Built-in style gas appliance

Abstract

The utility model discloses a built -in sample gas device belongs to sample gas device technical field, including flue, the flue inner wall is connected with mix smoke cylinder, the mix smoke cylinder outer wall is provided with the mounting seat, and the mixed mechanism is personally experienced sth, the mixed mechanism includes the pivot that sets up in mix smoke cylinder inside, the pivot outer wall is along the axis and is surrounded and is provided with a plurality of rotors, the rotor is configured as follows with mix smoke cylinder in the smoke gas mix even with pivot rotation, wherein, the smoke collection mechanism, the smoke collection mechanism includes the smoke collection pipe of mounting on the mounting seat, the smoke collection pipe outside is provided with a plurality of expansion frame, the expansion frame is configured as can be expanded to the direction of being away from the smoke collection pipe, in the utility model, through setting up the smoke collection mechanism makes the smoke gas collection point position can change dynamically with the smoke gas concentration change, and the device is directly arranged in the flue simultaneously, makes the device internal temperature to keep with the same in the flue, has saved the temperature -adjusting process and has reduced the detection error.

Description

Technical Field

[0001] This utility model belongs to the field of gas sampler technology, and particularly relates to a built-in gas sampler. Background Technology

[0002] When thermal power plants use combustibles as fuel to produce electricity, they generate a large amount of combustion flue gas. In addition to fuel ash, coal particles, and unburned carbon particles, it also contains gaseous pollutants, mainly sulfur dioxide and nitrogen oxides. Sulfur dioxide is a major cause of acid rain, and nitrogen oxides can easily trigger photochemical smog, which causes great environmental pollution. Before the flue gas is emitted, its composition needs to be tested and treated accordingly.

[0003] Flue gas composition detection typically uses a sampler. Traditionally, the sampler is placed outside the pipeline. Due to the high temperature inside the pipeline, when the sampler is placed in the external environment, the temperature is lower than inside the pipeline, causing a large amount of condensation to form inside the sampler. This prevents the measuring instruments for nitrogen oxides and sulfur dioxide from measuring. It is necessary to electrically heat the sampler to remove the condensation before measurement can be performed. This process consumes a lot of electricity and increases the complexity and maintenance cost of the system. Secondly, after the internal temperature of the sampler decreases, in order to simulate the state of the flue gas inside the pipeline, the internal temperature of the sampler needs to be adjusted to the same temperature as the original medium. Inevitable errors will occur during temperature adjustment, leading to deviations in the test results and affecting the measurement. Utility Model Content

[0004] The purpose of this utility model is to propose an internal sampler to solve the problems of condensation caused by internal cooling and errors in temperature readjustment.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a built-in sampler, including a flue, a mixing cylinder connected to the inner wall of the flue, a mounting base provided on the outer wall of the mixing cylinder, a mixing mechanism, the mixing mechanism including a rotating shaft disposed inside the mixing cylinder, a plurality of swirl vanes arranged around the outer wall of the rotating shaft along the axis, the swirl vanes being configured to rotate with the rotating shaft to mix the flue gas in the mixing cylinder, and a smoke collection mechanism, the smoke collection mechanism including a smoke collection pipe mounted on the mounting base, a plurality of extension frames provided outside the smoke collection pipe, the extension frames being configured to unfold away from the smoke collection pipe to expand the smoke collection range.

[0006] Preferably, the mixing mechanism further includes a first motor installed at one end of the mixing pipe, the output end of the first motor being fixedly connected to one end of the rotating shaft, and the first motor being covered with a first protective shell.

[0007] Preferably, a sliding ring is fitted on the outer wall of the smoke collection pipe, and a collector is connected to the end of the extension frame.

[0008] Preferably, the smoke collection mechanism further includes a mounting shell connected to the top of the mounting base, a lead screw rotatably connected to the inner wall of the mounting shell, a movable seat provided outside the lead screw, and one side of the movable seat being connected to the outer wall of the sliding ring.

[0009] Preferably, a second motor is fixedly installed on the top of the mounting housing, the output end of the second motor is fixedly connected to one end of the lead screw, and a second protective housing is provided on the outside of the second motor.

[0010] Preferably, one end of the mixing pipe is connected to a connecting pipe, the connecting pipe is provided with multiple baffles, one end of the connecting pipe is connected to a heat insulation cylinder, and one end of the heat insulation cylinder is connected to a gas storage chamber.

[0011] Preferably, it also includes a heat collection mechanism, which includes a heat collection tube coiled around the outside of the insulation cylinder, and a heat release block is connected to the end of the heat collection tube.

[0012] Preferably, the top of the gas storage chamber is connected to an exhaust pipe, and a flue gas detector is installed on the top of the gas storage chamber.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, by setting an extension frame, the collector can change position as the extension frame is extended or retracted, so that the position of the collector can be dynamically adjusted according to the concentration of flue gas inside the flue. This allows the device to collect flue gas over a larger area for analysis, resulting in higher data collection efficiency and making it more conducive to analyzing the composition of flue gas inside the flue.

[0014] 2. In this utility model, the device is directly installed inside the flue, and the detection instrument is directly inserted into the device from outside the flue for sampling and analysis. By setting up a heat collection mechanism, the heat inside the flue is recovered, so that the temperature of the collected flue gas is always consistent with the temperature inside the flue, preventing condensation from forming inside the device due to temperature drop. This eliminates the need for condensate removal steps, simplifies the system, and eliminates the need for temperature adjustment during detection, reducing data errors caused by temperature adjustment, lowering energy consumption, and making maintenance simpler. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a built-in sample gas device proposed in this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of a built-in sample gas device proposed in this utility model; Figure 3 This is a partial cross-sectional structural diagram of the mixing mechanism of a built-in sample gas device proposed in this utility model. Figure 4This is a half-sectional structural diagram of the expansion mechanism of a built-in sample gas device proposed in this utility model. Figure 5 This is a schematic diagram of the assembly structure of a built-in sample gas generator proposed in this utility model.

[0016] Legend: 1. Mixing pipe; 2. Connecting pipe; 3. Insulation cylinder; 4. Gas storage chamber; 5. Mixing mechanism; 501. Rotating shaft; 502. Rotary blade; 503. First motor; 504. First protective shell; 6. Heat collection mechanism; 601. Heat collection tube; 602. Heat release block; 7. Smoke collection mechanism; 701. Smoke collection pipe; 702. Sliding ring; 703. Extension frame; 704. Collector; 705. Mounting shell; 706. Lead screw; 707. Moving seat; 708. Second motor; 709. Second protective shell; 8. Exhaust pipe; 9. Flue gas detector; 10. Baffle plate; 11. Mounting seat; 12. Flue. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-5 This utility model provides a technical solution: a built-in sampler, including a flue 12, a mixing cylinder 1 connected to the inner wall of the flue 12, a mounting base 11 on the outer wall of the mixing cylinder 1, a mixing mechanism 5, the mixing mechanism 5 including a rotating shaft 501 disposed inside the mixing cylinder 1, a plurality of swirl vanes 502 disposed around the outer wall of the rotating shaft 501 along the axis, the swirl vanes 502 being configured to rotate with the rotating shaft 501 to mix the flue gas in the mixing cylinder 1, wherein, a smoke collection mechanism 7, the smoke collection mechanism 7 including a smoke collection pipe 701 mounted on the mounting base 11, a plurality of extension frames 703 disposed outside the smoke collection pipe 701, the extension frames 703 being configured to unfold away from the smoke collection pipe 701 to expand the smoke collection range.

[0019] A sliding ring 702 is fitted on the outer wall of the smoke collection pipe 701, and a collector 704 is connected to the end of the extension frame 703.

[0020] The smoke collection mechanism 7 also includes a mounting shell 705 connected to the top of the mounting base 11. A lead screw 706 is rotatably connected to the inner wall of the mounting shell 705. A movable seat 707 is provided outside the lead screw 706. One side of the movable seat 707 is connected to the outer wall of the sliding ring 702.

[0021] A second motor 708 is fixedly mounted on the top of the mounting housing 705. The output end of the second motor 708 is fixedly connected to one end of the lead screw 706. A second protective housing 709 is fitted over the second motor 708.

[0022] Specifically, bearings are embedded in the inner wall of the mounting housing 705 and the top of the mounting base 11. The bearings are rotatably connected to the lead screw 706 via the rotating shaft 501. The second motor 708 drives the lead screw 706 to rotate through its output end. The external thread of the lead screw 706 meshes with the internal thread of the movable base 707, allowing the movable base 707 to move along the direction of the lead screw 706 when the lead screw 706 rotates. One side of the movable base 707 is fixedly connected to the sliding ring 702 via a rod. When the movable base 707 moves, it drives the sliding ring 702 to move synchronously along the direction of the smoke collection pipe 701. The smoke collection pipe 701 of the end collector 704 of the extension frame 703 is located inside the extension frame 703 and is connected to the smoke collection pipe 701. The ends of the two supports of the extension frame 703 near the smoke collection pipe 701 are respectively connected to the outer wall of the sliding frame and the... The outer wall of the top of the smoke collection pipe 701 is rotatably connected. When the sliding ring 702 slides from the bottom to the top of the smoke collection pipe 701, the ends of the two supports of the extension frame 703 on the side near the smoke collection pipe 701 move closer to each other, and the smoke collection frame extends away from the smoke collection pipe 701. The collector 704 moves away from the smoke collection pipe 701. When the sliding ring 702 slides from the top to the bottom of the smoke collection pipe 701, the ends of the two supports of the extension frame 703 on the side near the smoke collection pipe 701 move away from each other, and the smoke collection frame retracts towards the smoke collection pipe 701. The collector 704 moves closer to the smoke collection pipe 701. By controlling the movement and position of the sliding ring 702, the positions of multiple collectors 704 are adjusted synchronously, so that the position of the collector 704 can dynamically change according to the smoke concentration, and the range of smoke that can be collected is larger.

[0023] It should be noted that the selection of the second motor 708 and the control unit in the above description are selected as needed. This part is well-known technology in the field and will not be described in detail here.

[0024] The mixing mechanism 5 also includes a first motor 503 installed at one end of the mixing pipe 1. The output end of the first motor 503 is fixedly connected to one end of the rotating shaft 501. A first protective shell 504 is fitted over the first motor 503.

[0025] One end of the mixing pipe 1 is connected to a connecting pipe 2, and multiple baffles 10 are installed inside the connecting pipe 2. One end of the connecting pipe 2 is connected to a heat insulation cylinder 3, and one end of the heat insulation cylinder 3 is connected to a gas storage chamber 4.

[0026] It also includes a heat collection mechanism 6, which includes a heat collection tube 601 coiled around the outside of the heat insulation cylinder 3, and a heat release block 602 connected to the end of the heat collection tube 601.

[0027] The top of the gas storage chamber 4 is connected to an exhaust pipe 8, and a flue gas detector 9 is installed on the top of the gas storage chamber 4.

[0028] Specifically, after being drawn into the smoke collection pipe 701 by the collector 704, the flue gas enters the mixing cylinder 1 along the internal pipe direction of the smoke collection pipe 701. The first elevator drives the rotating shaft 501 to rotate through the output end, and the swirl vane 502 rotates with the rotating shaft 501, mixing the flue gas in the mixing cylinder 1 evenly. Then, the flue gas enters the connecting pipe 2 from one end of the mixing cylinder 1. The connecting pipe 2 is equipped with multiple baffles 10 to increase the flow rate of the flue gas. The flue gas moves along the direction of the baffles 10 and enters the heat preservation cylinder 3. The heat preservation cylinder 3 is surrounded by heat collection tubes 601, which collect the heat in the flue 12 and move it along the... The heat is transferred to the heat release block 602 through the pipeline. The heat release block 602 releases heat to keep the internal temperature of the insulation cylinder 3 consistent with that of the flue 12, preventing the internal temperature of the insulation cylinder 3 from dropping and causing condensation. The outer wall of the heat release block 602 has multiple heat release grooves, which greatly increases the contact area between the heat release block 602 and the internal environment of the insulation cylinder 3, making the heat release efficiency of the heat release block 602 higher. The flue gas finally stays in the gas storage chamber 4. The flue gas detector 9 is directly inserted into the gas storage chamber 4 to detect the composition of the flue gas. The exhaust pipe 8 is connected to the external exhaust equipment. When needed, the flue gas can be extracted from the device through the exhaust pipe 8.

[0029] It should be noted that the selection of the first motor 503 and the control unit in the above description are selected as needed. This part is well-known technology in the field and will not be described in detail here.

[0030] It should be noted that the baffle 10 mentioned above is a parallel baffle installed on the inner wall of the shell to increase the fluid velocity and force the fluid to deflect multiple times along a specified path. This extends the flow path length of the shell-side medium, increases the inter-tube flow velocity, and increases the degree of turbulence, thereby improving the heat transfer effect of the heat exchanger. This part is well-known technology in the field and will not be described in detail here.

[0031] It should be noted that the heat collection tube 601 and the heat dissipation block 602 mentioned above are both made of copper. Copper has high thermal conductivity and is often used in scenarios that require rapid heat conduction. This part is a well-known technology in the field and will not be elaborated here.

[0032] It should be noted that the flue gas detector 9 mentioned above is mainly used to detect the concentration of harmful gases and oxygen content in flue gas. It is widely used in environmental monitoring of boilers, chimneys, industrial emissions and other scenarios. The core principle is to use the built-in sensor to convert the chemical or physical properties of the target gas into a measurable electrical signal, and then process and display the concentration value through the electronic system. This part is a well-known technology in the field and will not be elaborated here.

[0033] Working principle: During use, the operator starts the second motor 708 to unfold the extension frame 703 to a suitable position, and starts the collector 704 to collect the flue gas in the flue 12. Then, the operator starts the second motor 708 to mix the collected flue gas. After the device has been running for a period of time, the operator starts the flue gas detector 9 to detect the composition of the flue gas and record the data. Then, the operator starts the second motor 708 again to change the position of the collector 704 and collect flue gas from different positions. The flue gas detector 9 is used again to detect the composition of the flue gas and record the data. The above operation is repeated to obtain flue gas data from different positions in the flue 12 and to perform comprehensive analysis to obtain the test results.

[0034] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A built-in sample gas device, characterized in that, include: A flue (12) is provided with a mixing pipe (1) connected to the inner wall of the flue (12), and a mounting base (11) is provided on the outer wall of the mixing pipe (1). The mixing mechanism (5) includes a rotating shaft (501) disposed inside the mixing cylinder (1). The outer wall of the rotating shaft (501) is provided with a plurality of swirl blades (502) arranged around the axis. The swirl blades (502) are configured to rotate with the rotating shaft (501) to mix the flue gas in the mixing cylinder (1). Among them, the smoke collection mechanism (7) includes a smoke collection pipe (701) installed on the mounting base (11). Multiple extension frames (703) are provided outside the smoke collection pipe (701). The extension frames (703) are configured to be able to unfold away from the smoke collection pipe (701) to expand the smoke collection range.

2. The built-in sample gas device according to claim 1, characterized in that, The mixing mechanism (5) further includes a first motor (503) installed at one end of the mixing pipe (1). The output end of the first motor (503) is fixedly connected to one end of the rotating shaft (501). The first motor (503) is covered with a first protective shell (504).

3. The built-in sample gas device according to claim 1, characterized in that, The outer wall of the smoke collection pipe (701) is fitted with a sliding ring (702), and the end of the extension frame (703) is connected to a collector (704).

4. The built-in sample gas device according to claim 3, characterized in that, The smoke collection mechanism (7) also includes a mounting shell (705) connected to the top of the mounting base (11). A lead screw (706) is rotatably connected to the inner wall of the mounting shell (705). A movable seat (707) is provided outside the lead screw (706). One side of the movable seat (707) is connected to the outer wall of the sliding ring (702).

5. The built-in sample gas device according to claim 4, characterized in that, The second motor (708) is fixedly installed on the top of the mounting shell (705). The output end of the second motor (708) is fixedly connected to one end of the lead screw (706). The second motor (708) is covered with a second protective shell (709).

6. The built-in sample gas device according to claim 1, characterized in that, One end of the mixing pipe (1) is connected to a connecting pipe (2), and multiple baffles (10) are provided inside the connecting pipe (2). One end of the connecting pipe (2) is connected to a heat insulation cylinder (3), and one end of the heat insulation cylinder (3) is connected to a gas storage chamber (4).

7. A built-in sample gas device according to claim 6, characterized in that, Also includes: The heat collection mechanism (6) includes a heat collection tube (601) coiled around the outside of the heat insulation cylinder (3), and a heat release block (602) is connected to the end of the heat collection tube (601).

8. A built-in sample gas device according to claim 6, characterized in that, The top of the gas storage chamber (4) is connected to an exhaust pipe (8), and a flue gas detector (9) is installed on the top of the gas storage chamber (4).

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