Air sampling device for boiler waste gas detection

Abstract

The utility model relates to the technical field of waste gas detection, and particularly discloses an air sampling device for boiler waste gas detection, which comprises a collecting mechanism and a mounting mechanism, the collecting mechanism comprises a collecting bin, an adjusting bin and an air inlet bin, the air inlet bin is communicated with the collecting bin through the adjusting bin, and the mounting mechanism comprises a plurality of telescopic cylinders fixedly mounted on the peripheral side surface of the collecting bin. A lifting assembly is arranged at the end, away from the telescopic cylinder, of the telescopic column, a hinge base is arranged at one end of the lifting assembly, a connecting plate is movably connected into the hinge base, and a limiting plate is fixedly connected to one end of the connecting plate; by arranging the collecting bin with the mounting mechanism and the lifting assembly, a gap can be reserved between the air inlet bin and the air outlet of the boiler, mixed gas of waste gas and air is collected in the collecting bin, the actual air environment is better met, and therefore the accuracy of a detection result can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhaust gas detection, and in particular relates to an air sampling device for boiler exhaust gas detection. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy in the fuel and electrical energy. The boiler can output steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. There are many types of boilers. According to their use, boilers can be divided into: power station boilers, industrial boilers, domestic boilers and special boilers. When the boiler is burned inside, harmful gases are produced, which pollute the atmospheric environment.

[0003] According to the patent publication number CN 213336970 U, an air sampling device for boiler exhaust gas detection is proposed, which includes a boiler, an exhaust port is provided on the top of the boiler, an air sampling device is provided on the exhaust port, the air sampling device includes a sample gas collection box, an air inlet pipe, a dust filter, a sealing baffle ring and a hemispherical piston, a piston plate is provided in the sample gas collection box, a piston shaft is fixed on the upper side of the piston plate, a spring telescopic rod is fixedly connected to the upper side of the hemispherical piston, a detachable dust filter is provided on the lower side of the sealing baffle ring, a breathable baffle is threadedly connected to the inner wall of the air inlet pipe, the dust filter is clamped between the sealing baffle ring and the breathable baffle, and the air inlet pipe is connected to the exhaust port. Compared with the existing technology, the advantages of the utility model are: the structure of the utility model is simple, after the air inlet pipe is connected to the exhaust port, the sampling and collection of harmful exhaust gas can be carried out by pulling out the piston shaft, and the operation is convenient; and the dust filter can filter out dust impurities in the harmful exhaust gas;

[0004] When in use, the atmospheric sampling device needs to be installed on the top of the boiler to collect exhaust gas. What needs to be detected is the pollution caused by the exhaust gas after it is discharged into the atmosphere. The device is directly connected to the exhaust port. The exhaust gas discharged by the boiler enters the collection equipment directly without passing through the air, resulting in the inability to simulate the actual pollution situation in the atmosphere, affecting the test results, and the device cannot adapt to the installation of boilers of different specifications and sizes.

[0005] Therefore, those skilled in the art have proposed an air sampling device for boiler exhaust gas detection to solve the problems raised in the background art. Utility Model Content

[0006] The purpose of the utility model is to provide an air sampling device for boiler exhaust gas detection to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An air sampling device for boiler exhaust gas detection, comprising:

[0009] The collecting mechanism includes a collecting bin, a regulating bin, and an air inlet bin. The regulating bin is fixedly connected to the lower surface of the collecting bin, the regulating bin is communicated with the collecting bin, and the air inlet bin is fixedly connected to the lower surface of the regulating bin, the air inlet bin is communicated with the collecting bin through the regulating bin.

[0010] The installation mechanism includes a plurality of telescopic cylinders fixedly installed on the side surfaces of the collection bin, a telescopic column is slidably connected inside the telescopic cylinder, a lifting assembly is provided at one end of the telescopic column away from the end of the telescopic cylinder, a hinge seat is provided at one end of the lifting assembly, a connecting plate is movably connected inside the hinge seat, and one end of the connecting plate is fixedly connected to a limiting plate.

[0011] Preferably, a connecting component is provided on the regulating chamber, and the connecting component includes a ball valve body arranged inside the regulating chamber and an electromagnetic valve arranged on the side surface of the regulating chamber. A vent is opened on the ball valve body, and the electromagnetic valve is electrically connected to a wireless signal receiving module.

[0012] Preferably, the lifting assembly includes a lifting cylinder and a lifting column, the lifting column is in sliding cooperation with the lifting cylinder, and the hinge seat is fixedly connected to an end of the lifting column away from the lifting cylinder.

[0013] Preferably, a locking screw is threadedly connected to the side surface of the telescopic cylinder, one end of which is pressed and fitted with the telescopic column, and a positioning screw is threadedly connected to the side surface of the lifting cylinder, one end of which is pressed and fitted with the lifting column.

[0014] Preferably, both ends of the connecting plate are fixedly connected with a movable shaft, and a fastening knob is threadedly connected to the side surface of one end of the movable shaft, and the fastening knob is located on a side surface of the hinge seat.

[0015] Preferably, a detection tube is installed on the side surface of the collection bin, the detection tube is connected with the interior of the collection bin, and a connecting flange and a sealing plug are provided at one end of the detection tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The utility model provides a collecting bin with an installation mechanism. When in use, the limit plate is adjusted to a state that is adapted to the shape of the outer wall of the boiler exhaust port by a hinge seat, and then the collecting mechanism is lifted upward by a lifting assembly to ensure that a gap is left between the air inlet bin and the exhaust port of the boiler, so that the exhausted exhaust gas contacts and mixes with the air, and then enters the collecting bin through the air inlet bin. At this time, the mixed gas of exhaust gas and air can be collected in the collecting bin, which is more in line with the actual air environment, thereby improving the accuracy of the detection results. After the collection is completed, a start signal can be sent to the wireless signal receiving module on the solenoid valve through a terminal with a wireless signal transmitting function. After receiving the start signal, the wireless signal receiving module can start the solenoid valve, drive the ball valve body to close the regulating bin, and avoid the loss of the collected gas sample.

[0018] (2) The utility model provides a lifting assembly with a lifting cylinder and a lifting column. The sliding fit between the lifting cylinder and the lifting column can adjust the distance between the collecting mechanism and the boiler discharge port. After the height is adjusted, the positioning screws can be used to lock and fix it. Furthermore, the lateral position of the limit plate can be adjusted by providing a telescopic cylinder and a telescopic column, so that the device can be fixedly installed on boiler exhaust ports of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the specific structure of the installation mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the regulating chamber of the present utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above.

[0023] In the figure: 1. Collection chamber; 2. Adjustment chamber; 3. Air intake chamber; 4. Detection tube; 5. Sealing plug; 6. Connecting flange; 7. Lifting cylinder; 8. Lifting column; 9. Hinge seat; 10. Limit plate; 11. Telescopic cylinder; 12. Telescopic column; 13. Locking screw; 14. Positioning screw; 15. Movable shaft; 16. Tightening knob; 17. Connecting plate; 18. Solenoid valve; 19. Ball valve body; 20. Vent hole; 21. Wireless signal receiving module. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1-Figure 4 As shown, an air sampling device for boiler exhaust gas detection includes:

[0027] The collecting mechanism includes a collecting bin 1, an adjusting bin 2 and an air inlet bin 3. The adjusting bin 2 is fixedly connected to the lower surface of the collecting bin 1, and the adjusting bin 2 is connected to the collecting bin 1. The air inlet bin 3 is fixedly connected to the lower surface of the adjusting bin 2, and the air inlet bin 3 is connected to the collecting bin 1 through the adjusting bin 2.

[0028] The installation mechanism includes a plurality of telescopic cylinders 11 fixedly installed on the side of the collection bin 1, a telescopic column 12 is slidably connected inside the telescopic cylinder 11, a lifting assembly is provided at one end of the telescopic column 12 away from the end of the telescopic cylinder 11, a hinge seat 9 is provided at one end of the lifting assembly, a connecting plate 17 is movably connected inside the hinge seat 9, and one end of the connecting plate 17 is fixedly connected to the limiting plate 10.

[0029] Specifically, a connecting component is provided on the regulating chamber 2, and the connecting component includes a ball valve body 19 arranged inside the regulating chamber 2 and an electromagnetic valve 18 arranged on the side of the regulating chamber 2. A vent 20 is opened on the ball valve body 19, and the electromagnetic valve 18 is electrically connected to a wireless signal receiving module 21.

[0030] As can be seen from the above, the device is provided with a collecting bin 1 with a mounting mechanism. When in use, the limit plate 10 is adjusted to a state that is adapted to the shape of the outer wall of the boiler exhaust port through the hinge seat 9, and then the collecting mechanism is lifted upward by the lifting assembly to ensure that a gap is left between the air inlet bin 3 and the exhaust port of the boiler, so that the exhausted exhaust gas contacts and mixes with the air, and then enters the collecting bin 1 through the air inlet bin 3. At this time, the mixed gas of exhaust gas and air can be collected in the collecting bin 1, which is more in line with the actual air environment, thereby improving the accuracy of the detection results. After the collection is completed, a start signal can be sent to the wireless signal receiving module 21 on the solenoid valve 18 through a terminal with a wireless signal transmitting function. After receiving the start signal, the wireless signal receiving module 21 can start the solenoid valve 18, and drive the ball valve body 19 to close the regulating bin 2 to avoid the loss of the collected gas sample.

[0031] Example 2:

[0032] refer to Figures 1 to 4 As shown, the lifting assembly includes a lifting cylinder 7 and a lifting column 8. The lifting column 8 is slidably matched with the lifting cylinder 7, and a hinge seat 9 is fixedly connected to the end of the lifting column 8 away from the lifting cylinder 7.

[0033] Specifically, a locking screw 13 is threadedly connected to the side surface of the telescopic cylinder 11, and one end of the locking screw 13 is squeezed and fitted with the telescopic column 12. A positioning screw 14 is threadedly connected to the side surface of the lifting cylinder 7, and one end of the positioning screw 14 is squeezed and fitted with the lifting column 8.

[0034] Specifically, both ends of the connecting plate 17 are fixedly connected to the movable shaft 15 , and a fastening knob 16 is threadedly connected to the side surface of one end of the movable shaft 15 . The fastening knob 16 is located on a side surface of the hinge seat 9 .

[0035] Specifically, a detection tube 4 is installed on the side of the collection bin 1 . The detection tube 4 is connected to the interior of the collection bin 1 . A connecting flange 6 and a sealing plug 5 are provided at one end of the detection tube 4 .

[0036] As can be seen from the above, this device is equipped with a lifting assembly including a lifting cylinder 7 and a lifting column 8. The sliding cooperation between the lifting cylinder 7 and the lifting column 8 can adjust the distance between the collecting mechanism and the boiler discharge port. After adjusting the height, the positioning screw 14 can be used to lock and fix it. Further, by setting the telescopic cylinder 11 and the telescopic column 12, the lateral position of the limit plate 10 can be adjusted, so that this device can be fixedly installed on boiler exhaust ports of different sizes.

[0037] All standard parts used in this utility model can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. In addition, the circuit connections adopt conventional connection methods in the existing technology and will not be described in detail here. Any matters not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0038] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air sampling device for boiler exhaust gas detection, characterized in that: include: A collecting mechanism, the collecting mechanism comprising a collecting bin (1), an adjusting bin (2) and an air inlet bin (3), the adjusting bin (2) being fixedly connected to the lower surface of the collecting bin (1), the adjusting bin (2) being in communication with the collecting bin (1), the air inlet bin (3) being fixedly connected to the lower surface of the adjusting bin (2), the air inlet bin (3) being in communication with the collecting bin (1) via the adjusting bin (2); The mounting mechanism comprises a plurality of telescopic cylinders (11) fixedly mounted on the peripheral side of the collection bin (1); a telescopic column (12) is slidably connected inside the telescopic cylinder (11); a lifting assembly is provided at one end of the telescopic column (12) away from the end of the telescopic cylinder (11); a hinge seat (9) is provided at one end of the lifting assembly; a connecting plate (17) is movably connected inside the hinge seat (9); and one end of the connecting plate (17) is fixedly connected to a limiting plate (10).

2. The air sampling device for boiler exhaust gas detection according to claim 1, characterized in that: The regulating chamber (2) is provided with a communication component, the communication component comprising a ball valve body (19) arranged inside the regulating chamber (2) and a solenoid valve (18) arranged on the side surface of the regulating chamber (2), a vent hole (20) being provided on the ball valve body (19), and a wireless signal receiving module (21) being electrically connected to the solenoid valve (18).

3. The air sampling device for boiler exhaust gas detection according to claim 1, characterized in that: The lifting assembly comprises a lifting cylinder (7) and a lifting column (8), wherein the lifting column (8) is slidably matched with the lifting cylinder (7), and the hinge seat (9) is fixedly connected to an end of the lifting column (8) away from the lifting cylinder (7).

4. The air sampling device for boiler exhaust gas detection according to claim 3, characterized in that: The telescopic cylinder (11) is threadedly connected to a locking screw (13) on its circumferential side, and one end of the locking screw (13) is pressed and fitted with the telescopic column (12). The lifting cylinder (7) is threadedly connected to a positioning screw (14) on its circumferential side, and one end of the positioning screw (14) is pressed and fitted with the lifting column (8).

5. The air sampling device for boiler exhaust gas detection according to claim 1, characterized in that: Both ends of the connecting plate (17) are fixedly connected to a movable shaft (15), and a fastening knob (16) is threadedly connected to the side surface of one end of the movable shaft (15), and the fastening knob (16) is located on a side surface of the hinge seat (9).

6. The air sampling device for boiler exhaust gas detection according to claim 1, characterized in that: A detection tube (4) is installed on the side surface of the collection bin (1), the detection tube (4) is connected to the interior of the collection bin (1), and one end of the detection tube (4) is provided with a connecting flange (6) and a sealing plug (5).

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