Rapid replacement device for chemical reaction tank

Abstract

The utility model provides a chemical reaction tank quick replacement device, which comprises an operation panel, a six-way valve, an optical fiber assembly, a reaction tank and a spring pressing mechanism, the front end of the six-way valve is butted with one end of the reaction tank through a first butting port, and the rear end of the six-way valve is tightly jacked by a first elastic assembly, so that stable connection of an optical path and a fluid channel is ensured; the liquid outlet end of the side wall of the reaction tank is communicated with the waste liquid head through a second butt joint opening in the top of the spring pressing block and is vertically pressed and sealed by a second elastic assembly, the device is suitable for water quality and biological medicine detection under high-temperature, high-pressure and strong-corrosive media, and the liquid leakage risk and the maintenance cost are reduced. Through spring elastic sealing, corrosion-resistant materials, a full-light-shielding structure and unpowered mechanical design, the problems that a traditional reaction tank is tedious in replacement, poor in sealing performance, prone to corrosion, high in maintenance cost and the like are comprehensively solved, the reliability, safety and operation efficiency of a detection system are remarkably improved, and online detection requirements under complex working conditions are met.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, specifically to a rapid replacement device for a chemical reaction tank. Background Technology

[0002] In online water quality heavy metal detection, biochemical or pharmaceutical analysis, the reaction cell is a core component, used to determine the concentration of analytes through techniques such as voltammetry, atomic absorption spectrometry, and inductively coupled plasma mass spectrometry. Its working principle is as follows: a laser emits a laser beam onto the surface of a probe sensor within the reaction cell. When the solution to be tested flows through the probe, a chemical reaction occurs, causing a change in the laser wavelength. This change is received by a photoelectric sensor and the concentration is analyzed using an algorithm. However, the reaction cell is exposed to high temperature, high pressure, and highly corrosive liquid environments for extended periods, making it prone to aging, damage, or contamination, requiring periodic replacement. Furthermore, different reaction cells are needed for different detection media (such as acid and alkali solutions, organic solvents, etc.), further increasing the replacement frequency.

[0003] Insufficiency of existing technology:

[0004] 1. Complex replacement process: Traditional reaction tanks are fixed with bolts or clips, requiring the disassembly of multiple parts (such as sealing caps, pipe joints, etc.), which is cumbersome, time-consuming, and requires professional personnel.

[0005] 2. Low sealing reliability: Repeated disassembly and assembly can easily lead to deformation or wear of the sealing ring, and the interface is prone to leakage due to uneven pressure. Especially under high pressure or corrosive media, leakage may damage the equipment or affect the detection accuracy.

[0006] 3. Poor operational compatibility: Some designs do not take into account the need for rapid adaptation. After replacement, the optical path needs to be manually calibrated or the fluid path needs to be readjusted, which increases the complexity of operation.

[0007] 4. Insufficient corrosion resistance of materials: Some reaction tanks are made of ordinary engineering plastics or metals, which are prone to corrosion when in contact with strong acids, strong alkalis or organic solvents for a long time, thus shortening their service life.

[0008] 5. Lack of light-shielding design: Traditional reaction cells do not provide full light-shielding protection for optical fibers and optical paths. Ambient light interference may increase the noise of photoelectric signals and affect the detection sensitivity.

[0009] Therefore, existing technologies have shortcomings and need further improvement. Utility Model Content

[0010] To address the problems existing in the prior art, this utility model provides a quick replacement device for chemical reaction tanks.

[0011] To achieve the above objectives, the specific solution of this utility model is as follows:

[0012] This utility model provides a rapid replacement device for a chemical reaction tank, comprising:

[0013] Operation panel;

[0014] A six-way valve is installed on the operation panel. The rear end of the six-way valve is provided with a first elastic component, and the front end of the six-way valve is provided with a first pair of interfaces. A first silicone sealing ring is provided at the first pair of interfaces.

[0015] The optical fiber assembly includes an optical fiber, a first connector, and a fixing bracket. The fixing bracket is mounted on the operation panel, the first connector is mounted on the fixing bracket, and the optical fiber is connected to the first connector.

[0016] The reaction tank has one end connected to the first connector of the optical fiber assembly and the other end connected to the first pair of interfaces at the front end of the six-way valve and sealed by the first silicone sealing ring. The first elastic component presses the six-way valve against the reaction tank from the rear end, thereby pressing the six-way valve, the reaction tank and the first connector together. The side wall of the reaction tank is also provided with a liquid outlet.

[0017] The spring pressing mechanism includes a spring pressing block, a spring fixing plate, and a second elastic component;

[0018] The upper and lower ends of the spring pressing block are located on the upper and lower sides of the operation panel, respectively.

[0019] The top of the spring pressing block is provided with a second pair of interfaces, and the liquid outlet on the side wall of the reaction tank is connected to the second pair of interfaces. A second silicone sealing ring is provided at the second pair of interfaces.

[0020] The lower end of the spring-loaded pressing block is also equipped with a waste liquid head, the tail end of which is connected to the second pair of interfaces.

[0021] A spring fixing plate is provided below the spring pressing block. The two ends of the spring fixing plate are installed on the lower side of the operation panel. The front end of the waste liquid head passes through the spring fixing plate for discharging waste liquid.

[0022] The second elastic component is disposed between the spring pressing block and the spring fixing plate, and is used to elastically press and seal the second pair of interfaces at the upper end of the spring pressing block with the liquid outlet end of the reaction tank.

[0023] When replacing the reaction tank, push the sliding six-way valve to release the pressure at both ends of the reaction tank, remove the reaction tank, connect the outlet end of the new reaction tank to the second pair of interfaces of the spring pressing block, and then connect both ends of the reaction tank to the fiber optic connector and the first pair of interfaces of the six-way valve, and press them together through the first elastic component and the second elastic component.

[0024] Furthermore, the spring pressing block is in the shape of an inverted T.

[0025] Furthermore, the vertical cross-section of the spring fixing plate is U-shaped.

[0026] Furthermore, the first elastic component includes a movable shaft, a first spring, and a fixed shaft;

[0027] The movable shaft is installed at the rear end of the six-way valve, one end of the fixed shaft is installed on the operation panel and the other end is inserted into the movable shaft. The first spring is located inside the movable shaft and elastically engages with the front end of the fixed shaft to achieve elastic engagement between the movable shaft and the fixed shaft.

[0028] Furthermore, the second elastic component includes a second spring and a third spring;

[0029] The second and third springs are disposed between the spring pressing block and the spring fixing plate, and the waste liquid head passes through the middle of the second spring.

[0030] Furthermore, a fiber optic protective cover is provided on the outside of the optical fiber to shield it and create a completely light-proof environment.

[0031] Furthermore, both the reaction tank and the six-way valve are made of highly corrosion-resistant plastic.

[0032] The technical solution of this utility model has the following beneficial effects:

[0033] 1. Quick replacement and efficient operation

[0034] The reaction vessel can be disassembled and assembled with a single click through the linkage design of the six-way valve and the elastic components (first elastic component and second elastic component). During replacement, simply push the sliding six-way valve and press the spring mechanism to quickly release or tighten the reaction vessel, greatly shortening the replacement time and reducing the complexity of operation, without requiring professional personnel or special tools.

[0035] 2. Multiple seals ensure reliability

[0036] The system employs dual silicone sealing rings (first pair of interfaces and second pair of interfaces) and an elastic compression mechanism. Through the synergistic action of the first, second, and third springs, it ensures uniform force on both ends of the reaction tank and the liquid outlet, avoiding leakage problems caused by uneven pressure and significantly improving sealing stability in high-temperature, high-pressure, and highly corrosive environments.

[0037] 3. Corrosion-resistant and long-life design

[0038] The core components, such as the reaction tank and the six-way valve, are made of highly corrosion-resistant plastic material, which can withstand corrosive media such as acid and alkali solutions and organic solvents for a long time, reducing the frequency of replacement due to material aging and extending the overall service life of the equipment.

[0039] 4. A fully light-proof environment improves detection accuracy.

[0040] A protective cover is installed on the outside of the optical fiber to form a fully enclosed light-proof environment, effectively shielding external light interference and ensuring the accuracy of photoelectric sensor signal acquisition, thereby improving the sensitivity and signal-to-noise ratio of concentration detection.

[0041] 5. Modularization and compatibility optimization

[0042] The design of the inverted T-shaped spring pressing block and the concave spring fixing plate simplifies the docking process between the liquid outlet and the waste liquid head, ensuring rapid adaptation to reaction tanks of different specifications.

[0043] The six-way valve integrates fluid control, reducing pipeline disassembly and assembly steps. After replacing the reaction tank, there is no need to readjust the fluid path or optical path, improving the compatibility of multi-scenario detection. Attached Figure Description

[0044] Figure 1 This is a top view of the present invention;

[0045] Figure 2 This is a cross-sectional view of the present invention;

[0046] Figure 3 This is a cross-sectional view of the present invention from another angle.

[0047] Attached image captions:

[0048] 1. Control panel; 2. Six-way valve; 3. First pair of interfaces; 4. First silicone sealing ring; 5. Optical fiber; 6. First connector; 7. Fixed bracket; 8. Reaction tank; 9. Liquid outlet; 10. Spring pressing block; 11. Spring fixing plate; 12. Second pair of interfaces; 13. Second silicone sealing ring; 14. Waste liquid head; 15. Movable shaft; 16. First spring; 17. Fixed shaft; 18. Second spring; 19. Third spring; 20. Optical fiber protective cover. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0050] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "front," "rear," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0053] Combination Figures 1-3 As shown, this utility model provides a quick replacement device for a chemical reaction tank, comprising:

[0054] Operation panel 1;

[0055] A six-way valve 2 is provided on the operation panel 1. The rear end of the six-way valve 2 is provided with a first elastic component, and the front end of the six-way valve 2 is provided with a first pair of interfaces 3. A first silicone sealing ring 4 is provided at the first pair of interfaces 3.

[0056] The optical fiber assembly includes an optical fiber 5, a first connector 6, and a fixing bracket 7. The fixing bracket 7 is mounted on the operation panel 1, the first connector 6 is mounted on the fixing bracket 7, and the optical fiber 5 is connected to the first connector 6.

[0057] The reaction tank 8 has one end connected to the first connector 6 of the optical fiber assembly, and the other end connected to the first interface 3 at the front end of the six-way valve 2 and sealed by the first silicone sealing ring 4. The first elastic component presses the six-way valve 2 against the reaction tank 8 from the rear end, thereby pressing the six-way valve 2, the reaction tank 8 and the first connector 6 together. The side wall of the reaction tank 8 is also provided with a liquid outlet 9.

[0058] The spring pressing mechanism includes a spring pressing block 10, a spring fixing plate 11, and a second elastic component;

[0059] The upper and lower ends of the spring pressing block 10 are located on the upper and lower sides of the operation panel 1, respectively.

[0060] The top of the spring pressing block 10 is provided with a second pair of interfaces 12, and the liquid outlet 9 on the side wall of the reaction tank 8 is connected to the second pair of interfaces 12. A second silicone sealing ring 13 is provided at the second pair of interfaces 12.

[0061] The lower end of the spring pressing block 10 is also equipped with a waste liquid head 14, and the tail end of the waste liquid head 14 is connected to the second pair of interfaces 12.

[0062] A spring fixing plate 11 is provided below the spring pressing block 10. Both ends of the spring fixing plate 11 are installed on the lower side of the operation panel 1. The front end of the waste liquid head 14 passes through the spring fixing plate 11 for discharging waste liquid.

[0063] The second elastic component is disposed between the spring pressing block 10 and the spring fixing plate 11, and is used to elastically press and seal the second pair of interfaces 12 at the upper end of the spring pressing block 10 with the liquid outlet end 9 of the reaction tank 8.

[0064] When replacing the reaction tank 8, push the sliding six-way valve 2 to release the pressure at both ends of the reaction tank 8, remove the reaction tank 8, connect the liquid outlet 9 of the new reaction tank 8 to the second pair of interfaces 12 of the spring pressing block 10 and press it down, then connect both ends of the reaction tank 8 to the fiber optic connector 5 and the first pair of interfaces 3 of the six-way valve 2, and press them together through the first elastic component and the second elastic component.

[0065] The spring pressing block 10 is in the shape of an inverted T.

[0066] The vertical cross-section of the spring fixing plate 11 is U-shaped.

[0067] The first elastic component includes a movable shaft 15, a first spring 16, and a fixed shaft 17;

[0068] The movable shaft 15 is installed at the rear end of the six-way valve 2. One end of the fixed shaft 17 is installed on the operation panel 1 and the other end is inserted into the movable shaft 15. The first spring 16 is located inside the movable shaft 15 and elastically engages with the front end of the fixed shaft 17 to achieve elastic engagement between the movable shaft 15 and the fixed shaft 17.

[0069] The second elastic component includes a second spring 18 and a third spring 19;

[0070] The second spring 18 and the third spring 19 are disposed between the spring pressing block 10 and the spring fixing plate 11, and the waste liquid head 14 passes through the middle of the second spring 18.

[0071] The outer side of the optical fiber 5 is provided with an optical fiber protective cover 20 to shield the optical fiber 5 and form a completely light-proof environment.

[0072] Both the reaction tank 8 and the six-way valve 2 are made of highly corrosion-resistant plastic.

[0073] The principle of this utility model is as follows:

[0074] 1. Component docking and sealing mechanism

[0075] The six-way valve 2 is connected to the reaction tank 8:

[0076] One end of the reaction tank 8 is connected to the front end of the six-way valve 2 via the first pair of interfaces 3 and sealed by the first silicone sealing ring 4; the other end is connected to the first connector 6 of the optical fiber assembly. The first elastic component (movable shaft 15, first spring 16, fixed shaft 17) at the rear end of the six-way valve 2 presses the six-way valve 2 forward by the spring force, so that the six-way valve 2, the reaction tank 8 and the optical fiber 5 connector are pressed together to form a stable optical path and fluid channel.

[0077] The liquid outlet 9 connects to the waste liquid system:

[0078] The liquid outlet 9 on the side wall of the reaction tank 8 is connected to the second pair of interfaces 12 (including the second silicone sealing ring 13) on the top of the spring pressing block 10. The pressing block is pressed upward by the elastic force of the second elastic component (second spring 18, third spring 19) to ensure the seal between the liquid outlet 9 and the waste liquid head 14. The waste liquid is discharged to the external collection device through the waste liquid head 14.

[0079] 2. Elastic compression and rapid release

[0080] Function of the first elastic component:

[0081] The first spring 16 at the rear end of the six-way valve 2 provides axial elastic force through the plug-in structure of the movable shaft 15 and the fixed shaft 17, so that the six-way valve 2 always presses the reaction tank 8 to ensure the interface sealing.

[0082] Function of the second elastic component:

[0083] The second spring 18 and the third spring 19 between the spring pressing block 10 and the spring fixing plate 11 provide a vertical elastic force to press the liquid outlet 9 of the reaction tank 8 onto the second pair of interfaces 12 to prevent leakage.

[0084] 3. Quick Replacement Process

[0085] Dismantling of old reaction tank 8:

[0086] Push the rear end of the sliding six-way valve 2 to compress the first spring 16 and release the clamping force of the six-way valve 2 on the reaction tank 8;

[0087] At the same time, press down on the spring pressing block 10 to compress the second elastic component, so that the liquid outlet end 9 of the reaction tank 8 is separated from the second interface 12;

[0088] Remove reaction tank 8 from fiber optic connector 5 and six-way valve 2 interface.

[0089] Install new reaction tank 8:

[0090] Align the liquid outlet 9 of the new reaction tank 8 with the second pair of interfaces 12 of the spring pressing block 10 and press it down. The second elastic component will automatically tighten and seal.

[0091] Align the other end of the reaction tank 8 with the fiber optic connector 5 and the first pair of interfaces 3 of the six-way valve 2;

[0092] Release the six-way valve 2, and the first elastic component pushes the six-way valve 2 forward, automatically pressing the reaction tank 8 to complete the connection between the optical path and the flow path.

[0093] 4. Fluid control and waste liquid discharge

[0094] The six-way valve 2 integrates multi-channel fluid control function, automatically switching the fluid path when replacing the reaction tank 8, avoiding pipeline disassembly and assembly;

[0095] Waste liquid is guided by the waste liquid head 14 inside the spring pressing block 10 to the spring fixing plate 11, and discharged through the front end of the fixing plate, thus realizing centralized treatment of waste liquid.

[0096] 5. Corrosion-resistant and light-shielding design

[0097] Corrosion resistance: The reaction tank 8 and the six-way valve 2 are made of highly corrosion-resistant plastic materials to ensure long-term resistance to media such as acids, alkalis and organic solvents;

[0098] Fully light-proof environment: A protective cover is installed on the outside of fiber optic cable 5 to shield against ambient light interference and ensure the accuracy of signal acquisition by the photoelectric sensor.

[0099] Core Innovation Points

[0100] Through the linkage design of the six-way valve 2 and the elastic component, combined with the vertical pressing mechanism of the spring pressing mechanism, the reaction tank 8 can be quickly disassembled and assembled and multi-port synchronously sealed. At the same time, by using corrosion-resistant materials and light-shielding protection, the device can be stably operated and highly accurate detected in high-temperature, high-pressure and highly corrosive environments.

[0101] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent structural transformations made under the present utility model concept and based on the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A rapid replacement device for a chemical reaction tank, characterized in that, include: Operation panel; A six-way valve is installed on the operation panel. The rear end of the six-way valve is provided with a first elastic component, and the front end of the six-way valve is provided with a first pair of interfaces. A first silicone sealing ring is provided at the first pair of interfaces. The optical fiber assembly includes an optical fiber, a first connector, and a fixing bracket. The fixing bracket is mounted on the operation panel, the first connector is mounted on the fixing bracket, and the optical fiber is connected to the first connector. The reaction tank has one end connected to the first connector of the optical fiber assembly and the other end connected to the first pair of interfaces at the front end of the six-way valve and sealed by the first silicone sealing ring. The first elastic component presses the six-way valve against the reaction tank from the rear end, thereby pressing the six-way valve, the reaction tank and the first connector together. The side wall of the reaction tank is also provided with a liquid outlet. The spring pressing mechanism includes a spring pressing block, a spring fixing plate, and a second elastic component; The upper and lower ends of the spring pressing block are located on the upper and lower sides of the operation panel, respectively. The top of the spring pressing block is provided with a second pair of interfaces, and the liquid outlet on the side wall of the reaction tank is connected to the second pair of interfaces. A second silicone sealing ring is provided at the second pair of interfaces. The lower end of the spring-loaded pressing block is also equipped with a waste liquid head, the tail end of which is connected to the second pair of interfaces. A spring fixing plate is provided below the spring pressing block. The two ends of the spring fixing plate are installed on the lower side of the operation panel. The front end of the waste liquid head passes through the spring fixing plate for discharging waste liquid. The second elastic component is disposed between the spring pressing block and the spring fixing plate, and is used to elastically press and seal the second pair of interfaces at the upper end of the spring pressing block with the liquid outlet end of the reaction tank. When replacing the reaction tank, push the sliding six-way valve to release the pressure at both ends of the reaction tank, remove the reaction tank, connect the outlet end of the new reaction tank to the second pair of interfaces of the spring pressing block, and then connect both ends of the reaction tank to the fiber optic connector and the first pair of interfaces of the six-way valve, and press them together through the first elastic component and the second elastic component.

2. The rapid replacement device for the chemical reaction tank according to claim 1, characterized in that, The spring pressing block is in the shape of an inverted T.

3. The rapid replacement device for the chemical reaction tank according to claim 1, characterized in that, The vertical cross-section of the spring fixing plate is U-shaped.

4. The rapid replacement device for the chemical reaction tank according to claim 1, characterized in that, The first elastic component includes a movable shaft, a first spring, and a fixed shaft; The movable shaft is installed at the rear end of the six-way valve, one end of the fixed shaft is installed on the operation panel and the other end is inserted into the movable shaft. The first spring is located inside the movable shaft and elastically engages with the front end of the fixed shaft to achieve elastic engagement between the movable shaft and the fixed shaft.

5. The rapid replacement device for the chemical reaction tank according to claim 1, characterized in that, The second elastic component includes a second spring and a third spring; The second and third springs are disposed between the spring pressing block and the spring fixing plate, and the waste liquid head passes through the middle of the second spring.

6. The rapid replacement device for the chemical reaction tank according to claim 1, characterized in that, The outer side of the optical fiber is provided with an optical fiber protective cover to shield the optical fiber and form a completely light-proof environment.

7. The rapid replacement device for the chemical reaction tank according to claim 1, characterized in that, The reaction tank and the six-way valve are both made of highly corrosion-resistant plastic.

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