A preparation system and method for ion exchange resin resuscitation solution

Abstract

The present invention relates to a preparation system and preparation method of ion exchange resin resuscitation solution, wherein the preparation system includes a solution tank, a total output pipe, a liquid medicine input pipe, an internal circulation pipe, a resuscitation solution output pipe, an artificial sampling pipe and a resuscitation solution recovery pipe. Firstly, the present invention arranges a solid medicine feeding hopper on the total output pipe, and arranges the solid medicine feeding hopper before the inlet of a circulation pump, and realizes the solid medicine and the liquid medicine to dissolve and mix while being dissolved by the circulation pump, thereby avoiding the solid medicine directly poured into the solution tank to cause precipitation, hardening and other mixing uneven phenomena. Secondly, by arranging a transparent observation tube, the dissolution of the solid medicine in the resuscitation solution preparation process, the mixing of the solution and the color of the resuscitation solution in the resuscitation process can be observed, and the use is convenient and easy to control. Finally, the resuscitation solution recovery pipe is arranged to realize dynamic circulation resuscitation, which can save the dosage of medicine and the resuscitation time and reduce the cost. Therefore, the system is convenient to operate, safe, and has low manual labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment equipment, and in particular to a preparation system and method for an ion exchange resin resuscitation solution. Background Art

[0002] Ion exchange resins are now widely used in water treatment processes in the power, food, chemical and other industries, playing an irreplaceable role. During use, due to various reasons, cation exchange resins may be contaminated by iron, aluminum and oil, and anions may be contaminated by organic matter, resulting in a series of problems in the ion exchange system, such as deterioration of water quality, low cycle water production, and frequent resin regeneration. For this type of resin pollution, traditional backwashing and acid-base regeneration processes can no longer effectively improve resin performance.

[0003] In order to solve the series of problems caused by resin contamination, in addition to improving the pretreatment process to reduce the pollutant content in the ion exchanger inlet water, the resin needs to be revived to restore the resin performance. Common resin resuscitation methods include: alkaline sodium chloride resuscitation method, oxidant resuscitation method, surfactant resuscitation method, organic solvent method, etc. During resuscitation, the temperature of the resuscitation fluid is usually appropriately increased according to the composition of the resuscitation fluid and the temperature tolerance of the resin and equipment to achieve better resuscitation effect.

[0004] At present, many water treatment workshops are not equipped with hot water tanks, which cannot meet the temperature requirements of the resuscitation process. They can only use room temperature resuscitation, but the resuscitation effect is not ideal, especially in winter when the water temperature is low. The resuscitation fluid is usually composed of a variety of chemical agents, both liquid and solid. Water treatment workshops are usually equipped with resin resuscitation tanks. If resuscitation is carried out in the resin resuscitation tank, the existing acid and alkali delivery system in the workshop can be used to directly add the acid or alkali for regeneration to the resuscitation tank. However, since there is no special dispensing equipment and delivery pipeline for resuscitation, the remaining agents cannot be added directly. If other agents are added using existing acid and alkali metering boxes, the metering boxes and pipelines need to be thoroughly cleaned after use. Otherwise, it will directly affect the effect of normal operation resin regeneration, and there are certain risks. Therefore, during resuscitation, operators usually use the resin resuscitation tank as a container for preparing the resuscitation solution, and then input the resuscitation solution into the ion exchanger where the resin is located to resuscitate the resin. If the acid or alkali used for regeneration is one of the components of the resuscitation solution, it is first transported to the resuscitation tank together with the desalted water, and then the resuscitation solution is poured from the manhole door of the resuscitation tank to prepare other required agents; for solid agents, if the amount added is large, in order to avoid compaction when pouring, the solid agent is usually first prepared into a high-concentration solution with water, and then poured from the manhole door of the resuscitation tank. Since the manhole door of the resuscitation tank is located at a high position, it is inconvenient to operate and there is a safety risk of working at heights. In addition, the resuscitation tank has no stirring function, and compressed air can only be temporarily introduced into the resuscitation tank for mixing, or it can be left to stand for a long time to allow it to mix naturally, but it cannot be mixed evenly. In addition, for existing resin ion exchangers or resuscitation tanks, the resuscitation fluid cannot be recycled after passing through the resin. Long-term dynamic resuscitation requires a large amount of reagents. In order to save the amount of reagents, operators usually adopt a multiple immersion resuscitation process, that is, the prepared resuscitation fluid in the resuscitation tank is transported to the ion exchanger where the resin is located, and then left to soak for a long time. The resuscitation fluid is then drained, and then the resuscitation fluid is prepared again for soaking. The resuscitation effect is improved through multiple consecutive resuscitations.

[0005] In summary, the existing water treatment workshops for ion exchange resin resuscitation usually have problems such as uneven mixing of the resuscitation liquid components, the resuscitation liquid temperature not meeting the process requirements, large consumption of resuscitation agents, long resuscitation time, cumbersome operations, and high labor workload. The existence of these problems not only leads to poor resin resuscitation effect and failure to achieve the expected effect, but also is uneconomical. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a preparation system and method for ion exchange resin resuscitation solution.

[0007] The specific contents are as follows: A system for preparing ion exchange resin resuscitation solution, the system comprises a solution tank, a total output pipe, a liquid medicine input pipe, an internal circulation pipe, a resuscitation solution output pipe, an artificial sampling pipe and a resuscitation solution recovery pipe, and is characterized in that:

[0008] The solution tank is a square stainless steel box lined with an anti-corrosion layer. A heating element extending into the interior is provided on the top of the solution tank. A temperature measuring element is also provided on the top of the solution tank. A liquid level display element is provided on the side wall of the solution tank.

[0009] One end of the total output pipe is connected to the bottom of the solution tank, and the other end of the total output pipe is connected to the internal circulation pipeline and the resuscitation fluid output pipeline respectively through the three-way pipe joint A. The total output pipe is connected in series with the solenoid valve A, the circulation pump, the check valve and the transparent observation tube in sequence from the end where the solution tank is located. The circulation pump is a variable frequency pump with adjustable flow rate. The total output pipe is also connected to a solid medicine feeding hopper. The discharge port at the lower end of the solid medicine feeding hopper is connected to the total output pipe and the connection is located between the solenoid valve A and the circulation pump.

[0010] One end of the liquid medicine input pipe is connected to the main output pipe through a three-way pipe joint B, and the three-way pipe joint B is connected in series to the main output pipe between the solid medicine feeding hopper and the circulation pump. The liquid medicine input pipe is connected in series with a Y-type filter A, a flow meter A and a solenoid valve B in sequence from its free end, and a sampling hose is also connected to the free end of the liquid medicine input pipe;

[0011] One end of the artificial sampling tube is connected to the main output tube and the connection is located between the transparent observation tube and the three-way pipe joint A. A manual valve A is connected in series to the artificial sampling tube.

[0012] One end of the inner circulation pipe is connected to the three-way pipe joint A, and the other end is connected to the top of the solution tank. A solenoid valve C is connected in series to the inner circulation pipe.

[0013] One end of the resuscitation fluid output pipe is connected to the three-way pipe joint A, and the other end is connected to the bottom of the resuscitation tank, and the resuscitation fluid output pipe is connected in series with a Y-type filter B, a flow meter B and a solenoid valve D in sequence from the end where the three-way pipe joint A is located;

[0014] One end of the resuscitation fluid recovery pipe is connected to the top of the resuscitation tank, and the other end is connected to the top of the solution tank, and a solenoid valve E is connected in series to the resuscitation fluid recovery pipe.

[0015] Preferably, the heating element is an electric heater, and the temperature measuring element is a thermocouple.

[0016] Preferably, the transparent observation tube is made of organic glass.

[0017] Preferably, the liquid level display element is a corrosion-resistant organic glass liquid level gauge.

[0018] Preferably, a maintenance manhole is also provided on the top of the solution tank.

[0019] Preferably, the bottom of the solution tank is also connected to a drain pipe, and the drain pipe is connected in series with a manual valve B.

[0020] Preferably, the top of the solution tank is also connected to an overflow pipe, and the lower end of the overflow pipe is connected to the drain pipe.

[0021] Preferably, the upper part of the solid medicine feeding hopper is a cylindrical cylinder and the lower part is a conical cylinder. A filter screen is provided at the junction between the upper and lower parts. The diameter of the filter screen is the same as the diameter of the upper cylindrical cylinder. The lower port of the lower conical cylinder is vertically connected to the main output pipe through a connecting cylinder, and the connecting cylinder is provided with a knife-type gate valve.

[0022] Preferably, a control cabinet for controlling the operation of the entire system is also provided on the top of the solution tank.

[0023] A method for preparing the preparation system of the ion exchange resin resuscitation solution, the method comprising the following steps:

[0024] ① Calculate the volume of desalted water, the volume of each liquid raw material, and the mass of each solid raw material based on the total volume of the resuscitation solution to be prepared, the mass fraction of each component of the resuscitation solution, the mass fraction of the effective components in the liquid and solid raw materials, and the density of the liquid raw material for use in preparing the resuscitation solution; the calculation formula is as follows:

[0025] (1) Required amount of liquid raw material medicine containing component A V A The calculation formula is as follows:

[0026] V A =V 总 ×ρ×ω A / (X A ×ρ A ) <1>

[0027] Where:

[0028] V A —Required amount of liquid raw material medicine containing component A, in m 3 ;

[0029] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0030] ρ—density of resuscitation fluid, kg / m 3 , with 1.0×10 3 calculate;

[0031] ω A —The mass fraction of component A in the resuscitation fluid formula, in %;

[0032] X A—The mass percentage of active ingredient A in the liquid raw material medicine, in %;

[0033] ρ A —Density of the liquid raw material containing component A, in kg / m 3 ;

[0034] (2) Required amount of solid medicine containing component B m B The calculation formula is as follows:

[0035] m B =V 总 ×ρ×ω B / X B <2>

[0036] Where:

[0037] m B —Required amount of solid medicine containing component B, in kg;

[0038] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0039] ρ—density of the resuscitation fluid, in kg / m 3 ;

[0040] ω B —The mass fraction of component B in the resuscitation solution formula, in %;

[0041] X B —The mass fraction of effective component B in the solid raw material medicine, in %; (3) The required amount of deionized water V 水 The calculation formula is as follows:

[0042] V 水 =V 总 -ΣV Ai <3>

[0043] Where:

[0044] V 水 —Deionized water demand, in m 3 ;

[0045] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0046] V Ai —Required amount of liquid raw material medicine containing component Ai, in m 3 ;

[0047] ΣV Ai—The sum of the demand for various liquid raw materials and pharmaceuticals, in m 3 ;

[0048] (4) The calculation formula of the density ρ of the resuscitation fluid is as follows:

[0049] ρ=[ρ 水 ×V 水 +Σ(V Ai ×ρ Ai )+Σm Bi ] / V 总 <4>

[0050] Where:

[0051] ρ—density of the resuscitation fluid, in kg / m 3

[0052] ρ 水 —The density of water is 1.0×10 3 kg / m 3 ;

[0053] V 水 —Deionized water demand, in m 3 ;

[0054] V Ai —Contains component A i The demand for liquid raw material medicine, unit is m 3 ;

[0055] ρ Ai —Contains component A i The density of the liquid raw material medicine is kg / m 3 ;

[0056] Σ(V Ai ×ρ Ai )—the sum of the required mass of various liquid raw materials, in kg;

[0057] m Bi —Contains component B i The demand for solid medicine, in kg;

[0058] Σm Bi —The sum of the demand for various solid raw material pharmaceuticals, in kg;

[0059] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0060] ② Add deionized water, connect the free end of the liquid agent input pipe to the deionized water, start working the liquid agent input pipe, the circulation pump in the total output pipe, the check valve and the transparent observation pipe, and the inner circulation pipe, and close the other pipes. Fill the required amount of deionized water calculated in step ① into the solution tank through the circulation pump;

[0061] ③ Temperature control: the temperature of the liquid in the solution tank is heated to the preset temperature through the combined control of the electric heater and the thermocouple;

[0062] ④ Add liquid medicine, connect the free end of the liquid medicine input pipe to the corresponding liquid medicine, start working in the liquid medicine input pipe, the circulation pump, the check valve and the transparent observation pipe in the total output pipe, and the inner circulation pipe, and close the other pipes. Add the required amount of the corresponding liquid medicine calculated in step ① into the solution tank through the circulation pump. Repeat step ④ for multiple liquid medicines;

[0063] ⑤ Add solid medicine, the total output pipe, solid medicine feeding hopper, knife-type gate valve and inner circulation pipe all start working, and the other pipes are closed. Add the solid medicine into the solid medicine feeding hopper, open the knife-type gate valve, and start the circulation pump to circulate the liquid in the solution tank in the total output pipe and the inner circulation pipe, so that the solid medicine is dissolved while being added. Repeat step ⑤ for multiple solid medicines;

[0064] ⑥ Mixed solution. After all the reagents are added, the total output pipe and the internal circulation pipe start working, and the other pipes are closed. The solution is circulated and mixed evenly by running the circulation pump. When the thermocouple shows that the temperature in the solution tank has reached the preset temperature, and it is preliminarily observed from the transparent observation tube that the solution is mixed evenly, and then the manual sampling tube is used to take samples to confirm that there are no errors, all pipes can be closed and the resuscitation solution preparation is completed.

[0065] Beneficial technical effects of the present invention: The present invention is a preparation system and preparation method for ion exchange resin resuscitation solution, wherein the preparation system includes a solution tank, a total output pipe, a liquid medicine input pipe, an internal circulation pipe, a resuscitation solution output pipe, an artificial sampling pipe and a resuscitation solution recovery pipe. First, the present invention arranges a solid medicine feeding hopper on the total output pipe, and arranges the solid medicine feeding hopper before the inlet of the circulation pump, so that the solid medicine and the liquid medicine are dissolved and mixed by the circulation pump, thereby avoiding the precipitation, hardening and other uneven mixing phenomena caused by pouring the solid medicine directly into the solution tank. Secondly, by arranging a transparent observation tube, the dissolution of the solid medicine in the preparation process of the resuscitation solution, the mixing of the solution and the color change of the resuscitation solution in the resin resuscitation process can be observed, which is convenient to use and easy to control. Finally, an electric heater and a thermocouple are arranged in the solution tank to control the temperature of the resuscitation solution in the mixing and resuscitation process, so that the resuscitation solution is mixed more evenly during the preparation process, and the resuscitation effect of the resuscitation solution on the resin is better. In addition, the arrangement of the resuscitation solution recovery pipe realizes dynamic circulation resuscitation, which can save the dosage of medicine and the resuscitation time, and reduce the cost. Therefore, the system is easy to operate, safe and has low labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 A schematic diagram of the connection relationship of a preparation system of an ion exchange resin resuscitation solution;

[0067] In the figure: 11. Solution tank, 12. Corrosion-resistant organic glass level gauge, 13. Inspection manhole, 14. Control cabinet, 15. Thermocouple, 16. Electric heater, 17. Overflow pipe, 18. Drain pipe, 19. Manual valve B, 21. Total output pipe, 22. Solenoid valve A, 23. Three-way pipe joint B, 24. Circulation pump, 25. Check valve, 26. Transparent observation tube, 27. Three-way pipe joint A, 31. Liquid agent input pipe, 32. Flow Meter A, 33. Y-type filter A, 34. Solenoid valve B, 35. Sampling hose, 41. Manual sampling tube, 42. Manual valve A, 51. Internal circulation tube, 52. Solenoid valve C, 61. Resuscitation fluid output tube, 62. Y-type filter B, 63. Flow meter B, 64. Solenoid valve D, 71. Resuscitation tank, 81. Resuscitation fluid recovery tube, 82. Solenoid valve E, 91. Solid medicine hopper, 92. Knife-type gate valve, 93. Connecting tube. DETAILED DESCRIPTION

[0068] Example 1, see Figure 1 , a system for preparing an ion exchange resin resuscitation solution, the system comprising a solution tank, a total output pipe, a liquid medicine input pipe, an internal circulation pipe, a resuscitation solution output pipe, an artificial sampling pipe and a resuscitation solution recovery pipe;

[0069] The solution tank is a square stainless steel box lined with an anti-corrosion layer. A heating element extending into the interior is provided at the top of the solution tank. The heating element in this embodiment adopts an electric heater, which is used to heat the resuscitation fluid. A temperature measuring element is also provided at the top of the solution tank. The temperature measuring element in this embodiment adopts a thermocouple, which is used to display the temperature of the resuscitation fluid. A liquid level display element is provided on the side wall of the solution tank. The liquid level display element in this embodiment adopts a corrosion-resistant plexiglass level gauge, which is used to display the liquid level of the resuscitation fluid.

[0070] One end of the total output pipe is connected to the bottom of the solution tank, and the other end of the total output pipe is connected to the internal circulation pipeline and the resuscitation fluid output pipeline respectively through a three-way pipe joint A. The total output pipe is connected in series with a solenoid valve A, a circulation pump, a check valve and a transparent observation tube in sequence from the end where the solution tank is located. The transparent observation tube is made of organic glass and is used to observe the dissolution of solid medicines, the mixing of solutions, and the color change of the resuscitation fluid during the preparation of the resuscitation fluid. The circulation pump is a variable frequency pump with adjustable flow rate. A solid medicine feeding hopper is also connected to the total output pipe. The discharge port at the lower end of the solid medicine feeding hopper is connected to the total output pipe and the connection is located between the solenoid valve A and the circulation pump;

[0071] One end of the liquid medicine input pipe is connected to the main output pipe through a three-way pipe joint B, and the three-way pipe joint B is connected in series to the main output pipe between the solid medicine feeding hopper and the circulation pump. The liquid medicine input pipe is connected in series with a Y-type filter A, a flow meter A and a solenoid valve B in sequence from its free end, and a sampling hose is also connected to the free end of the liquid medicine input pipe; the flow meter A has the functions of instantaneous flow measurement, flow accumulation and signal output.

[0072] One end of the artificial sampling tube is connected to the main output tube and the connection is located between the transparent observation tube and the three-way pipe joint A. A manual valve A is connected in series to the artificial sampling tube; the artificial sampling tube is used for artificial sampling and emptying the liquid in the internal circulation tube and the resuscitation fluid output tube after the resuscitation is completed.

[0073] One end of the inner circulation pipe is connected to the three-way pipe joint A, and the other end is connected to the top of the solution tank. A solenoid valve C is connected in series to the inner circulation pipe.

[0074] One end of the resuscitation fluid output tube is connected to the three-way pipe joint A, and the other end is connected to the bottom of the resuscitation tank. The resuscitation fluid output tube is connected in series with a Y-type filter B, a flowmeter B and a solenoid valve D in sequence from the end where the three-way pipe joint A is located; the flowmeter B has the functions of instantaneous flow measurement, flow accumulation and signal output.

[0075] One end of the resuscitation fluid recovery pipe is connected to the top of the resuscitation tank, and the other end is connected to the top of the solution tank, and the resuscitation fluid recovery pipe is connected in series with a solenoid valve E. The resuscitation fluid is recovered and utilized at the same time, realizing dynamic circulation resuscitation.

[0076] The top of the solution tank is also provided with an inspection manhole to facilitate daily inspection and maintenance of the solution tank.

[0077] The bottom of the solution tank is also connected to an emptying pipe, and the emptying pipe is connected in series with a manual valve B for cleaning and emptying the solution tank.

[0078] The top of the solution tank is also connected to an overflow pipe, the lower end of which is connected to an emptying pipe to prevent excessive liquid in the solution tank and avoid damaging the system.

[0079] The upper part of the solid medicine feeding hopper is a cylindrical cylinder and the lower part is a conical cylinder. A filter screen is provided at the junction between the upper and lower parts. The diameter of the filter screen is the same as the diameter of the upper cylindrical cylinder. The lower port of the lower conical cylinder is vertically connected to the main output pipe through a connecting cylinder, and the connecting cylinder is provided with a knife-type gate valve.

[0080] Example 2, see Figure 1 A method for preparing the ion exchange resin resuscitation solution preparation system using the first embodiment, the method comprising the following steps:

[0081] ① According to the total volume of the resuscitation solution to be prepared, the mass fraction of each component of the resuscitation solution, the mass fraction of the effective components in the liquid and solid raw materials, and the density of the liquid raw materials, calculate the volume of desalted water, the volume of each liquid raw material, and the mass of each solid raw material for the preparation of the resuscitation solution. The calculation formula is as follows:

[0082] (1) Required amount of liquid raw material medicine containing component A V A The calculation formula is as follows:

[0083] V A =V 总 ×ρ×ω A / (X A ×ρ A ) <1>

[0084] Where:

[0085] V A —Required amount of liquid raw material medicine containing component A, in m 3 ;

[0086] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0087] ρ—density of resuscitation fluid, kg / m 3 , with 1.0×10 3 calculate;

[0088] ω A —The mass fraction of component A in the resuscitation fluid formula, in %;

[0089] X A —The mass percentage of active ingredient A in the liquid raw material medicine, in %;

[0090] ρ A —Density of the liquid raw material containing component A, in kg / m 3 ;

[0091] (2) Required amount of solid medicine containing component B m B The calculation formula is as follows:

[0092] m B =V 总 ×ρ×ω B / X B <2>

[0093] Where:

[0094] m B —Required amount of solid medicine containing component B, in kg;

[0095] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0096] ρ—density of the resuscitation fluid, in kg / m 3 ;

[0097] ω B —The mass fraction of component B in the resuscitation solution formula, in %;

[0098] X B —The mass fraction of the effective component B in the solid raw material medicine, in %;

[0099] (3) Desalination water demand V 水 The calculation formula is as follows:

[0100] V 水 =V 总 -ΣV Ai <3>

[0101] Where:

[0102] V 水 —Deionized water demand, in m 3 ;

[0103] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0104] V Ai —Contains component A i The demand for liquid raw material medicine, unit is m 3 ;

[0105] ΣV Ai —The sum of the demand for various liquid raw materials and pharmaceuticals, in m 3 ;

[0106] (4) The calculation formula of the density ρ of the resuscitation fluid is as follows:

[0107] ρ=[ρ 水 ×V 水 +Σ(V Ai ×ρ Ai )+Σm Bi ] / V 总 <4>

[0108] Where:

[0109] ρ—density of the resuscitation fluid, in kg / m 3

[0110] ρ 水 —The density of water is 1.0×10 3 kg / m 3 ;

[0111] V 水 —Deionized water demand, in m 3 ;

[0112] V Ai —Contains component A i The demand for liquid raw material medicine, unit is m 3 ;

[0113] ρ Ai —Contains component A i The density of the liquid raw material medicine is kg / m 3 ;

[0114] Σ(V Ai ×ρ Ai )—the sum of the required mass of various liquid raw materials, in kg;

[0115] m Bi —Contains component B i The demand for solid medicine, in kg;

[0116] Σm Bi—The sum of the demand for various solid raw material pharmaceuticals, in kg;

[0117] V 总 —The volume of resuscitation fluid required, in m 3 ;

[0118] ② Add deionized water, connect the free end of the liquid agent input pipe to the deionized water, start working the liquid agent input pipe, the circulation pump in the total output pipe, the check valve and the transparent observation pipe, and the inner circulation pipe, and close the other pipes. Fill the required amount of deionized water calculated in step ① into the solution tank through the circulation pump;

[0119] ③ Temperature control: the temperature of the liquid in the solution tank is heated to the preset temperature through the combined control of the electric heater and the thermocouple;

[0120] ④ Add liquid medicine, connect the free end of the liquid medicine input pipe to the corresponding liquid medicine, start working in the liquid medicine input pipe, the circulation pump, the check valve and the transparent observation tube, and the inner circulation pipe in the total output pipe, and close the other pipes. Use the circulation pump to add the required amount of the corresponding liquid medicine calculated in step ① into the solution tank. For multiple liquid medicines, repeat step ④. If the required amount of liquid medicine is too small to be measured through the liquid medicine input pipe, it can be manually quantitatively sampled and poured into the solid medicine feeding hopper for addition. The method is the same as the solid medicine addition step.

[0121] ⑤ Add solid medicine, the total output pipe, solid medicine feeding hopper, knife-type gate valve and inner circulation pipe all start working, and the other pipes are closed. Add the solid medicine into the solid medicine feeding hopper, open the knife-type gate valve, and start the circulation pump to circulate the liquid in the solution tank in the total output pipe and the inner circulation pipe, so that the solid medicine is dissolved while being added. Repeat step ⑤ for multiple solid medicines;

[0122] ⑥ Mixed solution. After all the reagents are added, the total output pipe and the internal circulation pipe start working, and the other pipes are closed. The solution is circulated and mixed evenly by running the circulation pump. When the thermocouple shows that the temperature in the solution tank has reached the preset temperature, and it is preliminarily observed from the transparent observation tube that the solution is mixed evenly, and then the manual sampling tube is used to take samples to confirm that there are no errors, all pipes can be closed and the resuscitation solution preparation is completed.

[0123] Example 3, see Figure 1 The resuscitation solution is alkaline sodium chloride solution (4% NaOH + 10% NaCl), and the volume of the resuscitation solution is V 总 =8m 3 Taking the solution of the present invention as an example, the solution of the present invention is described in detail;

[0124] The resin was revived by using the resuscitation solution prepared by the resin resuscitation solution preparation system and preparation method of the present invention. The resuscitation solution was an alkaline sodium chloride solution (4% NaOH + 10% NaCl), the resuscitation temperature was 40°C, and the flow rate was 12m 3 / h, recovery time 12h. The following is the specific workflow:

[0125] ① Calculate the required amount of raw materials for each component of the resuscitation fluid

[0126] The resuscitation fluid V is to be prepared for this resuscitation. 总 =8m 3 The mass fractions of component A (NaOH) and component B (NaCl) in the resuscitation solution are ω A =4%,ω B =10%, the mass fraction of the effective component A (NaOH) in the liquid raw material ion membrane caustic soda purchased by the power plant is X A =30%, density is ρ A =1.32×10 3 kg / m 3 , the mass fraction of the effective component NaCl in the solid raw material industrial salt is X B =99.1%, according to the formula in Example 2 <1> , <2> , <3> , <4> The density of the resuscitation fluid is calculated to be ρ = 1.15 × 10 3 kg / m 3 , deionized water V needs to be added 水 =7.07m 3 , ion membrane liquid alkali V A =0.93m 3 , industrial salt B =928.4kg.

[0127] ②Add desalted water

[0128] Connect the existing desalted water pipeline in the workshop through the sampling hose. The liquid agent input pipe, the circulation pump in the total output pipe, the check valve and the transparent observation pipe, and the internal circulation pipe all start working. The rest of the pipes are closed. Add desalted water into the solution tank. When the cumulative flow increase value of flow meter A is equal to V 水 =7.07m 3 When the circulation pump and solenoid valve B and solenoid valve C are closed, the addition of desalted water is completed.

[0129] ③Temperature control

[0130] The resuscitation fluid temperature is set to T = 40°C. The system automatically controls the temperature through an electric heater and a thermocouple. Heating begins before adding liquid and solid medicines, which helps dissolve and mix the medicines and shortens the waiting time for heating before the resuscitation fluid begins to be delivered.

[0131] ④Add liquid medicine

[0132] Connect the existing ion membrane caustic soda supply pipeline in the workshop through the sampling hose or insert it into the storage box of ion membrane caustic soda. The liquid agent input pipe, the circulation pump in the total output pipe, the check valve and the transparent observation tube, and the internal circulation pipe all start working. The other pipes are closed. The ion membrane caustic soda is added to the solution tank through the circulation pump. When the cumulative flow increase value of flow meter A is equal to V A =0.93m 3 When the circulation pump and electromagnetic valve B and electromagnetic valve C are closed, the addition of ion membrane liquid alkali is completed. If multiple liquid agents need to be added, the process is the same as above. If the demand for liquid agents is too small and cannot be measured through the liquid agent input pipeline, it can be added after manual quantitative sampling, and the method is the same as the solid agent addition step.

[0133] ⑤Add solid medicine

[0134] The total output pipe, solid medicine feeding hopper, knife-type gate valve and inner circulation pipe all start working, and the other pipes are closed. Industrial salt is gradually added into the solid medicine feeding hopper. The knife-type gate valve is opened, and the circulation pump works to make the liquid in the solution tank circulate in the total output pipe and the inner circulation pipe, so that the solid medicine is dissolved and added at the same time until the required amount m B = 928.4 kg of industrial salt is added, and multiple solid medicines are added, and the above steps are repeated;

[0135] ⑥Medicine mixing

[0136] After all the drugs are added, the total output pipe and the internal circulation pipe start working, and the other pipes are closed. The solution is circulated and mixed evenly by running the circulation pump. When the reading of the thermocouple reaches the set temperature of the resuscitation solution T=40℃, and the solution is preliminarily observed to be mixed evenly from the transparent observation tube, and then the manual sampling tube is used to confirm that it is correct, all pipes can be closed and the resuscitation solution preparation is completed;

[0137] ⑦Resuscitation fluid delivery

[0138] The main output pipe and the resuscitation fluid output pipe start working, the other pipes are closed, the circulation pump works to deliver the prepared resuscitation fluid to the resuscitation tank, and the flow rate of the circulation pump is adjusted so that the reading of flow meter B is equal to the resuscitation flow setting value Q = 12m 3 / h, when the resuscitation tank is filled with resuscitation fluid, the resuscitation fluid recovery pipe starts to work, and the resuscitation fluid is recovered into the solution tank through the resuscitation fluid recovery pipe. When the resuscitation time t = 12h, all pipelines are closed, and the resuscitation fluid circulation and delivery process ends;

[0139] ⑧Resuscitation fluid discharge

[0140] Open manual valve B to drain the resuscitation fluid in the solution tank; open manual valve A to drain the resuscitation fluid in the internal circulation pipe and the resuscitation fluid output pipe. The remaining resuscitation fluid in the resuscitation tank will be flushed by the subsequent resin flushing step in the resuscitation process, which is within the operating range of the resuscitation tank.

[0141] After the power plant used this system to revive the contaminated anion resin, the cycle water production increased from 1400m 3 Increase to 3200m 3 Around 2500m, higher than the previous multiple immersion recovery process 3 , compared with 3350m at the beginning of operation 3 Compared with the previous multiple immersion resuscitation process, the concentration, temperature, flow rate and resuscitation time of each component of the resuscitation fluid are more precisely controlled, the resuscitation effect is better, the amount of medicine used is reduced by nearly half, the time consumed is only one-third of the original, and the labor intensity and safety risks are greatly reduced.

[0142] The present invention can also realize automatic control of the whole system through the control system, namely:

[0143] Automatic calculation of the required amount of raw materials for each component of the resuscitation fluid:

[0144] Enter the total volume V of the resuscitation fluid to be prepared into the system 总 , the mass fraction of each component in the resuscitation fluid formula (ω A1 ,ω A2 ,ω B1 ,ω B2 etc.), the mass fraction of the active ingredients in liquid and solid raw material medicines (X A1 , X A2 , X B1 , X B2 etc.), density of liquid raw material medicine (ρ A1 , A2 The volume V of deionized water required to prepare the resuscitation solution is automatically calculated according to the corresponding formula in Example 2. 水 , the volume of each liquid raw material medicine (V A1 、V A2 etc.), the mass of each solid raw material medicine (m B1 、m B2 wait).

[0145] Automatic control of liquid medicine addition amount:

[0146] When a certain liquid agent is added, when the cumulative flow increase of flow meter A is equal to the corresponding demand (V 水 、V A1 、V A2 When the data (such as the above) are the same, the system automatically stops adding liquid to achieve automatic control of the amount of liquid added.

[0147] Drug mixing control

[0148] After starting the reagent mixing control system, the system will automatically start the total output pipe and the internal circulation pipe;

[0149] Automatic temperature control:

[0150] The temperature setting and automatic control are realized by connecting the signals of the electric heater and the thermocouple to the control system.

[0151] Automatic resuscitation flow control:

[0152] After setting the resuscitation flow rate Q in the system and starting the resuscitation fluid delivery system, the system automatically adjusts the opening of the resuscitation fluid delivery solenoid valve D so that the reading of flow meter B is equal to the resuscitation flow rate Q.

[0153] Automatic control of resuscitation time:

[0154] The resuscitation time t is set in the system, and the system counts according to the signal of the resuscitation fluid flow meter B. When the resuscitation time reaches the set time t, the system automatically stops delivering the resuscitation fluid to the resuscitation tank.

Claims

1. A system for preparing an ion exchange resin resuscitation solution, the system comprising a solution tank, a total output pipe, a liquid medicine input pipe, an internal circulation pipe, a resuscitation solution output pipe, an artificial sampling pipe and a resuscitation solution recovery pipe, wherein: The solution tank is a square stainless steel box lined with an anti-corrosion layer. A heating element extending into the interior is provided on the top of the solution tank. A temperature measuring element is also provided on the top of the solution tank. A liquid level display element is provided on the side wall of the solution tank. One end of the total output pipe is connected to the bottom of the solution tank, and the other end of the total output pipe is connected to the internal circulation pipeline and the resuscitation fluid output pipeline respectively through the three-way pipe joint A. The total output pipe is connected in series with the solenoid valve A, the circulation pump, the check valve and the transparent observation tube in sequence from the end where the solution tank is located. The circulation pump is a variable frequency pump with adjustable flow rate. The total output pipe is also connected to a solid medicine feeding hopper. The discharge port at the lower end of the solid medicine feeding hopper is connected to the total output pipe and the connection is located between the solenoid valve A and the circulation pump. One end of the liquid medicine input pipe is connected to the main output pipe through a three-way pipe joint B, and the three-way pipe joint B is connected in series to the main output pipe between the solid medicine feeding hopper and the circulation pump. The liquid medicine input pipe is connected in series with a Y-type filter A, a flow meter A and a solenoid valve B in sequence from its free end, and a sampling hose is also connected to the free end of the liquid medicine input pipe; One end of the artificial sampling tube is connected to the main output tube and the connection is located between the transparent observation tube and the three-way pipe joint A. A manual valve A is connected in series to the artificial sampling tube. One end of the inner circulation pipe is connected to the three-way pipe joint A, and the other end is connected to the top of the solution tank. A solenoid valve C is connected in series to the inner circulation pipe. One end of the resuscitation fluid output pipe is connected to the three-way pipe joint A, and the other end is connected to the bottom of the resuscitation tank, and the resuscitation fluid output pipe is connected in series with a Y-type filter B, a flow meter B and a solenoid valve D in sequence from the end where the three-way pipe joint A is located; One end of the resuscitation fluid recovery pipe is connected to the top of the resuscitation tank, and the other end is connected to the top of the solution tank, and the resuscitation fluid recovery pipe is connected in series with a solenoid valve E; The heating element is an electric heater, and the temperature measuring element is a thermocouple; The upper part of the solid medicine feeding hopper is a cylindrical cylinder and the lower part is a conical cylinder. A filter screen is provided at the junction between the upper and lower parts. The diameter of the filter screen is the same as the diameter of the upper cylindrical cylinder. The lower port of the lower conical cylinder is vertically connected to the main output pipe through a connecting cylinder, and the connecting cylinder is provided with a knife-type gate valve.

2. The system for preparing an ion exchange resin resuscitation solution according to claim 1, characterized in that: The transparent observation tube is made of organic glass.

3. The system for preparing an ion exchange resin resuscitation solution according to claim 1, characterized in that: The liquid level display element is a corrosion-resistant organic glass liquid level gauge.

4. The system for preparing an ion exchange resin resuscitation solution according to claim 1, characterized in that: The top of the solution tank is also provided with a maintenance manhole.

5. The system for preparing an ion exchange resin resuscitation solution according to claim 1, characterized in that: The bottom of the solution tank is also connected with a drain pipe, and the drain pipe is connected in series with a manual valve B.

6. The system for preparing an ion exchange resin resuscitation solution according to claim 5, characterized in that: The top of the solution tank is also connected with an overflow pipe, and the lower end of the overflow pipe is connected to the drain pipe.

7. The system for preparing an ion exchange resin resuscitation solution according to claim 1, characterized in that: A control cabinet for controlling the operation of the entire system is also arranged on the top of the solution tank.

8. A method for preparing the ion exchange resin resuscitation solution preparation system using the method of claim 1, the method comprising the following steps: ① Calculate the volume of desalted water, the volume of each liquid raw material, and the mass of each solid raw material based on the total volume of the resuscitation solution to be prepared, the mass fraction of each component of the resuscitation solution, the mass fraction of the effective components in the liquid and solid raw materials, and the density of the liquid raw material for use in preparing the resuscitation solution; the calculation formula is as follows: (1) Required amount of liquid raw material medicine containing component A V A The calculation formula is as follows: V A =V 总 ×ρ×ω A / (X A ×ρ A )<1> Where: V A —Required amount of liquid raw material medicine containing component A, in m 3 ; V 总 —The volume of resuscitation fluid required, in m 3 ; ρ—density of resuscitation fluid, kg / m 3 , with 1.0×10 3 calculate; ω A —The mass fraction of component A in the resuscitation fluid formula, in %; X A —The mass percentage of active ingredient A in the liquid raw material medicine, in %; ρ A —Density of the liquid raw material containing component A, in kg / m 3 ; (2) Required amount of solid medicine containing component B m B The calculation formula is as follows: m B =V 总 ×ρ×ω B / X B <2> Where: m B —Required amount of solid medicine containing component B, in kg; V 总 —The volume of resuscitation fluid required, in m 3 ; ρ—density of the resuscitation fluid, in kg / m 3 ; ω B —The mass fraction of component B in the resuscitation solution formula, in %; X B —The mass fraction of effective component B in the solid raw material medicine, in %; (3) The required amount of deionized water V 水 The calculation formula is as follows: In 水 =V 总 -ΣV Ai <3> Where: V 水 —Deionized water demand, in m 3 ; V 总 —The volume of resuscitation fluid required, in m 3 ; V Ai —Required amount of liquid raw material medicine containing component Ai, in m 3 ; ΣV Ai —The sum of the demand for various liquid raw materials and pharmaceuticals, in m 3 ; (4) The calculation formula of the density ρ of the resuscitation fluid is as follows: p=[p 水 ×V 水 +Σ(V Ai ×r Ai )+Σm Bi ] / V 总 <4> Where: ρ—density of the resuscitation fluid, in kg / m 3 ρ 水 —The density of water is 1.0×10 3 kg / m 3 ; V 水 —Deionized water demand, in m 3 ; V Ai —Required amount of liquid raw material medicine containing component Ai, in m 3 ; ρ Ai —Density of the liquid raw material containing component Ai, in kg / m 3 ; Σ(V Ai ×ρ Ai )—The sum of the required mass of various liquid raw materials, in kg; m Bi —Required amount of solid medicine containing component Bi, in kg; Σm Bi —The sum of the demand for various solid raw material pharmaceuticals, in kg; V 总 —The volume of resuscitation fluid required, in m 3 ; ② Add deionized water, connect the free end of the liquid agent input pipe to the deionized water, start working the liquid agent input pipe, the circulation pump in the total output pipe, the check valve and the transparent observation pipe, and the inner circulation pipe, and close the other pipes. Fill the required amount of deionized water calculated in step ① into the solution tank through the circulation pump; ③ Temperature control: the temperature of the liquid in the solution tank is heated to the preset temperature through the combined control of the electric heater and the thermocouple; ④ Add liquid medicine, connect the free end of the liquid medicine input pipe to the corresponding liquid medicine, start working in the liquid medicine input pipe, the circulation pump, the check valve and the transparent observation pipe in the total output pipe, and the inner circulation pipe, and close the other pipes. Add the required amount of the corresponding liquid medicine calculated in step ① into the solution tank through the circulation pump. Repeat step ④ for multiple liquid medicines; ⑤ Add solid medicine, the total output pipe, solid medicine feeding hopper, knife-type gate valve and inner circulation pipe all start working, and the other pipes are closed. Add the solid medicine into the solid medicine feeding hopper, open the knife-type gate valve, and start the circulation pump to circulate the liquid in the solution tank in the total output pipe and the inner circulation pipe, so that the solid medicine is dissolved while being added. Repeat step ⑤ for multiple solid medicines; ⑥ Mixed solution. After all the reagents are added, the total output pipe and the internal circulation pipe start working, and the other pipes are closed. The solution is circulated and mixed evenly by running the circulation pump. When the thermocouple shows that the temperature in the solution tank has reached the preset temperature, and it is preliminarily observed from the transparent observation tube that the solution is mixed evenly, and then the manual sampling tube is used to take samples to confirm that there are no errors, all pipes can be closed and the resuscitation solution preparation is completed.

Images