CN113186551A

CN113186551A - Sodium hypochlorite generator and production method thereof

Info

Publication number: CN113186551A
Application number: CN202110501287.6A
Authority: CN
Inventors: 尹宝; 尹恺; 陈日珍; 李凯
Original assignee: Weifang Siyuan Environmental Protection Equipment Co ltd
Current assignee: Weifang Siyuan Environmental Protection Equipment Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-07-30

Abstract

The invention discloses a sodium hypochlorite generator and a production method thereof, the sodium hypochlorite generator comprises a sodium hypochlorite electrolytic tank, one side of the sodium hypochlorite electrolytic tank is provided with an automatic salt-blending pump, a liquid outlet end of the automatic salt-blending pump is communicated with the sodium hypochlorite electrolytic tank through a mixing pipeline, a water inlet end of the automatic salt-blending pump is connected with a water inlet pipe, the other end of the water inlet pipe is communicated with a liquid outlet of a water softener, the water inlet pipe is connected with a water cooling pipeline in parallel, a switch assembly for controlling the communication of the water cooling pipeline is arranged on the water cooling pipeline, a liquid outlet end of the sodium hypochlorite electrolytic tank is communicated with a medicine storage tank through a liquid outlet pipeline, a temperature detection assembly is connected in series on the liquid outlet pipeline, the sodium hypochlorite generator is automatically controlled by a control system, the real-time water temperature detected by the temperature detection assembly is sent to the control system, the control system automatically controls the operation of the water cooling pipeline according to the real-time water temperature, the invention can control the temperature of the sodium hypochlorite electrolytic cell in real time and improve the preparation effect of the sodium hypochlorite liquid medicine.

Description

Sodium hypochlorite generator and production method thereof

Technical Field

The invention belongs to the technical field of sodium hypochlorite preparation, and particularly relates to a sodium hypochlorite generator and a production method thereof.

Background

The sodium hypochlorite solution is a non-naturally-occurring strong oxidant, has the same sterilization effect as chlorine gas, and belongs to a real high-efficiency, broad-spectrum and safe powerful sterilization and virus killing agent; and sodium hypochlorite has been widely used for disinfection and epidemic prevention of various water bodies including tap water, industrial circulating water, swimming pool water, hospital sewage, and the like.

The existing sodium hypochlorite solution is basically prepared by metering dilute brine into an electrolytic cell for electrolysis, but the existing sodium hypochlorite generator easily emits a large amount of heat during the dilute brine electrolysis, so that the temperature rise of electrolyte in the sodium hypochlorite generator is fast, and the concentration of effective chlorine in the electrolyte is reduced; greatly reducing the use effect.

In order to solve the above problems, an electrolytic sodium hypochlorite system is available in the market, and the electrolytic sodium hypochlorite system has patent numbers: CN201620786298.8 discloses a high-efficient salt solution electrolysis sodium hypochlorite system of high yield includes that concentrated brine jar, dilute brine store jar, sodium hypochlorite generator, sodium hypochlorite store jar and dosing pump, be connected with the circulation between sodium hypochlorite generator and the sodium hypochlorite store jar and store the jar, the export that the jar was stored in the circulation passes through dehydrogenation equipment and cooling unit and sodium hypochlorite generator's entry cyclic connection, is equipped with sodium hypochlorite concentration detector on the circulation storage jar, and sodium hypochlorite generator's exit still is connected with hydrochloric acid and stores the acid jar, and hydrochloric acid stores the entry cyclic connection of acid jar through pickling pump and sodium hypochlorite generator.

Above-mentioned this type of electrolysis sodium hypochlorite system can produce sodium hypochlorite, and adopt the flow of accelerating the dilute brine and adopt the cooling unit to cool off in real time the dilute brine, in order to solve sodium hypochlorite generator's temperature rise problem, but this type of current electrolysis sodium hypochlorite system adopts the flow of accelerating the dilute brine to solve sodium hypochlorite generator's temperature rise problem, and the negative effect who brings is that the sodium chloride electrolysis is untimely, hypochlorous acid, sodium hypochlorite concentration is low, and contain the high problem of salinity, and adopt the circulation to let in dilute brine and cooling unit to cool off in real time the dilute brine, cause this system running cost high, greatly reduced result of use.

The concentration of the dilute brine is proportioned manually, and the dilute brine is generally proportioned by controlling the liquid level; the proportioning mode is not only tedious and slow, but also causes the inaccurate concentration of the proportioned dilute brine, thereby influencing the preparation of sodium hypochlorite.

Disclosure of Invention

The invention aims to solve the main technical problem of providing a sodium hypochlorite generator which has a simple structure, is convenient to use, can accurately and automatically proportion dilute brine to improve the production effect of sodium hypochlorite liquid medicine, can control the temperature of a sodium hypochlorite electrolytic tank in real time to improve the preparation effect of the sodium hypochlorite liquid medicine, can automatically pickle the sodium hypochlorite electrolytic tank to avoid scale in the sodium hypochlorite electrolytic tank and has high integral automation degree, and a production method thereof.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a sodium hypochlorite generator, including the sodium hypochlorite electrolysis trough, the sodium hypochlorite electrolysis trough is supplied power by electrolytic power source, one side of sodium hypochlorite electrolysis trough is provided with the automatic salt pump that joins in marriage, it has mixed pipeline to join in marriage between the liquid outlet end of salt pump and the feed liquor end of sodium hypochlorite electrolysis trough automatically, even there is the inlet tube on the water inlet end of joining in marriage the salt pump automatically, the other end of inlet tube and the liquid outlet intercommunication of water softener, parallelly connected has the water cooling pipeline on the inlet tube, set up the switch module who is used for controlling the water cooling pipeline intercommunication on the water cooling pipeline, the liquid outlet end of sodium hypochlorite electrolysis trough passes through the liquid outlet pipeline and stores up the medicinal cupping intercommunication, it has temperature detection subassembly to establish ties on the outlet tube, sodium hypochlorite generator carries out automated control by control system, the real-time temperature that temperature detection subassembly detected obtains sends to in the control system, control system is according to this real-time temperature automated control water cooling pipeline work.

The following is a further optimization of the above technical solution of the present invention:

a water inlet pressure sensor, a water inlet valve and a water inlet ball valve are sequentially arranged on the water inlet pipe in series, the water inlet pressure sensor is used for constantly detecting the water pressure in the water inlet pipe, and the water inlet valve automatically controls the on-off of the water inlet pipe; the water cooling pipeline comprises a cooling water device, the water inlet end of the cooling water device is communicated with the water inlet pipe through a softened water inlet pipe, and the water outlet end of the cooling water device is communicated with the lower position of the water inlet pipe through a softened water outlet pipe.

Further optimization: the switch assembly comprises a cooling water inlet valve, a cooling water outlet valve and a stop valve, wherein the cooling water inlet valve is connected in series with the softened water inlet pipe, the cooling water outlet valve is connected in series with the softened water outlet pipe, and the stop valve is connected in series with the water inlet pipe and is positioned between the softened water inlet pipe and the softened water outlet pipe.

Further optimization: the drain pipe is including going out the pencil, goes out the one end of pencil and the play liquid end intercommunication of sodium hypochlorite electrolysis trough, goes out the other end and the medicine storage tank intercommunication of pencil, and it has a medicine valve to establish ties on going out the pencil, goes out the upper reaches position intercommunication that lies in a medicine valve on the pencil and has the pickling wet return, and the other end and the pickling bucket intercommunication of pickling wet return establish ties on the pickling wet return and have the pickling return valve, temperature-detecting component includes temperature sensor, and temperature sensor establishes ties and installs on a pencil and be close to the position department of sodium hypochlorite electrolysis trough liquid outlet.

Further optimization: the mixing pipeline comprises a mixing pipe, a liquid inlet of the mixing pipe is communicated with a liquid outlet of the automatic salt mixing pump, a liquid outlet of the mixing pipe is communicated with a liquid inlet of the sodium hypochlorite electrolytic cell, and a pipeline mixer, a dilute brine electromagnetic flow meter, a mechanical flow meter and a dilute brine valve are sequentially arranged on the mixing pipe at intervals along the flow direction of dilute brine in the mixing pipe.

Further optimization: the utility model discloses a pickling pipeline, including the mixing tube, the mixing tube is last to be connected with the liquid inlet valve of dilute brine valve, the mixing tube is last to be connected with the liquid outlet end of pickling pipe, the liquid outlet end of pickling pipe is located the low reaches position of dilute brine valve on the mixing tube, the pickling is last to be close to the position department of mixing tube and to establish ties and has the pickling inlet valve, the feed liquor end intercommunication of pickling pipe has the pickling pump, the other end and the pickling bucket intercommunication of pickling pump.

Further optimization: the control system comprises a PLC main controller, a control screen is electrically connected with the input end and the output end of the PLC main controller in a bidirectional mode, a dilute brine valve, a medicine outlet valve, a water inlet valve, a pickling inlet valve and a pickling return valve are respectively electrically connected with the output end of the PLC main controller, the control ends of a water softener and an electrolysis power supply are respectively electrically connected with the output end of the PLC main controller, and the control ends of a pickling pump and an automatic salt distribution pump are respectively electrically connected with the output end of the PLC main controller.

Further optimization: the control end of the cooling water device, the cooling water inlet valve, the cooling water outlet valve and the stop valve is electrically connected with the output end of the PLC main controller respectively, the output end of the temperature sensor is electrically connected with the output end of the PLC main controller, a maximum water temperature preset threshold value is arranged in the PLC main controller, and after the temperature sensor detects that real-time water temperature is sent to the PLC main controller, the PLC main controller compares the real-time water temperature with the maximum water temperature preset threshold value.

The invention also provides a production method of sodium hypochlorite, which comprises a sodium hypochlorite production step and an acid pickling step based on the sodium hypochlorite generator;

the sodium hypochlorite production step comprises:

s1, proportioning dilute brine in equal proportion: the PLC main controller controls an automatic salt preparation pump and a water inlet valve to be opened, and controls an acid washing pump, an acid washing inlet valve and an acid washing return valve to be closed, the automatic salt preparation pump respectively sucks softened water and strong brine in proportion through a water inlet pipe and a strong brine inlet pipe, and the softened water and the strong brine are conveyed to a mixing pipeline to be mixed into dilute brine;

s2, mixed dilute brine: the PLC main controller controls the dilute brine valve to open, and dilute brine in the mixing pipeline flows through the pipeline mixer and is conveyed into the sodium hypochlorite electrolytic tank;

s3, preparing sodium hypochlorite liquid medicine: the PLC main controller controls an electrolytic power supply to supply power to a sodium hypochlorite electrolytic cell, and the sodium hypochlorite electrolytic cell electrolyzes dilute brine to prepare sodium hypochlorite liquid medicine;

s4, storing sodium hypochlorite liquid medicine: the PLC main controller controls the opening of the medicine outlet valve, and the sodium chlorate liquid medicine prepared in the sodium chlorate electrolytic cell is conveyed to the medicine storage tank through the medicine outlet pipe for storage;

the pickling step comprises the following steps:

x1, preparing a pickling solution: preparing a pickling solution in a pickling barrel, wherein the ratio of the pickling solution is 1: 2, water, wherein the hydrochloric acid concentration of the pickling solution is less than or equal to 3 percent;

x2, pickling scale: the PLC main controller controls the pickling pump and the pickling inlet valve to be opened and controls the automatic salt preparation pump, the water inlet valve and the dilute brine valve to be closed, the pickling pump is used for sucking pickling solution in the pickling barrel and pressurizing the pickling solution to be conveyed into the sodium hypochlorite electrolytic tank through the pickling pipe and the mixing pipe, and the pickling solution is used for cleaning scales in the sodium hypochlorite electrolytic tank;

x3 and acid washing liquid reflux: the PLC main controller controls the pickling return valve to be opened and controls the chemical outlet valve to be closed, and pickling solution in the sodium hypochlorite electrolytic tank flows back to the pickling barrel through the chemical outlet pipe and the pickling return pipe.

in the step S4, the temperature sensor is configured to detect a real-time water temperature of the sodium hypochlorite solution in the drug tube and send the real-time water temperature to the PLC main controller, the PLC main controller compares the real-time water temperature with a preset maximum water temperature threshold to determine whether the temperature in the sodium hypochlorite electrolytic cell is normal, and the PLC main controller constantly controls the cooling water device, the cooling water inlet valve, the cooling water outlet valve, and the stop valve to operate according to the comparison signal.

By adopting the technical scheme, the invention has the advantages of ingenious design and reasonable structure, water and strong brine can be automatically proportioned through the automatic salt proportioning pump to prepare equal-proportion dilute brine, the dilute brine can be automatically mixed through the mixing pipeline to uniformly mix the dilute brine, and then the dilute brine is conveyed into the sodium hypochlorite electrolytic tank through the mixing pipeline to be electrolyzed to prepare the sodium hypochlorite liquid medicine, so that the production effect of the sodium hypochlorite liquid medicine is improved, and the overall indexes of the prepared sodium hypochlorite liquid medicine are unified.

And the break-make through the steerable water cooling pipeline of switch module, when switch module opens, the demineralized water conservancy diversion in the inlet tube is to the water cooling pipeline in, the water cooling pipeline can cool off the demineralized water this moment, obtain the cooling demineralized water, then the cooling demineralized water rethread inlet tube, automatic salt pump and the mixed pipeline of joining in marriage are carried to the sodium hypochlorite electrolysis trough in, the realization cools off for the sodium hypochlorite electrolysis trough, and then reduce the temperature in the sodium hypochlorite electrolysis trough, guarantee that the sodium hypochlorite electrolysis trough is always under normal water temperature work, with the improvement production efficiency, reduce the energy consumption.

Can real-time detection in the liquid pipeline sodium hypochlorite liquid medicine real-time temperature through the temperature detection subassembly to but control system is according to this real-time water temperature automated control switch subassembly and water cooling pipeline work, and then reduce the energy consumption, improve the result of use.

Regular pickling is carried out through the operating time of this electrolysis production sodium hypochlorite generator of real-time detection, facilitates the use to automatic control pickling pipeline lets in the pickle to the sodium hypochlorite electrolysis trough, and the lime scale of acid liquor liquid in can being to the sodium hypochlorite electrolysis trough washs, facilitates the use, improves the result of use.

Moreover, the sodium hypochlorite liquid medicine production device is simple in overall structure, convenient to use, high in sodium hypochlorite liquid medicine production efficiency, high in automation degree, free of manual regulation and control of a user and improved in use effect.

The invention is further illustrated with reference to the following figures and examples.

Drawings

FIG. 1 is a schematic process flow diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an overall structure in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an automatic salt dispensing pump according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a mixing pipeline according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a water cooling pipeline according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a control system according to an embodiment of the present invention;

fig. 7 is a control schematic diagram of a water cooling pipeline in an embodiment of the invention.

In the figure: 1-sodium hypochlorite electrolytic tank; 2-automatic salt preparing pump; 21-a pump body; 22-softened water inlet; 23-a softened water outlet; 24-a strong brine inlet; 25-strong brine outlet; 26-a water inlet pipe; 261-water inlet pressure sensor; 262-a water inlet valve; 263-water inlet ball valve; 264-water inlet branch pipe; 265-branch inlet valve; 27-a strong brine inlet pipe; 28-strong brine outlet pipe; 29-a three-way joint; 3-a medicine storage tank; 31-air delivery pipe; 32-a hydrogen exhaust fan; 33-a hydrogen discharge port; 4-a main body housing; 5-a mixing line; 51-a mixing tube; 52-line mixer; 53-dilute brine electromagnetic flow meter; 54-a mechanical flow meter; a 55-dilute brine valve; 56-dilute brine sampling valve; 57-a sewage draining pipe; 58-a blowdown valve; 6-pickling the pipeline; 61-pickling the tube; 62-acid washing pump; 63-acid washing inlet valve; 64-acid washing back valve; 65-a pickling barrel; 66-acid washing water return pipe; 7-a control system; 71-PLC main controller; 72-control screen; 73-a timing unit; 8-a water softener; 81-cooling water device; 82-softened water inlet pipe; 83-softened water outlet pipe; 84-cooling water inlet valve; 85-cooling water outlet valve; 86-a stop valve; 9-concentrated salt tank; 91-overflow pipe; 10-a main sewer; 11-a medicine outlet pipe; 12-a medicine outlet valve; 13-a drug outlet sampling valve; 14-a hydrogen discharge pipe; 15-liquid medicine delivery pipe; 16-mechanical diaphragm pump; 17-back pressure valve; 18-an air damper; 19-a safety valve; 20-electrolytic power supply. 21-temperature sensor.

Detailed Description

Example (b): referring to fig. 1-7, a sodium hypochlorite generator comprises a sodium hypochlorite electrolytic tank 1, wherein an automatic salt blending pump 2 for automatically blending water and strong brine according to a specified proportion is arranged on one side of the sodium hypochlorite electrolytic tank 1, a liquid outlet end of the automatic salt blending pump 2 is communicated with a mixing pipeline 5, the other end of the mixing pipeline 5 is communicated with a liquid inlet end of the sodium hypochlorite electrolytic tank 1, a water inlet pipe 26 is connected to a water inlet end of the automatic salt blending pump 2, the other end of the water inlet pipe 26 is communicated with a liquid outlet of a water softener 8, a water cooling pipeline is connected in parallel to the water inlet pipe 26, a switch assembly for controlling the communication of the water cooling pipeline is arranged on the water cooling pipeline, a liquid outlet end of the sodium hypochlorite electrolytic tank 1 is communicated with a medicine storage tank 3 through a liquid outlet pipeline, a temperature detection assembly is connected in series to the liquid outlet pipeline, and the sodium hypochlorite generator is automatically controlled by a control system 7, the real-time water temperature detected by the temperature detection component is sent to the control system 7, and the control system 7 automatically controls the water cooling pipeline to work according to the real-time water temperature.

And the mixing pipeline 5 is communicated with an acid washing pipeline 6 for introducing acid washing liquid into the sodium hypochlorite electrolytic tank 1.

Design like this, the accessible is automatic to be joined in marriage salt pump 2 and is carried out automatic ratio to water and strong brine, and the preparation is the equal proportion dilute brine, and dilute brine can carry out the automation through mixing tube 5 and mix, makes dilute brine misce bene, and then dilute brine is carried to sodium hypochlorite electrolysis trough 1 in by mixing tube 5, and the sodium hypochlorite liquid medicine of production in the sodium hypochlorite electrolysis trough 1 passes through the drain pipe water conservancy diversion to storage tank 3 in.

After the incrustation is generated in the sodium hypochlorite electrolytic tank 1, the automatic pump 2 and the mixing pipeline 5 can be closed, the pickling solution is introduced into the sodium hypochlorite electrolytic tank 1 through the pickling pipeline 6, and the incrustation in the sodium hypochlorite electrolytic tank 1 can be cleaned by the pickling solution, so that the use is convenient.

The break-make through the steerable water cooling pipeline of switch module, when switch module opens, demineralized water conservancy diversion in the inlet tube 26 is to the water cooling pipeline in, the water cooling pipeline can cool off the demineralized water this moment, obtain the cooling demineralized water, then cooling demineralized water rethread inlet tube 26, automatic salt pump 2 and mixing pipeline 5 are joined in marriage and carry to sodium hypochlorite electrolysis trough 1 in, the realization cools off for sodium hypochlorite electrolysis trough 1, and then reduce the temperature in sodium hypochlorite electrolysis trough 1, guarantee that sodium hypochlorite electrolysis trough 1 always works at normal water temperature, with the improvement production efficiency, reduce the energy consumption.

And can detect the real-time temperature of sodium hypochlorite liquid medicine in the liquid pipeline in real time through the temperature detection subassembly to but control system according to this real-time temperature automated control switch subassembly and water cooling pipeline work, and then reduce the energy consumption, improve the result of use.

The sodium hypochlorite generator also comprises a main body shell 4, and the sodium hypochlorite electrolytic tank 1, the automatic pump 2, the mixing pipeline 5, the liquid outlet pipeline and the acid washing pipeline 6 are all arranged in the main body shell 4.

Automatic join in marriage salt pump 2 and include the pump body 21, laid demineralized water inlet 22, demineralized water delivery port 23, strong brine water inlet 24 and strong brine delivery port 25 on the pump body 21, demineralized water inlet 22 and the liquid outlet intercommunication of inlet tube 26, demineralized water delivery port 23 and the water inlet intercommunication of hybrid line 5.

Strong brine water inlet 24 passes through strong brine inlet tube 27 and strong brine jar 9 intercommunication, strong brine jar 9 lays in one side of main body cover 4, the intercommunication has strong brine drain pipe 28 on the strong brine delivery port 25, strong brine drain pipe 28's the other end passes through three way connection 29 and mixed pipeline 5 intercommunication.

Design like this, automatically, join in marriage the demineralized water that salt pump 2 work accessible inlet tube 26 absorbs in the water softener 8, then carry the demineralized water to mixing tube 5 in through demineralized water delivery port 23, automatically, join in marriage salt pump 2 and pass through the strong brine that strong brine inlet tube 27 absorbed in the strong brine jar 9, then carry the strong brine to mixing tube 5 in through strong brine delivery port 25 and strong brine drain pipe 28 and three way connection 29 to join in marriage salt pump 2 work automatically and can absorb demineralized water and strong brine according to the equal proportion, and then can match out the equal proportion's weak brine.

A water inlet pressure sensor 261, a water inlet valve 262 and a water inlet ball valve 263 are sequentially arranged on the water inlet pipe 26 in series, and the water inlet pressure sensor 261 is used for detecting the water pressure in the water inlet pipe 26 at any time.

The water inlet valve 262 is an electromagnetic valve, and the water inlet valve 262 automatically controls the on-off of the water inlet pipe 26.

The water inlet ball valve 263 is used for mechanically controlling the on-off of the water inlet pipe 26.

The water softener 8 is disposed at one side of the main body case 4.

The liquid outlet end of the water softener 8 is communicated with a water inlet pipe 26, softened water treated in the water softener 8 can enter the water inlet pipe 26, and the liquid inlet end of the water softener 8 is communicated with a municipal water supply pipe through a communicating pipe.

Tap water in the municipal water supply pipe can be conveyed into the water softener 8 under the state of self pressure, and the water softener 8 is used for treating the tap water to prepare softened water.

The drain outlet of the water softener 8 is communicated with a drain main pipe 10 through a drain pipe.

A water inlet branch pipe 264 is communicated with the water inlet pipe 26, the other end of the water inlet branch pipe 264 is communicated with the concentrated salt tank 9, and a branch water inlet valve 265 for controlling the on-off of the water inlet branch pipe 264 is connected to the water inlet branch pipe 264 in series.

By the design, the on-off of the water inlet branch pipe 264 can be controlled by the branch water inlet valve 265, and then when the strong brine is required to be prepared by introducing softened water into the strong brine tank 9, the branch water inlet valve 265 can be opened, and the softened water in the water inlet pipe 26 is conveyed into the strong brine tank 9 through the water inlet branch pipe 264 and is used for preparing the strong brine.

The overflow port of the concentrated salt tank 9 is communicated with the sewage main pipe 10 through an overflow pipeline 91, and redundant concentrated salt water in the concentrated salt tank 9 is discharged into the sewage main pipe 10 through the overflow port and the overflow pipeline 91.

The water cooling pipeline comprises a cooling water device 81, the water inlet end of the cooling water device 81 is communicated with the water inlet pipe 26 through a softened water inlet pipe 82, and the water outlet end of the cooling water device 81 is communicated with the downstream position of the water inlet pipe 26 through a softened water outlet pipe 83.

By this design, the softened water inlet pipe 82 can be used to guide the softened water in the water inlet pipe 26 into the cooling water device 81, at this time, the cooling water device 81 can cool the softened water, and the cooled softened water after cooling is conveyed into the water inlet pipe 26 through the softened water outlet pipe 83.

It is thus seen that the cooling water device 81 can cool the softened water flowing through the water inlet pipe 82 on-line, thereby improving the use effect.

The switch assembly comprises a cooling water inlet valve 84, a cooling water outlet valve 85 and a stop valve 86, wherein the cooling water inlet valve 84 is connected in series with the softened water inlet pipe 82, the cooling water outlet valve 85 is connected in series with the softened water outlet pipe 83, and the stop valve 86 is connected in series with the water inlet pipe 26 and is positioned between the softened water inlet pipe 82 and the softened water outlet pipe 83.

The cooling water inlet valve 84 is an electromagnetic valve, and the cooling water inlet valve 84 is used for automatically controlling the on-off of the softened water inlet pipe 82.

The cooling water outlet valve 85 is an electromagnetic valve, and the cooling water outlet valve 85 is used for automatically controlling the on-off of the softened water outlet pipe 83.

The stop valve 86 is an electromagnetic valve, and the stop valve 86 is used for automatically controlling the on-off of the water inlet pipe 26.

So designed, when the stop valve 86 is opened and the cooling water inlet valve 84 and the cooling water outlet valve 85 are closed, the softened water output by the water softener 8 is delivered into the automatic salt dispensing pump 2 through the water inlet pipe 26.

When the stop valve 86 is closed and the cooling water inlet valve 84 and the cooling water outlet valve 85 are opened, the softened water output by the water softener 8 is conveyed into the cooling water device 81 through the water inlet pipe 26 and the softened water inlet pipe 82, the cooling water device 81 is started at the moment to cool the softened water, and then the cooled softened water is conveyed to the downstream position of the water inlet pipe 26 through the softened water outlet pipe 83 and then conveyed into the automatic salt distribution pump 2 through the water inlet pipe 26.

The mixing pipeline 5 comprises a mixing pipe 51, a liquid inlet of the mixing pipe 51 is communicated with a liquid outlet of the automatic salt blending pump 2, and a liquid outlet of the mixing pipe 51 is communicated with a liquid inlet of the sodium hypochlorite electrolytic tank 1.

The mixing pipe 51 is sequentially provided with a pipeline mixer 52, a dilute brine electromagnetic flow meter 53, a mechanical flow meter 54 and a dilute brine valve 55 at intervals along the flow direction of dilute brine in the mixing pipe 51.

The dilute brine output by the automatic salt-blending pump 2 is guided into the sodium hypochlorite electrolytic tank 1 through a mixing pipe 51. Is convenient to use.

The line mixer 52 is installed in series on the mixing pipe 51, and the line mixer 52 is used for uniformly mixing the dilute brine flowing through the mixing pipe 51.

The dilute brine water electromagnetic flow meter 53 is installed on the mixing pipe 51 in series, and the dilute brine water electromagnetic flow meter 53 is used for detecting the real-time flow of dilute brine in the mixing pipe 51 at any time.

The mechanical flowmeter 54 is fixedly installed on the main body shell 4, and the mechanical flowmeter 54 is used for detecting the real-time flow of the dilute brine in the mixing pipe 51, so that a user can visually check the real-time flow of the dilute brine.

The dilute brine valve 55 is installed in series on the mixing pipe 51, and the dilute brine valve 55 is used to control the on/off of the mixing pipe 51.

A dilute brine sampling pipe is connected in series between the pipeline mixer 52 and the dilute brine electromagnetic flowmeter 53 on the mixing pipe 51, and one end of the dilute brine sampling pipe, which is far away from the mixing pipe 51, is connected with a dilute brine sampling valve 56.

By the design, when the dilute brine sampling valve 56 is opened, dilute brine circulating in the mixing pipe 51 can be sampled at the position of the dilute brine sampling valve 56, and the use is convenient.

A drain pipe 57 is communicated with the mixing pipe 51 at the downstream position of the dilute brine valve 55, and the other end of the drain pipe 57 is communicated with the drain main pipe 10.

A drain valve 58 is connected in series on the drain pipe 57, and the drain valve 58 is used for controlling the on-off of the drain pipe 57.

By the design, when sewage needs to be discharged, the sewage discharge valve 58 can be opened, and at the moment, sewage in the mixing pipe 51 and the sodium hypochlorite electrolytic tank 1 is discharged through the sewage discharge pipe 57, so that the use is convenient.

The pickling pipeline 6 comprises a pickling pipe 61, the liquid outlet end of the pickling pipe 61 is communicated with the mixing pipe 51, and the liquid outlet end of the pickling pipe 61 is positioned at the downstream position of the dilute brine valve 55 on the mixing pipe 51.

An acid inlet valve 63 is connected in series on the acid washing pipe 61 at a position close to the mixing pipe 51, and the acid inlet valve 63 is used for controlling the on-off of the acid washing pipe 61.

The pickling inlet valve 63 is an electromagnetic valve, and the pickling inlet valve 63 is installed on the pickling pipe 61 in series, so that the pickling pipe 61 can be automatically switched on and off through the pickling inlet valve 63.

The liquid inlet end of the pickling pipe 61 is communicated with a pickling pump 62, and the other end of the pickling pump 62 is communicated with a pickling barrel 65.

The pickling pump 62 is operated to suck the pickling solution in the pickling tub 65 and to pressure-feed the pickling solution into the pickling pipe 61.

The pickling barrel 65 is internally provided with a pickling solution, the pickling solution is prepared by mixing citric acid and water, and the mixing ratio of the citric acid to the water is as follows: 1 part of citric acid: and 2, water, wherein the hydrochloric acid concentration of the pickling solution is not more than 3%.

In this way, when the pickling solution needs to be introduced into the sodium hypochlorite electrolytic cell 1 to clean the scale, the dilute brine valve 55 is first closed, the dilute brine valve 55 is closed to cut off the flow of the mixing pipe 51, and the dilute brine valve 55 is closed to prevent the pickling solution fed from the pickling line 6 into the mixing pipe 51 from flowing back into the automatic salt dispensing pump 2.

Then, the pickling inlet valve 63 and the pickling pump 62 are opened, the pickling pump 62 works to suck the pickling solution in the pickling barrel 65 and pressurize and convey the pickling solution into the pickling pipe 61, then the pickling solution in the pickling pipe 61 is conveyed into the sodium hypochlorite electrolytic tank 1 through the mixing pipe 51, so that the pickling solution is introduced into the sodium hypochlorite electrolytic tank 1, and at the moment, the pickling solution can be used for cleaning scales in the sodium hypochlorite electrolytic tank 1.

The liquid outlet pipeline comprises a medicine outlet pipe 11, one end of the medicine outlet pipe 11 is communicated with the liquid outlet end of the sodium hypochlorite electrolytic tank 1, and the other end of the medicine outlet pipe 11 is communicated with the medicine storage tank 3.

The medicine outlet pipe 11 is connected in series with a medicine outlet valve 12, and the medicine outlet valve 12 is used for controlling the on-off of the medicine outlet pipe 11.

The medicine outlet valve 12 is an electromagnetic valve, and the medicine outlet valve 12 is installed on the medicine outlet pipe 11 in series, so that the on-off of the medicine outlet pipe 11 can be automatically controlled through the medicine outlet valve 12.

By the design, when the medicine outlet valve 12 is opened, the medicine outlet pipe 11 can be communicated, and at the moment, the sodium hypochlorite liquid medicine prepared in the sodium hypochlorite electrolytic cell 1 is conveyed to the medicine storage tank 3 through the medicine outlet pipe 11 for storage.

Go out the intercommunication and be provided with out the medicine sampling tube on the pencil 11, the one end that goes out the pencil 11 is kept away from to go out the medicine sampling tube is connected with out medicine sample valve 13.

Design like this, when opening out medicine sampling valve 13, can be in the position department of a medicine sampling valve 13, take a sample to the liquid medicine that flows in the play pencil 11, facilitate the use.

The medicine outlet pipe 11 is communicated with an acid washing water return pipe 66 at the upstream position of the medicine outlet valve 12, and the other end of the acid washing water return pipe 66 is communicated with an acid washing barrel 65.

The pickling return pipe 66 is connected in series with a pickling return valve 64, and the pickling return valve 64 is used for controlling the on-off of the pickling return pipe 66.

The pickling return valve 64 is an electromagnetic valve, the pickling return valve 64 is installed on the pickling return pipe 66 in series, and then the communication of the pickling return pipe 66 can be automatically controlled through the pickling return valve 64, so that the use is convenient.

By the design, when acid washing is conducted in the sodium hypochlorite electrolytic tank 1 through the acid washing pipeline 6, the medicine outlet valve 12 can be closed and the acid washing return valve 64 can be opened, at the moment, the medicine outlet pipe 11 is cut off through the medicine outlet valve 12, and then acid washing liquid output from the sodium hypochlorite electrolytic tank 1 is prevented from entering the medicine storage tank 3;

and the pickling solution output from the sodium hypochlorite electrolytic tank 1 flows back to the pickling barrel 65 through the chemical outlet pipe 11 and the pickling return pipe 66, so that the use is convenient.

The temperature detection assembly comprises a temperature sensor 21, and the temperature sensor 21 is installed on the medicine outlet pipe 11 in series and is close to the liquid outlet of the sodium hypochlorite electrolytic tank 1.

The temperature sensor 21 is used for constantly detecting the real-time water temperature of the sodium hypochlorite liquid medicine in the medicine tube 11.

A hydrogen discharge pipe 14 is communicated above the liquid outlet end of the sodium hypochlorite electrolytic tank 1, and hydrogen generated in the sodium hypochlorite electrolytic tank 1 is discharged through the hydrogen discharge pipe 14, so that the use is convenient.

The hydrogen discharging pipeline for discharging hydrogen in the medicine storage tank 3 is arranged on the medicine storage tank 3 and comprises a wind conveying pipe 31, one end of the wind conveying pipe 31 is communicated with the inner cavity of the medicine storage tank 3, the other end of the wind conveying pipe 31 is communicated with the air outlet of a hydrogen discharging fan 32, and the air inlet of the hydrogen discharging fan 32 is communicated with the external air.

The medicine storage tank 3 is provided with a hydrogen discharge port 33.

The work of hydrogen discharge fan 32 is through ventilating in the defeated tuber pipe 31 is to medicine storage tank 3, and this wind can blow the hydrogen in the medicine storage tank 3 and discharge through hydrogen discharge mouth 33, and then can discharge the hydrogen in the medicine storage tank 3 through this hydrogen discharge pipeline, facilitates the use.

Fixed mounting has the liquid medicine that is used for exporting the sodium hypochlorite liquid medicine to throw and throws the pipeline in main body cover 4, the liquid medicine is thrown the feed liquor end and the 3 intercommunications of medicine storage tank that throw the pipeline, the liquid medicine is thrown the play medicine end and the peripheral hardware liquid medicine conveying pipeline intercommunication of pipeline.

The liquid medicine feeding pipeline is used for sucking sodium hypochlorite liquid medicine in the medicine storage tank 3 and then pressurizing and conveying the sodium hypochlorite liquid medicine to an external liquid medicine conveying pipeline, and the external liquid medicine conveying pipeline is used for guiding the sodium hypochlorite liquid medicine to be fed to a position to be used.

The liquid medicine feeding pipeline comprises a liquid medicine conveying pipe 15, the liquid inlet end of the liquid medicine conveying pipe 15 is communicated with the medicine outlet of the medicine storage tank 3, and the liquid outlet end of the liquid medicine conveying pipe 15 is communicated with an external liquid medicine conveying pipeline.

And a mechanical diaphragm pump 16 is connected in series on the liquid medicine conveying pipe 15, and the mechanical diaphragm pump 16 is used for sucking sodium hypochlorite liquid medicine in the medicine storage tank 3 and conveying the sodium hypochlorite liquid medicine under pressure.

An air damper 18 is communicated with a liquid outlet of the mechanical diaphragm pump 16 on the liquid medicine conveying pipe 15, and a back pressure valve 17 is connected in series with the liquid medicine conveying pipe 15 at the downstream position of the mechanical diaphragm pump 16.

Design like this, but backpressure valve 17 can place the sodium hypochlorite liquid medicine backward flow in the liquid medicine conveyer pipe 15 to the liquid outlet that can keep mechanical diaphragm pump 16 has a constant pressure, facilitates the use.

The backpressure valve 17 is matched with the air damper 18, so that the damage of a water cone to a liquid medicine adding pipeline can be reduced, the peak value of flow velocity fluctuation is reduced, the liquid medicine adding pipeline, an elbow and a joint are protected from being impacted by pressure fluctuation, and the using effect is improved.

The liquid medicine delivery pipe 15 is communicated with a safety valve 19, and the safety valve 19 and the mechanical diaphragm pump 16 are arranged in parallel.

The safety valve 19 can protect the liquid medicine feeding pipeline, and when the pressure in the liquid medicine feeding pipeline is greater than the starting pressure of the safety valve 19, the safety valve 19 is opened to automatically release pressure, so that the safety of the liquid medicine feeding pipeline is guaranteed.

The sodium hypochlorite electrolytic tank 1 is powered by an electrolytic power supply 20, and the positive electrode end and the negative electrode end of the electrolytic power supply 20 are respectively and electrically connected with the corresponding positive electrode end and the corresponding negative electrode end of the sodium hypochlorite electrolytic tank 1.

The current output from the electrolysis power supply 20 is 0 to 200A.

The electrolytic power supply 20 supplies power to the sodium hypochlorite electrolytic tank 1, and at this time, the sodium hypochlorite electrolytic tank 1 electrolyzes the electrolyte mixture in the sodium hypochlorite electrolytic tank 1 to obtain sodium hypochlorite liquid medicine.

The electrolysis power supply 20 is fixedly arranged in the main body shell 4.

The control system 7 comprises a PLC main controller 71, the input end and the output end of the PLC main controller 71 are electrically connected with a control screen 72 in a bidirectional mode, and the control screen 72 is fixedly installed on the main body shell 4.

The control screen 72 can issue commands to control the PLC master controller 71.

The control ends of the dilute brine valve 55, the medicine outlet valve 12, the blowdown valve 58, the water inlet valve 262, the branch water inlet valve 265, the pickling inlet valve 63 and the pickling return valve 64 are respectively and electrically connected with the output end of the PLC main controller 71, and the PLC main controller 71 outputs control signals for respectively and independently controlling the dilute brine valve 55, the medicine outlet valve 12, the blowdown valve 58, the water inlet valve 262, the branch water inlet valve 265, the pickling inlet valve 63 and the pickling return valve 64 to be opened and closed.

The PLC main controller 71 sends a control signal to control the opening or closing of the dilute brine valve 55, and the control signal is used to control the on/off of the mixing pipe 5 through the dilute brine valve 55.

The PLC main controller 71 sends out a control signal to control the opening or closing of the medicine outlet valve 12, and the medicine outlet valve 12 is used for controlling the on-off of the medicine outlet pipe 11.

The PLC main controller 71 sends out a control signal to control the on-off of the blow-off pipe 57 through the blow-off valve 58 when the blow-off valve 58 is controlled to be opened or closed.

The PLC main controller 71 sends out a control signal to control the on-off of the water inlet pipe 26 through the water inlet valve 262 when the water inlet valve 262 is opened or closed.

The PLC main controller 71 sends out a control signal to control the branch water inlet valve 265 to be opened or closed, and the branch water inlet valve 265 is used for controlling the on-off of the water inlet branch pipe 264.

And the PLC main controller 71 sends out a control signal to control the pickling inlet valve 63 to be opened or closed, and the pickling inlet valve 63 is used for controlling the on-off of the pickling pipeline 6.

And when the PLC main controller 71 sends out a control signal to control the acid washing return valve 64 to be opened or closed, the PLC main controller is used for controlling the on-off of the acid washing return pipe 66 through the acid washing return valve 64.

The control ends of the water softener 8 and the electrolysis power supply 20 are respectively electrically connected with the output end of the PLC main controller 71, and the PLC main controller 71 outputs control signals for respectively and independently controlling the water softener 8 and the electrolysis power supply 20 to work.

The control ends of the pickling pump 62, the automatic salt preparation pump 2, the mechanical diaphragm pump 16 and the hydrogen exhaust fan 32 are respectively electrically connected with the output end of the PLC main controller 71, and the PLC main controller 71 outputs control signals for respectively and independently controlling the working of the pickling pump 62, the automatic salt preparation pump 2, the mechanical diaphragm pump 16 and the hydrogen exhaust fan 32.

The PLC main controller 71 sends out a control signal to control the water softener 8 to work, and the water softener 8 works to prepare softened water.

The PLC main controller 71 sends out a control signal to control the electrolysis power supply 20 to work, and the electrolysis power supply 20 works to supply power for the sodium hypochlorite electrolytic tank 1.

The PLC main controller 71 sends out a control signal to control the work of the pickling pump 62, and the work of the pickling pump 62 is used for sucking the pickling solution in the pickling barrel 65 and pressurizing and conveying the pickling solution to the pickling pipeline 6.

The PLC main controller 71 sends out a control signal to control the automatic salt preparation pump 2 to work, and the automatic salt preparation pump 2 works to prepare dilute brine by proportioning softened water and strong brine in equal proportion and pressurize the dilute brine and convey the dilute brine to the sodium hypochlorite electrolytic tank 1 through the mixing pipeline 5.

The PLC main controller 71 sends out a control signal to control the mechanical diaphragm pump 16 to work, and the mechanical diaphragm pump 16 works to suck the sodium hypochlorite liquid medicine in the medicine storage tank 3 and pressurize and convey the sodium hypochlorite liquid medicine.

The PLC main controller 71 sends out a control signal to control the hydrogen exhaust fan 32 to work, the hydrogen exhaust fan 32 works to introduce air into the medicine storage tank 3, and the air blows hydrogen in the medicine storage tank 3 and is exhausted through the hydrogen exhaust port 33.

The output ends of the dilute brine electromagnetic flow meter 53 and the water inlet pressure sensor 261 are respectively electrically connected with the input end of the PLC main controller 71.

The dilute brine electromagnetic flow meter 53 is used for constantly detecting the real-time flow of dilute brine in the mixing pipeline 5 and constantly sending the real-time flow to the PLC main controller 71.

The water inlet pressure sensor 261 is configured to constantly detect a real-time water inlet pressure of water flowing through the water inlet pipe 26, and send the real-time water inlet pressure to the PLC main controller 71.

A minimum pressure preset threshold value is arranged in the PLC main controller 71, and after the real-time water inlet pressure detected by the water inlet pressure sensor 261 is sent to the PLC main controller 71, the PLC main controller 71 compares the real-time water inlet pressure with the minimum pressure preset threshold value.

When the real-time water inlet pressure is smaller than the preset threshold value of the minimum pressure, the PLC main controller 71 controls the sodium hypochlorite generator to stop working.

The output end and the input end of the PLC main controller 71 are bidirectionally and electrically connected with a timing unit 73, the timing unit 73 is used for counting the working time of the automatic salt distribution pump 2, and then the PLC main controller 71 regularly controls the work of the pickling pipeline 6 according to the working time to pickle the sodium hypochlorite electrolytic tank 1.

When the timer 73 counts a set time, the timer 73 sends a feedback signal to the PLC main controller 71, and at this time, the PLC main controller 71 determines that scale has been generated in the sodium hypochlorite electrolytic bath 1 and needs pickling.

The control ends of the cooling water device 81, the cooling water inlet valve 84, the cooling water outlet valve 85 and the stop valve 86 are respectively and electrically connected with the output end of the PLC main controller 71, and the PLC main controller 71 outputs control signals for respectively and independently controlling the cooling water device 81, the cooling water inlet valve 84, the cooling water outlet valve 85 and the stop valve 86 to work.

The output end of the temperature sensor 21 is electrically connected with the output end and the input end of the PLC main controller 71, and the real-time water temperature of the sodium hypochlorite liquid medicine in the medicine outlet pipe 11 detected by the temperature sensor 21 is sent to the PLC main controller 71.

A maximum water temperature preset threshold value is arranged in the PLC main controller 71, and after the temperature sensor 21 detects real-time water temperature and sends the real-time water temperature to the PLC main controller 71, the PLC main controller 71 compares the real-time water temperature with the maximum water temperature preset threshold value.

When the real-time water temperature is lower than the maximum water temperature preset threshold, the temperature in the sodium hypochlorite electrolytic tank 1 is normal at the moment, the PLC main controller 71 sends out control signals to control the stop valve 86 to be opened and the cooling water inlet valve 84 and the cooling water outlet valve 85 to be closed, and softened water output by the water softener 8 is conveyed into the automatic salt distribution pump 2 through the water inlet pipe 26 at the moment.

When the real-time water temperature is greater than the maximum water temperature preset threshold, the temperature in the sodium hypochlorite electrolytic tank 1 is over high, the PLC main controller 71 sends out control signals to control the cooling water device 81 to be started, the stop valve 86 to be closed, the cooling water inlet valve 84 and the cooling water outlet valve 85 to be opened, softened water output by the water softener 8 is conveyed into the cooling water device 81 through the water inlet pipe 26 and the softened water inlet pipe 82, the softened water can be cooled through the cooling water device 81, then the cooled softened water is conveyed to the downstream position of the water inlet pipe 26 through the softened water outlet pipe 83, and then the softened water is conveyed into the automatic salt distribution pump 2 through the water inlet pipe 26.

Automatic join in marriage salt pump 2 and mix this demineralized water with strong brine this moment and prepare and be the dilute brine and carry to sodium hypochlorite electrolysis trough 1 in through mixing tube 5, this dilute brine can cool off sodium hypochlorite electrolysis trough 1 this moment, and then reduce the temperature of water in the sodium hypochlorite electrolysis trough 1, guarantee that sodium hypochlorite electrolysis trough 1 always works at normal water temperature to improve production efficiency.

And the on-off of the water cooling pipeline can be automatically switched through the cooling water inlet valve 84, the cooling water outlet valve 85 and the stop valve 86, so that the energy consumption can be reduced, and the use effect can be improved.

The invention also provides a production method of sodium hypochlorite, which comprises a sodium hypochlorite production step, an acid washing step and a sodium hypochlorite adding step based on the sodium hypochlorite generator.

The sodium hypochlorite production step comprises:

s1, proportioning dilute brine in equal proportion: firstly, the proportioning proportion of the automatic salt preparation pump 2 is adjusted, then the PLC main controller 71 controls the automatic salt preparation pump 2 and the water inlet valve 262 to be opened, and controls the pickling pump 62, the pickling inlet valve 63 and the pickling return valve 64 to be closed, at the moment, the automatic salt preparation pump 2 respectively sucks softened water and strong brine in proportion through the water inlet pipe 26 and the strong brine inlet pipe 27, and conveys the softened water and the strong brine to the mixing pipeline 5 to be mixed into dilute brine.

In step S1, automatically, join in marriage the demineralized water that salt pump 2 work accessible inlet tube 26 absorbed in the water softener 8, then carry the demineralized water to the hybrid tube way 5 in through demineralized water delivery port 23, automatically, join in marriage salt pump 2 and pass through the strong brine inlet tube 27 and absorb the strong brine in the strong brine jar 9, then carry the strong brine to the hybrid tube way 5 in through strong brine delivery port 25 and strong brine drain 28 and three way connection 29.

In step S1, water inlet pressure sensor 261 on water inlet pipe 26 is used for constantly detecting the real-time water inlet pressure of the water circulation in water inlet pipe 26, and sends the real-time water inlet pressure to PLC main controller 71, and at this moment, PLC main controller 71 compares the real-time water inlet pressure with the minimum pressure preset threshold, and when the real-time water inlet pressure is smaller than the minimum pressure preset threshold, PLC main controller 71 controls the sodium hypochlorite generator to stop working.

S2, mixed dilute brine: the PLC main controller 71 controls the dilute brine valve 55 to open, and at the moment, the dilute brine in the mixing pipeline 5 flows through the pipeline mixer 52, the dilute brine electromagnetic flow meter 53, the mechanical flow meter 54 and the dilute brine valve 55 and is conveyed into the sodium hypochlorite electrolytic cell 1.

S3, preparing sodium hypochlorite liquid medicine: the PLC main controller 71 controls the electrolytic power supply 20 to supply power to the sodium hypochlorite electrolytic tank 1, and the sodium hypochlorite electrolytic tank 1 electrolyzes dilute saline water to prepare sodium hypochlorite liquid medicine.

The current output from the electrolytic power supply 20 in step S3 is 0A to 200A.

The hydrogen gas generated when the dilute brine is electrolyzed in the sodium chlorate electrolytic cell 1 in step S3 is discharged through the hydrogen discharge pipe 14.

S4, storing sodium hypochlorite liquid medicine: the PLC main controller 71 controls the medicine outlet valve 12 to be opened, and the sodium chlorate liquid medicine prepared in the sodium chlorate electrolytic cell 1 is conveyed to the medicine storage tank 3 through the medicine outlet pipe 11 to be stored.

In step S4, when the hydrogen in the drug storage tank 3 needs to be discharged, the PLC main controller 71 controls the hydrogen discharge fan 32 to operate, at this time, the hydrogen discharge fan 32 blows air into the drug storage tank 3 through the air duct 31, and the air can blow the hydrogen in the drug storage tank 3 and is discharged through the hydrogen discharge port 33, so that the hydrogen in the drug storage tank 3 is discharged, and the use is convenient.

In step S4, the temperature sensor 21 is used to detect the real-time water temperature of the sodium hypochlorite chemical solution in the chemical tube 11 and send the real-time water temperature to the PLC main controller 71, the PLC main controller 71 compares the real-time water temperature with a maximum water temperature preset threshold to determine whether the temperature in the sodium hypochlorite electrolytic tank 1 is normal, and the PLC main controller 71 controls the operation of the cooling water device 81, the cooling water inlet valve 84, the cooling water outlet valve 85, and the stop valve 86 at any time according to the comparison signal.

When the real-time water temperature is lower than the maximum water temperature preset threshold, the PLC main controller 71 sends out control signals to control the stop valve 86 to be opened and the cooling water inlet valve 84 and the cooling water outlet valve 85 to be closed, and at the moment, softened water output by the water softener 8 is conveyed into the automatic salt distribution pump 2 through the water inlet pipe 26.

When the real-time water temperature is greater than the maximum water temperature preset threshold, the PLC main controller 71 sends out control signals to control the cooling water device 81 to be started, the stop valve 86 to be closed, and the cooling water inlet valve 84 and the cooling water outlet valve 85 to be opened, at the moment, softened water output by the water softener 8 is conveyed into the cooling water device 81 through the water inlet pipe 26 and the softened water inlet pipe 82, the softened water can be cooled through the cooling water device 81, and then the cooled softened water is conveyed to the downstream position of the water inlet pipe 26 through the softened water outlet pipe 83 and then conveyed into the automatic salt distribution pump 2 through the water inlet pipe 26;

The pickling step comprises the following steps:

x1, preparing a pickling solution: preparing a pickling solution in a pickling barrel 65, wherein the pickling solution is prepared by mixing citric acid and water according to the following mixing ratio: 1: 2; the hydrochloric acid concentration of the pickling solution is less than or equal to 3 percent.

In the step X1, the PLC main controller 71 controls the branch water inlet valve 265 to open, so that the water inlet branch 264 is communicated with the water inlet pipe 26, the water is supplied into the pickling tank 65 through the water inlet pipe 26 and the water inlet branch 264, and the PLC main controller 71 controls the on/off time interval of the branch water inlet valve 265 to control the water supply amount.

When the acid washing solution is prepared in the step X1, the citric acid water is transferred into the acid washing barrel 65 by using the acid washing pump 62.

X2, pickling scale: the PLC main controller 71 controls the pickling pump 62 and the pickling inlet valve 63 to be opened, and controls the automatic salt preparation pump 2, the inlet valve 262 and the dilute brine valve 55 to be closed, at the moment, the pickling pump 62 is used for sucking the pickling solution in the pickling barrel 65 and pressurizing the pickling solution to be conveyed into the sodium hypochlorite electrolytic tank 1 through the pickling pipe 61 and the mixing pipe 51, and at the moment, the pickling solution is used for cleaning scales in the sodium hypochlorite electrolytic tank 1.

In the step X2, the PLC main controller 71 determines whether or not the pickling line scale step is executed based on a feedback signal from the timer 73.

The timing unit 73 is used for timing the working time of the automatic salt blending pump 2, when the timing of the timing unit 73 reaches the set time, the timing unit 73 sends a feedback signal to the PLC main controller 71, at the moment, the PLC main controller 71 judges that the scale is generated in the sodium hypochlorite electrolytic tank 1, and sends a control signal for controlling the execution of the acid pickling scale step.

X3 and acid washing liquid reflux: the PLC main controller 71 controls the acid washing return valve 64 to open and controls the chemical outlet valve 12 to close, and at the moment, the acid washing liquid in the sodium hypochlorite electrolytic tank 1 flows back to the acid washing barrel 65 through the chemical outlet pipe 11 and the acid washing return pipe 66.

The sodium hypochlorite adding step comprises:

t1, outputting sodium hypochlorite liquid: the PLC main controller 71 controls the mechanical diaphragm pump 16 to work, and at the moment, the mechanical diaphragm pump 16 sucks the sodium hypochlorite liquid medicine in the medicine storage tank 3 through the liquid medicine conveying pipe 15 and conveys the sodium hypochlorite liquid medicine in a pressurizing mode to realize adding of the sodium hypochlorite liquid medicine.

The sodium hypochlorite generator and the production method for producing sodium hypochlorite by the electrolysis method can be used for proportioning strong brine and softened water in equal proportion on line to obtain equal proportion dilute brine, and the dilute brine is electrolyzed by the sodium hypochlorite electrolytic tank 1 to prepare sodium hypochlorite liquid medicine, so that the indexes of the produced sodium hypochlorite liquid medicine are kept uniform, and the production efficiency and the production effect can be improved.

It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.

Claims

1. The utility model provides a sodium hypochlorite generator, includes sodium hypochlorite electrolysis trough (1), and sodium hypochlorite electrolysis trough (1) is supplied power by electrolysis power supply (20), its characterized in that: one side of sodium hypochlorite electrolysis trough (1) is provided with automatic salt pump (2) of joining in marriage, it has mixed pipeline (5) to communicate between the liquid outlet end of automatic salt pump (2) of joining in marriage and the inlet end of sodium hypochlorite electrolysis trough (1), even there is inlet tube (26) on the water inlet end of automatic salt pump (2) of joining in marriage, the other end of inlet tube (26) and the liquid outlet intercommunication of water softener (8), it has the water cooling pipeline to go up the parallel connection on inlet tube (26), the water cooling pipeline sets up the switch module who is used for controlling the water cooling pipeline intercommunication on the water cooling pipeline, the liquid outlet end of sodium hypochlorite electrolysis trough (1) is through going out liquid pipeline and storage medicinal cupping (3) intercommunication, it has the temperature detection subassembly to establish ties on the outlet pipe, the sodium hypochlorite generator carries out automated control by control system (7), the real-time temperature that the temperature detection subassembly detected and obtains sends to in control system (7), control system (7) are according to this real-time temperature automated control water cooling pipeline work.

2. A hypochlorite generator as claimed in claim 1, wherein: a water inlet pressure sensor (261), a water inlet valve (262) and a water inlet ball valve (263) are sequentially arranged on the water inlet pipe (26) in series, the water inlet pressure sensor (261) is used for constantly detecting the water pressure in the water inlet pipe (26), and the water inlet valve (262) automatically controls the on-off of the water inlet pipe (26); the water cooling pipeline comprises a cooling water device (81), the water inlet end of the cooling water device (81) is communicated with the water inlet pipe (26) through a softened water inlet pipe (82), and the water outlet end of the cooling water device (81) is communicated with the downstream position of the water inlet pipe (26) through a softened water outlet pipe (83).

3. A hypochlorite generator as claimed in claim 2, wherein: the switch assembly comprises a cooling water inlet valve (84), a cooling water outlet valve (85) and a stop valve (86), wherein the cooling water inlet valve (84) is connected in series with the softened water inlet pipe (82), the cooling water outlet valve (85) is connected in series with the softened water outlet pipe (83), and the stop valve (86) is connected in series with the water inlet pipe (26) and is positioned between the softened water inlet pipe (82) and the softened water outlet pipe (83).

4. A hypochlorite generator as claimed in claim 3, wherein: the drain pipe is including going out pencil (11), the one end of going out pencil (11) and the play liquid end intercommunication of sodium hypochlorite electrolysis trough (1), the other end and medicine storage tank (3) intercommunication of going out pencil (11), it has out medicine valve (12) to establish ties on play pencil (11), it has pickling wet return (66) to go out the upper reaches position intercommunication that lies in medicine valve (12) on pencil (11), the other end and pickling bucket (65) intercommunication of pickling wet return (66), it has pickling check return (64) to establish ties on pickling wet return (66), temperature detection subassembly includes temperature sensor (21), and temperature sensor (21) series connection is installed on going out pencil (11) and is close to the position department of sodium hypochlorite electrolysis trough (1) liquid outlet.

5. A hypochlorite generator as claimed in claim 4, wherein: the mixing pipeline (5) comprises a mixing pipe (51), a liquid inlet of the mixing pipe (51) is communicated with a liquid outlet of the automatic salt mixing pump (2), a liquid outlet of the mixing pipe (51) is communicated with a liquid inlet of the sodium hypochlorite electrolytic cell (1), and a pipeline mixer (52), a dilute brine electromagnetic flow meter (53), a mechanical flow meter (54) and a dilute brine valve (55) are sequentially arranged on the mixing pipe (51) at intervals along the flow direction of dilute brine in the mixing pipe (51).

6. A hypochlorite generator as claimed in claim 5, wherein: the utility model discloses a sodium hypochlorite electrolysis trough, including mixing pipe (5), the intercommunication is laid and is used for leading into pickling pipeline (6) of pickling solution in sodium hypochlorite electrolysis trough (1) on mixing pipeline (5), pickling pipeline (6) are including pickling pipe (61), the play liquid end and mixing pipe (51) intercommunication of pickling pipe (61), the play liquid end of pickling pipe (61) is located mixing pipe (51) and goes up the low reaches position of dilute brine valve (55), the position department that is close to mixing pipe (51) on pickling pipe (61) is established ties and is had pickling inlet valve (63), the feed liquor end intercommunication of pickling pipe (61) has pickling pump (62), the other end and pickling bucket (65) intercommunication of pickling pump (62).

7. The hypochlorite generator as claimed in claim 6, wherein: control system (7) include PLC main control unit (71), the input and the two-way electricity of output of PLC main control unit (71) are connected with control screen (72), dilute brine valve (55), go out medicine valve (12), water intaking valve (262), the control end of pickling valve (63) and pickling valve (64) return respectively with the output electric connection of PLC main control unit (71), the control end of water softener (8) and electrolysis power (20) respectively with the output electric connection of PLC main control unit (71), pickling pump (62), the control end of automatic salt pump (2) of joining in marriage respectively with the output electric connection of PLC main control unit (71).

8. A hypochlorite generator as claimed in claim 7, wherein: the utility model discloses a PLC main control unit, including cooling water installation (81), cooling water intaking valve (84), cooling outlet valve (85), the control end of stop valve (86) respectively with the output electric connection of PLC main control unit (71), the output of temperature sensor (21) and the input/output end electric connection of PLC main control unit (71), be provided with the threshold value is predetermine to the biggest temperature in PLC main control unit (71), temperature sensor (21) detect obtain real-time temperature and send back in PLC main control unit (71), PLC main control unit (71) are compared this real-time temperature and the threshold value is predetermine to the biggest temperature.

9. A production method of sodium hypochlorite is characterized in that: the sodium hypochlorite generator according to any one of claims 1 to 8, wherein the production method comprises a sodium hypochlorite production step, an acid washing step;

the sodium hypochlorite production step comprises:

s1, proportioning dilute brine in equal proportion: the PLC main controller (71) controls the automatic salt preparation pump (2) and the water inlet valve (262) to be opened, controls the pickling pump (62), the pickling inlet valve (63) and the pickling return valve (64) to be closed, and the automatic salt preparation pump (2) respectively sucks softened water and strong brine in proportion through the water inlet pipe (26) and the strong brine inlet pipe (27) and conveys the softened water and the strong brine to the mixing pipeline (5) to be mixed into dilute brine;

s2, mixed dilute brine: the PLC main controller (71) controls the opening of a dilute brine valve (55), and dilute brine in the mixing pipeline (5) flows through the pipeline mixer (52) and is conveyed into the sodium hypochlorite electrolytic tank (1);

s3, preparing sodium hypochlorite liquid medicine: the PLC main controller (71) controls the electrolytic power supply (20) to supply power to the sodium hypochlorite electrolytic tank (1), and the sodium hypochlorite electrolytic tank (1) electrolyzes dilute saline water to prepare sodium hypochlorite liquid medicine;

s4, storing sodium hypochlorite liquid medicine: the PLC main controller (71) controls the medicine outlet valve (12) to be opened, and the sodium chlorate liquid medicine prepared in the sodium chlorate electrolytic tank (1) is conveyed to the medicine storage tank (3) through the medicine outlet pipe (11) to be stored;

the pickling step comprises the following steps:

x1, preparing a pickling solution: preparing a pickling solution in a pickling barrel (65), wherein the ratio of the pickling solution is 1: 2, water, wherein the hydrochloric acid concentration of the pickling solution is less than or equal to 3 percent;

x2, pickling scale: the PLC main controller (71) controls an acid washing pump (62) and an acid washing inlet valve (63) to be opened, and controls an automatic salt preparation pump (2), a water inlet valve (262) and a dilute brine valve (55) to be closed, the acid washing pump (62) is used for sucking acid washing liquid in an acid washing barrel (65) and pressurizing the acid washing liquid to be conveyed into a sodium hypochlorite electrolytic tank (1) through an acid washing pipe (61) and a mixing pipe (51), and the acid washing liquid is used for cleaning scales in the sodium hypochlorite electrolytic tank (1);

x3 and acid washing liquid reflux: the PLC main controller (71) controls the acid washing return valve (64) to be opened and controls the medicine outlet valve (12) to be closed, and acid washing liquid in the sodium hypochlorite electrolytic tank (1) flows back to the acid washing barrel (65) through the medicine outlet pipe (11) and the acid washing return pipe (66).

10. A process for the production of sodium hypochlorite according to claim 9, characterized in that: in the step S4, the temperature sensor (21) is used for detecting the real-time water temperature of the sodium hypochlorite liquid medicine in the medicine tube (11) and sending the real-time water temperature to the PLC main controller (71), the PLC main controller (71) compares the real-time water temperature with a maximum water temperature preset threshold value to judge whether the temperature in the sodium hypochlorite electrolytic tank (1) is normal, and the PLC main controller (71) controls the cooling water device (81), the cooling water inlet valve (84), the cooling water outlet valve (85) and the stop valve (86) to work at any time according to the comparison signal.