KR200267982Y1 - Apparatus for controlling chemicals input of pure water production equipment - Google Patents

Abstract

The present invention is a chemical input of the pure manufacturing equipment to maintain the chemical input uniformly by using the head pressure varying according to the amount of chemical in the chemical tank during the injection of the chemical through the ejector during pure regeneration using the pure water manufacturing equipment It is about an adjustment device

The present invention is a lower body flanged to one side of the ejector through a tube protruding from one side lower; A cylinder head member coupled to an upper portion of the lower body and having air moving holes and air discharge holes formed at both sides thereof; A drug transfer control unit mounted on the inside of the lower body to move up and down; A shaft operating means mounted to an upper portion of one side of the lower body and contacting the air adjusting member of the medicine transfer control unit through an up and down operation key; A regenerative medicine supply means mounted on one side of the lower body and supplying a chemical stored in the expansion tank of the lower body by moving the expansion control plate according to the tension and restoring force of the spring; And compressed air supply means for supplying compressed air into the lower body according to a signal of a head pressure measuring sensor installed in the chemical tank. Characterized in that comprises a.

Description

Apparatus for controlling chemicals input of pure water production equipment

The present invention relates to a device for controlling the input amount of the chemical used in the pure water manufacturing equipment, in particular during the regeneration of the pure water using the pure water manufacturing equipment to change the head pressure depending on the amount of chemicals in the chemical tank during the process of the chemical input through the ejector The present invention relates to a chemical input control device of a pure water manufacturing facility that can maintain a uniform chemical input.

In general, pure water production facilities pass pure water through an ion exchange resin layer filled in an ion exchange tower, and various organic and inorganic substances in the raw water are ion-exchanged to produce pure water (this process is called water collection). As the water collection process proceeds, inorganic ions are exchanged and accumulated in the ion exchange resin layer, thereby degrading the pure water quality.

Accordingly, it is necessary to produce pure water again by regenerating the ion exchange resin while maintaining the regeneration chemical concentration constant, and the conventional regeneration chemical concentration control and supply is automatic valve 51b when the regeneration process is started as shown in FIG. In the chemical tank 50, the chemical passes through the manual valve 51a and the automatic valve 51b, and the chemical is delivered to the ejector 2 by the discharge pressure of the regeneration pump 52, and thus the ejector ( 2) As the chemical is sucked in [the flow rate of the regeneration water inside the ejector 2 is increased, a vacuum pressure is generated, and the chemical is introduced into the ejector 2 by the vacuum pressure]. Ion exchange is carried out, and the exchanged regenerated water is discharged to the bottom.

In this process, as the regeneration chemical stored in the chemical tank 50 is supplied through the pipe 5 and the ejector 2, the water level is lowered, so that the regeneration chemical concentration is different (regeneration) by the water level difference (water head pressure difference). The initial concentration is high → the late regeneration concentration is low) and the regeneration efficiency of the ion exchange resin filled in the ion exchange tower 53 is lowered, the amount of water is reduced, the number of regeneration is increased, there is a problem that the regeneration chemical costs increase.

In order to improve this problem, the operator manually adjusts the opening of the manual valve (51a) between the chemical tank (50) and the ejector (2) in order to maintain a constant chemical concentration in the regeneration process. The concentration of the regenerative medicine is kept constant.

However, the operation method as described above has a problem that it is difficult to supply as much chemicals as necessary because the operation range varies depending on the operator and the regeneration time progresses, the operator must open the manual valve 51a little by little.

In addition, the device as shown in Figure 2, so that the operator visually checks the level of the regenerative medicine stored in the chemical tank to adjust the gap of the flow control nozzle 57 provided in the ejector 55 by turning the adjusting bolt 56 Although it is possible to adjust the amount of the regenerative medicine, this is a problem that the operator has to adjust until the end of the input of the regenerative medicine, there is a problem that it is difficult to constantly put the chemical due to the error caused by manual labor.

The present invention was devised to solve the above problems of the prior art, by using the head pressure difference (water level difference) that varies depending on the amount of the regenerative medicine stored in the chemical tank, regardless of the water level change by the dose of the regenerative medicine to the ejector. It is an object of the present invention to provide a chemical input amount control device of a pure water manufacturing facility that can maintain a constant amount of chemicals to be transferred to increase the regeneration efficiency of the resin.

1 is a cross-sectional view showing a conventional medicine dose adjusting device using an ejector.

Figure 2 is a cross-sectional view of the ejector capable of adjusting the conventional drug dosage.

Figure 3 is an exploded perspective view showing the configuration of the chemical input amount adjusting apparatus of the pure water manufacturing facility according to an embodiment of the present invention.

Figure 4a is a cross-sectional view showing the upper operation of the chemical input amount adjusting apparatus of the pure water manufacturing facility of the present invention.

Figure 4b is a cross-sectional view showing the lower operation of the chemical input amount control apparatus of the pure water manufacturing facility of the present invention.

Figure 5 is a schematic diagram showing the installation state of the chemical input amount adjusting device of the pure water manufacturing facility of the present invention.

Figure 6 is a flow diagram showing the operating flow of the chemical input amount control device of the pure water manufacturing facility of the present invention.

<Explanation of symbols for main parts of drawing>

3: cylinder head member 4: lower body

8: expansion tank 12: expansion control plate

19: air chamber 20: piston

22: shaft 23: air adjusting member

35: Up and down operation key 36: Contact member

Chemical input amount control device of the pure water production facility according to the present invention for realizing the above problem is passed through the manual and automatic valves for the chemicals in the chemical tank is delivered to the ejector by the regeneration pump, the chemical is sucked in the ejector ion exchange An apparatus for regenerating pure water through a lower body, the lower body being flanged to one side of the ejector through a tube protruding from one side; A cylinder head member coupled to an upper portion of the lower body and having air moving holes and air discharge holes formed at both sides thereof; A drug transfer control unit mounted on the inside of the lower body to move up and down; A shaft operating means mounted to an upper portion of one side of the lower body and contacting the air adjusting member of the medicine transfer control unit through an up and down operation key; A regenerative medicine supply means mounted on one side of the lower body and supplying a chemical stored in the expansion tank of the lower body by moving the expansion control plate according to the tension and restoring force of the spring; And compressed air supply means for supplying compressed air into the lower body according to a signal of a head pressure measuring sensor installed in the chemical tank. Characterized in that comprises a.

In the present invention, the lower body is in communication with the expansion tank in the horizontal direction therein, the inner central portion is formed with a first stop groove having a diameter larger than the inner diameter of the lower body, the upper portion of the first stop groove is the first air movement An air chamber communicating with the hole is formed, a second stop groove is formed in the upper portion of the air chamber, and a compressed air inlet hole is formed directly under the screw hole to which the shaft operating means is coupled.

In addition, in the present invention, the medicine feed adjusting unit has a screw thread formed at both ends and a guider formed at the center, and a groove having a predetermined shape at both sides, and an air adjusting member mounted on the guider and guided up and down, and an upper portion of the shaft. And a piston coupled to the side threads, a medicine transfer control plate coupled to the lower side threads of the shaft, and a packing mounted on an outer surface of the shaft to prevent backflow of the chemical.

In addition, the shaft operation means in the present invention, the upper and lower operation keys, both ends are processed in a semi-circular shape, a cylindrical contact member into which one end of the upper and lower operation keys are inserted, and a spring mounted on one side of the contact member; And a first spring cover in which the spring is embedded.

In addition, the compressed air supply means in the present invention is a head pressure measuring sensor coupled to the lower side of the chemical tank, the operation panel is connected to the head pressure measuring sensor to calculate and control the pressure of the compressed air, the air chamber It is characterized in that it comprises a control valve connected to the compressed air inlet hole to control the pressure of the compressed air according to the control of the operation panel, and a pressure sensor installed between the control valve and the compressed air inlet hole.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing the configuration of the chemical input device of the pure water manufacturing facility according to the embodiment of the present invention, Figure 4a is a cross-sectional view showing the upper operation of the chemical input device of the pure water manufacturing equipment of the present invention, Figure 4b Is a cross-sectional view showing a lower operation of the chemical input amount control device of the pure water manufacturing facility of the present invention.

As shown in Figure 3 to 4b, the lower body (4) is a pipe shape as a whole, the thread (4-1) protrudes on the top, the ejector through a tube protruding from one side lower An expansion tank (8) which is flange-coupled to one side of (2), and supplies the medicine without disconnection during the closing stroke during the reciprocating stroke of the drug transport control plate 21, which will be described later as a 'b'-shaped cross section. Is communicated in the horizontal direction, and a screw hole 8-1 is formed at one side of the expansion tank 8.

In addition, the inner central portion of the lower body 4 is formed with a first stop groove 29 having a diameter slightly larger than the inner diameter, the upper portion of the first stop groove is a screw hole formed in the side of the lower body 4 An air chamber 19 having a '-' shaped cross section is formed through 19-2, and a second stop groove having the same shape as the first stop groove 29 is formed on the air chamber 19. (28) is formed.

In addition, a semicircular compressed air inlet hole 19-1 is formed directly below the screw hole 19-2, and the air chamber 19 has a first air movement having a 'b' shaped cross section. The hole 25 is in communication.

The cylinder head member (3) is in the form of a cap (cap) is coupled to the thread (4-1) of the lower body (4) through the lower portion, and is in communication with the first air movement hole 25 on one outer surface A second air movement hole (3-1) having a '-' shaped cross section is formed, the air discharge hole for discharging the air pressure in the diagonal direction with the second air movement hole (3-1) on the other side ( 3-2) is formed, a silencer 27 is attached to the air discharge hole (3-2) that can block the noise of the discharged air.

The drug transfer control unit is formed with a threaded protrusion protruding at both ends of the shaft 22 having a predetermined diameter, the central portion of the shaft 22 is formed with a guider portion 22-1 of a smaller diameter to be described later air control member ( 23 is guided, and the shaft 22 is inserted into the inner hole of the lower body 4 described above.

In addition, the piston 20 is screwed to the upper thread of the shaft 22, the adjustment plate 21 for drug transfer is screwed to the lower thread, the chemicals are lower body (on the outer surface of the shaft 22) The backflow preventing packing 33 is fixedly mounted so as not to flow into the inner hole of 4).

In addition, the air adjusting member 23 is mounted on the outer surface of the guider portion 22-1, and has a semicircular shape for driving the upper and lower operating keys 35 to be described later on one side central portion of the air adjusting member 23. The groove 32 is formed, and the other side lower portion is formed with an air adjusting groove 24 having a '-' shaped cross section.

The shaft operating means has a hexahedron shape, one end of the upper and lower operation keys 35 having both ends processed in a semicircular shape is inserted into the groove 32 of the air control member 23, and the upper and lower control keys 35 The other end portion of the cylindrical contact member 36 is inserted into the straight groove 39 formed in the head portion, the contact member 36 together with the spring 37, the inside of the first spring cover 38 having a cap shape Embedded in the first spring cover 38 is coupled to the screw hole (4-1) of the lower body (4) through a screw thread protruding on one side.

The regenerative medicine supply means is formed of an expansion control plate 12 having a diameter equal to a large diameter of the expansion tank 8 is inserted into the expansion tank 8, and has a shape identical to that of the first spring cover 38. The spring 13 is built into the two-spring cover 14 and is coupled to the screw hole 8-1 of the lower body 4.

Figure 5 is a schematic diagram showing the installation state of the chemical input amount control device of the pure water manufacturing facility of the present invention.

As shown in FIG. 5, the compressed air supply means is flange-coupled to a head pressure sensor 10 to a pressure pipe protruding from one side lower portion of the chemical tank 50, and to the head pressure sensor 10. An operation panel 11 for calculating and controlling the pressure of the compressed air is connected through a cable, and a control valve 6 for controlling the pressure of the compressed air is connected to the operation panel 11, but the control valve 6 Is flanged on the pipe 6b connected to the compressed air inlet hole 19-1 of the air chamber 19, and the pressure sensing between the control valve 6 and the compressed air inlet hole 19-1. The sensor 6a is provided.

Referring to the operation of the chemical input amount control device of the pure water manufacturing facility according to the present embodiment configured as described above are as follows.

Figure 6 is a flow diagram showing the operating flow of the chemical input amount control device of the pure water manufacturing facility of the present invention.

As described in the related art and shown in FIGS. 3 to 6, when the regeneration process is started in the process of regenerating the ion exchange resin to produce pure water again, the regeneration pump 52 is started (100) and the automatic valve ( 51b) is opened to supply the regenerative medicine (200).

At this time, the head pressure in the chemical tank 50 is measured by the head pressure measurement sensor 10 (300), the measured head pressure is sent to the operation panel 11, the control panel 11 in the control valve (6) calculates the opening position value and sends a signal to the control valve (6), the control valve (6) is compared to the compressed air pressure measured by the pressure sensor (6a) to control the opening position of the control valve (6) Control the compressed air pressure through (400).

Air of a constant pressure controlled by the control valve (6) is introduced into the air chamber (19) of the piston 20 through the air adjusting member (23) and the first air movement hole (25) The upper part is moved to push the piston 20.

At this time, the upper and lower operation keys 35, which are horizontal in the grooves 32 of the air adjusting member 23 and the grooves 39 of the contact member 36, are horizontal at the point of being horizontal. When the lowering operation is made to be inclined downward in the horizontal state by the elasticity of the spring 37 that pushed the contact member 36 is sharply down, and at the same time push the air control member 23 down 1 will be seated in the stop groove 29

The air introduced into the air chamber 19 is the upper portion of the air chamber 19 while the air discharge hole 3-2, which is covered by the piston 20 body, is opened at the same time as the completion of the lowering movement of the piston 20. Filled air pressure is discharged to the outside through the air discharge hole (3-2) to remove the pressure of the upper portion of the piston (20)

Referring to the upward movement of the piston 20, the air flowing into the air chamber 19 through the compressed air inlet hole (19-1) through the central passage of the shaft 22 and the lower body (4) the piston Moved to the lower part of the 20, the filled air raises the piston 20, and ascending is completed when the raised piston 20 is seated in the second stop groove 28.

At this time, during the ascending movement of the piston 20, the air adjusting member 23 is caught by the lower end of the guider portion 22-1 of the shaft 22 and pushed up, and the upper and lower operation keys 35 are in a horizontal state. When a little more inclined upward from the spring 37 by the elasticity of the air control member 23 is in close contact with the second stop groove 28, the air introduced into the air chamber 19, the piston 20 Blocked so as not to move further downward, the air movement adjusting groove 24 of the air adjusting member 23 is the same as the position of the first air movement hole 25, wherein the first air movement hole 25 And the second air movement hole 3-1 are in communication with each other.

At this time, the lower portion of the piston 20 is completed and the air discharge hole (3-2) is in communication with each other, the pressure of the lower portion of the piston 20 is discharged to the outside through the silencer 27, the air below the piston 20 There is no pressure.

In addition, the air flows into the air chamber 19 through the air movement adjusting groove 24 and the first air movement hole 25 of the air adjusting member 23 to the upper portion of the piston 20 to move the piston. The descent of 20 begins.

The drug in the pipe 5 is transferred to the ejector 2 by the operation of the medicine transport control plate 21 fixedly connected to the piston 20 by the repeated and continuous up and down movement of the piston 20.

The up and down movement of the piston 20 is determined by the air pressure flowed into the air chamber 19, the operation frequency is determined, and as the process proceeds, the regenerative medicine is supplied, so that the head pressure in the chemical tank 50 is lowered and operated. The target value calculated by the panel 11 is controlled to be higher than the initial air pressure, so that the number of times of operation of the piston 20 is faster (faster chemical transfer) to control the reciprocating motion of the piston 20 (500).

On the other hand, during the downward movement of the piston 20 during the reciprocating motion of the piston 20, a part of the regenerated chemical conveyed when the chemical in the pipe (5) is introduced through the chemical transport control plate 21 is the chemical pressure to be transferred By the expansion control plate 12 configured in the expansion tank (8) is pushed and stored in the expansion tank (8), and the ascending process during the reciprocating process of the piston 20, the chemical transport control plate 21 is closed to the pipe (5) If the chemical is not delivered to the regeneration chemical stored in the expansion tank (8) is pushed to the expansion control plate 12 by the elasticity of the spring 13, the supply of regeneration medicine is supplied irrespective of the reciprocating piston 20 Regenerative medicine is supplied.

When the above process is completed and the supply of the regenerative medicine is completed, the automatic valve 51b and the control valve 6 wait in a closed state (600).

As described above with reference to the illustrated drawings the drug input amount adjusting apparatus of the pure water manufacturing equipment according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, within the technical scope of the design Of course, various modifications may be made by those skilled in the art.

The chemical input control device of the pure water production facility of the present invention as described above can maintain a constant concentration of the regenerated chemical until the regeneration process is completed, so that the quality of the pure water is increased during the regeneration process, and the regeneration chemical ratio is reduced by reducing the number of regeneration. It is possible to reduce the cost, and the operator does not have to adjust the manual valve in a noisy place, so that the worker can be prevented from industrial accidents.

Claims (5)

In the device in the chemical tank is passed through the manual and automatic valve to the ejector by the regeneration pump, the chemical is sucked in the ejector, the device for regenerating pure water through ion exchange, A lower body flanged to one side of the ejector through a tube protruding from one lower side; A cylinder head member coupled to an upper portion of the lower body and having air moving holes and air discharge holes formed at both sides thereof; A drug transfer control unit mounted on the inside of the lower body to move up and down; A shaft operating means mounted to an upper portion of one side of the lower body and contacting the air adjusting member of the medicine transfer control unit through an up and down operation key; A regenerative medicine supply means mounted on one side of the lower body and supplying a chemical stored in the expansion tank of the lower body by moving the expansion control plate according to the tension and restoring force of the spring; And Compressed air supply means for supplying compressed air into the lower body according to a signal of a head pressure measuring sensor installed in the chemical tank; Chemical input amount adjusting device of the pure water manufacturing equipment, characterized in that comprises a. The method of claim 1, The lower body has an expansion tank communicating in the horizontal direction therein, the inner central portion is formed with a first stop groove having a diameter larger than the inner diameter of the lower body, the upper portion of the first stop groove is in communication with the first air movement hole An air chamber is formed, and a second stop groove is formed in an upper portion of the air chamber, and a compressed air inlet hole is formed directly under the screw hole to which the shaft operating means is coupled. Regulator. The method of claim 1, The chemical transfer control unit has a screw thread formed at both ends and a guider formed at the center thereof, a groove having a predetermined shape at both sides thereof, and an air adjusting member mounted on the guider portion and guided up and down, coupled to the upper thread of the shaft. And a piston, a chemical transfer control plate coupled to a lower thread of the shaft, and a packing mounted on an outer surface of the shaft to prevent backflow of the chemical. The method of claim 1, The shaft actuating means includes a cylindrical contact member into which one end of each of the upper and lower actuating keys is inserted into a semicircular shape, one end of the upper and lower actuating keys, a spring mounted to one side of the contact member, and the spring is built-in. Chemical dosage control device for pure water manufacturing equipment, characterized in that it comprises a first spring cover. The method according to claim 1 or 2, The compressed air supply means includes a head pressure measuring sensor coupled to one side lower portion of the chemical tank, an operation panel connected to the head pressure measuring sensor to calculate and control the pressure of the compressed air, and a compressed air inlet hole of the air chamber. And a control valve connected to control the pressure of the compressed air according to the control of the operation panel, and a pressure sensor installed between the control valve and the compressed air inlet hole.