Boiler flue gas sampling and detecting device

Abstract

The utility model discloses a boiler flue gas sampling and detecting device, which relates to the technical field of boiler flue gas detection, and is provided with a connecting mechanism, a movable piston is arranged in each insertion pipe of the connecting mechanism to block the insertion pipe, and when the insertion pipe moves to the uppermost part, the movable piston can move to the upper part. Through cooperation of internal parts of the connecting mechanism, pistons in the connecting mechanism can be moved out, then the uppermost insertion pipe is opened for sampling operation, and pistons in other insertion pipes do not move and are still in a closed state, so that the situation that dust in a workshop is sucked into a detector by other insertion pipes in the sampling process to affect the detection effect is avoided; the detection device is simple in structure and convenient to use, the detection accuracy of the device is guaranteed, the adjusting mechanism is arranged, when an inclined flue pipeline of the boiler is met, the deflection angle of the insertion pipe can be adjusted through the adjusting mechanism so that the insertion pipe can be aligned with the inclined flue, then the device can adapt to flues with various placement postures, and meanwhile the application range of the device is enlarged.

Description

Technical Field

[0001] This utility model relates to the field of boiler flue gas detection technology, specifically a boiler flue gas sampling and detection device. Background Technology

[0002] Flue gas is a mixture of gases and dust, and is a major cause of air pollution in residential areas. The composition of flue gas is very complex. The gases include water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides, while the dust includes fuel ash, coal particles, oil droplets, and high-temperature pyrolysis products. Sampling devices are required for boiler flue gas detection.

[0003] Patent CN220019069U discloses a boiler flue gas sampling device. This prior art solves the problem that existing boiler flue gas detection sampling devices do not have automatic sampling function and that sampling personnel are prone to burns or respiratory infections when they are too close to the boiler, making them inconvenient for people to use.

[0004] However, there are still some shortcomings: the existing technology has multiple sampling tubes installed on the collection tube, but only one sampling tube is inserted into the boiler flue, while the other sampling tubes are in the open state. When the induced draft fan is working, the sampling tubes that are not inserted will suck in the dust around the boiler and send it into the detector, which will affect the detection results.

[0005] Therefore, those skilled in the art have proposed a boiler flue gas sampling and detection device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a boiler flue gas sampling and detection device, which solves the problems mentioned above.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a boiler flue gas sampling and detection device, including a trolley pushed by manpower, a detector mounted on the upper side of the trolley, and a duct fan connected to the detector via a pipe above the detector.

[0008] A connecting mechanism is provided above the induced draft fan. The connecting mechanism includes a collection pipe with one end open. A turntable adapted to the opening of the collection pipe is rotatably installed. Several evenly distributed insertion pipes of different sizes are installed on the side of the turntable. Interconnected arc-shaped grooves and V-shaped grooves are opened on the inner wall of the collection pipe.

[0009] A piston adapted to the insertion tube is installed inside. A telescopic rod is installed on the side of the piston. A limit plate is installed on the telescopic arm of the telescopic rod. A limit block that slides in an arc groove is installed on the side of the limit plate.

[0010] As a further technical solution of this utility model, all the ends of the telescopic rods are equipped with a rotating ring that is rotatably connected to the inner wall of the collecting pipe, and a spring is sleeved on the telescopic rod between the limiting plate and the rotating ring.

[0011] As a further technical solution of this utility model, a motor is installed on one side of the collection tube on the inner side of the mouth-shaped frame, and the driving end of the motor extends into the collection tube and is fixedly connected to the turntable.

[0012] As a further technical solution of this utility model, a main telescopic hose connected to the input end of the duct fan is also installed on the side of the collection pipe.

[0013] As a further technical solution of this utility model, the upper side of the trolley is provided with an adjustment mechanism for vertical lifting, and the adjustment mechanism includes a rectangular plate.

[0014] As a further technical solution of this utility model, a large gear is rotatably mounted on the upper side of the rectangular plate.

[0015] As a further technical solution of this utility model, a drive motor is installed on the lower side of the rectangular plate, and the drive end of the drive motor extends to the upper side of the rectangular plate and is equipped with a small gear that meshes with the large gear.

[0016] As a further technical solution of this utility model, a U-shaped frame is installed at the upper center of the large gear, and an L-shaped plate is rotatably installed between the inner surfaces of the U-shaped frame.

[0017] As a further technical solution of this utility model, a deflection motor with its drive end connected to the L-shaped plate shaft is installed on the side of the U-shaped frame.

[0018] As a further technical solution of this utility model, an auxiliary electric push rod is installed on the side of the L-shaped plate, and the telescopic arm of the auxiliary electric push rod is fixedly connected to the mouth-shaped frame.

[0019] Beneficial effects

[0020] This invention provides a boiler flue gas sampling and detection device. Compared with the prior art, it has the following advantages:

[0021] 1. A boiler flue gas sampling and detection device, comprising a connecting mechanism in which a movable piston is installed in each insertion tube to block it. When the insertion tube is moved to the top, the piston inside the connecting mechanism can be moved out through the cooperation of internal components, thereby opening the top insertion tube for sampling. The pistons in the other insertion tubes do not move and therefore do not open, ensuring that the other insertion tubes do not draw dust from the workshop into the detector during the sampling process, thus affecting the detection effect and ensuring the accuracy of the device.

[0022] 2. A boiler flue gas sampling and detection device, which is equipped with an adjustment mechanism, can adjust the deflection angle of the insertion tube when encountering an inclined flue pipe of a boiler, so as to align it with the inclined flue pipe. Thus, the device can be adapted to flues with various placement positions, increasing the applicability of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a boiler flue gas sampling and detection device.

[0024] Figure 2 This is a side view of a boiler flue gas sampling and detection device.

[0025] Figure 3 This is a schematic diagram of the connection mechanism of a boiler flue gas sampling and detection device.

[0026] Figure 4 This is a schematic diagram of the internal structure of the connection mechanism of a boiler flue gas sampling and detection device.

[0027] Figure 5 This is a schematic diagram of the collection pipe structure of a boiler flue gas sampling and detection device.

[0028] Figure 6 A schematic diagram of the adjustment mechanism of a boiler flue gas sampling and detection device.

[0029] In the diagram: 1. Trolley; 2. Connecting mechanism; 201. U-shaped frame; 202. Collection tube; 203. Turntable; 204. Insertion tube; 205. Arc groove; 206. V-groove; 207. Rotary ring; 208. Telescopic rod; 209. Piston; 210. Limiting plate; 211. Spring; 212. Limiting block; 213. Motor; 214. Main telescopic hose; 3. Adjusting mechanism; 301. Rectangular plate; 302. Large gear; 303. Drive motor; 304. Small gear; 305. U-shaped frame; 306. L-shaped plate; 307. Deflection motor; 4. Drainage fan; 5. Detector; 6. Secondary telescopic hose; 7. Main electric push rod; 8. Secondary electric push rod. Detailed Implementation

[0030] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0031] The boiler flue gas sampling and detection device disclosed herein includes:

[0032] Example 1:

[0033] like Figure 1 and Figure 2 As shown, the device includes a trolley 1 that is manually pushed, a duct fan 4 on the upper side of the trolley 1, a detector 5 above the duct fan 4, and a secondary telescopic hose 6 connected to the input end of the detector 5 at the output end of the duct fan 4. The user moves the device by pushing the trolley 1, and the duct fan 4, which is running at the same time, sends the flue gas into the detector 5 through the secondary telescopic hose 6 and detects the flue gas.

[0034] like Figure 2 and Figure 3 As shown, a connecting mechanism 2 is provided above the induced draft fan. The connecting mechanism 2 includes a collection pipe 202 with one end open. A turntable 203 is rotatably installed at the opening of the collection pipe 202 to match it. Several evenly distributed insertion pipes 204 of different sizes are installed on the side of the turntable 203. With multiple insertion pipes 204 of different sizes, it can be adapted to boiler flues of various sizes. At the same time, different sizes of insertion pipes 204 can be selected by rotating the turntable 203.

[0035] like Figure 4 and Figure 5 As shown, the inner wall of the collecting tube 202 is provided with an interconnected arc-shaped groove 205 and a V-shaped groove 206. A piston 209 adapted to the insertion tube 204 is provided inside the insertion tube 204. A telescopic rod 208 is installed on the side of the piston 209. A limiting plate 210 is installed on the telescopic arm of the telescopic rod 208. A limiting block 212 that slides in the arc-shaped groove 205 is installed on the side of the limiting plate 210. The rotating turntable 203 drives the telescopic rod 208 and the limiting plate 210 to rotate through the piston 209. At the same time, it drives the limiting block 212 to rotate in the arc-shaped groove 205. When the limiting block 212 enters the V-shaped groove 206, the limiting plate 210 is moved away from the insertion tube 204 by the flow guided by the V-shaped groove 206, thereby driving the corresponding piston 209 to move out of the tube.

[0036] like Figure 5 As shown, all the ends of the telescopic rods 208 are connected to a rotating ring 207 that is rotatably connected to the inner wall of the collection tube 202. A spring 211 is fitted on the telescopic rod 208 between the limiting plate 210 and the rotating ring 207. When the piston 209 moves out of the insertion tube 204 and compresses the telescopic rod 208, it will also compress the spring 211 through the limiting plate 210.

[0037] like Figure 4 and Figure 5 As shown, a motor 213 is installed on the inner side of the mouth-shaped frame 201 on one side of the collection tube 202. The driving end of the motor 213 extends into the collection tube 202 and is fixedly connected to the turntable 203. After the motor 213 is powered on, the running motor 213 drives the turntable 203 to rotate.

[0038] like Figure 1 and Figure 3As shown, the side of the collection pipe 202 is also equipped with a main telescopic hose 214 connected to the input end of the induced draft fan 4. When the insertion pipe 204 is inserted into the boiler flue, the running induced draft fan 4 uses the main telescopic hose 214 to cooperate with the insertion pipe 204 inserted into the flue to extract the flue gas.

[0039] In summary, after the motor 213 is powered on, the running motor 213 drives the turntable 203 to rotate, which in turn drives all the insertion tubes 204 to rotate until the insertion tube 204 that matches the flue size rotates to the top. At the same time, the limiting block 212 on the limiting plate 210 corresponding to the insertion tube 204 will enter the V-groove 206 during the rotation. Through its guiding compression telescopic rod 208, it drives the piston 209 to move out of the corresponding insertion tube 204, so that the top insertion tube 204 is opened and the other insertion tubes 204 are closed. Then, the insertion tube 204 at the top is inserted into the boiler flue. The running induced draft fan 4 draws out the flue gas in the boiler flue through the inserted insertion tube 204, and then sends it into the detector 5 for detection through the auxiliary telescopic hose 6. As the turntable 203 continues to rotate, it will drive the limiting block 212 to move out of the V-groove 206 and re-enter the arc groove 205. At the same time, it will drive the piston 209 to re-insert into the aligned insertion tube 204 to block it.

[0040] like Figure 1 As shown, a main electric push rod 7 is installed on the upper side of the trolley 1. Above the main electric push rod 7, a telescopic arm is fixedly connected to the side of the mouth-shaped frame 201. When the main electric push rod 7 is extended, the height of the connecting mechanism 2 can be adjusted so that the uppermost insertion tube 204 is at the same height as the flue. Then, the auxiliary electric push rod 8 extends to insert the uppermost insertion tube 204 into the flue.

[0041] Example 2:

[0042] Based on Example 1, such as Figure 1 As shown, an adjustment mechanism 3 is installed on the upper end of the main electric push rod 7. The adjustment mechanism 3 includes a rectangular plate 301, which provides an installation platform for other components within the mechanism.

[0043] like Figure 6 As shown, a large gear 302 is rotatably mounted on the upper side of the rectangular plate 301, and a drive motor 303 is mounted on the lower side of the rectangular plate 301. The drive end of the drive motor 303 extends to the upper side of the rectangular plate 301 and is equipped with a small gear 304 that meshes with the large gear 302. When the drive motor 303 is running, it drives the small gear 304 to rotate, which in turn drives the large gear 302 to rotate.

[0044] like Figure 1 and Figure 6As shown, a U-shaped frame 305 is installed at the upper center of the large gear 302. An L-shaped plate 306, which is fixedly connected to the auxiliary electric push rod 8, is rotatably installed between the inner sides of the U-shaped frame 305. A deflection motor 307, whose drive end is connected to the rotating shaft of the L-shaped plate 306, is installed on the side of the U-shaped frame 305. The running deflection motor 307 drives the L-shaped plate 306 to rotate. The rotating L-shaped plate 306 can drive the insertion tube 204 to rotate and tilt through the main electric push rod 7, thereby changing the tilt angle of the uppermost insertion tube 204.

[0045] In summary, when encountering an inclined flue, the pushing device brings it closer to the flue. Then, the drive motor 303 drives the pinion 304 to rotate, which in turn drives the U-shaped frame 305 and its components to rotate via the large gear 302. This causes the uppermost insertion tube 204 to rotate and face the flue, aligning it with the flue from a top-down perspective. The deflection motor 307 then drives the L-shaped plate 306 to rotate. The rotating L-shaped plate 306 can drive the insertion tube 204 to rotate and tilt via the main electric push rod 7, thereby changing the tilt angle of the uppermost insertion tube 204 and aligning it with the flue. Finally, the auxiliary electric push rod 8 extends to insert the insertion tube 204 into the flue.

[0046] The working principle of this utility model:

[0047] In use, after the motor 213 is powered on, the running motor 213 drives the turntable 203 to rotate, which in turn drives all the insertion tubes 204 to rotate until the insertion tube 204 that matches the flue size rotates to the top. At the same time, the limiting block 212 on the limiting plate 210 corresponding to the insertion tube 204 will enter the V-groove 206 during the rotation. Through its guiding compression telescopic rod 208, it drives the piston 209 to move out of the corresponding insertion tube 204, so that the top insertion tube 204 is opened and the other insertion tubes 204 are closed. Then the insertion tube 204 at the top is inserted into the boiler flue. The running induced draft fan 4 draws out the flue gas in the boiler flue through the inserted insertion tube 204, and then sends it into the detector 5 for detection through the auxiliary telescopic hose 6. Afterwards, as the turntable 203 continues to rotate, it will drive the limiting block 212 to move out of the V-groove 206 and re-enter the arc groove 205. At the same time, it will drive the piston 209 to re-insert into the aligned insertion tube 204 to block it.

[0048] When encountering a tilted flue, the pusher brings it closer to the flue. Then, the drive motor 303 drives the pinion 304 to rotate, which in turn drives the U-shaped frame 305 and its components to rotate via the large gear 302. This causes the uppermost insertion tube 204 to rotate and face the flue, aligning it with the flue from a top-down perspective. The deflection motor 307 then drives the L-shaped plate 306 to rotate. The rotating L-shaped plate 306 can drive the insertion tube 204 to rotate and tilt via the main electric push rod 7, thereby changing the tilt angle of the uppermost insertion tube 204 and aligning it with the flue. Then, the auxiliary electric push rod 8 extends to insert the insertion tube 204 into the flue. The previous operation is then repeated to perform the test.

[0049] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A boiler flue gas sampling and detection device, comprising a trolley (1) pushed by manpower, a detector (5) mounted on the upper side of the trolley (1), and a duct fan (4) connected to the detector (5) via a pipe above the detector (5), characterized in that: A connecting mechanism (2) is provided above the induced draft fan. The connecting mechanism (2) includes a collection pipe (202) with one end open. A turntable (203) is rotatably provided at the opening of the collection pipe (202). Several evenly distributed insertion pipes (204) of different sizes are installed on the side of the turntable (203). The inner wall of the collection pipe (202) is provided with an interconnected arc groove (205) and a V-shaped groove (206). A piston (209) adapted to the insertion tube (204) is provided inside the insertion tube (204). A telescopic rod (208) is installed on the side of the piston (209). A limiting plate (210) is installed on the telescopic arm of the telescopic rod (208). A limiting block (212) that slides in the arc groove (205) is installed on the side of the limiting plate (210).

2. The boiler flue gas sampling and detection device according to claim 1, characterized in that, All telescopic rods (208) have a common rotating ring (207) that is rotatably connected to the inner wall of the collection pipe (202) at their ends. A spring (211) is fitted on the telescopic rod (208) between the limiting plate (210) and the rotating ring (207).

3. The boiler flue gas sampling and detection device according to claim 1, characterized in that, A motor (213) is installed on the inner side of the mouth-shaped frame (201) on one side of the collection tube (202), and the drive end of the motor (213) extends into the collection tube (202) and is fixedly connected to the turntable (203).

4. The boiler flue gas sampling and detection device according to claim 1, characterized in that, The side of the collection pipe (202) is also equipped with a main telescopic hose (214) that is connected to the input end of the duct fan (4).

5. The boiler flue gas sampling and detection device according to claim 1, characterized in that, The upper side of the trolley (1) is provided with an adjustment mechanism (3) for lifting up and down, and the adjustment mechanism (3) includes a rectangular plate (301).

6. The boiler flue gas sampling and detection device according to claim 5, characterized in that, A large gear (302) is rotatably mounted on the upper side of the rectangular plate (301).

7. A boiler flue gas sampling and detection device according to claim 6, characterized in that, A drive motor (303) is installed on the lower side of the rectangular plate (301), and the drive end of the drive motor (303) extends to the upper side of the rectangular plate (301) and is equipped with a small gear (304) that meshes with the large gear (302).

8. The boiler flue gas sampling and detection device according to claim 7, characterized in that, A U-shaped frame (305) is mounted on the upper center of the large gear (302), and an L-shaped plate (306) is rotatably mounted between the inner surfaces of the U-shaped frame (305).

9. A boiler flue gas sampling and detection device according to claim 8, characterized in that, A deflection motor (307) with its drive end connected to the rotating shaft of the L-shaped plate (306) is mounted on the side of the U-shaped frame (305).

10. A boiler flue gas sampling and detection device according to claim 9, characterized in that, The L-shaped plate (306) has an auxiliary electric push rod (8) installed on its side. The telescopic arm of the auxiliary electric push rod (8) is fixedly connected to the mouth-shaped frame (201).

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