Corrosion-resistant dust meter sampling probe

Abstract

The utility model provides a corrosion-resistant sampling probe of a dust meter. The corrosion-resistant sampling probe comprises a welding flange assembly, a probe heating assembly, a composite sampling probe rod assembly and a sampling probe assembly, the welding flange assembly comprises a first flange plate, a first sleeve and a second flange plate. The first flange plate and the second flange plate are installed on the left side and the right side of the first sleeve respectively. The first flange plate is mounted on the smoke dust tester host; and the second flange plate is connected with the probe heating assembly. According to the utility model, non-metal composite materials, especially corrosion-resistant materials such as engineering plastics and the like are adopted, so that the durability of the sampling probe under severe working conditions is remarkably improved, the service life is effectively prolonged, and the maintenance and replacement cost caused by corrosion is reduced; the integrated probe heating assembly comprises a heater and a heating temperature control temperature sensor, can be automatically adjusted to a proper working temperature in various environments, guarantees the sampling efficiency and the measurement precision, and is especially suitable for low-temperature or high-humidity complex working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection equipment, in particular to a corrosion-resistant dust meter sampling probe. Background Art

[0002] Traditional dust monitor sampling probes are prone to corrosion and shortened service life when used for a long time in an environment containing corrosive gases or particulate matter. In addition, stability and accuracy are also challenged under complex working conditions (such as high temperature and high humidity). In addition, existing sampling probe designs often lack effective sealing measures, which leads to the intrusion of moisture and impurities, affecting the accuracy of measurement results and possibly damaging internal electronic components. At the same time, existing technologies often cannot provide convenient solutions for adaptive adjustments under different working conditions, such as changes in flue gas flow direction.

[0003] Deficiencies of existing technology:

[0004] 1. Corrosion problem: Conventional sampling probe materials are easily affected by corrosive environments, causing equipment damage and requiring frequent replacement, increasing maintenance costs.

[0005] 2. Insufficient sealing: Lack of effective waterproof and dustproof design, cable interfaces and component connections are easily interfered by external factors, affecting data accuracy and instrument life.

[0006] 3. Temperature control and heating efficiency: The heating component is simply designed and may not be able to accurately control the temperature, affecting the sampling effect in low temperature or high humidity environments.

[0007] 4. Structural complexity and difficulty of adjustment: The components are complex to assemble and not easy to adjust quickly on site to adapt to different flue gas flow directions or sampling requirements.

[0008] 5. Material limitations: Most of the time, a single material is used, and the advantages of composite materials such as corrosion resistance and long-term use are not fully utilized.

[0009] 6. Installation flexibility: The connection method to the flue may not be flexible or universal, increasing the cost and difficulty of installation.

[0010] Therefore, the prior art has deficiencies and needs further improvement. Utility Model Content

[0011] In view of the problems existing in the prior art, the utility model provides a corrosion-resistant dust meter sampling probe.

[0012] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0013] The utility model provides a corrosion-resistant dust meter sampling probe, comprising:

[0014] Welding flange assembly, used to connect with the smoke tester host;

[0015] A probe heating assembly is arranged on the right side of the welding flange assembly;

[0016] The composite sampling probe rod assembly is arranged on the right side of the probe heating assembly;

[0017] The sampling probe assembly is arranged on the right side of the composite sampling probe rod assembly;

[0018] The welding flange assembly comprises:

[0019] A first flange, a first sleeve, and a second flange;

[0020] The first flange and the second flange are respectively installed on the left and right sides of the first sleeve;

[0021] The first flange is installed on the main unit of the smoke tester;

[0022] The second flange is connected to the probe heating assembly;

[0023] The sampling probe assembly extends into the interior of the flue;

[0024] The sampling probe assembly is made of non-metallic composite materials, including engineering plastics;

[0025] Composite materials are corrosion-resistant and have a long service life;

[0026] Engineering plastics have better heat resistance, chemical resistance or mechanical properties and are suitable for more stringent application environments, but are usually more expensive and have smaller outputs. The main varieties include polyimide (PI), polyphenylene sulfide (PPS), polysulfone (PSU), aromatic polyamide, polyarylate, polyaryletherketone, liquid crystal polymer (LCP) and fluororesin (such as polytetrafluoroethylene).

[0027] Furthermore, a waterproof connector is also provided on the side wall of the first sleeve, and the waterproof connector is used to lead out cables and full pressure and back pressure measuring tubes to connect with the smoke tester host.

[0028] Furthermore, the probe heating assembly includes: a heater, a heating and temperature control temperature sensor, and a third flange;

[0029] The heater and the heating and temperature control temperature sensor are arranged in parallel inside the first sleeve, and the heater and the heating and temperature control temperature sensor are used for heating and detecting temperature respectively;

[0030] The third flange is mounted on the second flange;

[0031] A sealing gasket is arranged between the second flange and the third flange.

[0032] Furthermore, the composite sampling probe assembly includes: a smoke sampling tube, a back-pressure pitot tube, a full-pressure pitot tube, and a smoke temperature detection tube;

[0033] The left and right sides of the flue gas sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube are respectively provided with a first fixing block and a second fixing block;

[0034] The left ends of the flue gas sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube pass through the first fixing block and the second flange in sequence and enter the first sleeve;

[0035] A first sealing ring is provided on the side where the smoke sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube contact the third flange;

[0036] Sealant is provided at the connection between the left side of the second fixing block and the smoke sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube;

[0037] Furthermore, the sampling probe assembly includes: a smoke sampling air nozzle, a back pressure air nozzle, and a full pressure air nozzle;

[0038] The smoke sampling nozzle, back pressure nozzle and total pressure nozzle are installed on the right side of the second fixing block and are connected to the smoke sampling tube, back pressure pitot tube and total pressure pitot tube respectively;

[0039] A second sealing ring is provided at the connection between the smoke sampling air nozzle, the back pressure air nozzle, the full pressure air nozzle and the second fixing block.

[0040] Furthermore, a temperature sampling port is provided on the side wall of the second fixing block, and the temperature sampling port is connected to the right end of the smoke temperature detection tube, and a smoke temperature measuring temperature sensor is also provided in the smoke temperature detection tube.

[0041] Furthermore, a set screw is provided on the side wall of the second fixing block for adjusting the direction of the smoke sampling nozzle according to the direction of the smoke.

[0042] Furthermore, the second flange is connected to a flue pre-buried flange provided on the flue.

[0043] The technical solution of the utility model has the following beneficial effects:

[0044] 1. Enhanced corrosion resistance: The use of non-metallic composite materials, especially corrosion-resistant materials such as engineering plastics, significantly improves the durability of the sampling probe under harsh working conditions, effectively extends its service life, and reduces maintenance and replacement costs caused by corrosion.

[0045] 2. Optimized sealing design: By setting waterproof joints, sealing gaskets, first sealing rings and second sealing rings, and using sealants at key connections, the sealing performance of the entire system is ensured, effectively preventing the entry of moisture, dust and other contaminants, and improving the accuracy of measurement data and the stability of the instrument.

[0046] 3. Accurate temperature control function: The integrated probe heating assembly includes a heater and a heating and temperature control temperature sensor, which can automatically adjust to the appropriate working temperature in various environments to ensure sampling efficiency and measurement accuracy, especially suitable for complex working conditions of low temperature or high humidity.

[0047] 4. Compact structure and flexibility: The modular design makes each component easy to assemble and maintain. The composite sampling probe assembly integrates multiple sampling functions in one, and the design of the set screw allows the direction of the sampling nozzle to be adjusted according to the actual flue gas flow direction, which enhances the flexibility and convenience of on-site use.

[0048] 5. Direct flue docking: Through the direct connection between the second flange and the embedded flue flange, the installation process is simplified, the reliability and versatility of the installation are improved, and the installation cost and time are reduced.

[0049] 6. Integrated temperature measurement: The built-in smoke temperature measurement temperature sensor is connected to the smoke temperature detection tube through the temperature sampling port to achieve real-time monitoring of the smoke temperature, further improving the comprehensiveness and accuracy of the sampling data. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a three-dimensional diagram of the utility model;

[0051] Figure 2 It is another stereogram of the utility model;

[0052] Figure 3 It is a cross-sectional view of the utility model;

[0053] Figure 4 It is another cross-sectional view of the utility model;

[0054] Figure 5 It is a side view of the utility model;

[0055] Figure 6 It is an installation schematic diagram of the utility model.

[0056] In the figure:

[0057] 1. Welding flange assembly;

[0058] 101, first flange; 102, first sleeve; 103, second flange;

[0059] 104. Waterproof connector;

[0060] 2. Probe heating assembly;

[0061] 201, heater; 202, heating temperature control temperature sensor; 203, third flange;

[0062] 204, Sealing gasket;

[0063] 3. Composite sampling probe assembly;

[0064] 301, smoke sampling tube; 302, back pressure pitot tube; 303, full pressure pitot tube; 304, smoke temperature detection tube;

[0065] 305, first fixing block; 306, second fixing block;

[0066] 307, first sealing ring; 308, sealing glue;

[0067] 4. Sampling probe assembly;

[0068] 401, smoke sampling nozzle; 402, back pressure nozzle; 403, full pressure nozzle;

[0069] 404, second sealing ring;

[0070] 405, temperature sampling port;

[0071] 406. Smoke temperature measurement temperature sensor;

[0072] 407, set screw;

[0073] 5. Main unit of smoke tester;

[0074] 501. Pre-buried flange of flue; 502. Flue. DETAILED DESCRIPTION

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] Combination Figure 1-Figure 6 As shown, the utility model provides a corrosion-resistant dust meter sampling probe, including: a welding flange assembly 1, used to connect to a smoke tester host 5; a probe heating assembly 2, arranged on the right side of the welding flange assembly 1; a composite sampling probe rod assembly 3, arranged on the right side of the probe heating assembly 2; and a sampling probe assembly 4, arranged on the right side of the composite sampling probe rod assembly 3.

[0080] The welding flange assembly 1 includes: a first flange 101, a first sleeve 102, and a second flange 103; the first flange 101 and the second flange 103 are respectively installed on the left and right sides of the first sleeve 102; the first flange 101 is installed on the smoke tester host 5; the second flange 103 is connected to the probe heating assembly 2. A waterproof joint 104 is also provided on the side wall of the first sleeve 102, and the waterproof joint 104 is used to lead out the cable and the pitot tube full pressure 303, the back pressure tube 302 and connect with the smoke tester host 5.

[0081] The sampling probe assembly 4 extends into the interior of the flue 502; the sampling probe assembly 4 is made of non-metallic composite materials, including engineering plastics; composite materials are corrosion-resistant and have a long service life. Engineering plastics have better heat resistance, chemical resistance or mechanical properties, and are suitable for more stringent application environments, but are usually more expensive and have smaller outputs; the main varieties include polyimide (PI), polyphenylene sulfide (PPS), polysulfone (PSU), aromatic polyamide, polyarylate, polyaryletherketone, liquid crystal polymer (LCP) and fluororesin (such as polytetrafluoroethylene). The second flange 103 is connected to the embedded flange 501 set on the flue 502.

[0082] The probe heating assembly 2 includes: a heater 201, a heating and temperature control temperature sensor 202, and a third flange 203; the heater 201 and the heating and temperature control temperature sensor 202 are arranged in parallel inside the first sleeve 102, and the heater 201 and the heating and temperature control temperature sensor 202 are used for heating and detecting temperature respectively; the third flange 203 is installed on the second flange 103; a sealing gasket 204 is arranged between the second flange 103 and the third flange 203.

[0083] The composite sampling probe assembly 3 includes: a smoke sampling tube 301, a back pressure pitot tube 302, a full pressure pitot tube 303, and a smoke temperature detection tube 304; the left and right sides of the smoke sampling tube 301, the back pressure pitot tube 302, the full pressure pitot tube 303, and the smoke temperature detection tube 304 are respectively provided with a first fixing block 305 and a second fixing block 306; the left ends of the smoke sampling tube 301, the back pressure pitot tube 302, the full pressure pitot tube 303, and the smoke temperature detection tube 304 are respectively provided with a first fixing block 305 and a second fixing block 306; Pass through the first fixed block 305 and the second flange 103 to enter the first sleeve 102; a first sealing ring 307 is provided on the side where the flue gas sampling tube 301, the back pressure pitot tube 302, the full pressure pitot tube 303, and the smoke temperature detection tube 304 contact the third flange 203; sealant 308 is provided at the connection between the left side of the second fixed block 306 and the flue gas sampling tube 301, the back pressure pitot tube 302, the full pressure pitot tube 303, and the smoke temperature detection tube 304.

[0084] The sampling probe assembly 4 includes: a smoke sampling nozzle 401, a back pressure nozzle 402, and a full pressure nozzle 403; the smoke sampling nozzle 401, the back pressure nozzle 402, and the full pressure nozzle 403 are installed on the right side of the second fixed block 306 and are respectively connected to the smoke sampling tube 301, the back pressure pitot tube 302, and the full pressure pitot tube 303; the connection between the smoke sampling nozzle 401, the back pressure nozzle 402, and the full pressure nozzle 403 and the second fixed block 306 is provided with a second sealing ring 404. A temperature sampling port 405 is provided on the side wall of the second fixed block 306, and the temperature sampling port 405 is connected to the right end of the smoke temperature detection tube 304. A smoke temperature measurement temperature sensor 406 is also provided in the smoke temperature detection tube 304. A set screw 407 is provided on the side wall of the second fixed block 306, which is used to adjust the direction of the smoke sampling nozzle 401 according to the direction of the smoke.

[0085] The principle of this utility model is as follows:

[0086] Connection and installation: First, the sampling probe is connected to the smoke tester host 5 by welding the flange assembly 1. Specifically, the first flange 101 is installed on the host, and the second flange 103 is connected to it through the first sleeve 102, and the second flange 103 is also connected to the probe heating assembly 2. The second flange 103 can be directly connected to the embedded flange on the flue 502, ensuring the smooth sampling.

[0087] Temperature control and heating: The probe heating assembly 2 has a built-in heater 201 and a heating and temperature control temperature sensor 202, which are arranged in parallel inside the first sleeve 102. The heater 201 is started as needed, and the temperature is monitored and adjusted by the temperature sensor to ensure that the probe works at a specific temperature, avoids the formation of condensed water, or maintains suitable test conditions, especially in low temperature or high humidity environments.

[0088] Sampling and sealing: The composite sampling probe assembly 3 contains a smoke sampling tube 301, a back pressure pitot tube 302, a full pressure pitot tube 303, a smoke temperature detection tube 304, etc. These components pass through the first fixed block 305 and the second flange 103, enter the first sleeve 102, and are provided with a first sealing ring 307 at the contact point with the third flange 203 to ensure sealing. The second fixed block 306 and each sampling tube are also sealed with a sealant 308 to prevent air leakage. In addition, the sampling gas nozzles (smoke sampling gas nozzle 401, back pressure gas nozzle 402, full pressure gas nozzle 403) provided on the second fixed block 306 are connected to the corresponding sampling tubes and are kept sealed by the second sealing ring 404.

[0089] Temperature measurement and direction adjustment: The smoke temperature detection tube 304 has a built-in smoke temperature measurement temperature sensor 406, which communicates with the host through the temperature sampling port 405 of the second fixed block 306 to monitor the smoke temperature in real time. The set screw 407 on the second fixed block 306 allows the user to manually adjust the direction of the smoke sampling nozzle 401 according to the smoke flow direction, sample at the best angle, and improve sampling efficiency and accuracy.

[0090] Materials and durability: The sampling probe assembly 4 is made of corrosion-resistant non-metallic composite materials, such as engineering plastics, which can not only effectively resist corrosive gases and particulate matter in the flue 502, but also extend the service life of the probe and reduce maintenance costs.

[0091] In summary, the corrosion-resistant dust meter sampling probe ensures stable and accurate sampling and analysis of smoke and flue gas parameters under harsh working conditions through sophisticated structural design, efficient heating and temperature control system, reliable sealing technology, flexible sampling adjustment mechanism and durable material application.

[0092] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the protection scope of the utility model.

Claims

1. A corrosion-resistant dust meter sampling probe, characterized in that: include: Welding flange assembly, used to connect with the smoke tester host; A probe heating assembly is arranged on the right side of the welding flange assembly; The composite sampling probe rod assembly is arranged on the right side of the probe heating assembly; The sampling probe assembly is arranged on the right side of the composite sampling probe rod assembly; The welding flange assembly comprises: A first flange, a first sleeve, and a second flange; The first flange and the second flange are respectively installed on the left and right sides of the first sleeve; The first flange is installed on the main unit of the smoke tester; The second flange is connected to the probe heating assembly; The sampling probe assembly extends into the interior of the flue; The sampling probe assembly is made of a non-metallic composite material, and the non-metallic composite material includes engineering plastics.

2. The corrosion-resistant dust monitor sampling probe according to claim 1 is characterized in that: A waterproof connector is also provided on the side wall of the first sleeve, and the waterproof connector is used to lead out cables and full pressure and back pressure measuring tubes to connect with the smoke tester host.

3. The corrosion-resistant dust monitor sampling probe according to claim 2 is characterized in that: The probe heating assembly includes: a heater, a heating and temperature control temperature sensor, and a third flange; The heater and the heating and temperature control temperature sensor are arranged in parallel inside the first sleeve, and the heater and the heating and temperature control temperature sensor are used for heating and detecting temperature respectively; The third flange is mounted on the second flange; A sealing gasket is arranged between the second flange and the third flange.

4. The corrosion-resistant dust monitor sampling probe according to claim 3 is characterized in that: The composite sampling probe assembly includes: a smoke sampling tube, a back pressure pitot tube, a full pressure pitot tube, and a smoke temperature detection tube; The left and right sides of the flue gas sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube are respectively provided with a first fixing block and a second fixing block; The left ends of the flue gas sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube pass through the first fixing block and the second flange in sequence and enter the first sleeve; A first sealing ring is provided on the side where the smoke sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube contact the third flange; Sealant is provided at the connection between the left side of the second fixing block and the smoke sampling tube, the back pressure pitot tube, the full pressure pitot tube, and the smoke temperature detection tube.

5. The corrosion-resistant dust monitor sampling probe according to claim 4 is characterized in that: The sampling probe assembly includes: a smoke sampling air nozzle, a back pressure air nozzle, and a full pressure air nozzle; The smoke sampling nozzle, back pressure nozzle and total pressure nozzle are installed on the right side of the second fixing block and are connected to the smoke sampling tube, back pressure pitot tube and total pressure pitot tube respectively; A second sealing ring is provided at the connection between the smoke sampling air nozzle, the back pressure air nozzle, the full pressure air nozzle and the second fixing block.

6. The corrosion-resistant dust monitor sampling probe according to claim 5 is characterized in that: A temperature sampling port is arranged on the side wall of the second fixing block, and the temperature sampling port is connected to the right end of the smoke temperature detection tube, and a smoke temperature measuring temperature sensor is also arranged in the smoke temperature detection tube.

7. The corrosion-resistant dust monitor sampling probe according to claim 6 is characterized in that: A set screw is provided on the side wall of the second fixing block for adjusting the direction of the smoke sampling nozzle according to the direction of the smoke.

8. The corrosion-resistant dust monitor sampling probe according to claim 1, characterized in that: The second flange is connected to a flue pre-buried flange arranged on the flue.

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