Sodium chlorate (potassium chlorate) electrolysis device

Abstract

The invention provides a sodium chlorate (potassium chlorate) electrolyzer, which comprises a reactor, an electrolytic cell group and a lifting steel frame, a pressure discharge assembly is arranged between the input end of the reactor and the output end of the electrolytic cell group, is connected with an emptying pipe of the reactor and is mounted on the lifting steel frame, and the maximum pipe diameter of an input pipeline of the electrolytic cell group is larger than the sum of the pipe diameters of upper headers. The pressure difference between the upper collecting pipe and the lower collecting pipe is reduced by changing the height of the whole pipeline, the flow speed is increased, the phenomenon of no empty groove is achieved, hydrogen and electrolyte mixed liquid can be rapidly fed into the reactor, hydrogen is emptied through the top of the reactor, and therefore equipment can operate safely, and safety is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic instruments and equipment, in particular to a sodium chlorate (potassium chlorate) electrolysis device. Background Art

[0002] The following problems exist in the electrolysis process of industrial sodium chloride (potassium). The electrolysis transportation system and the electrolysis area will have empty slots because the hydrogen product is not quickly discharged from the electrolysis area. The large number of empty slots will cause the voltage in the electrolysis area to be unstable, causing the tank body to explode. During the electrolysis process, the electrolysis transportation pipeline will slow down and the lateral pressure will increase due to the high inlet and long pipeline. When the lateral pressure is high, hydrogen and other gases cannot be transferred from the electrolysis area in time during the electrolysis process, and even when the product falls back and cannot be discharged, it will lead to high resistance and low electrolysis efficiency, and there is a certain risk of explosion. When the content of conventional raw material solution is large, a large amount of hydrogen can be generated by electrolysis to be enough to take out the solution for storage. As the proportion of the electrolysis raw material solution content in the stored raw material decreases, it is impossible to generate enough hydrogen to ensure the rising force of the solution. As a result, reflux and fall back occur in the pipeline, thereby affecting the resistivity of the electrolytic cell area, causing the voltage to increase and explode.

[0003] To achieve the above object, the present invention provides a sodium chlorate (potassium chlorate) electrolysis device, which can solve the problems raised in the above background technology. Summary of the invention

[0004] The present invention adopts the following technical solutions to achieve:

[0005] A sodium chlorate (potassium chlorate) electrolysis device comprises a reactor, an upper liquid collecting pipe, and an electrolysis group, wherein a support frame is fixedly provided on one side of the reactor, a shunt pipe is provided above the reactor, the shunt pipe is laterally connected to the upper liquid collecting pipe, and the upper liquid collecting pipe is fixedly connected to the support frame;

[0006] The electrolysis group includes a plurality of electrolytic cells, the liquid inlet channels of the electrolytic cells are movably connected to the liquid outlet end of the reactor, the outlet ends of the plurality of electrolytic cells are upwardly connected to riser pipes, and the other ends of the plurality of riser pipes are connected to the upper liquid collecting pipe;

[0007] The rising pipe is a telescopic sealing sleeve, and a lifting machine is provided at the bottom of the electrolysis group;

[0008] A hydrogen transfer box is provided on the support frame, a hydrogen recovery pipe is provided on the side of the diverter pipe, an air inlet end of the hydrogen transfer box is connected to the hydrogen recovery pipe, and an air outlet end of the hydrogen transfer box is connected to the plurality of riser pipes.

[0009] Preferably, the multiple electrolytic cells are arranged in a row, a liquid return pipe is provided at the bottom of the reactor and connected to the liquid inlets of the multiple electrolytic cells, a telescopic folded pipe is provided between the liquid return pipe and the electrolytic cells, and the liquid return pipe is fixed to the ground;

[0010] The lifting part of the lifting machine is fixedly connected to the bottom of the electrolytic cells distributed in a row;

[0011] The gas outlet end of the hydrogen transfer box is provided with a hose and is connected with a hydrogen energy replenishing pipe, and the gas outlet end of the hydrogen energy replenishing pipe is connected with the side surface of the riser obliquely upward.

[0012] Preferably, a guide opening is provided on the side wall of the upper liquid collecting pipe, and an adaptable sealing block is connected to one side of the upper liquid collecting pipe, and the adaptable sealing block is located inside the guide opening and slides;

[0013] A buffer branch pipe is provided on the upper part of the riser, and the buffer branch pipe is a retractable hose section;

[0014] The adaptive sealing block includes an outer sealing block and an inner sealing block, a movable block is provided between the outer sealing block and the inner sealing block, the movable block is located in the guide opening and slides, the inner sealing block is located in the movable cavity and is slidably connected, and a sealing layer is provided on the side of the sealing layer close to the inner sealing block; the inner surface and the outer surface of the diverter pipe are directly in contact with the adaptive sealing block.

[0015] Preferably, the support frame includes a main liquid supply frame and a working platform, the main liquid supply frame is fixedly connected to the upper liquid collecting pipe, and the working platform is located on the upper surface of the support frame.

[0016] Preferably, the riser includes a monitoring control valve arranged on the pipeline, the riser is connected to the liquid inlet of the electrolytic cell via a flexible connecting pipeline, and a spring sleeve is arranged outside the flexible connecting pipeline.

[0017] Preferably, the top of the electrolytic cell is a liquid outlet, the material is discharged upward, and a liquid return pipe connected to the liquid discharge pipe is provided on one side of the bottom of the electrolytic cell.

[0018] Preferably, the rated electrolysis voltage of a single electrolytic cell is 2.8V-3V, preferably 2.9V.

[0019] Preferably, a primary feed port is provided at the top of the reactor for initially filling in the sodium chloride (potassium) solution; a replenishing liquid return group is provided on the upper collecting pipe, and the replenishing liquid return group includes a secondary feeding pipe, which is arranged above one end of the upper collecting pipe close to the diversion pipe and is used for subsequent replenishment of the sodium chloride (potassium) solution, and a metering valve is provided on the secondary feeding pipe; and a balancing pipe is provided on the upper collecting pipe.

[0020] Preferably, the liquid outlet valve is arranged on the side of the reactor, and the concentration standard of sodium (potassium) chlorate in the solution discharged from the liquid outlet valve is not less than 550 g / L.

[0021] Preferably, an airflow auxiliary pipe is provided on the side surface of one end of the upper liquid collecting pipe close to the diverter pipe, and the airflow auxiliary pipe is connected with the diverter pipe obliquely upward to assist the hydrogen to be discharged upward.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] According to the working requirements of electrolysis, the present invention utilizes the rising effect of a large amount of hydrogen generated during electrolysis. Due to the huge density difference between hydrogen and electrolytic solution, the electrolyzed solution is pushed out of the pipeline through the hydrogen filled in the pipeline. The rising speed that affects the transportation of hydrogen can be changed by changing the rising height of the rising pipe so that hydrogen and solution can be transferred to the upper collecting pipe at a faster speed, thereby maintaining the hydrogen content in the electrolytic cell and reducing the risk of explosion caused by hydrogen filling.

[0024] After the raw materials are nearly completely reacted, the lifting mechanism is used in combination with the telescopic pipeline and the pump-type hydrogen replenishing link of the present invention to reduce the rising height while changing the pressure required for hydrogen rising, thereby ensuring the delivery of the product solution when the raw material sodium chloride and potassium chloride solutions are insufficient when the reaction is almost complete. At the same time, the product hydrogen is recovered and pumped, and the product hydrogen is transported to the rising pipeline for secondary use. Through its physical effect, the gas transmission capacity of the raw material rising is improved, and the problem of explosion caused by empty tanks caused by solution falling back is solved.

[0025] The product of electrolysis of sodium chloride (potassium) is quickly transported through the riser, and the support frame is reduced from the conventional elevated body transportation method, such as 5 meters, to 3 meters, which can make the hydrogen and solution in the pipeline move quickly inside the upper collecting pipe or near the position of the two side transverse pipes of the upper collecting pipe, and can change the natural fall of the solution in the vertical pipe caused by the insufficient lifting force and slow rising speed of hydrogen at a higher height. The method of lowering the riser can improve the product transportation effect of the electrolysis group, speed up the output of materials, and increase economic benefits;

[0026] The present invention is provided with a secondary different filling method, and the primary feed port can be filled to determine the material content of sodium chloride (potassium) at the beginning of electrolysis, and the hydrogen generated subsequently is collected through a hydrogen recovery pipe, and the solution is directly introduced into the reactor, so that the electrolysis efficiency of the electrolytic cell can be calculated by the amount of solution filled in the secondary feed pipe, and the most suitable electrolysis transportation method of the electrolysis group can be obtained through independent experiments;

[0027] When the product after electrolysis is introduced into the reactor through the upper liquid collecting pipe, a simple gas-liquid separation is carried out, which provides space for the rise of hydrogen, facilitates hydrogen recovery and reduces the risk of hydrogen entering the electrolytic cell again through the return liquid pipe, thereby increasing the risk of explosion in the cavity of the electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The overall structure diagram of the electrolysis device of the present invention is

[0029] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure in FIG.

[0030] Figure 3 It is a schematic diagram of the separation of the communication structure of the upper liquid collecting pipe and the diversion pipe of the present invention.

[0031] In the figure: 1. Reactor; 2. Electrolysis group; 3. Support frame; 4. Liquid replenishment group; 101, upper liquid collecting pipe; 102, air flow auxiliary pipe; 104, diversion pipe; 105, liquid return pipe; 106, primary feed port;

[0032] 201, electrolytic cell; 202, monitoring control valve; 203, flexible connection pipe; 204, spring sleeve; 205, liquid discharge pipe; 206, rising pipe;

[0033] 301. Working platform; 302. Main liquid supply rack;

[0034] 401, secondary feeding pipe; 402, liquid outlet valve; 403, balance pipe; 404, hydrogen recovery pipe;

[0035] 501, adaptable seal block; 502, buffer branch pipe;

[0036] 503, sleeve tube; 504, guide opening; 505, movable cavity; 506, movable block; 507, sealant layer; 508, outer sealing block; 509, inner sealing block. DETAILED DESCRIPTION

[0037] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0041] In one embodiment of the present invention: Figure 1-3 , comprising a reactor 1, an upper liquid collecting pipe 101, and an electrolysis group 2, wherein a support frame 3 is fixedly provided on one side of the reactor 1, a shunt pipe 104 is provided above the reactor 1, and the shunt pipe 104 is laterally connected to the upper liquid collecting pipe 101, and the upper liquid collecting pipe 101 is fixedly connected to the support frame 3;

[0042] The electrolysis group 2 includes a plurality of electrolytic cells 201, the liquid inlet channels of the electrolytic cells 201 are movably connected to the liquid outlet end of the reactor 1, the outlet ends of the plurality of electrolytic cells 201 are upwardly connected to a riser 206, and the other ends of the plurality of riser 206 are connected to the upper liquid collecting pipe 101;

[0043] The rising pipe 206 is a telescopic sealing sleeve, and a lift is provided at the bottom of the electrolysis group 2;

[0044] A hydrogen transfer box is provided on the support frame 3, a hydrogen recovery pipe 404 is provided on the side of the diverter pipe 104, an air inlet end of the hydrogen transfer box is connected to the hydrogen recovery pipe 404, and an air outlet end of the hydrogen transfer box is connected to the plurality of riser pipes 206;

[0045] The support frame 3 is a low-height steel frame, and the electrolysis efficiency can be improved by changing the height. Specifically, when the height of the steel frame is reduced from 5m to 3m, the electrolysis efficiency is improved by 15%.

[0046] The support frame 3 includes a main liquid supply frame 302, which is used to support and fix the height position of the upper liquid collecting pipe 101;

[0047] The working platform 301 is fixed on the upper surface of the supporting frame 3;

[0048] refer to Figure 1-2 , a plurality of riser tubes 206 are evenly connected to both sides of the upper liquid collecting pipe 101, and each of the riser tubes 206 is connected to the top liquid outlet end of each of the electrolytic cells 201;

[0049] The riser 206 includes a monitoring control valve 202, which is arranged on the pipeline of the riser 206 and is used to monitor the hydrogen and solution output states of the riser 206; a flexible connection pipeline 203, which is used to cut off the riser 206 and the two ends of the liquid inlet of the electrolyzer 201, and can be extended and moved; a spring sleeve 204, which is sleeved on the outside of the spring sleeve 204 and is used to buffer the tension pressure of the two ends of the spring sleeve 204;

[0050] The top of the electrolytic cell 201 is a liquid outlet, and the material is discharged upward, and the product solution is discharged upward by utilizing the physical and chemical properties of the electrolyzed sodium chloride; a liquid return pipe 105 is provided on one side near the bottom of the electrolytic cell 201 and is connected to the liquid discharge pipe 205;

[0051] The rated electrolysis voltage of the single electrolytic cell 201 is 3V, and the input voltage of the electrolysis group 2 is a rectified DC voltage of 110V;

[0052] The top of the reactor 1 is provided with a primary feed port 106, which is located at the top of the reactor 1 and is used for initially filling the sodium chloride (potassium) raw material; a secondary feed pipe 401 is connected to the upper end of the upper collecting pipe 101 close to the diverter pipe 104 and is used for continuously replenishing the sodium chloride (potassium) raw material; a metering valve is provided on the pipe section of the secondary feed pipe 401 to control the replenishment and delivery amount of the raw material;

[0053] The top of the shunt pipe 104 is provided with a gas flow valve to realize a switch discharge effect, and a hydrogen recovery pipe 404 is provided on the side of the shunt pipe 104, and the delivery end of the hydrogen recovery pipe 404 is connected to a hydrogen storage device;

[0054] A liquid outlet valve 402 is provided on the side of the reactor 1, and the liquid outlet valve 402 is used to discharge a sodium (potassium) chlorate solution that meets the content standard, and the concentration standard of the sodium (potassium) chlorate in the discharged solution is 550 g / L;

[0055] The upper collecting pipe 101 is provided with an airflow auxiliary pipe 102 on one side of the end close to the diverter pipe 104. The airflow auxiliary pipe 102 is connected to the diverter pipe 104 obliquely upward to assist the hydrogen to be discharged upward. The upper collecting pipe 101 is provided with a balance pipe 403.

[0056] According to the working requirements of electrolysis, the present invention utilizes the rising effect of a large amount of hydrogen generated during electrolysis. Due to the huge density difference between hydrogen and electrolytic solution, the electrolyzed solution is pushed out of the pipeline through the hydrogen filled in the pipeline. The rising speed that affects the transportation of hydrogen can be changed by changing the rising height of the rising pipe 206 so that hydrogen and solution can be transferred to the upper collecting pipe 101 at a faster speed, thereby maintaining the hydrogen content in the electrolytic cell 201 and reducing the explosion caused by hydrogen filling.

[0057] The product of electrolysis of sodium chloride (potassium) is quickly transported through the riser 206, and the support frame 3 is reduced from a conventional elevated body transportation method, such as 5 meters, to 3 meters, which can enable the hydrogen and solution in the pipeline to move quickly to the interior of the upper collecting pipe 101 or the position of the transverse pipes on both sides close to the upper collecting pipe 101, which can change the natural fall of the solution in the vertical pipe caused by insufficient lifting force of hydrogen at a higher altitude and slow rising speed. The method of lowering the riser 206 can improve the product transportation effect of the electrolysis group 2, speed up the material output, and increase economic benefits. The buffer branch pipe 502 can release the lifting force of the upward transportation at the folded pipe position of the upper collecting pipe position in the ascending interval by lateral pressure, thereby reducing the phenomenon of gas rising and liquid falling back. The installation position of the buffer branch pipe 502 is preferably the corner position where the riser is connected to the upper collecting pipe 101 and the top position of the straight pipe with a vertical bottom surface, such as Figure 1 Position shown.

[0058] The energy replenishment pumping implementation method of the present invention includes a reactor 1, an upper liquid collecting pipe 101, and an electrolysis group 2. A support frame 3 is fixedly provided on one side of the reactor 1. A shunt pipe 104 is provided above the reactor 1. The shunt pipe 104 is laterally connected to the upper liquid collecting pipe 101. The upper liquid collecting pipe 101 is fixedly connected to the support frame 3.

[0059] The electrolysis group 2 includes a plurality of electrolytic cells 201, the liquid inlet channels of the electrolytic cells 201 are movably connected to the liquid outlet end of the reactor 1, the outlet ends of the plurality of electrolytic cells 201 are upwardly connected to a riser 206, and the other ends of the plurality of riser 206 are connected to the upper liquid collecting pipe 101;

[0060] The rising pipe 206 is a telescopic sealing sleeve, and a lifting machine 7 is provided at the bottom of the electrolysis group 2;

[0061] A hydrogen transfer box 6 is provided on the support frame 3 , a hydrogen recovery pipe 404 is provided on the side of the diverter pipe 104 , an air inlet end of the hydrogen transfer box 6 is connected to the hydrogen recovery pipe 404 , and an air outlet end of the hydrogen transfer box 6 is connected to the plurality of riser pipes 206 .

[0062] The multiple electrolytic cells 201 are arranged in a row, and a liquid return pipe 105 is provided at the bottom of the reactor 1 to connect with the liquid inlets of the multiple electrolytic cells 201. A telescopic folding pipe 107 is provided between the liquid return pipe 105 and the electrolytic cells 201, and the liquid return pipe 105 is fixed to the ground;

[0063] The lifting part of the lifting machine 7 is fixedly connected to the bottom of the electrolytic cells 201 arranged in a row;

[0064] The outlet end of the hydrogen transfer box 6 is provided with a hose and connected to a hydrogen recharging pipe 601, and the outlet end of the hydrogen recharging pipe 601 is connected obliquely upward to the side of the riser 206;

[0065] After the raw materials are nearly completely reacted, the lifting mechanism 7 is used in combination with the telescopic pipeline and the pump-type hydrogen replenishing link of the present invention, so that the pressure required for the hydrogen to rise can be changed while reducing the rising height, so as to ensure the transportation of the product solution when the raw material sodium chloride and potassium chloride solutions are insufficient when the reaction is almost complete. At the same time, the product hydrogen is recovered and pumped, and the product hydrogen is transported to the riser 206 for secondary utilization. Through its physical effect, the gas transmission capacity of the raw material rising is improved, and the problem of explosion caused by empty tanks caused by solution falling back is solved. Most of the hydrogen generated in the raw material is recovered by the hydrogen recovery pipe 404 and then pumped through the hydrogen transfer box 6. Part of the hydrogen is discharged through the pump body to the hydrogen replenishing pipe 601 to replenish the upward dynamic hydrogen to the riser 206. The connection position between the hydrogen replenishing pipe 601 and the riser 206 is located in the lower half of the telescopic pipe section of the riser 206. The best expansion and contraction mode is that the lower section is indented like the upper section. The connection point is located in the lower half, which can avoid conflict with the preferred effect buffer branch pipe 502 and can reduce the minimum limit of hydrogen production after the reaction (the minimum value under the condition of ensuring transportation), so as to obtain a better supplement effect. In addition, it is convenient to cooperate with the monitoring control valve 202 for detection. The connection point is optimally located at the upper part of the monitoring control valve 202. The closer to the monitoring control valve 202, the more accurate the instantaneous flux limit of the bottom rise can be obtained; after hydrogen replenishment, the solution is driven to the upper collecting pipe 101 and enters the reactor 1 through the diverter pipe 104. The rising hydrogen is separated in the gas flow auxiliary pipe 102 and collected and used again by the hydrogen recovery pipe 404. Therefore, the amount of hydrogen diverted for energy replenishment in the hydrogen energy replenishment pipe 601, the riser 206, the upper collecting pipe 101, and the diverter pipe 104 is basically constant, which does not cause waste of beneficial energy and has better economic benefits.

[0066] In another embodiment of the present invention: the chemical properties of the electrolysis of sodium (potassium) chloride solution and its significance for the risk of explosion, according to the electrolysis requirements of sodium chlorate and potassium chlorate, the preparation of the two products can be obtained by a set of electrolysis devices with the same configuration, and the raw materials are sodium chloride solution and potassium chloride solution respectively, and a large amount of hydrogen and corresponding sodium chlorate or potassium chlorate are generated by electrolysis. The device uses the method of electrolysis to generate hydrogen to quickly take away the hydrogen product inside the electrolytic cell 201, thereby maintaining the dynamic content of hydrogen inside the electrolytic cell 201, avoiding the occurrence of hydrogen bubbles in the electrolysis area to generate cavities, and the air The formation of the cavity will affect the internal voltage of the electrolytic cell 201. The device adopts an electrolysis voltage of 3V. Through experiments and practical operations, it is found that when the internal voltage of the electrolytic cell 201 is affected to 5.9V, the electrolytic cell 201 has a greater risk of explosion. Since the electrolytic cell 201 usually uses relatively expensive metal coatings and its own materials, it will cause greater losses, and the feed ends of the electrolytic cells 201 are connected, which can easily cause the entire electrolytic group 2 to explode. Therefore, it is very important to quickly take away the electrolytic product hydrogen. Reducing the height of the support frame 3 can better reduce the explosion risk of the electrolytic group 2.

[0067] In another embodiment of the present invention:

[0068] Regarding the utilization efficiency of the product: the present invention is provided with a secondary different filling method, and the primary feed port 106 can be filled to determine the material content of sodium chloride (potassium) at the beginning of electrolysis. The hydrogen generated subsequently is collected through the hydrogen recovery pipe 404, and the solution is directly introduced into the reactor 1. Therefore, the electrolysis efficiency of the electrolytic cell 201 can be calculated by the amount of solution filled in the secondary feeding pipe 401, and the most suitable electrolysis transportation method of the electrolysis group 2 can be obtained through independent experiments; the high amount of hydrogen generated by electrolysis in the present invention has its characteristics, first, a large number of electrolytic cells 201 are distributed on both sides of the electrolytic cell 201, and their heights are the same, Therefore, the hydrogen content electrolyzed within a certain period of time is positively correlated with the electrolytic cell 201. After balancing the air pressure at both ends through the balance pipe 403, the amount of hydrogen in the upper collecting pipe 101 can be transported in large quantities while ensuring air pressure transportation. After being recovered through the hydrogen recovery pipe 404, it can generate greater economic benefits and can be used for corresponding hydrogen tests, etc.; secondly, the large amount of hydrogen produced can enhance the lifting and extrusion effect of the solution in the electrolytic cell 201, and with the two-time feeding system, the product solution can be better transported, so that the time for a single discharge of 500g / L can be reduced, and better electrolysis efficiency can be obtained at the same time.

[0069] In another embodiment of the present invention: the height reduction of a sodium (potassium) chlorate electrolytic cell 201 device of a short shunt tube 104 provided in this embodiment affects the electrolysis efficiency.

[0070] In common chemical production, the cabin of the reactor 1 is a blast furnace cabin, which makes the pipeline of the support frame 3 higher and the capacity of the pipeline larger, resulting in a greater load pressure on the electrolytic hydrogen production power end under the action of the original supply pressure. Therefore, the present invention expands the structure of the blast furnace body and reduces its height. A specific experimental result is disclosed. Taking the original plant reactor 1 with a height of 5 meters as an example, the height of the support frame 3 structure is reduced by 1 meter, the height of the reactor 1 is reduced at the same time, and the area occupied by the circular base is further expanded. The experiment shows that the electrolysis efficiency can be improved by about 5%-10% when the height is reduced by 1 / 5. The specific threshold is that the efficiency is increased to about 5% when the height is reduced by 1 / 5 of the original height, and the efficiency is increased by about 15% when it is reduced to 3 meters. The above are all efficiency results obtained by referring to the support height of the upper collecting pipe 101 of the replenishment return liquid group 4 is 5 meters above the ground. When matching with it When the height of other support frames 3 is kept constant under the condition that the outlet pressure of the original reactor 1 remains unchanged, a single electrolytic cell 201 can be used to conduct a height test to obtain the most suitable height; its application method includes the following steps: S1, height adjustment: using the single electrolytic cell 201 in the above-mentioned electrolysis device, by changing the installation height of the support frame 3 to the upper liquid collecting pipe 101, the electrolysis efficiency of a single feeding and discharging is collected to obtain an adapted support frame 3 height; S2, building the support frame 3: fixing the upper liquid collecting pipe 101 according to the adapted height obtained in S1; S3, packing electrolysis: first filling the reactor 1 and then connecting the liquid inlet switch of the replenishment liquid return group 4 to replenish the liquid in real time, electronically detecting the product content inside the reactor 1, and opening the liquid outlet valve 402 to transport the product; S4, hydrogen recovery: using the suction device to continuously take away the rising gas of the diversion pipe 104 for collection and utilization.

[0071] The principle of the present invention is as follows: the lowering of the pipeline can make the liquid pressure inside the pipeline easier to meet, the flow resistance is reduced, the amount of hydrogen generated by the current is constant, and the liquid flow rate is accelerated when the lifting power is equal. The hydrogen transfers the chlorate ions and anode sodium (potassium) generated in the electrolysis to the reaction zone more quickly, reducing the bubble effect and improving the electrolysis efficiency; the resistance of the solution generated and reduced by the side reaction current in the reactor is less than the resistance of the solution with excessive hydrogen, thereby improving the electrolysis efficiency. After the electrochemical reaction, the electrolyte quickly leaves the electrolytic cell 201 and enters the reactor for a chemical reaction, which greatly reduces the side reaction. In addition, the device can be synchronously applied to the electrolytic production of potassium chlorate.

[0072] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A sodium chlorate (potassium chlorate) electrolysis device, characterized in that: It comprises a reactor (1), an upper liquid collecting pipe (101), and an electrolysis group (2); a support frame (3) is fixedly provided on one side of the reactor (1); a shunt pipe (104) is provided above the reactor (1); the shunt pipe (104) is laterally connected to the upper liquid collecting pipe (101); and the upper liquid collecting pipe (101) is fixedly connected to the support frame (3); The electrolysis group (2) comprises a plurality of electrolytic cells (201), wherein the liquid inlet channels of the electrolytic cells (201) are movably connected to the liquid outlet end of the reactor (1), and the outlet ends of the plurality of electrolytic cells (201) are all upwardly connected to riser pipes (206), and the other ends of the plurality of riser pipes (206) are connected to the upper liquid collecting pipe (101); The rising pipe (206) is a telescopic sealing sleeve, and a lifting machine (7) is provided at the bottom of the electrolysis group (2); A hydrogen transfer box (6) is provided on the support frame (3), a hydrogen recovery pipe (404) is provided on the side of the diverter pipe (104), an air inlet end of the hydrogen transfer box (6) is connected to the hydrogen recovery pipe (404), and an air outlet end of the hydrogen transfer box (6) is connected to the plurality of riser pipes (206).

2. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: The multiple electrolytic cells (201) are arranged in a row, a liquid return pipe (105) is provided at the bottom of the reactor (1) and is connected to the liquid inlets of the multiple electrolytic cells (201), a telescopic folded pipe (107) is provided between the liquid return pipe (105) and the electrolytic cells (201), and the liquid return pipe (105) is fixed to the ground; The lifting part of the lifting machine (7) is fixedly connected to the bottom of the electrolytic cells (201) arranged in a row; The outlet end of the hydrogen transfer box (6) is provided with a hose and is connected to a hydrogen recharging pipe (601), and the outlet end of the hydrogen recharging pipe (601) is connected obliquely upward to the side of the riser (206).

3. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: A guide opening (504) is provided on the side wall of the upper liquid collecting pipe (101); an adaptable sealing block (501) is connected to one side of the upper liquid collecting pipe (101); the adaptable sealing block (501) is located inside the guide opening (504) and slides; A buffer branch pipe (502) is provided on the upper portion of the riser (206), and the buffer branch pipe (502) is a retractable hose section; The adaptive sealing block (501) comprises an outer sealing block (508) and an inner sealing block (509); a movable block (506) is provided between the outer sealing block (508) and the inner sealing block (509); the movable block (506) is located in the guide opening (504) and slides; the inner sealing block (509) is located in the movable cavity (505) and is slidably connected; a sealing layer (507) is provided on a side close to the inner sealing block (509); the inner surface and the outer surface of the diverter pipe (104) are directly in contact with the adaptive sealing block (501).

4. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: The support frame (3) comprises a main liquid supply frame (302) and an operating platform (301); the main liquid supply frame (302) is fixedly connected to an upper liquid collecting pipe (101); and the operating platform (301) is located on the upper surface of the support frame (3).

5. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: The riser (206) includes a monitoring control valve (202) arranged on the pipeline. The riser (206) is connected to the liquid inlet of the electrolytic cell (201) via a flexible connection pipeline (203). A spring sleeve (204) is arranged outside the flexible connection pipeline (203).

6. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: The top of the electrolytic cell (201) is a liquid outlet, and the material is discharged upward. A liquid return pipe (105) connected to the liquid discharge pipe (205) is provided on one side of the bottom of the electrolytic cell (201).

7. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: The rated electrolysis voltage of a single electrolytic cell (201) is 2.8V-3V.

8. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: The reactor (1) is provided with a primary feed port (106) at the top thereof for initially filling in a sodium chloride (potassium) solution; the upper liquid collecting pipe (101) is connected to a liquid replenishment group (4), the liquid replenishment group (4) comprising a secondary feed pipe (401), the secondary feed pipe (401) being arranged above one end of the upper liquid collecting pipe (101) close to the diversion pipe (104) and used for subsequent replenishment of the sodium chloride (potassium) solution, the secondary feed pipe (401) being provided with a metering valve; A balance pipe (403) is provided on the upper liquid collecting pipe (101).

9. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: A liquid outlet valve (402) is provided on one side of the reactor (1). The liquid outlet valve (402) is arranged on the side of the reactor (1). The concentration standard of sodium (potassium) chlorate in the solution discharged from the liquid outlet valve (402) is not less than 550 g / L.

10. A sodium chlorate (potassium chlorate) electrolysis device according to claim 1, characterized in that: An airflow auxiliary pipe (102) is provided on the side surface of one end of the upper liquid collecting pipe (101) close to the diverter pipe (104); the airflow auxiliary pipe (102) is connected to the diverter pipe (104) obliquely upwards and is used to assist the upward discharge of hydrogen.

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