Gas flow particulate pollutant detector

Abstract

The utility model relates to a gas flow particulate pollutant detector. When the concentration of solid particulate matters in gas is measured in the prior art, as the particulate matters sink under the action of gravity, the measured numerical value of particulate pollutants has errors. A mixing pipe section (1) is located at the gas inlet end of the gas fluid particle pollutant detector, the mixing pipe section (1), a detection pipe section (3) and a pressure reduction pipe section (4) are sequentially connected, and a detection probe (2) is inserted into the detection pipe section (3) through a detection element (2A); a group of turbulent flow blades (1B) of the mixing pipe section (1) are uniformly distributed in the circumferential direction of the cylinder wall of the mixing pipe cylinder (1A), each turbulent flow blade (1B) is rotationally mounted on the inner wall of the mixing pipe cylinder (1A), and the angle of the plane where the blade surface of each turbulent flow blade (1B) is located is the same as the included angle between the plane where the cross section of the mixing pipe section (1) is located and is 20-70 degrees. According to the utility model, the detection precision is improved by uniformly stirring particles in the gas to be detected and the gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of gas flow state particle pollutant detector. BACKGROUND

[0002] In modern industry, especially manufacturing, nitrogen, oxygen, argon, hydrogen, helium, clean air and other mixed gases and special gases are widely and massively used, and are called "industrial blood" because their downstream application fields involve many basic industries of national economy, and play an important role in national economy. Industrial gas is widely used in steel, metallurgy, petroleum, coal chemical industry, electronic semiconductor, aerospace, equipment manufacturing, food and many other fields, and plays an important role in national defense construction and medical and health fields. China's industrial gas industry started late, but developed rapidly. Especially since 2000, with the rapid development of China's economy, China's industrial gas industry has entered a rapid development stage and has become one of the most active gas markets in the world.

[0003] According to the different gas consumption and gas type requirements of end customers, industrial gas supply and use mainly through three ways: on-site pipeline gas supply, liquefied gas supply (tank truck delivery to the user, mainly liquid nitrogen, oxygen, argon, carbon dioxide, etc.) and bottled retail gas supply (gas cylinder container to provide corresponding gas products) and more working conditions, three supply modes coexist to meet the process production requirements of customers. At present, in the industrial gas supply and demand industry chain in China, the production, supply, use and dispatch are still mainly based on traditional manual chain mode, independent construction and management, various industrial heterogeneous network interconnection barriers exist, resulting in information barriers and island existence. Production and management information sharing, utilization degree is not enough, network collaborative manufacturing and intelligent manufacturing innovation is insufficient, core technology capability has not been formed, new ecological development is insufficient, core technology / software production support capability is weak, etc. For the above problems, based on the "Internet +" thinking of industrial internet architecture, to establish gas supply and demand relationship optimization model and algorithm, realize production management information sharing, optimize gas manufacturing and use of production strategy matching formulation, reduce energy consumption, etc.

[0004] Among them, for the gas sundries and pollutant detection means involved in each link, accurate detection and remote data transmission are necessary. At present, when determining the concentration of solid particles in gas, the particles sink under the action of gravity, cannot present a mixed and uniform state in the gas to be detected, and the true value of the particle pollutants in the gas cannot be measured. SUMMARY

[0005] The utility model discloses a gas flow state particle pollutant detector.

[0006] The above object is achieved by the following technical solutions.

[0007] A gas flow state particle pollutant detector, which comprises a mixing pipe section, a detection pipe section and a pressure reduction pipe section.

[0008] The mixing pipe section comprises a mixing pipe cylinder and a plurality of turbulence vanes, which are evenly distributed along the circumference of the cylinder wall of the mixing pipe cylinder, and each turbulence vane is rotatably mounted on the inner wall of the mixing pipe cylinder.

[0009] The detection probe comprises a detection element and a protective cover, and the protective cover is mounted on the air inlet end of the detection element.

[0010] The detection pipe section comprises a detection pipe cavity and a detection mounting seat, which is detachably arranged on the side wall of the detection pipe cavity.

[0011] The pressure reduction pipe section is a variable-diameter pipe with a hollow cylindrical structure, which comprises a pressure reduction front pipe section, a pressure reduction middle pipe section and a pressure reduction rear pipe section connected in sequence.

[0012] Further, the mixing pipe cylinder has a hollow cylindrical structure, and the inner wall of the mixing pipe cylinder is evenly provided with eight side wall holes along the circumference.

[0013] The turbulence vane is inserted and mounted in the side wall hole through the blade column, and the installation angle of the turbulence vane in the mixing pipe cylinder is adjusted by rotating the insertion angle of the blade column in the side wall hole.

[0014] The number of turbulence vanes is eight, and the number of side wall holes is eight.

[0015] Further, the detection element comprises a terminal, a nut structure, a threaded segment, a cover mounting end face and a detection device; the detection device is located at the gas inlet end of the detection element and is located in the detection tube segment 3 during use, and the detection device is connected with the threaded segment according to the gas flow direction, the threaded segment is connected with the nut structure, and the nut structure is connected with the terminal; the end face at the connection position of the threaded segment and the detection device is provided as the cover mounting end face; and the outer surface of the threaded segment is provided with an external thread.

[0016] Further, the protective cover is a hollow cylindrical structure with open ends, one end of the protective cover is further provided with a cover mounting hole, and a group of cover airflow holes are uniformly distributed on the side wall of the protective cover in a lattice form.

[0017] Further, the detection tube cavity is a hollow cylindrical structure, and the side wall of the detection tube cavity is provided with a detection mounting hole; the detection mounting seat is a block structure, the top of the detection mounting seat is a plane, and the bottom of the detection mounting seat is a circular arc shape matched with the detection tube cavity; and the central region of the detection mounting seat is further provided with a detection threaded hole, and the inner wall of the detection threaded hole is provided with an internal thread matched with the external thread of the outer surface of the threaded segment 2A3.

[0018] Further, the angle between the plane of the blade surface of each turbulence vane and the plane of the cross section of the mixing pipe segment is the same, and is 30°.

[0019] Further, the angle between the plane of the blade surface of each turbulence vane and the plane of the cross section of the mixing pipe segment is the same, and is 45°.

[0020] Further, the angle between the plane of the blade surface of each turbulence vane and the plane of the cross section of the mixing pipe segment is the same, and is 55°. Beneficial effects

[0021] The utility model provides a kind of device for detecting particulate pollutant in flowing gas, which is provided with turbulence vanes inside, before the gas flow passes through detection probe, the turbulence vane group is used to change the gas to be detected into turbulent flow rotating around the pipe axis, so that the particulate in the gas is mixed uniformly, and the accuracy of the value of solid particles in the gas to be detected measured at detection probe is maximized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the utility model;

[0023] Figure 2 It is the front end side view of the gas fluid particulate pollutant detector involved by the utility model;

[0024] Figure 3It is the explosion view of the gas fluid particle pollutant detector of the utility model;

[0025] Figure 4 It is the mixed pipe cylinder structure schematic view of the utility model;

[0026] Figure 5 It is the spoiler blade structure schematic view of the utility model;

[0027] Figure 6 It is the detection probe structure schematic view of the utility model;

[0028] Figure 7 It is the detection element structure schematic view of the utility model;

[0029] Figure 8 It is the protective cover structure schematic view of the utility model;

[0030] Figure 9 It is the detection pipe section explosion view of the utility model;

[0031] Figure 10 It is the detection pipe section and detection probe installation relation view of the utility model;

[0032] Figure 11 It is the pressure reduction pipe section structure schematic view of the utility model;

[0033] Figure 12 It is the gas fluid particle pollutant detector internal flow field view of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the utility model embodiment, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor are within the protection scope of the utility model. DETAILED DESCRIPTION

[0036] The gas flow state particle pollutant detector of the utility model embodiment, its composition includes mixed pipe section 1, detection pipe section 3 and pressure reduction pipe section 4, and the mixed pipe section 1 is located at the gas inlet end of the gas fluid particle pollutant detector, the gas outlet end of the mixed pipe section 1 is connected with the detection pipe section 3, and the gas outlet end of the detection pipe section 3 is connected with the pressure reduction pipe section 4; the measured gas flows into the mixed pipe section 1 and then flows out from the pressure reduction pipe section 4. Wherein,

[0037] As Figure 3As shown in the figure, the mixing pipe section 1 comprises a mixing pipe cylinder 1A and a set of turbulence vanes 1B, which are evenly distributed along the circumference of the cylinder wall of the mixing pipe cylinder 1A, and each turbulence vane 1B is rotatably installed on the inner wall of the mixing pipe cylinder 1A, and the angle between the plane of the blade surface of each turbulence vane 1B and the plane of the cross section of the mixing pipe section 1 is the same, which is 20-70°;

[0038] As shown in the figure, the detection probe 2 comprises a detection element 2A and a protective cover 2B, and the protective cover 2B is installed on the gas inlet end of the detection element 2A; the detection probe 2 is inserted and installed on the side wall of the detection pipe section 3 through the detection element 2A; Figure 6

[0039] As shown in the figure, the detection pipe section 3 comprises a detection pipe cavity 3A and a detection mounting seat 3B, which is detachably arranged on the side wall of the detection pipe cavity 3A; Figure 9

[0040] As shown in the figure, the pressure reducing pipe section 4 is a variable diameter pipe with a hollow cylindrical structure, comprising a pressure reducing front section pipe 4A, a pressure reducing middle section pipe 4B and a pressure reducing rear section pipe 4C connected in sequence; the pressure reducing pipe section 4 is connected with the detection pipe cavity 3A through the pressure reducing front section pipe 4A; the cross-sectional diameter of the pressure reducing front section pipe 4A is adapted to the cross-sectional diameter of the detection pipe cavity 3A, and the cross-sectional diameter of the pressure reducing rear section pipe 4C is larger than that of the pressure reducing front section pipe 4A; the pressure reducing middle section pipe 4B is a hollow conical cylinder structure. Figure 11 Specific implementation method two:

[0042] Different from the specific implementation method one, the gas flow state particle pollutant detector of the present implementation method, as shown in the figure, comprises a mixing pipe cylinder 1A and a set of turbulence vanes 1B, which are evenly distributed along the circumference of the cylinder wall of the mixing pipe cylinder 1A, and each turbulence vane 1B is rotatably installed on the inner wall of the mixing pipe cylinder 1A, and the angle between the plane of the blade surface of each turbulence vane 1B and the plane of the cross section of the mixing pipe section 1 is the same, which is 20-70°; Figure 4 As shown in the figure, the mixing pipe cylinder 1A is a hollow cylindrical structure, and the inner wall of the mixing pipe cylinder 1A is evenly distributed with 8 side wall holes 1A1 along the circumference; as shown in the figure, the turbulence vane 1B comprises a blade body 1B1 and a blade column 1B2, and the blade column 1B2 is arranged on the end face of the short side of the blade body 1B1, wherein the blade body 1B1 is a sheet structure; Figure 5 The turbulence vane 1B is inserted and installed in the side wall hole 1A1 through the blade column 1B2, and the installation angle of the turbulence vane 1B in the mixing pipe cylinder 1A is adjusted by rotating the insertion angle of the blade column 1B2 in the side wall hole 1A1, and when the turbulence vane 1B is adjusted to the appropriate angle, the relative position of the turbulence vane 1B and the mixing pipe cylinder 1A is fixed;

[0043] The number of the turbulence vanes 1B is 8, and the number of the side wall holes 1A1 is 8; the turbulence vanes 1B are correspondingly inserted and installed in the side wall holes 1A1.

[0044] Specific implementation method three: ​​​​

[0046] Different from the second embodiment, the gas flow state particulate pollutant detector of the present embodiment comprises a detection element 2A and a detection tube segment 3, as shown in the figure. Figure 7 As shown in the figure, the detection element 2A comprises a terminal 2A1, a nut structure 2A2, a threaded segment 2A3, a cover mounting end face 2A4 and a detection device 2A5; the detection device 2A5 is located at the gas inlet end of the detection element 2A and is located in the detection tube segment 3 during use; the detection device 2A5 is connected to the threaded segment 2A3, the threaded segment 2A3 is connected to the nut structure 2A2, and the nut structure 2A2 is connected to the terminal 2A1; the end face of the connection between the threaded segment 2A3 and the detection device 2A5 is provided as the cover mounting end face 2A4; the outer surface of the threaded segment 2A3 is provided with an external thread; the nut structure 2A2 provides an external hexagonal structure, which facilitates the installation of the detection element 2A with a wrench.

[0047] As shown in the figure, the protective cover 2B is a hollow cylindrical structure with open ends, and one end of the protective cover 2B is further provided with a cover mounting hole 2B1. The side wall of the protective cover 2B is uniformly distributed with a group of cover airflow holes 2B2 in a lattice form. Figure 8 The protective cover 2B is fitted at the cover mounting end face 2A4 of the detection element 2A through the cover mounting hole 2B1. Embodiment four:

[0049] Different from the third embodiment, the gas flow state particulate pollutant detector of the present embodiment comprises a detection element 2A and a detection tube segment 3, as shown in the figure. Figure 10 As shown in the figure, the detection tube cavity 3A is a hollow cylindrical structure, and the side wall of the detection tube cavity 3A is provided with a detection mounting hole 3A1.

[0050] The detection mounting seat 3B is a block structure, the top of the detection mounting seat 3B is a plane, and the bottom of the detection mounting seat 3B is a circular arc shape corresponding to the detection tube cavity 3A; the central region of the detection mounting seat 3B is further provided with a detection threaded hole 3B1, and the inner wall of the detection threaded hole 3B1 is provided with an internal thread matching the external thread of the outer surface of the threaded segment 2A3. Embodiment five:

[0052] Different from the fourth embodiment, the gas flow state particulate pollutant detector of the present embodiment, the angle between the plane of the blade face of each turbulence blade (1B) and the plane of the cross section of the mixing tube segment (1) is the same, which is 30°. Embodiment six:

[0054] Different from the fifth embodiment, the gas flow state particulate pollutant detector of the present embodiment, the angle between the plane of the blade face of each turbulence blade (1B) and the plane of the cross section of the mixing tube segment (1) is the same, which is 45°. Embodiment seven:

[0056] Different from the sixth embodiment, the gas flow state particle pollutant detector of the embodiment has the same angle between the plane of the blade face of each turbulence blade (1B) and the plane of the cross section of the mixing pipe section (1), which is 55°.

[0057] The installation method of the detection element 2A is as follows:

[0058] When the detection element 2A is installed in the detection pipe section 3, the detection mounting seat 3B is first removed from the detection pipe cavity 3A, the detection element 2A is screwed into the detection threaded hole 3B1 of the mounting seat 3B, the external thread of the threaded section 2A3 and the internal thread of the detection threaded hole 3B1 are threadedly connected, the protective cover 2B is installed below the detection element 2A, and then the detection mounting seat 3B with the detection probe 2 is installed back to the upper part of the detection pipe cavity 3A, at this time, the lower half of the detection probe 2 extends into the middle cavity of the detection pipe cavity 3A through the detection mounting hole 3A1.

[0059] Working principle:

[0060] In use, the gas mixed with small solid particles enters the mixing pipe section 1 through the inflow pipe 5, the diameter of the inflow pipe 5 is the same as that of the mixing pipe section 1, the gas flow encounters the turbulence blade 1B group, and a vortex around the axis of the mixing pipe section 1 is generated under the guidance of the turbulence blade 1B, and the solid small particles mixed in the gas flow are uniformly mixed by the disturbance of the gas vortex; then, the uniformly mixed particles flow to the detection pipe section 3, the diameter of the detection pipe section 3 is the same as that of the mixing pipe section 1, the detection device 2A5 of the detection probe 2 detects the concentration of the solid small particles in the gas flow, and outputs the detection signal to the signal acquisition device through the wiring end 2A1, so as to monitor the concentration of the particles in the gas flow; then the gas flow enters the outflow pipe 6 through the pressure reduction pipe section 4, the diameter of the outflow pipe is the same as that of the pressure reduction pipe section 4C, that is, the diameter of the outflow pipe 6 is larger than that of the inflow pipe 5, the mixing pipe section 1 and the detection pipe section 3, so that the pressure can be effectively reduced, and the outflow resistance of the gas flow is reduced.

[0061] The detection device 2A5 is a commercially available existing device, and the specific type and size need to be selected according to the actual size of the device, and the structure and function of the device are not improved, so it will not be described in detail.

[0062] The above is only a preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gaseous particulate pollutant detector, comprising a mixing section (1), a detection section (3), and a pressure-reducing section (4), characterized in that: The mixing section (1) is located at the inlet of the gaseous particulate pollutant detector, and the outlet of the mixing section (1) is connected to the detection section (3). The outlet of the detection section (3) is connected to the pressure-reducing section (4). The mixing pipe section (1) includes a mixing pipe cylinder (1A) and a set of baffles (1B). The set of baffles (1B) is evenly distributed around the circumference of the mixing pipe cylinder (1A), and each baffle (1B) is rotatably installed on the inner wall of the mixing pipe cylinder (1A). The angle between the plane on which the blade surface of each baffle (1B) is located and the plane on which the cross section of the mixing pipe section (1) is located is the same, which is 20~70°. The detection probe (2) includes a detection element (2A) and a protective cover (2B), the protective cover (2B) being installed at the air inlet end of the detection element (2A); the detection probe (2) is inserted into the side wall of the detection tube section (3) through the detection element (2A); The detection tube section (3) includes a detection cavity (3A) and a detection mounting base (3B), and the detection mounting base (3B) is detachably mounted on the side wall of the detection cavity (3A); The pressure-reducing pipe section (4) is a hollow cylindrical variable diameter pipe, including a pressure-reducing front section pipe (4A), a pressure-reducing middle section pipe (4B), and a pressure-reducing rear section pipe (4C) connected in sequence; the pressure-reducing pipe section (4) is connected to the detection cavity (3A) through the pressure-reducing front section pipe (4A); the cross-sectional diameter of the pressure-reducing front section pipe (4A) is adapted to the cross-sectional diameter of the detection cavity (3A), and the cross-sectional diameter of the pressure-reducing rear section pipe (4C) is larger than the cross-sectional diameter of the pressure-reducing front section pipe (4A); the pressure-reducing middle section pipe (4B) is a hollow conical cylindrical structure.

2. The gaseous particulate pollutant detector according to claim 1, characterized in that: The mixing tube (1A) is a hollow cylindrical structure, and the inner wall of the mixing tube (1A) has 8 side wall holes (1A1) evenly distributed along the circumference; the turbulence blade (1B) includes a blade body (1B1) and a blade column (1B2), and the blade column (1B2) is disposed on the end face of the short side of the blade body (1B1), wherein the blade body (1B1) is a plate-like structure; The aforementioned baffle blade (1B) is inserted into the side wall hole (1A1) by a blade column (1B2). The installation angle of the baffle blade (1B) in the mixing tube (1A) is adjusted by rotating the insertion angle of the blade column (1B2) in the side wall hole (1A1). The number of the aforementioned baffle blades (1B) is 8, and the number of the aforementioned sidewall holes (1A1) is 8; the baffle blades (1B) and the sidewall holes (1A1) are inserted accordingly.

3. The gaseous particulate pollutant detector according to claim 2, characterized in that: The detection element (2A) includes a terminal block (2A1), a nut structure (2A2), a threaded section (2A3), a cover mounting end face (2A4), and a detection device (2A5). The detection device (2A5) is located at the air inlet end of the detection element (2A) and is located inside the detection pipe section (3) during use. According to the airflow direction, the detection device (2A5) is connected to the threaded section (2A3), the threaded section (2A3) is connected to the nut structure (2A2), and the nut structure (2A2) is connected to the terminal block (2A1). The end face at the connection between the threaded section (2A3) and the detection device (2A5) is set as the cover mounting end face (2A4). The outer surface of the threaded section (2A3) is provided with an external thread. The protective cover (2B) is a hollow cylindrical structure with openings at both ends. One end of the protective cover (2B) is also provided with a cover mounting hole (2B1). A set of cover airflow holes (2B2) are evenly distributed on the side wall of the protective cover (2B) in a dot matrix pattern. The protective cover (2B) is fitted onto the cover mounting end face (2A4) of the detection element (2A) through the cover mounting hole (2B1).

4. The gaseous particulate pollutant detector according to claim 3, characterized in that: The detection cavity (3A) is a hollow cylindrical structure, and the side wall of the detection cavity (3A) is provided with a detection mounting hole (3A1); the detection mounting seat (3B) is a block structure, the top of the detection mounting seat (3B) is a plane, and the bottom of the detection mounting seat (3B) is an arc shape that conforms to the detection cavity (3A); the central area of ​​the detection mounting seat (3B) is also provided with a detection threaded hole (3B1), and the inner wall of the detection threaded hole (3B1) is provided with an internal thread that matches the external thread on the outer surface of the threaded section (2A3).

5. A gaseous particulate pollutant detector according to claim 4, characterized in that: The angle between the plane on which the blade surface of each turbulence blade (1B) is located and the plane on which the cross section of the mixing pipe section (1) is located is the same, which is 30°.

6. A gaseous particulate pollutant detector according to claim 5, characterized in that: The angle between the plane on which the blade surface of each turbulence blade (1B) is located and the plane on which the cross section of the mixing pipe section (1) is located is the same, which is 45°.

7. A gaseous particulate pollutant detector according to claim 6, characterized in that: The angle between the plane on which the blade surface of each turbulence blade (1B) is located and the plane on which the cross section of the mixing pipe section (1) is located is the same, which is 55°.

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