KR20200069133A - Connection Structure of Electrode Rods installed in Reactor that manufactures sodium hypochlorite - Google Patents

Abstract

The present invention relates to a surface connection structure for electrode rods installed in a reactor for manufacturing sodium hypochlorite with an electrolytic reaction using salt. More particularly, the present invention relates to a connection structure for electrode rods in a reactor for manufacturing sodium hypochlorite, wherein electrode rods inserted into and fixed to cover plates coupled to opposite ends of a reactor body including a cylindrical housing of a PVC material and a bus bar installed in the interior of the reactor body are coupled to each other by electrode rod screw tabs of the electrode rods protruding to the inside of the reactor body, the electrode rods and one surface of the bus bar are provide to contact each other, the electrode rods and the bus bar surface-contact each other by electrode rod screw nuts coupled to the electrode rod screw tabs protruding from an opposite surface of the bus bar whereby contact resistance decreases and a high-output supply becomes possible, and the bus bar and the electrode rods are coupled to the cover plates by a plurality of electrode rod fixing bolts that pass through the bus bar to be stably fixed and installed. Accordingly, the bus bar can be stably fixed.

Description

Connection structure of Electrode Rods installed in Reactor that manufactures sodium hypochlorite}

The present invention relates to a surface connection structure of an electrode electrode installed in a reactor for producing sodium hypochlorite by electrolysis reaction using salt, and more specifically, a cover plate coupled at both ends of a reactor body made of a cylindrical PVC material housing. The electrode bar fixed to the insert, and the bus bar installed inside the reactor body are coupled by an electrode bar screw tab protruding inside the reactor body of the electrode bar, and are provided so that one surface of the electrode bar and the bus bar are in contact with each other. The electrode bar and the busbar are in surface contact with the electrode bar screw nut which is coupled to the electrode bar screw tab protruding from the other side, resulting in low contact resistance and high power supply, and the busbar and electrode bar are provided by a number of electrode bar fixing bolts penetrating the busbar. It relates to a reactor electrode connection structure for manufacturing sodium hypochlorite that is stably fixedly coupled to a cover plate.

In general, the electrolysis-type sodium hypochlorite generator (generator) electrolyzes low-concentration brine to safely produce sodium hypochlorite (chaline), stores the saline solution, and uses a diaphragm pump for supplying the salt to conduit (piping) It is a chlorine disinfection system with a non-diaphragm-type electrolysis method that is quantitatively injected into the field.

Sodium hypochlorite generator is used as water purification plant, sewage treatment plant sterilizer, cooling water boiler in general chemical plant, desalination process treated water, cooling water treatment in power plant, drinking water treatment, vegetable, meat processing, washing and restraining of swimming pool, bleach for household use It produces chlorine-based disinfectants in the form of a colorless and transparent liquid with a strong chlorine odor.

In such a sodium hypochlorite manufacturing apparatus, it is preferable that the temperature inside the electrolysis tank is 15°C to 25°C. When the temperature inside the electrolysis tank rises above 40°C during the production of sodium hypochlorite (hereinafter, salt), hazardous substances (closing Rate, perchlorate, and bromate), and a large amount of scale is generated at the cathode, so the temperature inside the electrolysis tank must be kept below 40°C to minimize the generation of harmful substances and scale.

It is known that the above-mentioned harmful substances can be reduced through cooling of the salt, and the amount of perchlorate is reduced by 1/2 every 5°C cooling.

Controlling the overall temperature of the room to maintain a constant temperature inside the electrolysis tank is costly and inefficient, but in the case of a salt generator, the hydrogen generator gas is also produced as a by-product. The room that cannot be sealed is heated by a heater in the winter season and cooled by an air conditioner in the summer season.

On the other hand, in the winter, the water temperature of the electrolysis tank is maintained at a level similar to that of the room at about 4°C to 10°C, which may cause damage to the electrode due to low water temperature during the initial operation of the flame generator, and in the summer, the room temperature There is a problem in that harmful substances are generated due to the high water temperature of 30°C or higher.

In order to solve this problem, the conventional salt generator was intended to maintain the temperature by using a heat exchanger, but in the case of the salt generator which is applied to the existing heat exchanger, the heat exchanger is applied only to the increase of the incoming water, that is, the heat exchanger is limited to the winter season .

In addition, the conventional salt generator using a heat exchanger has a disadvantage in that the electrolysis water being electrolyzed circulates a heat exchanger mounted externally to degrade the decomposition efficiency or cools only the surface, thereby deteriorating the performance of the electrolytic material or reducing the use efficiency of energy.

On the other hand, the electrode cell in which the electrolysis of the conventional salt generator is made has the disadvantage that the casing is made of acrylic or PVC, so that the efficiency of electrolysis is reduced due to heat dissipation, and the electrode connection portion is weak compared to the amount of current flowing, thereby increasing the electrode failure rate. .

As described above, the electrode cell in which general electrolysis is performed, that is, the reactor is mostly caused by ignition due to poor contact, and is fixed to the cover 11 of the reactor 10 made of a PVC housing as shown in FIG. 1. In order to connect the terminal sheet 13 to the terminal 12, the nut 15 is inserted into the screw shaft 14 protruding from the terminal 12, and the terminal sheet 13 is inserted between the nuts 15 to connect. In this way, when the terminal 12 and the terminal sheet 13 are made of a line contact connection by a screw thread, at least 100A or more of electricity flows through the terminal 12, so when connecting the terminal 12 and the terminal sheet 13 Heat increases rapidly due to contact resistance.

Therefore, the existing terminal 12 and terminal sheet 13 line contact connection method has a risk of fire because heat is continuously accumulated, and also leads to an increase in the temperature inside the reactor due to heat generation, thereby generating harmful substances and sodium hypochlorite. Production efficiency will decrease.

KR10-1198630 (Registration patent) 2012.11.01 KR10-1244313 (Registration patent) 2013.03.11 KR10-2018-0072220 (Public patent) 2018.06.29

Accordingly, the present invention was devised to solve the above problems,

An electrode bar fixed to the cover plate coupled at both ends of the reactor body made of a PVC housing and a busbar installed inside the reactor body are coupled by an electrode bar screw tab protruding inside the reactor body of the electrode rod, Sodium hypochlorite is provided so that one side of the electrode bar and the busbar is in contact, and the electrode bar and the busbar are in surface contact with the electrode bar screw nut coupled to the electrode screw tab on the other surface of the busbar, thereby reducing contact resistance and enabling high-power supply. It is an object to provide a reactor electrode connection structure for manufacturing.

Another object of the present invention is to provide a reactor electrode connection structure for manufacturing sodium hypochlorite, which is stably fixed by being connected to a cover plate by a busbar bar coupled to an electrode bar fixing bolt coupled to a screw tab in which a plurality of busbars are formed.

Another object of the present invention is that a plurality of electrode rod fixing bolts are installed to fix the busbar to the cover plate, combine the busbar and the electrode rod with an electrode rod screw nut, and insert an O-ring between the electrode rod and the cover plate, thereby inserting the electrode rod into the cover plate. An object of the present invention is to provide a reactor electrode connection structure for manufacturing sodium hypochlorite that is tightly coupled.

Another object of the present invention is to reduce the contact resistance between the electrode bar and the busbar to prevent fire accidents caused by heat generation, to reduce the failure rate, and to maintain the reactor body that is electrolyzed cool, thereby generating harmful substances in electrolytic materials. The present invention is to provide a reactor electrode connection structure for manufacturing sodium hypochlorite, which minimizes, improves energy efficiency, and reduces operating maintenance costs.

In order to achieve the above object, the present invention is an electrode rod 120 which is inserted and fixed through a cover plate 110 fixedly coupled at both ends of a reactor body 100 made of a housing made of PVC; The electrode plate 131 installed inside the reactor body 100 is equipped with a plate-shaped busbar 130 equipped with an electrode rod screw tab 121 protruding from the electrode rod 120 inside the reactor body 100. Combined by; The electrode rod 120 is located on one side of the outer surface of the cover plate 110, extends inwardly of the reactor body 100 to form a plate-shaped inner side surface; The electrode rod 120 inside side and one side of the bus bar 130 are in contact with each other; An electrode screw nut 140 is coupled to the electrode screw tab 121 that penetrates through the bus bar 130 and protrudes from the other surface of the bus bar 130 so that the electrode bar 120 and the bus bar 130 are in surface contact. .

In addition, the bus bar 130 of the present invention is fixed to the cover plate 110 by the electrode bar fixing bolt 150 coupled to the bus bar screw tab 132 is formed a plurality of spaced apart a certain distance to the bus bar 130. Fixed installation.

In addition, the bus bar 130 is provided with an electrode through hole 133 to be coupled to the electrode bar screw tab 121.

An O-ring 160 is inserted between the cover plate 110 and the electrode rod 120 so that the cover plate 110 and the electrode rod 120 are tightly coupled.

Accordingly, the reactor electrode connection structure for manufacturing sodium hypochlorite of the present invention includes an electrode bar fixed to a cover plate coupled at both ends of a reactor body made of a cylindrical PVC material housing, and a busbar installed inside the reactor body to form a electrode of the electrode bar. The electrode bar and the busbar are coupled by an electrode screw nut that is coupled to the electrode bar screw tab on the other side of the busbar, provided that the electrode bar and one side of the busbar are in contact with each other, by means of an electrode bar screw tab protruding inside the reactor body. Since it is in contact with the surface, the contact resistance is lowered, and high power supply is possible.

ㅍ of the present invention has the effect that the busbar is coupled to the cover plate and is stably fixed by a plurality of electrode bar fixing bolts that are coupled to the busbar screw tabs.

Reactor electrode rod connection structure for the production of sodium hypochlorite of the present invention, a plurality of electrode fixing bolts are fixed to the busbar to be installed on the cover plate, the busbar and the electrode rod are combined with an electrode rod screw nut, and by inserting an O-ring between the electrode rod and the cover plate, the electrode rod It has the effect of closely bonding to the cover plate.

Reactor electrode rod connection structure for the production of sodium hypochlorite of the present invention has a small contact resistance between the electrode rod and the bus bar to prevent fire accidents due to heat generation, to reduce the failure rate, and to keep the reactor body that is electrolyzed cold, electrolytic It has the effect of minimizing the production of harmful substances and reducing energy maintenance costs by improving energy efficiency.

The reactor electrode connection structure for manufacturing sodium hypochlorite of the present invention has the advantage of producing sodium hypochlorite at a low concentration (less than 1%) rather than a high concentration, which is very safe for the human body and the environment.

1 is a cross-sectional view showing a connection structure of a reactor for preparing sodium hypochlorite,
Figure 2 is a cross-sectional view showing a reactor electrode connection structure for producing sodium hypochlorite according to an embodiment of the present invention,
3 is a perspective view showing a reactor electrode connection structure for producing sodium hypochlorite according to an embodiment of the present invention,
4 is an exploded perspective view showing a reactor electrode connection structure for preparing sodium hypochlorite according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described to be easily carried out by those of ordinary skill in the art. Regardless of FIG. 1 already introduced in the prior patent document, in the present invention, a new name and a reference number are assigned to each component. In addition, in a plate body structure having two sides facing each other, any one side of the two sides is referred to as a'one side', and the other side facing the one side is referred to as a'other side'.

The present invention is a reactor electrode connection structure for producing sodium hypochlorite at a low concentration by electrolysis using soft water and salt, as shown in FIGS. 2 to 4,

An electrode rod 120 which is inserted and fixed through the cover plate 110 fixedly coupled at both ends of the reactor body 100 made of a cylindrical or polygonal PVC housing; The electrode plate 131 installed on the inside of the reactor body 100 is equipped with a plate-shaped busbar 130 on which the electrode plate 131 is mounted, and is formed on the electrode rod screw tab 121 protruding from the electrode body 120 inside the reactor body 100. Combined by; The electrode rod 120 is located on one side of the outer surface of the cover plate 110, extends inside the reactor body 100 to form an inner side of the plate shape; An inner side of the electrode rod 120 and one surface of the bus bar 130 are in contact with each other; An electrode screw nut 140 is coupled to the electrode screw tab 121 protruding from the other surface of the bus bar 130 through the bus bar 130, and the electrode bar 120 and the bus bar 130 are in contact. do. The reactor body 100 of the present invention may be cylindrical or polygonal, but is illustrated and illustrated in a cylindrical shape for convenience of description.

The reactor body 100 of the present invention is provided with an electrolysis tank in which electrolysis of brine (salt water) in which soft water and brine is diluted is performed.

In the present invention, a raw water supply pump (not shown) is used to send brine (salt water) to the electrolysis tank (electrolyzer or electrolytic cell, reactor body 100 in the present invention), similar to a device for manufacturing general sodium hypochlorite. Send to a water softener (not shown) by using, and remove some of the soft water from the water softener and send it to a salt storage tank (not shown) to dilute the salt water formed in the salt storage tank with soft water to make a brine with a concentration of about 3%. (Not shown) is sent to the reactor body 100 through a brine transfer pipe (not shown). (This process is the same as a general sodium hypochlorite manufacturing apparatus, so omitted in the drawings.)

At this time, the temperature of the dilute brine flowing into the reactor body 100 is preferably maintained at a temperature of 15 ~ 25 ℃. This is because the temperature of sodium hypochlorite may be excessively increased by heat generated during electrolysis when the temperature below 15°C is supplied into the electrolysis tank, and when it is above 25°C. Such an increase in temperature lowers the electrolysis efficiency of sodium hypochlorite and further leads to the generation of harmful substances.

A coil-type heater (not shown) may be provided inside the brine transfer pipe (not shown) for supplying diluted salt water to the reactor body 100. In order to solve the problem and the problem that the electrolysis does not occur when too much salt water enters the reactor body 100, which is a reaction tank, the salt water is heated below a certain temperature to be supplied to the reactor body 100. The reactor main body 100, which is a reaction tank, has an increase in temperature when an electrolysis reaction occurs, but when the initial brine flows in, when the brine flows too low, the electrolysis reaction rate decreases, so the temperature of the initially introduced brine After increasing, the heater should be stopped.

The reactor main body 100 is a reaction tank (cell) in which electrolysis occurs, and sends the electricity to the bus bar 130 connected to the electrode rod 120 with the brine sent through the brine transfer pipe (not shown) to electrolyze the electricity. Hydrogen generated during decomposition is discharged through a hydrogen outlet (not shown) and sodium hypochlorite is produced and sent to a sodium hypochlorite storage unit (not shown).

The reactor body 100 is a generation portion of sodium hypochlorite, and a plurality of electrode plates 131 for supplying electricity for electrolysis are protruded in the transverse direction in the longitudinal direction, and combined with the electrode plates 131 A plurality of busbars 130 are provided in the vertical direction, and may be made of a plastic material, and may be formed in a cylindrical shape or a square pillar shape.

Since the reactor body 100 is filled with brine and reacts with electric incense, the part that does not pass electricity to prevent corrosion, that is, the reactor body 100 and the cover plate 110 are made of, for example, PVC material, and the electricity is The communicating portion, that is, the electrode rod 120 and the busbar 130 is made of a titanium material.

The reactor body 100 is made of a hollow housing, and both open ends may be provided to be closed by a cover, that is, a cover plate 110.

The electrode plate 120 is inserted and inserted into the cover plate 110, a portion of the electrode rod 120 is provided on the outer side of the reactor body 100, and the rest is protruded to the inner side of the reactor body 100. It is provided.

The portion of the electrode rod 120 provided on the outer side of the reactor body 100 is wider than the insertion hole into which the electrode rod 120 is inserted into the cover plate 110 and is provided to cover the insertion hole.

The electrode 120 has an electrode rod screw tab 121 protruding from the center toward the inside of the reactor body 100.

The electrode rod 120 is made of a terminal that transmits electricity from the outside of the reactor body 100 to the inside, and is connected to a bus bar 130 provided inside the reactor body 100 to booth the electrode rod 120 The bar 130 is provided to enter electricity.

The bus bar 130 has a circular or polygonal shape, and is equipped with a titanium electrode plate 131 arranged side by side in the longitudinal direction inside the reactor body 100 to be installed at a predetermined interval to supply external power. It is made of, and one surface from the inner surface of the cover plate 110 is installed to be spaced at a predetermined interval.

The bus bar 130 is provided so that the electrode rod 120 protrudes at a predetermined interval from the cover plate 110 so as to be in contact with the inner side surface of the electrode rod 120 located inside the reactor body 100, and the electrode rod 120 ) Is coupled to the electrode tab screw tab 121 is formed to protrude.

In the electrode rod 120, an electrode rod screw tab 121 having a screw line formed on an outer circumferential surface is formed to protrude in an inner direction of the reactor body 100, and is integrally provided with the electrode rod screw tab 121, and the busbar 130 In the electrode rod through hole 133 is formed in order to be extrapolated to the electrode screw tab 121.

The electrode screw tab 121 is inserted into the electrode through hole 133 of the bus bar 130, and is provided to physically connect and electrically connect the electrode 120 and the bus bar 130.

The electrode rod 120 and the busbar 130 are provided to face each other so that the inner side of the electrode rod 120 and one side of the busbar 130 are in surface contact with each other.

Part of the busbar 130 is fixed to the electrode bar screw nut 140, but in order to ensure surface contact with the inner side surface of the electrode bar 120, the bus bar 130 is fixed to the bus bar 130 in addition to the electrode bar screw nut 140. Spaced apart to form a plurality of busbar screw tabs 132 are formed, coupled to the busbar screw tab 132, the cover plate 110 by the electrode rod fixing bolt 150 mounted to the cover plate 110 It is strongly fixed to the installation.

The electrode rod fixing bolt 150 is capable of fixing the bus bar 130 to the cover plate 110 as well as fixing the electrode rod 120 connected to the bus bar 130 to the cover plate 110.

On the inner side provided inside the reactor body 100 of the cover plate 110, a groove in which the electrode fixing bolt 150 is inserted and fixed is formed, and the electrode fixing bolt 150 inserted into the other surface of the busbar 130 is formed. ) Is inserted into the groove to fix the electrode fixing bolt 150 to the cover plate 110.

The O-ring 160 is a coupling means made of an elastic material, and the gap between the electrode plate 120 and the electrode plate 120 coupled from the outer side of the cover plate 110 is closed to close the gap, and the electrode rod 120 and the cover plate ( 110) is coupled by the electrode bar fixing bolt 150 mounted on the busbar 130, so as to be tightly coupled to prevent the cover plate 110 through which the electrode rod 120 is inserted, so that the reactor body 100 is sealed. do.

Accordingly, the cover plate 110, the electrode rod 120, and the busbar 130 are closely coupled to each other so that hydrogen generated during electrolysis or brine flows out is not counted.

The reactor body 100 is mounted on an outlet where a sodium hypochlorite discharge pipe (not shown) through which the completed sodium hypochlorite is discharged is formed, and a valve (not shown) is installed on the sodium hypochlorite discharge pipe to be equipped with hypochlorous acid. It may be provided to control the discharge amount of sodium hypochlorite discharged to the sodium storage (not shown).

The sodium hypochlorite formed in the reactor body 100 is transferred to a sodium hypochlorite storage unit (not shown) through a sodium hypochlorite discharge pipe (not shown), and hydrogen generated after the electrolysis reaction is a hydrogen outlet (not shown) Is discharged through the outside.

The sodium hypochlorite produced in the reactor body 100 is sent to a sodium hypochlorite storage unit (not shown), and a pipe (not shown) is used in the sodium hypochlorite storage unit (not shown) using a pump (not shown). It is injected.

On the other hand, the present invention may include control means (not shown) for controlling the operation by detecting the temperature of the reactor body 100.

At this time, the control means is provided to control the supply of electricity through a control panel (not shown).

The conventional sodium hypochlorite manufacturing reactor is connected and fixed through a screw and a shaft screw when connecting an electrode bar and a bus bar, so that the electrode bar and the bus bar are pre-contacted to the screw tab protruding from the electrode bar, causing heat generation due to an increase in resistance due to line contact. do. However, in the present invention, since the electrode rod fixing bolt 150 is fixed, and the electrode screw tab 121 is engaged only in connection regardless of fixing, the electrode rod 120 and the busbar 130 can be connected by surface contact. Since the contact area is wide, heat-related problems do not occur even at high output currents.

Accordingly, the reactor electrode connection structure for preparing sodium hypochlorite of the present invention includes an electrode rod 120 fixed to the cover plate 110 coupled at both ends of the reactor body 100 made of a cylindrical PVC housing, and the reactor body. (100) The bus bar 130 installed inside is coupled by an electrode bar screw tab 121 protruding inside the reactor body 100 of the electrode bar 120, the electrode bar 120 and the bus bar 130 ) Is provided so that one surface is in contact, the electrode bar 120 and the bus bar 130 by the electrode screw nut 140 coupled to the electrode screw tab 121 protruding through the other surface of the bus bar 130 Since it is in contact with the surface, the contact resistance is lowered, and high power supply is possible.

The reactor electrode connection structure for manufacturing sodium hypochlorite of the present invention is covered by a plurality of electrode fixing bolts 150 coupled to a busbar screw tab 132 in which a plurality of busbars 130 are formed. Combined with the plate 110 has the effect of stably fixed installation.

Reactor electrode rod connection structure for the production of sodium hypochlorite of the present invention, a plurality of electrode rod fixing bolts 150 are fixed to the busbar 130 is installed on the cover plate 110, the busbar 130 and the electrode rod 120, the electrode rod screw Combined with a nut 140, by inserting the O-ring 160 between the electrode rod 120 and the cover plate 110, there is an effect of tightly coupling the electrode rod 120 to the cover plate 110.

Reactor electrode rod connection structure for the production of sodium hypochlorite of the present invention has a small contact resistance between the electrode rod 120 and the bus bar 130 to prevent a fire accident due to heat generation, lower the failure rate, and the reactor body 100 to which electrolysis is performed. ), it is possible to minimize the generation of harmful substances in the electrolytic material, and improve the energy efficiency, thereby reducing the operation maintenance cost.

The reactor electrode connection structure for manufacturing sodium hypochlorite of the present invention has the advantage of producing sodium hypochlorite at a low concentration (less than 1%) rather than a high concentration, which is very safe for the human body and the environment.

10: reactor 11: cover
12: Terminal 13: Terminal sheet
14: screw shaft 15: nut
100: reactor body 110: cover plate
120: electrode rod 121: electrode rod screw tab
130: bus bar 131: electrode plate
132: busbar screw tab 133: electrode rod through hole
140: electrode rod screw nut
150: electrode rod fixing bolt
160: O-ring

Claims (4)

In the connection structure of the electrode installed in the reactor for producing sodium hypochlorite by electrolysis reaction,
An electrode rod 120 which is inserted and fixed through the cover plate 110 fixedly coupled at both ends of the reactor body 100 made of a PVC material housing;
The electrode plate 131 installed inside the reactor body 100 is equipped with a plate-shaped busbar 130 equipped with an electrode rod screw tab 121 protruding from the electrode rod 120 inside the reactor body 100. Combined by;
The electrode rod 120 is located on one side of the outer surface of the cover plate 110, extends inwardly of the reactor body 100 to form a plate-shaped inner side surface;
The electrode rod 120 inside side and one side of the bus bar 130 are in contact with each other;
An electrode screw nut 140 is coupled to the electrode screw tab 121 protruding from the other surface of the bus bar 130 through the bus bar 130 so that the electrode bar 120 and the bus bar 130 are in surface contact. Reactor electrode connection structure for manufacturing sodium hypochlorite.
According to claim 1,
The busbar 130 is hypochlorous acid which is fixedly installed on the cover plate 110 by an electrode fixing bolt 150 coupled to the busbar screw tab 132 which is spaced apart from the busbar 130 by a predetermined interval. Reactor electrode connection structure for sodium production.
According to claim 1,
The bus bar 130 is provided with an electrode through-hole 133 to be coupled to the electrode screw tab 121, sodium hypochlorite reactor electrode connection structure for manufacturing.
According to claim 1,
A reactor electrode connection structure for producing sodium hypochlorite in which an O-ring 160 is inserted between the cover plate 110 and the electrode rod 120 so that the cover plate 110 and the electrode rod 120 are tightly coupled.

Images