Sampling nozzle and sampling probe for ship flue

Abstract

The utility model provides a sampling nozzle and a sampling probe for a ship flue. The sampling nozzle comprises a temperature measuring component and a sampling probe, wherein the temperature measuring component comprises a temperature sensor fixing joint and a temperature sensor; the sampling component comprises a sampling port and a sampling pipeline; the flue flow velocity measuring component comprises an S-shaped pitot tube, a flue flow velocity measuring tube and a flue flow velocity tube fixing joint; the temperature measuring part, the sampling part and the flue flow velocity measuring part are arranged in parallel, the flue flow velocity measuring pipe fixing joint is fixedly arranged on the side wall of the sampling pipeline, and the temperature sensor fixing joint is arranged on the side, away from the sampling pipeline, of the side wall of the flue flow velocity measuring pipe; an S-shaped pitot tube, a sampling port and a temperature sensor are sequentially arranged in the direction from the far end to the near end of the sampling nozzle for the ship flue, and the sampling port and the temperature sensor are arranged at the positions with the same distance from the near end of the sampling nozzle for the ship flue. The flue gas sampling device can ensure that the measured flue gas temperature and flow velocity are consistent with the flue gas sampled by the sampling port, and the sampling nozzle can adapt to a complex environment in a ship flue and is convenient to install.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a sampling nozzle and a sampling probe for a ship flue. Background Art

[0002] The fuel of large cargo ships is mainly heavy oil. The residues produced by the combustion of heavy oil mainly include unburned flocculent coke shell smoke and ash. These smoke dusts are mainly composed of carbon, sulfur dioxide, iron oxide, silicon dioxide and aluminum oxide, and are usually white. However, when the smoke dust of ships appears black, it not only increases the fuel consumption of the ship's engine, reduces power, and increases wear, but also causes the engine to overheat, which in turn causes a large amount of carbon deposits to form on the piston, piston ring, valve and combustion chamber, thereby reducing the service life of the ship's engine. Ship exhaust is also a carcinogen recognized by the World Health Organization, which can cause asthma, heart disease, stroke, premature death and other diseases that seriously endanger human health. Therefore, the emission detection of ship exhaust is urgent. At present, some existing ship emission monitoring equipment mainly monitors pollutant concentrations, and greenhouse gas monitoring is less. In addition, all monitoring is not total amount monitoring, and there is a lack of effective total emission monitoring equipment. Utility Model Content

[0003] In the prior art, the existing ship emission monitoring equipment is equipped with independent sampling devices and flue flow velocity measuring devices, which results in the actual flue gas flow velocity and temperature at the sampling port not matching the flue gas flow velocity and flue gas temperature collected by the flue flow velocity measuring device. In addition, the flue gas flow velocity measuring device is arranged in a fixed direction, which does not match the actual flue gas flow direction in the ship flue, increasing the difficulty of construction and installation. In order to solve the above problems, this application provides the following solutions:

[0004] A sampling nozzle for a ship flue, comprising:

[0005] A temperature measuring component, the temperature measuring component comprising a temperature sensor fixing joint and a temperature sensor, the temperature sensor extending into the ship flue to detect the temperature of the ship flue;

[0006] A sampling component, the sampling component comprising a sampling port and a sampling pipeline, the sampling port collects the smoke from the ship's flue and transmits it through the sampling pipeline;

[0007] A flue flow velocity measuring component, the flue flow velocity measuring component comprising an S-type pitot tube, a flue flow velocity measuring tube, and a flue flow velocity tube fixing joint, the S pitot tube extending into the ship flue to collect the airflow pressure of the ship flue gas;

[0008] The temperature measuring component, the sampling component, and the flue flow rate measuring component are arranged in parallel, the flue flow rate measuring tube fixed joint is fixedly arranged on the side wall of the sampling pipeline, and the temperature sensor fixed joint is arranged on the side of the flue flow rate measuring tube side wall away from the sampling pipeline;

[0009] An S-shaped Pitot tube, a sampling port and a temperature sensor are sequentially arranged along the direction from the distal end to the proximal end of the sampling nozzle for the ship's flue, and the sampling port and the temperature sensor are arranged at the same distance from the proximal end of the sampling nozzle for the ship's flue.

[0010] In a specific embodiment, a flue flow velocity fixed joint, a flue flow velocity measuring tube and an S-type Pitot tube are sequentially arranged in the direction from the proximal end to the distal end of the flue flow velocity measuring component.

[0011] In a specific embodiment, the proximal end of the flue flow velocity measuring tube is also connected to a flow velocity transmission tube, and the flow velocity transmission tube further transmits the collected airflow pressure of the flue gas of the ship.

[0012] A sampling probe for a ship's flue comprises the above-mentioned sampling nozzle for a ship's flue.

[0013] In a specific embodiment, the ship flue sampling probe further includes:

[0014] An extension component, the distal end of which is connected to the proximal end of the ship sampling nozzle and transmits the ship flue gas collected by the ship sampling nozzle and the pressure of the ship flue gas;

[0015] A transfer component, comprising a flange and a transfer pipe, the transfer component is used to further transfer the flue gas transmitted by the extension component and to fix the ship sampling probe to the ship flue;

[0016] A humidity detection component, comprising a humidity sensor and a filter element, wherein the humidity detection component detects the humidity of the flue gas of the ship collected by the sampling nozzle of the ship;

[0017] The sampling nozzle for the ship's smoke duct, an extension component, a transfer component and a humidity detection component are arranged in sequence along the direction from the proximal end to the distal end of the sampling probe for the ship's smoke duct.

[0018] In a specific embodiment, the sampling nozzle and the extension component are rotatably connected, and the connection between the sampling nozzle and the extension component is used as an axis to rotate 0 to 360 degrees.

[0019] In a specific embodiment, the inner surface of the proximal end of the flange is tightly connected to the humidity detection component.

[0020] In a specific embodiment, a heating component is provided in the transfer pipe, and the heating component heats the flue gas further transmitted in the transfer pipe.

[0021] In a specific embodiment, the humidity detection component further includes an air-controlled valve;

[0022] A filter element, an air control valve and a humidity sensor are arranged in sequence along the direction from the distal end to the proximal end of the humidity detection component.

[0023] In a specific embodiment, the flue is provided with a sampling nozzle for a ship flue as described in the present application or a sampling probe for a ship flue as described in the present application.

[0024] The present application discloses a sampling nozzle and a sampling probe for a ship flue, which integrate a temperature measuring component, a sampling component, and a flue flow rate measuring component, thereby ensuring that the measured ship flue temperature and flue gas flow rate can represent the sample gas collected at the sampling port. At the same time, the present application discloses a sampling probe for a ship flue, which can measure the humidity of the flue gas in the ship flue while measuring the flue gas temperature and flow rate of the ship flue. The sampling nozzle for a ship flue can also be rotated to match the complex flue environment of the ship flue. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a sampling nozzle for a ship flue according to the present application.

[0026] Figure 2 This is a schematic diagram of the flue flow velocity measurement component of the present application.

[0027] Figure 3 This is a schematic diagram of a sampling probe for a ship flue according to the present application.

[0028] Figure 4 This is a schematic diagram of a humidity detection component in a sampling probe for a ship flue according to the present application.

[0029] Figure 5 This is a line graph of the test results of the ship smoke duct test for 75 days according to the embodiment of the present application.

[0030] In the figure, 1. sampling component; 2. flue flow velocity measuring component; 3. temperature detection component; 4. slipknot outer wire; 5. sampling nozzle for ship flue; 6. extension component; 7. transfer component; 8. humidity detection component; 11. sampling pipeline; 12. sampling port; 21. S-type pitot tube; 22. flue flow velocity measuring tube; 23. flue flow velocity fixing joint; 31. temperature sensor fixing joint; 32. temperature sensor; 71. first flange; 72. transfer pipeline; 73. second flange; 81. humidity sensor; 82. filter element; 83. gas control valve. DETAILED DESCRIPTION

[0031] The present application is described in detail below. Although specific embodiments of the present application are shown, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0032] It should be noted that certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that technicians may use different nouns to refer to the same component. This specification and claims do not use the difference in nouns as a way to distinguish components, but use the functional differences of components as the criterion for distinction. As mentioned throughout the specification and claims, "including" or "comprising" are open-ended terms and should be interpreted as "including but not limited to". The subsequent description of the specification is a preferred embodiment of the present application, but the description is based on the general principles of the specification and is not intended to limit the scope of the present application. The scope of protection of the present application shall be determined by the attached claims.

[0033] refer to Figure 1 , the present application provides a sampling nozzle for a ship flue, which comprises a temperature measuring component 3, a sampling component 1 and a flue flow velocity component 2;

[0034] The temperature measuring component 3 comprises a temperature sensor fixing joint 31 and a temperature sensor 32, and the temperature sensor 32 extends into the ship's smoke duct to detect the temperature of the ship's smoke duct;

[0035] The sampling component 1 includes a sampling port 12 and a sampling pipe 11. The sampling port 12 collects smoke from the ship's flue and transmits it through the sampling pipe;

[0036] The flue flow velocity measuring component 2 comprises an S-type pitot tube 21, a flue flow velocity measuring tube 22, and a flue flow velocity tube fixing joint 23. The S-type pitot tube 21 extends into the ship flue to collect the airflow pressure of the ship flue gas;

[0037] The temperature measuring component 3, the sampling component 1, and the flue flow velocity measuring component 2 are arranged in parallel, the flue flow velocity tube fixed joint 23 is fixedly arranged on the side wall of the sampling pipeline 11, and the high temperature sensor fixed joint 31 is arranged on the side of the flue flow velocity measuring tube side wall away from the sampling pipeline 11;

[0038] In the direction from the far end to the near end of the sampling nozzle for the ship flue, an S-shaped pitot tube 21, a sampling port 12 and a temperature sensor 32 are sequentially arranged, and the sampling port 12 and the temperature sensor 32 are arranged at the same distance from the near end of the sampling nozzle for the ship flue. The temperature measuring component 3, the sampling component 1 and the flue flow velocity measuring component 2 are fixed as a whole to ensure that there is no difference in the spatial position of the flue gas temperature sampling point, the flue gas flow velocity sampling point and the flue gas sampling point, so as to avoid the problem that the actual flue gas flow velocity and flue gas temperature of the sampling port do not match the collected flue gas flow velocity and flue gas temperature.

[0039] In a specific embodiment, the temperature sensor fixing joint is 31 made of high temperature resistant and corrosion resistant materials such as nickel-based alloys, stainless steel, etc., to ensure that the temperature measuring component 3 will not move due to deformation or corrosion of the temperature sensor fixing joint 31 under the harsh environmental conditions of the ship's flue.

[0040] In a specific embodiment, the sampling port 12 and the sampling pipe 11 are integrally formed, and their material can be corrosion-resistant and high-temperature resistant materials such as stainless steel and nickel-based alloys. This can not only ensure the stability of the sampling port 12 and the sampling pipe 11 in the high-temperature environment of the cabin flue, but also prevent the influence of corrosion on the sampling effect. It can ensure that it can maintain stable performance under different environmental conditions, thereby improving its scope of application and service life.

[0041] The present application does not limit the length and diameter of the S-shaped Pitot tube 21 , and the length and diameter of the S-shaped Pitot tube 21 can be customized according to actual needs.

[0042] The end closer to the operator is defined as the "proximal end", and the end farther from the operator is defined as the "distal end"; for long objects, the direction parallel to the length extension direction is defined as the "axial direction"; for objects with a circular cross-section, the direction surrounding the axial direction is defined as the "circumferential direction".

[0043] Specifically, the S-type pitot tube 21 is a tubular device for measuring the total pressure and static pressure of the airflow to determine the airflow velocity. The S-type pitot tube 21 is two measuring tubes of the same diameter, and the distal ends of the measuring tubes are bent into an S shape, wherein the measuring tube facing the direction of the ship's flue flue gas flow is used to measure the dynamic pressure of the ship's flue flue gas, and the measuring tube facing away from the direction of the ship's flue flue gas flow is used to measure the static pressure of the ship's flue flue gas. The dynamic pressure and static pressure of the ship's flue flue gas measured by the S-type pitot tube 21 are used to calculate the flow velocity of the ship's flue flue gas, and the calculation includes:

[0044] The calculation formula for the point velocity or line velocity of the smoke in the ship's smoke duct is:

[0045] vp=ks×vo×sqrt((t1+273) / 273×101325 / (p1+p3)) / sqrt(0.6464)

[0046] Where:

[0047] vp-point velocity or line velocity of smoke in the ship's flue;

[0048] Pitot tube coefficient of ks-S type Pitot tube;

[0049] p1-static pressure of ship flue gas;

[0050] p2-dynamic pressure of flue gas in the ship's flue;

[0051] p3-the local atmospheric pressure of the ship;

[0052] t1-the temperature of the ship's flue gas.

[0053] The square root formula of the dynamic pressure of the S-type Pitot tube is:

[0054] vo=sqrt(p2)

[0055] Where:

[0056] The square root of the dynamic pressure of the vo-S type pitot tube.

[0057] The calculation formula for the cross-sectional average flow velocity of ship flue gas is:

[0058] vs=kv×vp

[0059] Where:

[0060] vs-average flow velocity of the flue gas in the ship's flue;

[0061] vp-The point velocity or line velocity of the smoke in the ship's flue.

[0062] The S-type pitot tube 21 is a device for measuring gas flow rate. When the fluid passes through the pipeline, the fluid will generate static pressure and dynamic pressure. The S-type pitot tube 21 determines the flow rate by measuring the difference between the two. Due to its S-shaped design, the S-type pitot tube 21 is more stable when the fluid passes through, which can reduce the error caused by unstable flow, and can reduce the pressure loss when the fluid passes through, improve the measurement accuracy, and at the same time, the S-shaped design also helps to reduce the vibration and noise when the fluid passes through, and improve the accuracy of the measurement.

[0063] In a specific embodiment, the S-type Pitot tube 21 is made of high temperature and corrosion resistant materials such as stainless steel and nickel-based alloys to prevent the high temperature and complex flue gas in the ship's flue from causing the S-type Pitot tube 21 to deform, thereby further causing errors in the flow rate detection of the flue gas in the ship's flue.

[0064] The present application does not limit the length and diameter of the S-shaped Pitot tube 21 , and the length and diameter of the S-shaped Pitot tube 21 can be customized according to actual needs.

[0065] In a specific embodiment, an S-type pitot tube 21, a sampling port 12 and a temperature sensor 32 are sequentially arranged along the direction from the far end to the near end of the sampling nozzle for the ship's flue, and the sampling port 12 and the temperature sensor 32 are arranged at the same distance from the near end of the sampling nozzle for the ship's flue to ensure that the temperature of the flue gas of the ship's flue measured by the temperature sensor 32 is the same as the flue gas of the ship's flue collected by the sampling port 12. By arranging the sampling port 12 and the temperature sensor 32 at the same distance position, it is ensured that the source of the flue gas temperature of the ship's flue measured by the temperature sensor 32 is the same as the source of the flue gas collected by the sampling port 12. This helps to maintain the consistency and accuracy of the data and avoid errors caused by position deviation. The sampling port 12 is used to collect actual flue gas samples, while the temperature sensor 32 is used to measure the temperature of the flue gas. By ensuring that the relative positions of the two are the same, the measurement error caused by the temperature gradient or uneven flue gas flow can be reduced, which helps to improve the accuracy of temperature measurement. Due to the consistency of the relative positions of the sampling port 12 and the temperature sensor 32, the correction and modification of the data becomes simpler. No complex correction algorithm or compensation measures are required, which reduces the complexity of data processing.

[0066] Specifically, the flue flow rate fixing joint 23 is made of high temperature resistant and corrosion resistant materials such as nickel-based alloy, stainless steel, etc., to ensure that the flue flow rate measuring component will not move due to deformation or corrosion of the flue flow rate fixing joint under the harsh environmental conditions of the ship flue.

[0067] In a specific embodiment, the temperature sensor 32 can be a thermocouple temperature sensor, a thermal resistor temperature sensor, a PT1000 temperature sensor, etc. Due to the high temperature environment in the ship's smoke duct, it is necessary to select a temperature sensor that is resistant to high temperatures and has good stability. The temperature sensor 32 has good resistance to high temperature oxidation and thermal stability, and can maintain the accuracy and stability of the sensor at extreme temperatures.

[0068] In a specific embodiment, in order to protect the temperature sensor 32 from the harsh environment in the ship's flue, the temperature sensor 32 can be encapsulated in an inert gas or vacuum environment in a metal or ceramic shell. The gas in the ship's flue may contain various corrosive components, such as sulfides, nitrogen oxides, etc. These gases and particulate matter can damage the sensitive elements of the temperature sensor 32. Encapsulating the temperature sensor 32 in an inert gas or vacuum environment can isolate these harmful gases and particulate matter and protect the sensitive elements of the sensor. Moreover, encapsulating in an inert gas or vacuum environment can prevent the temperature sensor 32 from contacting with oxygen and prevent high-temperature oxidation, thereby maintaining the long-term stability of the temperature sensor 32.

[0069] refer to Figure 2As shown, in a specific embodiment, the proximal end of the flue flow velocity measuring tube 22 is also connected to a flow velocity transmission tube (not shown in the figure), and the flow velocity transmission tube further transmits the collected airflow pressure of the ship channel flue gas.

[0070] Specifically, the flue velocity tube measuring tube 22 and the velocity conducting tube can be made of high temperature resistant and corrosion resistant materials such as stainless steel and nickel-based alloy to ensure that the structural stability and measurement reliability can be maintained in the high temperature and corrosive environment of the ship flue. The specific length can be customized according to the characteristics and actual needs of the ship flue, which can better adapt to the sizes and characteristics of different ship flues, and improve the applicability and accuracy of flue velocity measurement.

[0071] refer to Figure 3 As shown, the present application also provides a sampling probe for a ship flue, including the above-mentioned sampling nozzle 5 for a ship flue.

[0072] In a specific embodiment, the sampling probe for a ship flue further comprises:

[0073] An extension component 6, the distal end of the extension component 6 is connected to the proximal end of the ship flue sampling nozzle 5 and transmits the ship flue smoke collected by the ship flue sampling nozzle 5 and the pressure of the ship flue smoke;

[0074] A transfer component 7, which includes a flange and a transfer pipe 72, and the transfer component 7 is used to further transfer the flue gas transmitted by the extension component 6, and to fix the ship sampling probe to the ship flue;

[0075] A humidity detection component 8, comprising a humidity sensor 81 and a filter element 83, the humidity detection component 8 detects the humidity of the ship flue gas collected by the ship's sampling nozzle;

[0076] Along the direction from the proximal end to the distal end of the sampling probe for the ship's flue, a sampling nozzle 5 for the ship's flue, an extension component 6, a transfer component 7 and a humidity detection component 8 are arranged in sequence.

[0077] The sampling probe for ship flue is made of high temperature resistant and corrosion resistant materials to adapt to the environment of high temperature and harmful gases. The above-mentioned sampling probe for ship flue can also detect the carbon emissions of the ship flue by using the humidity of the ship flue, and the calculation formula is:

[0078] G=(10000×x2×44 / 22.4)×v2×10-6

[0079] Where:

[0080] G-carbon emission rate;

[0081] X2-CO2 dry basis value;

[0082] v2-standard dry flue gas flow;

[0083] The calculation formula of standard dry flue gas v2 is:

[0084] v2=v1×273 / (t1+273)×(p1+p3) / 101325×(1-c1 / 100)

[0085] Where:

[0086] v2-standard dry flue gas flow rate;

[0087] v1-flow rate of wet flue gas;

[0088] p1-static pressure of ship flue gas;

[0089] p2-dynamic pressure of flue gas in the ship's flue;

[0090] c1-Humidity of ship flue gas;

[0091] The sampling probe for ship flue can monitor the greenhouse gas emissions of ship flue gas while detecting the temperature, pollutant concentration, flow rate and humidity of ship flue gas, so as to avoid the greenhouse gas emissions from polluting the environment. At the same time, by monitoring the greenhouse gas emissions of ship flue gas, the combustion efficiency and fuel consumption of ship engine can be understood, so as to optimize the operation management of the ship and improve the operation efficiency. In addition, equipment failure can be found in the greenhouse gas emissions to avoid affecting the operation of the ship.

[0092] In a specific embodiment, the extension part 6 is made of a high temperature resistant and corrosion resistant material such as titanium alloy, alloy steel, carbon steel, etc. Since the extension part 6 works in a high temperature environment, it is necessary to select a material with good high temperature stability; and the extension part 6 needs to have sufficient mechanical strength to ensure that it will not break or deform during use. At the same time, in practical applications, the requirement to reduce the overall weight may prompt the selection of lightweight alloys or titanium alloys.

[0093] In a specific embodiment, the sampling nozzle 5 for ship flue can be rotatably connected to the extension part 6, and the connection between the sampling nozzle 5 for ship flue and the extension part 6 is used as the axis, and the rotation angle is 0 to 360 degrees, for example, 0 degrees, 50 degrees, 100 degrees, 150 degrees, 200 degrees, 250 degrees, 300 degrees, 350 degrees, and 360 degrees. Ship flues are usually distributed at multiple levels of the hull, including cabins, decks, etc. At the same time, ship flues often encounter horizontal, longitudinal, oblique, variable diameter, etc. in their direction. Therefore, the sampling nozzle 5 for ship flues can be rotated and adjusted according to the direction of the ship flue, reducing the construction difficulty when installing the ship flue sampling probe.

[0094] In a specific embodiment, the sampling probe 5 for ship flue is fixed on the ship flue through a flange, and the flange is divided into a first flange 71 and a second flange 73. The first flange 71, the transfer pipe 72 and the second flange 73 are sequentially arranged along the direction from the distal end to the proximal end of the transfer component 7. The first flange 71 and the second flange 73 are concentric flanges, and the first flange 71 is connected to the extension component. A hole is opened on the wall of the ship flue at the collection point where the sample needs to be collected. The hole diameter is the same as that of the first flange 71. The first flange 71 is connected to the wall of the ship flue by screws to ensure that the ship flue gas at the collection point can be continuously collected during the movement of the ship, avoiding errors in the detection of ship flue gas due to the loose fixation of the sampling probe for the ship flue.

[0095] In a specific embodiment, the flange is a commercially available flange. The present application does not limit the diameter, thickness, etc. of the flange. The specific size of the flange can be customized according to the characteristics of the ship's flue and actual needs.

[0096] In a specific embodiment, the transfer pipe 72 can be made of alloy steel, nickel-based alloy, etc., to ensure that the transfer pipe 72 will not fail due to corrosion during long-term use, extend the life of the system, and have sufficient mechanical strength to withstand external forces such as vibration and impact that may occur in the ship's flue, ensure that the pipe will not deform or break, and have good thermal conductivity. This application does not limit the specific size of the transfer pipe 72, and the specific size of the flange can be customized according to the characteristics of the ship's flue and actual needs.

[0097] In a specific embodiment, the extension component 6 is connected to the first flange 71 in the form of a threaded connection, ensuring that the sealing and stability of the sampling probe for the ship's flue are not affected.

[0098] In a specific embodiment, the inner surface of the proximal end of the flange is tightly connected to the humidity detection component 8 to avoid leakage when measuring the humidity of the ship's flue gas or affecting the humidity detection of the ship's flue gas due to poor sealing.

[0099] In a specific embodiment, a heating component (not shown in the figure) is provided in the transfer pipe 72, and the heating component heats the flue gas further transmitted in the transfer pipe 72. By heating the flue gas further transmitted in the transfer pipe 72 by using the heating component, condensation caused by the temperature reduction of the flue gas further transmitted in the transfer pipe 72 is avoided, thereby affecting the accuracy of the humidity detection of the flue gas in the ship's flue.

[0100] refer to Figure 4As shown, in a specific embodiment, the humidity detection component 8 also includes an air control valve 83; along the direction from the distal end to the proximal end of the humidity detection component 8, a filter element 82, an air control valve 83 and a humidity sensor 81 are sequentially arranged. In the humidity detection component, the smoke of the ship's smoke duct will form an air path, and the smoke of the ship's smoke duct will filter the dust and dust in the smoke through the filter element; the air control valve is connected to the proximal end of the filter element to provide backwash pressure for the humidity detection component to reduce the pressure loss caused to the smoke during backwashing; the measuring part of the humidity sensor is located at the proximal end of the air control valve, which detects the humidity of the smoke while reducing the possibility of failure of the humidity sensor.

[0101] In one embodiment, the filter element 82 is a sintered filter element, which is a filter material made of multiple layers of metal sintered mesh, and is characterized by high strength and overall rigidity. This filter material is usually made of stainless steel mesh through special lamination pressing and vacuum sintering, so it has excellent filtering performance and high temperature resistance. Sintered filter elements are widely used in various industrial fields, such as automobile manufacturing, mechanical processing, petrochemicals, electricity, etc., as a filter and purification treatment for various fluid media, effectively protecting equipment from impurities and particulate matter.

[0102] In a specific embodiment, the air-controlled valve 83 is a pneumatic two-way stop valve. The air-controlled valve 83 has a valve flap in the shape of a plug of an opening and closing member, a sealing surface in the form of a plane or a cone, and a valve flap that moves linearly along the center line of the fluid. It uses an air source to control the opening and closing of the valve. When the air source enters from the lower cavity of the piston, the push rod moves upward. When the air intake position is in the back cavity of the push rod, the air intake makes the push rod move forward. On the contrary, when the air intake position is on the same side of the push rod, the air intake makes the push rod move backward.

[0103] In a specific embodiment, the humidity sensor 81 is a zirconium oxide sensor, which uses the strong adsorption of zirconium oxide on water molecules to measure the relative humidity of the environment by measuring the number of adsorbed water molecules. At the same time, zirconium oxide has good high temperature resistance and can adapt to the high temperature environment in the ship's smoke duct.

[0104] The present application also provides a ship flue, in which the above-mentioned sampling nozzle for the ship flue or the above-mentioned sampling probe for the ship flue is provided.

[0105] The above-mentioned ship flue sampling probe measures the temperature of the ship flue in real time through the temperature measuring component. The sampling probe collects flue gas samples in the ship flue through the sampling component and transmits the samples to the subsequent processing and analysis equipment. The sampling probe measures the flow rate of the gas in the ship flue through the flue flow rate measuring component. The temperature measuring component, sampling component and flue flow rate measuring component fixed as one can realize the simultaneous sampling of temperature and flow rate. The sampling pipeline of the sampling probe also transmits the collected flue gas samples to the extension component, and further transmits them to the transfer component, and heats them in the transfer pipeline of the transfer component to avoid errors in subsequent humidity detection caused by condensation. The heated flue gas samples further enter the humidity detection component, and the humidity detection component measures the humidity of the gas in the ship flue through the humidity sensor. At the same time, an air control valve is also provided in front of the humidity sensor. The air control valve controls the flow and pressure of the flue gas to ensure the accuracy and reliability of sampling and analysis.

[0106] The present application fixes the sampling component, the flue flow rate measuring component and the temperature measuring component into one, ensuring that the measured temperature and flow rate of the flue gas in the ship's flue are consistent with the flue gas collected by the sampling port. At the same time, the sampling nozzle for the ship's flue can be rotated 0 to 360 degrees to adapt to the complex environment in the ship's flue for easy installation.

[0107] Example

[0108] The sampling probe for a ship's smoke duct in this embodiment includes a sampling nozzle 5 for a ship's smoke duct, an extension component 6, a transfer component 7 and a humidity monitoring component 8.

[0109] The sampling nozzle for ship flue includes a sampling component 1, a flue flow velocity measuring component 2 and a temperature measuring component 3; the flue flow velocity measuring component 2 is connected to the sampling component 1 by welding; the temperature measuring component 3 is connected to the side wall of the flue flow velocity measuring component through a temperature sensor fixed joint 31 by welding. The sampling component 1 is composed of a sampling pipeline 11 and a sampling port 12, and the sampling port 12 and the sampling pipeline 11 are integrally formed and made of a titanium alloy tube; the temperature measuring component 3 is composed of a temperature sensor fixed joint 32 and a temperature sensor 31, and the temperature sensor fixed joint 31 is made of stainless steel, and the temperature sensor 31 is a thermocouple sensor; the flue flow velocity measuring component 2 is composed of an S-type pitot tube 21, a flue flow velocity measuring tube 22, a flue flow velocity fixed joint 23 and a flow velocity transmitting tube, which are composed of two stainless steel tubes of the same diameter, and the proximal end of the S-type pitot tube 21 is connected to the distal end of the flue flow velocity measuring tube 22 by welding, and the flue flow velocity fixed joint is fixed to the side wall of the sampling pipeline 11. In the direction from the proximal end to the distal end of the sampling nozzle for the ship's flue, the sampling port 12 is 30 mm away from the distal end of the S-type Pitot tube 21 and the distal end of the temperature sensor.

[0110] The extension part 6 is a hollow stainless steel tube, the distal end of the extension part 6 is an iron slipknot inner wire, and the proximal end of the sampling tube 11 has an iron slipknot outer wire 4 matched therewith; the sampling tube is connected to the extension part slipknot. The proximal end of the extension part 6 is connected to the distal end of the transfer part 7, and the connection method is threaded connection. The transfer part 7 is composed of a first flange 71, a transfer pipe 72 and a second flange 73, and the materials thereof are the same steel. The first flange 71 and the second flange 73 are concentric circles of the same diameter. The transfer pipe 72 has the same inner diameter as the first flange and the second flange. The distal end of the transfer pipe 72 is connected to the inner surface of the first flange 71, and the proximal end of the transfer pipe 72 is connected to the inner surface of the second flange 73, and the connection method is welding. A cylindrical protective layer 74 of polyethylene material is arranged outside the transfer pipe 72, and a heating pipe (not shown in the figure) is arranged between the protective layer and the transfer pipe. The second flange 73 is connected to the humidity detection component 8, and the connection method is threaded connection. The humidity detection component 8 consists of a humidity sensor 81, a filter element 82 and an air-controlled valve 83. Along the direction from the far end to the proximal end of the humidity detection component 8, the filter element 82, the air-controlled valve 83 and the humidity sensor 81 are arranged in sequence. The humidity sensor 81 is a zirconium oxide humidity sensor, the air-controlled valve 83 is an air-controlled two-way stop valve, and the filter element 82 is a sintered filter element.

[0111] The sampling probe for the ship flue is started, including activating the temperature sensor 31, the S-type pitot tube 21, the sampling port 12 and other components, to prepare for subsequent measurement and sampling. When measuring the temperature, the temperature sensor 31 starts to work. By measuring the temperature of the ship flue, the temperature sensor 31 converts the temperature data into an electrical signal, and transmits it to the control system in the ship through the temperature sensor fixed joint 32. The control system in the ship processes and analyzes the received temperature data to determine the current temperature state of the ship flue. While measuring the temperature, the sampling port 12 collects gas samples in the ship flue, and the sampling pipeline 11 transmits the collected gas samples to subsequent processing and analysis equipment. And the S-type pitot tube 21 works by measuring the flow rate of the gas in the ship flue. It measures the airflow pressure and calculates the flow rate using the relevant formula. The flue flow rate measuring tube 22 transmits the flow rate data to the control system in the ship. The control system in the ship processes and analyzes the flow rate data to determine the current flow rate state of the flue. The gas sample in the ship flue collected by the sampling port 12 is further transmitted through the extension component 6 and the transfer component 7, and enters the humidity detection component after being heated in the transfer pipe 72. An air control valve 83 is provided in the humidity detection component, which is used to control the flow and pressure of the gas to ensure the accuracy and reliability of sampling and analysis. It can adjust the flow and pressure of the gas as needed to meet different measurement and analysis requirements. The humidity sensor 81 in the humidity detection component converts the humidity data into an electrical signal and transmits it to the control system in the ship. The control system in the ship processes and analyzes the received humidity data to determine the current humidity state of the flue.

[0112] like Figure 5 As shown, this embodiment is set in the ship's smoke duct for 75 days, and the ship's carbon dioxide emissions are detected, and the measured results are recorded as a line graph. In addition to detecting the pollutant concentration and type of the ship's smoke, this embodiment can also accurately detect the carbon dioxide concentration of the ship's smoke duct under the complex environment of the ship's smoke duct, and the ship's smoke duct probe can still maintain excellent detection accuracy after being set in the ship's smoke duct for 75 days.

[0113] The above is only a preferred embodiment of the utility model. It should be pointed out that a person skilled in the art can make several similar modifications and improvements without departing from the innovative concept of the utility model, and these modifications and improvements are also considered to be within the protection of the utility model.

Claims

1. A sampling nozzle for a ship flue, wherein: include: A temperature measuring component, the temperature measuring component comprising a temperature sensor fixing joint and a temperature sensor, the temperature sensor extending into the ship flue to detect the temperature of the ship flue; A sampling component, the sampling component comprising a sampling port and a sampling pipeline, the sampling port collects the smoke from the ship's flue and transmits it through the sampling pipeline; A flue flow velocity measuring component, the flue flow velocity measuring component comprising an S-type pitot tube, a flue flow velocity measuring tube, and a flue flow velocity tube fixing joint, the S-type pitot tube extending into the ship flue to collect the airflow pressure of the ship flue gas; The temperature measuring component, the sampling component, and the flue flow rate measuring component are arranged in parallel, the flue flow rate measuring tube fixed joint is fixedly arranged on the side wall of the sampling pipeline, and the temperature sensor fixed joint is arranged on the side of the flue flow rate measuring tube side wall away from the sampling pipeline; An S-shaped Pitot tube, a sampling port and a temperature sensor are sequentially arranged along the direction from the distal end to the proximal end of the sampling nozzle for the ship's flue, and the sampling port and the temperature sensor are arranged at the same distance from the proximal end of the sampling nozzle for the ship's flue.

2. The sampling nozzle for ship flue according to claim 1, characterized in that: A flue flow velocity fixed joint, a flue flow velocity measuring tube and an S-type pitot tube are sequentially arranged in the direction from the proximal end to the distal end of the flue flow velocity measuring component.

3. The sampling nozzle for ship flue according to claim 2, characterized in that: The proximal end of the flue flow velocity measuring tube is also connected to a flow velocity transmission tube, and the flow velocity transmission tube further transmits the collected air flow pressure of the flue gas of the ship.

4. A sampling probe for a ship flue, characterized in that: The invention comprises the sampling nozzle for ship flue as described in any one of claims 1 to 3.

5. The sampling probe for ship flue according to claim 4, characterized in that: Also includes: An extension component, the distal end of which is connected to the proximal end of the ship flue sampling nozzle and transmits the ship flue smoke collected by the ship flue sampling nozzle and the pressure of the ship flue smoke; A transfer component, comprising a flange and a transfer pipe, the transfer component is used to further transfer the flue gas transmitted by the extension component and to fix the ship flue sampling probe to the ship flue; A humidity detection component, comprising a humidity sensor and a filter element, wherein the humidity detection component detects the humidity of the ship flue gas collected by the ship flue sampling nozzle; The sampling nozzle for the ship's smoke duct, an extension component, a transfer component and a humidity detection component are arranged in sequence along the direction from the proximal end to the distal end of the sampling probe for the ship's smoke duct.

6. The sampling probe for ship flue according to claim 5, characterized in that: The sampling nozzle and the extension component are rotatably connected, and can rotate 0 to 360 degrees with the connection between the sampling nozzle and the extension component as the axis.

7. The sampling probe for ship flue according to claim 5, characterized in that: The inner side surface of the proximal end of the flange is tightly connected to the humidity detection component.

8. The sampling probe for ship flue according to claim 5, characterized in that: A heating component is arranged in the transfer pipe, and the heating component heats the flue gas further transmitted in the transfer pipe.

9. The sampling probe for ship flue according to claim 5, characterized in that: The humidity detection component also includes an air control valve; A filter element, an air control valve and a humidity sensor are arranged in sequence along the direction from the distal end to the proximal end of the humidity detection component.

10. A ship smoke duct, characterized in that: The flue is provided with a sampling nozzle for a ship flue according to any one of claims 1 to 3 or a sampling probe for a ship flue according to any one of claims 4 to 9.

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