Rotary smoke dust sampling probe

Abstract

The utility model provides a rotary smoke dust sampling probe, which comprises a sampling pipe welding assembly, a sampling pipe welding assembly and a smoke dust sampling assembly, one end of the smoke sampling probe is connected with the instrument host, and the other end of the smoke sampling probe is connected with the sampling pipe welding assembly; the second flange plate is mounted on the smoke dust sampling probe, and the sampling pipe welding assembly is mounted on the third flange plate; a plurality of butt joint hole positions are formed in the sampling pipe welding assembly and the third flange plate and are used for adjusting the mounting angle of the sampling pipe welding assembly; the sampling pipe welding assembly comprises a sampling bent pipe, and a bent pipe air nozzle is adjusted by rotating the angle of the sampling pipe welding assembly to be aligned to the flow direction of flue gas. The rotary smoke dust sampling probe disclosed by the utility model has higher flexibility, better sealing performance, stronger environmental adaptability and more perfect pretreatment function, is beneficial to improving the precision and efficiency of online monitoring of the concentration of smoke dust particulate matters and reducing the operation and maintenance cost, and is suitable for smoke dust sampling operation under complex industrial environment conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of online pollution source emission monitoring, in particular to a rotary smoke sampling probe. Background Art

[0002] In the existing online pollution source emission monitoring system, accurate measurement of smoke particle concentration is of great significance for environmental protection and industrial production process control. Traditional smoke sampling probes often have certain limitations, such as:

[0003] 1. Lack of flexibility: Traditional sampling probes do not have a rotation function and cannot quickly and accurately adjust the sampling angle according to changes in the flue gas flow field, resulting in poor representativeness of the sampling.

[0004] 2. Limited pre-processing capability: During the sampling process, the existing probes do not handle the humidity of the flue gas ideally, and the presence of moisture may interfere with the measurement results of the particle concentration.

[0005] 3. Sealing performance issues: In existing equipment, the sealing materials for flange connections and pipe interfaces are not properly selected or the structural design is not perfect, which may cause smoke leakage or the external environment to affect the sampling effect.

[0006] 4. Temperature control defects: The existing sampling probes lack built-in temperature measurement and adjustment devices and cannot perform real-time temperature compensation for flue gas, resulting in a lack of consistency in the data collected under different temperature conditions.

[0007] 5. Inconvenient assembly and adjustment: In the prior art, the connection structure between the probe and the instrument host is complex, especially when the probe angle needs to be frequently adjusted or disassembled for maintenance, the operation is cumbersome, which is not conducive to rapid response and efficient operation and maintenance.

[0008] Therefore, the prior art has deficiencies and needs further improvement. Utility Model Content

[0009] In view of the problems existing in the prior art, the utility model provides a rotary smoke sampling probe.

[0010] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0011] The utility model provides a rotary smoke sampling probe, comprising:

[0012] Sampling tube welding assembly, used for sampling smoke;

[0013] A smoke sampling probe, one end of which is connected to the instrument host, and the other end is connected to the sampling tube welding assembly;

[0014] The smoke sampling probe and the sampling tube welding assembly are connected via a second flange and a third flange;

[0015] The second flange is installed on the smoke sampling probe, the sampling tube welding assembly is installed on the third flange, and the second flange is connected to the third flange by a first bolt;

[0016] The sampling tube welding assembly and the third flange are provided with a plurality of docking holes for adjusting the installation angle of the sampling tube welding assembly;

[0017] The sampling tube welding assembly comprises a sampling elbow, and a elbow air nozzle is arranged at the front end of the elbow. The elbow air nozzle is adjusted to align with the flue gas flow direction by rotating the angle of the sampling tube welding assembly.

[0018] Furthermore, the smoke sampling probe further comprises: a first steel pipe and a first flange;

[0019] A second flange is provided at one end of the first steel pipe and a first flange is provided at the other end;

[0020] The first flange is connected to the instrument host, and the second flange is connected to the third flange.

[0021] Furthermore, the first steel pipe is also provided with: an inlet sampling pipe and an outlet sampling pipe;

[0022] The inlet sampling tube and the outlet sampling tube are arranged parallel to each other and are connected at one side.

[0023] Furthermore, the sampling tube welding assembly includes: a second steel tube, a sampling elbow, a pressure measuring elbow, and a flue gas PT100 casing;

[0024] One end of the sampling elbow, pressure measuring elbow, and flue gas PT100 sleeve is arranged on the third flange, connected to the smoke sampling probe through the third flange and then connected to the instrument host, and the other end extends to the outside of the second steel pipe for collecting smoke;

[0025] The sampling elbow is connected to the inlet sampling tube.

[0026] Furthermore, a sampling PT100 sleeve is also provided inside the second steel pipe for temperature measurement.

[0027] Furthermore, a heating rod sleeve is provided inside the second steel pipe for heating the flue gas to remove moisture.

[0028] Furthermore, the elbow air nozzle is perpendicular to the axial direction of the sampling tube welding assembly.

[0029] Furthermore, a PTFE gasket is provided at the connection between the second steel pipe and the third flange for sealing;

[0030] Fluorine rubber gaskets are provided at the connection points between the inlet sampling tube, the outlet sampling tube and the third flange;

[0031] The connections between the inlet sampling tube, the outlet sampling tube and the first flange are all provided with fluororubber sealing rings.

[0032] Furthermore, a plurality of high-temperature waterproof connectors are provided on the side wall of the first steel pipe for connecting the cables of the instrument host;

[0033] Asbestos gaskets are arranged on both sides of the third flange.

[0034] Further, a swivel block is provided on the third flange, and a hexagon socket screw is provided on the second flange. The swivel block is rotatably mounted on the hexagon socket screw. Before the second flange and the third flange are fixed by the first bolt, the second flange and the third flange are rotatably connected.

[0035] Without disassembling the main unit, you can just remove the first bolt on the flange to rotate the smoke sampling probe to a certain angle, so as to facilitate the replacement of the heating rod, PT100 or pressure measuring tube inside. After installing the first bolt, smoke will not leak into the smoke sampling probe.

[0036] The technical solution of the utility model has the following beneficial effects:

[0037] 1. Flexible adjustment of sampling angle: The sampling tube welding assembly is provided with a plurality of docking holes on the third flange plate, and the sampling tube welding assembly can conveniently adjust the installation angle so that the elbow nozzle can be accurately aligned with the flue gas flow direction, thereby improving the pertinence and effectiveness of smoke sampling.

[0038] 2. Compact and integrated structure: The flange connection between the smoke sampling probe and the sampling tube welding assembly is convenient for assembly and disassembly, which enhances the overall stability of the equipment and is conducive to adapting to different working conditions.

[0039] 3. Flue gas pretreatment function: The built-in heating rod sleeve can remove moisture from the flue gas, ensuring that the sampling results are not affected by the humidity of the flue gas, thereby improving the accuracy and reliability of the measurement.

[0040] 4. Multifunctional integration: In addition to the basic sampling function, it is also equipped with a pressure measuring elbow and a flue gas PT100 sleeve, which can monitor the flow and temperature of the flue gas in real time and provide more comprehensive flue gas parameter information.

[0041] 5. Excellent sealing performance: PTFE gaskets and fluorine rubber gaskets / sealing rings are used at the flange connection to effectively prevent smoke leakage, ensure the airtightness of the sampling system, and also improve the service life of the equipment.

[0042] 6. Safe and efficient cable connection: The high-temperature waterproof connector installed on the side wall of the first steel pipe ensures the reliable access of the cable between the instrument host and the probe, adapting to the high temperature environment while reducing the risk of failure caused by factors such as water vapor.

[0043] 7. Easy to operate and maintain: Through the design of the rotating block and the hexagon socket screw, the sampling tube welding assembly can rotate relative to the smoke sampling probe. This rotatable connection structure greatly simplifies on-site operation and equipment maintenance and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the utility model installed on a chimney;

[0045] Figure 2 It is a three-dimensional diagram of the utility model;

[0046] Figure 3 It is a cross-sectional view of the utility model;

[0047] Figure 4 It is a three-dimensional diagram of the sampling tube welding assembly of the utility model;

[0048] Figure 5 It is a cross-sectional view of the sampling tube welding assembly of the utility model.

[0049] In the figure:

[0050] 1. Sampling tube welding assembly;

[0051] 101. third flange; 102. second bolt;

[0052] 103, second steel pipe; 104, sampling elbow; 1041, elbow gas nozzle; 105, pressure measuring elbow; 106, flue gas PT100 casing;

[0053] 107. Sampling PT100 casing; 108. Heating rod casing;

[0054] 109. Asbestos gasket;

[0055] 110, rotating block; 111, first bolt;

[0056] 2. Smoke sampling probe;

[0057] 201, second flange; 202, first steel pipe; 203, first flange;

[0058] 204, inlet sampling tube; 205, outlet sampling tube;

[0059] 206. High temperature waterproof joint;

[0060] 207, PTFE gasket; 208, fluororubber gasket; 209, fluororubber sealing ring;

[0061] 210, Hexagon socket screw;

[0062] 3. Instrument host;

[0063] 4. Chimney. DETAILED DESCRIPTION

[0064] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0065] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0067] In the description of this embodiment, the terms "upper", "lower", "front", "back", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0068] Combination Figure 1-Figure 5As shown, the utility model provides a rotary smoke sampling probe, comprising: a sampling tube welding assembly 1 for sampling smoke; a smoke sampling probe 2, one end of which is connected to the instrument host 3, and the other end is connected to the sampling tube welding assembly 1; the smoke sampling probe 2 is connected to the sampling tube welding assembly 1 through a second flange 201 and a third flange 101; the second flange 201 is installed on the smoke sampling probe 2, and the sampling welding assembly 1 is installed on the third flange 101 through a second bolt 102, and the second flange 201 and the third flange 101 are connected through a first bolt 111; the third flange 101 and the sampling tube welding assembly 1 are provided with a plurality of docking holes for adjusting the installation angle of the sampling tube welding assembly 1; the sampling tube welding assembly 1 comprises a sampling elbow 104, and a elbow air nozzle 1041 is provided at the front end of the sampling elbow 104, and the elbow air nozzle 1041 is adjusted to align with the smoke flow direction by rotating the angle of the sampling tube welding assembly 1.

[0069] The smoke sampling probe 2 also includes: a first steel pipe 202 and a first flange 203; a second flange 201 is provided at one end of the first steel pipe 202 and a first flange 203 is provided at the other end; the first flange 203 is connected to the instrument host 3, and the second flange 201 is connected to the third flange 101. The first steel pipe 202 is also provided with: an inlet sampling pipe 204 and an outlet sampling pipe 205; the inlet sampling pipe 204 and the outlet sampling pipe 205 are arranged in parallel with each other and are connected at one side.

[0070] The sampling tube welding assembly 1 includes: a second steel tube 103, a sampling elbow 104, a pressure measuring elbow 105, and a flue gas PT100 sleeve 106; one end of the sampling elbow 104, the pressure measuring elbow 105, and the flue gas PT100 sleeve 106 is set on the third flange 101, connected to the smoke sampling probe 2 through the third flange 101 and then connected to the instrument host 3, and the other end extends to the outside of the second steel tube 103 for collecting smoke; the sampling elbow 104 is connected to the inlet and outlet sampling tube 204. A sampling PT100 sleeve 107 is also provided inside the second steel tube 103 for temperature measurement. A heating rod sleeve 108 is also provided inside the second steel tube 103 for heating the flue gas to remove moisture. The elbow gas nozzle 1041 is perpendicular to the axial direction of the sampling tube welding assembly 1.

[0071] A PTFE gasket 207 is provided at the connection between the second steel pipe 103 and the third flange 101 for sealing; a fluororubber gasket 208 is provided at the connection between the inlet sampling tube 204, the outlet sampling tube 205 and the third flange 101, and the sampling tube welding assembly 1; a fluororubber sealing ring 209 is provided at the connection between the inlet sampling tube 204, the outlet sampling tube 205 and the first flange 203.

[0072] A plurality of high-temperature waterproof connectors 206 are also provided on the side wall of the first steel pipe 202 for connecting cables of the instrument host 3 ; asbestos gaskets 109 are provided on both sides of the third flange 101 .

[0073] The third flange 101 is provided with a swivel block 110 , and the second flange 201 is provided with a hexagon socket screw 210 . The swivel block 110 is rotatably mounted on the hexagon socket screw 210 . Before the second flange 201 and the third flange 101 are fixed by the first bolt 111 , the second flange 201 and the third flange 101 are rotatably connected.

[0074] The principle of this utility model is as follows:

[0075] 1. Sampling positioning and orientation: The rotary smoke sampling probe is connected to the smoke sampling probe 2 through the sampling tube welding assembly 1, and the two are connected by the third flange 101 through the first bolt 111, and the flange is provided with docking holes, allowing the user to adjust the angle of the sampling tube welding assembly 1 according to the direction of the flue gas flow, ensuring that the elbow nozzle 1041 at the front end of the sampling elbow 104 can be accurately aligned with the flue gas flow, thereby effectively capturing the smoke sample.

[0076] 2. Smoke sampling process: During sampling, smoke enters through the sampling elbow 104, and then is transmitted to the instrument host 3 for analysis through the connected inlet sampling tube 204. At the same time, the outlet sampling tube 205 is used to discharge the smoke after analysis and measurement into the chimney.

[0077] 3. Multi-dimensional data collection: The sampling tube welding assembly 1 integrates the pressure measuring elbow 105 and the flue gas PT100 sleeve 106, which can monitor the flow change and temperature of the flue gas in real time. Among them, the sampling PT100 sleeve 107 is directly inserted into the flue gas to measure the temperature, ensuring that the key parameters of the flue gas state can be obtained while sampling the smoke.

[0078] 4. Flue gas pretreatment: A heating rod sleeve 108 is installed inside the second steel pipe 103. When the flue gas passes through, the moisture in the flue gas can be removed by heating, so as to more accurately measure the concentration of smoke particles and reduce the influence of moisture on the detection results.

[0079] 5. Sealing and safety: Strict sealing measures are taken at the joints of the entire device. For example, the joints between the second steel pipe 103 and the third flange 101 are sealed with PTFE gaskets 207, and the joints between the inlet sampling tube 204 and the outlet sampling tube 205 and the flange are sealed with fluororubber gaskets 208 or fluororubber sealing rings 209 to ensure that there is no gas leakage during the sampling process. In addition, the high-temperature waterproof joint 206 on the side wall of the first steel pipe 202 ensures the safe and reliable connection with the cable of the instrument host 3.

[0080] 6. Structural flexibility: By cooperating with the rotating block 110 on the third flange 101 and the hexagon socket screw 210 on the second flange 201, the sampling tube welding assembly 1 can be freely rotated before the first bolt 111 is fixed, so that the probe can be flexibly adjusted according to actual needs, greatly enhancing the applicability and convenience of the equipment.

[0081] In summary, the patented rotary smoke sampling probe, through a series of precisely designed structural components, can not only accurately locate and effectively sample smoke, but also has functions such as smoke pretreatment, multi-parameter simultaneous monitoring, good sealing and rotation adjustment, thereby improving the accuracy of online monitoring of smoke particle concentration and the practicality of the equipment.

[0082] The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the protection scope of the present invention.

Claims

1. A rotary smoke sampling probe, characterized in that: include: Sampling tube welding assembly, used for sampling smoke; A smoke sampling probe, one end of which is connected to the instrument host, and the other end is connected to the sampling tube welding assembly; The smoke sampling probe and the sampling tube welding assembly are connected via a second flange and a third flange; The second flange is installed on the smoke sampling probe, the sampling tube welding assembly is installed on the third flange, and the second flange is connected to the third flange by a first bolt; The sampling tube welding assembly and the third flange are provided with a plurality of docking holes for adjusting the installation angle of the sampling tube welding assembly; The sampling tube welding assembly comprises a sampling elbow, and a elbow air nozzle is arranged at the front end of the elbow. The elbow air nozzle is adjusted to align with the flue gas flow direction by rotating the angle of the sampling tube welding assembly.

2. The rotary smoke sampling probe according to claim 1, characterized in that: The smoke sampling probe further includes: a first steel pipe and a first flange; A second flange is provided at one end of the first steel pipe and a first flange is provided at the other end; The first flange is connected to the instrument host, and the second flange is connected to the third flange.

3. The rotary smoke sampling probe according to claim 2, characterized in that: The first steel pipe is also provided with: an inlet sampling pipe and an outlet sampling pipe; The inlet sampling tube and the outlet sampling tube are arranged parallel to each other and are connected at one side.

4. The rotary smoke sampling probe according to claim 3, characterized in that: The sampling tube welding assembly includes: a second steel pipe, a sampling elbow, a pressure measuring elbow, and a flue gas PT100 sleeve; One end of the sampling elbow, pressure measuring elbow, and flue gas PT100 sleeve is arranged on the third flange, connected to the smoke sampling probe through the third flange and then connected to the instrument host, and the other end extends to the outside of the second steel pipe for collecting smoke; The sampling elbow is connected to the inlet sampling tube.

5. The rotary smoke sampling probe according to claim 4, characterized in that: A sampling PT100 sleeve is also provided inside the second steel pipe for temperature measurement.

6. The rotary smoke sampling probe according to claim 4, characterized in that: The interior of the second steel pipe is also provided with a heating rod sleeve for heating the flue gas to remove moisture.

7. The rotary smoke sampling probe according to claim 1, characterized in that: The elbow air nozzle is perpendicular to the axial direction of the sampling tube welding assembly.

8. The rotary smoke sampling probe according to claim 4, characterized in that: A PTFE gasket is provided at the connection between the second steel pipe and the third flange for sealing; Fluorine rubber gaskets are provided at the connection points between the inlet sampling tube, the outlet sampling tube and the third flange; Fluorine rubber sealing rings are arranged at the connections between the inlet sampling tube, the outlet sampling tube and the first flange.

9. The rotary smoke sampling probe according to claim 8, characterized in that: A number of high-temperature waterproof connectors are also provided on the side wall of the first steel pipe for connecting cables of the instrument host; Asbestos gaskets are arranged on both sides of the third flange.

10. The rotary smoke sampling probe according to claim 1, characterized in that: The third flange is provided with a swivel block, and the second flange is provided with a hexagon socket screw. The swivel block is rotatably mounted on the hexagon socket screw. Before the second flange and the third flange are fixed by the first bolt, the second flange and the third flange are rotatably connected.

Images