KR100652144B1 - A multi-channel valve and a working method thereof - Google Patents

Abstract

A multi-channel valve system and a method for driving the same are provided to reduce an installation cost and correct an error easily by reducing the number of pump and correcting an injection quantity of one pump. An oil guide block(10) forms an outlet path to be coupled to a side plane. A plurality of first connection paths are connected from an upper plane of the outlet path. A plurality of inlet paths having the same number with the first connection path are formed on the other side. A second connection path is formed from an end of the inlet path to an upper plane. An air providing unit(20) is connected to the inlet path which is adjacent to an inner end of the outlet path, and stores an air. An oil providing unit(30) is connected to the inlet path except the inlet which is adjacent to the inner end of the outlet path. The oil providing unit stores and provides a different characteristic liquid. A pump(40) is connected to the outlet path, and pumps an air or oil along the outlet path. A solenoid valve(50) connects an inlet to an outlet so that a first connection path is connected to a second connection path. The solenoid valve guides an air or a liquid to the outlet path by switching any one of pumps. A timer(60) is connected to the pump or the solenoid valve, and controls an operation time or switching time, and selectively provides an air and a liquid by a predetermined quantity.

Description

Multi-channel valve system for metering and driving method thereof {a multi-channel valve and a working method

       1 is a perspective view of a multi-channel valve according to an embodiment of the present invention.

2 is an exploded perspective view of a multi-channel valve according to an embodiment of the present invention.

3 is a cross-sectional view of FIG.

4 is a conceptual diagram of a multi-channel valve according to an embodiment of the present invention.

Figure 5 is a flow chart showing a method of driving a multi-channel valve according to an embodiment of the present invention.

* Explanation of symbols for main parts of drawings *

10: Euroguide block 12: discharge path

14a, 14b, 14c, 14d, 14e: funnel

20: air supply part 30b, 30c, 30d, 30e: fluid supply part

40: pump 50: solenoid valve

52: inlet port 54: discharge port

56: operation switch 60: timer

70: packing material

The present invention includes a pump connected to a timer in one discharge path, and connects a plurality of inflow paths for flowing a fluid to the discharge path to selectively flow the fluid of different properties by a single pump operation. In addition, it is possible to easily correct the injection amount of the pump used alone, and by providing an inflow path through which air flows, it is possible to precisely control the amount of the subsequent discharge amount by removing the fluid remaining on the discharge path. A multi-channel valve system for metering and a method of driving the same are provided.

BACKGROUND ART Various laboratories, chemical production plants, wastewater treatment facilities, or apparatuses used in these apparatuses require apparatuses for sequentially, selectively and quantitatively controlling the transport of various kinds of liquids.

Several automated metering systems have been developed to date, and such metering systems require the use of multi-channel valve systems for the precise selection and delivery of various solutions or samples sequentially.

However, the commercially available rotary multi-channel valve system has a problem that it is difficult to correct the pumping capacity error of the pump because the pump and the valve is used for each contact point of the flow path.

In addition, the conventional multi-channel valve system has a problem that the installation cost is high because the pump is provided for each flow path.

In addition, the conventional multi-channel valve system injects a predetermined amount by first flowing a solution or a sample through each flow path, and then injects a quantity by a previous solution or sample remaining inside the flow path when another material is injected in the next step. There was a difficult problem.

The present invention has been made in order to solve the above problems, the discharge path is formed in the flow path guide block to communicate with the outside one side and formed a plurality of inflow path in the flow path guide block solenoid discharge path and each inflow path In addition to connecting with a valve, a pump is installed in the outlet to reduce the installation cost by pumping the fluid flowing through the selected inlet with only one pump, and the inlet passage connected to the solenoid valve at the end of the outlet. It is an object of the present invention to provide a multi-channel valve system for metering and a method of driving the same, by which air is supplied to the pump to remove the fluid remaining in the discharge path so that the metered amount of fluid can be injected later.

The present invention for achieving the above object is to form a discharge path therein to communicate with one side, and to form a plurality of first connection path connected to the discharge path from the upper surface, the same number as the first connection path on the other side A flow path guide block forming a second connection path from the end of each inflow path to an upper surface, and connected to the inflow path adjacent to the inner end of the discharge path to store air A fluid supply unit connected to each of the inflow paths except for the inflow path adjacent to the inner end of the discharge path and storing and supplying liquids having different properties, and the discharge path connected to the discharge path. A pump for pumping air or liquid, and an inlet and a soil at the bottom for connecting each of the first and second connection passages. The ball is connected to the solenoid valve, which selectively opens and closes any one of the pumps during operation of the pump and guides the air or liquid of the required property to the discharge path, and is connected to the pump or the solenoid valve to control the operation time or the opening and closing time. It is an object of the present invention to provide a multi-channel valve system for metering which consists of a timer that regulates and optionally controls the metering of liquid and air.

In addition, the present invention is characterized in that the timer is connected to the pump to control the operation time of the pump, and the manual operation is provided by the operation switch in the solenoid valve.

In addition, the present invention is a pump driving step for driving the pump connected to the discharge passage of the flow path guide block by the timer, and the plurality of inflow paths connected to the plurality of fluid supply unit with the pump driving step formed in the flow path guide block Of the closed solenoid valves connected to the discharge path, only the desired solenoid valve is opened to discharge the fluid from the fluid supply part, and when the control time of the timer elapses after the fluid discharge step, the open solenoid valve closes the flow of fluid. A solenoid valve connecting the end of the discharge path and an inflow path adjacent to the discharge path to forcibly discharge the fluid remaining on the discharge path after the fluid blocking step; When the air discharge step to flow, and the control time of the timer after the air discharge step An air shutoff step of closing the open solenoid valve to block air flow; and a pump stop step of stopping the pump being driven after the air shutoff step; the fluid discharge step, the fluid shutoff step, and the air discharge step And the air blocking step is to provide a method of driving a multi-channel valve system for metering, characterized in that it is repeated in order when necessary.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in more detail. 1 is a perspective view of a multi-channel valve according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a multi-channel valve according to an embodiment of the present invention, Figure 3 is a cross-sectional view of FIG.

4 is a conceptual diagram of a multichannel valve according to an exemplary embodiment of the present invention, and FIG. 5 is a flowchart illustrating a method of driving a multichannel valve according to an exemplary embodiment of the present invention.

As shown in Figures 1 to 3, the multi-channel valve system for metering in accordance with an embodiment of the present invention flow path guide block 10, air supply unit 20, fluid supply unit, pump 40 and solenoid valve ( 50) is composed largely.

The flow guide block 10 has a rectangular parallelepiped shape to form a discharge path 12 therein along one side edge in the longitudinal direction.

At this time, the discharge path 12 is formed so that one end is communicated to open to one side of the flow path guide block 10, the other end is formed in the flow path guide block (10).

In addition, the flow path guide block 10 forms a plurality of first connection paths 13 connected to the discharge paths 12 at predetermined intervals on the upper surface thereof.

In addition, the flow path guide block 10 forms a plurality of inflow paths 14 at a predetermined depth relatively far from the discharge path 12.

That is, the inflow path 14 is formed perpendicular to the axial direction of the discharge path (12).

At this time, the inflow path 14 is provided in the same number as the first connection path (13).

In addition, the inflow path 14 forms a second connection path 15 connected to each other on the upper surface of the flow path guide block 10 corresponding to the inner end.

Thus, the first connection path 13 and the second connection path 15 are provided in pairs.

For convenience, the inflow passage 14 is the first inflow passage 14a, the second inflow passage 14b, the third inflow passage 14c in order from the inner end of the discharge passage 12 to the outer end communicating with the outside. And a fourth inflow path 14d and a fifth inflow path 14e.

On the other hand, the air supply unit 20 is connected to the first inlet path 14a adjacent to the end of the discharge path 12 formed in the flow path guide block 10.

The air supply unit 20 stores and selectively supplies air as a conventional air tank.

The fluid supply unit 30 is connected to each of the second inflow passage 14b, the third inflow passage 14c, the fourth inflow passage 14d, and the fifth inflow passage 14e.

In particular, the fluid supply unit 30 is composed of second, third, fourth, and fifth fluid supply units 30b, 30c, 30d, 30e connected to the second to fifth inlet passages 14b to 14e, respectively. In this case, fluids of different properties are stored and optionally supplied.

In addition, the pump 40 is connected to the open outer end of the discharge passage 12 to pump the fluid or air on the discharge passage 12 to the outside.

At this time, the air supply unit 20, the second to fifth fluid supply unit (30b ~ 30e) and the pump 40 are each provided with a pipe (5), each of the pipe (5) each of the first to fifth inlet passage 14a to 14e and the discharge passage 12.

In particular, the first to fifth inlet paths 14a to 14e and the outlet path 12 are coupled to one end of the connection member 7 with the inner surface by screwing the connection member 7 is first to fifth It can be easily separated and combined from the inlet (14a-14e) and the outlet (12).

The other end of the connecting member 7 is fitted to the pipe 5 extending from the air supply unit 20, the second to fifth fluid supply units 30b to 30e, and the pump 40, respectively.

The connecting member 7 also serves as a seal so that the fluid does not leak to the outside.

Meanwhile, the solenoid valve 50 selectively connects the unconnected first connection path 13 and the second connection path 15 to guide air and necessary fluid.

That is, the solenoid valve 50 has an inlet 52 and the discharge port 54 in the lower portion.

The inlet 52 is forcibly inserted into the second connection path 15 connected to the ends of the first to fifth inlet paths 14a to 14e, and the discharge port 54 is connected to the discharge path 12. It is forcibly inserted into the first connecting passage 13.

Typically, the inlet 52 and the outlet 54 are connected inside the solenoid valve 50.

Thus, the solenoid valve 50 connects the first connection path 13 and the second connection path 15.

In addition, the solenoid valve 50 is generally provided with a terminal 58, the external power is supplied selectively and automatically operated, and provided with an operation switch 56, respectively, manual operation is also possible.

As a result, the solenoid valve 50 connected to any one of the second to fifth fluid supply parts 30b to 30e required by the operation of the solenoid valve 50 is opened, so that the fluid is discharged to the discharge path 12. Pumped to outside.

In particular, the solenoid valve 50 is fastened and fixed to the flow path guide block 10 by a screw 59 does not cause fluctuations during operation.

In addition, the air supply unit 20 may inject a fixed amount because the air supply unit 20 forcibly discharges the fluid remaining in the discharge passage 12 to the outside during the operation of the pump 40.

Thus, it is natural that the air supply unit 20 is connected to the first inflow path 14a.

At this time, the solenoid valve 50 is opened only one, and the rest is kept closed.

In addition, the pump 40 or the solenoid valve 50 is connected to the timer 60 so that the driving time or opening and closing time is controlled.

For convenience, the timer 60 is connected to the pump 40 to equally control the driving time of the pump 40.

In addition, a packing material 70 is interposed between the flow path guide block 10 and the solenoid valve 50 to prevent leakage of air and fluid.

Thus, the multi-channel valve system for metering of the present invention can supply a quantity of fluid while discharging air and different fluids to the outside through one discharge path 12 using one pump 40, and the fluid Since only one pump 40 needs to be corrected at the time of the quantitative error of the correction operation is easy.

On the other hand, as shown in Figure 4 and 5, the driving method of the multi-channel valve system for metering injection according to an embodiment of the present invention is a pump driving step (S10), fluid discharge step (S20), fluid blocking step (S30) ), The air discharge step (S40), air blocking step (S50) and the pump stop step (S60) is characterized in that it is executed.

For convenience, it is assumed that the second fluid supply unit 30b first supplies a predetermined amount of fluid into the discharge path 12, and then the air supply unit 20 supplies air to the discharge path 12.

The pump driving step (S10) is a step of driving the pump 40 by the control unit or manually to control the operation time of the pump 40 by the timer 60.

In addition, the fluid discharge step S20 opens the solenoid valve 50 connected to the second fluid supply part 30b automatically (control part) or manually (operation switch) simultaneously with the pump driving step S10.

Then, the fluid inside the second fluid supply part 30b is pumped out along the second inflow path 14b, the solenoid valve 50 and the discharge path 12.

In addition, the fluid blocking step (S30) is a process of blocking the flow of the fluid by closing the solenoid valve 50 automatically or manually after quantitative guidance of the fluid supplied from the second fluid supply (30b).

At this time, the solenoid valve 50 is maintained in a closed state.

In addition, the pump 40 is operating or stopped.

In addition, the air discharge step (S40) is a process of pumping air to the outside through the discharge path 12 by automatically or manually opening the solenoid valve 50 connected to the air supply unit 20 when the pump 40 is driven. to be.

In the air discharge step (S40), the air of the air supply unit 20 remains in the discharge path 12 while continuously moving to the first inlet path 14a, the solenoid valve 50, and the discharge path 12. The fluid of the second fluid supply part 30b is forcibly discharged and removed to the outside.

After the air discharge step (S40) is finished, the pump 40 is in operation or stopped.

In addition, the air blocking step (S50) by automatically or manually closing the solenoid valve 50 connected to the air supply unit 20 in the state of completely removing the fluid remaining in the discharge passage 12 by using the air flow It is a process to block.

At this time, in order to inject the fluid of the third to fifth fluid supply unit (30c ~ 30e), the fluid discharge step (S20), the fluid blocking step (S30), the air discharge step (S40) and the air blocking step (S50) Repeat in order.

Finally, the pump stop step (S60) is a process of stopping the pump 40 by the control of the timer 60 or manually after the injection of the pump 40.

As described above, the multi-channel valve system for metering and the driving method thereof according to the present invention can reduce the number of installation of the pump because a plurality of different solutions can be sequentially injected through the discharge path using a single pump. Installation cost is low, and since only one pump needs to correct the injection amount, it is easy to correct an error.

In addition, since the discharge passage injects all the fluid remaining in the inside by flowing air before injecting another fluid after injecting one fluid, there is an effect of injecting a fixed amount.

Claims (6)

A discharge path is formed therein so as to communicate with one side, and a plurality of first connection paths are connected from the upper surface to the discharge path, and the inflow path is formed in the same number as the first connection path from the other side. A flow path guide block forming a second connection path from an end of each inflow path to an upper surface thereof; An air supply unit connected to the inflow path adjacent the inner end of the discharge path to store and supply air; A fluid supply part connected to each of the inflow paths except for the inflow path adjacent to an inner end of the discharge path and storing and supplying liquids having different properties; A pump connected to the discharge path for pumping air or liquid along the discharge path; Inlet and outlet are formed to be connected to the lower portion to connect the first and second connection paths, respectively, and selectively open and close any one of the pumps to guide air or liquid of a required property to the discharge path. A solenoid valve; And a timer connected to the pump or solenoid valve to control an operation time or an opening / closing time, and selectively controlling liquid and air to be quantitatively supplied. The method of claim 1, Multi-channel valve system for metering injection, characterized in that the discharge passage and the inlet passage is engaged with the connecting member to be easily connected and separated from the pump, the air supply and the fluid supply. The method of claim 1, The solenoid valve is a multi-channel valve system for metering, characterized in that each of the flow path guide block and screwed, fixed. The method according to claim 1 or 3, The solenoid valve is a multi-channel valve system for metering, characterized in that provided with an operation switch to enable manual operation. The method according to claim 1 or 3, A multi-channel valve system for metering injection, characterized in that the sealing material is interposed between the flow path guide block and the solenoid valve. A pump driving step of driving the pump connected to the discharge passage of the flow path guide block by the control of the timer; Out of the solenoid valve of the closed state connecting the plurality of inflow paths connected to the plurality of fluid supply unit with the discharge path formed in the flow path guide block with the pump driving step to discharge the fluid from the fluid supply unit to discharge the fluid Steps; A fluid blocking step of closing the open solenoid valve when the control time of the timer elapses after the fluid discharge step to block the flow of the fluid; An air discharge step of flowing air on the discharge path by opening only a solenoid valve connecting the inflow path adjacent to the end of the discharge path to forcibly discharge the fluid remaining on the discharge path after the fluid blocking step; An air blocking step of closing the open solenoid valve after the air discharge step to control the flow of air when the control time of the timer elapses; And a pump stopping step of stopping the pump being driven after the air blocking step, The fluid discharging step, the fluid blocking step, the air discharge step and the air blocking step are repeated in order when necessary, characterized in that the driving method of the multi-channel valve system for injection.

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