CN215312420U - Full-automatic ion exchange resin preprocessing device is used in laboratory - Google Patents
Full-automatic ion exchange resin preprocessing device is used in laboratory Download PDFInfo
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- CN215312420U CN215312420U CN202120535472.2U CN202120535472U CN215312420U CN 215312420 U CN215312420 U CN 215312420U CN 202120535472 U CN202120535472 U CN 202120535472U CN 215312420 U CN215312420 U CN 215312420U
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Abstract
The utility model relates to a full-automatic ion exchange resin pretreatment device for a laboratory, which comprises a liquid bottle, a peristaltic pump, an exchange column, a control system, a waste liquid bottle and a waste liquid pump, wherein the peristaltic pump is arranged on the liquid bottle; the peristaltic pump is a multi-channel peristaltic metering pump; the liquid bottles are provided with a plurality of liquid bottles for containing liquids with different concentrations or different types; the number of the liquid bottles is equal to the number of the channels of the peristaltic pump; the channels of the peristaltic pump are connected with the liquid bottles through pipes, and the liquid bottles connected with each channel of the peristaltic pump are different; the control system is in communication connection with the peristaltic pump and is used for controlling the multi-channel switching of the peristaltic pump so as to pump liquids with different concentrations or different types; one end of the exchange column is connected with the peristaltic pump, the other end of the exchange column is connected with a waste liquid pump, and the waste liquid pump is connected with a waste liquid bottle. This application uses program control, can set up different velocity of flow and flow to liquid, reaches the purpose of optimizing the experiment step, provides new experimental scheme.
Description
Technical Field
The utility model relates to ion exchange resin treatment equipment, in particular to a full-automatic ion exchange resin pretreatment device for a laboratory.
Background
At present, a large amount of ion exchange resin is used by water treatment equipment of a thermal power plant for boiler water treatment, the quality of the treated water quality is determined by the quality of the ion exchange resin, and if the water quality is not good, the accidents of salt accumulation, scaling and corrosion of a generator set, even pipe explosion, shutdown and the like can be caused, and the safe operation of the generator set is seriously influenced.
Acceptance of new ion exchange resin, detection of resin in operation and detection of discarded resin all relate to pretreatment of resin, and the flow rate of acid liquor or alkali liquor in the standard of the detection method is specifically specified, such as 400mL of H specified in DL/T519 ion exchange resin acceptance Standard for Water treatment in Power plants2SO4The solution flows through the resin at the flow rate of 10mL/min, the flow rate is measured by matching a measuring cylinder and a stopwatch in a laboratory at present, the flow rate is controlled by combining the adjustment of a separating funnel valve, the flow rate cannot be accurately controlled in the steps, the pretreatment degree of the resin is inconsistent, and the subsequent detection data is greatly influenced. Pretreatment of the cation resin in DL/T519 "Standard for ion exchange resin for Water treatment in Power plant" 375mL of 1mol/L HCl solution was passed through the resin at a flow rate of 6mL/min for 62.5 minutes. Due to the inaccurate control of the flow rateThe valve opening of the separating funnel can be changed in the liquid outflow process, so that the liquid outflow speed is changed, the liquid has flowed to the specified volume within 62.5 minutes, a large amount of air enters the resin, and if the gas is not discharged in time, the liquid flowing in subsequently can flow bias, and partial resin can not contact with the regenerated liquid, so that the pretreatment effect is seriously influenced.
At present, a full-automatic ion exchange resin pretreatment device capable of accurately controlling the adding amount and the adding speed of liquid does not exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides the full-automatic ion exchange resin pretreatment device for the laboratory, which is reasonable in structural design, and can realize automatic and continuous addition of acid liquor, alkali liquor or other liquids, improve the consistency of resin pretreatment and improve the accuracy and repeatability of detection data.
The technical scheme adopted by the utility model for solving the problems is as follows: the utility model provides a laboratory is with full-automatic ion exchange resin preprocessing device which characterized in that: comprises a liquid bottle, a peristaltic pump, an exchange column, a control system, a waste liquid bottle and a waste liquid pump; the peristaltic pump is a multi-channel peristaltic metering pump; the liquid bottles are provided with a plurality of liquid bottles and are used for containing liquids with different concentrations or different types; the number of the liquid bottles is equal to the number of the channels of the peristaltic pump; the channel of the peristaltic pump is connected with the liquid bottle through a pipe, and the liquid bottle connected with each channel of the peristaltic pump is different; the control system is in communication connection with the peristaltic pump and is used for controlling multi-channel switching of the peristaltic pump so as to pump liquids with different concentrations or different types; one end of the exchange column is connected with the peristaltic pump, the other end of the exchange column is connected with a waste liquid pump, and the waste liquid pump is connected with a waste liquid bottle.
Preferably, the pretreatment device further comprises a laboratory bench, wherein the peristaltic pump, the exchange column, the control system and the waste liquid pump are all arranged on the laboratory bench, and the exchange column is arranged on the laboratory bench through a fixed buckle.
Preferably, the experiment table is further provided with a placing platform for placing the liquid bottle, and the placing platform is provided with a groove.
Preferably, the peristaltic pump is a three, four or six channel peristaltic metering pump.
Preferably, the pipe material is a polytetrafluoroethylene pipe.
Preferably, the liquid bottle is a polytetrafluoroethylene bottle.
Preferably, the exchange column is a glass exchange column or an organic glass exchange column.
Compared with the prior art, the utility model has the following advantages and effects:
1. the defects of the existing equipment are overcome, the adding amount and the adding speed of the liquid can be accurately controlled by using a peristaltic metering pump, and the adding amount and the adding speed of the liquid required by the standard are strictly executed;
2. the sequence of adding the liquid is controlled by a program, one liquid is automatically switched to the other liquid after being added, gas cannot enter the resin, and continuous addition of various liquid medicines is realized to realize automation;
3. the device can be suitable for pretreatment of various resins, and continuous addition of various liquids is realized by adopting a multi-channel peristaltic pump;
4. by using program control, different flow rates and flow rates can be set for the liquid, the aim of optimizing experimental steps is fulfilled, and a new experimental scheme is provided;
5. the device can test the pretreatment effect of various pretreatment reagents on the resin, and the data result can be used for guiding field production.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Description of reference numerals: 2. 3, 4 and 5 are liquid bottles;
a peristaltic pump 1; a fixing buckle 6; an exchange column 7; a control system 8; a waste liquid bottle 9; a placement platform 10; a waste liquid pump 11; a laboratory table 12.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
See fig. 1.
The embodiment discloses a full-automatic ion exchange resin pretreatment device for a laboratory, which comprises a liquid bottle, a peristaltic pump 1, an exchange column 7, a control system 8, a waste liquid bottle 9, a waste liquid pump 11 and a laboratory bench 12; peristaltic pump 1, exchange column 7, control system 8 and waste liquid pump 11 all install on laboratory bench 12, and wherein exchange column 7 is installed on laboratory bench 12 through fixed buckle 6. The experiment table 12 is also provided with a placing platform 10 for placing the liquid bottle, and the placing platform 10 is provided with a groove. The exchange column 7 is made of organic glass exchange column or glass exchange column.
In this embodiment, the peristaltic pump 1 is a multi-channel peristaltic metering pump, for example, a three-channel, four-channel or six-channel peristaltic metering pump is adopted, which is determined according to the experimental situation. The liquid bottles are provided with a plurality of liquid bottles for containing liquids with different concentrations or different types; the number of the liquid bottles is equal to the number of the channels of the peristaltic pump 1; the channels of the peristaltic pump 1 are connected with the liquid bottles through pipes, and the liquid bottles connected with each channel of the peristaltic pump 1 are different. The liquid bottle and the pipe are made of acid and alkali corrosion resistant materials, for example, the pipe is made of polytetrafluoroethylene pipe. The liquid bottle is made of polytetrafluoroethylene. In the embodiment, four liquid bottles are arranged, and the reference numbers 1, 2, 3 and 4 in the drawing are all polytetrafluoroethylene liquid bottles.
In this embodiment, the control system 8 is in communication connection with the peristaltic pump 1, and is configured to control the multi-channel switching of the peristaltic pump 1 so as to pump liquids of different concentrations or different kinds. One end of the exchange column 7 is connected with the peristaltic pump 1, the other end of the exchange column 7 is connected with a waste liquid pump 11, the waste liquid pump 11 is connected with a waste liquid bottle 9, and waste liquid generated by the exchange column 7 is pumped into the waste liquid bottle 9 by the waste liquid pump 11. The control system 8 may be of the prior art.
This example is further illustrated below in two specific experimental cases.
The first experimental case:
1. the full-automatic ion exchange resin pretreatment device for the laboratory is adopted as experimental equipment;
2. detecting 001X 7 cation resin (required to be converted into hydrogen form) by adopting a standard cation exchange resin exchange capacity determination method DL/T519-2014;
3. the exchange column adopts a glass exchange column, 25ml of resin sample without external water is taken, tap water is added, bubbles in the resin are removed by adopting a glass rod stirring mode, and the glass exchange column is fixed on a laboratory bench;
4. adding 500mL of hydrochloric acid solution with the concentration of 1mol/L into a first polytetrafluoroethylene bottle, adding demineralized water into a second polytetrafluoroethylene bottle, setting a program to control the flow rate of the 1mol/L hydrochloric acid solution in a channel of a peristaltic pump to be 6mL/min, the liquid volume to be 375mL, the flow rate of the demineralized water in the second channel to be 6mL/min and the liquid volume to be 1000mL, executing the first channel, and then automatically switching to the second channel;
5. the pretreated cation resin is subjected to detection of the total exchange capacity according to GB/T8144-2008;
6. the total exchange capacity of the 001X 7 cation resin (hydrogen form) was paralleled by experiments with 5.12mmol/L and 5.13mmol/L, repeatability was 0.00138mmol/L, which was much less than the standard 0.082 mol/L.
Experiment case two:
1. the full-automatic ion exchange resin pretreatment device for the laboratory is adopted as experimental equipment;
2. detecting 201 multiplied by 7 anion resin (required to be converted into hydroxide type) by adopting a standard cation exchange resin exchange capacity determination method DL/T519-2014;
3. the exchange column adopts an organic glass exchange column, 25ml of resin sample with external water removed is taken, tap water is added, bubbles in the resin are removed by adopting a glass rod stirring mode, and the glass exchange column is fixed on a laboratory bench;
4. adding 500mL of sulfuric acid solution with the concentration of 0.5 mol/L into a first polytetrafluoroethylene bottle, adding demineralized water into a second polytetrafluoroethylene bottle, adding 700mL of sodium hydroxide solution with the concentration of 1mol/L into a third polytetrafluoroethylene bottle, adding 700mL of sodium hydroxide solution with the concentration of 2mol/L into a fourth polytetrafluoroethylene bottle, setting a program to control the flow rate of the 0.5 mol/L sulfuric acid solution in a channel of a peristaltic pump to be 10mL/min, the liquid volume to be 400mL, the flow rate of the demineralized water to be 9mL/min, the liquid volume to be 250mL, the flow rate of the 1mol/L sodium hydroxide solution in a three channel to be 10mL/min, the liquid volume to be 500mL, the flow rate of the 2mol/L sodium hydroxide solution in a four channel to be 10mL/min and the liquid volume to be 500mL, sequentially executing a first channel, a second channel and a third channel, and then automatically switching to the second channel, wherein the flow rate of the desalted water is set to be 9mL/min, and the volume is 1000 mL;
5. the pretreated anion resin is subjected to detection of the total exchange capacity according to GB/T5760-2000 method for determining the exchange capacity of hydroxide-type anion exchange resin;
6. the results of parallel experiments with full exchange capacity of 201X 7 anionic resin (in hydrogen form) were 3.92mmol/L, 3.94mmol/L, the difference being 0.02mmol/L, much less than the standard specification of 0.11 mmol/L.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the utility model are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.
Claims (7)
1. The utility model provides a laboratory is with full-automatic ion exchange resin preprocessing device which characterized in that: comprises a liquid bottle, a peristaltic pump (1), an exchange column (7), a control system (8), a waste liquid bottle (9) and a waste liquid pump (11); the peristaltic pump (1) is a multi-channel peristaltic metering pump; the liquid bottles are provided with a plurality of liquid bottles and are used for containing liquids with different concentrations or different types; the number of the liquid bottles is equal to the number of the channels of the peristaltic pump (1); the channel of the peristaltic pump (1) is connected with the liquid bottle through a pipe, and the liquid bottle connected with each channel of the peristaltic pump (1) is different; the control system (8) is in communication connection with the peristaltic pump (1) and is used for controlling multi-channel switching of the peristaltic pump (1) so as to pump liquids with different concentrations or different types; one end of the exchange column (7) is connected with the peristaltic pump (1), the other end of the exchange column (7) is connected with a waste liquid pump (11), and the waste liquid pump (11) is connected with a waste liquid bottle (9).
2. The laboratory is with full-automatic ion exchange resin preprocessing device of claim 1 characterized in that: the pretreatment device also comprises an experiment table (12), wherein the peristaltic pump (1), the exchange column (7), the control system (8) and the waste liquid pump (11) are all arranged on the experiment table (12), and the exchange column (7) is arranged on the experiment table (12) through a fixed buckle (6).
3. The laboratory is with full-automatic ion exchange resin preprocessing device of claim 2 characterized in that: the experiment table (12) is further provided with a placing platform (10) for placing the liquid bottle, and the placing platform (10) is provided with a groove.
4. The laboratory is with full-automatic ion exchange resin preprocessing device of claim 1 characterized in that: the peristaltic pump (1) is a three, four or six-channel peristaltic metering pump.
5. The laboratory is with full-automatic ion exchange resin preprocessing device of claim 1 characterized in that: the pipe adopts a polytetrafluoroethylene pipe.
6. The laboratory is with full-automatic ion exchange resin preprocessing device of claim 1 characterized in that: the liquid bottle adopts a polytetrafluoroethylene bottle.
7. The laboratory is with full-automatic ion exchange resin preprocessing device of claim 1 characterized in that: the exchange column (7) adopts a glass exchange column or an organic glass exchange column.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083379A (en) * | 2021-03-15 | 2021-07-09 | 华电电力科学研究院有限公司 | Full-automatic ion exchange resin pretreatment device for laboratory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083379A (en) * | 2021-03-15 | 2021-07-09 | 华电电力科学研究院有限公司 | Full-automatic ion exchange resin pretreatment device for laboratory |
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