Chinese medicine sulfide residual quantity measuring instrument

Abstract

The application relates to the technical field of sulfide measurement, and discloses a traditional Chinese medicine sulfide residual amount measuring instrument, which comprises a gas generation module, a filtering and purifying unit, a core detection module and a tail gas treatment module. The traditional Chinese medicine sulfide residual amount measuring instrument is characterized in that, through the synergistic effect of an ultrasonic transducer and a constant-temperature electric heating wire in the gas generation module, the acidolysis time is shortened, and the sulfide release rate is improved; through the step-by-step filtration of a three-stage purification structure PTFE hydrophobic membrane, a zeolite molecular sieve layer and a nano-silver-loaded activated carbon column in the filtering and purifying unit, the removal rate of interfering substances is improved, the downstream sensor is effectively protected, the electrochemical interference is inhibited to a certain range by using the spatial diagonal line layout of a working electrode and a reference electrode in the core detection module, the embedded algorithm of an AD conversion module is matched to realize ultrahigh-sensitivity detection, and finally the tail gas processor in the tail gas treatment module reduces the emission concentration to the standard state for emission.

Description

Technical Field

[0001] This application relates to the field of sulfide measurement technology, specifically to a sulfide residue measuring instrument for traditional Chinese medicine. Background Technology

[0002] The detection of sulfide residues in traditional Chinese medicine is an important step in ensuring its safety. Currently, the industry generally uses chemical analysis methods (such as iodometric titration and colorimetric methods) and instrumental analysis methods (such as gas chromatography and high performance liquid chromatography).

[0003] Chemical analysis is simple to operate but has low precision and is easily affected by interference, while instrumental analysis has high precision but the equipment is expensive, time-consuming and requires professional personnel to operate.

[0004] In recent years, with the increasing demand for internationalization of traditional Chinese medicine, pharmacopoeias of various countries have set increasingly stringent limits on sulfide residues, making it urgent to develop detection technologies that are both efficient and accurate. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a sulfide residue measuring instrument for traditional Chinese medicine, which possesses efficient and accurate detection technology and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a traditional Chinese medicine sulfide residue measuring instrument, comprising a gas generating module, a filtration and purification unit, a core detection module, and a tail gas treatment module. The gas generating module includes a sealed reaction vessel and a constant-temperature heating wire embedded in the inner wall of the sealed reaction vessel. A PID temperature control probe is installed on the inner bottom wall of the sealed reaction vessel, and an ultrasonic transducer is installed on the inner bottom wall of the sealed reaction vessel. A detachable gas supply pipe is connected to the top of the sealed reaction vessel.

[0007] The filtration and purification unit includes a filter chamber connected to the output end of the air supply pipe. The inner wall of the filter chamber is sequentially equipped with a PTFE hydrophobic membrane, a zeolite molecular sieve layer and a nano-silver activated carbon column from top to bottom. The bottom end of the filter chamber is connected to a lower air supply pipe.

[0008] The core detection module includes a microfluidic gas chamber connected to the bottom of the lower gas delivery pipe. A working electrode and a reference electrode are installed on the inner wall of the microfluidic gas chamber, arranged diagonally within the chamber. The outer surface of the working electrode is coated with an Au-PANI / graphene composite sensitive membrane. A data processing terminal is installed on the outer surface of the microfluidic gas chamber. The data processing terminal contains a signal amplification circuit and an AD conversion module. The AD conversion module has an embedded algorithm. The bottom of the microfluidic gas chamber is connected to an exhaust pipe.

[0009] Through the above scheme, the acid hydrolysis time is shortened and the sulfide release rate is improved by the synergistic effect of the ultrasonic transducer and the constant temperature heating wire in the gas generation module. The three-stage purification structure of PTFE hydrophobic membrane, zeolite molecular sieve layer and nano-silver-loaded activated carbon column in the filtration and purification unit improves the removal rate of interference and effectively protects the downstream sensor. By utilizing the diagonal spatial layout of the working electrode and reference electrode in the core detection module, electrochemical interference is suppressed to a certain range. Combined with the embedded algorithm of the AD conversion module, ultra-high sensitivity detection is achieved.

[0010] Furthermore, a first solenoid valve is installed on the gas supply pipe section, a controller is fixedly connected to the outer surface of the sealed reaction vessel, and the constant temperature heating wire, PID temperature control probe, ultrasonic transducer and the first solenoid valve are all electrically connected to the controller. A traditional Chinese medicine input pipe and an acidifying agent input pipe are installed at the top of the sealed reaction vessel.

[0011] The above scheme enables fully automated closed-loop control of the acidolysis process, controlling temperature fluctuations and avoiding human error.

[0012] Furthermore, two first connecting columns are fixedly connected to the outer surface of the filter chamber, and one end of each of the two first connecting columns is fixedly connected to the outer surface of the sealed reaction vessel.

[0013] The above solution enhances the mechanical stability between the filter chamber and the sealed reactor, improves vibration resistance, and makes it more practical.

[0014] Furthermore, both the working electrode and the reference electrode are electrically connected to the signal amplification circuit, and both the signal amplification circuit and the AD conversion module are electrically connected to the data processing terminal.

[0015] The above scheme defines the relationship between the working electrode, reference electrode, data processing terminal, signal amplification circuit, and AD conversion module, enabling more convenient detection of sulfide residues in traditional Chinese medicine.

[0016] Furthermore, a one-way valve is installed on the exhaust pipe section.

[0017] The above scheme effectively prevents external gas from entering the microfluidic chamber from the bottom by using a one-way valve, thus improving the accuracy of detection.

[0018] Furthermore, a second connecting post is fixedly connected to the outer surface of the microfluidic gas chamber, and one end of the second connecting post is fixedly connected to the outer surface of the sealed reaction vessel.

[0019] The above scheme improves the stability of the microfluidic gas chamber by using a second connecting column, making it easier to use.

[0020] Furthermore, the exhaust gas treatment module includes an exhaust gas processor connected to the bottom of the exhaust pipe, and a second solenoid valve is installed at the output end of the exhaust gas processor. The second solenoid valve is electrically connected to the controller.

[0021] The above solution utilizes an exhaust gas treatment module to purify the exhaust gas emitted from the exhaust pipe, reducing environmental damage.

[0022] Furthermore, four support columns are fixedly connected to the bottom surface of the sealed reactor, and an anti-slip pad is provided below the sealed reactor. The bottom ends of the four support columns are all fixedly connected to the upper surface of the anti-slip pad.

[0023] The above-mentioned solution, with its supporting columns and anti-slip pads, ensures the overall stable operation of the equipment.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0025] This instrument for measuring the residual sulfide content in traditional Chinese medicine utilizes the synergistic effect of an ultrasonic transducer and a constant-temperature heating wire in the gas generation module to shorten the acid hydrolysis time and improve the sulfide release rate. The three-stage purification structure in the filtration unit—PTFE hydrophobic membrane, zeolite molecular sieve layer, and nano-silver-loaded activated carbon column—improves the removal rate of interfering substances and effectively protects downstream sensors. The diagonal spatial arrangement of the working electrode and reference electrode in the core detection module suppresses electrochemical interference to a certain range. Combined with the embedded algorithm in the AD conversion module, it achieves ultra-high sensitivity detection. Finally, the exhaust gas processor in the exhaust gas treatment module reduces the emission concentration to a compliant level before emission. The optimized center of gravity design, consisting of support columns and anti-slip pads, ensures stable operation. Overall, the instrument combines high efficiency, accuracy, and environmental safety, effectively solving the problems of low accuracy, expensive equipment, and complex operation associated with traditional detection methods. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0027] Figure 2 This is a top view of the overall structure of this application.

[0028] Figure 3 This is a schematic diagram of the first partial sectional plan view of the structure of this application;

[0029] Figure 4 This is a schematic diagram of the second partial sectional plan view of the structure of this application;

[0030] Figure 5 This is a schematic diagram of the third partial sectional plan view of the structure of this application;

[0031] Figure 6 This is a schematic diagram of the internal structure of the data processing terminal in this application.

[0032] In the picture:

[0033] 1. Gas Generation Module; 101. Sealed Reactor; 102. Constant Temperature Heating Wire; 103. PID Temperature Control Probe; 104. Ultrasonic Transducer; 105. Gas Supply Pipe; 106. First Solenoid Valve; 107. Controller; 108. Traditional Chinese Medicine Injection Pipe; 109. Acidifying Agent Injection Pipe; 2. Filtration and Purification Unit; 201. Filter Chamber; 202. PTFE Hydrophobic Membrane; 203. Zeolite Molecular Sieve Layer; 204. Nano-Silver Loaded Activated Carbon Column; 20 5. Lower gas delivery pipe; 206. First connecting post; 3. Core detection module; 301. Microfluidic gas chamber; 302. Working electrode; 303. Reference electrode; 304. Data processing terminal; 305. Signal amplification circuit; 306. AD conversion module; 307. Exhaust pipe; 308. One-way valve; 309. Second connecting post; 4. Exhaust gas treatment module; 401. Exhaust gas processor; 402. Second solenoid valve; 5. Support post; 6. Anti-slip pad. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Please see Figure 1 , Figure 2 and Figure 3 The traditional Chinese medicine sulfide residue measuring instrument in this embodiment includes a gas generating module 1, a filtration and purification unit 2, a core detection module 3, and an exhaust gas treatment module 4. The gas generating module 1 includes a sealed reaction vessel 101 and a constant-temperature heating wire 102 embedded in the inner wall of the sealed reaction vessel 101. A PID temperature control probe 103 is installed on the inner bottom wall of the sealed reaction vessel 101, and an ultrasonic transducer 104 is installed on the inner bottom wall of the sealed reaction vessel 101. A detachable gas supply pipe 105 is connected to the top of the sealed reaction vessel 101. A first solenoid valve 106 is installed on the gas supply pipe 105. A controller 107 is fixedly connected to the outer surface of the sealed reaction vessel 101. The constant temperature heating wire 102, PID temperature control probe 103, ultrasonic transducer 104 and the first solenoid valve 106 are all electrically connected to the controller 107. A traditional Chinese medicine input pipe 108 and an acidifying agent input pipe 109 are installed at the top of the sealed reaction vessel 101. Through the above scheme, the acid hydrolysis process can be fully automatically closed-loop controlled, temperature fluctuations can be controlled, and human operation errors can be avoided.

[0036] Please see Figure 3 , Figure 4 and Figure 5 The filtration and purification unit 2 includes a filter chamber 201 connected to the output end of the air supply pipe 105. The inner wall of the filter chamber 201 is sequentially equipped with a PTFE hydrophobic membrane 202, a zeolite molecular sieve layer 203, and a nano-silver-loaded activated carbon column 204 from top to bottom. The bottom end of the filter chamber 201 is connected to a lower air supply pipe 205. Two first connecting columns 206 are fixedly connected to the outer surface of the filter chamber 201. One end of each of the two first connecting columns 206 is fixedly connected to the outer surface of the sealed reaction vessel 101, which can enhance the mechanical stability between the filter chamber 201 and the sealed reaction vessel 101, improve the vibration resistance, and make it more practical.

[0037] Please see Figure 3 , Figure 5 and Figure 6 The core detection module 3 includes a microfluidic gas chamber 301 connected to the bottom of the lower gas inlet pipe 205. A working electrode 302 and a reference electrode 303 are installed on the inner wall of the microfluidic gas chamber 301, arranged diagonally within the chamber. The outer surface of the working electrode 302 is coated with an Au-PANI / graphene composite sensitive membrane. A data processing terminal 304 is installed on the outer surface of the microfluidic gas chamber 301. The data processing terminal 304 contains a signal amplification circuit 305 and an AD conversion module 306, which includes an embedded algorithm. The bottom of the microfluidic gas chamber 301 is connected to an exhaust pipe 307. Both the working electrode 302 and the reference electrode 303 are electrically connected to the signal amplification circuit 305. Both the AD conversion module 302 and the AD conversion module 306 are electrically connected to the data processing terminal 304, defining the relationship between the working electrode 302, the reference electrode 303, the data processing terminal 304, the signal amplification circuit 305, and the AD conversion module 306. This enables more convenient detection of sulfide residues in traditional Chinese medicine. A one-way valve 308 is installed on the tail gas pipe 307. The one-way valve 308 effectively prevents external gas from entering the microfluidic gas chamber 301 from the bottom, improving the accuracy of detection. A second connecting post 309 is fixedly connected to the outer surface of the microfluidic gas chamber 301. One end of the second connecting post 309 is fixedly connected to the outer surface of the sealed reaction vessel 101. The second connecting post 309 improves the stability of the microfluidic gas chamber 301 and facilitates its use.

[0038] Please see Figure 1 , Figure 2 and Figure 5The exhaust gas treatment module 4 includes an exhaust gas processor 401 connected to the bottom of the exhaust gas pipe 307. A second solenoid valve 402 is installed at the output end of the exhaust gas processor 401. The second solenoid valve 402 is electrically connected to the controller 107. The exhaust gas treatment module 4 can purify the exhaust gas discharged from the exhaust gas pipe 307, reducing the damage to the environment. Four support columns 5 are fixedly connected to the bottom surface of the sealed reaction vessel 101. An anti-slip pad 6 is provided below the sealed reaction vessel 101. The bottom ends of the four support columns 5 are fixedly connected to the upper surface of the anti-slip pad 6. The support columns 5 and the anti-slip pad 6 can ensure the overall stable operation of the equipment.

[0039] In this embodiment, a stable and efficient sulfide gas generation environment can be constructed by using a constant-temperature heating wire 102 on the inner wall of the sealed reaction vessel 101, a PID temperature control probe 103, and an ultrasonic transducer 104. This, combined with the first solenoid valve 106 and the controller 107, achieves fully automatic closed-loop control of the acidolysis process, reducing human error. The PTFE hydrophobic membrane 202, zeolite molecular sieve layer 203, and nano-silver-loaded activated carbon column 204 within the filter chamber 201 form a multi-stage filtration system, effectively removing gaseous impurities and improving detection anti-interference capabilities. The microfluidic gas chamber 301 is spatially diagonally distributed and modified with Au-PANI / The working electrode 302 and reference electrode 303 of the graphene composite sensitive membrane, combined with the signal amplification circuit 305, AD conversion module 306 and embedded algorithm in the data processing terminal 304, significantly improve detection sensitivity and data reliability. The exhaust gas processor 401 and the second solenoid valve 402 realize exhaust gas purification treatment. The whole system has high efficiency, accuracy and environmental safety, effectively solving the problems of low accuracy, expensive equipment and complicated operation of traditional detection methods.

[0040] The working principle of the above embodiment is as follows: First, the Chinese medicine sample to be tested and the acidifier are added to the sealed reaction vessel 101 through the Chinese medicine input tube 108 and the acidifier input tube 109. The controller 107 controls the constant temperature heating wire 102 and the PID temperature control probe 103 to maintain the reaction temperature in the optimal range. At the same time, the ultrasonic transducer 104 is activated to promote the full reaction of the sample and the acidifier to generate sulfide gas. The generated gas is controlled by the first solenoid valve 106 and enters the filtration and purification unit 2 through the gas supply pipe 105. It passes through the PTFE hydrophobic membrane 202 to remove moisture, the zeolite molecular sieve layer 203 to adsorb volatile impurities, and the nano-silver-loaded activated carbon column 204 to purify harmful components, resulting in pure sulfide gas. The pure gas enters the microfluidic gas chamber 301 of the core detection module 3 through the lower gas supply pipe 205 and undergoes an electrochemical reaction with the Au-PANI / graphene composite sensitive membrane on the surface of the working electrode 302 and the reference electrode 303. The generated weak electrical signal is amplified by the signal amplification circuit 305 and the AD After processing by the AD conversion module 306, the data is transmitted to the data processing terminal 304. Noise filtering and feature extraction are performed through embedded algorithms to obtain the final sulfide residue detection result. The working electrode 302 and the reference electrode 303 are diagonally distributed, which can solve the problem of electrode interference in the microfluidic gas chamber 301 and optimize the actual measurement results. The detected exhaust gas flows into the exhaust gas treatment module 4 through the one-way valve 308 of the exhaust gas pipe 307. After being purified by the exhaust gas processor 401, it is discharged through the second solenoid valve 402. Throughout the process, the support column 5 and the anti-slip pad 6 ensure the stable operation of the equipment. Under the coordination of the controller 107, each module realizes automated detection, which combines high efficiency, accuracy and economy, and meets the stringent requirements of sulfide residue detection in traditional Chinese medicine.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A traditional Chinese medicine sulfide residual quantity measuring instrument, comprising a gas generation module (1), a filtration and purification unit (2), a core detection module (3) and a tail gas treatment module (4), characterized in that: The gas generating module (1) includes a sealed reactor (101) and a constant temperature heating wire (102) embedded in the inner wall of the sealed reactor (101). A PID temperature control probe (103) is installed on the inner bottom wall of the sealed reactor (101). An ultrasonic transducer (104) is installed on the inner bottom wall of the sealed reactor (101). A detachable gas supply pipe (105) is connected to the top of the sealed reactor (101). The filtration and purification unit (2) includes a filter chamber (201) connected to the output end of the air supply pipe (105). The inner wall of the filter chamber (201) is sequentially equipped with a PTFE hydrophobic membrane (202), a zeolite molecular sieve layer (203), and a nano-silver-loaded activated carbon column (204) from top to bottom. The bottom end of the filter chamber (201) is connected to a lower air supply pipe (205). The core detection module (3) includes a microfluidic gas chamber (301) connected to the bottom of the lower gas delivery pipe (205). The inner wall of the microfluidic gas chamber (301) is equipped with a working electrode (302) and a reference electrode (303). The working electrode (302) and the reference electrode (303) are arranged diagonally in space inside the microfluidic gas chamber (301). The outer surface of the working electrode (302) is modified with an Au-PANI / graphene composite sensitive film. The outer surface of the microfluidic gas chamber (301) is equipped with a data processing terminal (304). The data processing terminal (304) is equipped with a signal amplification circuit (305) and an AD conversion module (306). The AD conversion module (306) is equipped with an embedded algorithm. The bottom of the microfluidic gas chamber (301) is connected to a tail gas pipe (307).

2. The traditional Chinese medicine sulfide residue measuring instrument according to claim 1, characterized in that: A first solenoid valve (106) is installed on the section of the gas supply pipe (105). A controller (107) is fixedly connected to the outer surface of the sealed reaction vessel (101). The constant temperature heating wire (102), PID temperature control probe (103), ultrasonic transducer (104) and the first solenoid valve (106) are all electrically connected to the controller (107). A traditional Chinese medicine input pipe (108) and an acidifier input pipe (109) are installed at the top of the sealed reaction vessel (101).

3. The traditional Chinese medicine sulfide residue measuring instrument according to claim 1, characterized in that: Two first connecting columns (206) are fixedly connected to the outer surface of the filter chamber (201), and one end of each of the two first connecting columns (206) is fixedly connected to the outer surface of the sealed reactor (101).

4. The traditional Chinese medicine sulfide residue measuring instrument according to claim 1, characterized in that: The working electrode (302) and the reference electrode (303) are both electrically connected to the signal amplification circuit (305), and the signal amplification circuit (305) and the AD conversion module (306) are both electrically connected to the data processing terminal (304).

5. The traditional Chinese medicine sulfide residue measuring instrument according to claim 1, characterized in that: A one-way valve (308) is installed on the section of the exhaust pipe (307).

6. The traditional Chinese medicine sulfide residue measuring instrument according to claim 1, characterized in that: The outer surface of the microfluidic gas chamber (301) is fixedly connected to a second connecting post (309), one end of which is fixedly connected to the outer surface of the sealed reaction vessel (101).

7. The traditional Chinese medicine sulfide residue measuring instrument according to claim 2, characterized in that: The exhaust gas treatment module (4) includes an exhaust gas processor (401) connected to the bottom end of the exhaust gas pipe (307). The output end of the exhaust gas processor (401) is equipped with a second solenoid valve (402), which is electrically connected to the controller (107).

8. The traditional Chinese medicine sulfide residue measuring instrument according to claim 1, characterized in that: The bottom surface of the sealed reactor (101) is fixedly connected to four support columns (5), and an anti-slip pad (6) is provided below the sealed reactor (101). The bottom ends of the four support columns (5) are all fixedly connected to the upper surface of the anti-slip pad (6).

Images