CEMS grid sampling blockage early warning device and method

Abstract

The invention discloses a CEMS (Continuous Emission Monitoring System) grid sampling blockage early warning device, which comprises a detection unit, a control unit and an early warning unit, the sampling part is arranged on the detection unit, a sealing probe rod is arranged in the sampling part, and a sampling hole, an abutting spring and a sealing ring corresponding to the sealing probe rod are arranged on the sampling part; a sealing plunger corresponding to the sealing ring is arranged at one end of the sealing probe rod, and a sealing gasket located in the branch pipe is arranged at the other end of the sealing probe rod. A monitoring probe is further arranged at the end, close to the sealing gasket, of the sealing feeler lever and used for detecting the temperature and flow in the branch pipe. By means of the structural arrangement, the flow of each section of the main pipe can be obtained according to the monitoring probe, reasonable judgment conditions are designed according to the actual site situation, whether the pipeline is unsmooth in circulation or blocked or not is judged, and the blocked point is judged.

Description

Technical Field

[0001] The present invention relates to the technical field of early warning equipment, and in particular to a CEMS grid sampling blockage early warning device and method. Background Art

[0002] CEMS (Continuous Emission Monitoring System) is a system used to monitor the concentration and total amount of gaseous pollutants (such as SO2, NOx, etc.) and particulate matter emitted by air pollution sources. The system usually consists of a gaseous pollutant monitoring subsystem, a particulate matter monitoring subsystem, a flue gas parameter monitoring subsystem, and a data acquisition, processing and communication subsystem to ensure the accuracy and real-time nature of the monitoring data.

[0003] When part of the existing CEMS grid sampling pipeline is blocked, or the sampling main pipe is not flowing smoothly but not completely blocked, the pipeline blockage cannot be discovered in time. When it is discovered, the pipeline is already completely blocked, making it difficult to clean. At the same time, due to the blockage of part of the pipeline, the sampling is incomplete, which reduces the accuracy of the measuring point. In view of these shortcomings, a CEMS grid sampling blockage warning device and method are proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a CEMS grid sampling blockage warning device and method to address the above-mentioned deficiencies.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a CEMS grid sampling blockage warning device, comprising:

[0006] A detection unit, wherein the detection unit is arranged on the branch pipe;

[0007] A sampling part, wherein the sampling part is arranged on the detection unit, a sealing probe rod is arranged inside the sampling part, and a sampling hole, a resisting spring and a sealing ring corresponding to the sealing probe rod are arranged on the sampling part;

[0008] A sealing plunger corresponding to the sealing ring is arranged at one end of the sealing probe rod, and a sealing gasket located inside the branch pipe is arranged at the other end of the sealing probe rod;

[0009] A monitoring probe is also provided at one end of the sealing probe rod close to the sealing gasket, and the monitoring probe is used to detect the temperature and flow rate inside the branch pipe.

[0010] Furthermore, the branch pipe is also provided with a flow rate warning mechanism;

[0011] The flow rate warning mechanism comprises a receiving block slidably arranged on the inner top wall of the branch pipe, and a limiting sliding groove corresponding to the receiving block is opened on the inner wall of the branch pipe;

[0012] The receiving block is provided with an induction sliding block corresponding to the limiting sliding groove;

[0013] A detection spring that resists the sensing slider is arranged in the limit sliding groove;

[0014] The limiting slide groove is also provided with a sensing strip corresponding to the sensing slider;

[0015] The sensing strip is used to determine the flow velocity inside the branch pipe according to the position of the sensing slider.

[0016] Furthermore, a control unit is also provided on the branch pipe, and the sensing slider and the sensing strip are sliding resistors;

[0017] The control unit is electrically connected to the sensor strip.

[0018] Furthermore, the sealing plunger is truncated cone-shaped;

[0019] The sealing plunger corresponds to the sealing ring.

[0020] Furthermore, a sampling hole corresponding to the sampling part is provided on the branch pipe;

[0021] The sealing gasket is used to correspond to the sampling hole to seal the sampling hole.

[0022] Furthermore, the detection unit includes two groups of fixing rings, the two groups of fixing rings are semicircular, and connecting pieces are arranged on both sides of the two groups of fixing rings;

[0023] The connecting piece is provided with fixing bolts for installing the detection unit.

[0024] Another technical solution adopted by the present invention is: an early warning method of a CEMS grid sampling blockage early warning device, comprising the following steps:

[0025] S1. Layout: Install the detection unit on the main pipe and each branch pipe;

[0026] S2. Collection: During the normal operation of the pipeline, the detection unit collects the working information of the main pipe and each branch pipe;

[0027] S3, preset, set the threshold value according to the information collected in step S2;

[0028] S4, analysis, the controller analyzes the working information corresponding to each branch pipe during the operation of the pipeline by the detection unit, and determines whether the corresponding branch pipe is blocked according to whether the working information exceeds a set threshold;

[0029] S5, early warning, the controller triggers the alarm according to the range of working information exceeding the threshold during operation.

[0030] Furthermore, the monitoring probe provided in the detection unit includes a temperature detection component and a flow detection component.

[0031] Furthermore, in step S4, the measured branch pipe is compared with the working information of other branches as a judgment condition, and two or more groups of judgment conditions are set. When the flow rate of the measured branch pipe is lower than more than half of the average flow rate of other branches, it is judged that the branch pipe section is blocked.

[0032] Furthermore, the alarm is a buzzer alarm and a light alarm, and the controller can activate one or both of them according to whether the working information exceeds the range of the threshold.

[0033] The beneficial effects of the present invention are embodied in:

[0034] The present invention, through the above-mentioned structural setting, can obtain the flow of each section on the main pipe according to the monitoring probe, and design reasonable judgment conditions according to the actual situation on site to judge whether the pipeline is not flowing smoothly or is blocked, and judge the blockage point. For each measuring point, a fixed threshold is set, and at the same time, it is compared with other measuring points as a judgment condition, and two or more groups of judgment conditions are set. After comprehensive judgment, the measured value is low, which can warn that the section of the pipeline is not flowing smoothly and needs to be cleaned in time. When the measured value of the monitoring probe is 0, the controller can receive the output signal of the monitoring probe, obtain the result according to the signal received by the controller, and send it to the alarm device. The alarm device gives a corresponding alarm according to the signal of the controller to warn that the section of the pipeline is blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A three-dimensional view of the present invention;

[0036] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0037] Figure 3 is a cross-sectional view of the present invention;

[0038] Figure 4 It is a system schematic diagram of the present invention.

[0039] In the figure:

[0040] 01. Main pipe; 02. Branch pipe;

[0041] 1. Detection unit;

[0042] 2. Sampling part; 21. Sampling hole; 22. Resistance spring; 23. Sealing ring;

[0043] 3. Flow rate warning mechanism; 31. Undertaking block; 311. Sensing slider; 32. Detection spring; 33. Sensing strip;

[0044] 4. Sealing probe rod; 41. Sealing plunger; 42. Sealing gasket; 43. Monitoring probe. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] See also Figure 1-4 The present invention discloses a CEMS grid sampling blockage warning device, comprising:

[0047] Detection unit 1, the detection unit 1 is arranged on branch pipe 02, it should be noted that, Figure 1 As shown, the detection unit 1 is also arranged on the main pipe 01 to detect the flow of the main pipe 01;

[0048] The sampling part 2 is arranged on the detection unit 1, a sealing probe rod 4 is arranged inside the sampling part 2, and a using hole 21, a resisting spring 22 and a sealing ring 23 corresponding to the sealing probe rod 4 are arranged on the sampling part 2;

[0049] A sealing plunger 41 corresponding to the sealing ring 23 is disposed at one end of the sealing probe rod 4, and a sealing gasket 42 located inside the branch pipe 02 is disposed at the other end of the sealing probe rod 4;

[0050] A monitoring probe 43 is also provided at one end of the sealing probe rod 4 close to the sealing gasket 42 , and the monitoring probe 43 is used to detect the internal temperature and flow of the branch pipe 02 .

[0051] In the present application, through the above-mentioned structural setting, the flow of each section on the main pipe can be obtained according to the monitoring probe 43, and reasonable judgment conditions can be designed according to the actual situation on site to judge whether the pipeline is not flowing smoothly or blocked, and to judge the blockage point. For each measuring point, a fixed threshold is set, and at the same time, it is compared with other measuring points as a judgment condition, and two or more groups of judgment conditions are set. If the flow is low after judgment, it can be warned that the section of the pipeline is not flowing smoothly and needs to be cleaned in time. When the flow of the monitoring probe 43 is 0, the controller can receive the output signal of the monitoring probe 43, and the result is sent to the alarm device according to the signal received by the controller. The alarm device gives a corresponding alarm according to the signal of the controller, and warns that the section of the pipeline is blocked.

[0052] It should be noted that the main pipe 01 and the branch pipe 02 are also provided with a flow rate warning mechanism 3;

[0053] The flow rate warning mechanism 3 includes a receiving block 31 slidably arranged on the inner top wall of the branch pipe 02, and a limiting sliding groove corresponding to the receiving block 31 is opened on the inner wall of the branch pipe 02;

[0054] The receiving block 31 is provided with a sensing slider 311 corresponding to the limiting slide groove;

[0055] A detection spring 32 is arranged in the limit sliding groove to resist the sensing slider 311;

[0056] The limiting slide groove is also provided with a sensing bar 33 corresponding to the sensing slider 311;

[0057] The sensing strip 33 is used to determine the flow velocity inside the branch pipe 02 according to the position of the sensing slider 311 .

[0058] Through the above-mentioned structural setting, the receiving block 31 can be in a compressed state under the push of the airflow inside the pipeline and be located in a predetermined interval. When blockage occurs inside the pipeline, the airflow inside the blocked pipeline decreases, while the airflow in other pipelines accelerates. The force exerted on the receiving block 31 and the elastic force balance of the detection spring 32 change, causing the sensing slider 311 to shift, thereby contacting different positions of the sensing strip 33.

[0059] Furthermore, a control unit is also provided on the branch pipe 02, and the sensing slider 311 and the sensing strip 33 are sliding resistors;

[0060] The control unit is electrically connected to the sensor bar 33 .

[0061] Through the above-mentioned structural arrangement, the control unit is used to receive the triggered position of the sensor strip 33, thereby determining the blockage situation and triggering the corresponding alarm device.

[0062] It is easy to imagine that the sealing plunger 41 is in the shape of a truncated cone;

[0063] The sealing plunger 41 corresponds to the sealing ring 23 .

[0064] It should be noted that the branch pipe 02 is provided with a sampling hole corresponding to the sampling part 2;

[0065] The sealing gasket 42 corresponds to the sampling hole to seal the sampling hole. Through the above-mentioned structural setting, during the sampling process, the sampling probe can be inserted into the sampling hole 21, and the sealing probe 4 can be pushed to be compressed to conduct the sampling part 2. When not sampling, the sealing of the pipeline can be guaranteed.

[0066] In the present application, the detection unit 1 includes two sets of fixing rings, the two sets of fixing rings are semicircular, and connecting pieces are arranged on both sides of the two sets of fixing rings;

[0067] The connecting piece is provided with fixing bolts for installing the detection unit 1 .

[0068] Another technical solution adopted by the present invention is: an early warning method of a CEMS grid sampling blockage early warning device, comprising the following steps:

[0069] S1. Layout: Install the detection unit 1 on the main pipe 01 and each branch pipe 02;

[0070] S2, collection, during the normal operation of the pipeline, the detection unit 1 collects the working information of the main pipe 01 and each branch pipe 02;

[0071] S3, preset, set the threshold value according to the information collected in step S2;

[0072] S4, analysis, the controller analyzes the working information corresponding to each branch pipe 02 during the operation of the pipeline by the detection unit 1, and determines whether the corresponding branch pipe 02 is blocked according to whether the working information exceeds a set threshold;

[0073] S5, early warning, the controller triggers the alarm according to the range of working information exceeding the threshold during operation.

[0074] It should be further explained that the monitoring probe 43 provided in the detection unit 1 includes a temperature detection component and a flow detection component.

[0075] It is further easy to think that in the step S4, the working information of the tested branch pipe 02 is compared with that of other branches 02 as a judgment condition, and two or more groups of judgment conditions are set. When the flow rate of the tested branch pipe 02 is lower than more than half of the average flow rate of other branches 02, it is judged that the section of branch pipe 02 is blocked. It should be added that the above comparison value can adjust different threshold ranges according to the actual needs of different sites.

[0076] Finally, it should be noted that the alarms are a buzzer alarm and a light alarm. The controller can activate one or both of them according to the range of working information exceeding the threshold. Specifically, when blockage occurs, only one of the buzzer alarm and the light alarm can be activated to alarm. When there is complete blockage, that is, when the detection unit 1 obtains that the flow rate inside the pipeline is 0, all of them can be activated to alarm.

[0077] As an improvement on the grid sampling device, the device helps the grid sampling device to detect poor circulation in time, ensures the normal and stable operation of the grid sampling device, and improves the accuracy of CEMS flue gas measurement.

[0078] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0079] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0080] In addition, "plurality" means two or more.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A CEMS grid sampling blockage warning device, characterized in that: include: A detection unit (1), wherein the detection unit (1) is arranged on the branch pipe (02); A sampling part (2), the sampling part (2) being arranged on the detection unit (1), a sealing probe rod (4) being arranged inside the sampling part (2), and a sampling hole (21), a resisting spring (22) and a sealing ring (23) corresponding to the sealing probe rod (4) being arranged on the sampling part (2); One end of the sealing probe rod (4) is provided with a sealing plunger (41) corresponding to the sealing ring (23), and the other end of the sealing probe rod (4) is provided with a sealing gasket (42) located inside the branch pipe (02); A monitoring probe (43) is also provided at one end of the sealing probe rod (4) close to the sealing gasket (42), and the monitoring probe (43) is used to detect the internal temperature and flow rate of the branch pipe (02).

2. According to claim 1, a CEMS grid sampling blockage warning device is characterized in that: The branch pipe (02) is also provided with a flow rate warning mechanism (3); The flow rate warning mechanism (3) comprises a receiving block (31) slidably arranged on the inner top wall of the branch pipe (02), and a limiting sliding groove corresponding to the receiving block (31) is provided on the inner wall of the branch pipe (02); The receiving block (31) is provided with a sensing sliding block (311) corresponding to the limiting sliding groove; The limiting slide groove is provided with detection springs (32) that resist the two ends of the sensing slider (311); A sensing strip (33) corresponding to the sensing slider (311) is also arranged in the limiting slide groove; The sensing strip (33) is used to determine the flow velocity inside the branch pipe (02) according to the position of the sensing slider (311).

3. According to claim 2, a CEMS grid sampling blockage warning device is characterized in that: The branch pipe (02) is also provided with a control unit, and the sensing slider (311) and the sensing strip (33) are sliding resistors; The control unit is electrically connected to the sensing strip (33).

4. The CEMS grid sampling blockage warning device according to claim 1, characterized in that: The sealing plunger (41) is in the shape of a truncated cone; The sealing plunger (41) corresponds to the sealing ring (23).

5. The CEMS grid sampling blockage warning device according to claim 1, characterized in that: The branch pipe (02) is provided with a sampling hole corresponding to the sampling portion (2); The sealing gasket (42) corresponds to the sampling hole to seal the sampling hole.

6. The CEMS grid sampling blockage warning device according to claim 1, characterized in that: The detection unit (1) comprises two sets of fixing rings, the two sets of fixing rings are semicircular, and both sides of the two sets of fixing rings are provided with connecting pieces; The connecting piece is provided with fixing bolts for installing the detection unit (1).

7. The early warning method of the CEMS grid sampling blockage early warning device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Layout: installing a detection unit (1) on the main pipe (01) and each branch pipe (02); S2, collection, during the normal operation of the pipeline, the detection unit (1) collects the working information of the main pipe (01) and each branch pipe (02); S3, preset, set the threshold value according to the information collected in step S2; S4, analysis, analyzing, by means of a controller, working information corresponding to each branch pipe (02) during the operation of the pipeline by the detection unit (1), and judging whether the corresponding branch pipe (02) is blocked according to whether the working information exceeds a set threshold value; S5, early warning, the controller triggers the alarm according to the range of working information exceeding the threshold during operation.

8. The early warning method of the CEMS grid sampling blockage early warning device according to claim 7, characterized in that: The monitoring probe (43) provided in the detection unit (1) comprises a temperature detection component and a flow detection component.

9. The early warning method of the CEMS grid sampling blockage early warning device according to claim 7, characterized in that: In step S4, the working information of the tested branch pipe (02) is compared with that of other branch pipes (02) as a judgment condition, and two or more groups of judgment conditions are set. When the flow rate of the tested branch pipe (02) is lower than more than half of the average flow rate of other branch pipes (02), it is judged that the branch pipe (02) is blocked.

10. The early warning method of the CEMS grid sampling blockage early warning device according to claim 7, characterized in that: The alarm is a buzzer alarm and a light alarm, and the controller can activate one or both of them according to whether the working information exceeds the range of the threshold.

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