Device for monitoring flue gas sampling flow
By introducing an adjustable connecting bracket and arm ring system into the flue gas flow monitoring device, the problem of the existing device being unable to be fixed for monitoring after being removed from the user's hand has been solved, thus achieving portability and stability of the equipment and improving monitoring efficiency and operator convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HUACHUANG TAIBO ENERGY CONSERVATION & ENVIRONMENTAL PROTECTION TECH RES INST
- Filing Date
- 2025-06-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing flue gas flow monitoring devices cannot be safely suspended or stably placed on the work platform when monitoring is temporarily interrupted, resulting in discontinuous monitoring data and increased burden on operators.
A device was designed that includes a flue gas flow monitor, a sampling probe, a connecting bracket, a movable shaft, an arm ring, and an adjustment belt. The device is fixed to the operator's arm by the arm ring, and the movable shaft and connecting bracket enable the device to have an adjustable angle and a detachable bracket, allowing the device to perform stable monitoring when not held by hand.
It enables flexible operation of the equipment during mobile detection and stable placement during fixed-point monitoring, improving work efficiency, freeing up the operator's hands, and expanding the applicable scenarios in complex environments.
Smart Images

Figure CN224151786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue gas flow monitoring technology, specifically a device for monitoring flue gas sampling flow. Background Technology
[0002] Flue gas sampling flow monitoring devices are key equipment in the field of environmental monitoring, primarily used to track the concentration and total amount of pollutants in industrial flue gas in real time. In high-polluting industries such as thermal power plants and steel mills, these devices ensure the representativeness of the collected gas samples by precisely controlling the sampling flow rate, providing data support for environmental protection departments to verify the compliance of enterprises' emissions. Their core value lies in transforming flowing flue gas into quantifiable environmental indicators, serving as both a technological tool for enterprises to fulfill their social responsibility and an important basis for government environmental supervision, thus having practical significance for preventing and controlling air pollution and promoting green production.
[0003] Currently, there are two main types of flue gas flow sampling and detection devices: fixed large-scale monitoring equipment and portable small detectors. Fixed equipment is usually installed at specific locations on chimneys or pipelines for long-term continuous monitoring, while portable equipment is mainly used for temporary, mobile on-site detection operations.
[0004] Existing technologies have the following shortcomings: Small-scale detectors exhibit significant ergonomic flaws in practical operation—because both the main unit and the sampling probe must be held in hand, monitoring personnel must occupy both hands during sampling, making it impossible to perform other operations simultaneously. More significantly, these devices lack a reasonable ergonomic design for temporary pauses; when monitoring personnel need to temporarily interrupt monitoring, the equipment cannot be safely suspended or stably placed on the work platform. During long-term monitoring at fixed points, the operator must hold the device continuously; if they release their grip, the detector will tip over or slip, severely affecting the continuity and accuracy of monitoring data. This design flaw not only increases the workload but also hinders the improvement of monitoring efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies that are inconvenient for temporary placement, this invention provides a device for monitoring flue gas sampling flow rate, solving the current problem of not being able to monitor in a fixed location after being removed from hand.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for monitoring flue gas sampling flow rate, comprising a flue gas flow rate monitor and a sampling probe for sampling, characterized in that: a connecting bracket is provided at the lower end of the flue gas flow rate monitor, a movable shaft is rotatably provided inside the connecting bracket, positioning clamps are provided on both sides of the connecting bracket, and a connector is provided on the back of the flue gas flow rate monitor.
[0007] An arm ring is provided inside the connecting bracket.
[0008] An adjustment belt is provided on the inner side of the arm ring 11.
[0009] As a preferred embodiment of the present invention, the connecting bracket has a transverse opening at the position where it is connected to the movable shaft. This opening divides the connecting bracket into upper and lower parts, which are connected by the movable shaft.
[0010] As a preferred technical solution of this utility model, a filter and a condensate return pipe are provided on the side of the flue gas flow monitor 1.
[0011] As a preferred technical solution of this utility model, a fixing frame for placing a sampling probe is provided on the side of the flue gas flow monitor.
[0012] As a preferred technical solution of this utility model, the positioning clip fixes the connecting bracket into a whole through the bottom hook structure.
[0013] As a preferred technical solution of this utility model, the connecting member is an embedded slider, and the embedded slider 7 is slidably connected to the groove at the top of the connecting bracket.
[0014] As a preferred technical solution of this utility model, a magnetic block is provided on the back of the flue gas flow monitor and on the top of the connecting bracket.
[0015] Compared with the prior art, this utility model provides a device for monitoring flue gas sampling flow rate, which has the following beneficial effects:
[0016] A device for monitoring flue gas sampling flow rate includes an embedded slider, a connecting bracket, a movable shaft, a positioning clamp, an arm ring, and an adjusting belt. When using the flue gas flow monitor, the operator wears the arm ring on their right forearm and adjusts the tightness using the adjusting belt. The operator can easily pick up the flue gas flow monitor with their left hand by sliding it, while their right hand holds the sampling probe to take samples. The monitoring data is then obtained through the flue gas flow monitor. If the operator needs to retrieve other items while sampling, they can temporarily store the flue gas flow monitor on the connecting bracket on the arm ring. Alternatively, the connecting bracket can be adjusted by the movable shaft, and the arm ring can be removed and placed on the ground, creating a stable fixed-point monitoring frame. The flue gas flow monitor can then be connected to the connecting bracket for remote, stationary monitoring.
[0017] Through the aforementioned setup and process, this device, compared to existing small flue gas flow monitors, achieves two revolutionary usage modes by integrating a multi-functional armband and an adjustable connection bracket system: firstly, it can be worn, fixing the main unit to the operator's arm, freeing their hands for easy mobile sampling; secondly, through the rapid combination of the movable shaft and the bracket, it can be temporarily set up as an independent monitoring stand. This dual-mode design gives the device both the portability of being ready to use and the stability of monitoring away from the operator—it can maintain flexible operation during mobile detection and be stably placed during fixed-point monitoring. Compared to the limitations of traditional equipment that must be held handheld throughout the entire process, the new device significantly improves operational efficiency, enabling a single person to complete both mobile sampling and fixed-point monitoring tasks, effectively expanding its applicable scenarios in complex industrial environments. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram showing the location and structure of the charging port in this utility model;
[0020] Figure 3 This is a schematic diagram of the overall structure of the connecting bracket of this utility model when it is flipped into the bracket state;
[0021] Figure 4 This is a schematic diagram of the embedded slider mounting position structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the overall structure of the arm ring and connecting bracket of this utility model.
[0023] In the diagram: 1. Flue gas flow monitor; 2. Sampling probe; 3. Mounting bracket; 4. Charging port; 5. Filter; 6. Condensate return pipe; 7. Embedded slider; 8. Connecting bracket; 9. Movable shaft; 10. Positioning clamp; 11. Arm ring; 12. Adjusting belt. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-5In this embodiment: a device for monitoring flue gas sampling flow includes a flue gas flow monitor 1 and a sampling probe 2 for sampling. A connecting bracket 8 is provided at the lower end of the flue gas flow monitor 1. A movable shaft 9 is rotatably provided inside the connecting bracket 8. When the connecting bracket 8 rotates through the movable shaft 9, it can control the orientation of the flue gas flow monitor 1 and form a fixed bracket, which can meet the fixed point monitoring requirements without hand-holding.
[0026] The connecting bracket 8 has a horizontal opening at the position where it connects with the movable shaft 9. This opening divides the connecting bracket 8 into upper and lower parts, which are connected by the movable shaft 9.
[0027] To ensure that the flue gas flow monitor 1 can monitor the flue gas flow smoothly, a filter 5 and a condensate return pipe 6 are installed on the side of the flue gas flow monitor 1. This allows the high-temperature flue gas to be sampled and filtered before being detected, preventing the flue gas flow monitor 1 from becoming clogged.
[0028] To make the flue gas flow sensor 1 easy to carry, an embedded slider 7 is provided on the back of the flue gas flow monitor 1 for quick connection with the connecting bracket 8. An arm ring 11 is provided inside the lower end of the connecting bracket 8, and an adjustment strap 12 is provided on the inner side of the arm ring 11. The arm ring 11 and the adjustment strap 12 can be worn on the forearm, so that the flue gas flow monitor 1 can be bound to the forearm when not in use, freeing up one hand. A fixing bracket 3 is provided on the side of the flue gas flow monitor 1 for placing the sampling probe 2. The fixing bracket 3 means that the sampling probe 2 does not need to be pulled out when not in use, further facilitating the operator's use.
[0029] The embedded slider 7 is slidably connected to the groove at the top of the connecting bracket 8.
[0030] In order to keep the angle of the connecting bracket 8 and the flue gas flow monitor 1 connected to the upper end fixed when not in use, positioning clips 10 are provided on both sides of the connecting bracket 8. The positioning clips 10 fix the connecting bracket 8 into a whole through the bottom hook structure to prevent the flue gas flow monitor 1 from falling off due to the rotation of the movable shaft 9.
[0031] In this embodiment, the flue gas flow monitor 1 is worn on the forearm via the arm ring 11 and the adjustment belt 12. The flue gas flow monitor 1 can be quickly installed and removed by sliding the embedded slider 7 on the upper end of the connecting bracket 8. The connecting bracket 8, which rotates via the movable shaft 9, can transform itself into a bracket form when a fixed position monitoring is required.
[0032] As another connection method for quick assembly and disassembly of the flue gas flow monitor 1, a magnetic block is set on the back of the flue gas flow monitor 1 and the top of the connecting bracket 8.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A device for monitoring the flow of a flue gas sample, comprising a flue gas flow monitor (1) and a sampling probe (2) for sampling, characterized in that: A connecting bracket (8) is provided at the lower end of the flue gas flow monitor (1). A movable shaft (9) is rotatably provided inside the connecting bracket (8). Positioning clips (10) are provided on both sides of the connecting bracket (8). A connector is provided on the back of the flue gas flow monitor (1). An arm ring (11) is provided inside the connecting bracket (8); An adjustment belt (12) is provided on the inner side of the arm ring (11).
2. A device for monitoring the flow of a flue gas sample according to claim 1, characterised in that: The connecting bracket (8) has a transverse opening inside at the position where it is connected to the movable shaft (9). This opening divides the connecting bracket (8) into upper and lower parts, which are connected by the movable shaft (9).
3. A device for monitoring the flow of a flue gas sample according to claim 1, wherein: The flue gas flow monitor (1) is equipped with a filter (5) and a condensate return pipe (6) on its side.
4. A device for monitoring the flow of a flue gas sample according to claim 3, characterised in that: The flue gas flow monitor (1) is provided with a mounting bracket (3) on its side for placing the sampling probe (2).
5. A device for monitoring the flow of a flue gas sample according to claim 2, wherein: The positioning clip (10) fixes the connecting bracket (8) into a whole through the bottom hook structure.
6. A device for monitoring the flow of a flue gas sample according to claim 1, wherein: The connector is an embedded slider (7), which is slidably connected to the groove at the top of the connecting bracket (8).
7. A device for monitoring the flow of a flue gas sample according to claim 5, wherein: A magnetic block is provided on the back of the flue gas flow monitor (1) and on the top of the connecting bracket (8).