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A device for measuring the total exchange capacity of hydrogen-type weakly acidic cation exchange resin

A technology of cation exchange and weak acidity, which is applied in the direction of measuring devices, material separation, instruments, etc., can solve the problems that the test cannot be guaranteed to be carried out smoothly and is not firm, and achieves the effect of convenient outflow and convenient operation

Inactive Publication Date: 2017-12-12
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the tapered stopper is pointed, use a heavy object to press the pointed object. Because the contact point is too small, the heavy object is not firmly pressed on the bottle stopper.
During the test, due to the high air pressure in the bottle, accidents occurred from time to time when the bottle cork was opened and fell to the ground and broke, which led to the termination of the test halfway, and the smooth progress of the test could not be guaranteed.

Method used

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  • A device for measuring the total exchange capacity of hydrogen-type weakly acidic cation exchange resin
  • A device for measuring the total exchange capacity of hydrogen-type weakly acidic cation exchange resin
  • A device for measuring the total exchange capacity of hydrogen-type weakly acidic cation exchange resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The device A of the present invention is composed of the device B and the device C, the device B and the device C are combined in a complete set, and the device C is set on the outside of the device B to form the device A. Device B is a 250mL conical flask with an external ground mouth; device C has an internal ground mouth to match with device B, and device C is equipped with a piston, a ventilation tube, and a filter element. The designed device C has a large weight and is tightly ground to the device B, which avoids the problem of being lifted and broken during the cork experiment. After soaking the soaking solution containing ion exchange resin in a water-soluble pot at 60°C for 3 hours, use device A to quickly separate the resin from the soaking solution, and the obtained soaking solution does not contain resin, thus avoiding the difference in cooling time and cooling The measurement error of the total exchange capacity of the hydrogen-form weakly acidic cation exc...

Embodiment 2

[0052] The difference from Example 1 is that the device B is a container with an outer grinding port, and the device C is a filter with an inner grinding port, and the inner diameter of the inner grinding port is the same as the outer diameter of the outer grinding port.

Embodiment 3

[0054] The difference from Example 1 is that the device B is a container with an inner grinding port, and the device C is a filter with an outer grinding port, and the inner diameter of the inner grinding port is the same as the outer diameter of the outer grinding port.

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Abstract

The invention discloses a device for determining complete exchange capacity of hydrogen-type weakly acidic cation exchange resin. The device is composed of a device B and a device C, wherein the device B is an open container, the device C comprises a filter, a flow control device is arranged on an outlet pipeline of the device C, and an opening of the device B is connected with an inlet end of the device C; when the flow control device is closed, a closed cavity is formed between the device C and the device B, and the size of the cavity is kept unchanged; the device C is provided with a ventilation pipe, the bottom end of the ventilation pipe stretches into the device B, the top end of the ventilation pipe stretches out of the device B, and the gas flow control device is arranged at the top end of the ventilation pipe. The device solves the problem that determination of the complete exchange capacity of the hydrogen-type weakly acidic cation exchange resin is affected by difference in cooling time and cooling mode of the resin and soaking liquid as well as suction of the resin when moving out of the soaking liquid, and avoids the situation that a bottle plug is broken in a test.

Description

technical field [0001] The invention belongs to the field of power grid construction, in particular to a device for measuring the total exchange capacity of a hydrogen-type weakly acidic cation exchange resin. technical background [0002] Hydrogen type weakly acidic cation exchange resin is widely used in power plant water treatment and circulating water treatment, and plays an important role in purifying water quality and removing calcium and magnesium ions in water. The total exchange capacity is an important performance index of hydrogen-type weakly acidic cation exchange resins. It is related to the quality of resin products and the amount of water produced, as well as the price and interests between suppliers and users. Therefore, accurate determination of hydrogen-type weakly acidic cation exchange resins Full switching capacity is of great significance. [0003] The total exchange capacity of an ion exchange resin refers to the total amount of chemical groups that c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/96
Inventor 王晓涛孙伟兵周少玲张永许立国高坚张怀军
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY