Rapid detection device for multiple pollutants in flue gas emission

Abstract

The utility model discloses a flue gas emission multi-pollutant rapid detection device which comprises a flue gas pipe and a detector, a first pipeline is arranged on the side wall of the flue gas pipe, a first air valve assembly is arranged on the first pipeline, the other end of the first pipeline is communicated with a second pipeline, the other end of the second pipeline is in a sealed state, and the detector is arranged on the first pipeline. An inner pipe is arranged in the second pipeline, a preheating layer is formed between the inner pipe and the second pipeline, a second air valve assembly acting on the inner pipe is arranged on the second pipeline, the end, away from the first pipeline, of the second pipeline communicates with a communicating pipe, and a detector is arranged at the tail end of the communicating pipe. According to the utility model, the preheating layer is arranged between the second pipeline and the inner pipe, and the inner pipe is heated through the preheating layer before the flue gas is detected, so that the phenomenon that water vapor in the flue gas is in contact with the cold pipe in a low-temperature environment and is condensed to influence a flue gas detection result is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke detection, in particular to a device for rapid detection of multiple pollutants in smoke emission. Background Art

[0002] Flue gas analyzer is a device that uses electrochemical sensors to continuously analyze and measure the flue gas content of CO2, CO, NOx, SO2, etc. It is mainly used for pollution emissions from small fuel and gas boilers or environmental monitoring near pollution sources.

[0003] When detecting multiple pollutants in flue gas, the detection device needs to be connected to the flue pipe. A branch pipe for connecting the detection device is provided on the flue pipe. The length of the branch pipe is generally long. In the low temperature environment in winter, the temperature of the branch pipe close to the flue pipe is generally high, while the position far from the flue pipe will become cold in the low temperature environment. When the flue gas enters the low temperature section of the branch pipe during flue gas detection, the water vapor in the flue gas will condense when it encounters cold, thereby affecting the flue gas detection effect. For this reason, a rapid detection device for multiple pollutants in flue gas emissions is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a device for rapid detection of multiple pollutants in flue gas emissions, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for rapid detection of multiple pollutants in flue gas emissions, comprising a flue gas pipe and a detector, a No. 1 pipe is arranged on the side wall of the flue gas pipe, a first air valve assembly is arranged on the No. 1 pipe, the other end of the No. 1 pipe is connected with the No. 2 pipe, the other end of the No. 2 pipe is in a sealed state, an inner pipe is arranged inside the No. 2 pipe, a preheating layer is formed between the inner pipe and the No. 2 pipe, a second air valve assembly acting on the inner pipe is arranged on the No. 2 pipe, an end of the No. 2 pipe away from the No. 1 pipe is connected with a connecting pipe, and a detector is arranged at the end of the connecting pipe.

[0006] As a further preferred embodiment of the present technical solution, the No. 2 pipeline is fixedly connected to the inner pipe via three connecting plates, and the three connecting plates are distributed in a ring array.

[0007] As a further preferred embodiment of the present technical solution, the first air valve assembly includes a No. 1 valve stem, a first fixed sleeve and a first sealing plate, the first fixed sleeve is sleeved on the outer surface of the No. 1 pipe and fixedly connected to the No. 1 pipe, the No. 1 valve stem is rotatably mounted on the first fixed sleeve, the No. 1 valve stem penetrates the No. 1 pipe and is rotatably connected to the No. 1 pipe, and the No. 1 valve stem is fixedly connected to the inside of the No. 1 pipe with a first sealing plate.

[0008] As a further preferred embodiment of the present technical solution, the diameter of the first sealing plate is equal to the inner diameter of the No. 1 pipeline.

[0009] As a further preferred embodiment of the present technical solution, the second air valve assembly includes a No. 2 valve stem, a second fixed sleeve and a second sealing plate, the second fixed sleeve is sleeved on the outer surface of the No. 2 pipe and fixedly connected to the No. 2 pipe, the No. 2 valve stem is rotatably mounted on the second fixed sleeve, the No. 2 valve stem passes through the No. 2 pipe and the inner pipe and is rotatably connected to the No. 2 pipe and the inner pipe respectively, and the No. 2 valve stem is fixedly connected to the inner pipe with a second sealing plate.

[0010] As a further preferred embodiment of the present technical solution, the diameter of the second sealing plate is equal to the inner diameter of the inner tube.

[0011] As a further preferred embodiment of the present technical solution, a display screen and a control panel are provided on the detector, and an air pump is provided on the connecting pipe.

[0012] The utility model provides a device for rapid detection of multiple pollutants in flue gas emissions, which has the following beneficial effects:

[0013] The utility model provides a preheating layer between the second pipe and the inner pipe. Before detecting the smoke, the inner pipe is heated by the preheating layer to avoid condensation due to water vapor in the smoke contacting the cold pipe in a low temperature environment, thereby affecting the smoke detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 Schematic diagram of some structures;

[0017] Figure 4 It is a schematic diagram of the dissection of the No. 2 pipeline 4 in the present utility model;

[0018] In the figure: 1. flue gas pipe; 2. detector; 3. pipe No. 1; 4. pipe No. 2; 5. connecting pipe; 6. valve stem No. 1; 7. valve stem No. 2; 8. air pump; 9. inner pipe; 10. connecting plate; 11. first fixed sleeve; 12. first sealing plate; 13. second fixed sleeve; 14. second sealing plate; 15. preheating layer; 16. display screen; 17. control panel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a device for rapid detection of multiple pollutants in flue gas emissions includes a flue gas pipe 1 and a detector 2. A No. 1 pipe 3 is arranged on the side wall of the flue gas pipe 1, and a first air valve assembly is arranged on the No. 1 pipe 3. The other end of the No. 1 pipe 3 is connected with a No. 2 pipe 4, and the other end of the No. 2 pipe 4 is in a sealed state. An inner pipe 9 is arranged inside the No. 2 pipe 4, and a preheating layer 15 is formed between the inner pipe 9 and the No. 2 pipe 4. A second air valve assembly acting on the inner pipe 9 is arranged on the No. 2 pipe 4, and one end of the No. 2 pipe 4 away from the No. 1 pipe 3 is connected with a connecting pipe 5, and a detector 2 is arranged at the end of the connecting pipe 5.

[0021] The No. 2 pipeline 4 and the inner pipe 9 are fixedly connected via three connecting plates 10, and the three connecting plates 10 are distributed in a ring array.

[0022] Among them, the first air valve assembly includes a No. 1 valve stem 6, a first fixed sleeve 11 and a first sealing plate 12. The first fixed sleeve 11 is sleeved on the outer surface of the No. 1 pipe 3 and fixedly connected to the No. 1 pipe 3. The No. 1 valve stem 6 is rotatably installed on the first fixed sleeve 11. The No. 1 valve stem 6 penetrates the No. 1 pipe 3 and is rotatably connected to the No. 1 pipe 3. The No. 1 valve stem 6 is located inside the No. 1 pipe 3 and is fixedly connected with the first sealing plate 12. The diameter of the first sealing plate 12 is equal to the inner diameter of the No. 1 pipe 3.

[0023] When in use, the first valve stem 6 is rotated to drive the first sealing plate 12 to rotate, thereby controlling the unsealing state of the first pipeline 3.

[0024] Among them, the second air valve assembly includes a No. 2 valve stem 7, a second fixed sleeve 13 and a second sealing plate 14. The second fixed sleeve 13 is sleeved on the outer surface of the No. 2 pipe 4 and fixedly connected to the No. 2 pipe 4. The No. 2 valve stem 7 is rotatably mounted on the second fixed sleeve 13. The No. 2 valve stem 7 passes through the No. 2 pipe 4 and the inner pipe 9 and is rotatably connected to the No. 2 pipe 4 and the inner pipe 9 respectively. A second sealing plate 14 is fixedly connected to the No. 2 valve stem 7 inside the inner pipe 9, and the diameter of the second sealing plate 14 is equal to the inner diameter of the inner pipe 9.

[0025] With such arrangement, the second sealing plate 14 can be rotated by rotating the second valve stem 7 to control the unsealing state of the inner tube 9 .

[0026] The detector 2 is provided with a display screen 16 and a control panel 17 .

[0027] The detection data can be quickly read through the display screen 16 , and the detector 2 can be controlled through the control panel 17 .

[0028] Wherein, an air pump 8 is arranged on the connecting pipe 5 .

[0029] After opening the first gas valve assembly and the second gas valve assembly, the air pump 8 is started to quickly draw the smoke toward the detector 2, thereby improving the efficiency of smoke detection.

[0030] The utility model provides a device for rapid detection of multiple pollutants in flue gas emissions, and the specific working principle is as follows:

[0031] Rotating the No. 1 valve stem 6 drives the first sealing plate 12 to rotate, so that the interior of the No. 1 pipe 3 is in a connected whole. At this time, the inner pipe 9 is in a sealed state. The flue gas in the flue pipe 1 will enter the preheating layer 15 of the No. 2 pipe 4 from the No. 1 pipe 3 and heat the inner pipe 9. When the flue gas needs to be detected, the connecting pipe 5 is installed at the end of the inner pipe 9, and the No. 1 valve stem 6 is rotated to drive the first sealing plate 12 to rotate, so that the inner pipe 9 is in an open state. At this time, the air pump 8 is turned on to quickly draw the flue gas in the flue pipe 1 into the inner pipe 9. At this time, since the inner pipe 9 has been preheated, the flue gas will not condense when entering the inner pipe 9. Then the flue gas will be transmitted to the detector 2 through the connecting pipe 5, and the detector 2 will quickly detect various pollutants in the flue gas. It should be noted that the connecting pipe 5 is a pipe that is installed only when it is detected, and is not exposed to the external low temperature environment for a long time. Whether it is preheated depends on the state when it is used, which is not within the scope of discussion of this application.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for rapid detection of multiple pollutants in flue gas emissions, comprising a flue gas pipe (1) and a detector (2), characterized in that: A No. 1 pipe (3) is arranged on the side wall of the flue gas pipe (1), a first gas valve assembly is arranged on the No. 1 pipe (3), the other end of the No. 1 pipe (3) is connected to a No. 2 pipe (4), the other end of the No. 2 pipe (4) is in a sealed state, an inner pipe (9) is arranged inside the No. 2 pipe (4), a preheating layer (15) is formed between the inner pipe (9) and the No. 2 pipe (4), a second gas valve assembly acting on the inner pipe (9) is arranged on the No. 2 pipe (4), one end of the No. 2 pipe (4) away from the No. 1 pipe (3) is connected to a connecting pipe (5), and a detector (2) is arranged at the end of the connecting pipe (5).

2. A device for rapid detection of multiple pollutants in flue gas emissions according to claim 1, characterized in that: The No. 2 pipeline (4) and the inner pipe (9) are fixedly connected via three connecting plates (10), and the three connecting plates (10) are distributed in a ring array.

3. A device for rapid detection of multiple pollutants in flue gas emissions according to claim 2, characterized in that: The first gas valve assembly comprises a No. 1 valve stem (6), a first fixed sleeve (11) and a first sealing plate (12); the first fixed sleeve (11) is sleeved on the outer surface of the No. 1 pipe (3) and is fixedly connected to the No. 1 pipe (3); the No. 1 valve stem (6) is rotatably mounted on the first fixed sleeve (11); the No. 1 valve stem (6) penetrates the No. 1 pipe (3) and is rotatably connected to the No. 1 pipe (3); the No. 1 valve stem (6) is fixedly connected to the interior of the No. 1 pipe (3) and is located on the No. 1 valve stem (6).

4. A device for rapid detection of multiple pollutants in flue gas emissions according to claim 3, characterized in that: The diameter of the first sealing plate (12) is equal to the inner diameter of the No. 1 pipeline (3).

5. The device for rapid detection of multiple pollutants in flue gas emissions according to claim 1, characterized in that: The second gas valve assembly comprises a No. 2 valve stem (7), a second fixed sleeve (13) and a second sealing plate (14); the second fixed sleeve (13) is sleeved on the outer surface of the No. 2 pipe (4) and fixedly connected to the No. 2 pipe (4); the No. 2 valve stem (7) is rotatably mounted on the second fixed sleeve (13); the No. 2 valve stem (7) passes through the No. 2 pipe (4) and the inner pipe (9) and is rotatably connected to the No. 2 pipe (4) and the inner pipe (9) respectively; the No. 2 valve stem (7) is fixedly connected to the inner pipe (9) and is located inside the inner pipe (9).

6. A device for rapid detection of multiple pollutants in flue gas emissions according to claim 5, characterized in that: The diameter of the second sealing plate (14) is equal to the inner diameter of the inner tube (9).

7. The device for rapid detection of multiple pollutants in flue gas emissions according to claim 1, characterized in that: The detector (2) is provided with a display screen (16) and a control panel (17), and the connecting pipe (5) is provided with an air pump (8).

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