Portable flue gas tester

Abstract

The utility model belongs to the technical field of flue gas testing, and particularly relates to a portable flue gas tester which comprises a shell, a heating box and a flue gas tester body, the heating box and the flue gas tester body are fixedly connected in the shell, the top of the shell is fixedly connected with a handle, two heating plates are arranged in the heating box, and the flue gas tester body is arranged in the shell. A uniform comprehensive heating mechanism is arranged between the heating box and the two heating plates, a gas supply pipe is arranged between the heating box and the flue gas tester body, a temperature control mechanism is arranged among the shell, the heating box and the gas supply pipe, and the temperature control mechanism comprises a thermometer, an adjusting assembly and a gate assembly which are arranged on the gas supply pipe. The flue gas heating device is reasonable in structural design, flue gas can be uniformly and fully heated, the situation that flue gas heating is not uniform and thorough, and consequently the detection precision of sulfur dioxide in the later period is affected is prevented, meanwhile, the heating temperature of the flue gas can be stably regulated and controlled, and the detection precision of sulfur dioxide in the flue gas is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas testing, in particular to a portable flue gas tester. Background Art

[0002] Flue gas is a mixture of gas and soot, and is the main cause of polluting the atmosphere in residential areas. The composition of flue gas is very complex. The gas includes water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, etc. The soot includes ash of fuel, coal particles, oil droplets, and high-temperature pyrolysis products, etc. Sulfur dioxide is easily soluble in water. When there is a large amount of moisture in the flue gas, it will affect the detection accuracy of sulfur dioxide. Therefore, it is necessary to heat the flue gas.

[0003] After retrieval: A portable flue gas tester with the authorization announcement number of CN213023065U, a buffer layer is installed outside the internal support, the buffer layer is fixedly connected with the internal support, an external protective shell is installed outside the buffer layer, the external protective shell is fixedly connected with the buffer layer, mounting plates are installed at the upper ends of the rear end faces on both sides of the external protective shell, there are two mounting plates, a protective buffer cloth is installed between the two mounting plates, a rotating shaft is installed inside the protective buffer cloth, and the rotating shaft is connected with the mounting plate through a bearing.

[0004] However, although the above portable flue gas tester has the effect of buffer protection, when heating the flue gas, there are situations where the flue gas is heated unevenly and incompletely, and it is inconvenient to control the heating temperature of the flue gas according to the needs of flue gas testing, which affects the detection accuracy of sulfur dioxide in the flue gas. Therefore, we propose a portable flue gas tester to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages, and a portable flue gas tester is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A portable flue gas tester, comprising a housing, a heating box fixedly connected inside the housing, and a flue gas tester body. A handle is fixedly connected to the top of the housing. Two heating plates are arranged inside the heating box. An evenly comprehensive heating mechanism is arranged between the heating box and the two heating plates. An air supply pipe is arranged between the heating box and the flue gas tester body. A temperature control mechanism is arranged among the housing, the heating box and the air supply pipe. The temperature control mechanism includes a thermometer, an adjustment component and a gate component arranged on the air supply pipe.

[0008] Preferably, the uniform and comprehensive heating mechanism includes an inner box fixedly connected inside the heating box. An annular cavity is formed at the gap between the inner box and the heating box. An air inlet pipe is fixedly communicated with one side inner wall of the annular cavity. A plurality of annular baffles are fixedly connected inside the annular cavity. An air vent hole is formed on one side of the annular baffle. The plurality of air vent holes are arranged in a vertical and horizontal cross pattern.

[0009] Preferably, a threaded pipe is threadedly communicated with the outside of the air inlet pipe. A filter head is fixedly communicated with one end of the threaded pipe.

[0010] Preferably, the adjustment assembly includes a driving motor fixedly connected to one side of the housing. A double-headed screw is fixedly connected to the output shaft of the driving motor. Two driving plates are threadedly sleeved on the outside of the double-headed screw. Push-pull rods are rotatably connected to the top and bottom of the two driving plates. An installation plate is rotatably connected to the two push-pull rods on the same horizontal plane. The two heating plates are respectively fixedly connected to the outside of the corresponding installation plate.

[0011] Preferably, four guide rods are fixedly connected to the top inner wall and the bottom inner wall of the inner box. The two installation plates are respectively slidably sleeved on the outside of the corresponding guide rods.

[0012] Preferably, an installation cavity is formed inside the heating box. The gate assembly includes a connecting plate fixedly connected to one side of the driving plate on the right side, and two springs fixedly connected to the bottom inner wall of the installation cavity. An upper triangular plate is fixedly connected to one side of the connecting plate. The same lower triangular plate is fixedly connected to the tops of the two springs. The upper triangular plate is movably abutted against the slope of the lower triangular plate. A gate plate is fixedly connected to the bottom of the lower triangular plate. The gate plate is slidably sleeved inside the air supply pipe.

[0013] Preferably, a rectangular opening is formed between the installation cavity and the air supply pipe. The gate plate is slidably sleeved inside the rectangular opening.

[0014] Preferably, four anti-slip foot pads are fixedly connected to the bottom of the housing.

[0015] In the present utility model, for the portable flue gas tester, the flue gas can be introduced into the air inlet pipe through the flue gas tester body. The flue gas enters the annular cavity formed between the heating box and the inner box. Through the arrangement of the annular baffle and the staggered air vent holes, the flue gas can be guided, the flow rate of the flue gas can be slowed down, the flow distance of the flue gas can be increased, and thus the time of the flue gas in the heating box can be extended. Furthermore, through the heating plate, the flue gas can be heated evenly and sufficiently, preventing the situation of uneven and incomplete heating of the flue gas, which may affect the accuracy of the later sulfur dioxide detection.

[0016] In the present utility model, for the described portable flue gas tester, the temperature of the heated flue gas can be measured through a thermometer. When the temperature is too low to meet the requirements, the driving motor is started. The driving motor drives the rotation of the double-headed screw, and the double-headed screw drives the two driving plates to move away from each other. The two driving plates drive the four push-pull rods, the two mounting plates and the two heating plates to move away from each other, making the heating plates closer to the annular cavity, thereby increasing the temperature of the heated flue gas. At the same time, the driving plate on the right drives the connecting plate and the upper triangular plate to move outwards. The upper triangular plate presses down on the lower triangular plate and the spring, and the lower triangular plate drives the gate plate to move downwards, thereby adjusting the cross-sectional area blocked by the gate plate on the gas supply pipe, reducing the effective area of flue gas discharge, and slowing down the flow rate of the flue gas. Under the dual actions of the heating plates approaching the annular cavity and slowing down the flow rate of the flue gas, the temperature of the heated flue gas can be increased until the temperature of the flue gas measured by the thermometer meets the requirements. When the driving motor is turned off, the temperature of the flue gas heating can be stably regulated, improving the accuracy of sulfur dioxide detection in the flue gas;

[0017] The structure of the present utility model is reasonably designed, and the flue gas can be heated evenly and sufficiently, preventing the situation of uneven and incomplete heating of the flue gas, which may affect the accuracy of subsequent sulfur dioxide detection. At the same time, the temperature of the flue gas heating can be stably regulated, further improving the accuracy of sulfur dioxide detection in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a first perspective three-dimensional view of a portable flue gas tester proposed by the present utility model;

[0019] Figure 2 is a second perspective three-dimensional view of a portable flue gas tester proposed by the present utility model;

[0020] Figure 3 is a cross-sectional view of a portable flue gas tester proposed by the present utility model;

[0021] Figure 4 is Figure 3 a schematic structural view of part A in

[0022] Figure 5 is Figure 3 a schematic structural view of part B in

[0023] Figure 6 is Figure 3 a schematic structural view of part C in

[0024] Figure 7 is a three-dimensional view of the gate assembly of a portable flue gas tester proposed by the present utility model.

[0025] In the figure: 1. Housing; 2. Main body of the flue gas tester; 3. Anti-slip foot pad; 4. Handle; 5. Driving motor; 6. Filter head; 7. Threaded pipe; 8. Gate plate; 9. Spring; 10. Lower triangular plate; 11. Upper triangular plate; 12. Connecting plate; 13. Heating box; 14. Air supply pipe; 15. Intake pipe; 16. Inner box; 17. Annular cavity; 18. Annular baffle; 19. Vent hole; 20. Heating plate; 21. Mounting plate; 22. Double-headed screw; 23. Driving plate; 24. Push-pull rod; 25. Guide rod; 26. Thermometer; 27. Installation cavity. Specific implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Refer to Figure 1-7 , a portable flue gas tester, including a housing 1, a heating box 13 fixedly connected in the housing 1, and a main body 2 of the flue gas tester. The model of the main body 2 of the flue gas tester in this article is the Qingdao Tuowei TW-3200 flue gas and dust tester. A handle 4 is fixedly connected to the top of the housing 1. Two heating plates 20 are arranged in the heating box 13. An evenly comprehensive heating mechanism is arranged between the heating box 13 and the two heating plates 20. An air supply pipe 14 is arranged between the heating box 13 and the main body 2 of the flue gas tester. A temperature control mechanism is arranged among the housing 1, the heating box 13, and the air supply pipe 14. The temperature control mechanism includes a thermometer 26, an adjustment component, and a gate component arranged on the air supply pipe 14.

[0028] As a further aspect of the present invention, the evenly comprehensive heating mechanism includes an inner box 16 fixedly connected in the heating box 13. An annular cavity 17 is formed at the gap between the inner box 16 and the heating box 13. An intake pipe 15 is fixedly communicated with one side inner wall of the annular cavity 17. A plurality of annular baffles 18 are fixedly connected in the annular cavity 17. A vent hole 19 is opened on one side of the annular baffle 18. The plurality of vent holes 19 are arranged in a vertical and cross manner.

[0029] Adopting the above solution: The flue gas can be introduced into the intake pipe 15 through the main body 2 of the flue gas tester. Through the setting of the filter head 6, it is beneficial to filter the dust in the flue gas. The flue gas enters the annular cavity 17 formed between the heating box 13 and the inner box 16. Through the setting of the annular baffle 18 and the staggered vent holes 19, the flue gas can be guided, the flow rate of the flue gas can be slowed down, the flow distance of the flue gas can be increased, and thus the time of the flue gas in the heating box 13 can be extended. Then, through the heating plate 20, the flue gas can be heated evenly and sufficiently, preventing the situation of uneven and incomplete heating of the flue gas from affecting the accuracy of the later sulfur dioxide detection.

[0030] As a further improvement of the present utility model, a threaded pipe 7 is threadedly connected to the outside of the intake pipe 15. One end of the threaded pipe 7 is fixedly connected to a filter head 6, which is beneficial for filtering dust in the flue gas, and is also beneficial for disassembly, cleaning and replacement, ensuring the filtering effect.

[0031] As a further improvement of the present utility model, the adjusting assembly includes a driving motor 5 fixedly connected to one side of the housing 1. A double-headed screw rod 22 is fixedly connected to the output shaft of the driving motor 5. Two driving plates 23 are sleeved on the outside of the double-headed screw rod 22 in a threaded manner. Push-pull rods 24 are rotatably connected to the top and bottom of the two driving plates 23. An installation plate 21 is rotatably connected to the two push-pull rods 24 on the same horizontal plane. Two heating plates 20 are respectively fixedly connected to the outside of the corresponding installation plate 21.

[0032] As a further improvement of the present utility model, four guide rods 25 are fixedly connected to the top inner wall and the bottom inner wall of the inner box 16. The two installation plates 21 are respectively sleeved on the outside of the corresponding guide rods 25 in a sliding manner, which is convenient for guiding and limiting the installation plates 21, making their movement more stable and smooth.

[0033] As a further improvement of the present utility model, an installation cavity 27 is provided in the heating box 13. The gate assembly includes a connecting plate 12 fixedly connected to one side of the driving plate 23 on the right, and two springs 9 fixedly connected to the bottom inner wall of the installation cavity 27. One side of the connecting plate 12 is fixedly connected to an upper triangular plate 11. The tops of the two springs 9 are fixedly connected to the same lower triangular plate 10. The upper triangular plate 11 is movably abutted against the slope of the lower triangular plate 10. A gate plate 8 is fixedly connected to the bottom of the lower triangular plate 10. The gate plate 8 is sleeved on the air supply pipe 14 in a sliding manner.

[0034] Adopting the above solution: Through the thermometer 26, the temperature of the heated flue gas can be measured. When the temperature does not meet the requirements, the thermometer 26 sends a signal to the controller on the flue gas tester body 2. The controller starts the driving motor 5. The driving motor 5 drives the rotation of the double-headed screw rod 22. The double-headed screw rod 22 drives the two driving plates 23 to move away from each other. The two driving plates 23 drive the four push-pull rods 24, the two installation plates 21 and the two heating plates 20 to move away from each other, making the heating plates 20 closer to the annular cavity 17, thereby increasing the temperature of the heated flue gas. At the same time, the driving plate 23 on the right drives the connecting plate 12 and the upper triangular plate 11 to move outward. The upper triangular plate 11 presses the lower triangular plate 10 and the springs 9 downward. The lower triangular plate 10 drives the gate plate 8 to move downward, thereby adjusting the cross-sectional area of the air supply pipe 14 blocked by the gate plate 8, reducing the effective area of the flue gas discharge, and slowing down the flow rate of the flue gas. Under the dual actions of the heating plates 20 approaching the annular cavity 17 and slowing down the flow rate of the flue gas, the temperature of the heated flue gas can be increased until the temperature of the flue gas measured by the thermometer 26 meets the requirements, and then the driving motor 5 is turned off.

[0035] As a further improvement of the present utility model, a rectangular opening is provided between the installation cavity 27 and the air supply pipe 14. The shutter 8 is slidably sleeved in the rectangular opening, which facilitates guiding the shutter 8 and makes its movement more stable.

[0036] As a further improvement of the present utility model, four anti-slip foot pads 3 are fixedly connected to the bottom of the housing 1. The anti-slip foot pads 3 are made of rubber, which improves the stability of the housing 1 when placed.

[0037] In the present utility model, during use, the flue gas tester body 2 can introduce the flue gas into the intake pipe 15. Through the setting of the filter head 6, it is beneficial to filter the dust in the flue gas. The flue gas enters the annular cavity 17 formed between the heating box 13 and the inner box 16. Through the setting of the annular baffle 18 and the staggered ventilation holes 19, the flue gas can be guided, the flow rate of the flue gas can be slowed down, the flow distance of the flue gas can be increased, and thus the time of the flue gas in the heating box 13 can be extended. Then, through the heating plate 20, the flue gas can be heated evenly and sufficiently, preventing the situation of uneven and incomplete heating of the flue gas, which may affect the accuracy of the later sulfur dioxide detection.

[0038] Through the thermometer 26, the temperature of the heated flue gas can be measured. When the temperature does not meet the requirements, the thermometer 26 sends a signal to the controller on the flue gas tester body 2. The controller starts the drive motor 5. The drive motor 5 drives the rotation of the double-headed screw rod 22. The double-headed screw rod 22 drives the two drive plates 23 to move away from each other. The two drive plates 23 drive the four push-pull rods 24, the two mounting plates 21 and the two heating plates 20 to move away from each other, making the heating plates 20 closer to the annular cavity 17. Thus, the temperature of the heated flue gas can be increased. At the same time, the drive plate 23 on the right drives the connecting plate 12 and the upper triangular plate 11 to move outwards. The upper triangular plate 11 presses down on the lower triangular plate 10 and the spring 9. The lower triangular plate 10 drives the shutter 8 to move downwards. Thus, the cross-sectional area of the air supply pipe 14 blocked by the shutter 8 can be adjusted, and the effective area of the flue gas discharge can be reduced. Thus, the flow rate of the flue gas can be slowed down. Under the dual actions of the heating plate 20 approaching the annular cavity 17 and slowing down the flow rate of the flue gas, the temperature of the heated flue gas can be increased until the temperature of the flue gas measured by the thermometer 26 meets the requirements. Then, the drive motor 5 is turned off. On the contrary, when the temperature is too high, the drive motor 5 is started in reverse, making the two drive plates 23 approach each other and driving the two heating plates 20 away from the annular cavity 17. At the same time, the drive plate 23 on the right drives the leftward movement of the upper triangular plate 11 without pressing on the lower triangular plate 10. At this time, under the elastic force of the spring 9, the shutter 8 moves upwards to increase the discharge speed of the flue gas. Thus, the temperature of the heated flue gas can be reduced until the temperature of the flue gas measured by the thermometer 26 meets the requirements. Thus, the temperature of the flue gas heating can be stably regulated, and the accuracy of the sulfur dioxide detection in the flue gas can be improved.

Claims

1. A portable flue gas tester, characterized in that, It includes a housing (1), a heating box (13) fixedly connected inside the housing (1), and a flue gas tester body (2). A handle (4) is fixedly connected to the top of the housing (1). Two heating plates (20) are arranged inside the heating box (13). A uniform and comprehensive heating mechanism is arranged between the heating box (13) and the two heating plates (20). An air supply pipe (14) is arranged between the heating box (13) and the flue gas tester body (2). A temperature control mechanism is arranged among the housing (1), the heating box (13), and the air supply pipe (14). The temperature control mechanism includes a thermometer (26), an adjustment component, and a gate component arranged on the air supply pipe (14).

2. The portable flue gas tester according to claim 1, characterized in that The uniform and comprehensive heating mechanism includes an inner box (16) fixedly connected inside the heating box (13). An annular cavity (17) is formed at the gap between the inner box (16) and the heating box (13). An air inlet pipe (15) is fixedly communicated with one side inner wall of the annular cavity (17). A plurality of annular baffles (18) are fixedly connected inside the annular cavity (17). An air vent hole (19) is opened on one side of the annular baffle (18). The plurality of air vent holes (19) are arranged in an up-and-down cross manner.

3. The portable flue gas tester according to claim 2, characterized in that, A threaded pipe (7) is threadedly communicated with the outside of the air inlet pipe (15). A filter head (6) is fixedly connected to one end of the threaded pipe (7).

4. The portable flue gas tester according to claim 3, characterized in that, The adjustment component includes a driving motor (5) fixedly connected to one side of the housing (1). A double-headed screw rod (22) is fixedly connected to the output shaft of the driving motor (5). Two driving plates (23) are sleeved on the outside of the double-headed screw rod (22) in a threaded manner. Push-pull rods (24) are rotatably connected to the top and bottom of the two driving plates (23). An installation plate (21) is rotatably connected to the two push-pull rods (24) on the same horizontal plane. The two heating plates (20) are respectively fixedly connected to the outside of the corresponding installation plate (21).

5. The portable flue gas tester according to claim 4, characterized in that, Four guide rods (25) are fixedly connected to the top inner wall and the bottom inner wall of the inner box (16). The two installation plates (21) are respectively slidably sleeved on the outside of the corresponding guide rods (25).

6. The portable flue gas tester according to claim 4, wherein An installation cavity (27) is opened inside the heating box (13). The gate component includes a connecting plate (12) fixedly connected to one side of the driving plate (23) on the right side, and two springs (9) fixedly connected to the bottom inner wall of the installation cavity (27). An upper triangular plate (11) is fixedly connected to one side of the connecting plate (12). The top ends of the two springs (9) are fixedly connected to the same lower triangular plate (10). The upper triangular plate (11) is movably abutted against the slope of the lower triangular plate (10). A gate plate (8) is fixedly connected to the bottom of the lower triangular plate (10). The gate plate (8) is slidably sleeved inside the air supply pipe (14).

7. A portable flue gas tester according to claim 6, characterized in that, A rectangular opening is opened between the installation cavity (27) and the air supply pipe (14). The gate plate (8) is slidably sleeved inside the rectangular opening.

8. A portable flue gas tester according to claim 1, characterized in that, Four anti-slip foot pads (3) are fixedly connected to the bottom of the housing (1).

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