An on-line analyzer matching pretreatment remote monitoring device

Abstract

The utility model discloses a kind of online analysis instrument supporting pretreatment remote monitoring device, specifically related to pretreatment remote monitoring technical field, including pretreatment box, the inside of pretreatment box is installed with sample pipe, the output end of sample pipe is installed with sample pipe, the outside of sample pipe is installed with blowdown pipe, the outside of sample pipe is installed with standard gas pipe, the outside of sample pipe is installed with bypass pipe, the outside of sample pipe is installed with sample inlet pipe, the outside of sample pipe is installed with pressure sensor, the outside of sample pipe is installed with flow sensor, the inside of pretreatment box is installed with gas leakage alarm, the inside of pretreatment box is installed with temperature sensor, the inside of pretreatment box is installed with liquid leakage sensor.The utility model sample is measured by entering instrument by electric cut-off valve and pressure flow monitoring, pretreatment box is equipped with leakage alarm and temperature detection, when no sample, high pressure, low temperature, low flow or leakage, system remote alarm and cut off sample inlet to protect instrument.

Description

Technical Field

[0001] The present utility model relates to the technical field of pretreatment remote transmission monitoring, and more specifically, the present utility model relates to a pretreatment remote transmission monitoring device matching an on-line analyzer. Background Art

[0002] The pretreatment system supporting the on-line analyzer of the refining and chemical plant is a set of key auxiliary systems for purifying, adjusting and condition-controlling the sample stream directly extracted from the production plant. Its core task is to process the process medium with high temperature, high pressure, multiple impurities (such as liquid droplets, particulate matters, water vapor, corrosive components) and unstable state into a sample stream with appropriate temperature, stable pressure, cleanness, dryness, no corrosiveness and representativeness, so as to meet the strict sample injection requirements of the on-line analyzer, and ensure the accuracy, reliability and real-time performance of the analysis results as well as the safe, stable and long-period operation of the analyzer itself.

[0003] At present, most of the pretreatment systems supporting the on-line analyzers in refining and chemical plants adopt on-site monitoring for the monitoring of sample flow, pressure, temperature, pretreatment box temperature and the like, and there is no remote transmission system. Abnormalities in the on-site pretreatment system cannot be found in time, which brings safety risks to production and equipment.

[0004] In summary, for the safety of production and equipment, it is necessary to solve the problem of lack of real-time remote monitoring for key pretreatment parameters, so that when the pretreatment system is abnormal, real-time monitoring can be performed and personnel can be notified to handle it, and the pretreatment sample injection system can be cut off to eliminate the safety risks of production and equipment. Contents of Utility Model

[0005] The problem to be solved by the pretreatment remote transmission monitoring device matching an on-line analyzer provided by the present utility model is that: on-site monitoring has no remote transmission system, abnormalities in the on-site pretreatment system cannot be found in time, which brings safety risks to production and equipment.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A pretreatment remote transmission monitoring device matching an on-line analyzer, comprising a pretreatment box, a sample incoming pipe is installed inside the pretreatment box, the output end of the sample incoming pipe is provided with a sample delivery pipe, the outer side of the sample delivery pipe is provided with a sewage discharge pipe, the outer side of the sample delivery pipe is provided with a calibration gas pipe, the outer side of the sample delivery pipe is provided with a bypass pipe, the outer side of the sample delivery pipe is provided with a sample injection pipe, the outer side of the sample delivery pipe is provided with a pressure sensor, the outer side of the sample delivery pipe is provided with a flow sensor, a gas leakage alarm is installed inside the pretreatment box, a temperature sensor is installed inside the pretreatment box, and a liquid leakage sensor is installed inside the pretreatment box.

[0007] In a preferred embodiment, the sample inlet tube and the sample delivery tube are provided with valve mechanisms for controlling the flow of the medium. The valve mechanisms include a material inlet component and a waste discharge component. The material inlet component is used to filter impurities in the medium, and the waste discharge component is used to discharge waste.

[0008] In a preferred embodiment, the feeding assembly includes a needle valve mounted on the surface of the sample tube and a T-type filter mounted on the surface of the sample tube.

[0009] In a preferred embodiment, the drain assembly includes a pressure reducing valve mounted on the surface of the sample delivery tube, a coalescer mounted on the surface of the sample delivery tube, and a ball valve mounted on the surface of the drain pipe.

[0010] In a preferred embodiment, a medium detection mechanism is provided on the bypass tube and the sample inlet tube. The medium detection mechanism is used to detect the flow rate and composition of the medium. The medium detection mechanism includes a flow detection component and a medium analysis component. The flow detection component is used to detect the flow rate of the medium, and the medium analysis component is used to detect the composition of the medium.

[0011] In a preferred embodiment, the flow detection assembly includes a bypass flow meter mounted on the surface of a bypass tube and an injection flow meter mounted on the surface of an injection tube.

[0012] In a preferred embodiment, the media analysis component includes an analyzer body installed at the output end of the sample inlet tube and an outlet tube installed at the output end of the analyzer body.

[0013] In a preferred embodiment, a protective door is installed on the surface of the pretreatment box, a first electric shut-off valve is installed on the outside of the sample tube, and a second electric shut-off valve is installed on the outside of the standard gas tube.

[0014] The beneficial effects of this utility model are as follows: After the sample enters the pretreatment system, it passes through the first electric shut-off valve and the pressure and flow detection equipment with remote signal transmission before entering the instrument for measurement. Gas and liquid leakage alarm equipment and temperature detection equipment are installed in the pretreatment box. If any abnormality occurs during the operation of the instrument, such as no sample, excessively high sample pressure, excessively low pretreatment box temperature, excessively low flow, or sample leakage, the pretreatment system can remotely alarm and notify the equipment maintenance personnel for handling, and at the same time shut off the sample input to the instrument to prevent the abnormality from escalating and damaging the instrument equipment.

[0015] When the instrument needs to be calibrated and verified periodically, this utility model can ensure that the standard gas enters the instrument by cutting off the electric shut-off valve of the sample and opening the electric shut-off valve of the standard gas pipeline by monitoring the flow rate, and thus perform calibration and verification of the instrument. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the pretreatment box of this utility model.

[0019] Figure 4 This is a schematic diagram of the sample tube structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the pretreatment and detection component structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Pretreatment box; 11. Protective door; 12. Sample inlet tube; 13. Sample delivery tube; 14. Drainage tube; 15. Standard gas tube; 16. Bypass tube; 17. Sample inlet tube; 18. Pressure sensor; 19. Flow sensor; 20. First electric shut-off valve; 21. Second electric shut-off valve; 22. Gas leak alarm; 23. Temperature sensor; 24. Liquid leak sensor; 311. Needle valve; 312. T-type filter; 321. Pressure reducing valve; 322. Coalescer; 323. Ball valve; 411. Bypass flow meter; 412. Sample inlet flow meter; 421. Analyzer body; 422. Discharge tube. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5 An online analyzer is equipped with a pretreatment remote monitoring device, comprising a pretreatment box 1, an incoming sample tube 12 installed inside the pretreatment box 1, a sample delivery tube 13 installed at the output end of the incoming sample tube 12, a drain pipe 14 installed on the outside of the sample delivery tube 13, a standard gas tube 15 installed on the outside of the sample delivery tube 13, a bypass pipe 16 installed on the outside of the sample delivery tube 13, an inlet pipe 17 installed on the outside of the sample delivery tube 13, a pressure sensor 18 installed on the outside of the sample delivery tube 13, a flow sensor 19 installed on the outside of the sample delivery tube 13, a gas leak alarm 22 installed inside the pretreatment box 1, a temperature sensor 23 installed inside the pretreatment box 1, and a liquid leak sensor 24 installed inside the pretreatment box 1.

[0024] It should be noted that the pressure sensor 18, flow sensor 19, gas leak alarm 22, temperature sensor 23 and liquid leak sensor 24 are all equipped with signal transmission modules, which can upload real-time data to the central control room or cloud monitoring platform. This integrated multi-parameter remote monitoring design is the first to realize comprehensive remote real-time monitoring of key parameters of sample flow and the safety status of the chamber environment inside the pretreatment box 1.

[0025] It is worth noting that the coordinated layout of multiple types of sensors inside the pretreatment box 1 forms a closed-loop monitoring network. When any sensor triggers the alarm threshold, the system can automatically link the first electric shut-off valve 20 or the second electric shut-off valve 21 to cut off the flow of the medium, thus preventing instrument damage or safety accidents caused by sample abnormalities or box malfunctions from the source.

[0026] Refer to the instruction manual appendix Figures 4 to 5 The sample inlet tube 12 and the sample delivery tube 13 are equipped with valve mechanisms. The valve mechanisms are used to control the flow of the medium. The valve mechanisms include a material inlet component and a waste discharge component. The material inlet component is used to filter impurities in the medium, and the waste discharge component is used to discharge waste.

[0027] It should be noted that the valve mechanism is remotely controlled via electric or pneumatic actuators. The linkage design of the feeding and draining components ensures that waste is discharged in a timely manner while filtering impurities, maintaining system cleanliness. This is the foundation for ensuring sample representativeness and long-term stable operation of the analyzer.

[0028] Refer to the instruction manual appendix Figure 4 The incoming material assembly includes a needle valve 311 mounted on the surface of the incoming sample tube 12 and a T-type filter 312 mounted on the surface of the incoming sample tube 12.

[0029] It should be noted that the needle valve 311 is used to precisely adjust the sample flow rate, and the T-type filter 312 uses a stainless steel sintered filter element, which can efficiently intercept particulate matter. The two are connected in series at the inlet end of the sample tube 12 to form the first protective barrier to prevent large particulate impurities from entering subsequent precision components.

[0030] Refer to the instruction manual appendix Figure 5 The sewage discharge assembly includes a pressure reducing valve 321 mounted on the surface of the sample delivery pipe 13, a coalescer 322 mounted on the surface of the sample delivery pipe 13, and a ball valve 323 mounted on the surface of the sewage discharge pipe 14.

[0031] It should be noted that the pressure reducing valve 321 stabilizes the high-pressure sample to the pressure applicable to the analyzer, the coalescer 322 uses an ultra-fine fiber layer to condense and separate tiny droplets in the sample, and the ball valve 323 is used to quickly open and close the drain passage.

[0032] Refer to the instruction manual appendix Figure 5The bypass pipe 16 and the sample inlet pipe 17 are equipped with a medium detection mechanism, which is used to detect the flow rate and composition of the medium. The medium detection mechanism includes a flow detection component and a medium analysis component. The flow detection component is used to detect the flow rate of the medium, and the medium analysis component is used to detect the composition of the medium.

[0033] It should be noted that the media detection mechanism uses a bypass tube 16 and a sample inlet tube 17 to divert the flow of the main sample while introducing a small flow rate of sample into the analyzer for detection, thus avoiding overload of the analyzer body 421. The remote transmission of flow rate and composition data enables full-process tracking of sample quality.

[0034] It is worth noting that the combination of the flow detection component and the media analysis component not only provides real-time data, but also enables remote diagnosis of whether the pipeline is blocked or leaking by comparing the bypass and injection flow values.

[0035] Refer to the instruction manual appendix Figure 5 The flow detection assembly includes a bypass flow meter 411 mounted on the surface of the bypass pipe 16 and an injection flow meter 412 mounted on the surface of the injection pipe 17.

[0036] It should be noted that the bypass flow meter 411 monitors the total flow of the system to ensure sample flowability, while the injection flow meter 412 precisely controls the amount of sample entering the analyzer body 421. The data linkage between the two can remotely calibrate whether the sample injection conditions of the analyzer meet the standards.

[0037] Refer to the instruction manual appendix Figure 5 The media analysis component includes an analyzer body 421 installed at the output end of the sample inlet tube 17 and a discharge tube 422 installed at the output end of the analyzer body 421.

[0038] It should be noted that the analyzer body 421 is an online chromatograph or spectrometer, etc., which performs real-time component analysis on the purified sample. The discharge pipe 422 safely guides the analyzed sample back to the process or discharge, and the analysis results are transmitted to the control center through the communication module.

[0039] Refer to the instruction manual appendix Figures 1 to 5 The surface of the pretreatment box 1 is equipped with a protective door 11, the outside of the sample tube 12 is equipped with a first electric shut-off valve 20, and the outside of the standard gas tube 15 is equipped with a second electric shut-off valve 21.

[0040] It should be noted that the protective door 11 adopts a sealed explosion-proof design to ensure the stability of the internal environment of the chamber. The first electric shut-off valve 20 is installed at the inlet of the sample tube 12 for emergency shut-off of the sample source. The second electric shut-off valve 21 is installed at the standard gas tube 15 to realize remote and precise control of the standard gas supply and demand.

[0041] Working principle: After the sample medium enters the pretreatment chamber 1 from the sample inlet tube 12, the first electric shut-off valve 20 controls the flow. The medium flows through the needle valve 311 of the inlet assembly to regulate the flow rate, and passes through the T-type filter 312 to intercept particulate impurities. Then it enters the sample delivery tube 13, where the pressure is stabilized by the pressure reducing valve 321. The agglomerator 322 separates the droplets, and the waste is discharged through the ball valve 323 of the drain pipe 14. The clean sample flows in two paths: one path is backflowed after the total flow rate is monitored by the bypass flow meter 411 of the bypass pipe 16, and the other path is precisely controlled by the injection flow meter 412 through the injection tube 17, and is delivered to the analyzer body 421 for component detection. Finally, it is discharged through the discharge pipe 422. The entire process is controlled by a pressure sensor. The pressure sensor 18 and flow sensor 19 monitor pipeline parameters in real time. The gas leak alarm 22, liquid leak sensor 24 and temperature sensor 23 inside the pretreatment box 1 form a safety monitoring network. When any sensor detects an abnormality, such as excessive pressure, insufficient flow, leakage in the box or low temperature, the system remotely alarms and triggers the first electric shut-off valve 20 to close the sample inlet. At the same time, the second electric shut-off valve 21 of the standard gas pipe 15 switches the standard gas for instrument calibration or emergency protection, realizing rapid fault response and equipment safety protection. The pressure sensor 18 is model 3051S, the flow sensor 19 is model SITRANSFM, and the temperature sensor 23 is model PT100.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A pre-processing remote monitoring device for an online analyzer, characterized in that: The pretreatment box (1) is equipped with a sample inlet tube (12) inside the pretreatment box (1), a sample delivery tube (13) is installed at the output end of the sample inlet tube (12), a drain pipe (14) is installed on the outside of the sample delivery tube (13), a standard gas pipe (15) is installed on the outside of the sample delivery tube (13), a bypass pipe (16) is installed on the outside of the sample delivery tube (13), an inlet pipe (17) is installed on the outside of the sample delivery tube (13), a pressure sensor (18) is installed on the outside of the sample delivery tube (13), a flow sensor (19) is installed on the outside of the sample delivery tube (13), a gas leak alarm (22) is installed inside the pretreatment box (1), a temperature sensor (23) is installed inside the pretreatment box (1), and a liquid leak sensor (24) is installed inside the pretreatment box (1).

2. The online analyzer with preprocessing remote monitoring device according to claim 1, characterized in that: The sample inlet tube (12) and the sample delivery tube (13) are equipped with valve mechanisms. The valve mechanisms are used to control the flow of the medium. The valve mechanisms include a material inlet component and a waste discharge component. The material inlet component is used to filter impurities in the medium, and the waste discharge component is used to discharge waste.

3. The online analyzer with preprocessing remote monitoring device according to claim 2, characterized in that: The incoming material assembly includes a needle valve (311) mounted on the surface of the incoming sample tube (12) and a T-type filter (312) mounted on the surface of the incoming sample tube (12).

4. The online analyzer with preprocessing remote monitoring device according to claim 3, characterized in that: The drain assembly includes a pressure reducing valve (321) mounted on the surface of the sample delivery pipe (13), a coalescer (322) mounted on the surface of the sample delivery pipe (13), and a ball valve (323) mounted on the surface of the drain pipe (14).

5. The online analyzer with preprocessing remote monitoring device according to claim 1, characterized in that: The bypass tube (16) and the sample inlet tube (17) are equipped with a medium detection mechanism. The medium detection mechanism is used to detect the flow rate and composition of the medium. The medium detection mechanism includes a flow detection component and a medium analysis component. The flow detection component is used to detect the flow rate of the medium, and the medium analysis component is used to detect the composition of the medium.

6. The online analyzer with preprocessing remote monitoring device according to claim 5, characterized in that: The flow detection assembly includes a bypass flow meter (411) mounted on the surface of the bypass pipe (16) and an injection flow meter (412) mounted on the surface of the injection pipe (17).

7. The online analyzer with preprocessing remote monitoring device according to claim 6, characterized in that: The media analysis assembly includes an analyzer body (421) installed at the output end of the sample inlet tube (17) and an outlet tube (422) installed at the output end of the analyzer body (421).

8. The online analyzer with preprocessing remote monitoring device according to claim 7, characterized in that: The surface of the pretreatment box (1) is equipped with a protective door (11), the outside of the sample tube (12) is equipped with a first electric shut-off valve (20), and the outside of the standard gas tube (15) is equipped with a second electric shut-off valve (21).

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