A moisture detection system

Abstract

The utility model provides a kind of moisture detection system, including sampling port and controller, the sampling port is connected with first moisture analyzer by first channel, first solenoid valve is equipped on the first channel;The sampling port is connected with second moisture analyzer by second channel, second solenoid valve is equipped on the second channel;The range of the first moisture analyzer is greater than the range of the second moisture analyzer, the detection accuracy of the second moisture analyzer is higher than the detection accuracy of the first moisture analyzer;The first moisture analyzer, the first solenoid valve, the second moisture analyzer and the second solenoid valve are electrically connected to the controller respectively.Compared with prior art, the utility model has the advantages of simple maintenance, low economic cost and accurate detection, can adapt to the detection of full working condition, effectively avoid detection head damage or internal capacitor distortion, ensure the stability of the whole system operation.

Description

Technical Field

[0001] This utility model relates to the technical field of moisture detection, and in particular to a moisture detection system. Background Technology

[0002] Gas-phase reactions refer to non-catalytic homogeneous processes in which all substances involved in a chemical reaction are in the gaseous state. Their core characteristics lie in the molecular-level mixing properties of the reaction system and the absence of interfacial mass transfer resistance. Widely used in industrial processes such as hydrocarbon cracking and ammonia synthesis, plug flow reactors are typical industrial equipment in these processes. The moisture content in the reactor is a crucial reference condition, playing a decisive role in the entire process flow and simplified control. Moisture content is typically monitored in real-time using a moisture analyzer.

[0003] Currently, in the initial stage of the reactor, the quality of the incoming medium is substandard, and the moisture content fluctuates significantly. This causes the actual moisture content value to exceed the upper limit of the specific measurement curve of the moisture analyzer probe, sometimes even exceeding the upper limit calibrated by the probe's inherent curve. Consequently, it is impossible to accurately detect the actual moisture content, and the system cannot cover all operating conditions. Furthermore, the probe's curve calibration is completed before leaving the factory, lacking universality and being impossible to modify on-site. Moreover, when the moisture analyzer probe is subjected to conditions exceeding its detection limit for extended periods, it is prone to internal capacitance distortion, leading to permanent damage. This necessitates stopping the reaction equipment to replace the probe, resulting in high maintenance difficulty, cumbersome operation, and high costs. Therefore, there is an urgent need to solve these problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model achieves the above objectives through the following technical solution: a moisture detection system, comprising a sampling port and a controller; the sampling port is connected to a first moisture analyzer via a first channel, and a first solenoid valve is provided on the first channel; the sampling port is connected to a second moisture analyzer via a second channel, and a second solenoid valve is provided on the second channel; the measuring range of the first moisture analyzer is greater than that of the second moisture analyzer, and the detection accuracy of the second moisture analyzer is higher than that of the first moisture analyzer; the first moisture analyzer, the first solenoid valve, the second moisture analyzer, and the second solenoid valve are electrically connected to the controller.

[0005] Furthermore, the first moisture analyzer includes a housing and a control unit. The housing is provided with an input interface and a vent port. The housing contains a filter and a detection component. The inlet of the filter is connected to the input interface, and the outlet of the filter is connected to the vent port via a vent pipe. The filter is connected to the inlet of the detection component via a detection pipe, and the filter is connected to the outlet of the detection component via a discharge pipe. A first pressure gauge and a first flow meter are connected in series on the detection pipe, and a second flow meter is provided on the vent pipe. The detection component, the first pressure gauge, the first flow meter, and the second flow meter are electrically connected to the control unit, and the control unit is electrically connected to the controller.

[0006] Furthermore, the enclosure is equipped with a first explosion-proof junction box for wire connection; making it safer and more reliable.

[0007] Furthermore, the flow rate of the detection pipeline is controlled at 400 ml / min, and the flow rate of the venting pipeline is 5-10 times that of the detection pipeline; this effectively increases the flow rate entering the gas path system, thereby reducing lag time and improving the response performance of the instrument.

[0008] Furthermore, the enclosure is a cabinet-type structure with an observation window; the observation window facilitates observation of the internal working conditions and makes maintenance convenient, while the cabinet-type structure facilitates disassembly.

[0009] Furthermore, the control host is electrically connected to a display screen; it can intuitively display the working status of the first moisture analyzer and facilitate parameter setting.

[0010] Furthermore, the second moisture analyzer includes a housing and an analysis host. The housing has an input port and an output port. Inside the housing, and connected in series from the input port to the output port, are a third solenoid valve, a second pressure gauge, a fourth solenoid valve, a thermometer, a fifth solenoid valve, a third flow meter, and a detection probe. The housing also has a heater. The heater, the third solenoid valve, the second pressure gauge, the fourth solenoid valve, the thermometer, the fifth solenoid valve, the third flow meter, and the detection probe are electrically connected to the analysis host. The analysis host is electrically connected to the controller.

[0011] Furthermore, the housing is equipped with a second explosion-proof junction box for wire connection; making it safer and more reliable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By connecting a first moisture analyzer and a second moisture analyzer to the same sampling port, and under the control of the controller, the corresponding channel can be opened according to the current working conditions, allowing the corresponding moisture analyzer to perform detection. For working conditions with large fluctuations in moisture content, the first moisture analyzer with a larger range can perform preliminary detection. After the moisture content stabilizes, the second moisture analyzer can be controlled to perform precise detection, thereby detecting the actual moisture content and effectively eliminating detection gaps, covering all working conditions. Furthermore, the actual moisture content value will not exceed the detection limit of the detection head, eliminating the problem of internal capacitance distortion of the detection head, avoiding damage to the detection head, reducing replacement frequency, simplifying maintenance, and reducing costs, thus solving the technical problems in the prior art. Overall, this utility model has the advantages of simple maintenance, low economic cost, and accurate detection, can adapt to detection under all working conditions, effectively avoids damage to the detection head or internal capacitance distortion, and ensures the stable operation of the entire system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the system connection of this utility model; Figure 2 This is a schematic diagram of the structure of the first moisture analyzer in this utility model; Figure 3 This is a schematic diagram of the structure of the second moisture analyzer in this utility model.

[0014] The reference numerals in the attached drawings are explained as follows: 1-Sampling port; 2-First channel; 3-First moisture analyzer; 301-Box; 302-Control host; 303-Input interface; 304-Vent port; 305-Filter; 306-Detection component; 307-Vent pipe; 308-Detection pipe; 309-Discharge pipe; 310-First pressure gauge; 311-First flow meter; 312-Second flow meter; 313-First explosion-proof junction box; 314-Display screen; 315-Electrically controlled valve; 4- 5-Second Solenoid Valve; 6-Second Channel; 7-Second Moisture Analyzer; 601-Housing; 602-Analysis Main Unit; 603-Input Port; 604-Output Port; 605-Third Solenoid Valve; 606-Second Pressure Gauge; 607-Fourth Solenoid Valve; 608-Thermometer; 609-Fifth Solenoid Valve; 610-Third Flow Meter; 611-Detection Probe; 612-Heater; 613-Second Explosion-proof Junction Box; 614-First Three-Way Valve; 615-Second Three-Way Valve; 7-Second Solenoid Valve. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0017] like Figures 1 to 3 As shown, this utility model provides a moisture detection system, including a sampling port 1 and a controller. The sampling port 1 is connected to a first moisture analyzer 3 through a first channel 2, and a first solenoid valve 4 is provided on the first channel 2. The sampling port 1 is connected to a second moisture analyzer 6 through a second channel 5, and a second solenoid valve 7 is provided on the second channel 5. The measuring range of the first moisture analyzer 3 is greater than that of the second moisture analyzer 6, and the detection accuracy of the second moisture analyzer 6 is higher than that of the first moisture analyzer 3. The first moisture analyzer 3, the first solenoid valve 4, the second moisture analyzer 6, and the second solenoid valve 7 are electrically connected to the controller.

[0018] The first moisture analyzer 3 includes a housing 301 and a control host 302. The housing 301 is provided with an input interface 303 and an vent 304. The housing 301 is provided with a filter 305 and a detection component 306. The inlet of the filter 305 is connected to the input interface 303, the outlet of the filter 305 is connected to the vent 304 through a vent pipe 307, the filter 305 is connected to the inlet of the detection component 306 through a detection pipe 308, and the filter 305 is connected to the outlet of the detection component 306 through a discharge pipe 309. A first pressure gauge 310 and a first flow meter 311 are connected in series on the detection pipe 308, and a second flow meter 312 is installed on the vent pipe 307. The detection component 306, the first pressure gauge 310, the first flow meter 311, and the second flow meter 312 are electrically connected to the control host 302, which is in turn electrically connected to the controller. An electrically controlled valve 315, electrically connected to the control host 302, is located at the input interface 303 and can control the flow rate of fluid entering the first moisture analyzer 3. Specifically, the control host 302 obtains the current pressure and flow rate of the detection pipe 308 based on the real-time feedback from the first pressure gauge 310 and the first flow meter 311, and then controls the opening of the electrically controlled valve 315. The controller can also control the opening of the first solenoid valve 4 based on the feedback from the control host 302, thereby allowing the fluid to flow smoothly into the detection component 306 and ensuring its detection performance. The detection component 306 is preferably an electrolytic cell, also known as a measuring probe. It has a simple, robust, and durable structure, is easy to install and replace, has a long service life, and can be repeatedly regenerated. Users can apply the coating themselves, greatly reducing maintenance difficulty, time, and economic costs. The detection component 306 uses an absolute measurement method, directly measuring the water content in the gas using the electrolytic current, without requiring calibration by other methods or on-site calibration.

[0019] The enclosure 301 is equipped with a first explosion-proof junction box 313 for wire connection. The flow rate of the detection pipe 308 is controlled at 400 ml / min, and the flow rate of the vent pipe 307 is 5-10 times that of the detection pipe 308. The enclosure 301 has a cabinet structure and an observation window. A display screen 314 is electrically connected to the control host 302. Preferably, the observation window is made of transparent and high-strength plastic, and a sealing ring or other sealing structure is provided on the outer edge of the transparent window, enabling the first moisture analyzer 3 to adapt to harsher working environments.

[0020] The second moisture analyzer 6 includes a housing 601 and an analysis host 602. The housing 601 is provided with an input port 603 and an output port 604. Inside the housing 601, and connected in series from the input port 603 to the output port 604, are a third solenoid valve 605, a second pressure gauge 606, a fourth solenoid valve 607, a thermometer 608, a fifth solenoid valve 609, a third flow meter 610, and a detection probe 611. The housing 601 houses a heater 612. The heater 612, a third solenoid valve 605, a second pressure gauge 606, a fourth solenoid valve 607, a thermometer 608, a fifth solenoid valve 609, a third flow meter 610, and a detection probe 611 are electrically connected to the analysis host 602. The analysis host 602 is electrically connected to a controller. The housing 601 has a second explosion-proof junction box 613 for wire connections. Preferably, to ensure the accuracy of the analysis host 602, it is typically placed in a safe area.

[0021] Specifically, a first three-way valve 614 is connected between the third solenoid valve 605 and the second pressure gauge 606, and a second three-way valve 615 is connected between the temperature gauge 608 and the fifth solenoid valve 609. Both the first three-way valve 614 and the second three-way valve 615 are connected to the outside. In practice, the second pressure gauge 606, the temperature gauge 608, and the third flow meter 610 provide real-time feedback to the analysis host 602, allowing the analysis host 602 to obtain the current pressure, temperature, and flow rate. When the pressure value reported by the second pressure gauge 606 is outside the set range, the analysis host 602 will control the opening of the third solenoid valve 605 or control the first three-way valve 614 to switch, allowing the fluid to be discharged to the outside until the pressure reaches the set range. When the temperature value reported by the temperature gauge 608 is outside the set range, the analysis host 602 will control the heater 612 to heat up or cool down, and will also control the opening of the fourth solenoid valve 607 until the temperature reaches the set range. When the flow rate value fed back by the third flow meter 610 is not within the set range, the analysis host 602 will control the opening of the fifth solenoid valve 609 or control the second three-way valve 615 to switch, so that the fluid is discharged to the outside until the flow rate reaches the set range.

[0022] This utility model also discloses a control method for a moisture detection system, using the aforementioned moisture detection system; comprising the following steps: Step 1: The controller opens the first solenoid valve 4, and the fluid enters the first moisture analyzer 3 through the first channel 2. The first moisture analyzer 3 continuously detects the fluid. Step 2: When the real-time detection value detected by the first moisture analyzer 3 is lower than 5% of its set value, the second solenoid valve 7 is opened, and the fluid enters the second moisture analyzer 6 through the second channel 5. The second moisture analyzer 6 detects the fluid. When the real-time detection value detected by the second moisture analyzer 6 is lower than its set value, and the duration of this state is greater than T1, the first solenoid valve 4 is closed, and the first moisture analyzer 3 stops detecting. Step 3: The second moisture analyzer 6 continuously detects the fluid. When the real-time detection value detected by the second moisture analyzer 6 is higher than 5% of its set value, and the duration of this state is greater than T2, the second solenoid valve 7 is closed, and the second moisture analyzer 6 stops detecting, and Step 1 is executed.

[0023] Specifically, T1 is usually set to 10 minutes, and T2 is usually set to 2 minutes, but these can be adjusted according to actual conditions. Naturally, the settings for the first moisture analyzer 3 and the second moisture analyzer 6 also need to be reasonably set based on actual operating conditions, fluid conditions, environmental conditions, and other factors affecting the moisture content value. The first solenoid valve 4 and the second solenoid valve 7 are valves whose opening degree can be adjusted by the controller.

[0024] In summary, the technical solution of this utility model can fully and effectively achieve the aforementioned objectives. Furthermore, the structure and functional principles of this utility model have been fully verified in the embodiments, achieving the expected effects and objectives. Without departing from the principles and essence of this utility model, various changes or modifications can be made to the embodiments. Therefore, this utility model includes all substitutions within the scope mentioned in the patent application claims, and any equivalent changes made within the scope of this patent application are within the scope of the patent application.

Claims

1. A moisture detection system, comprising a sampling port (1) and a controller, characterized in that: The sampling port (1) is connected to a first moisture analyzer (3) through a first channel (2), and a first solenoid valve (4) is provided on the first channel (2); the sampling port (1) is connected to a second moisture analyzer (6) through a second channel (5), and a second solenoid valve (7) is provided on the second channel (5); the measurement range of the first moisture analyzer (3) is greater than that of the second moisture analyzer (6), and the detection accuracy of the second moisture analyzer (6) is higher than that of the first moisture analyzer (3); The first moisture analyzer (3), the first solenoid valve (4), the second moisture analyzer (6) and the second solenoid valve (7) are electrically connected to the controller.

2. The moisture detection system according to claim 1, characterized in that: The first moisture analyzer (3) includes a housing (301) and a control host (302). The housing (301) is provided with an input interface (303) and an vent (304). The housing (301) is provided with a filter (305) and a detection component (306). The inlet of the filter (305) is connected to the input interface (303), the outlet of the filter (305) is connected to the vent (304) through a vent pipe (307), the filter (305) is connected to the inlet of the detection component (306) through a detection pipe (308), and the filter (305) is connected to the outlet of the detection component (306) through a discharge pipe (309). The detection pipe (308) is connected in series with a first pressure gauge (310) and a first flow meter (311), and the vent pipe (307) is equipped with a second flow meter (312). The detection component (306), the first pressure gauge (310), the first flow meter (311), and the second flow meter (312) are electrically connected to the control host (302), and the control host (302) is electrically connected to the controller.

3. The moisture detection system according to claim 2, characterized in that: The enclosure (301) is provided with a first explosion-proof junction box (313) for wire connection.

4. The moisture detection system according to claim 2, characterized in that: The flow rate of the detection pipe (308) is controlled at 400 ml / min, and the flow rate of the vent pipe (307) is 5-10 times that of the detection pipe (308).

5. The moisture detection system according to claim 2, characterized in that: The enclosure (301) is a cabinet-type structure, and an observation window is provided on the enclosure (301).

6. The moisture detection system according to claim 2, characterized in that: The control host (302) is electrically connected to a display screen (314).

7. The moisture detection system according to claim 1, characterized in that: The second moisture analyzer (6) includes a housing (601) and an analysis host (602). The housing (601) is provided with an input port (603) and an output port (604). Inside the housing (601), and from the input port (603) to the output port (604), a third solenoid valve (605), a second pressure gauge (606), a fourth solenoid valve (607), a thermometer (608), a fifth solenoid valve (609), a third flow meter (610), and a detection probe (611) are connected in series. The housing (601) is equipped with a heater (612). The heater (612), the third solenoid valve (605), the second pressure gauge (606), the fourth solenoid valve (607), the thermometer (608), the fifth solenoid valve (609), the third flow meter (610), and the detection probe (611) are electrically connected to the analysis host (602). The analysis host (602) is electrically connected to the controller.

8. The moisture detection system according to claim 7, characterized in that: The housing (601) is provided with a second explosion-proof junction box (613) for wire connection.

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