KR101696107B1

KR101696107B1 - Supply apparatus for mixed solution and supply method using the same

Info

Publication number: KR101696107B1
Application number: KR1020150181033A
Authority: KR
Inventors: 이경
Original assignee: 주식회사 포스코
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2017-01-13

Abstract

The present invention relates to a mixed solution supply device capable of easily mixing and supplying a plurality of solutions and a supply method using the same. The mixed solution supply apparatus according to an embodiment of the present invention includes a fixed tank having a plurality of accommodating spaces and a movable tank closely mounted on one surface of the fixed tank and inserted to be movable, And the solution contained in each of the containing spaces can be discharged and mixed through the sequentially opened openings.

Description

TECHNICAL FIELD [0001] The present invention relates to a mixed solution supply apparatus and a supply method using the same,

The present invention relates to a mixed solution supply device capable of easily mixing and supplying a plurality of solutions and a supply method using the same.

Steel and metal materials are painted for the purpose of corrosion prevention and design. Particularly, materials applied to automobiles are tested by corrosion quality standards and they are evaluated by evaluation.

As a method of corrosion evaluation of automotive materials, the coated material is subjected to electrodeposition coating, and the material is subjected to a complex process through CCT equipment (Cyclic Corrosion Tester) for a certain period of time.

At this time, the manufacturing solution is sprayed onto the surface of the workpiece during the course of the experiment. In the conventional case, the solution used in the corrosion experiment is prepared in advance and stored in the tank.

However, when various solutions are mixed and stored in a tank, a precipitate is generated by reaction with the reagent used over time. The generated sediment flows into the tank, the auxiliary tank, the solution supply line, the injection nozzle, and the like, which causes the supply line and the nozzle to become clogged. Therefore, there is a problem that the performance of the equipment in operation is lowered as well as the experiment is stopped.

In addition, since the dismantling, cleaning, and assembling processes of the equipment are repeatedly performed in order to remove the sediment introduced into the supply line, the injection nozzle, etc., there is a problem that much time and manpower are required.

It is an object of the present invention to provide a mixed solution supply apparatus capable of minimizing the generation of sediments and a supply method using the same.

The mixed solution supply apparatus according to an embodiment of the present invention includes a fixed tank having a plurality of accommodating spaces and a movable tank closely mounted on one surface of the fixed tank and inserted to be movable, And the solution contained in each of the containing spaces can be discharged and mixed through the sequentially opened openings.

In the present embodiment, the fixed tank includes an outer wall; An inner wall disposed in an inner space of the outer wall; And a plurality of partition walls connecting the outer wall and the inner wall and partitioning the accommodation spaces.

In the present embodiment, the inner wall of the fixed tank and the movable tank may be provided in a pipe shape corresponding to each other, and the movable tank may be inserted to be movable in the inner space of the inner wall.

The present invention may further include a contact member attached to the outer circumferential surface of the movable tank or the outer circumferential surface of the inner wall of the fixed tank to fill a gap between the movable tank and the fixed tank.

In this embodiment, the apparatus may further include a driving unit connected to the movable tank to move the movable tank up and down.

In the present embodiment, the driving unit may include a driving unit coupled to the fixed tank, and a connecting unit connecting the driving unit and the movable tank to transmit the motion of the driving unit to the movable tank.

In the present embodiment, the movable tank has a storage space, and the solution discharged through the inlet may be mixed with the storage space.

The apparatus may further include a supply unit connected to the movable tank for supplying the mixed solution stored in the movable tank to the outside.

The apparatus may further include a water level sensor disposed inside the movable tank for sensing a level of the mixed solution stored in the movable tank.

In the present embodiment, the movable tank may be driven up and down, and the plurality of injection ports may be linearly arranged along the moving direction of the movable tank.

According to another aspect of the present invention, there is provided a mixed solution supply method including the steps of disposing a solution in a fixed tank having a plurality of accommodating spaces, mixing the solution in a movable tank and supplying the mixed solution to the outside, And a step of replenishing the mixed solution in the movable tank when the level of the stored mixed solution is below a threshold value, and the replenishing step is performed when the movable tank closely mounted on one surface of the fixed tank is moved, And sequentially discharging the solutions stored in the receiving spaces of the fixed tank to the movable tank.

The mixed solution supply apparatus according to the present invention can minimize the generation of deposits according to the storage and preparation of the mixed solution, thereby preventing the supply line, the injection nozzle, and the like from being clogged by the inflow of the sediment.

1 is a perspective view schematically showing a mixed solution supply apparatus according to an embodiment of the present invention;
2 is a cross-sectional view taken along line II 'of the mixed solution supply apparatus shown in FIG. 1;
Figs. 3 to 6 are diagrams for explaining a mixed solution supply method according to the present embodiment. Fig.

Prior to the detailed description of the present invention, the terms or words used in the present specification and claims should not be construed as limited to ordinary or preliminary meaning, and the inventor may designate his own invention in the best way It should be construed in accordance with the technical idea of the present invention based on the principle that it can be appropriately defined as a concept of a term to describe it. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the elements in the accompanying drawings are exaggerated, omitted, or schematically shown, and the size of each element does not entirely reflect the actual size.

FIG. 1 is a perspective view schematically showing a mixed solution supply apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II 'of the mixed solution supply apparatus shown in FIG.

1 and 2, the mixed solution supply apparatus 1 according to the present embodiment includes a fixed tank 10, a movable tank 20, a drive unit 30, and a supply unit 40.

The fixed tank 10 may be formed in a ring shape and has an accommodation space S in which the solution L1 is stored.

The fixed tank 10 includes an outer wall 11, an inner wall 12 disposed at the inner center of the outer wall 11, and an outer wall 11 connecting the inner wall 12 and partitioning the accommodation space S into a plurality of And barrier ribs 13.

The outer wall 11 forms the entire outer shape of the fixed tank 10, and is formed in the shape of a pipe of a cylinder in the present embodiment. However, the present invention is not limited thereto, and it may be formed in various shapes as long as it can provide the accommodation space S in a polygonal shape, an elliptical shape, or the like.

The inner wall 12 is formed in a pipe shape having a smaller diameter than the outer wall 11 and is disposed in the inner space of the outer wall 11. [ The inner wall 12 and the outer wall 11 are connected to each other through the bottom surface 14 so that an accommodation space S is formed between the inner wall 12 and the outer wall 11 so that the solution L1 can be stored .

The inner wall 12 according to the present embodiment is formed in a cylindrical shape like the outer wall 11 and is disposed so as to be concentric with the outer wall 11. [ However, it is not limited thereto, and it is also possible to form the inner wall 12 with a pipe (for example, a polygonal or ellipsoidal pipe) different from the outer wall 11.

Also, the inner wall 12 according to the present embodiment may not be concentric with the outer wall 11 and may be disposed at a position offset to one side. In addition, in the present embodiment, the fixed tank 10 is configured such that the outer wall 11 and the inner wall 12 are spaced apart from each other, but the fixed tank 10 is formed so that the outer wall 11 and the inner wall 12 partially contact each other. As shown in Fig.

A plurality of partition walls 13 are disposed between the inner wall 12 and the outer wall 11. [ The partition wall (13) divides the accommodation space (S) formed between the inner wall (12) and the outer wall (11). At this time, different solutions (L1) are stored in each of the divided accommodation spaces (S). Therefore, in the fixed tank 10 according to the present embodiment, the receiving space S is divided by more than the total number of the solutions L1 to be mixed.

A plurality of inlet ports 17 are formed in the inner wall 12.

The inlet port 17 is a passage through which each of the solutions L1 stored in the accommodation space S moves toward the movable tank 20 side. Therefore, the inlet 17 is formed for each of the receiving spaces S and a plurality of the inlet ports 17 are spaced apart from each other along the longitudinal direction of the inner wall 12. [ The size of the inlet ports 17 may be the same.

In this embodiment, three holding spaces S are provided in the fixed tank 10. Thus, the inlet ports 17 are arranged in three rows at positions corresponding to the respective receiving spaces S, respectively, along the longitudinal direction of the inner wall 12.

In addition, the inlet ports 17 of each accommodation space S are arranged on the same horizontal plane. Here, the horizontal plane means a plane formed in the radial direction of the fixed tank 10.

Thus, the inlet ports 17 of each containing space S are spaced apart in the longitudinal direction, but are all spaced apart at the same interval. And may be linearly arranged along the moving direction of the movable tank 20. [

The fixed tank 10 constructed as described above may be formed of a PVC material to minimize the influence of the stored solution L1. However, the present invention is not limited thereto.

The movable tank 20 is inserted and arranged in the inner space formed by the inner wall 12 of the fixed tank 10. [ Accordingly, the movable tank 20 is formed in a shape similar to the inner wall 12 of the fixed tank 10 and is formed to be smaller than the inner diameter of the inner wall 12 because it is inserted into the inner wall 12.

In addition, the movable tank 20 is formed in the shape of a container with its lower end closed. Therefore, the inside of the movable tank 20 is used as a storage space in which the mixed solution (L2 in FIG. 3) is stored.

The length of the movable tank 20 is equal to or longer than the length of the inner wall 12. However, the present invention is not limited thereto and may be formed to be smaller than the length of the inner wall 12 depending on the position of the inlet 17.

A sealing member (25) is disposed on the outer peripheral surface of the movable tank (20). The sealing member 25 covers the gap between the inner circumferential surface of the inner wall 12 of the fixed tank 10 and the outer circumferential surface of the movable tank 20 so that the solution L1 is supplied to the movable tank 20 and the inner wall 12 of the fixed tank 10 ).

The sealing member 25 may be formed of a rubber material, but is not limited thereto. The sealing member 25 may be variously used as long as it has elasticity and ductility, such as silicone or resin, or can effectively fill a gap

On the other hand, in the present embodiment, the case where the sealing member 25 is formed on the outer peripheral surface of the movable tank 20 is described as an example, but the present invention is not limited thereto. For example, it is also possible to dispose the sealing member 25 on the inner peripheral surface of the inner wall 12 of the fixed tank 10. In this case, an inlet is also formed in the sealing member 25 for discharging the solution L1.

The driving unit 30 moves the movable tank 20. [ To this end, the driving unit 30 may include a driving unit 31 and a connecting unit 35.

The drive unit (31) is disposed outside the fixed tank (10) and provides a driving force to move the movable tank (20).

In this embodiment, the drive unit 31 is fixedly fastened to the outer wall 11 of the fixed tank 10. Therefore, a plate-shaped connecting portion 35 is used to transmit the driving force of the driving unit 31 to the movable tank 20.

The drive unit 31 may be configured in the form of a hydraulic cylinder. That is, the plunger 32 may be configured to protrude outward by a pressure externally provided.

One end of the connecting portion 35 is connected to the plunger 32 of the drive unit 31 and the other end is connected to the bottom surface 14 of the movable tank 20. Accordingly, as the plunger 32 is projected to the outside, the movable tank 20 connected to the connecting portion 35 moves together in the protruding direction of the plunger 32.

The supply unit 40 discharges the mixed solution (L2 in Fig. 3) stored in the movable tank 20 to the outside of the movable tank 20. [ To this end, the supply section 40 may include a supply line 41 and a discharge line 45.

The supply line 41 supplies the mixed solution L2 to the experimental equipment. To this end, a pump 42 may be arranged in the supply line 41. In addition, an injection nozzle 43 may be provided at one end of the supply line 41 to inject the mixed solution L2 onto the surface of the workpiece disposed in the chamber.

The discharge line 45 is used to remove the remaining mixed solution L2 that is used. And therefore may include at least one valve 46 for discharging the mixed solution L2 only when necessary.

Both the supply line 41 and the discharge line 45 are connected through the bottom surface of the movable tank 20. The supply line 41 and the discharge line 45 may be connected to the movable tank 20 through a connection portion 35 connected to the bottom surface 14 of the movable tank 20. [

In addition, the mixed solution supply apparatus 1 according to the present embodiment may further include a water level sensor 50 and a controller (not shown).

The water level detection sensor 50 detects the water level of the mixed solution L2 stored in the inside of the movable tank 20, The level detecting sensor 50 is connected to the controller and notifies the controller or the operator of the mixed solution L2 stored in the movable tank 20 when the level of the mixed solution L2 falls below a threshold value.

The control unit is connected to the level sensor 50 and the driving unit 31 of the driving unit 30. The control unit drives the driving unit 31 based on a signal received from the level sensor 50, .

The mixed solution supply apparatus 1 according to the present embodiment having such a structure has the fixed tank 10 having a plurality of accommodating spaces S and the movable tank 20 being fixed to one surface of the fixed tank 10 Disposed and movable. The fixed tank 10 is provided with a plurality of inlet ports 17 which are sequentially opened by the movement of the movable tank 20. The solution L1 contained in each of the above- (17) to the movable tank (20) and mixed.

Therefore, the replenishment of the mixed solution L2 is repeatedly performed by the movement of the movable tank 20.

3 to 6 are diagrams for explaining a mixed solution supply method according to the present embodiment. A solution supply method using the mixed solution supply apparatus 1 according to the present embodiment will be described with reference to these.

First, as shown in FIG. 2, a solution L1 to be mixed is placed in each containing space S of the fixed tank 10. At this time, the movable tank 20 is maximally raised so that the charging port 17 of the fixed tank 10 is kept closed by the movable tank 20.

3, the control unit lowers the movable tank 20 a predetermined distance through the drive unit 31 to expose the charging port 17 (Step 1). Therefore, the movable tank 20 moves by the distance that the inlet ports 17 of each containing space S are exposed at least one.

The solutions L1 stored in the fixed tank 10 are introduced into the internal space of the movable tank 20 through the exposed inlet ports 17 and mixed with each other (Step 2). At this time, only the solutions (L1) located above the exposed injection port (17) can be introduced into each of the solutions (L1) into the operation tank (20).

When the mixed solution L2 is formed in the movable tank 20, as shown in FIG. 4, the control unit supplies the mixed solution L2 to the experimental equipment through the supply line 41. As shown in FIG.

As the mixed solution (L2) is supplied to the experimental equipment, the level of the mixed solution (L2) stored in the movable tank (20) gradually decreases. When the water level sensor 50 senses that the water level of the mixed solution L2 is lowered below the threshold value, the water level sensor 50 notifies the controller of the level of the mixed solution L2 (Step 3).

The control unit then proceeds to Step 1 and moves the movable tank 20 down through the drive unit 31 by a predetermined distance as shown in FIG. At this time, the movable tank 20 moves by the distance that the other injection ports 17 are exposed.

6, the steps 1 to 3 are repeated until all the solution L1 is used, and the mixed solution L2 is supplied to the experimental equipment. In this process, The mixed solution L2 is replenished repeatedly.

Meanwhile, the control unit of the present embodiment can be understood as an automatic control using a computer, but is not limited thereto, and may include manual control by an operator.

For example, if the water level sensor 50 notifies the operator of the water level insufficiency of the mixed solution L2, the operator can drive the drive unit 31 to add the mixed solution L2.

According to this configuration, the mixed solution supply device according to the present embodiment repeatedly manufactures and supplies a small amount of the mixed solution, without preparing the entire mixed solution in advance.

Therefore, it is possible to minimize the generation of precipitates according to the storage and preparation of the mixed solution, and it is possible to prevent the supply line, the injection nozzle, and the like from being clogged by the inflow of sediment.

In addition, since the mixed solution is prepared before use, the quality of the solution can be maintained constantly, and the waste of the solution due to the component change can be minimized by preliminary mixing.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.

For example, although in the above-described embodiment, the sizes of the inlet ports are all the same, the present invention is not limited thereto, and the size of the inlet ports may be different for each of the receiving spaces. This can be defined corresponding to the mixture ratio of the solution to be mixed. That is, the accommodation space in which the solution to be mixed with a relatively large amount is formed is formed to have a large inlet port or a large number of the inlet ports, and the solution space in which the relatively small amount of the solution is to be mixed can be formed with a small or small number of inlet ports .

In the above-described embodiment, the drive unit is coupled to the outer wall of the fixed tank. However, the present invention is not limited to this, and the drive unit may be disposed at the lower portion of the operation tank. In this case, since the plunger of the drive unit can be directly connected to the operation tank, the connection portion can be omitted.

It is also possible to configure the drive unit in the form of a motor instead of a hydraulic cylinder. In this case, the movable tank and the drive unit can be connected by using a gear or a belt / pulley.

In addition, although in the above-described embodiment, the fixed tank is formed in a ring shape and the movable tank is inserted into the center portion of the fixed tank, the present invention is not limited thereto, It can be placed in the center of the tank. In addition, the fixed tank and the movable tank are both formed in a polygonal column shape, and the respective side surfaces are configured to be in contact with each other.

1: mixed solution supply device
10: Fixed tank
20: Operation tank
30:
40:
50: Level sensor

Claims

A fixed tank having a plurality of accommodation spaces; And
A movable tank disposed in close contact with one surface of the fixed tank and inserted to be movable;
/ RTI >
The fixed tank is provided with a plurality of inlet ports sequentially opened by the movement of the movable tank,
Wherein the solution accommodated in each of the accommodating spaces is discharged and mixed through the sequentially opened inlet.

2. The apparatus according to claim 1,
outer wall;
An inner wall disposed in an inner space of the outer wall; And
A plurality of partition walls connecting the outer wall and the inner wall and partitioning the accommodation spaces;
And the mixed solution supply device.

3. The method of claim 2,
Wherein the inner wall of the fixed tank and the movable tank are provided in a pipe shape corresponding to each other,
Wherein the movable tank is inserted into the inner space of the inner wall so as to be movable.

The method of claim 3,
Further comprising a contact member attached to an outer circumferential surface of the movable tank or an outer circumferential surface of an inner wall of the fixed tank to fill a gap between the movable tank and the fixed tank.

The method according to claim 1,
And a driving unit connected to the movable tank to move up and down the movable tank.

6. The apparatus according to claim 5,
A driving unit coupled to the fixed tank; And
A connection unit connecting the drive unit and the movable tank and transmitting the movement of the drive unit to the movable tank;
And the mixed solution supply device.

The apparatus according to claim 1,
Wherein the solution discharged through the inlet is introduced into the storage space and mixed.

8. The method of claim 7,
And a supply unit connected to the movable tank for supplying the mixed solution stored in the movable tank to the outside.

8. The method of claim 7,
And a water level sensor disposed inside the movable tank for sensing the level of the mixed solution stored in the movable tank.

The method according to claim 1,
Wherein the movable tank is moved up and down, and the plurality of injection ports are linearly arranged along the moving direction of the movable tank.

Disposing a solution in a fixed tank having a plurality of accommodation spaces;
Mixing the solution in a movable tank and supplying the mixed solution to the outside; And
Sensing the level of the mixed solution stored in the movable tank, and replenishing the mixed solution in the movable tank if the level is below a threshold value;
/ RTI >
Wherein said supplementing comprises:
And a step of discharging the solutions stored in the receiving spaces of the fixed tank to the movable tank as the inlet ports formed in the fixed tank are sequentially opened as the movable tank closely disposed on one surface of the fixed tank moves, Way.