System for automatically controlling operation of sodium ion exchanger on line

Abstract

The utility model relates to the technical field of application of sodium ion exchangers, in particular to a system for automatically controlling operation of a sodium ion exchanger on line, and aims to solve the problems that in the current soft water preparation process of water treatment, due to the fact that process parameters are not accurately and timely monitored and resin layers are extremely easy to be disordered, the operation is inconvenient and the like. Generally, the waste of new backwashing water is serious, the exchange capacity of equipment is insufficient, and finally, the overall efficiency of the sodium ion exchanger for preparing soft water for water treatment is relatively low. The system is mainly composed of a pneumatic control valve, a turbidity electromagnetic valve, a turbidity meter, a turbidity meter sampling point, a conductivity meter sampling point and the like, flow and turbidity are automatically controlled through the pneumatic control valve, a backwashing node is monitored and controlled on line through conductivity, and the purpose of comprehensively improving efficient operation of the softener is achieved. And the unmanned operation efficiency and stability of the sodium ion exchanger in the circulating water pump house are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium ion exchanger application, in particular to a system for automatically controlling the operation of a sodium ion exchanger online. Background Art

[0002] The circulating water pump room is responsible for the supply of cooling circulating water for the furnaces and supporting equipment of each unit. In the water treatment soft water preparation process, ion exchange water treatment technology is required to remove ionic impurities in the water. The water treatment method used by the circulating water pump room is to treat the raw water by ion exchange to produce softened water with a hardness of less than 175umol / L. The process used is a non-top pressure countercurrent regeneration ion exchange process. The operation of the exchanger requires small backwashing, backwashing, drainage, regeneration liquid, replacement, small forward washing, forward washing, normal operation and other operations. With the operation of the industry and mine, the current softener often has the following problems: During the regeneration process of the exchanger, many key parameters cannot be monitored online. The backwashing process is controlled by time and the experience of the operators and on-site observation, resulting in waste of new water during backwashing; the forward washing operation cannot be controlled, the resin appears disordered and over-sulfurized, the probability of crushing and wear increases, and the exchange capacity decreases; the forward washing intensity is too large, and the backwashing water flow rate is too high, which may cause the resin layer to not be completely dispersed, the fluidity of the resin is reduced, and the middle drainage device sandwiched in the dry resin layer is lifted up, which is easy to cause damage to the middle drainage device. Utility Model Content

[0003] The utility model provides a system for automatically controlling the operation of a sodium ion exchanger online, so as to solve the problems existing in the above background.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A system for automatically controlling the operation of a sodium ion exchanger online comprises a water inlet pipe connected to one side of the sodium ion exchanger, a softened water outlet pipe connected to the other side of the sodium ion exchanger, an exhaust pipe connected to the top of the sodium ion exchanger, a pneumatic regulating valve provided on the water inlet pipe, a middle exhaust valve connected to the pneumatic regulating valve, an exhaust valve provided on the exhaust pipe, a turbidity meter connected to the exhaust pipe, and a conductivity meter connected to the softened water outlet pipe.

[0006] Furthermore, a first water inlet valve is provided on the water inlet pipe, and the pneumatic regulating valve is connected to the first water inlet valve, and the pneumatic regulating valve is also connected to a small backwash water inlet valve.

[0007] Furthermore, a large backwash inlet valve, a regeneration liquid inlet valve, a forward wash drain valve and a backwash drain valve are provided in the sodium ion exchanger, and the large backwash inlet valve, the regeneration liquid inlet valve, the forward wash drain valve and the backwash drain valve are all connected to the pneumatic regulating valve.

[0008] Furthermore, the exhaust valve is connected to a turbidity solenoid valve, the turbidity meter is connected to the turbidity solenoid valve, and a turbidity meter sampling point is provided between the turbidity meter and the turbidity solenoid valve.

[0009] Furthermore, a conductivity meter sampling point is provided on the softened water outlet pipe between the conductivity meter and the sodium ion exchanger.

[0010] The utility model has the following beneficial effects:

[0011] The utility model provides a system for automatically controlling the operation of a sodium ion exchanger online, which is mainly composed of components such as a pneumatic regulating valve, a turbidity solenoid valve, a turbidity meter, a turbidity meter sampling point and a conductivity meter sampling point. The pneumatic regulating valve automatically controls the flow rate, and the turbidity and conductivity are monitored online to control the backwashing node, thereby achieving the purpose of comprehensively improving the efficient operation of the softener, effectively improving the efficiency and stability of the unmanned operation of the sodium ion exchanger in the circulating water pump room, and solving the problem that in the current water treatment soft water preparation process, the process parameters are often monitored inaccurately and timely, and the resin is easily disordered, which usually leads to serious waste of new backwash water and insufficient equipment exchange capacity, and ultimately causes the overall low efficiency of the sodium ion exchanger for water treatment soft water preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] The meanings of the reference numerals are as follows:

[0014] 1. Sodium ion exchanger; 2. Water inlet pipe; 3. First water inlet valve; 4. Pneumatic regulating valve; 5. Small backwash inlet valve; 6. Middle drain valve; 7. Second water inlet valve; 8. Large backwash inlet valve; 9. Regeneration liquid inlet valve; 10. Forward wash drain valve; 11. Water outlet valve; 12. Backwash drain valve; 13. Exhaust pipe; 14. Exhaust valve; 15. Turbidity solenoid valve; 16. Turbidimeter sampling point; 17. Turbidimeter; 18. Softened water outlet pipe; 19. Conductivity meter sampling point; 20. Conductivity meter. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] like Figure 1 As shown, a system for automatically controlling the operation of a sodium ion exchanger online comprises a water inlet pipe 2 connected to one side of a sodium ion exchanger 1, a softened water outlet pipe 18 connected to the other side of the sodium ion exchanger 1, an exhaust pipe 13 connected to the top of the sodium ion exchanger 1, a pneumatic regulating valve 4 is provided on the water inlet pipe 2, a middle discharge valve 6 is connected to the pneumatic regulating valve 4, an exhaust valve 14 is provided on the exhaust pipe 13, a turbidity meter 17 is further connected to the exhaust pipe 13, and a conductivity meter 20 is further connected to the softened water outlet pipe 18.

[0017] A first water inlet valve 3 is provided on the water inlet pipe 2 , and the pneumatic regulating valve 4 is connected to the first water inlet valve 3 . The pneumatic regulating valve 4 is also connected to a small backwash water inlet valve 5 .

[0018] A large backwash inlet valve 8, a regeneration liquid inlet valve 9, a forward wash drain valve 10 and a backwash drain valve 12 are provided in the sodium ion exchanger 1, and the large backwash inlet valve 8, the regeneration liquid inlet valve 9, the forward wash drain valve 10 and the backwash drain valve 12 are all connected to the pneumatic regulating valve 4.

[0019] The exhaust valve 14 is connected to a turbidity solenoid valve 15 , the turbidity meter 17 is connected to the turbidity solenoid valve 15 , and a turbidity meter sampling point 16 is provided between the turbidity meter 17 and the turbidity solenoid valve 15 .

[0020] A conductivity meter sampling point 19 is also provided on the softened water outlet pipe 18 between the conductivity meter 20 and the sodium ion exchanger 1 .

[0021] When the utility model is used in a specific application, water is first produced, the outlet valve 11 is opened, the exhaust valve 14 is closed after a delay of 30S, and the first water inlet valve 3 is opened after a delay of 3S. The button is green, and the opening of the new water regulating valve can be set on the screen. When the program is running, the valve opening automatically jumps to the preset opening. When the water production is cancelled, the first water inlet valve 3 is closed first, the outlet valve 11 is closed after a delay of 3S, and then the exhaust valve 14 is opened. The button is red, and the actions, states, and duration of each valve are automatically recorded, and historical data can be queried. When water is regenerated, a small backwash is first performed: the exchanger backwash drain valve 12 is opened, and the new water is set. After the regulating valve is opened, the small backwash inlet valve 5, the turbidity solenoid valve 15 and the exhaust valve 14 are opened, that is, the backwash drain valve 12 and the exhaust valve 14 are opened first, and the small backwash inlet valve 5 is opened after a delay of 3S, and the turbidity solenoid valve 15 is opened after a delay of 3S, and the exhaust valve 14 is closed. The small backwash inlet valve 5 and the backwash drain valve 12 are opened and counted at the same time for 1 time, and the alarm is reached when the set number of times is reached; the turbidity meter 17 alarms after the turbidity is lower than the preset value, and the small backwash inlet valve 5 is closed, and the turbidity solenoid valve 15 and the backwash drain valve 12 are closed after a delay of 3S. When the turbidity meter 17 is running, it displays real-time turbidity data and records historical data. Then carry out large backwash: the opening of the new water regulating valve can be set on the screen. When the program is running, the valve opening automatically jumps to the preset opening. First open the backwash drain valve 12 and the exhaust valve 14, and then open the large backwash water inlet valve 8 after a delay of 3S. Then open the turbidity solenoid valve 15 after a delay of 3S, and close the exhaust valve 14. The turbidity meter 17 will alarm when the turbidity drops to the preset value, and then open the exhaust valve 14 and the forward wash drain valve 10. The backwash drain valve 12 will drain the water in the sodium ion exchanger 1. After that, the salt liquid outlet valve and the regeneration liquid inlet valve are opened first, and the backwash drain valve 12 is delayed for 3S before the regeneration pump is operated. After the liquid level of the dilute salt pool is reduced, the regeneration pump is stopped, and the salt liquid outlet valve, the regeneration liquid inlet valve and the backwash drain valve 12 are closed after a delay of 3S; during forward washing, the forward washing drain valve 10 is opened first, and the second water inlet valve 7 is opened after a delay of 3S. The water regulating valve can be set to an opening on the screen, and the valve opening automatically jumps to a preset opening when the program is running, and then the second water inlet valve 7 is closed, and the forward washing drain valve 10 is closed after a delay of 3S, and the exhaust valve 14 is opened for standby. Salt preparation is a continuous operation. If an abnormality occurs during operation, an alarm pops up on the softened water interface. The conductivity meter 20 displays and records historical data in real time, and the historical record can be queried. The entire system operation process automatically controls the flow rate through the pneumatic regulating valve 4, and the turbidity and conductivity are monitored online to control the backwash node, which effectively solves the problem of serious waste of new backwash water and insufficient equipment exchange capacity due to inaccurate and timely monitoring of process parameters and easy resin disorder in the water treatment soft water preparation process, which ultimately causes the overall low efficiency of the sodium ion exchanger 1 for water treatment soft water preparation. Therefore, the system has good practicality.

Claims

1. A system for automatically controlling the operation of a sodium ion exchanger online, comprising a water inlet pipe (2) connected to one side of a sodium ion exchanger (1), a softened water outlet pipe (18) connected to the other side of the sodium ion exchanger (1), and an exhaust pipe (13) connected to the top of the sodium ion exchanger (1), wherein: The water inlet pipe (2) is provided with a pneumatic regulating valve (4), the pneumatic regulating valve (4) is connected to a middle exhaust valve (6), the exhaust pipe (13) is provided with an exhaust valve (14), the exhaust pipe (13) is also connected to a turbidity meter (17), and the softened water outlet pipe (18) is also connected to a conductivity meter (20).

2. The system for automatically controlling the operation of a sodium ion exchanger online according to claim 1, characterized in that: The water inlet pipe (2) is provided with a first water inlet valve (3), and the pneumatic regulating valve (4) is connected to the first water inlet valve (3), and the pneumatic regulating valve (4) is also connected to a small backwash water inlet valve (5).

3. The system for automatically controlling the operation of a sodium ion exchanger online according to claim 1, characterized in that: The sodium ion exchanger (1) is provided with a large backwash inlet valve (8), a regeneration liquid inlet valve (9), a forward wash drain valve (10) and a backwash drain valve (12), and the large backwash inlet valve (8), the regeneration liquid inlet valve (9), the forward wash drain valve (10) and the backwash drain valve (12) are all connected to the pneumatic regulating valve (4).

4. The system for automatically controlling the operation of a sodium ion exchanger online according to claim 1, characterized in that: The exhaust valve (14) is connected to a turbidity solenoid valve (15), the turbidity meter (17) is connected to the turbidity solenoid valve (15), and a turbidity meter sampling point (16) is provided between the turbidity meter (17) and the turbidity solenoid valve (15).

5. The system for automatically controlling the operation of a sodium ion exchanger online according to claim 1, characterized in that: A conductivity meter sampling point (19) is also provided on the softened water outlet pipe (18) between the conductivity meter (20) and the sodium ion exchanger (1).

Images