, 35 parts of D-glucose, 8 parts of concentrated sulfuric acid, 7 parts of potassium permanganate, 44 parts of phosphate buffer and 6 parts of diethyl-p-phenylenediamine;

[0084] Step 3: Monitoring reagent loading and unloading

[0085] Select the monitoring instrument of step 1 and the monitoring reagent of step 2, and add D-glucose solution, concentrated sulfuric acid, potassium permanganate solution, phosphate buffer and diethyl-p-phenylenediamine solution into their respective separation bottles;

[0086] Step 4: Add monitoring reagent to standard water

[0087] Select the monitor equipped with monitoring reagents in step 3, first add a certain amount of standard water into the monitoring bottle, and heat the monitoring bottle to 100°C through a heating wire, and keep it at a constant temperature, then add D-glucose solution into the monitoring bottle through a pipeline and a liquid pump, then add concentrated sulfuric acid into the monitoring bottle through a pipeline and a liquid pump, then add potassium permanganate solution into the monitoring bottle through a pipeline and a liquid pump, then add phosphate buffer into the monitoring bottle through a pipeline and a liquid pump, then add diethyl-p-phenylenediamine solution into the monitoring bottle through a pipeline and a liquid pump, let it stand for 20 seconds, and then detect it with a spectrophotometer to measure the absorbance value A;

[0088] Step 5: Add monitoring reagent to monitor water quality

[0089] Select the monitor equipped with monitoring reagents in step 3, first add a certain amount of external water into the monitoring bottle, and heat the monitoring bottle to 100°C through a heating wire, and keep it at a constant temperature, then add D-glucose solution into the monitoring bottle through a pipeline and a liquid pump, then add concentrated sulfuric acid into the monitoring bottle through a pipeline and a liquid pump, then add potassium permanganate solution into the monitoring bottle through a pipeline and a liquid pump, then add phosphate buffer into the monitoring bottle through a pipeline and a liquid pump, then add diethyl-p-phenylenediamine solution into the monitoring bottle through a pipeline and a liquid pump, let it stand for 20 seconds, and then detect it with a spectrophotometer to measure the absorbance value B;

[0090] Step 6: Monitor Operation

[0091] Based on steps 3 and 4, the spectrophotometer collects the absorbance of the liquid in the monitoring bottle and feeds it back to the controller of the monitor for comparison and analysis. The absorbance difference between the external water quality and the standard water quality is analyzed and displayed on the monitor. If the difference in the detected water quality exceeds the standard value, an alarm warning will be issued.

[0092] Among them, the monitor is tested. Figure 3 The schematic diagram of the contact angle of the corrosion-resistant coating of the permanganate index monitor shows that the surface of the monitor is hydrophobic, and its contact angle is 142°. The spectrophotometer is used for detection. Figure 4 The graph is a relationship between the absorbance and wavelength of the permanganate index monitor. It can be seen that when the monitoring reagent monitors water quality, the absorbance is the highest when the wavelength is 551nm. Therefore, the present invention uses a wavelength of 551nm as the light source; Figure 5 This is a graph showing the relationship between the absorption rate and reaction time of the permanganate index monitor. It can be seen that the reaction effect occurs in less than 20 seconds.

[0093] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A permanganate index monitor, characterized in that: The permanganate index monitor comprises: a box, a manipulator, an indicator and a monitor, wherein the manipulator, the indicator and the monitor are all installed on the box, the indicator is arranged on the top of the box, the monitor is arranged inside the box, the control end of the manipulator is electrically connected to the control end of the monitor and the control end of the indicator respectively, the monitor is used to monitor the water quality, and the indicator is used to indicate the monitoring status; Among them, the monitor includes a frame, a monitoring system, a heating system and a cooling system. The frame is installed inside the box, and the monitoring system, the heating system and the cooling system are all installed on the frame. The control end of the monitoring system, the control end of the heating system and the control end of the cooling system are all electrically connected to the control end of the controller. The monitoring system is used to monitor water quality, the heating system is used to heat up the environment of the monitoring system, and the cooling system is used to cool down the environment of the monitoring system.

2. A permanganate index monitor according to claim 1, characterized in that: The manipulator includes an operation panel, a display and a controller, which are all installed on the box body. The control end of the operation panel and the control end of the display are respectively electrically connected to the control end of the controller, and the control end of the controller is respectively electrically connected to the control end of the indicator, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system.

3. A permanganate index monitor according to claim 2, characterized in that: The display is a touch screen.

4. A permanganate index monitor according to claim 1, characterized in that: The monitoring system comprises a spectrophotometer and a liquid reservoir, both of which are mounted on the instrument frame, a control end of the spectrophotometer is electrically connected to a control end of the manipulator, and the liquid reservoir is used to store monitoring reagents for monitoring water quality.

5. A permanganate index monitor according to claim 4, characterized in that: The monitoring system further comprises a light source and a detector, both of which are mounted on the device frame, and a control end of the light source and a control end of the detector are electrically connected to a control end of the manipulator respectively.

6. A permanganate index monitor according to claim 4, characterized in that: The liquid storage device includes a separating bottle, a mixing bottle, an agitator, a monitoring bottle, a rotor flowmeter, a liquid pump and a pipeline. The separating bottle is selected to have at least two settings. The separating bottle, the mixing bottle, the agitator, the monitoring bottle and the liquid pump are all installed on the device frame. The separating bottle is connected to the mixing bottle via a pipeline and a liquid pump. The mixing bottle is connected to the monitoring bottle via a pipeline and a liquid pump. The rotor flowmeter is provided on the pipeline. The agitator is installed on the mixing bottle and is used to evenly mix the liquid in the mixing bottle. The rotor flowmeter is used to monitor the flow of each pipeline. The monitoring bottle is also connected to an external water quality monitoring device.

7. A permanganate index monitor according to claim 4, characterized in that: The monitoring reagent comprises, by weight, 30-35 parts of D-glucose, 6-8 parts of concentrated sulfuric acid, 5-7 parts of potassium permanganate, 40-45 parts of phosphate buffer and 4-6 parts of diethyl-p-phenylenediamine.

8. A permanganate index monitor according to claim 1, characterized in that: The cooling system comprises a fan, which is mounted on the frame and used to cool the interior of the box. The control end of the fan is electrically connected to the control end of the controller.

9. A permanganate index monitor according to claim 1, characterized in that: The heating system includes a temperature sensor and a heating wire, both of which are installed on the device frame. The heating wire is arranged around the monitoring system, and the control end of the temperature sensor and the control end of the heating wire are electrically connected to the control end of the manipulator respectively.

10. A monitoring method of a permanganate index monitor, characterized in that: The monitoring method steps are as follows: Step 1: Assembly of the monitor A box, a manipulator, an indicator and a monitor are selected, the manipulator, the indicator and the monitor are all installed on the box, the indicator is arranged on the top of the box, the monitor is arranged inside the box, the control end of the manipulator is electrically connected to the control end of the monitor and the control end of the indicator respectively, the monitor is used to monitor the water quality, and the indicator is used to indicate the monitoring status; Among them, a device frame, a monitoring system, a heating system and a cooling system are selected, the device frame is installed inside the box, the monitoring system, the heating system and the cooling system are all installed on the device frame, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system are all electrically connected to the control end of the controller, the monitoring system monitors the water quality, the heating system is used to heat up the environment of the monitoring system, and the cooling system is used to cool down the environment of the monitoring system; Among them, an operation panel, a display and a controller are selected, and the operation panel, the display and the controller are all installed on the box body, the control end of the operation panel and the control end of the display are respectively electrically connected to the control end of the controller, and the control end of the controller is respectively electrically connected to the control end of the indicator, the control end of the monitoring system, the control end of the heating system and the control end of the cooling system; Among them, a spectrophotometer and a liquid storage device are selected, both of which are installed on the device frame, the control end of the spectrophotometer is electrically connected to the control end of the controller, and the liquid storage device is used to store monitoring reagents for monitoring water quality; Among them, a liquid separation bottle, a liquid mixing bottle, an agitator, a monitoring bottle, a rotor flowmeter, a liquid extraction pump and a pipeline are selected. Five settings are selected for the liquid separation bottle. The liquid separation bottle, the liquid mixing bottle, the agitator, the monitoring bottle and the liquid extraction pump are all installed on the device frame. The liquid separation bottle is connected to the mixing bottle through a pipeline and a liquid extraction pump. The mixing bottle is connected to the monitoring bottle through a pipeline and a liquid extraction pump. A rotor flowmeter is provided on the pipeline. The agitator is installed on the mixing bottle, and the agitator is used to evenly mix the liquid in the mixing bottle. The rotor flowmeter is used to monitor the flow of each pipeline. The monitoring bottle is also connected to an external water quality monitoring device. Among them, a fan is selected, the fan is installed on the frame, the fan is used to cool the inside of the box, and the control end of the fan is electrically connected to the control end of the controller; Among them, a temperature sensor and a heating wire are selected, and both the temperature sensor and the heating wire are installed on the device frame, and the heating wire is arranged around the monitoring system, and the control end of the temperature sensor and the control end of the heating wire are electrically connected to the control end of the controller respectively; wherein, the assembled monitor is powered on; Step 2: Weighing of monitoring reagents The invention comprises, by weight, 30-35 parts of D-glucose, 6-8 parts of concentrated sulfuric acid, 5-7 parts of potassium permanganate, 40-45 parts of phosphate buffer and 4-6 parts of diethyl-p-phenylenediamine; Step 3: Monitoring reagent loading and unloading Select the monitoring instrument of step 1 and the monitoring reagent of step 2, and add D-glucose solution, concentrated sulfuric acid, potassium permanganate solution, phosphate buffer and diethyl-p-phenylenediamine solution into their respective separation bottles; Step 4: Add monitoring reagent to standard water Select the monitor equipped with monitoring reagents in step 3, first add a certain amount of standard water into the monitoring bottle, and heat the monitoring bottle to 100°C through a heating wire, and keep it at a constant temperature, then add D-glucose solution into the monitoring bottle through a pipeline and a liquid pump, then add concentrated sulfuric acid into the monitoring bottle through a pipeline and a liquid pump, then add potassium permanganate solution into the monitoring bottle through a pipeline and a liquid pump, then add phosphate buffer into the monitoring bottle through a pipeline and a liquid pump, then add diethyl-p-phenylenediamine solution into the monitoring bottle through a pipeline and a liquid pump, let it stand for 20 seconds, and then detect it with a spectrophotometer to measure the absorbance value A; Step 5: Add monitoring reagent to monitor water quality Select the monitor equipped with monitoring reagents in step 3, first add a certain amount of external water into the monitoring bottle, and heat the monitoring bottle to 100°C through a heating wire, and keep it at a constant temperature, then add D-glucose solution into the monitoring bottle through a pipeline and a liquid pump, then add concentrated sulfuric acid into the monitoring bottle through a pipeline and a liquid pump, then add potassium permanganate solution into the monitoring bottle through a pipeline and a liquid pump, then add phosphate buffer into the monitoring bottle through a pipeline and a liquid pump, then add diethyl-p-phenylenediamine solution into the monitoring bottle through a pipeline and a liquid pump, let it stand for 20 seconds, and then detect it with a spectrophotometer to measure the absorbance value B; Step 6: Monitor Operation Based on steps 3 and 4, the spectrophotometer collects the absorbance of the liquid in the monitoring bottle and feeds it back to the controller of the monitor for comparison and analysis. The absorbance difference between the external water quality and the standard water quality is analyzed and displayed on the monitor. If the difference in the detected water quality exceeds the standard value, an alarm warning will be issued.

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