CN214937847U - Energy-saving sodium hypochlorite solution preparation device - Google Patents

Abstract

The utility model provides an energy-saving device for preparing sodium hypochlorite solution, which comprises a brine tank, a liquid supplementing tank and an electrolysis unit, wherein the brine tank is respectively provided with a liquid inlet and a first liquid outlet for sodium chloride solution to flow into and out of the brine tank; the liquid supplementing box is communicated with the first liquid outlet through a liquid supplementing pipe arranged at the top of the liquid supplementing box, the liquid supplementing pipe extends into the liquid supplementing box and extends downwards, a floating part is arranged in the liquid supplementing box, a plugging part is constructed on the floating part, and a second liquid outlet is arranged on the liquid supplementing box; the electrolysis unit comprises an inner barrel and an outer barrel sleeved outside the inner barrel, an electrolysis cavity communicated with the second liquid outlet is limited between the inner barrel and the outer barrel, the inner barrel and the outer barrel are respectively connected with a solar cell panel to electrolyze sodium chloride solution, and a third liquid outlet is arranged on the outer barrel. The utility model discloses a preparation facilities of energy-saving sodium hypochlorite solution is convenient for prepare sodium hypochlorite solution, still has energy-conservation and uses the advantage that the flexibility is high.

Description

Energy-saving sodium hypochlorite solution preparation device

Technical Field

The utility model relates to a preparation technical field of sodium hypochlorite, in particular to preparation facilities of energy-saving sodium hypochlorite solution.

Background

At present, the phenomenon of insufficient household disinfection is generally caused by the reasons that the disinfectant (a common 84 disinfectant, an active ingredient: sodium hypochlorite) is expensive, short in quality guarantee period, not in-time in supply and the like.

The sodium hypochlorite solution is a solution of sodium hypochlorite, is a yellowish solution, has a chlorine-like smell and a very pungent smell, is extremely unstable, and is a chemical product frequently used in chemical industry. Sodium hypochlorite solutions are suitable for disinfection, sterilization and water treatment, as well as for products that are only suitable for general industrial use.

In the prior art, a sodium hypochlorite solution is usually prepared by electrolyzing a sodium chloride solution, and an external power supply is required for electrolysis, so that a preparation device of the sodium hypochlorite in the prior art is limited in use.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a preparation facilities of sodium hypochlorite to in preparation sodium hypochlorite solution, and have better result of use.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an energy-saving preparation device for sodium hypochlorite solution, comprising:

the brine tank is provided with a liquid inlet and a first liquid outlet respectively, so that a sodium chloride solution can flow into and out of the brine tank;

the liquid supplementing box is communicated with the first liquid outlet through a liquid supplementing pipe arranged at the top of the liquid supplementing box, the liquid supplementing pipe extends into the liquid supplementing box and extends downwards, a floating part is arranged in the liquid supplementing box, a blocking part for blocking or unblocking the liquid supplementing pipe due to the change of the liquid level in the liquid supplementing box is constructed on the floating part, and a second liquid outlet is arranged on the liquid supplementing box;

the electrolysis unit comprises an inner cylinder and an outer cylinder sleeved outside the inner cylinder, an electrolysis cavity communicated with the second liquid outlet is defined between the inner cylinder and the outer cylinder, and a third liquid outlet communicated with the electrolysis cavity is arranged on the outer cylinder;

and the solar cell panel is respectively connected with the inner barrel and the outer barrel so as to electrolyze the sodium chloride solution in the electrolytic cavity.

Further, the cross section of the bottom of the liquid replenishing pipe is gradually enlarged along the flowing direction of the sodium chloride solution, and the cross section of the top of the blocking part is gradually reduced along the direction close to the liquid replenishing pipe.

Further, the floating piece is guided to slide in the liquid supplementing box.

Further, be equipped with the slider on the periphery wall of floating piece, be equipped with on the inner wall of fluid infusion case and supply the gliding spout of slider direction.

Furthermore, the second liquid outlet is communicated with an annular liquid inlet pipe, and the electrolysis units are annular and are circumferentially communicated with the liquid inlet pipe at intervals.

Furthermore, a collecting pipe is connected below the liquid inlet pipe corresponding to each third liquid outlet, each third liquid outlet is connected with the collecting pipe, a liquid discharge pipe is communicated with the collecting pipe, and a first valve is arranged on the liquid discharge pipe.

Furthermore, the preparation device of the energy-saving sodium hypochlorite solution further comprises a liquid storage barrel communicated with the liquid discharge pipe, an output pipe is arranged on the liquid storage barrel, and a second valve is arranged on the output pipe.

Furthermore, a plurality of connecting pieces connected between the liquid inlet pipe and the collecting pipe are arranged between the liquid inlet pipe and the collecting pipe.

Furthermore, a protective cover is arranged on the periphery of the electrolysis unit, and the solar cell panel is arranged on the protective cover.

Compared with the prior art, the utility model discloses following advantage has:

(1) energy-saving sodium hypochlorite solution's preparation facilities, through brine tank and fluid infusion case combination setting, sodium chloride solution flows in the fluid infusion incasement naturally under the action of gravity, and fluid infusion incasement sets up floating piece and shutoff portion, can effectively realize the shutoff or remove shutoff fluid infusion pipe according to the change of liquid level height to reach the effect of automatic fluid infusion at any time. In addition, an electrolysis cavity is formed by sleeving the inner barrel and the outer barrel, so that the contact area of the sodium chloride solution and the electrolysis unit can be effectively increased, and the electrolysis efficiency is favorably improved. Simultaneously, set up the third liquid outlet that is linked together with the electrolysis chamber on the outer barrel, do benefit to and collect the sodium hypochlorite solution that the electrolysis was made. In addition, the solar cell panel is adopted as a power supply, so that energy conservation is facilitated, and the flexibility of the preparation device in use is improved.

(2) In addition, the cross section of fluid infusion pipe bottom sets up along the flow direction of sodium chloride solution is gradually big, and the cross section at the top of shutoff portion sets up along the direction that is close to the fluid infusion pipe is gradually littleer, and it arranges to be convenient for, and the fluid infusion is effectual.

(3) The sliding blocks on the peripheral wall of the floating piece are matched with the sliding grooves in the inner wall of the liquid supplementing box, so that the guide sliding action between the floating piece and the liquid supplementing box can be realized, and the relative rotation between the floating piece and the liquid supplementing box can be avoided, thereby being beneficial to improving the use stability of the floating piece.

(4) Through the second liquid outlet with annular feed liquor pipe intercommunication setting, and the electrolysis unit is corresponding to the circumference interval arrangement of feed liquor pipe a plurality ofly, can improve device's preparation efficiency.

(5) The collecting pipe that sets up is connected to below through the feed liquor pipe, is favorable to converging after the third liquid outlet flows the sodium hypochlorite solution that will prepare and collects, and sets up the stock solution bucket that second valve and fluid-discharge tube are linked together and set up on the fluid-discharge tube of intercommunication on the collecting pipe sets up first valve, output tube, the collection and the use of the liquid of all being convenient for.

(6) Through set up a plurality of connecting pieces between feed liquor pipe and the collecting pipe, can effectively improve the structural strength of device.

(7) The protective cover is arranged on the periphery of the electrolysis unit, so that the electrolysis unit can be protected. And the solar cell panel is arranged on the protective cover, so that the design and implementation are facilitated.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural diagram of an energy-saving device for preparing sodium hypochlorite solution according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of each electrolysis unit in a connected state according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a fluid infusion tank according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the interior of the fluid infusion tank according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view of an electrolysis cell according to an embodiment of the present invention;

description of reference numerals:

1. a brine tank; 2. a liquid inlet; 4. a liquid replenishing box; 5. a liquid supplementing pipe; 6. a float member; 7. a plugging section; 9. An electrolysis unit; 901. an inner cylinder; 902. an outer cylinder; 903. an electrolysis chamber; 11. a slider; 12. a chute; 13. a liquid inlet pipe; 14. a collector pipe; 15. a liquid discharge pipe; 16. a first valve; 17. a liquid storage barrel; 18. An output pipe; 19. a second valve; 20. a connecting member; 21. a protective cover; 22. a solar cell panel.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a preparation device of sodium hypochlorite, which is shown in fig. 1-5 and mainly comprises a brine tank 1, a liquid replenishing tank 4, an electrolysis unit 9 and a liquid storage barrel 17. In the embodiment, the brine tank 1 is barrel-shaped, a liquid inlet 2 is disposed at the top of the brine tank 1, a sealing cover is disposed at the liquid inlet 2 for sealing the liquid inlet 2, a first liquid outlet is disposed at the bottom of the brine tank, and the sodium chloride solution flows into the brine tank 1 through the liquid inlet 2 and is stored therein. It should be noted that the brine tank 1 in this embodiment is placed on a stand for convenience of implementation.

Referring to fig. 1 and 4, the solution replenishing tank 4 is connected to the first liquid outlet via a solution replenishing pipe 5 disposed at the top of the tank, the solution replenishing pipe 5 extends into the solution replenishing tank 4 and extends downward, and the sodium chloride solution in the brine tank 1 flows into the solution replenishing tank 4 via the solution replenishing pipe 5. And a second liquid outlet is also arranged on the liquid supplementing box 4 for the sodium chloride solution in the liquid supplementing box 4 to flow out. In addition, a float 6 is provided in the replenishing tank 4, and a plugging portion 7 for plugging or unplugging the replenishing pipe 5 due to a change in the liquid level in the replenishing tank 4 is formed in the float 6, thereby realizing automatic replenishment of the sodium chloride solution.

Specifically, in this embodiment, the floating member 6 may be a floating plate, and preferably, the size of the floating member 6 is adapted to the inner wall of the fluid infusion tank 4. Meanwhile, a plurality of through holes are formed in the floating piece 6 and are uniformly distributed at intervals, and the sodium chloride solution flowing out of the liquid supplementing pipe 5 flows downwards through the through holes, so that the floating piece 6 can slide due to the change of the liquid level in the liquid supplementing box 4.

Referring to fig. 3 and 4, the blocking portion 7 may be made of the same material as the floating ball in the prior art, and specifically, is a protrusion formed on the upper surface of the floating member 6 in a protruding manner corresponding to the outlet end of the fluid infusion tube 5. Preferably, the cross section of the bottom of the liquid replenishing pipe 5 is gradually enlarged along the flowing direction of the sodium chloride solution, and the cross section of the top of the blocking part 7 is gradually reduced along the direction close to the liquid replenishing pipe 5. So set up, not only be convenient for shutoff portion 7 and realize the shutoff to fluid infusion pipe 5 in the insertion of fluid infusion pipe bottom, but also do benefit to shutoff portion 7 and remove the shutoff to fluid infusion pipe 5 to improve the automatic effect of carrying out the fluid infusion to fluid infusion case 4 of the sodium chloride solution in the brine tank 1.

In this embodiment, as shown in fig. 3 and 4, a plurality of sliding blocks 11 are disposed on the outer peripheral wall of the floating member 6, a plurality of sliding grooves 12 adapted to the sliding blocks 11 are disposed on the inner wall of the fluid infusion tank 4, and the sliding blocks 11 are guided to slide in the sliding grooves 12. Here, through slider 11 on the periphery wall of float 6 and the cooperation setting of spout 12 on the inner wall of fluid infusion case, both can realize the direction slip action of float 6 on fluid infusion case 4, can avoid taking place relative rotation again between the two to be favorable to improving the stability in use of float 6.

In order to further improve the use effect of the sliding block 11, the sliding block 11 can be made of a metal material, for example, a rigid material, which not only can improve the stability in sliding, but also is beneficial to increasing the balance weight of the floating member 6, thereby being beneficial to the plugging part 7 to remove the plugging of the fluid infusion tube 5.

The electrolysis unit 9 in this embodiment includes an inner cylinder 901 and an outer cylinder 902 sleeved outside the inner cylinder 901, and an electrolysis chamber 903 communicated with the second liquid outlet is defined between the inner cylinder 901 and the outer cylinder 902. The preparation device further comprises a solar cell panel 22 which is respectively connected with the inner cylinder 901 and the outer cylinder 902 to electrolyze the sodium chloride solution in the electrolysis cavity 903 and prepare a sodium hypochlorite solution. Here, the mode that adopts solar cell panel 22 as the power not only does benefit to energy-concerving and environment-protective, compares in the prior art the mode that adopts external power supply moreover, has the advantage that service environment is more nimble, easy to carry out.

In detail, as shown in fig. 5, the inner cylinder 901 and the outer cylinder 902 in this embodiment have openings at the same end, and the inner cylinder 901 is disposed to protrude from the opening of the outer cylinder 902. To form the electrolytic chamber 903, the open end of the outer cylinder 902 and the open end of the inner cylinder 901 are provided with sealing members. The sealing member not only seals the openings but also ensures insulation between the inner cylinder 901 and the outer cylinder 902.

The sealing member in this embodiment includes an inner plugging plate for plugging the open end of the inner cylinder 901, and an outer plugging plate disposed on the outer wall surface of the inner cylinder 901 for plugging the open end of the outer cylinder 902. The inner plugging plate is made of a metal material, the outer plugging plate is made of an insulating material, a sealing gasket is clamped between the outer plugging plate and the inner plugging plate, and finally the sealing gasket and the outer plugging plate are fixedly connected through a fastener penetrating through the inner plugging plate, the sealing gasket and the outer plugging plate.

Meanwhile, a first connector lug is arranged on the outer side of the outer cylinder 902, and the first connector lug is connected with the positive electrode of the solar cell panel 22 through a lead not shown in the figure. A second terminal is connected to the inner plug and is connected to the negative pole of the solar panel 22 via a line not shown in the figure.

As a preferred embodiment, referring to fig. 2, the second liquid outlet is connected to an annular liquid inlet pipe 13 via a pipeline, so that the sodium chloride solution flowing out from the second liquid outlet can be automatically split into two flows entering the annular liquid inlet pipe 13. The electrolysis unit 9 is specifically a plurality of liquid inlet pipes 13 which are circumferentially communicated with each other at intervals around the liquid inlet pipe 13.

So set up, not only do benefit to and reduce the space occupation volume, but also can make the automatic electrolytic cell 9 that enters into of sodium chloride solution in the feed liquor pipe 13, make each electrolytic cell 9 feed liquor simultaneously, and liquid distributes in each electrolytic cell 9 evenly, and in addition, the setting of a plurality of electrolytic cell 9 does benefit to the preparation efficiency of improvement device to sodium hypochlorite solution.

It should be noted that a third valve, preferably a solenoid valve, is disposed on the communicating pipe between each electrolysis unit 9 and the liquid inlet pipe 13, so as to adjust the opening state of each electrolysis unit 9. In order to meet daily requirements, one or more electrolysis units 9 can be operated by controlling the opening and closing of the third valves so as to prepare sodium hypochlorite solutions with different capacities. In order to further enhance the using effect of the preparation apparatus, the preparation apparatus in this embodiment further includes a controller connected to the third valves, and the controller may adopt a programmable controller in the prior art to control the open/close state of each third valve.

As a further arrangement, as shown in fig. 1 and 2, a third liquid outlet communicated with the electrolytic cavity 903 is provided on the outer cylinder 902, and the liquid inlet pipe 13 is connected to an annular manifold 14 corresponding to each third liquid outlet, and is located below the liquid inlet pipe 13. Each third liquid outlet is connected with the collecting pipe 14, a liquid discharge pipe 15 is communicated with the collecting pipe 14, and a first valve 16 is arranged on the liquid discharge pipe 15.

Wherein, the sodium hypochlorite solution prepared by the electrolysis unit 9 flows into the collecting pipe 14 through the third liquid outlet, and then flows out from the liquid discharge pipe 15 for collection. The first valve 16 is here arranged to facilitate control of the opening and closing of the drain 15 during liquid collection.

In order to improve the collection of the sodium hypochlorite solution and facilitate the household use, as shown in fig. 1, the preparation apparatus in this embodiment further includes a liquid storage barrel 17 communicated with the liquid discharge pipe 15, an output pipe 18 is disposed on the liquid storage barrel 17, and a second valve 19 is disposed on the output pipe 18. The sodium hypochlorite solution that flows out by fluid-discharge tube 15 flows into stock solution bucket 17 and collects, and in actual use, accessible control second valve 19's switching for the use is flowed out through output tube 18 to the sodium hypochlorite solution that has prepared.

In order to improve the stability of the liquid inlet pipe 13 and the collecting pipe 14, in this embodiment, a plurality of connectors 20 are connected between the liquid inlet pipe and the collecting pipe. Meanwhile, a plurality of connecting rods are arranged between the liquid supplementing tank 4 and the liquid inlet pipe 13 and between the collecting pipe 14 and the liquid storage tank, so that the stability of the whole device is ensured.

In addition, as shown in fig. 1, a protective cover 21 is provided at the periphery of the electrolysis unit 9 to protect the electrolysis unit 9 well. Corresponding to the protective cover 21, a plurality of the above-described solar cell panels 22 are provided at intervals in the circumferential direction of the ring protective cover 21, and are specifically installed in installation grooves provided outside the protective cover 21 so as to be installed.

In practice, the solar panel 22 of the prior art may be selected according to the specific application requirements, and preferably, the solar panel 22 may provide 12V dc power. And the size and specification of the solar cell panel 22 can be selected according to the arrangement space.

This embodiment energy-saving sodium hypochlorite solution's preparation facilities when using, open earlier the inlet 2 of brine tank 1, pour right amount of sodium chloride solution into brine tank 1, then open the third valve on communicating pipe between electrolysis unit 9 and feed liquor pipe 13 through the controller, when needing more sodium hypochlorite solution, open the third valve of a plurality of electrolysis unit 9 tops, when needing less sodium hypochlorite solution, can open the third valve of one or two electrolysis unit 9 tops, for preparing sodium hypochlorite solution ready ionization.

The sodium chloride solution in the brine tank 1 flows out through the first liquid outlet and then flows into the liquid replenishing tank 4 through the liquid replenishing pipe 5. When the sodium chloride solution in the liquid supplementing tank 4 gradually increases, under the matching action of the slide block 11 on the outer peripheral wall of the floating piece 6 and the slide groove 12 on the inner wall of the liquid supplementing tank 4, the floating piece 6 upwards guides and slides in the liquid supplementing tank 4 until the top of the blocking part 7 is contacted with the end part of the liquid supplementing pipe 5 to form the blocking of the blocking part 7 on the liquid supplementing pipe 5, and at the moment, the sodium chloride solution in the brine tank 1 does not flow out of the liquid supplementing pipe any more.

Of course, the liquid in the solution replenishing barrel 4 is continuously reduced along with the preparation process, at this time, the floating piece 6 is lowered along with the liquid level, so that the blocking part 7 and the solution replenishing pipe 5 are unblocked, and the sodium chloride solution in the brine tank 1 continuously flows into the solution replenishing tank 4 through the solution replenishing pipe 5 for solution replenishing.

Meanwhile, the sodium chloride solution flows into the annular liquid inlet pipe 13 through the second liquid outlet, and then enters the electrolysis unit 9 with the valve opened, at this time, the solar cell panel 22 stores electricity, the wiring terminals on the inner cylinder 901 and the outer cylinder 902 are connected with the solar cell panel 22 through wires, and the sodium chloride solution flowing into the electrolysis cavity 903 can be subjected to an ionization reaction to prepare a sodium hypochlorite solution.

After the sodium hypochlorite solution in electrolysis chamber 903 is prepared into sodium hypochlorite solution, flow out through the third liquid outlet promptly, simultaneously, converge and get into collecting pipe 14, open first valve 16 afterwards, liquid is in flowing into stock solution bucket 17 through fluid-discharge tube 15, accomplishes the collection of sodium hypochlorite solution. When the disinfection is needed, the second valve 19 on the output pipe 18 can be opened to receive the sodium hypochlorite solution for use.

This embodiment energy-saving sodium hypochlorite solution's preparation facilities, through brine tank 1 and the combination setting of fluid infusion case 4, sodium chloride solution flows in fluid infusion incasement 4 naturally under the action of gravity, and sets up float 6 and shutoff portion 7 in the fluid infusion incasement 4, can effectively realize the shutoff or remove shutoff fluid infusion pipe 5 according to the change of liquid level height to reach the effect of automatic fluid infusion at any time. In addition, an electrolysis cavity 903 is formed by sleeving the inner cylinder 901 and the outer cylinder 902, so that the contact area between the sodium chloride solution and the electrolysis unit 9 can be effectively increased, and the electrolysis efficiency is favorably improved. Simultaneously, set up the third liquid outlet that is linked together with electrolysis chamber 903 on outer barrel 902, do benefit to and collect the sodium hypochlorite solution that the electrolysis was made.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a preparation facilities of energy-saving sodium hypochlorite solution which characterized in that includes:

the device comprises a brine tank (1), wherein a liquid inlet (2) and a first liquid outlet are respectively formed in the brine tank (1) so that a sodium chloride solution can flow into and out of the brine tank (1);

the liquid supplementing box (4) is communicated with the first liquid outlet through a liquid supplementing pipe (5) arranged at the top of the liquid supplementing box (4), the liquid supplementing pipe (5) extends into the liquid supplementing box (4) and is arranged in a downward extending manner, a floating part (6) is arranged in the liquid supplementing box (4), a plugging part (7) for plugging or unplugging the liquid supplementing pipe (5) due to the change of the liquid level in the liquid supplementing box (4) is constructed on the floating part (6), and a second liquid outlet is arranged on the liquid supplementing box (4);

the electrolysis unit (9) comprises an inner cylinder (901) and an outer cylinder (902) sleeved outside the inner cylinder (901), an electrolysis cavity (903) communicated with the second liquid outlet is defined between the inner cylinder (901) and the outer cylinder (902), and a third liquid outlet communicated with the electrolysis cavity (903) is arranged on the outer cylinder (902);

and the solar cell panel (22) is respectively connected with the inner cylinder (901) and the outer cylinder (902) to electrolyze the sodium chloride solution in the electrolysis cavity (903).

2. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 1, wherein: the cross section of the bottom of the liquid replenishing pipe (5) is gradually enlarged along the flowing direction of the sodium chloride solution, and the cross section of the top of the blocking part (7) is gradually reduced along the direction close to the liquid replenishing pipe (5).

3. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 1, wherein: the floating piece (6) slides in the liquid supplementing box (4) in a guiding way.

4. The apparatus for preparing sodium hypochlorite solution with energy conservation according to claim 3, characterized in that: be equipped with slider (11) on the periphery wall of floating piece (6), be equipped with on the inner wall of fluid infusion case (4) and supply slider (11) direction gliding spout (12).

5. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 1, wherein: the second liquid outlet is communicated with an annular liquid inlet pipe (13), and the electrolysis units (9) are a plurality of annular liquid inlet pipes (13) which are circumferentially communicated with the liquid inlet pipe (13) at intervals.

6. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 5, wherein: and a collecting pipe (14) is connected below the liquid inlet pipe (13) corresponding to each third liquid outlet, each third liquid outlet is connected with the collecting pipe (14), a liquid discharge pipe (15) is communicated with the collecting pipe (14), and a first valve (16) is arranged on the liquid discharge pipe (15).

7. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 6, wherein: the preparation device of the energy-saving sodium hypochlorite solution further comprises a liquid storage barrel (17) communicated with the liquid discharge pipe (15), an output pipe (18) is arranged on the liquid storage barrel (17), and a second valve (19) is arranged on the output pipe (18).

8. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 6, wherein: a plurality of connecting pieces (20) connected between the liquid inlet pipe (13) and the collecting pipe (14) are arranged between the liquid inlet pipe and the collecting pipe.

9. The apparatus for preparing sodium hypochlorite solution with energy conservation of claim 1, wherein: a protective cover (21) is arranged on the periphery of the electrolysis unit (9), and the solar cell panel (22) is arranged on the protective cover (21).

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