Small material gas release measuring device

Abstract

The utility model discloses a small material gas release measuring device which comprises a material reaction kettle, a carrier gas introduction device, a carrier gas flow speed adjusting device, a carrier gas outflow device and a blank control reaction kettle. The material reaction kettle is provided with a first interface and a second interface; a first interface of the material reaction kettle is connected with a carrier gas inlet device, and a second interface is connected with a carrier gas outlet device; the blank control reaction kettle is provided with a third interface and a fourth interface; a third interface of the blank control reaction kettle is communicated with a carrier gas inlet device, and a fourth interface is connected with a carrier gas outlet device; the carrier gas flow speed adjusting device is arranged among the carrier gas introducing device, the first interface and the third interface; the organic and inorganic concentration changes of the released gas are tested through an environment gas sampling technology and a GC-MS organic matter and IC inorganic matter analysis technology, the method covers the release stage immediately after a material package is opened and the release stage after the material package is placed for a certain time, and the influence of the ventilation effect of the material on the gas release characteristic can be comprehensively evaluated.

Description

Technical Field

[0001] The utility model relates to the technical field related to small material detection, and in particular to a small material gas release measuring device for solid airtight materials such as lubricants, epoxy glue, AB glue, and fire retardant coatings. Background Art

[0002] With technological advancements and the increasing demand for clean environments in industrial production, cleanrooms, as crucial facilities for ensuring product quality and improving production efficiency, are becoming increasingly important. Controlling the concentration of gaseous molecular pollutants during their construction and operation is crucial. Cleanroom construction materials may release volatile organic compounds (VOCs) during use. Failure to effectively control these substances can directly impact the cleanliness and AMC quality of the cleanroom, potentially posing a threat to process products and personnel health. Therefore, studying the outgassing properties of cleanroom construction materials is of great significance.

[0003] Based on the above situation, our company proposed corresponding equipment technology transformation and developed and designed a small material release measurement device. Utility Model Content

[0004] The purpose of the utility model is to provide a small material outgassing measuring device to solve the problems in the prior art.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a small material release gas measuring device, including a material reactor, a carrier gas inlet device, a carrier gas flow rate regulating device, a carrier gas outflow device and a blank control reactor;

[0006] The material reactor is provided with a first interface and a second interface;

[0007] The first interface of the material reactor is connected to the carrier gas introduction device;

[0008] The second interface is connected to a carrier gas outflow device;

[0009] The carrier gas outflow device includes a first sampling device group and a second sampling device group;

[0010] The blank control reactor is provided with a third interface and a fourth interface;

[0011] The third interface of the blank control reactor is connected to the carrier gas inlet device, and the fourth interface is connected to the carrier gas outflow device;

[0012] The carrier gas flow rate regulating device is arranged between the carrier gas introduction device and the first interface and the third interface.

[0013] In a preferred embodiment, the material reactor and the blank control reactor are both glass devices.

[0014] In a preferred embodiment, the carrier gas inlet device is loaded with clean nitrogen gas with a purity of 99.9995%.

[0015] In a preferred embodiment, the carrier gas flow rate regulating device is a float flowmeter.

[0016] In a preferred embodiment, the first sampling device group includes an adsorption tube and a sampling pump.

[0017] In a preferred solution, the second sampling device set includes an impact bottle filled with ultrapure water and a sampling pump.

[0018] Due to the application of the above technical solution, the beneficial effects of this application compared with the prior art are:

[0019] The present application discloses a small material release gas measuring device, which adopts a material release reactor and a blank control reactor through the setting of a material reactor, a carrier gas inlet device, a carrier gas flow rate regulating device, a carrier gas outflow device and a blank control reactor. The device tests the changes in organic and inorganic concentrations of the released gas through the sampling technology of environmental gas and the analysis technology of GC-MS organic matter and IC inorganic matter, covering the immediate release stage after the material package is opened to the post-release stage after a certain period of time, and can comprehensively evaluate the influence of the ventilation effect of the material on the release characteristics; it can test the release of small, solid materials and the like, and can simulate the release of materials under normal ventilation conditions, reducing the interference of external conditions such as temperature and humidity on the detection structure, with smaller errors and more in line with engineering applications; the non-reactivity and high purity of the carrier gas will not interfere with or contaminate the materials that need to be detected for released gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Attachment Figure 1 A schematic diagram of a small material outgassing measuring device according to the present invention;

[0022] Among them: 1. Material reactor; 2. Carrier gas inlet device; 3. Carrier gas flow rate adjustment device; 4. Carrier gas outflow device; 5. Blank control reactor; 6. First interface; 7. Second interface; 8. First sampling device group; 9. Second sampling device group; 10. Third interface; 11. Fourth interface; 12. Adsorption tube; 13. Sampling pump; 14. Impact bottle. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0026] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0027] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Example 1

[0030] Attachment Figure 1 The utility model is a small material release gas measurement device, comprising a material reactor 1, a carrier gas inlet device 2, a carrier gas flow rate regulating device 3, a carrier gas outflow device 4 and a blank control reactor 5; wherein the material reactor 1 and the blank control reactor 5 are both glass devices; the carrier gas inlet device 2 is loaded with clean nitrogen with a purity of 99.9995%; the carrier gas flow rate regulating device 3 is a float flowmeter;

[0031] The material reactor 1 is provided with a first interface 6 and a second interface 7; the first interface 6 is an inlet for clean nitrogen with a purity of 99.9995%, and the second interface 7 is an outlet for material release;

[0032] The first interface 6 of the material reactor 1 is connected to the carrier gas introduction device 2; after the clean nitrogen gas with a purity of 99.9995% in the carrier gas introduction device 2 is introduced into the material reactor 1, it serves as both a carrier gas and a circulating gas, carrying the released gas of the material in the material reactor 1 and flowing in the material reactor 1;

[0033] The second interface 7 is connected to the carrier gas outflow device 4;

[0034] The carrier gas outflow device 4 includes a first sampling device group 8 and a second sampling device group 9; the first sampling device group 8 includes an adsorption tube 12 and a sampling pump 13, the adsorption tube 12 adsorbs the outflowing gas, and the sampling pump 13 adjusts the speed of the outflowing gas and discharges excess gas; the second sampling device group 9 includes an impact bottle 14 filled with ultrapure water and a sampling pump 13, the impact bottle 14 filled with ultrapure water adsorbs the outflowing gas, and the sampling pump 13 adjusts the speed of the outflowing gas and discharges excess gas;

[0035] The blank control reactor 5 is provided with a third interface 10 and a fourth interface 11;

[0036] The third interface 10 of the blank control reactor 5 is connected to the carrier gas inlet device 2, and the fourth interface 11 is connected to the carrier gas outflow device 4;

[0037] The carrier gas flow rate regulating device 3 is arranged between the carrier gas introduction device 2 and the first interface 6 and the third interface 10 to ensure that the amount of carrier gas introduced is greater than the flow rate required for the carrier gas outflow in the latter section.

[0038] The specific experiment includes the following steps:

[0039] Experimental preparation: Prepare clean nitrogen with a purity of 99.9995% in the carrier gas introduction device 2 at a carrier gas flow rate of 100 ml / min; Use ultrapure water to clean the material reactor 1 and the blank control reactor 5, ultrasonicate for 20 minutes, dry and age, and test the background value of the gas release device (material reactor 1 and blank control reactor 5);

[0040] Conditions for use of the carrier gas outflow device 4:

[0041] For organic sampling, use the first sampling device set 8, adsorption tube 12, sampling pump 13 with a flow rate of 100 mL / min and a sampling time of 10-45 min;

[0042] For inorganic sampling, the second sampling device group 9 is used, including the material reactor 1, 40 / 30 ml of ultrapure water absorption liquid, the impact bottle 14, the sampling pump 13, the sampling flow rate of 1.0 L / min, and the sampling time of 3.5 h.

[0043] Experimental sample processing:

[0044] Weigh a certain amount of the freshly opened sample and place it on a 5cmX5cm aluminum foil. After weighing, place the aluminum foil containing the sample at the bottom of the material reactor 1. After placing it, perform sampling of the inorganic and organic outgassing of the sample.

[0045] After sampling is completed, the samples are placed in a ventilated environment with constant temperature and humidity in the experimental field to dry. After being placed for a period of time, the inorganic and organic gas release of the samples are collected.

[0046] Data acquisition machine processing

[0047] Gas chromatograph / mass spectrometer and ion chromatograph were used for data acquisition and structure summary analysis.

[0048] The present application discloses a small material release gas measuring device, which adopts a material release reactor and sets a blank control reactor 5 through the setting of a material reactor 1, a carrier gas inlet device 2, a carrier gas flow rate regulating device 3, a carrier gas outflow device 4 and a blank control reactor 5. The device tests the changes in organic and inorganic concentrations of the released gas through the sampling technology of environmental gas and the analysis technology of GC-MS organic matter and IC inorganic matter, covering the immediate release stage after the material package is opened to the post-release stage after a certain period of time, and can comprehensively evaluate the influence of the ventilation effect of the material on the release characteristics; it can test the release of small, solid materials and the like, and can simulate the release of materials under normal ventilation conditions, reducing the interference of external conditions such as temperature and humidity on the detection structure, with smaller errors and more in line with engineering applications; the non-reactivity and high purity of the carrier gas will not interfere with or contaminate the materials that need to be detected for released gas.

[0049] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A small material outgassing measuring device, characterized by: It includes a material reactor, a carrier gas inlet device, a carrier gas flow rate regulating device, a carrier gas outflow device and a blank control reactor; The material reactor is provided with a first interface and a second interface; The first interface of the material reactor is connected to the carrier gas introduction device; The second interface is connected to a carrier gas outflow device; The carrier gas outflow device includes a first sampling device group and a second sampling device group; The blank control reactor is provided with a third interface and a fourth interface; The third interface of the blank control reactor is connected to the carrier gas inlet device, and the fourth interface is connected to the carrier gas outflow device; The carrier gas flow rate regulating device is arranged between the carrier gas introduction device and the first interface and the third interface.

2. A small material outgassing measuring device according to claim 1, characterized in that: The material reactor and the blank control reactor are both glass devices.

3. A small material outgassing measuring device according to claim 1, characterized in that: The carrier gas inlet device is loaded with clean nitrogen with a purity of 99.9995%.

4. The small material outgassing measuring device according to claim 1, characterized in that: The carrier gas flow rate regulating device is a float flowmeter.

5. The small material outgassing measuring device according to claim 1, characterized in that: The first sampling device group includes an adsorption tube and a sampling pump.

6. The small material outgassing measuring device according to claim 1, characterized in that: The second sampling device group includes an impact bottle filled with ultrapure water and a sampling pump.

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