Concentration unit embedded into panel of sewage enrichment instrument

Abstract

The utility model relates to sewage treatment, in particular to a concentration unit embedded into a sewage enrichment instrument panel, a concentration hole is formed in the sewage enrichment instrument panel, a concentration shell connected with the concentration hole is fixedly arranged in the sewage enrichment instrument panel, and a concentration operation space is formed in the concentration shell; an upper chuck is arranged at the upper end of the concentration shell, a lower chuck is arranged at the lower end of the concentration shell, and a collecting pipe is mounted between the upper chuck and the lower chuck in a floating manner. Compared with the prior art, the concentration unit is embedded in the panel of the sewage enrichment instrument, so that drug components in a sewage sample can be enriched more efficiently, and the detection sensitivity is remarkably improved.

Description

Technical Field

[0001] The utility model relates to sewage treatment, in particular to a concentration unit embedded in the panel of a sewage enrichment instrument. Background Art

[0002] In order to effectively monitor and evaluate the use of drugs, the technology of drug detection in sewage has emerged. By detecting the drug residues in untreated domestic sewage, this technology can quantitatively analyze the drug consumption, types, and the scale of drug users in a specific area, thus revealing the distribution law and usage of drug use.

[0003] The application scenarios of the technology of drug detection in sewage are extensive, including but not limited to sewage treatment plants, crowded areas, surface rivers and lakes, etc. The sewage in these areas often contains trace amounts of drug components, which may come from the excreta of drug users or other channels. However, due to the extremely low content of drugs in sewage, special technical means are required for accurate detection.

[0004] In order to improve the accuracy and sensitivity of detection, it is necessary to enrich the sewage samples. At present, there are already some technologies that can achieve this goal. For example, Chinese Patent Publication No. CN114137242A discloses a device for automatically detecting trace drugs in sewage, which includes a sewage enrichment device. The sewage is enriched through the enrichment device to increase the concentration of drug components. Subsequently, the feeding device further processes the enriched sewage to adapt to the subsequent detection process. The precise dropping device is responsible for dropping the treated sewage onto the test card, and finally the automatic detection equipment completes the detection work.

[0005] However, due to the extremely low content of drugs in sewage, even the enriched samples still have relatively small drug content, which poses great challenges to the detection work. In practical applications, the risk of misjudgment still exists, especially when the drug content is close to the detection threshold. Therefore, how to further increase the drug content in the samples to reduce the misjudgment rate, improve the accuracy and reliability of detection, and be convenient and fast to operate is an urgent problem to be solved in the current technology of drug detection in sewage. Summary of the Utility Model

[0006] In order to solve the above technical problems or one of them, the utility model provides a concentration unit embedded in the panel of a sewage enrichment instrument, which further concentrates the drug components in the sewage, thereby significantly improving the sensitivity and accuracy of detection. The technical solution adopted by the utility model is:

[0007] A concentration unit embedded in the panel of a sewage enrichment instrument. A concentration hole is opened on the panel of the sewage enrichment instrument, and a concentration housing connected to the concentration hole is fixedly arranged inside the panel of the sewage enrichment instrument. A concentration operation space is formed inside the concentration housing. An upper chuck is arranged at the upper end of the concentration housing, and a lower chuck is arranged at the lower end. A collection tube is floatingly installed between the upper chuck and the lower chuck.

[0008] Further, the upper chuck includes an outer limit ring and an inner limit platform that pass through the concentration housing and enter it. The outer limit ring and the inner limit platform are connected by a plurality of abutting spokes. The inner diameter of the outer limit ring is slightly larger than the outer diameter of the collection tube, and the outer diameter of the inner limit platform is slightly smaller than the inner diameter of the collection tube. The thickness of the abutting spokes is smaller than the thickness of the outer limit ring and the inner limit platform. A sample enrichment liquid channel, a forced evaporation air flow channel, and a complex solution channel are opened in the upper chuck. The three channels are respectively opened on the upper end face or the adjacent face of the upper end face of the upper chuck and the lower end face of the inner limit platform. The upper end of the collection tube abuts against one or more of the abutting spokes.

[0009] Further, a blower is fixedly arranged inside the panel of the sewage enrichment instrument. The air outlet of the blower is connected to the upper end of an air duct, and the lower end of the air duct is connected to the forced evaporation air flow channel.

[0010] Further, an electric heating wire is wound around the air duct. A temperature sensor is installed at a position near the lower end inside the air duct. A temperature controller is installed on the panel of the sewage enrichment instrument beside the concentration hole. The temperature sensor is connected to the temperature controller.

[0011] Further, the control panel installed on the panel of the sewage enrichment instrument can set the starting timing, continuous time, and air volume change curve of the blower when entering the concentration process.

[0012] Further, the lower chuck includes a cylindrical elastic body that passes through the concentration housing and enters it. A flared opening is opened at the upper end of the cylindrical elastic body. The opening diameter of the flared opening is larger than the outer diameter of the collection tube. The conical arc surface of the flared opening abuts against the lower end of the collection tube.

[0013] Further, the cylindrical elastic body passes through the concentration housing with a large gap, and a driving groove is opened at its lower end. A motor is installed inside the panel of the sewage enrichment instrument and below the concentration housing. The motor shaft of the motor is fixedly connected to a vibrating disk. A driving shaft is fixedly connected to the vibrating disk. The vibrating disk and the driving shaft are not coaxial with the motor shaft of the motor. The driving shaft is embedded in the driving groove.

[0014] Further, an upper end of the cylindrical elastic body extends outward and downward to form a skirt, a lower end of the skirt abuts against a bottom wall of the concentration housing, and an outer diameter of the lower end of the skirt is greater than a gap between the bottom wall of the concentration housing and the cylindrical elastic body.

[0015] Further, the motor is elastically supported and mounted on a body within a panel of the sewage enrichment instrument.

[0016] Further, the motor is a DC motor and can adjust its rotational speed by changing the voltage or current supplied thereto.

[0017] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0018] Improving detection sensitivity: By embedding a concentration unit within a panel of the sewage enrichment instrument, the present utility model can more efficiently enrich drug components in sewage samples, thereby significantly improving the detection sensitivity.

[0019] Enhancing detection accuracy: The design of the concentration unit can more efficiently enrich drug components in sewage samples, thereby improving the accuracy of detection results.

[0020] Ease of operation: The concentration unit of the present utility model is designed to be embedded in the panel of the sewage enrichment instrument, simplifying the equipment layout, making the operation more convenient and fast, and reducing the operation complexity and error rate.

[0021] Flexibility and adaptability: The floating mounting method of the collection tube provides good adaptability, facilitates installation and removal, and enhances the versatility and flexibility of the equipment.

[0022] Reducing the risk of misjudgment: By increasing the concentration of drug components, the present utility model reduces the risk of misjudgment caused by the drug content approaching the detection threshold, and improves the reliability of detection.

[0023] Improving the sample processing efficiency: The compact design of the concentration unit reduces the loss of samples during the processing, and improves the utilization rate and processing efficiency of samples.

[0024] Facilitating integration and expansion: The concentration unit of the present utility model is easy to integrate with existing sewage detection systems, and can also be expanded or upgraded according to needs, having good compatibility and development potential.

[0025] Strong environmental adaptability: The design of the concentration unit takes into account applications under different environmental conditions, can stably operate under various environmental conditions, and improves the stability and durability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the present utility model outside the sewage enrichment instrument.

[0027] Figure 2 This is a schematic structural diagram of the present utility model inside the sewage enrichment instrument.

[0028] Figure 3 This is a schematic structural diagram of the upper chuck of the present utility model.

[0029] Figure 4 This is a schematic structural diagram of the upper chuck of the present utility model from another perspective.

[0030] Figure 5 This is a cross-sectional view of the upper chuck of the present utility model when combined with the collection tube, where the red dashed arrow is the path of the forced evaporation air flow.

[0031] Figure 6 This is a schematic structural diagram of the lower chuck of the present utility model.

[0032] Figure 7 This is a cross-sectional view of the lower chuck of the present utility model when combined with the collection tube.

[0033] Figure 8 This is a schematic structural diagram of the elastic support, motor, vibrating disk, and drive shaft of the present utility model.

[0034] Reference numerals in the figure: sewage enrichment instrument panel - 100, concentration hole - 101, concentration housing - 201, upper chuck - 202, outer limit ring - 2021, inner limit platform - 2022, abutting radial plate - 2023, sample enrichment liquid channel - 2024, forced evaporation air flow channel - 2025, complex solution channel - 2026, lower chuck - 203, cylindrical elastic body - 2031, flared mouth - 2032, drive groove - 2033, skirt - 2034, collection tube - 204, fan - 205, air duct - 206, motor - 207, vibrating disk - 208, drive shaft - 209, elastic support - 210, temperature controller - 211, control screen - 212. Detailed implementation manners

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "communication" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0038] As Figure 1-8 shown, a concentration unit embedded in the panel of a sewage enrichment instrument. A concentration hole 101 is opened on the panel 100 of the sewage enrichment instrument, and a concentration housing 201 connected to the concentration hole 101 is fixedly arranged inside the panel 100 of the sewage enrichment instrument. A concentration operation space is formed inside the concentration housing 201; an upper chuck 202 is arranged at the upper end of the concentration housing 201, a lower chuck 203 is arranged at the lower end, and a collection tube 204 is floatingly installed between the upper chuck 202 and the lower chuck 203.

[0039] Specifically, the upper chuck 202 includes an outer limiting ring 2021 and an inner limiting platform 2022 that pass through the concentration housing 201 and enter it. The outer limiting ring 2021 and the inner limiting platform 2022 are connected by a plurality of abutting spokes 2023. The inner diameter of the outer limiting ring 2021 is slightly larger than the outer diameter of the collection tube 204, the outer diameter of the inner limiting platform 2022 is slightly smaller than the inner diameter of the collection tube 204, and the thickness of the abutting spokes 2023 is smaller than the thicknesses of the outer limiting ring 2021 and the inner limiting platform 2022. A sample enrichment liquid channel 2024, a forced evaporation air flow channel 2025, and a complex solution channel 2026 are opened inside the upper chuck 202. The three channels are respectively opened on the upper end surface or the adjacent surface of the upper end surface of the upper chuck 202 and the lower end surface of the inner limiting platform 2022; the upper end of the collection tube 204 abuts against one or more of the abutting spokes 2023.

[0040] The lower chuck 203 includes a cylindrical elastic body 2031 that passes through the concentrator housing 201 and enters it. A flared opening 2032 is provided at the upper end of the cylindrical elastic body 2031. The opening diameter of the flared opening 2032 is larger than the outer diameter of the collection tube 204. The conical arc surface of the flared opening 2032 abuts against the lower end of the collection tube 204.

[0041] When installing the collection tube 204, when pressing down the collection tube 204, the conical arc surface of the collection tube 204 plastically deforms outward and downward, so that the upper end of the collection tube 204 can enter the outer limit ring 2021 of the upper chuck 202 and outside the inner limit platform 2022. After releasing the hand, the conical arc surface of the collection tube 204 rebounds upward and inward, so that the upper end of the collection tube 204 tightly abuts against one or more abutting web plates 2023. When removing the collection tube 204, just operate in the reverse direction. The forced evaporation air flow is blown into the collection tube 204 from the forced evaporation air flow channel 2025. After reversing from the sample enrichment liquid level in the collection tube 204, it is discharged from the gap between the adjacent abutting web plates 2023. The design of the upper chuck 202 integrates the limiting function and the fluid channel in one component. This design is very unique. It simplifies the structure, reduces the number of components, and improves the overall compactness and efficiency. The upper chuck 202 not only precisely controls the position of the collection tube 204, but also provides the sample enrichment liquid channel 2024, the forced evaporation air flow channel 2025 and the re-solution channel 2026. The integrated design of these three channels allows multiple functions to be realized in the same component, improving the convenience and efficiency of operation. By precisely designing the sizes of the outer limit ring 2021 and the inner limit platform 2022, the stable positioning of the collection tube 204 is ensured. At the same time, the thickness of the unique abutting web plate 2023 is less than the thickness of the limit ring and the inner limit platform, providing a flow-out channel for the evaporation air flow. This delicate design provides an innovative and effective sample processing solution. The design of the forced evaporation air flow channel 2025 allows the air flow to directly act on the sample in the collection tube 204, accelerating the evaporation process. The layout design of the three channels allows different fluids to be provided as needed without additional pipes or components. The integrated design of the upper chuck 202 simplifies the maintenance and cleaning process of the device, because all channels are concentrated on one component, which reduces the maintenance time and cost in this field. Through the design of the concentration unit, the efficient enrichment of drug components in sewage is achieved, improving the detection sensitivity. The loading and unloading process of the collection tube 204 is simple. Fast loading and unloading are realized through elastic deformation, improving the convenience of operation. The concentration unit is structurally compact, and each component works together, reducing the space occupation and facilitating integration into the existing system. Through multiple channels arranged in the upper chuck 202, the supply of the sample enrichment liquid, the evaporation air flow and the re-solution can be precisely controlled, optimizing the enrichment effect. The forced evaporation process helps to remove the moisture in the sample, concentrate the drug components, and improve the accuracy of the detection result. The design of the concentration unit provides a basis for automatic control, and automatic operation can be realized by further integrating control elements.

[0042] In another preferred embodiment, a blower 205 is fixedly installed within the sewage enrichment instrument panel 100. The air outlet of the blower 205 is connected to the upper end of an air duct 206, and the lower end of the air duct 206 is connected to the forced evaporation air flow channel 2025. An electric heating wire is wound around the air duct 206, and a temperature sensor is installed at a position near the lower end within the air duct 206. A temperature controller 211 is installed on the sewage enrichment instrument panel 100 beside the concentration opening 101, and the temperature sensor is connected to the temperature controller 211. When the temperature detected by the temperature sensor reaches the lower limit set by the temperature controller 211, the electric heating wire is powered on; when the temperature detected by the temperature sensor reaches the upper limit set by the temperature controller 211, the electric heating wire is powered off. This is used to adjust the temperature of the forced evaporation air flow. The preferred upper limit temperature is 80°C, and the lower limit temperature is 60°C. The application of hot air significantly increases the evaporation rate of the solvent, making the concentration process more rapid. An appropriate hot air temperature can not only accelerate the evaporation speed but also avoid damaging the sample, which helps to maintain the stability of the active ingredients in the sample. By adjusting the temperature and flow rate of the hot air, it is possible to adapt to the gradually decreasing liquid level within the collection tube 204..

[0043] In another preferred embodiment, the control screen 212 installed on the sewage enrichment instrument panel 100 can set the starting timing, duration, and air volume change curve of the blower 205 when entering the concentration process. Precisely controlling the start and operation of the blower 205 helps to optimize the concentration process according to actual needs and improve efficiency. The setting of the air volume change curve provides the possibility of flexibly adjusting the air volume to adapt to the concentration requirements at different stages. The setting of the control screen 212 lays the foundation for realizing the automatic control of the entire concentration process, helps to reduce manual intervention, and improves repeatability and reliability. Different working parameters can be set according to different sample characteristics and processing requirements, enhancing the adaptability of the equipment.

[0044] In another preferred embodiment, the cylindrical elastic body 2031 passes through the concentration housing 201 with a large clearance, and a drive groove 2033 is formed at its lower end; a motor 207 is installed inside the sewage enrichment instrument panel 100 and below the concentration housing 201. The motor shaft of the motor 207 is fixedly connected to a vibrating disk 208, a drive shaft 209 is fixedly connected to the vibrating disk, and both the vibrating disk and the drive shaft 209 are not coaxial with the motor shaft of the motor 207. The drive shaft 209 is inserted into the drive groove 2033. When the hot air concentrates the sample to the bottom of the collection tube, the motor 207 starts to rotate. Since both the vibrating disk and the drive shaft 209 are not coaxial with the motor shaft of the motor 207, oscillations will occur. At the same time, because the drive shaft 209 is not coaxial with the motor shaft of the motor 207, it will drive the collection tube 204 to perform a circular motion. This circular motion takes the vertical line passing through the center of the inner limit platform 2022 as the rotation axis, and the movement trajectory of the collection tube 204 forms a conical surface. In this way, the collection tube 204 is tilted and rotates, and each part of its inner wall can receive the complex solution dripping from the complex solution channel of the upper chuck 202, so that the complex solution can flow along its inner wall and be evenly distributed. At the same time, the liquid in the collection tube 204 also oscillates and swirls in a vortex shape, so that the drug components remaining on the tube wall after the evaporation of the eluent can be redissolved by the complex solution and concentrated and flow to the bottom of the collection tube. After several rotations, it is ensured that the residual drug components on each part of the inner wall of the collection tube can be effectively redissolved and collected. The methods of hot air concentration and oscillating redissolution not only improve the efficiency and accuracy of sample processing, but also reduce manual intervention through automatic control, providing an efficient and reliable solution for the pretreatment of samples in sewage drug testing.

[0045] In another preferred embodiment, the upper end of the cylindrical elastic body 2031 extends outward and downward to form a skirt 2034. The lower end of the skirt 2034 abuts against the bottom wall of the concentration housing 201, and the outer diameter of the lower end of the skirt 2034 is larger than the clearance between the bottom wall of the concentration housing 201 and the cylindrical elastic body 2031. Thus, the large clearance between the bottom wall of the concentration housing 201 and the cylindrical elastic body 2031 is closed. The skirt 2034 also provides additional support, enhancing the stability of the cylindrical elastic body 2031 in the concentration housing 201. The skirt 2034 also helps to keep the environment of the operation space clean and improve the safety of the working environment.

[0046] In another preferred embodiment, the motor 207 is mounted on the body within the sewage enrichment instrument panel 100 through an elastic support 210. The elastic support 210 helps reduce the loss of vibration during transmission, ensuring that the oscillation generated by the vibrating disk 208 can be effectively transmitted to the collection tube 204. By maintaining the integrity of the oscillation, the uniformity and efficiency of the mixing of the complex solution and the sample residue can be improved. The elastic support 210 reduces the direct impact and vibration of the motor operation on the body structure, extending the service life of the body. The use of the elastic support helps absorb and isolate noise, improving the working environment.

[0047] In another preferred embodiment, the motor 207 is a DC motor and can adjust the rotational speed by changing the voltage or current supplied to it. The rotational speed of the motor can be flexibly adjusted according to specific application requirements to optimize the oscillation effect. At different working stages, the rotational speed of the motor can be adjusted to match the optimal working conditions, improving the overall efficiency.

[0048] Although the present invention has been described in detail with general descriptions and specific embodiments above, on the basis of the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

[0049] The parts not described in detail in the present invention are the prior art or common general knowledge in the art.

Claims

1. A concentration unit embedded in the panel of a sewage enrichment instrument, characterized in that, A concentration hole (101) is formed in the panel (100) of the sewage enrichment instrument. A concentration housing (201) connected to the concentration hole (101) is fixedly installed inside the panel (100) of the sewage enrichment instrument, and a concentration operation space is formed inside the concentration housing (201). An upper chuck (202) is arranged at the upper end of the concentration housing (201), and a lower chuck (203) is arranged at the lower end. A collecting pipe (204) is floatingly installed between the upper chuck (202) and the lower chuck (203).

2. The concentration unit embedded in the panel of the sewage enrichment instrument according to claim 1, wherein, The upper chuck (202) includes an outer limiting ring (2021) and an inner limiting platform (2022) that pass through the concentration housing (201) and enter it. The outer limiting ring (2021) and the inner limiting platform (2022) are connected by a plurality of abutting spokes (2023). The inner diameter of the outer limiting ring (2021) is slightly larger than the outer diameter of the collecting pipe (204), and the outer diameter of the inner limiting platform (2022) is slightly smaller than the inner diameter of the collecting pipe (204). The thickness of the abutting spokes (2023) is smaller than the thickness of the outer limiting ring (2021) and the inner limiting platform (2022). A sample enrichment liquid channel (2024), a forced evaporation air flow channel (2025), and a complex solution channel (2026) are formed in the upper chuck (202). These three channels respectively open at the upper end surface or the adjacent surface of the upper end surface of the upper chuck (202) and the lower end surface of the inner limiting platform (2022). The upper end of the collecting pipe (204) abuts against one or more of the abutting spokes (2023).

3. The concentration unit embedded in the panel of the sewage enrichment instrument according to claim 2, characterized in that, A blower (205) is fixedly installed inside the panel (100) of the sewage enrichment instrument. The air outlet of the blower (205) is connected to the upper end of an air duct (206), and the lower end of the air duct (206) is connected to the forced evaporation air flow channel (2025).

4. A concentration unit embedded in the panel of a sewage enrichment instrument according to claim 3, characterized in that An electric heating wire is wound around the air duct (206), a temperature sensor is installed at a position near the lower end inside the air duct (206), and a temperature controller (211) is installed on the panel (100) of the sewage enrichment instrument beside the concentration hole (101). The temperature sensor is connected to the temperature controller (211).

5. The concentration unit embedded in the panel of the sewage enrichment instrument according to claim 3, characterized in that A control panel (212) installed on the panel (100) of the sewage enrichment instrument can set the starting time, the duration, and the air volume change curve of the blower (205) when the blower (205) starts during the concentration process.

6. The concentration unit embedded in the panel of the sewage enrichment instrument according to claim 1, characterized in that, The lower chuck (203) includes a cylindrical elastic body (2031) that passes through the concentration housing (201) and enters it. A flared opening (2032) is formed at the upper end of the cylindrical elastic body (2031). The opening diameter of the flared opening (2032) is larger than the outer diameter of the collecting pipe (204), and the conical arc surface of the flared opening (2032) abuts against the lower end of the collecting pipe (204).

7. The concentration unit embedded in the panel of the sewage enrichment instrument according to claim 6, characterized in that, The cylindrical elastic body (2031) passes through the concentration housing (201) with a large gap, and a drive groove (2033) is formed at its lower end; a motor (207) is installed below the concentration housing (201) inside the sewage enrichment instrument panel (100). A vibration disk (208) is fixedly connected to the motor shaft of the motor (207), a drive shaft (209) is fixedly connected to the vibration disk, and both the vibration disk and the drive shaft (209) are not coaxial with the motor shaft of the motor (207). The drive shaft (209) is embedded in the drive groove (2033).

8. A concentration unit embedded in the panel of a sewage enrichment instrument according to claim 7, characterized in that, An upper end of the cylindrical elastic body (2031) extends outward and downward to form a skirt (2034). A lower end of the skirt (2034) abuts against a bottom wall of the concentration housing (201), and an outer diameter of a lower end of the skirt (2034) is larger than a gap between the bottom wall of the concentration housing (201) and the cylindrical elastic body (2031).

9. The concentration unit embedded in the panel of the sewage enrichment instrument according to claim 7, characterized in that The motor (207) is installed on a body inside the sewage enrichment instrument panel (100) through an elastic support (210).

10. A concentration unit embedded in the panel of the sewage enrichment instrument according to claim 7, characterized in that, The motor (207) is a DC motor and can adjust its rotation speed by changing the voltage or current supplied to it.

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