CN-121994326-A - Device and method for testing solid-liquid reaction gas quantity under heating condition

CN121994326ACN 121994326 ACN121994326 ACN 121994326ACN-121994326-A

Abstract

The invention relates to a device and a method for testing the quantity of solid-liquid reaction gas under a heating condition, wherein the device comprises a reaction mechanism for providing a solid-liquid reaction place, an intermediate cooling mechanism for cooling the reaction gas discharged from the reaction container, a measuring mechanism for measuring the gas quantity of the cooled reaction gas, and a water container capable of receiving the water discharged from the measuring water tank, wherein the side of the measuring water tank is also provided with a liquid level standard device capable of measuring the liquid level inside the measuring water tank, and the air container can receive the reaction gas discharged from the intermediate cooling mechanism. Compared with the prior art, the invention can eliminate the influence of dead volume measurement and different gas properties and temperatures, and can realize the measurement of the reaction gas yield while storing and collecting the generated gas.

Inventors

WU JIACHENG
PU ZHENGYU
SUN HUA
Ding Yiman
WU HAO
FANG PENG
NIE WENLEI
LIU WEI

Assignees

上海化工院检测有限公司
上海化工研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20260130

Claims (10)

1. The device for testing the solid-liquid reaction gas quantity under the heating condition is characterized by comprising the following components: The reaction mechanism for providing a solid-liquid reaction place comprises a reaction container with a closed reaction chamber, and a liquid container which is suspended in the reaction container and is filled with liquid raw materials, wherein the bottom of the liquid container is provided with a liquid outlet which can be opened and closed; An intermediate cooling mechanism for cooling the reaction gas discharged from the reaction vessel; The measuring mechanism is used for measuring the gas quantity of the cooled reaction gas and comprises a measuring water tank, a gas storage container which is in an inverted state with a downward opening and is partially immersed below the liquid level of the measuring water tank, and a water container which can receive water discharged from the measuring water tank, wherein a liquid level standard device which can measure the liquid level in the measuring water tank is arranged beside the measuring water tank, and the gas storage container can receive the reaction gas from the intermediate cooling mechanism.
2. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 1, wherein the upper part of the reaction container is opened and is sealed by a first rubber plug to form the reaction cavity; The reaction mechanism further comprises a hose assembly penetrating through the first rubber plug and extending into the reaction chamber, and the hose assembly is connected with external air supply equipment.
3. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 2, wherein the first rubber plug is further provided with a temperature sensor extending into the liquid container; the hose assembly comprises a gas hose with a stop valve, a capillary needle tube connected with the gas hose, and a needle tube sleeve penetrating through the first rubber plug, wherein the capillary needle tube penetrates through the needle tube sleeve and stretches into the reaction chamber.
4. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 3, wherein a second rubber plug is arranged at the liquid outlet so as to realize the opening and closing of the liquid outlet, the capillary needle tube further penetrates through the second rubber plug, and the capillary needle tube and the needle tube sleeve are kept sealed and have adjustable relative positions.
5. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 1, wherein the reaction mechanism further comprises a constant temperature container, the bottom of the reaction container is arranged in the constant temperature container through a container bracket, and a magnetic stirrer is further arranged in the reaction cavity.
6. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 1, wherein the intermediate cooling mechanism comprises a constant temperature water tank and a cooling coil immersed below the liquid level of the constant temperature water tank, and two ends of the cooling coil are respectively connected with the reaction chamber and the gas storage container through exhaust pipes.
7. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 1, wherein a three-way valve is arranged on a gas pipeline between the intermediate cooling mechanism and the measuring mechanism, a second measuring branch is led out from the three-way valve, and the second measuring branch is directly connected with the soap film flowmeter.
8. The device for measuring the amount of the solid-liquid reaction gas under the heating condition according to claim 1, wherein the liquid level aligner can emit horizontal laser light to calibrate the liquid level in the measuring water tank.
9. The device for testing the amount of the solid-liquid reaction gas under the heating condition according to claim 1, wherein a water drain valve is arranged at the bottom of the measuring water tank, and the water container is positioned below the water drain valve and can receive water discharged from the water drain valve.
10. A method for testing the amount of solid-liquid reaction gas under warming, characterized in that it is carried out based on the testing device according to any one of claims 1 to 9, said method comprising the steps of: (1) Weighing a solid sample, placing the solid sample into the reaction container, and filling liquid raw materials into a liquid container to assemble the testing device; (2) Introducing inert gas into the reaction container to replace other gas in the reaction container, and then opening the liquid outlet to enable the liquid raw material to contact and react with the solid raw material; (3) And collecting the reaction gas through the gas storage container, and measuring the water amount discharged before and after the gas storage container collects the reaction gas under the condition of maintaining the same liquid level of the measuring water tank to obtain the amount of the reaction gas.

Description

Device and method for testing solid-liquid reaction gas quantity under heating condition Technical Field The invention belongs to the technical field of test equipment, and relates to a device and a method for testing the solid-liquid reaction gas quantity under a heating condition. Background In the fields of public safety, chemical materials, environmental safety and the like, the gas production detection means of the solid-liquid gas discharge reaction is an objective research method for evaluating the dangers or performances of water-meeting reaction substances and solid catalysts, and the method is not only favorable for intuitively acquiring gas production data, but also provides important data basis for evaluating the performances of chemicals. In recent years, with the continuous development and perfection of inspection and detection technologies, the solid-liquid reaction gas amount testing device is also continuously optimized and iterated. However, in the existing testing devices which are independently built in laboratories on the market, a drain weighing method is generally used by common devices, and the testing devices have the defects that a temperature control part in the testing device only relates to a material reaction device part, the constant temperature of a gas transmission part for reaction and gas production cannot be met, so that the detection result is influenced, the influence of dead volume in a testing system is difficult to completely solve, the measuring method is single, the correctness of the result cannot be mutually verified by a plurality of methods, and the produced gas cannot be stored and collected. The device for precisely measuring the reaction generated gas amount by a preset exchange method provided by the Chinese patent CN116448202A comprises a replacement reactor, a main reactor and a gas measuring component which are sequentially connected through a pipeline, wherein a liquid adding bottle is further arranged on the main reactor, and at least part of the pipeline between the main reactor and the gas measuring component is arranged in a constant temperature tank. The device has the advantages that the replacement reactor and the main reactor are not provided with constant temperature measures, the errors caused by temperature in the main reactor are difficult to be thoroughly eliminated, and the device needs to be capable of rapidly generating a large amount of gas through solid-liquid reaction, so that the gas replacement of the whole set of device is realized, and the aim of pre-replacement is difficult to achieve if the reaction gas yield is low or the gas production rate is low. Disclosure of Invention The invention aims to provide a device and a method for testing the solid-liquid reaction gas quantity under a heating condition, which can eliminate the influence of dead volume measurement and different gas properties and temperatures, and can realize the measurement of the reaction gas production while storing and collecting the generated gas. The aim of the invention can be achieved by the following technical scheme: In one aspect, the invention provides a device for testing the amount of solid-liquid reaction gas under heating, comprising: The reaction mechanism for providing a solid-liquid reaction place comprises a reaction container with a closed reaction chamber, and a liquid container which is suspended in the reaction container and is filled with liquid raw materials, wherein the bottom of the liquid container is provided with a liquid outlet which can be opened and closed; An intermediate cooling mechanism for cooling the reaction gas discharged from the reaction vessel; The measuring mechanism is used for measuring the gas quantity of the cooled reaction gas and comprises a measuring water tank, a gas storage container which is in an inverted state with a downward opening and is partially immersed below the liquid level of the measuring water tank, and a water container which can receive water discharged from the measuring water tank, wherein a liquid level standard device which can measure the liquid level in the measuring water tank is arranged beside the measuring water tank, and the gas storage container can receive the reaction gas from the intermediate cooling mechanism. Further, the upper part of the reaction container is opened and is sealed by a first rubber plug to form the reaction cavity; The reaction mechanism further comprises a hose assembly penetrating through the first rubber plug and extending into the reaction chamber, and the hose assembly is connected with external air supply equipment. Further, the first rubber plug is also provided with a temperature sensor which extends into the liquid container; the hose assembly comprises a gas hose with a stop valve, a capillary needle tube connected with the gas hose, and a needle tube sleeve penetrating through the first rubber plug, wherein the capillary needle tube penetrates throug