Dynamic gas evaluation experiment device
By designing a dynamic gas evaluation experimental device, using regeneration pipeline systems and molecular sieve test pipeline systems, dynamic performance testing of molecular sieve and alumina is achieved, and the problem of inability to evaluate their dynamic performance in the prior art was solved, and important test data were obtained to guide product improvement.
Patent Information
- Application Number
- CN202421600375.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing molecular sieve and alumina performance tests are mainly static tests, and their dynamic performance cannot be evaluated, and overall test data for the adsorption process is lacking.
A dynamic gas evaluation experimental device was designed, including a regeneration pipeline system and a molecular sieve test pipeline system. Through nitrogen regeneration and the delivery of carbon dioxide standard gas, combined with a carbon dioxide analyzer and dew point meter, dynamic adsorption performance test of molecular sieve and alumina is achieved.
Dynamic performance testing of molecular sieve and alumina was achieved, overall test data of their adsorption process was obtained, and important guidance on product performance improvement was provided.
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Figure CN222866491U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of experimental devices, in particular to a dynamic gas evaluation experimental device. Background Art
[0002] Existing molecular sieve adsorption tests are basically static tests, using BET to test CO2 static adsorption data under different pressures. Existing alumina water absorption tests are basically static tests, that is, dry alumina is placed in a drying dish of saturated salt water for 24 hours and weighed. However, the above-mentioned adsorption performance test of molecular sieves and water absorption performance test of alumina can only be static tests, that is, the molecular sieve or alumina is tested after the experiment to obtain test results, and the dynamic performance of the molecular sieve, i.e., alumina, cannot be evaluated, that is, the overall test data of the adsorption process of the molecular sieve and the water absorption process of alumina cannot be obtained, and these dynamic data have an important guiding role in improving product performance. Therefore, an experimental device that can obtain dynamic test experiments is needed. Utility Model Content
[0003] The utility model aims to provide a dynamic gas evaluation experimental device to solve the problem in the prior art that the dynamic performance test of the molecular sieve cannot be performed.
[0004] To achieve the above-mentioned purpose, a dynamic gas evaluation experimental device of the utility model adopts the following technical scheme: a dynamic gas evaluation experimental device, including a regeneration pipeline system and a molecular sieve test pipeline system;
[0005] The regeneration pipeline system includes a first pipeline, the first pipeline is used to connect to a nitrogen gas source, and a first valve, a first pressure gauge, a second valve and a first flow meter are sequentially arranged on the first pipeline along the gas flow direction; the gas outlet of the first pipeline can be used to connect to a molecular sieve adsorber or an alumina adsorber to achieve the regeneration of the molecular sieve or alumina;
[0006] The first pipeline is connected to a second pipeline, one end of the second pipeline is used to be connected to a carbon dioxide gas source, and the other end is connected to the first pipeline portion between the first valve and the first pressure gauge, and a third valve is arranged on the second pipeline; the molecular sieve test pipeline system includes a third pipeline, and a second pressure gauge, a fourth valve, a fifth valve, a second flow meter and a carbon dioxide analyzer are sequentially arranged on the third pipeline along the air flow direction; the molecular sieve test pipeline system also includes a fourth pipeline, one end of the fourth pipeline is connected to the third pipeline portion between the fourth valve and the fifth valve, and the other end is vented, and a sixth valve is arranged on the fourth pipeline; the air outlet of the first pipeline and the air inlet of the third pipeline can be connected to the air inlet and the air outlet of the molecular sieve adsorber respectively to realize the dynamic adsorption performance test of the molecular sieve.
[0007] The dynamic evaluation experimental device also includes a heater, which has a cavity for placing a molecular sieve adsorber or an alumina adsorber to achieve heating regeneration of the molecular sieve or the alumina by nitrogen.
[0008] The flow range of the first flow meter is greater than the flow range of the second flow meter.
[0009] The first pipeline is connected to a fifth pipeline, an air inlet end of the fifth pipeline is connected to the first pipeline portion between the first pressure gauge and the second valve, and a seventh valve and a third flow meter are arranged on the fifth pipeline;
[0010] The alumina test pipeline system includes a sixth pipeline, on which a third pressure gauge, an eighth valve, a ninth valve, a fourth flow meter and a dew point meter are sequentially arranged along the air flow direction; the alumina test pipeline system also includes a seventh pipeline, one end of which is connected to the sixth pipeline portion between the eighth valve and the ninth valve, and the other end is vented, and the seventh pipeline is provided with a tenth valve;
[0011] The alumina test pipeline system also includes an eighth pipeline, one end of the eighth pipeline is connected to the air outlet end of the third pipeline, and a humidifier and a buffer tank are sequentially arranged on the eighth pipeline in the air flow direction; the air outlet of the eighth pipeline and the air inlet of the sixth pipeline can be respectively connected to the air inlet and air outlet of the alumina adsorber to realize the dynamic adsorption performance test of alumina to water vapor.
[0012] The flow range of the third flow meter is greater than the flow range of the fourth flow meter.
[0013] The beneficial effects of the utility model are as follows: the outlet of the first pipeline of the regeneration pipeline system is connected to the outlet of the molecular sieve adsorber or the outlet of the alumina adsorber (the outlet here refers to the outlet of the molecular sieve adsorber or the alumina adsorber during the adsorption process), which is equivalent to nitrogen reverse blowing to achieve the regeneration of the molecular sieve or alumina. The carbon dioxide standard gas is transported through the second pipeline and connected to the air inlet of the molecular sieve adsorber, and the outlet of the molecular sieve adsorber is connected to the air inlet end of the third pipeline, and the dynamic adsorption performance of the molecular sieve is dynamically tested in conjunction with a carbon dioxide analyzer.
[0014] Furthermore, the setting of the heater can realize the heating regeneration of the molecular sieve or alumina, which can make the regeneration effect of the molecular sieve or alumina better.
[0015] Furthermore, when the dynamic adsorption performance of alumina to water vapor is tested, the outlet pipe of the eighth pipeline is connected to the air inlet of the alumina adsorber, and the air inlet end of the sixth pipeline is connected to the air outlet of the alumina adsorber, and a dew point meter is used to dynamically test the dynamic adsorption performance of alumina. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1It is a structural schematic diagram of an embodiment of a dynamic gas evaluation experimental device of the utility model;
[0017] Figure 2 It is a schematic diagram of the connection structure of the device when the molecular sieve or alumina is regenerated;
[0018] Figure 3 This is a schematic diagram of the connection structure of the device when performing a dynamic adsorption test on a molecular sieve;
[0019] Figure 4 It is a schematic diagram of the connection structure of the device for dynamic adsorption test of aluminum oxide. DETAILED DESCRIPTION
[0020] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0021] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0022] An embodiment of a dynamic gas evaluation experimental device of the utility model is as follows Figure 1-4 As shown, it includes a regeneration pipeline system, a molecular sieve test pipeline system, an alumina test pipeline system, a heater 27 , a molecular sieve adsorber 30 , an alumina adsorber 31 , a humidifier 28 and a buffer tank 29 .
[0023] The regeneration pipeline system includes a first pipeline 1, which is used to connect to a nitrogen gas source. A first valve 2, a first pressure gauge 3, a second valve 4 and a first flow meter 5 are sequentially arranged on the first pipeline in the direction of gas flow. A second pipeline 6 is connected to the first pipeline, one end of which is used to connect to a carbon dioxide gas source and the other end is connected to the first pipeline portion between the first valve and the first pressure gauge, and a third valve 7 is arranged on the second pipeline. A fifth pipeline 24 is connected to the first pipeline, the air inlet end of the fifth pipeline is connected to the first pipeline portion between the first pressure gauge and the second valve, and a seventh valve 25 and a third flow meter 26 are arranged on the fifth pipeline.
[0024] The molecular sieve test pipeline system includes a third pipeline 8, on which a second pressure gauge 9, a fourth valve 10, a fifth valve 11, a second flowmeter 12 and a carbon dioxide analyzer 13 are sequentially arranged along the airflow direction. The molecular sieve test pipeline system also includes a fourth pipeline 14, one end of which is connected to the third pipeline part between the fourth valve and the fifth valve, and the other end is vented, and the fourth pipeline is provided with a sixth valve 15. The flow range of the first flowmeter is greater than the flow range of the second flowmeter.
[0025] The alumina test pipeline system includes a sixth pipeline 16, on which a third pressure gauge 17, an eighth valve 18, a ninth valve 19, a fourth flowmeter 20 and a dew point meter 21 are sequentially arranged along the airflow direction. The flow range of the third flowmeter is greater than the flow range of the fourth flowmeter. The alumina test pipeline system also includes a seventh pipeline 22, one end of which is connected to the sixth pipeline portion between the eighth valve and the ninth valve, and the other end is vented, and a tenth valve 23 is arranged on the seventh pipeline. The alumina test pipeline system also includes an eighth pipeline 32, one end of which is connected to the air outlet end of the third pipeline, and a humidifier 28 and a buffer tank 29 are sequentially arranged along the airflow direction of the eighth pipeline. The function of the humidifier is to obtain saturated moisture, and the function of the buffer tank is to separate free water in the saturated moisture.
[0026] In this embodiment, the molecular sieve adsorber and the alumina adsorber are both prior art, and their specific structures are not described in detail in this embodiment. In short, both adsorbers include a cylinder for filling with molecular sieve or alumina, and the cylinder is provided with an air inlet and an air outlet.
[0027] When the molecular sieve or alumina needs to be regenerated, the device is connected as follows Figure 2 As shown, the gas outlet of the first pipeline is connected to the molecular sieve adsorber 30 or the alumina adsorber 31, specifically to the gas outlet of the molecular sieve adsorber or the gas outlet of the alumina adsorber. The gas outlet here refers to the gas outlet of the molecular sieve adsorber or the alumina adsorber during the adsorption process, which is equivalent to nitrogen reverse blowing to achieve the regeneration of the molecular sieve or alumina. The heater 27 adopts the existing water bath heating device. During regeneration, the molecular sieve adsorber or the alumina adsorber is placed in the cavity of the heater, that is, in the water bath, to achieve heating regeneration. At this time, nitrogen is transported through the first pipeline, and the flow rate of the first flowmeter is controlled to be 10L / min, the first pressure gauge is maintained at 0.1Mpa, and the water bath heating temperature is stabilized at 300°C for activation regeneration.
[0028] When the dynamic adsorption performance test of molecular sieve is required, the device is connected as follows Figure 3As shown, the gas outlet of the first pipeline and the gas inlet of the third pipeline can be respectively connected to the gas inlet and gas outlet of the molecular sieve adsorber 30. The carbon dioxide standard gas is delivered through the second pipeline, and the second valve and the sixth valve are adjusted to make the second pressure gauge at 0.5Mpa, the first flow meter is controlled at 40L / min, and the flow rate of the carbon dioxide analyzer is adjusted to 0.5L / min through the fifth valve to conduct a penetration experiment.
[0029] When dynamic adsorption performance test of aluminum oxide is required, the device is connected as follows Figure 4 As shown, the outlet of the eighth pipeline 32 and the inlet of the sixth pipeline can be connected to the inlet and outlet of the alumina adsorber, respectively. Nitrogen is transported through the first pipeline and the fifth pipeline, and the seventh valve and the tenth valve are adjusted to maintain the third pressure gauge at 0.5Mpa and the third flow meter at 5L / min. The dew point meter flow is adjusted to 0.5L / min through the ninth valve to conduct a penetration experiment. The device integrates the dynamic penetration experiment of molecular sieves and the dynamic water absorption test of alumina, and performs dynamic and systematic tests on molecular sieves and alumina, which can comprehensively evaluate the dynamic performance of the product and provide guidance for production improvements of the product.
[0030] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.
[0031] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.
[0032] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.
Claims
1. A dynamic gas evaluation experimental device, characterized in that: Including regeneration piping system and molecular sieve test piping system; The regeneration pipeline system includes a first pipeline, the first pipeline is used to connect to a nitrogen gas source, and a first valve, a first pressure gauge, a second valve and a first flow meter are sequentially arranged on the first pipeline along the gas flow direction; the gas outlet of the first pipeline can be used to connect to a molecular sieve adsorber or an alumina adsorber to achieve the regeneration of the molecular sieve or alumina; The first pipeline is connected to a second pipeline, one end of the second pipeline is used to be connected to a carbon dioxide gas source, and the other end is connected to the first pipeline portion between the first valve and the first pressure gauge, and a third valve is arranged on the second pipeline; the molecular sieve test pipeline system includes a third pipeline, and a second pressure gauge, a fourth valve, a fifth valve, a second flow meter and a carbon dioxide analyzer are sequentially arranged on the third pipeline along the air flow direction; the molecular sieve test pipeline system also includes a fourth pipeline, one end of the fourth pipeline is connected to the third pipeline portion between the fourth valve and the fifth valve, and the other end is vented, and a sixth valve is arranged on the fourth pipeline; the air outlet of the first pipeline and the air inlet of the third pipeline can be connected to the air inlet and the air outlet of the molecular sieve adsorber respectively to realize the dynamic adsorption performance test of the molecular sieve.
2. The dynamic gas evaluation experimental device according to claim 1, characterized in that: The dynamic evaluation experimental device also includes a heater, which has a cavity for placing a molecular sieve adsorber or an alumina adsorber to achieve heating regeneration of the molecular sieve or the alumina by nitrogen.
3. The dynamic gas evaluation experimental device according to claim 1, characterized in that: The flow range of the first flow meter is greater than the flow range of the second flow meter.
4. The dynamic gas evaluation experimental device according to claim 1, 2 or 3, characterized in that: The first pipeline is connected to a fifth pipeline, an air inlet end of the fifth pipeline is connected to the first pipeline portion between the first pressure gauge and the second valve, and a seventh valve and a third flow meter are arranged on the fifth pipeline; The alumina test pipeline system includes a sixth pipeline, on which a third pressure gauge, an eighth valve, a ninth valve, a fourth flow meter and a dew point meter are sequentially arranged along the air flow direction; the alumina test pipeline system also includes a seventh pipeline, one end of which is connected to the sixth pipeline portion between the eighth valve and the ninth valve, and the other end is vented, and the seventh pipeline is provided with a tenth valve; The alumina test pipeline system also includes an eighth pipeline, one end of the eighth pipeline is connected to the air outlet end of the third pipeline, and a humidifier and a buffer tank are sequentially arranged on the eighth pipeline in the air flow direction; the air outlet of the eighth pipeline and the air inlet of the sixth pipeline can be respectively connected to the air inlet and air outlet of the alumina adsorber to realize the dynamic adsorption performance test of alumina to water vapor.
5. The dynamic gas evaluation experimental device according to claim 4, characterized in that: The flow range of the third flow meter is greater than the flow range of the fourth flow meter.