Electrolyte panchromatic on-line analyzer
By designing an online electrolyte color analyzer, which employs multiple sealing and precise optical path structures, the problem of inaccurate electrolyte color measurement is solved, achieving efficient and stable electrolyte detection, suitable for lithium-ion battery production.
Patent Information
- Application Number
- CN202522748534.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-12-25
AI Technical Summary
The existing technology lacks a full-color online analyzer that can determine the color of the electrolyte in a timely manner, which makes it impossible to effectively detect the problem of excessive impurities in the electrolyte, thus affecting the performance and safety of lithium-ion batteries.
An online total color analyzer for electrolytes was designed, employing a multi-layered sealing structure and a precise optical path design, including a transmitter module and a receiver module. It uses sapphire lenses and multi-layered sealing gaskets to ensure that the optical components are not corroded and to improve measurement accuracy.
It enables precise measurement of electrolyte color, reduces optical path deviation, improves measurement accuracy and repeatability, is suitable for corrosive liquids and high-pressure environments, and reduces maintenance frequency and failure risk.
Smart Images
Figure CN223827557U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrolyte colorimetry detection technology, specifically to an online electrolyte colorimetry analyzer. Background Technology
[0002] With social development, the concept of environmental protection and energy conservation is increasingly being promoted by governments around the world. The electrification of automobiles has gradually become the direction of market development. Electrolyte is one of the four main components of lithium-ion batteries. It is the medium for the migration of lithium ions between the positive and negative electrodes and has an important impact on lithium battery capacity, operating temperature, cycle efficiency and safety.
[0003] The color of lithium battery electrolyte refers to its color and transparency, reflecting its purity and impurity content. Electrolyte color significantly impacts its electrochemical performance and safety. High-purity electrolytes should be colorless or light yellow (e.g., LiPF6 system). Excessive color (measured using the platinum-cobalt colorimetric method) indicates insufficient solvent purification or moisture absorption during storage, potentially introducing harmful components like water and affecting lithium-ion migration efficiency. Color changes in the electrolyte may be due to impurities; excessive levels of bismuth, zinc, or tellurium can cause the electrolyte to darken or become cloudy. These impurities affect lithium-ion transport efficiency, thus impacting battery charge / discharge performance and cycle life, and also affecting battery safety. Therefore, it is necessary to develop a full-color online analyzer capable of timely determining electrolyte color, effectively identifying problems, and assisting in diagnosing issues in the production process. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an online full-color analyzer for electrolytes.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] An online electrolyte color analyzer includes a control box and a sensing assembly connected to the control box via wires. The control box includes an explosion-proof enclosure, a touch screen installed at one end of the explosion-proof enclosure, and a PLC controller, a power switch, and an air switch installed at the other end of the explosion-proof enclosure. The sensing assembly includes a flow cell for receiving an external detection liquid, a first junction box and a second junction box fixedly installed at both ends of the flow cell. A transmitting module is installed inside the first junction box, and a receiving module is installed inside the second junction box. A detection liquid inlet is provided below the flow cell, and a detection liquid outlet is provided above the flow cell. The first junction box includes a junction box body, and the junction box body is fixedly installed on a flange at the end of the flow cell closer to the detection liquid inlet, and is embedded in the flange facing... The system comprises: a first sealing gasket on one end face of the flow cell; a hollow rubber stopper for insertion into the flow cell; a first and second O-ring fitted inside the rubber stopper and assembled with a concave ring; a PTFE gasket fitted inside the rubber stopper and blocked by a stepped surface; a cylindrical mirror body inserted inside the rubber stopper and sealed with the first O-ring, the second O-ring, and the PTFE gasket to prevent leakage; a corrugated gasket fitted inside the rubber stopper and abutting against the cylindrical mirror body; a stainless steel ring fitted inside the rubber stopper and abutting against the corrugated gasket; a rubber stopper annular pressure plate fitted inside the rubber stopper and used to press the stainless steel ring to fix the corrugated gasket; and a second sealing gasket located at the end of the rubber stopper facing the flow cell and cooperating with the rubber stopper in assembly with the flow cell.
[0007] Preferably, the cylindrical mirror body is made of sapphire lens.
[0008] Preferably, the crest gasket is a wavy gasket with through holes.
[0009] Preferably, the stainless steel ring has a through hole in its center, and the rubber plug annular pressure plate has a hole in its center.
[0010] Preferably, the transmitting module is fixed to the end face of the rubber plug annular pressure plate inside the first junction box, facing away from the flow pool, and is connected to the control box via a wire.
[0011] Furthermore, the second junction box is fixed at the end of the flow cell closer to the outlet of the detection liquid. Except for the receiving module fixed on the end face of the rubber stopper annular pressure plate facing away from the flow cell, the other components of the second junction box are the same as those of the first junction box.
[0012] Preferably, the transmitting module includes a tubular transmitting module housing, a cylindrical transmitting module hollow base embedded in the inner hole of the transmitting module housing, a first transmitting module wiring board fixed on one end face of the transmitting module hollow base, a second transmitting module wiring board fixedly disposed in the inner hole of the transmitting module hollow base near the first transmitting module wiring board, a photodiode fixed to the center of the end face of the second transmitting module wiring board facing away from the first transmitting module wiring board, a beam splitter fixedly mounted on the end face of the photodiode facing away from the second transmitting module wiring board, a transmitting module convex lens fixed in the inner hole of the other end of the transmitting module hollow base, and a transmitting module silicon photovoltaic cell embedded and fixed in the inner hole sidewall of the transmitting module hollow base opposite to the beam splitter and the photodiode. The center lines of the photodiode, the beam splitter, and the transmitting module convex lens are on the same straight line.
[0013] Furthermore, the hollow base of the launch module is tightly fitted to the launch module housing; the hollow base of the launch module is provided with a first through groove and a second through groove with progressively smaller thicknesses along the central axis of the hollow base of the launch module, starting from one end face and extending along its length. The center faces of the first through groove and the second through groove are on the same plane. Inside the hollow base of the launch module, there are a first stepped hole, a second stepped hole, and a third stepped hole with progressively smaller inner diameters from the outer end face of the first through groove to the other end of the hollow base of the launch module. The first stepped hole and the first through groove have the same length. An arc-shaped hole is opened at the center of the other end face of the hollow base of the launch module. The first wiring board of the launch module has the same diameter as the outer circle of the hollow base of the launch module, and the first wiring board of the launch module... A wiring board is fixed to the outer end face of the first through slot of the transmitter module's hollow base. A transmitter terminal is fixed to the outer side of the first wiring board of the transmitter module. A second wiring board of the transmitter module is fixed to the stepped surface where the first and second stepped holes intersect. The photodiode is soldered to the second wiring board of the transmitter module. The convex lens of the transmitter module is embedded and fixed in the arc-shaped hole at the center of the other end face of the hollow base of the transmitter module, and one side of the plane of the convex lens of the transmitter module is flush with the outer end face of that end of the hollow base of the transmitter module. The silicon photovoltaic cell of the transmitter module is connected to the second wiring board of the transmitter module through wires. The second wiring board of the transmitter module is connected to the first wiring board of the transmitter module, the transmitter terminal, and the control box in sequence through several wires.
[0014] Preferably, the receiving module includes a tubular receiving module housing, a cylindrical receiving module hollow base embedded in the inner hole of the receiving module housing, a first receiving module wiring board fixed on one end face of the receiving module hollow base, a second receiving module wiring board fixedly disposed in the inner hole of the receiving module hollow base near the first receiving module wiring board, a receiving module silicon photovoltaic cell fixedly installed at the center of the side end face of the second receiving module wiring board facing away from the first receiving module wiring board, and a receiving module convex lens fixedly installed at the center of the inner part of the receiving module hollow base at the end farther from the first receiving module wiring board, the center line of the receiving module convex lens and the center line of the receiving module silicon photovoltaic cell being on the same straight line.
[0015] Furthermore, the receiving module housing and the receiving module hollow base are tightly fitted together; one end of the receiving module hollow base is provided with a third through groove along its length with the central axis of the receiving module hollow base as the center line; the inside of the receiving module hollow base is provided with a fourth step hole, a fifth step hole, and a sixth step hole whose diameters decrease sequentially from the outer end face of the end with the third through groove to the inner end face of the other end. The length of the third through groove is the same as the length of the fourth step hole. An arc-shaped hole is opened at the center of the end face of the other end of the receiving module hollow base. The outer diameter of the receiving module first wiring board is the same as that of the receiving module hollow base, and the receiving module first wiring board is fixed to the receiving module hollow base by screws. On the outer end face of the base with the third through slot, a receiving terminal block is fixed at the center of the outer end face of the first wiring board of the receiving module. The second wiring board of the receiving module is fixed on the step surface where the fourth and fifth stepped holes intersect. The silicon photovoltaic cell of the receiving module is welded and fixed to the center of the end face of the second wiring board of the receiving module facing away from the first wiring board of the receiving module. The convex lens of the receiving module is embedded and fixed in the arc-shaped hole at the center of the other end face of the hollow base of the receiving module, and the flat side of the convex lens of the receiving module is flush with the outer end face of the hollow base of the receiving module at that end. The silicon photovoltaic cell of the receiving module welded to the second wiring board of the receiving module is connected to the first wiring board of the receiving module, the receiving terminal block and the control box in sequence through wires.
[0016] Compared with the prior art, the advantages of this utility model are as follows:
[0017] (1) Multiple sealing is achieved by using a first sealing gasket, a first O-ring, a second O-ring, a PTFE gasket, and a second sealing gasket, which can effectively prevent the detection liquid from leaking from the flow cell into the junction box, avoiding corrosion of optical components or short circuits. The cylindrical lens body is sealed inside the rubber stopper by O-rings and PTFE gaskets, which further enhances the anti-seepage performance and ensures that the analyzer operates stably in long-term online detection. It is especially suitable for corrosive liquids or high-pressure environments.
[0018] (2) Through the structural design of the hollow base of the transmitting module in the transmitting module and the through slot, stepped hole, arc hole, etc. of the hollow base of the receiving module in the receiving module, the photodiode, beam splitter and convex lens of the transmitting module in the transmitting module can be precisely fixed on the same straight line, and the silicon photodiode and convex lens of the receiving module in the receiving module can be precisely fixed on the same straight line. This can reduce optical path deviation during operation, improve the accuracy and repeatability of color or spectrum measurement, and the beam splitter and silicon photodiode in the transmitting module allow for multi-wavelength analysis to achieve "full color" measurement. The structure is simple and compact, easy to disassemble and maintain, and improves efficiency.
[0019] (3) The combination of wave crest gasket, stainless steel ring plate, rubber stopper ring pressure plate and PTFE gasket ensures the stable fixation of the cylindrical mirror body, protects the cylindrical mirror body from damage, reduces the impact of vibration or temperature change on the optical system, improves the impact resistance and improves the accuracy of detection. Attached Figure Description
[0020] Figure 1 This is a structural diagram of an online electrolyte color analyzer according to the present invention;
[0021] Figure 2 for Figure 1 Front view of the central control box;
[0022] Figure 3 for Figure 1 Rear view of the central control box;
[0023] Figure 4 for Figure 1 Exploded view of the sensor component;
[0024] Figure 5 for Figure 4 Cross-sectional view of the mating parts of the middle rubber plug;
[0025] Figure 6 for Figure 4 A cross-sectional view of the transmission module;
[0026] Figure 7 for Figure 4 Exploded view of the transmission module;
[0027] Figure 8 for Figure 4 A cross-sectional view of the receiving module;
[0028] Figure 9 for Figure 4 An exploded view of the receiving module. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention. Example
[0030] like Figure 1-9 As shown, an online electrolyte color analyzer includes a control box 1 and a sensing component 2 connected to the control box 1 via wires.
[0031] The control box 1 includes an explosion-proof enclosure 11, a touch screen 12 installed at one end of the explosion-proof enclosure 11, and a PLC controller 13, a power switch 14, and an air switch 15 installed at the other end of the explosion-proof enclosure 11.
[0032] The sensing component 2 includes a flow cell 21 for connecting an external detection liquid, a first junction box 22 and a second junction box 24 fixedly installed at both ends of the flow cell 21, a transmitting module 23 installed inside the first junction box 22, and a receiving module 25 installed inside the second junction box 24.
[0033] The flow cell 21 has a detection liquid inlet 2101 at the bottom and a detection liquid outlet 2102 at the top.
[0034] The first junction box 22 includes a junction box body 2201, a flange 2202 fixedly installed on the end of the flow cell 21 closer to the detection liquid inlet 2101, a first sealing gasket 2203 fitted on the end face of the flange 2202 facing the flow cell 21, a hollow rubber stopper 2204 for inserting into the flow cell 21, a first O-ring 2205 and a second O-ring 2206 fitted inside the rubber stopper 2204 and assembled by a concave ring, a PTFE gasket 2207 fitted inside the rubber stopper 2204 and blocked by a stepped surface, and a gasket 2207 passing through the rubber stopper 2204 and blocked by the first O-ring 2205. The cylindrical mirror body 2208, which is sealed against leakage by the O-ring 2205, the second O-ring 2206, and the PTFE gasket 2207, is fitted inside the rubber stopper 2204 and abuts against the cylindrical mirror body 2208. A stainless steel ring 2210 is fitted inside the rubber stopper 2204 and abuts against the corrugated gasket 2209. A rubber stopper annular pressure plate 2211 is fitted inside the rubber stopper 2204 and is used to press the stainless steel ring 2210 to fix the corrugated gasket 2209. A second sealing gasket 2212 is located at the end of the rubber stopper 2204 facing the flow cell 21 and is fitted to the rubber stopper 2204 and the flow cell 21.
[0035] The cylindrical mirror body 2208 uses a sapphire lens, which not only has good light transmission, making the detection more accurate, but also has properties such as chemical corrosion resistance and high hardness, which can greatly improve its service life and increase work efficiency.
[0036] The wave crest gasket 2209 is a wave-shaped gasket with through holes, which enables the annular pressure plate 2211 to better fix the cylindrical mirror body 2208, prevent vibration and loosening from affecting the detection, and has a buffering effect to protect the cylindrical mirror body 2208 from damage.
[0037] The stainless steel ring plate 2210 has a through hole in its center, and the rubber plug ring plate 2211 has a hole in its center to allow light to pass through, so that the light emitted by the emitting module 23 can pass smoothly through the cylindrical mirror body 2208 and enter the detection liquid.
[0038] It should be noted that a PTFE gasket 2207 can also be installed between the wave crest gasket 2209 and the cylindrical mirror body 2208 to further buffer the pressure of the wave crest gasket 2209 on the cylindrical mirror body 2208, prevent damage to the cylindrical mirror body 2208, reduce operating costs, and improve work efficiency.
[0039] The transmitting module 23 is fixed to the end face of the rubber plug annular pressure plate 2211 inside the first junction box 22, facing away from the flow pool, and is connected to the control box 1 through a wire.
[0040] The second junction box 24 is fixed at the end of the flow cell 21 that is closer to the outlet 2102 of the detection liquid. Except for the receiving module 25, which is fixed on the end face of the rubber stopper annular pressure plate facing away from the flow cell, the other components of the second junction box 24 are the same as those of the first junction box 22. The rubber stopper mating components and the receiving (transmitting) module are arranged sequentially from the flow cell to the tail of the junction box.
[0041] It should be further explained that both the first junction box 22 and the second junction box 24 utilize a multi-layer sealing structure consisting of a first sealing gasket, a first O-ring, a second O-ring, a PTFE gasket, and a second sealing gasket. Combined with a rubber stopper, a wave plate, and a stainless steel ring, this effectively prevents the detection liquid from leaking from the flow cell into the optical elements, ensuring the stability and reliability of the analyzer during long-term online operation, reducing maintenance frequency and the risk of failure. In addition, the rubber stopper annular pressure plate and the stainless steel ring compress the wave plate, firmly positioning the cylindrical mirror and other optical elements, preventing displacement caused by vibration or temperature changes, and improving measurement accuracy and repeatability.
[0042] The transmitting module 23 includes a tubular transmitting module housing 231, a cylindrical transmitting module hollow base 234 embedded in the inner hole of the transmitting module housing 231, a first transmitting module wiring board 232 fixed to one end face of the transmitting module hollow base 234, a second transmitting module wiring board 233 fixedly disposed in the inner hole of the transmitting module hollow base 234 near the first transmitting module wiring board 232, and a photoelectric sensor fixed to the center of the end face of the second transmitting module wiring board 233 on the side opposite to the first transmitting module wiring board 232. The diode 235, the beam splitter 236 fixedly mounted on the end face of the photodiode 235 facing away from the second wiring board 233 of the emitting module, the convex lens 237 of the emitting module fixed in the inner hole of the other end of the emitting module hollow base 234, and the silicon photovoltaic cell 238 of the emitting module embedded and fixed in the inner hole sidewall of the emitting module hollow base 234 opposite to the beam splitter 236 and the photodiode 235, the center lines of the photodiode 235, the beam splitter 236 and the convex lens 237 of the emitting module are on the same straight line.
[0043] The hollow base 234 of the launch module is tightly fitted with the outer shell 231 of the launch module.
[0044] The hollow base 234 of the launch module has a first through groove and a second through groove with progressively smaller thicknesses along its length, starting from one end face and centered on the central axis of the launch module hollow base 234. The center faces of the first through groove and the second through groove are on the same plane. Inside the hollow base 234, there are a first stepped hole, a second stepped hole, and a third stepped hole with progressively smaller diameters from the outer end face of the first through groove to the other end of the launch module hollow base 234. The first stepped hole and the first through groove have the same length. An arc-shaped hole is formed at the center of the other end face of the launch module hollow base 234. The first wiring board 232 of the launch module has the same diameter as the outer circle of the launch module hollow base 234 and is fixed to the outer end face of the first through groove of the launch module hollow base 234. A transmitting terminal is fixed to the outer side of the plate 232. The second wiring board 233 of the transmitting module is fixed to the step surface where the first step hole and the second step hole intersect. The photodiode 235 is soldered to the second wiring board 233 of the transmitting module. The convex lens 237 of the transmitting module is embedded and fixed in the arc-shaped hole at the center of the other end face of the hollow base 234 of the transmitting module. The plane side of the convex lens 237 of the transmitting module is flush with the outer end face of the hollow base 234 of the transmitting module. The silicon photovoltaic cell 238 of the transmitting module is connected to the second wiring board 233 of the transmitting module through wires. The corresponding components on the second wiring board 233 of the transmitting module are connected to the first wiring board 232 of the transmitting module, the transmitting terminal, and the control box 1 in sequence through several wires, so that the silicon photovoltaic cell 238 and the photodiode 235 of the transmitting module can work normally.
[0045] It should be further explained that the arc-shaped hole at the center of the other end face of the hollow base 234 of the launch module is an arc-shaped hole in the inner wall, which is for better assembly of the convex lens 237 of the launch module.
[0046] The emitting module 23 integrates a photodiode 235, a beam splitter 236, a convex lens 237, and a silicon photodiode 238. The centerlines of the photodiode 235, beam splitter 236, and convex lens 237 are precisely fixed on the same straight line, achieving accurate beam splitting and focusing, thus improving the stability of the light source and the measurement sensitivity. The combination of the beam splitter and the convex lens allows for simultaneous multi-wavelength analysis, supports "panchromatic" measurements, and is suitable for online monitoring of complex samples. Furthermore, the design of the transmitter module 23, through the first through slot, the second through slot, the internal stepped hole, and the arc-shaped hole at the center of the other end face of the transmitter module hollow base 234, reliably fixes the transmitter module first wiring board 232 and the transmitter module second wiring board 233 with screws. Then, the photodiode 235, the beam splitter 236, the transmitter module convex lens 237, and the transmitter module silicon photovoltaic cell 238 are fixed to their respective positions by welding, bonding, and other methods. The structure is compact, reliable, and easy to disassemble, reducing production costs and maintenance difficulty. The screw and welding fixing methods of each component can ensure the alignment accuracy of the optical elements, making them less prone to loosening during long-term use. Moreover, it is easy to observe, maintain, and install, improving efficiency.
[0047] The receiving module 25 includes a tubular receiving module housing 251, a cylindrical receiving module hollow base 254 embedded in the inner hole of the receiving module housing 251, a receiving module first wiring board 252 fixed on one end face of the receiving module hollow base 254, a receiving module second wiring board 253 fixedly disposed in the inner hole of the receiving module hollow base 254 near the receiving module first wiring board 252, a receiving module silicon photovoltaic cell 255 fixedly installed at the center of the side end face of the receiving module second wiring board 253 facing away from the receiving module first wiring board 252, and a receiving module convex lens 256 fixedly installed in the center of the inner part of the receiving module hollow base 254 at the end farther from the receiving module first wiring board 252. The center lines of the receiving module convex lens 256 and the receiving module silicon photovoltaic cell 255 are on the same straight line.
[0048] The receiver module housing 251 and the receiver module hollow base 254 are tightly fitted together.
[0049] The receiving module hollow base 254 has a third through groove along its length, centered on the central axis of the receiving module hollow base 254. Inside the receiving module hollow base 254 are a fourth, fifth, and sixth stepped hole whose diameter decreases sequentially from the outer end face of the end with the third through groove to the inner end face of the other end. The length of the third through groove is the same as the length of the fourth stepped hole. An arc-shaped hole is formed at the center of the end face of the other end of the receiving module hollow base 254. The receiving module first wiring board 252 has the same outer diameter as the receiving module hollow base 254. The receiving module first wiring board 252 is fixed to the outer end face of the end with the third through groove of the receiving module hollow base 254 by screws. A receiving module first wiring board 252 has a receiving wiring post fixed at the center of its outer end face. A receiving module second wiring board 253 is fixed on the step surface where the fourth and fifth step holes intersect. A receiving module silicon photovoltaic cell 255 is welded and fixed to the center of the end face of the receiving module second wiring board 253 facing away from the receiving module first wiring board 252. A receiving module convex lens 256 is embedded and fixed in the arc-shaped hole at the center of the other end face of the receiving module hollow base 254, and one side of the plane of the receiving module convex lens 256 is flush with the outer end face of the receiving module hollow base 254 at that end. The receiving module silicon photovoltaic cell 255 welded to the receiving module second wiring board 253 is connected to the receiving module first wiring board 252, the receiving wiring post and the control box 1 in sequence through wires.
[0050] It should be further explained that the arc-shaped hole at the center of the end face of the other end of the hollow base 254 of the receiving module is also an arc-shaped hole in the inner wall, which is for better assembly of the convex lens 256 of the receiving module.
[0051] The receiving module 25, through the third through slot, fourth stepped hole, fifth stepped hole, and sixth stepped hole of the receiving module hollow base 254, as well as the arc-shaped hole at the center of the other end face, can reliably fix the first wiring board 252 and the second wiring board 253 of the receiving module into the receiving module hollow base 254. This, in turn, reliably fixes the silicon photovoltaic cell 255 and the convex lens 256 of the receiving module, ensuring that the center lines of the silicon photovoltaic cell 255 and the convex lens 256 in the receiving module 25 are precisely fixed on the same straight line. This reduces optical path deviation during operation, improves the accuracy and repeatability of color or spectral measurements, and allows for convenient and reliable fixing of the wiring board, silicon photovoltaic cell, and convex lens using screws, welding, or bonding. The compact structure and easy disassembly reduce production costs and maintenance difficulty. The screw, welding, and bonding fixing methods, along with the arc-shaped hole, ensure the alignment accuracy of the optical components, preventing loosening over long-term use. This facilitates observation, installation, and maintenance, improving efficiency.
[0052] When the online analyzer is working, the test liquid enters from the test liquid inlet 2201 and flows out from the test liquid outlet 2102. The transmitting module 23 and the receiving module 25 start working simultaneously and feed the signal back to the PLC controller for analysis and calculation.
[0053] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of this utility model, shall fall within the scope of protection of this utility model.
Claims
1. An online electrolyte color analyzer, comprising a control box and a sensing assembly connected to the control box via wires, the control box comprising an explosion-proof enclosure, a touch screen mounted at one end of the explosion-proof enclosure, and a PLC controller, a power switch, and an air switch mounted at the other end of the explosion-proof enclosure, characterized in that, The sensing assembly includes a flow cell for receiving an external detection liquid, a first junction box and a second junction box fixedly installed at both ends of the flow cell. A transmitting module is installed inside the first junction box, and a receiving module is installed inside the second junction box. A detection liquid inlet is located at the bottom of the flow cell, and a detection liquid outlet is located at the top of the flow cell. The first junction box includes a junction box body, a flange fixedly installed at the end of the flow cell closer to the detection liquid inlet, a first sealing gasket fitted onto the flange facing the flow cell, and a hollow rubber stopper for inserting into the flow cell. The stopper is fitted inside and passes through a recessed... The ring assembly includes a first O-ring and a second O-ring, a PTFE gasket embedded inside the rubber stopper and blocked by a stepped surface, a cylindrical mirror body inserted inside the rubber stopper and sealed against leakage by the first O-ring, the second O-ring, and the PTFE gasket, a corrugated gasket embedded inside the rubber stopper and abutting against the cylindrical mirror body, a stainless steel ring embedded inside the rubber stopper and abutting against the corrugated gasket, a rubber stopper annular pressure plate embedded inside the rubber stopper and used to press the stainless steel ring to fix the corrugated gasket, and a second sealing gasket located at the end of the rubber stopper facing the flow cell and cooperating with the rubber stopper in assembly with the flow cell.
2. The electrolyte panchromatic online analyzer according to claim 1, characterized in that, The cylindrical mirror body is made of sapphire lens.
3. The electrolyte panchromatic online analyzer according to claim 1, characterized in that, The crest gasket is a wavy gasket with through holes.
4. The online electrolyte panchromatic analyzer according to claim 1, characterized in that, The stainless steel ring has a through hole in its center, and the rubber plug ring pressure plate also has a hole in its center.
5. The electrolyte panchromatic online analyzer according to claim 1, characterized in that, The transmitting module is fixed to the end face of the rubber plug annular pressure plate inside the first junction box, facing away from the flow pool, and is connected to the control box via a wire.
6. The electrolyte panchromatic online analyzer according to claim 5, characterized in that, The second junction box is fixed at the end of the flow cell closer to the outlet of the detection liquid. Except for the receiving module, which is fixed on the end face of the rubber stopper ring pressure plate facing away from the flow cell, the other components of the second junction box are the same as those of the first junction box.
7. The electrolyte panchromatic online analyzer according to claim 1, characterized in that, The transmitting module includes a tubular transmitting module housing, a cylindrical transmitting module hollow base embedded in the inner hole of the transmitting module housing, a first transmitting module wiring board fixed on one end face of the transmitting module hollow base, a second transmitting module wiring board fixedly disposed in the inner hole of the transmitting module hollow base near the first transmitting module wiring board, a photodiode fixed at the center of the end face of the second transmitting module wiring board facing away from the first transmitting module wiring board, a beam splitter fixedly mounted on the end face of the photodiode facing away from the second transmitting module wiring board, a transmitting module convex lens fixed in the inner hole of the other end of the transmitting module hollow base, and a transmitting module silicon photovoltaic cell embedded and fixed on the inner hole sidewall of the transmitting module hollow base opposite to the beam splitter and photodiode. The center lines of the photodiode, beam splitter, and transmitting module convex lens are on the same straight line.
8. The electrolyte panchromatic online analyzer according to claim 7, characterized in that, The hollow base of the launch module fits tightly with the outer shell of the launch module. Starting from one end face, the hollow base has a first and a second through slot with decreasing thickness along its length, centered on the central axis of the hollow base. The center faces of the first and second through slots are on the same plane. Inside the hollow base, there are a first, a second, and a third stepped hole with decreasing inner diameter from the outer end face of the first through slot to the other end. The first stepped hole and the first through slot have the same length. An arc-shaped hole is formed at the center of the other end face of the hollow base. The first wiring board of the launch module has the same diameter as the outer circle of the hollow base, and the first wiring board of the launch module... The circuit board is fixed to the outer end face of the first through slot of the transmitter module hollow base. The outer side of the transmitter module first wiring circuit board is fixed with a transmitter terminal. The transmitter module second wiring circuit board is fixed to the stepped surface where the first stepped hole and the second stepped hole meet. The photodiode is soldered to the transmitter module second wiring circuit board. The transmitter module convex lens is embedded and fixed in the arc-shaped hole at the center of the other end face of the transmitter module hollow base, and one side of the plane of the transmitter module convex lens is flush with the outer end face of the transmitter module hollow base at that end. The transmitter module silicon photovoltaic cell is connected to the transmitter module second wiring circuit board through wires. The transmitter module second wiring circuit board is connected to the transmitter module first wiring circuit board, the transmitter terminal, and the control box in sequence through several wires.
9. The electrolyte panchromatic online analyzer according to claim 1, characterized in that, The receiving module includes a tubular receiving module housing, a cylindrical receiving module hollow base embedded in the inner hole of the receiving module housing, a first receiving module wiring board fixed on one end face of the receiving module hollow base, a second receiving module wiring board fixedly disposed in the inner hole of the receiving module hollow base near the first receiving module wiring board, a receiving module silicon photovoltaic cell fixedly installed at the center of the side end face of the second receiving module wiring board facing away from the first receiving module wiring board, and a receiving module convex lens fixedly installed at the center of the inner part of the receiving module hollow base at the end farther from the first receiving module wiring board, the center line of the receiving module convex lens and the center line of the receiving module silicon photovoltaic cell being on the same straight line.
10. The electrolyte panchromatic online analyzer according to claim 9, characterized in that, The receiving module housing and the receiving module hollow base are tightly fitted together. One end of the receiving module hollow base has a third through groove along its length, centered on the central axis of the receiving module hollow base. Inside the receiving module hollow base are fourth, fifth, and sixth stepped holes whose diameters decrease sequentially from the outer end face of the end with the third through groove to the inner end face of the other end. The length of the third through groove is the same as the length of the fourth stepped hole. An arc-shaped hole is formed at the center of the other end face of the receiving module hollow base. The first wiring board of the receiving module has the same outer diameter as the receiving module hollow base and is fixed to the receiving module hollow base by screws. On the outer end face of the end with the third through slot, a receiving terminal is fixed at the center of the outer end face of the first wiring board of the receiving module. The second wiring board of the receiving module is fixed on the step surface where the fourth and fifth stepped holes intersect. The silicon photovoltaic cell of the receiving module is welded and fixed to the center of the end face of the second wiring board of the receiving module on the side facing away from the first wiring board of the receiving module. The convex lens of the receiving module is embedded and fixed in the arc-shaped hole at the center of the other end face of the hollow base of the receiving module, and the flat side of the convex lens of the receiving module is flush with the outer end face of the hollow base of the receiving module at that end. The silicon photovoltaic cell of the receiving module welded to the second wiring board of the receiving module is connected to the first wiring board of the receiving module, the receiving terminal, and the control box in sequence through wires.