Device for simply, conveniently and accurately measuring hydrogen sulfide
By designing a device that includes constant voltage liquid functions and nitrogen control control, the problem of unstable and inaccurate detection in the existing technologies due to pressure differences and gas spilling. sex.
Patent Information
- Application Number
- CN202420187287.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-25
AI Technical Summary
In the prior art, when detecting the hydrogen sulfide content in oral liquid samples, the hydrochloric acid solution cannot drop normally due to the difference in pressure inside and outside the device, and the hydrogen sulfide gas is easily dissipated during the gas extraction process, affecting the detection results.
Design a device including tri -neck bottle, constant voltage liquid funnel, air pipe, flowmeter, nitrogen pipe and tracheal pipe, to ensure the stable drip of the hydrochloric acid solution through constant pressure, The hydrogen sulfide gases determine the hydrogen sulfide content by detecting the absorbance by ultraviolet method after absorption of the absorption solution.
Through the stable control of the constant voltage liquid liquid funnel and nitrogen flow, the stability and accuracy of the detection process are ensured, the dispersion of hydrogen sulfide gas is avoided, and the reliability of the detection results is improved.
Smart Images
Figure CN222419993U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of oral liquid detection, in particular to a device for simply and accurately determining hydrogen sulfide. Background Art
[0002] At present, it is necessary to accurately detect the hydrogen sulfide content in the oral liquid sample during the production process of some oral liquids. The current detection method is to take a specified amount of oral liquid sample, add water, and then drip hydrochloric acid solution in a sealed environment to release hydrogen sulfide gas. At the same time, the generated hydrogen sulfide gas is taken away by the introduction of nitrogen gas flow and absorbed by the absorption liquid. Finally, during the detection process, there may be a difference in pressure inside and outside the device, which may cause the hydrochloric acid solution in the separatory funnel to fail to drip normally, affecting the detection. In addition, after the reaction is completed, the gas is extracted for absorption, and the absorption process is prone to cause hydrogen sulfide gas to escape into the air, affecting the detection results.
[0003] The device has good sealing performance, and the gas in the device can circulate. Furthermore, the device is also equipped with a gas flow detector to control the flow rate of gas entering, so as to make the detection result more accurate. Utility Model Content
[0004] The utility model provides a device for simply and accurately measuring hydrogen sulfide, which is used to solve the defects in the prior art.
[0005] The utility model is realized through the following technical solutions:
[0006] A device for simply and accurately measuring hydrogen sulfide comprises a three-necked flask, wherein a middle interface of the three-necked flask is connected to a constant pressure separating funnel, a side interface of the three-necked flask is sealed and connected to one end of an air inlet pipe, the other end of the air inlet pipe is connected to an outlet of a flow meter, the inlet of the flow meter is connected to a nitrogen pipe, a side interface of the three-necked flask is sealed and connected to one end of an air outlet pipe, the other end of the air outlet pipe is located in an absorption bottle, and an absorption liquid is placed in the absorption bottle.
[0007] In the device for simply and accurately determining hydrogen sulfide as described above, the lower part of the three-necked flask is placed on a flask ring, and the flask ring is arranged on an iron stand.
[0008] In the device for simply and accurately determining hydrogen sulfide as described above, the middle part of the constant pressure separating funnel is fixed by a test tube clamp, and the test tube clamp is arranged on an iron frame.
[0009] In the device for simply and accurately measuring hydrogen sulfide as described above, the other end of the gas outlet pipe is located at the bottom of the absorption bottle.
[0010] The utility model has the advantages that: the utility model can ensure the stable dripping of the hydrochloric acid solution through the constant pressure separating funnel, thereby ensuring the stable detection; at the same time, the generated hydrogen sulfide gas is stably and continuously taken away by the nitrogen flow, and then the hydrogen sulfide gas is absorbed by the absorption liquid in the absorption bottle, and the absorbance is detected by ultraviolet method to judge the content of hydrogen sulfide; at the same time, the nitrogen flow rate can be known in real time through the flow meter, thereby ensuring the stability of the nitrogen flow, ensuring that the hydrogen sulfide is completely absorbed, and ensuring the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 It is a schematic diagram of the structure of the utility model.
[0013] Figure numerals: 1. three-necked flask; 2. constant pressure separating funnel; 3. air inlet pipe; 4. flow meter; 5. nitrogen pipe; 6. air outlet pipe; 7. absorption bottle; 8. flask ring; 9. iron stand; 10. test tube clamp. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0015] A device for simply and accurately measuring hydrogen sulfide comprises a three-necked flask 1, wherein a middle interface of the three-necked flask 1 is connected to a constant pressure separating funnel 2, a side interface of the three-necked flask 1 is sealed and connected to one end of an air inlet pipe 3, the other end of the air inlet pipe 3 is connected to an outlet of a flow meter 4, the inlet of the flow meter 4 is connected to a nitrogen pipe 5, a side interface of the three-necked flask 1 is sealed and connected to one end of an air outlet pipe 6, the other end of the air outlet pipe 6 is located in an absorption bottle 7, an absorption liquid is placed in the absorption bottle 7, and the absorption liquid is an alkaline solution.
[0016] Specifically, the lower part of the three-necked flask 1 described in this embodiment is placed on a flask ring 8, and the flask ring 8 is arranged on an iron frame 9.
[0017] Furthermore, the middle part of the constant pressure separating funnel 2 described in this embodiment is fixed by a test tube clamp 10, and the test tube clamp 10 is arranged on the iron frame 9.
[0018] Furthermore, the other end of the air outlet pipe 6 described in this embodiment is located at the bottom of the absorption bottle 7.
[0019] When the utility model is used, an oral liquid sample is placed in a three-necked flask 1, and a proper amount of water is added. Then, a constant pressure separating funnel 2, an air inlet pipe 3 and an air outlet pipe 6 filled with a hydrochloric acid solution are connected, and a valve of a nitrogen bottle connected to a nitrogen pipe 5 is opened. The stability of the nitrogen flow is ensured by a flow meter 4, and a stable nitrogen flow is input. At the same time, a hydrochloric acid solution is added dropwise to make the oral liquid sample release hydrogen sulfide gas. Excessive addition of hydrochloric acid makes the hydrogen sulfide gas completely released and absorbed by the alkaline solution in the absorption bottle 7.
[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A device for simply and accurately measuring hydrogen sulfide, characterized in that: The invention comprises a three-necked flask (1), wherein a middle interface of the three-necked flask (1) is connected to a constant pressure separating funnel (2), a side interface of the constant pressure separating funnel (2) and the three-necked flask (1) is sealed and connected to one end of an air inlet pipe (3), the other end of the air inlet pipe (3) is connected to an outlet of a flow meter (4), the inlet of the flow meter (4) is connected to a nitrogen pipe (5), a side interface of the three-necked flask (1) is sealed and connected to one end of an air outlet pipe (6), the other end of the air outlet pipe (6) is located in an absorption bottle (7), and an absorption liquid is placed in the absorption bottle (7).
2. A device for simply and accurately measuring hydrogen sulfide according to claim 1, characterized in that: The lower part of the three-necked flask (1) is placed on a flask ring (8), and the flask ring (8) is arranged on an iron frame (9).
3. A device for simply and accurately measuring hydrogen sulfide according to claim 1, characterized in that: The middle part of the constant pressure separating funnel (2) is fixed by a test tube clamp (10), and the test tube clamp (10) is arranged on the iron frame (9).
4. A device for simply and accurately measuring hydrogen sulfide according to claim 1, characterized in that: The other end of the air outlet pipe (6) is located at the bottom of the absorption bottle (7).