Flue gas sampling device

Abstract

The utility model relates to a flue gas sampling device which comprises a base, a sampling pipe, a filtering piece and a first driving piece, a first through hole is formed in the base in a penetrating mode, the sampling pipe penetrates through the first through hole and is fixedly connected with the base, and the filtering piece is used for filtering and collecting solid impurities in flue gas; the filter part is movably mounted in the sampling pipe along the axial direction of the sampling pipe, and the first driving part is connected with the filter part and is used for driving the filter part to move along the axial direction of the sampling pipe, so that the filter part is moved into the sampling pipe or moved out of the sampling pipe. The flue gas sampling device is used for capturing impurities in flue gas and improving the flue gas detection precision.

Description

Technical Field

[0001] The present disclosure relates to the technical field of smoke detection, and in particular, to a smoke sampling device. Background Art

[0002] When thermal power is generated, it is necessary to burn coal and other materials to generate high temperatures and then convert them into electricity. During the combustion process, a large amount of flue gas will be generated. Although the flue gas has been initially filtered when it is discharged, in order to ensure that the discharged flue gas can reduce pollution to the surrounding environment, it is necessary to regularly set up corresponding sampling devices around the power plant to sample the flue gas discharged by the current power plant, and conduct corresponding harmful substance tests on the samples after sampling. When sampling the flue gas, since the sampling device cannot collect the solid impurities in the current flue gas, it is impossible to fully capture and identify the impurities in the current flue gas, which affects the subsequent test results of the flue gas. Utility Model Content

[0003] The purpose of the present invention is to provide a smoke sampling device for collecting solid impurities in smoke and improving the accuracy of smoke detection.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a flue gas sampling device, including a base, a sampling tube, a filter element and a first driving element. The base is penetrated by a first through hole, the sampling tube passes through the first through hole and is fixedly connected to the base, the filter element is used to filter and collect solid impurities in the flue gas, the filter element is movably installed in the sampling tube along the axial direction of the sampling tube, and the first driving element is connected to the filter element, and is used to drive the filter element to move along the axial direction of the sampling tube so that the filter element moves into or out of the sampling tube.

[0005] Optionally, the sampling tube includes a first tube segment and a second tube segment, the ends of the first tube segment and the second tube segment that are close to each other are sealed and connected to the first through hole, the other end of the first tube segment is open to form a sampling port, and the other end of the second tube segment is a closed end, a second through hole is formed at the closed end, and the first driving member is passed through the second through hole and is sealed and connected to the second through hole.

[0006] Optionally, the first driving member includes an adjusting rod and a piston seat, the piston seat is arranged in the sampling tube, the adjusting rod is passed through the second through hole, the first end of the adjusting rod extends out of the sampling tube from the second through hole, and the second end of the adjusting tube is connected to the piston seat, wherein the adjusting rod is threadedly connected to the second through hole.

[0007] Optionally, the first driving member further includes a knob, and the knob is connected to the first end of the adjusting rod.

[0008] Optionally, the smoke sampling device also includes a sealing structure, a slot is provided on the base, and the sealing structure includes a sealing plate, and the sealing plate is configured to be movably arranged in the slot along a direction perpendicular to the axial direction of the sampling tube, so that the sealing plate has a sealing position, and in the sealing position, the sealing plate, the filter element and the corresponding parts of the sampling tube enclose a smoke containing cavity.

[0009] Optionally, the sealing structure also includes a connecting rod and a second driving member, a bracket is provided on the base, one end of the connecting rod is connected to the bracket, a socket is provided on the sealing plate, the socket extends in a direction perpendicular to the axial direction of the sampling tube, the sealing plate is movably connected to the other end of the connecting rod through the socket, and the second driving member is used to drive the sealing plate to move on the connecting rod so that the sealing plate can be inserted into or removed from the slot.

[0010] Optionally, the second driving member includes a spring and an electromagnetic ring, the spring is sleeved on the connecting rod, two ends of the spring are respectively abutted against the bracket and the sealing plate, the spring is used to provide an elastic force that makes the sealing plate be in the sealing position, the electromagnetic ring is installed on the bracket and arranged opposite to the slot, and the electromagnetic ring is configured to adsorb the sealing plate when energized so that the sealing plate moves out of the slot in a direction away from the sampling tube.

[0011] Optionally, the number of the connecting rods is two, the number of the insertion holes is two, and the blocking plate is movably connected to the two connecting rods via the two insertion holes.

[0012] Optionally, there are two sealing structures, which are arranged on opposite sides of the base, wherein sealing gaskets are provided on the side walls where the sealing plate of one of the two sealing structures and the sealing plate of the other sealing structure are aligned.

[0013] Optionally, the sampling tube is detachably connected to a focusing hood, and the focusing hood is in the shape of a trumpet with an air inlet at a large end and an air outlet at a small end.

[0014] Through the above technical solution, the flue gas enters the flue gas filter device from the sampling tube, and the solid impurities in the flue gas are filtered through the filter element. The filter element is driven by the driving element to move along the axial direction of the sampling tube until the filter element moves out of the sampling tube, thereby solving the problem in the related technology that solid impurities cannot be filtered and captured when the flue gas is captured, which affects the flue gas measurement results.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic structural diagram of a smoke sampling device provided by an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a structural schematic diagram of a smoke sampling device provided by an exemplary embodiment of the present disclosure from another perspective;

[0019] Figure 3 is a cross-sectional schematic diagram of a smoke sampling device provided by an exemplary embodiment of the present disclosure;

[0020] Figure 4 is a top view of a smoke sampling device provided by an exemplary embodiment of the present disclosure;

[0021] Figure 5 is a schematic diagram of a partial structure of a smoke sampling device provided by an exemplary embodiment of the present disclosure;

[0022] Figure 6 It is a schematic diagram of a partial structure of a smoke sampling device provided by an exemplary embodiment of the present disclosure.

[0023] Description of Reference Numerals

[0024] 1-smoke sampling device; 2-base; 21-slot; 22-bracket; 3-sampling tube; 31-first tube section; 32-second tube section; 33-sampling port; 34-second through hole; 4-filter; 5-first drive member; 51-adjusting rod; 52-piston seat; 53-knob; 6-sealing structure; 61-sealing plate; 611-jack; 62-connecting rod; 63-second drive member; 631-spring; 632-electromagnetic ring; 7-collecting hood. DETAILED DESCRIPTION

[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0026] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] In the present disclosure, unless otherwise indicated, directional words such as "upper" and "lower" are generally used in conjunction with the accompanying drawings (such as Figure 1 ) is defined by the drawing direction of the sample tube, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present disclosure. "Inside and outside" refer to the inside and outside of the contour of the corresponding component. For example, inside the sampling tube refers to the hollow pipe inside the sampling tube. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be an internal connection between two elements or an interaction relationship between two elements; for ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0029] See also Figure 1-Figure 6 The smoke sampling device 1 provided in the present disclosure includes a base 2, a sampling tube 3, a filter element 4 and a first driving element 5, wherein a first through hole is formed through the base 2, the sampling tube 3 passes through the first through hole and is fixedly connected to the base 2, the filter element 4 is used to filter and collect solid impurities in the smoke, the filter element 4 is movably installed in the sampling tube 3 along the axial direction of the sampling tube 3, and the first driving element 5 is connected to the filter element 4, and is used to drive the filter element 4 to move along the axial direction of the sampling tube 3, so that the filter element 4 moves into the sampling tube 3 or moves out of the sampling tube 3.

[0030] The flue gas enters the sampling tube 3 of the flue gas sampling device 1, and after the solid impurities in the flue gas are filtered by the filter element 4, the filter element 4 is driven by the driving element to be removed from the sampling tube 3, thereby completing the filtering of the solid impurities in the flue gas.

[0031] Through the above-mentioned specific structure, the flue gas enters the flue gas filter device from the sampling tube 3, and the solid impurities in the flue gas are filtered through the filter element 4. The filter element 4 is driven by the driving element to move along the axial direction of the sampling tube 3 until the filter element 4 moves out of the sampling tube 3, which solves the problem that the solid impurities cannot be filtered and captured when the flue gas is captured in the related technology, resulting in the influence of the flue gas detection result. For example, the flue gas sampling device 1 is used to collect a preset amount of flue gas, and the composition and content of the solid impurities in the preset amount of flue gas collected by the filter element 4 are used to calculate the proportion of the relevant solid impurities in the flue gas, so as to determine whether the discharged flue gas meets the environmental protection standard, which is conducive to improving the detection accuracy of the flue gas during subsequent inspections.

[0032] The present disclosure does not limit the specific structure of the filter element 4 , and the filter element 4 may be a filter element with a filter screen, or a filter element with activated carbon, so as to filter out solid impurities.

[0033] In one embodiment of the present disclosure, the sampling tube 3 includes a first tube section 31 and a second tube section 32. The ends of the first tube section 31 and the second tube section 32 that are close to each other are sealed and connected to the first through hole. The other end of the first tube section 31 is open to form a sampling port 33. The flue gas enters the sampling tube 3 from the sampling port 33. The other end of the second tube section 32 is formed as a closed end. The closed end is formed with a second through hole 34. The first driving member 5 is penetrated through the second through hole 34 and is sealed and connected to the second through hole 34.

[0034] In order to drive the filter element 4 to move axially along the sampling tube 3, the first driving element 5 includes an adjusting rod 51 and a piston seat 52. The piston seat 52 is arranged in the sampling tube 3. The adjusting rod 51 is penetrated by the second through hole 34. The first end of the adjusting rod 51 extends out of the sampling tube 3 from the second through hole 34. The second end of the adjusting rod 51 is connected to the piston seat 52, and the adjusting rod 51 is threadedly connected to the second through hole 34.

[0035] The first driving member 5 further includes a knob 53 , which is connected to the first end of the adjusting rod 51 .

[0036] After the smoke is filtered by the filter element 4, the knob 53 connected to the first end of the adjusting rod 51 is rotated, and the adjusting rod 51 is screwed into the sampling tube 3, driving the piston seat 52 connected to the second end of the adjusting rod 51 to move toward the sampling port 33 of the sampling tube 3, and the filter element 4 arranged on the piston seat 52 moves toward the sampling port 33 of the sampling tube 3 synchronously until the filter element 4 is removed from the sampling port 33.

[0037] In order to contain the flue gas entering the sampling tube 3, please refer to Figure 1-Figure 5 The smoke sampling device 1 also includes a sealing structure 6. A slot 21 is provided on the base 2. The sealing mechanism includes a sealing plate 61. The sealing plate 61 is configured to be movably arranged in the slot 21 along a direction perpendicular to the axial direction of the sampling tube 3, so that the sealing plate 61 has a sealing position. In the sealing position, the sealing plate 61, the filter element 4 and the corresponding parts of the sampling tube 3 enclose a smoke containing chamber. The smoke is filtered by the filter element 4 and is contained in the smoke containing chamber. When it is necessary to measure the smoke after filtering out solid impurities, the sealing plate 61 is removed from the slot 21 to release the sealing of the smoke, and the smoke flows out from the sampling port 33 of the sampling tube 3 and enters the external smoke detection device for measurement.

[0038] In one embodiment of the present disclosure, the sealing structure 6 also includes a connecting rod 62 and a second driving member 63. A bracket 22 is provided on the base 2. One end of the connecting rod 62 is connected to the bracket 22. A socket 611 is provided on the sealing plate 61. The socket 611 extends in a direction perpendicular to the axial direction of the sampling tube 3. The sealing plate 61 is movably connected to the other end of the connecting rod 62 through the socket 611. The second driving member 63 is used to drive the sealing plate 61 to move on the connecting rod 62 so that the sealing plate 61 can be inserted into or removed from the slot 21.

[0039] The baffle plate 61 cooperates with the connecting rod 62 connected to the bracket 22 and the socket 611 on the baffle plate 61, so that the baffle plate 61 moves in a direction perpendicular to the axial direction of the sampling tube 3. Driven by the second driving member 63, the baffle plate 61 moves in or out of the slot 21 of the base 2. When the baffle plate 61 moves into the slot 21, the interior of the sampling tube 3 is divided into two parts by the baffle plate 61. The flue gas near the closed end of the sampling tube 3 is filtered of solid impurities by the filter element 4. After the external flue gas detection device is connected, the baffle plate 61 is removed from the slot 21, and the flue gas circulates and enters the external flue gas detection device to complete the measurement.

[0040] In order to drive the sealing plate 61 to be inserted into or removed from the slot 21, the second driving member 63 includes a spring 631 and an electromagnetic ring 632. The spring 631 is sleeved on the connecting rod 62. The two ends of the spring 631 are respectively abutted against the bracket 22 and the sealing plate 61. The spring 631 is used to provide an elastic force that makes the sealing plate 61 in the blocking position. The electromagnetic ring 632 is installed on the bracket 22 and is arranged opposite to the slot 21. The electromagnetic ring 632 is arranged to adsorb the sealing plate 61 when power is turned on, so that the sealing plate 61 is moved out of the slot 21 in the direction away from the sampling tube 3.

[0041] In one embodiment of the present disclosure, the number of the connecting rods 62 is two, and the number of the insertion holes 611 is correspondingly set to two, and the blocking plate 61 is movably connected to the two connecting rods 62 through the two insertion holes 611 .

[0042] By providing two connecting rods 62 and the insertion hole 611 , it is ensured that the sealing plate 61 is stably inserted into or removed from the slot 21 , and the sealing plate 61 is prevented from rotating or moving in other directions.

[0043] In order to improve the sealing effect, there are two sealing structures 6, and the two sealing structures 6 are arranged on opposite sides of the base 2, wherein a sealing gasket is provided on the side wall where the sealing plate 61 of one of the two sealing structures 6 and the sealing plate 61 of the other sealing structure 6 correspond to each other.

[0044] The sealing structures 6 correspondingly arranged on both sides of the base 2 abut at the sealing position, and sealing gaskets are also arranged at the abutting positions of the sealing plates 61 of the two sealing structures 6 to ensure that no gap is generated at the abutting positions of the two sealing plates 61, thereby effectively improving the sealing effect.

[0045] In one embodiment of the present disclosure, the sampling port 33 of the sampling tube 3 is detachably connected to the focusing cover 7, and the focusing cover 7 is in the shape of a trumpet with the air inlet at the large end and the air outlet at the small end.

[0046] The smoke enters from the sampling port 33 of the sampling tube 3. The focusing cover 7 detachably arranged at the sampling port 33 has an air inlet at the large end. The air inlet at the large end effectively increases the smoke intake of the sampling tube 3 and improves the smoke capture efficiency.

[0047] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction.

[0049] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A flue gas sampling device, characterized in that: include: A base, a sampling tube, a filter element and a first driving element. The base is penetrated by a first through hole. The sampling tube passes through the first through hole and is fixedly connected to the base. The filter element is used to filter and collect solid impurities in the flue gas. The filter element is movably installed in the sampling tube along the axial direction of the sampling tube. The first driving element is connected to the filter element and is used to drive the filter element to move along the axial direction of the sampling tube so that the filter element moves into or out of the sampling tube.

2. The smoke sampling device according to claim 1, characterized in that: The sampling tube includes a first tube section and a second tube section, wherein one end of the first tube section and the second tube section that is close to each other is sealed and connected to the first through hole, the other end of the first tube section is open to form a sampling port, and the other end of the second tube section is formed as a closed end, wherein a second through hole is formed at the closed end, and the first driving member is passed through the second through hole and is sealed and connected to the second through hole.

3. The smoke sampling device according to claim 2, characterized in that: The first driving member comprises an adjusting rod and a piston seat, wherein the piston seat is arranged in the sampling tube, the adjusting rod is passed through the second through hole, the first end of the adjusting rod extends out of the sampling tube from the second through hole, and the second end of the adjusting rod is connected to the piston seat; Wherein, the adjusting rod is threadedly connected to the second through hole.

4. The smoke sampling device according to claim 3, characterized in that: The first driving member further includes a knob connected to the first end of the adjusting rod.

5. The smoke sampling device according to any one of claims 1 to 4, characterized in that: The smoke sampling device also includes a blocking structure; A slot is provided on the base, and the sealing structure includes a sealing plate, which is configured to be movably arranged in the slot along a direction perpendicular to the axial direction of the sampling tube, so that the sealing plate has a sealing position. In the sealing position, the sealing plate, the filter element and the corresponding parts of the sampling tube enclose a smoke containing chamber.

6. The smoke sampling device according to claim 5, characterized in that: The blocking structure further comprises a connecting rod and a second driving member, and a bracket is arranged on the base; One end of the connecting rod is connected to the bracket, and a plug hole is provided on the sealing plate, the plug hole extends in a direction perpendicular to the axial direction of the sampling tube, and the sealing plate is movably connected to the other end of the connecting rod through the plug hole; The second driving member is used to drive the blocking plate to move on the connecting rod so that the blocking plate is inserted into the slot or removed from the slot.

7. The smoke sampling device according to claim 6, characterized in that: The second driving member includes a spring and an electromagnetic ring, the spring is sleeved on the connecting rod, two ends of the spring are respectively in contact with the bracket and the blocking plate, and the spring is used to provide an elastic force that enables the blocking plate to be in the blocking position; The electromagnetic ring is mounted on the bracket and arranged opposite to the slot. The electromagnetic ring is configured to absorb the sealing plate when powered on, so that the sealing plate moves out of the slot in a direction away from the sampling tube.

8. The smoke sampling device according to claim 6, characterized in that: The number of the connecting rods is two, the number of the inserting holes is two, and the blocking plate is movably connected to the two connecting rods through the two inserting holes.

9. The smoke sampling device according to claim 5, characterized in that: The number of the blocking structures is two, and the two blocking structures are arranged on opposite sides of the base; Wherein, sealing gaskets are provided on the side walls where the sealing plate of one of the two sealing structures and the sealing plate of the other sealing structure are matched.

10. The smoke sampling device according to any one of claims 1 to 4, characterized in that: The sampling tube is detachably connected with a flow collector, and the shape of the flow collector is a trumpet shape with an air inlet at a large end and an air outlet at a small end.

Images