Online sodium hypochlorite generator

Abstract

The utility model relates to the technical field of disinfectant production, in particular to an online sodium hypochlorite generator. The online sodium hypochlorite generator comprises a bottom frame and a pressure sensing plate, and the pressure sensing plate is arranged on the bottom frame. The electrolytic bath is arranged on the pressure sensing plate; the two sides of the electrolytic cell are provided with the electrolytic electrodes penetrating through the cell wall; and the outer side of the electrolytic cell penetrates through the cell wall of the electrolytic cell and is provided with the feeding mechanism capable of enabling different raw materials to sequentially enter the electrolytic cell as required. The whole reaction process is monitored and controlled through the pressure sensing plate and the controller, the total amount of raw materials entering the electrolytic bath is accurately controlled, hydrogen generated by the reaction is discharged through the oil-free vacuum pump, and after a high-concentration sodium hypochlorite solution with enough quality is generated by the electrolytic reaction, the hydrogen is discharged through the oil-free vacuum pump. And accurately controlling the water with the corresponding mass to enter the electrolytic bath, and diluting to obtain the sodium hypochlorite solution with the required mass and the required concentration.

Description

TECHNICAL FIELD

[0001] The utility model relates to disinfectant production technical field especially, relate to a sodium hypochlorite on -line generator. BACKGROUND

[0002] Sodium hypochlorite generator is introduced from abroad since the end of last century, and is rapidly applied to drinking water disinfection, hospital wastewater treatment, food and tableware disinfection, wastewater decolorization, industrial and domestic wastewater sterilization, and breeding field disinfection, which can improve the water ecological environment and protect the environment. The sodium hypochlorite generator currently used more is prepared by electrolysis of brine method, and sodium hypochlorite solution and hydrogen are generated by electrolysis of sodium chloride solution. Hydrogen is a flammable gas. However, in the process of preparing sodium hypochlorite solution by electrolysis of brine, part of the electric energy is used for heating of the electrolyte. When the temperature is too high, side reactions occur and no more sodium hypochlorite is generated. The concentrated brine solution has high conductivity and large heat generation, and side reactions are easy to occur. Therefore, the existing sodium hypochlorite generator usually generates sodium hypochlorite solution by electrolysis of dilute brine solution. The conductivity of dilute brine solution is not high, so the entire electrolysis reaction usually takes about 30 minutes, which consumes a long time. In this process, the existing sodium hypochlorite generator is used to generate fixed products by entering fixed raw materials at the beginning and then performing fixed reaction time. The reaction progress cannot be controlled, and the electrolysis time is too long or too short, which will lead to insufficient concentration of products or side reactions. Therefore, if the target concentration of products is changed during the process, the reaction must be completed, and the reaction time is long, which affects the production efficiency.

[0003] Therefore, it is necessary to design a sodium hypochlorite on-line generator for generating sodium hypochlorite solution, which can change the concentration of products at any time. UTILITY MODEL CONTENT

[0004] In order to overcome the disadvantage of being unable to adjust the concentration of the final product at any time, the technical problem to be solved is to provide a sodium hypochlorite on-line generator for generating sodium hypochlorite solution, which can change the concentration of products at any time.

[0005] The utility model discloses a technical scheme for a sodium hypochlorite on-line generator, which comprises a chassis and a pressure sensing plate, the pressure sensing plate being arranged on the chassis; an electrolytic cell, the electrolytic cell being arranged on the pressure sensing plate, and a drain being formed in the bottom of the electrolytic cell; an electrolytic electrode, the electrolytic electrode being arranged through the wall of the electrolytic cell on both sides, and the electrolytic electrode being extended downward to a deep position in the electrolytic cell at one end; a controller, the controller being arranged on the outside of the electrolytic cell and being connected to the pressure sensing plate and the electrolytic electrode through wires; a feeding mechanism, the feeding mechanism being arranged through the wall of the electrolytic cell on the outside of the electrolytic cell and being capable of feeding different raw materials into the electrolytic cell in sequence as required; an electrically-controlled valve, the electrically-controlled valve being arranged at the drain on the bottom of the electrolytic cell on the outside; and an exhaust mechanism, the exhaust mechanism being arranged through the wall of the electrolytic cell on the top of the electrolytic cell and being capable of safely exhausting gas in the electrolytic cell.

[0006] As a preferred technical scheme of the utility model, the feeding mechanism specifically comprises: a discharge pipe, the discharge pipe being arranged through the wall of the electrolytic cell on the outside; a tee pipe fitting, the tee pipe fitting being arranged on the end of the discharge pipe on the outside of the electrolytic cell; a guide pipe, one guide pipe being arranged on each end of the tee pipe fitting that is not connected to the discharge pipe; a mounting shell, one cylindrical mounting shell being arranged on the end of the two guide pipes that is not connected to the tee pipe fitting, the center of the mounting shell being located at the midpoint of the line connecting the centers of the two guide pipes and the end of the mounting shell connected to the tee pipe fitting, the mounting shell being hollow inside and the two guide pipes being arranged through the bottom shell wall of the mounting shell; an electric motor, the electric motor being arranged at the top center of the mounting shell; a rotating plate, a circular rotating plate being arranged inside the mounting shell, the rotating plate being in sliding fit with the upper and lower inner walls of the mounting shell, the radius of the rotating plate being greater than the farthest distance between the outer edge of the guide pipe and the center of the rotating plate, the rotating plate being provided with a circular hole, the center of the end of the guide pipe connected to the mounting frame and the center of the circular hole being located on the same vertical line, and a cylindrical protrusion being arranged at the center of the top of the rotating plate, the protrusion being arranged through the top of the mounting shell and being connected to the output shaft of the electric motor through a coupling.

[0007] As a preferred technical scheme of the utility model, the exhaust mechanism specifically comprises: an air inlet pipe, the air inlet pipe being arranged through the wall of the electrolytic cell on the top; an oil-free vacuum pump, the oil-free vacuum pump being arranged on the top of the electrolytic cell and being capable of safely pressurizing flammable gas, the air inlet of the oil-free vacuum pump being connected to the end of the air inlet pipe on the outside of the electrolytic cell, and the oil-free vacuum pump being connected to the controller through wires; and an air outlet pipe, the air outlet pipe being arranged at the air outlet of the oil-free vacuum pump.

[0008] As a preferred technical scheme of the utility model, the exhaust mechanism specifically comprises: an air inlet pipe, the air inlet pipe being arranged through the wall of the electrolytic cell on the top; an oil-free vacuum pump, the oil-free vacuum pump being arranged on the top of the electrolytic cell and being capable of safely pressurizing flammable gas, the air inlet of the oil-free vacuum pump being connected to the end of the air inlet pipe on the outside of the electrolytic cell, and the oil-free vacuum pump being connected to the controller through wires; and an air outlet pipe, the air outlet pipe being arranged at the air outlet of the oil-free vacuum pump.

[0009] As a preferred technical scheme of the utility model, further comprising: the length pipe, the electrolytic tank inside one end of feeding mechanism is equipped with the length pipe, the length pipe other end extends to the negative electrode side, the length pipe water outlet is opposite to the negative electrode.

[0010] As a preferred technical scheme of the utility model, further comprising: the length pipe, the electrolytic tank inside one end of feeding mechanism is equipped with the length pipe, the length pipe other end extends to the negative electrode side, the length pipe water outlet is opposite to the negative electrode.

[0011] As a preferred technical scheme of the utility model, further comprising: the length pipe, the electrolytic tank inside one end of feeding mechanism is equipped with the length pipe, the length pipe other end extends to the negative electrode side, the length pipe water outlet is opposite to the negative electrode.

[0012] The utility model has the advantages of the following: 1, the utility model discloses a pressure sensing plate and controller monitoring and control the whole reaction process, can accurately control the total amount of raw materials into the electrolytic tank, and through the oil-free vacuum pump, the hydrogen generated in the reaction is discharged, after the electrolysis reaction generates the high concentration sodium hypochlorite solution of enough quality, then the water of corresponding quality is accurately controlled to enter the electrolytic tank, and the sodium hypochlorite solution is diluted to the required quality and the required concentration.

[0013] 2, the heat exchange grid of multiple rows simultaneously can guarantee that the temperature of electrolyte in the electrolytic tank is always at the temperature suitable for reaction, makes the reaction rate accelerate, improves production efficiency, and avoids the occurrence of side reaction.

[0014] 3, the air injection mechanism can disturb the sodium hypochlorite crystallization precipitated in the bottom of electrolytic tank and attached to the side wall of electrolytic tank, makes it mix with solution fully, can dissolve faster in the following dilution process, and improves production efficiency. DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the part three-dimensional structure section view schematic diagram of electrolytic tank and length pipe of the utility model and the like components.

[0017] Figure 3 It is the part three-dimensional structure section view schematic diagram of electrolytic tank and electrolytic electrode of the utility model and the like components.

[0018] Figure 4It is the plane structure section view schematic diagram of the part structure of the feeding mechanism of the utility model.

[0019] Figure 5 It is the three-dimensional structure schematic diagram of the electric control valve of the utility model.

[0020] Figure 6 It is the three-dimensional structure schematic diagram of the air injection mechanism of the utility model.

[0021] Figure 7 It is the three-dimensional structure schematic diagram of the heat exchange grid and ultrasonic generator of the utility model.

[0022] Marked in the drawing: 1 - underframe, 2 - pressure sensing plate, 3 - electrolytic cell, 4 - electrolytic electrode, 5 - controller, 6 - feeding mechanism, 601 - feeding pipe, 602 - tee pipe fitting, 603 - conduit, 604 - installation shell, 605 - motor, 606 - rotating plate, 607 - discharge pipe, 7 - electric control valve, 8 - exhaust mechanism, 801 - air inlet pipe, 802 - oil-free vacuum pump, 803 - exhaust pipe, 9 - air injection mechanism, 901 - air pump, 902 - connecting pipe, 903 - air injection plate, 10 - heat exchange grid, 11 - ultrasonic generator, 12 - lengthening pipe. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in combination with the drawings and specific embodiments, but not limit the protection scope and application scope of the utility model. EMBODIMENT

[0024] As Figures 1 to 5 Indicated, the utility model provides a kind of sodium hypochlorite online generator, specifically including underframe 1, pressure sensing plate 2, electrolytic cell 3, electrolytic electrode 4, controller 5, feeding mechanism 6, electric control valve 7 and exhaust mechanism 8;

[0025] Wherein, underframe 1 is equipped with pressure sensing plate 2, pressure sensing plate 2 is equipped with electrolytic cell 3, and the bottom of electrolytic cell 3 is opened with a drain, and electrolytic electrode 4 is arranged on the both sides of electrolytic cell 3 and penetrates the tank wall, and electrolytic electrode 4 is extended to the deeper position in electrolytic cell 3 at one end in tank, and controller 5 is arranged on the outside of electrolytic cell 3, and electric control valve 7 is arranged at the drain on the outside bottom of electrolytic cell 3, and controller 5 is connected with pressure sensing plate 2 and electrolytic electrode 4 by wire, for carrying out electrolytic reaction and detecting the material quantity in electrolytic cell 3;

[0026] Wherein, feeding mechanism 6 is arranged on the outside of electrolytic cell 3 and penetrates the tank wall of electrolytic cell 3, for controlling different raw materials to enter electrolytic cell 3 in turn according to demand quantity;

[0027] Wherein, exhaust mechanism 8 is arranged on the top of electrolytic cell 3 and penetrates the tank wall of electrolytic cell 3, for making gas in electrolytic cell 3 safely exhaust.

[0028] The feeding mechanism 6 specifically includes a discharge pipe 607, a tee pipe 602, a guide pipe 603, a mounting shell 604, a motor 605 and a rotating plate 606;

[0029] The electrolytic tank 3 is provided with the discharge pipe 607 through the tank wall, the discharge pipe 607 is provided with the tee pipe 602 at one end outside the electrolytic tank 3, each of the two ends of the tee pipe 602 not connected with the discharge pipe 607 is provided with one guide pipe 603 for quickly feeding into the electrolytic tank 3.

[0030] The two guide pipes 603 are provided with a cylindrical mounting shell 604 at one end not connected with the tee pipe 602, the center of the mounting shell 604 is located at the midpoint of the connecting line of the centers of the two guide pipes 603 and the connecting end of the mounting shell 604, the mounting shell 604 is hollow inside and the two guide pipes 603 penetrate the bottom wall of the mounting shell 604, the motor 605 is arranged at the top center of the mounting shell 604, a circular rotating plate 606 is arranged in the mounting shell 604, the rotating plate 606 is in sliding fit with the upper and lower inner walls of the mounting shell 604, the radius of the rotating plate 606 is greater than the farthest distance from the center of the guide pipe 603 to the center of the rotating plate 606, the rotating plate 606 is provided with a circular hole, the center of the end of the guide pipe 603 connected with the mounting shell and the center of the circular hole are located on the same vertical line, the rotating plate 606 is provided with a cylindrical protrusion at the top center, the protrusion penetrates the top of the mounting shell 604 and is connected with the output shaft of the motor 605 through a shaft coupling; the mounting shell 604 is provided with two feeding pipes 601 at the top, the two feeding pipes 601 penetrate the top of the mounting shell 604, the center of the end of the guide pipe 603 connected with the mounting shell 604 and the centers of the two feeding pipes 601 are located on the same vertical line, for controlling the feeding amount into the electrolytic tank 3.

[0031] The exhaust mechanism 8 specifically includes an air inlet pipe 801, an oil-free vacuum pump 802 and an air outlet pipe 803;

[0032] The electrolytic tank 3 is provided with the air inlet pipe 801 through the tank wall at the top, the electrolytic tank 3 is provided with the oil-free vacuum pump 802 capable of safely pressurizing flammable gas at the top, the air inlet of the oil-free vacuum pump 802 is connected with the air inlet pipe 801 at one end outside the electrolytic tank 3, the oil-free vacuum pump 802 is connected with the controller 5 through wires, the air outlet of the oil-free vacuum pump 802 is provided with the air outlet pipe 803, for maintaining the sealing degree of the electrolytic tank 3 and achieving the effect of quickly extracting the produced gas when needed.

[0033] Exemplarily, saturated brine and water enter the valve from the feed pipe 601 of a feed mechanism 6 respectively, at this time the round hole on the rotating plate 606 contacts with the inner wall of the installation shell 604 up and down, the feed pipe 601 and the conduit 603 are separated by the rotating plate 606. In use, the motor 605 is started by the controller 5 through the wire, the motor 605 drives the rotating plate to rotate, the round hole of the rotating plate turns to the feed pipe 601 where the saturated brine enters, at this time the feed pipe 601 and the conduit 603 on the side of the saturated brine are connected by the round hole of the rotating plate, the saturated brine enters the electrolytic cell 3 through the conduit 603 and the discharge pipe 607. With the entry of the saturated brine, the solution mass in the electrolytic cell 3 increases, the solution mass in the electrolytic cell 3 is sensed by the pressure sensor and the signal is transmitted to the controller 5 through the wire, then the controller 5 controls the motor 605 to rotate, the round hole of the rotating plate turns to the non-connection position, the feed pipe 601 and the conduit 603 are separated by the rotating plate again, then the controller 5 controls the electrolytic electrode 4 and the oil-free vacuum pump 802 to start the electrolytic reaction and the gas extraction in the cell respectively through the wire; with the reaction proceeding, hydrogen is continuously emitted, the solution mass in the electrolytic cell 3 continuously decreases, the signal is transmitted to the controller 5 by the pressure sensing plate 2 to monitor the reaction progress; after the reaction is completed, the controller 5 controls the oil-free vacuum pump 802 to close at the same time controls the motor 605 to rotate, the round hole of the rotating plate turns to the feed pipe 601 where the water enters, the water enters the electrolytic cell 3, with the water entering the electrolytic cell 3, the solution mass in the electrolytic cell 3 increases, the solution mass in the electrolytic cell 3 is sensed by the pressure sensor and the signal is transmitted to the controller 5 through the wire, then the controller 5 controls the motor to rotate, the round hole of the rotating plate turns to the non-connection position, the feed pipe 601 and the conduit 603 are separated again; finally the controller 5 controls the electric valve to open, the product flows out from the drain at the bottom of the electrolytic cell 3, in the whole process, the pressure sensing plate 2 and the controller 5 monitor and control the whole feeding process, reaction process and discharging process, the total amount of the raw material entering the electrolytic cell 3 and the reaction progress in the electrolytic cell 3 can be accurately controlled, in the process of electrolytic reaction, the oil-free vacuum pump 802 can safely and timely discharge the hydrogen generated in the reaction, so that the pressure sensing plate 2 can more accurately monitor the progress of the reaction, when the staff wants to change the concentration of the product, because the pressure sensing plate 2 accurately senses the reaction progress, the controller 5 can accurately control the saturated brine to be added in the middle or more water to be added at the end for dilution according to the needs, and at the same time, the reaction time required is recalculated and prompted, after the electrolytic reaction generates a high-concentration sodium hypochlorite solution of sufficient mass, the corresponding mass of water is accurately controlled to enter the electrolytic cell 3 to dilute to the required mass and concentration of sodium hypochlorite solution. In this way, the whole electrolytic reaction process can change the concentration of the required product at any time under the condition of ensuring the safety of the mechanism and personnel. Embodiment

[0034] As Figure 2 and Figure 7As shown in the embodiment 1, on the basis of the embodiment 1, further comprising heat exchange grid 10, electrolytic cell 3 one side is provided with a plurality of rows of heat exchange grid 10, heat exchange grid 10 inlet and outlet through the electrolytic cell 3 one side tank wall, heat exchange grid 10 middle part is provided with a plurality of notches.

[0035] In the electrolytic reaction process, the liquid inlet of the plurality of rows of heat exchange grid 10 is connected to a liquid supply source respectively, and the heat exchange liquid is discharged from the outlet after heat exchange with the electrolyte in the heat exchange grid 10. In this way, the plurality of rows of heat exchange grid 10 can ensure that the temperature of the electrolyte in the electrolytic cell 3 is always suitable for the reaction to proceed, so as to accelerate the reaction rate and improve the production efficiency, while avoiding the occurrence of side reactions.

[0036] As shown in the embodiment 1, on the basis of the embodiment 1, further comprising heat exchange grid 10, electrolytic cell 3 one side is provided with a plurality of rows of heat exchange grid 10, heat exchange grid 10 inlet and outlet through the electrolytic cell 3 one side tank wall, heat exchange grid 10 middle part is provided with a plurality of notches. Figure 3 Figure 6 As shown in the embodiment 1, on the basis of the embodiment 1, further comprising a gas injection mechanism 9, the gas injection mechanism 9 further comprises a gas pump 901, the electrolytic cell 3 is provided with a gas pump 901 at the top, the gas pump 901 is connected with the controller 5 through wires; a gas injection plate 903 is provided at the bottom of the electrolytic cell 3, the side edge of the gas injection plate 903 is in contact with the inner wall of the electrolytic cell 3, and the gas injection plate 903 is provided with a hole at the drain port of the electrolytic cell 3, the diameter of the hole is slightly larger than that of the drain port; a connecting pipe 902 is arranged between the gas outlet of the gas pump 901 and the side edge of the gas injection plate 903, and the connecting pipe 902 penetrates through the side wall of the electrolytic cell 3.

[0037] Because the solubility of sodium hypochlorite is lower than that of sodium chloride, some sodium hypochlorite crystals will be precipitated in the electrolytic cell 3 after the electrolytic reaction is completed; at this time, the controller 5 controls the gas pump 901 to start working, the gas pump 901 sucks inert gas and introduces it into the gas injection plate 903 at the bottom of the electrolytic cell 3 through the connecting pipe 902, and the inert gas is sprayed out from the gas injection plate 903. In this way, the sodium hypochlorite crystals precipitated at the bottom of the electrolytic cell 3 and adhered to the side wall of the electrolytic cell 3 can be disturbed to mix with the solution, and in the subsequent dilution process, the sodium hypochlorite crystals can be dissolved faster, thereby improving the production efficiency.

[0038] As shown in the embodiment 1, on the basis of the embodiment 1, further comprising a gas injection mechanism 9, the gas injection mechanism 9 further comprises a gas pump 901, the electrolytic cell 3 is provided with a gas pump 901 at the top, the gas pump 901 is connected with the controller 5 through wires; a gas injection plate 903 is provided at the bottom of the electrolytic cell 3, the side edge of the gas injection plate 903 is in contact with the inner wall of the electrolytic cell 3, and the gas injection plate 903 is provided with a hole at the drain port of the electrolytic cell 3, the diameter of the hole is slightly larger than that of the drain port; a connecting pipe 902 is arranged between the gas outlet of the gas pump 901 and the side edge of the gas injection plate 903, and the connecting pipe 902 penetrates through the side wall of the electrolytic cell 3. Figure 2 After the electrolytic reaction is completed, because the solubility of sodium hypochlorite is lower than that of sodium chloride, and the generation reaction of sodium hypochlorite is in the positive electrode area, a certain amount of sodium hypochlorite crystals will be precipitated on the positive electrode. The presence of the lengthening pipe can guide the water introduced through the feeding mechanism 6 to the positive electrode in the subsequent water dilution process, so that the positive electrode can be flushed in time, the dissolution process is accelerated, the production efficiency is improved, and the service life of the electrode is also improved.

[0039] ​​

[0040] As Figure 2 And Figure 3 As shown in the embodiment 1, in addition, specifically includes an ultrasonic generator 11, electrolytic tank 3 top is provided with ultrasonic generator 11, the bottom of ultrasonic generator 11 is located in electrolytic tank 3 deeper position, ultrasonic generator 11 is connected with controller 5 through wire, wire through electrolytic tank 3 top tank wall.

[0041] After water into electrolytic tank 3, the product in electrolytic tank 3 is the mixture of sodium hypochlorite crystal and sodium hypochlorite solution, at this time, controller 5 controls ultrasonic generator 11 to start working, ultrasonic wave is conducted to each place in electrolytic tank 3 along with solution, sodium hypochlorite crystal in mixture is broken into smaller particles, so that the surface area of sodium hypochlorite solid and solution contact increases, the dissolution rate increases, improves the production efficiency.

[0042] The embodiment of the utility model is described in detail in combination with the drawings above, but the utility model is not limited to the above-mentioned embodiment, within the knowledge range of the person skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A sodium hypochlorite on-line generator, characterized by, The utility model relates to a kind of electrolytic cell, which comprises: Chassis (1) and pressure sensing plate (2), chassis (1) is equipped with pressure sensing plate (2) on it; Electrolytic cell (3), pressure sensing plate (2) is equipped with electrolytic cell (3) on it; Electrolytic electrode (4), electrolytic cell (3) is equipped with electrolytic electrode (4) on both sides of tank wall; Controller (5), electrolytic cell (3) is equipped with controller (5) outside, and controller (5) is connected with pressure sensing plate (2) and electrolytic electrode (4); Feeding mechanism (6), electrolytic cell (3) is equipped with feeding mechanism (6) outside, which can make different raw materials enter electrolytic cell (3) in turn as needed; Electric control valve (7), electrolytic cell (3) is equipped with electric control valve (7) outside bottom drain port; Exhaust mechanism (8), electrolytic cell (3) is equipped with exhaust mechanism (8) on top of tank wall, which can safely discharge gas in electrolytic cell (3).

2. A sodium hypochlorite on-line generator as claimed in claim 1, characterized in that The feeding mechanism (6) specifically includes: Discharge pipe (607), electrolytic cell (3) is equipped with discharge pipe (607) outside tank wall; Three-way pipe fitting (602), discharge pipe (607) is equipped with three-way pipe fitting (602) on one end outside electrolytic cell (3); Mounting shell (604), two conduits (603) are equipped with a cylindrical mounting shell (604) on one end not connected with three-way pipe fitting (602); Electric motor (605), mounting shell (604) is equipped with electric motor (605) on top center position outside; Rotating plate (606), mounting shell (604) is equipped with a circular rotating plate (606) inside, rotating plate (606) is slidingly fitted with upper and lower inner walls of mounting shell (604), rotating plate (606) is provided with a circular hole, and rotating plate (606) is provided with a cylindrical protrusion on top center, which penetrates the top of mounting shell (604) and is connected with output shaft of electric motor (605) through a coupling; Feeding pipe (601), two feeding pipes (601) are equipped on top of mounting shell (604), and two feeding pipes (601) penetrate the top of mounting shell (604), and the centers of two conduits (603) and two feeding pipes (601) are on a vertical line respectively.

3. A sodium hypochlorite on-line generator as claimed in claim 2, characterized in that The exhaust mechanism (8) specifically includes: Air inlet pipe (801), electrolytic cell (3) is equipped with air inlet pipe (801) on top of tank wall; Oil-free vacuum pump (802), electrolytic cell (3) is equipped with oil-free vacuum pump (802) on top, which can safely pressurize flammable gas, and the air inlet of oil-free vacuum pump (802) is connected with air inlet pipe (801) on one end outside electrolytic cell (3), and oil-free vacuum pump (802) is connected with controller (5) through wires; An exhaust pipe (803) is arranged at the outlet of the oil-free vacuum pump (802).

4. A sodium hypochlorite on-line generator as claimed in claim 3, characterized in that Further comprising: The heat exchange grid (10) is arranged on one side of the electrolytic tank (3), and the inlet and outlet of the heat exchange grid (10) penetrate the side wall of the electrolytic tank (3). A plurality of notches are formed in the middle of the heat exchange grid (10).

5. A sodium hypochlorite on-line generator as claimed in claim 4, characterized in that Further comprising a jet mechanism (9), which specifically includes: An air pump (901) is arranged at the top of the electrolytic tank (3), and the air pump (901) is connected to the controller (5) through a wire; A jet plate (903) is arranged at the bottom of the electrolytic tank (3), and the side edge of the jet plate (903) is in contact with the inner wall of the electrolytic tank (3). A hole is formed in the jet plate (903) at the drain port of the electrolytic tank (3); A connecting pipe (902) is arranged between the air outlet of the air pump (901) and the side edge of the jet plate (903) to connect them, and the connecting pipe (902) penetrates the side wall of the electrolytic tank (3).

6. A sodium hypochlorite on-line generator as claimed in claim 5, characterized in that, Further comprising: A lengthened pipe is arranged at one end of the electrolytic tank (3) of the feeding mechanism (6), and the other end of the lengthened pipe extends to the side of the negative electrode. The water outlet of the lengthened pipe is opposite to the negative electrode.

7. A sodium hypochlorite on-line generator as claimed in claim 6, characterized in that Further comprising: An ultrasonic generator (11) is arranged at the top of the electrolytic tank (3), and the bottom of the ultrasonic generator (11) is located at a deep position in the electrolytic tank (3). The ultrasonic generator (11) is connected to the controller (5) through a wire, and the wire penetrates the top wall of the electrolytic tank (3).

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