CN117664261A

CN117664261A - Elbow side-mounted gas flow meter

Info

Publication number: CN117664261A
Application number: CN202410137790.1A
Authority: CN
Inventors: 毛文章; 张俊; 梁福秋
Original assignee: Anhui Tiankang Group Co Ltd
Current assignee: Anhui Tiankang Group Co Ltd
Priority date: 2024-02-01
Filing date: 2024-02-01
Publication date: 2024-03-08
Anticipated expiration: 2044-02-01
Also published as: CN117664261B

Abstract

The invention provides a side-mounted gas flow meter for an elbow, which comprises an elbow body, wherein a directional arrow is integrally formed on the outer side wall of the elbow body, a mounting hole communicated with the inside of the elbow body is formed in the elbow body, and a plugging plate for plugging the opening end of the mounting hole is fixedly arranged on the elbow body through a screw. When the wireless flow sensor is used for detecting the gas flow in the bent pipe body, the rotating shaft is rotated on the fixed plate through the driving mechanism, and the wireless flow sensor is driven to rotate one circle in the limiting ring, so that the gas flow in the bent pipe body is detected for multiple times, at the moment, the PLC control system is used for calculating the average value of the gas flow detected by the wireless flow sensor for multiple times, a single-point detection mode in the bent pipe body is replaced, the detection precision of the gas flow in the bent pipe body is improved, and the detection precision of the gas flow in the connecting pipeline is improved.

Description

Elbow side-mounted gas flow meter

Technical Field

The invention relates to the technical field of flow detection equipment, in particular to a bent pipe side-mounted gas flow instrument.

Background

A flow meter is a device for measuring the flow rate of a fluid. It may provide information about the volume or mass of fluid per unit time through the conduit or passage. Flow meters are widely used in a variety of industrial and laboratory applications; when the gas is conveyed through the connecting pipeline, a flow meter or a flow sensor is installed on the connecting pipeline to monitor the gas flow in the connecting pipeline in real time so as to ensure the stability of the connecting pipeline on gas conveying.

At present, most of flow meters or flow sensors are fixed on a connecting pipeline when being installed, and when the flow meters or the flow sensors are used, gas in the connecting pipeline is detected through the flow meters or the flow sensors, however, when the gas flows, the gas in the connecting pipeline flows to the bent position of the connecting pipeline, the gas flowing direction can be changed, so that the gas flowing speed is influenced, and when the gas flows, the gas flow speeds at all positions in the bent position of the connecting pipeline are different, only single-point detection can be carried out on the bent position of the connecting pipeline through the installation mode of fixedly installing the flow meters or the flow sensors in the connecting pipeline, and the gas flow detection precision of the bent position of the connecting pipeline is lower, so that the gas flow detection precision in the connecting pipeline is reduced;

therefore, the application provides a bent pipe side-mounted gas flow meter.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a bent pipe side-mounted gas flow meter, which solves the problems in the background art.

In order to achieve the above purpose, the invention is realized by the following technical scheme:

the utility model provides a side-mounted gas flow meter of return bend, including the return bend body, the outside wall integrated into one piece of return bend body has directional arrow, set up the mounting hole that is linked together with its inside on the return bend body, pass through screw fixed mounting on the return bend body and be used for carrying out the shutoff board of shutoff to the mounting hole open end, set up the slot that is linked together with the mounting hole in the return bend body, the slot interpolation is equipped with the mounting panel that is used for carrying out the shutoff to the return bend body inside, the mounting panel can carry out the shutoff to the return bend body inside, set up the through-hole on the mounting panel, be linked together through the through-hole so that return bend body both ends are linked together;

a positioning ring is fixed in the through hole on the mounting plate, the positioning ring inclines along the direction of the pointing arrow, the outer side wall of the positioning ring is attached to the inner side wall of the through hole, a mounting groove is formed in the positioning ring and is far away from the pointing end of the pointing arrow, a first filter plate used for plugging the positioning ring is inserted in the mounting groove and is connected with a limiting ring used for limiting the first filter plate in a threaded manner;

the fixed plate is fixedly arranged on the limiting ring, the rotating shaft is rotatably arranged on the fixed plate, a connecting plate is fixedly arranged on one side, close to the first filter plate, of the rotating shaft, an arc-shaped plate is fixedly arranged at the free end of the connecting plate and close to the inner wall of the limiting ring, a wireless flow sensor is fixedly arranged on the arc-shaped plate, a driving mechanism is arranged on the plugging plate, one end of the driving mechanism extends into the through hole and is connected with the rotating shaft, and the driving mechanism is used for enabling the rotating shaft to rotate on the fixed plate;

the cleaning piece contacted with the first filter plate is arranged on the connecting plate and is used for cleaning the surface of the first filter plate, a protective shell sleeved outside the driving mechanism is fixed on the plugging plate, the top of the protective shell is in an opening shape, a protective cover for plugging the opening end of the protective shell is fixedly arranged on the protective shell through screws, a display screen is fixedly arranged on the protective cover, and the display screen is in communication connection with the wireless flow sensor.

Further: the driving mechanism comprises a rotating rod rotatably mounted on the plugging plate, one end of the rotating rod movably penetrates through the plugging plate and extends into the bent pipe body, the rotating rod is connected with the plugging plate through a sealing bearing, the rotating rod is connected with the rotating shaft through a bevel gear assembly, and a motor for driving the rotating rod to rotate is fixedly mounted on the plugging plate and positioned in the protective shell;

the cleaning piece comprises a cleaning brush which is fixedly arranged on the connecting plate and is attached to the first filter plate.

Further: a plurality of resetting pieces are arranged on the positioning ring and in the mounting groove, a sliding block is slidably arranged on the inner wall of the limiting ring along the direction of the filter plate, one end of the sliding block, which is far away from the first filter plate, is a cambered surface, and when the limiting ring limits the first filter plate, the first filter plate is contacted with the plurality of resetting pieces;

the reset piece comprises a guide shell fixedly arranged in the mounting groove, a guide rod movably penetrates through the end part of the guide shell, a spring fixedly connected with the positioning ring is sleeved outside the guide shell, and when the first filter plate is limited by the limiting ring, the first filter plate is contacted with the guide rod and the spring.

Further: one end of the rotating rod extending to the through hole is provided with a mounting cavity, and a cleaning mechanism acting on the wireless flow sensor is arranged in the mounting cavity and used for cleaning the surface of the wireless flow sensor;

the cleaning mechanism comprises an electric push rod fixedly installed in the installation cavity, an installation block is fixed at the end part of a piston rod of the electric push rod, and a brush roller which can be in contact with the wireless flow sensor is fixedly installed at the bottom of the installation block.

Further: the utility model discloses a clean-up subassembly is installed to the air inlet that is linked together with the installation intracavity portion on the dwang and be located the through-hole, installation piece lateral wall laminates with the installation intracavity lateral wall mutually, and the installation piece can block up the air inlet, and the roof extends to the shutoff board outside in the installation intracavity, and the gas outlet that is linked together with the installation intracavity portion is seted up on the dwang and is located the shutoff board outside on the dwang, just is located the protective housing on the shutoff board, and clean-up subassembly's one end is connected with the gas outlet, the other end is linked together with the return bend body is inside, clean-up subassembly is used for clearing up this internal particulate matter of return bend.

Further: the cleaning component comprises a negative pressure box fixedly mounted on the plugging plate, an air inlet pipe communicated with the interior of the negative pressure box is fixed at one end of the negative pressure box, a rotary joint communicated with the air outlet is fixedly mounted on the rotary rod, the end part of the air inlet pipe is connected with the rotary joint, a mounting opening is formed in one side, far away from the air inlet, of the negative pressure box, an exhaust fan is fixedly arranged on the negative pressure box and positioned in the mounting opening, an exhaust pipe sleeved outside the mounting opening is fixedly mounted on the negative pressure box, the end part of the exhaust pipe penetrates through the plugging plate and is communicated with the interior of the bent pipe body, a second filter plate for plugging the interior of the negative pressure box is mounted in the negative pressure box, and a check valve is fixedly mounted on the exhaust pipe.

Further: the negative pressure box comprises a box body fixedly installed on the plugging plate, the top of the box body is in an opening shape, a plugging groove is formed in the box body along the opening end of the box body, a second filter plate is inserted into the box body along the plugging groove, a box cover for plugging the top opening of the box body is hinged to the box body, the box cover is fixed with the box body through a hasp, and a valve body is fixedly installed on the air inlet pipe.

Further: one end of the exhaust pipe penetrating through the plugging plate is located at one side, far away from the first filter plate, of the locating ring, a rubber plate is fixedly installed on the box cover, and when the box cover plugs the opening end of the box body, the rubber plate deforms and is abutted to the box body.

Further: the two ends of the bent pipe body are fixedly provided with corrugated pipes, and one ends, far away from each other, of the two corrugated pipes are fixedly provided with flange plates;

the bent pipe body is provided with a positioning mechanism which is connected with the two corrugated pipes, and the positioning mechanism is used for positioning the two corrugated pipes.

Further: the positioning mechanism comprises a fixed shell fixedly arranged on the bent pipe body, a fixed rod movably penetrates through the end part of the fixed shell, a fixing piece acting on the fixed rod is arranged on the fixed shell, the fixing piece is used for fixing between the fixed rod and the fixed shell, two corrugated pipes are respectively fixedly provided with a fixed ring, connecting pieces connected with the two fixed rings are arranged on the fixed rod, and the fixed rod and the two fixed rings are fixed through the two connecting pieces;

the fixing piece comprises a limiting rod with threads penetrating through the fixing shell, and one end of the limiting rod penetrating through the fixing shell can be abutted against the fixing rod;

the connecting piece comprises a hinge block hinged at the end part of the fixed rod, a loop bar is rotatably arranged on the hinge block, and one end of the loop bar, far away from the hinge block, is threaded through a threaded rod fixedly connected with the fixed ring.

The invention provides a bent pipe side-mounted gas flow meter. Compared with the prior art, the method has the following beneficial effects:

when the wireless flow sensor is used for detecting the gas flow in the bent pipe body, the rotating shaft is enabled to rotate on the fixed plate through the driving mechanism, the wireless flow sensor is driven to rotate for one circle in the limiting ring, so that the gas flow in the bent pipe body is detected for a plurality of times, at the moment, the PLC control system is utilized for calculating the average value of the gas flow detected by the wireless flow sensor for a plurality of times, the single-point detection mode in the bent pipe body is replaced, the detection precision of the gas flow in the bent pipe body is improved, and the detection precision of the gas flow in the connecting pipeline is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic perspective view of the present invention;

FIG. 2 shows a schematic view of the mounting structure of the positioning mechanism of the present invention;

FIG. 3 shows an enlarged view of the invention at A in FIG. 2;

FIG. 4 shows a schematic structural view of the positioning mechanism of the present invention;

FIG. 5 shows a schematic view of the mounting structure of the mounting plate of the present invention;

FIG. 6 shows a schematic diagram of the mounting structure of the wireless flow sensor of the present invention;

FIG. 7 is a schematic view showing the installation structure of the reset member of the present invention;

FIG. 8 illustrates a schematic view of the mounting structure of the cleaning assembly of the present invention;

FIG. 9 is a schematic view showing the installation structure of the cleaning brush of the present invention;

the figure shows: 1. a bent pipe body; 11. a mounting hole; 12. a plugging plate; 121. a protective shell; 122. a protective cover; 123. a display screen; 13. a slot; 14. a mounting plate; 141. a through hole; 15. pointing to an arrow; 2. a positioning ring; 21. a mounting groove; 22. a first filter plate; 23. a limiting ring; 231. a slide block; 24. a reset member; 241. a guide housing; 242. a guide rod; 243. a spring; 3. a fixing plate; 31. a connecting plate; 32. an arc-shaped plate; 33. a wireless flow sensor; 34. cleaning the piece; 341. cleaning brushes; 35. a rotating shaft; 4. a driving mechanism; 41. a rotating lever; 411. a mounting cavity; 412. an air inlet; 413. an air outlet; 42. a bevel gear assembly; 43. a motor; 5. a cleaning mechanism; 51. an electric push rod; 52. a mounting block; 53. a brush roller; 6. cleaning the assembly; 61. a negative pressure tank; 611. a case; 612. a plug-in groove; 613. a case cover; 614. a rubber plate; 62. an air inlet pipe; 621. a valve body; 63. a rotary joint; 64. an exhaust pipe; 65. a non-return valve; 66. a second filter plate; 67. an exhaust fan; 7. a bellows; 71. a flange plate; 8. a positioning mechanism; 81. a fixed case; 82. a fixed rod; 83. a fixing member; 831. a limit rod; 84. a fixing ring; 85. a connecting piece; 851. a hinge block; 852. a loop bar; 853. a threaded rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

In order to solve the technical problems in the background technology, a bent pipe side-mounted gas flow meter is provided as follows:

referring to fig. 1-9, the side-mounted gas flow meter for the elbow provided by the invention comprises an elbow body 1, wherein an pointed arrow 15 is integrally formed on the outer side wall of the elbow body 1, when the side-mounted gas flow meter for the elbow is used, the pointed direction of the pointed arrow 15 is consistent with the gas conveying direction when the side-mounted gas flow meter for the elbow is used, a mounting hole 11 communicated with the inside of the elbow body is formed in the elbow body 1, a plugging plate 12 for plugging the opening end of the mounting hole 11 is fixedly arranged on the elbow body 1 through a screw, a slot 13 communicated with the mounting hole 11 is formed in the elbow body 1, and a mounting plate 14 for plugging the inside of the elbow body 1 is inserted into the slot 13, and specifically to be explained is: when the plugging plate 12 plugs the opening end of the mounting hole 11, the plugging plate 12 limits the mounting plate 14 inserted into the slot 13, the mounting plate 14 can plug the inside of the elbow body 1, the mounting plate 14 is provided with a through hole 141, and the two ends of the elbow body 1 are communicated through the through hole 141; the mounting plate 14 is provided with a positioning ring 2 fixed in the through hole 141, the positioning ring 2 inclines along the direction of the pointing arrow 15, the outer side wall of the positioning ring 2 is attached to the inner side wall of the through hole 141, one side of the positioning ring 2 far away from the pointing direction of the pointing arrow 15 is provided with a mounting groove 21, the positioning ring 2 is provided with a first filter plate 22 for plugging the positioning ring 2 in an inserted manner, the positioning ring 2 is provided with a limiting ring 23 for limiting the first filter plate 22 in a threaded manner, and the specific requirements are that: when the filter plate I22 is inserted into the mounting groove 21, the limiting ring 23 is in threaded connection with the positioning ring 2, the limiting ring 23 and the positioning ring 2 can be fixed, the limiting effect on the filter plate I22 is achieved, otherwise, the limiting ring 23 is reversely rotated, the limiting ring 23 and the positioning ring 2 are separated, the limiting ring 23 can be detached, the limiting on the filter plate I22 is canceled, the filter plate I22 can be pulled out from the mounting groove 21, and the effect of detaching the filter plate I22 is achieved; the limiting ring 23 is fixedly provided with a fixed plate 3, the fixed plate 3 is rotatably provided with a rotating shaft 35, one side of the rotating shaft 35, which is close to the first filter plate 22, is fixedly provided with a connecting plate 31, the free end of the connecting plate 31 is fixedly provided with an arc plate 32, which is close to the inner side wall of the limiting ring 23, the arc plate 32 is fixedly provided with a wireless flow sensor 33, the plugging plate 12 is provided with a driving mechanism 4, one end of the driving mechanism 4 extends into the through hole 141 and is connected with the rotating shaft 35, and the driving mechanism 4 is used for enabling the rotating shaft 35 to rotate on the fixed plate 3; the cleaning piece 34 that contacts with the first 22 filter boards is installed on the connecting plate 31, it is used for cleaning the first 22 filter boards, the protective housing 121 outside the actuating mechanism 4 is established to the cover that is fixed with on the shutoff board 12, the protective housing 121 top is the opening form, there is the visor 122 that is used for carrying out shutoff to its open end through screw fixed mounting on the protective housing 121, fixed mounting has the display screen 123 on the visor 122, display screen 123 and wireless flow sensor 33 communication connection, specifically to say: the display screen 123 is communicatively coupled to the wireless flow sensor 33 via a PLC control system.

When the gas flow detection device is used, when the wireless flow sensor 33 is used for detecting the gas flow in the bent pipe body 1, the rotating shaft 35 is rotated on the fixed plate 3 through the driving mechanism 4, so that the arc plate 32 can be driven to rotate around the rotating shaft 35 through the connecting plate 31, the wireless flow sensor 33 is driven to perform annular displacement in the limiting ring 23, the wireless flow sensor 33 rotates in the limiting ring 23 for one circle, the gas flow in the bent pipe body 1 is detected for multiple times, at the moment, the PLC control system is used for calculating the average value of the gas flow detected by the wireless flow sensor 33 for multiple times, and a single-point detection mode in the bent pipe body 1 is replaced, so that the gas flow detection precision in the bent pipe body 1 is improved, and the gas flow detection precision in a connecting pipeline is improved; through the design of the first filter plate 22, the filtering effect on the particles in the conveyed gas is realized, the particles in the gas are effectively prevented from being conveyed into the rear end pipeline and attached to the inner wall of the rear end connecting pipeline, the inner diameter of the connecting pipeline is reduced, and the conveying efficiency of the gas is reduced; through the design of clearance piece 34, when connecting plate 31 revolute 35 rotates, can realize through clearance piece 34 to the surface cleaning effect of filter one 22, the effectual condition that influences the gas circulation of particulate matter adhesion on filter one 22 of avoiding.

In this embodiment, the driving mechanism 4 includes a rotating rod 41 rotatably mounted on the plugging plate 12, one end of the rotating rod 41 movably penetrates through the plugging plate 12 and extends into the elbow body 1, the rotating rod 41 is connected with the plugging plate 12 through a sealing bearing, and the rotating rod 41 is connected with the rotating shaft 35 through a bevel gear assembly 42, which specifically shall be described as follows: the mounting plate 14 is provided with a notch, the rotating rod 41 movably penetrates through the notch on the mounting plate 14, the motor 43 for driving the rotating rod 41 to rotate is fixedly arranged on the plugging plate 12 and in the protective shell 121, when the device is used, the motor 43 is controlled to be started, the motor 43 works to drive the rotating rod 41 to rotate on the plugging plate 12, namely the bevel gear assembly 42 drives the rotating shaft 35 to rotate on the fixed plate 3, and the device is convenient to control; the cleaning piece 34 comprises a cleaning brush 341 fixedly installed on the connecting plate 31 and attached to the first filter plate 22, when the cleaning piece is used, the motor 43 works to drive the rotating shaft 35 to rotate on the fixed plate 3, the connecting plate 31 can be driven to rotate around the rotating shaft 35, the cleaning brush 341 is driven to rotate around the rotating shaft 35, and the cleaning effect on the surface of the first filter plate 22 can be achieved through the cleaning brush 341.

In this embodiment, the positioning ring 2 is provided with a plurality of resetting members 24 in the mounting groove 21, the inner side wall of the limiting ring 23 is slidably provided with a sliding block 231 along the direction of the first filter plate 22, one end of the sliding block 231 away from the first filter plate 22 is a cambered surface, and when the limiting ring 23 limits the first filter plate 22, the first filter plate 22 is contacted with the plurality of resetting members 24; the restoring member 24 includes a guiding shell 241 fixedly installed in the installation groove 21, a guiding rod 242 movably penetrates through the end portion of the guiding shell 241, a spring 243 fixedly connected with the positioning ring 2 is sleeved outside the guiding shell 241, and when the limiting ring 23 limits the first filter plate 22, the first filter plate 22 contacts with the guiding rod 242 and the spring 243.

Through the design of slider 231 and a plurality of return pieces 24, during the rotation of connecting plate 31 around pivot 35, when connecting plate 31 and slider 231 contact, connecting plate 31 and slider 231 go up the cambered surface and contact, thereby can make slider 231 slide to filter one 22 direction at spacing ring 23 inside wall, promote filter one 22 and displace in mounting groove 21, drive a plurality of guide bars 242 and slide to a plurality of shell 241 respectively, a plurality of springs 243 all receive the atress and take place deformation this moment, when connecting plate 31 rotates to slider 231 one side, a plurality of springs 243 all resume natural state, thereby promote filter one 22 and slide in mounting groove 21 and reset and form the conflict with spacing ring 23, at this moment, produce resonance between filter one 22 and the spacing ring 23, thereby make the particulate matter that is attached to filter one 22 surface drop under resonance effect, be favorable to the clearance to the particulate matter that filter one 22 surface was attached.

Example two

As shown in fig. 1 to 9, on the basis of the above embodiment, the present embodiment further provides the following:

in this embodiment, an installation cavity 411 is formed at one end of the rotation rod 41 extending to the through hole 141, and a cleaning mechanism 5 acting on the wireless flow sensor 33 is installed in the installation cavity 411 and is used for cleaning the surface of the wireless flow sensor 33; the cleaning mechanism 5 comprises an electric push rod 51 fixedly arranged in the mounting cavity 411, a mounting block 52 is fixedly arranged at the end part of a piston rod of the electric push rod 51, and a brush roller 53 which can be in contact with the wireless flow sensor 33 is fixedly arranged at the bottom of the mounting block 52.

When the surface particulate matters of the wireless flow sensor 33 are cleaned, the electric push rod 51 is controlled to enable the installation block 52 to displace in the installation cavity 411, the installation block 52 is enabled to displace outside the installation cavity 411, the brush roller 53 is driven to displace outside the installation cavity 411, the brush roller 53 can be in contact with the wireless flow sensor 33, at the moment, the motor 43 is controlled to work to drive the rotating rod 41 to rotate on the plugging plate 12, the rotating rod 41 rotates on the plugging plate 12, the wireless flow sensor 33 is driven to carry out annular displacement in the limiting ring 23, the rotating rod 41 rotates to drive the brush roller 53 to synchronously rotate, the brush roller 53 is enabled to intermittently contact with the wireless flow sensor 33, intermittent cleaning of the wireless flow sensor 33 through the brush roller 53 is achieved, the cleaning effect of the particulate matters attached to the surface of the wireless flow sensor 33 is effectively avoided, and the condition that the detection accuracy of the subsequent wireless flow sensor 33 is reduced is effectively avoided.

The driving mechanism rotates slowly and intermittently, so that the cleaning piece and the wireless flow sensor rotate slowly or intermittently, the influence on the gas flow rate is reduced, the flow rate at the bent pipe of the position can be comprehensively measured in a circumferential detection mode to judge whether the pipe is blocked or not, whether the pipe needs manual cleaning or not can be used as an important basis for adjusting the flow rate at the front section and the rear section, air flow recoil caused by overlarge flow rate at the bent pipe is avoided, and the maximum flow rate can be ensured.

In this embodiment, the air inlet 412 that is linked together with the inside of installation cavity 411 is seted up on the dwang 41 and is located the through-hole 141, installation piece 52 lateral wall is laminated with installation cavity 411 inside wall, and installation piece 52 can block up air inlet 412, can block up air inlet 412 through setting up installation piece 52, when effectually avoiding carrying gas, gas flows to installation cavity 411 through air inlet 412, influence the condition of wireless flow sensor 33 detection accuracy, the roof extends to the shutoff board 12 outside in the installation cavity 411, the gas outlet 413 that is linked together with installation cavity 411 is seted up on the dwang 41 and is located the shutoff board 12 outside, install cleaning assembly 6 on the shutoff board 12 and be located protective housing 121, cleaning assembly 6's one end is connected with gas outlet 413, the other end is linked together with the inside of return bend body 1, cleaning assembly 6 is used for clearing up return bend body 1 interior particulate matter.

Through the design of cleaning component 6, when cleaning up wireless flow sensor 33 surface particulate matter, at this moment, the installation piece 52 is to the outside displacement of installation cavity 411, cancel the shutoff to air inlet 412, behind the particulate matter clearance of attaching on filter one 22 and the wireless flow sensor 33, the particulate matter can float in return bend body 1, at this moment, during the gas circulation, it is in to drive the particulate matter to circulate to installation cavity 411 through air inlet 412, the rethread gas outlet 413 is discharged, at this moment, can utilize cleaning component 6 to clear up the gaseous with particulate matter that has through gas outlet 413 exhaust, the gaseous back to the return bend body 1 of discharging after the particulate matter clearance realizes the effect of cleaning up the particulate matter in the gaseous, and do not influence the transportation to gas.

In this embodiment, the cleaning assembly 6 includes a negative pressure tank 61 fixedly installed on the plugging plate 12, one end of the negative pressure tank 61 is fixed with an air inlet pipe 62 communicated with the interior thereof, a rotary joint 63 communicated with the air outlet 413 is fixedly installed on the rotary rod 41, the end of the air inlet pipe 62 is connected with the rotary joint 63, an installation opening is formed on the negative pressure tank 61 and on one side far away from the air inlet pipe 62, an exhaust fan 67 is fixedly installed on the negative pressure tank 61 and located in the installation opening, an exhaust pipe 64 sleeved outside the installation opening is fixedly installed on the negative pressure tank 61, the end of the exhaust pipe 64 penetrates through the plugging plate 12 and is communicated with the interior of the elbow body 1, a second filter plate 66 for plugging the interior thereof is installed in the negative pressure tank 61, a gap exists on one side, close to the air inlet pipe 62, of the second filter plate 66, and a check valve 65 is fixedly installed on the exhaust pipe 64.

When the filter plate is used, the gas circulation drives particles to circulate into the installation cavity 411 through the gas inlet 412, and then flows into the negative pressure box 61 through the gas inlet pipe 62 to be contacted with the filter plate II 66 when discharged through the gas outlet 413, the particles in the gas can be filtered through the filter plate II 66, the filtered particles remain in the negative pressure box 61, and the filtered gas can be conveyed into the bent pipe body 1 through the gas outlet pipe 64, so that the cleaning effect of the particles in the gas is realized; during the period, the exhaust fan 67 is controlled to be opened, the exhaust fan 67 works, and the air in the negative pressure box 61 is pumped out and then discharged into the exhaust pipe 64, so that the air circulation speed of the negative pressure box 61 in the direction of the exhaust pipe 64 is accelerated, and the cleaning of particulate matters in the air is accelerated; by the design of the non-return valve 65, the reverse flow of gas into the negative pressure tank 61 through the exhaust pipe 64 is effectively avoided.

Example III

in this embodiment, the negative pressure tank 61 includes a tank body 611 fixedly mounted on the plugging plate 12, the top of the tank body 611 is in an opening shape, a plugging slot 612 is formed in the tank body 611 along the opening end of the tank body 611, the second filter plate 66 is plugged into the tank body 611 along the plugging slot 612, a tank cover 613 for plugging the top opening of the tank body 611 is hinged on the tank body 611, the tank cover 613 is fixed with the tank body 611 through a buckle, and a valve body 621 is fixedly mounted on the air inlet pipe 62.

When the second filter plate 66 is replaced, the air inlet pipe 62 is closed by the closing valve 621, the fixation of the case cover 613 and the case body 611 by the hasp is canceled, the case cover 613 can be rotated on the case body 611 to cancel the blocking of the opening end of the case body 611, the second filter plate 66 can be pulled out of the inserting groove 612 to detach the second filter plate 66, the second filter plate 66 can be replaced, and when the second filter plate 66 filters particles in air, the filtered particles remain in the negative pressure case 61 and are positioned in a gap of the second filter plate 66 on one side close to the air inlet pipe 62, and the particles remaining in the negative pressure case 61 and positioned in a gap of the second filter plate 66 on one side close to the air inlet pipe 62 can be cleaned.

In this embodiment, the exhaust pipe 64 penetrates through the plugging plate 12, and one end of the plugging plate 12 is located at one side of the locating ring 2 away from the first filter plate 22, so that the gas cleaned by the particulate matters in the gas is directly discharged into the rear end connecting pipeline, which is beneficial to conveying the gas, and the rubber plate 614 is fixedly mounted on the box cover 613, so that when the box cover 613 plugs the opening end of the box body 611, the rubber plate 614 deforms and collides with the box body 611, and the design of the rubber plate 614 increases the fit between the box cover 613 and the box body 611, thereby increasing the tightness between the box cover 613 and the box body 611.

In this embodiment, the two ends of the elbow body 1 are fixedly provided with the bellows 7, the two ends of the two bellows 7, which are far away from each other, are fixedly provided with the flange plates 71, and due to the design of the bellows 7 and the flange plates 71, the bellows 7 can deform to adjust the positions of the two flange plates 71, so that the elbow body 1 is convenient to connect with an external pipeline, and simultaneously, the two bellows 7 deform to adjust the positions of the two flange plates 71 according to the included angle between the connecting pipelines at two sides of the elbow body 1, so that the positions of the two flange plates 71 are adjusted according to the installation environment, and the applicability of the flowmeter is improved; install the positioning mechanism 8 that is connected with two bellows 7 homogeneous phases on the return bend body 1, positioning mechanism 8 is used for fixing a position two bellows 7, through the design of positioning mechanism 8, realizes two bellows 7 location effects for after accomplishing the installation to this flowmeter, increase this flowmeter installation stability.

In this embodiment, the positioning mechanism 8 includes a fixing shell 81 fixedly installed on the elbow body 1, a fixing rod 82 movably penetrates through an end portion of the fixing shell 81, a fixing member 83 acting on the fixing rod 82 is installed on the fixing shell 81, the fixing member 83 is used for fixing between the fixing rod 82 and the fixing shell 81, two fixing rings 84 are fixed on the corrugated pipes 7, a connecting member 85 connected with the two fixing rings 84 is installed on the fixing rod 82, and fixing is performed between the fixing rod 82 and the two fixing rings 84 through the two connecting members 85; the fixing piece 83 comprises a limiting rod 831 penetrating through the fixing shell 81 through threads, and one end of the limiting rod 831 penetrating through the fixing shell 81 can be abutted against the fixing rod 82; the connecting piece 85 comprises a hinge block 851 hinged at the end part of the fixed rod 82, a sleeve rod 852 is rotatably installed on the hinge block 851, and one end of the sleeve rod 852 far away from the hinge block 851 is threaded and penetrates through a threaded rod 853 fixedly connected with the fixed ring 84.

When the position of the flange piece 71 is adjusted by deforming the corrugated pipe 7, the limiting rod 831 is rotated to prevent the limiting rod 831 from abutting against the fixing rod 82, and the fixing between the fixing rod 82 and the fixing shell 81 is canceled, so that the fixing rod 82 can slide along the fixing shell 81 to deform the two corrugated pipes 7; through the design of the connecting piece 85, acting force is applied to the loop bar 852, so that the loop bar 852 rotates on the hinging block 851, the threaded rod 853 moves along the loop bar 852, the hinging block 851 rotates on the fixed rod 82, and the position of the fixed ring 84 fixed with the threaded rod 853 can be adjusted, so that the corrugated pipes 7 are deformed, the independent adjusting effect on the two corrugated pipes 7 is realized, and the applicability of the flowmeter is further improved; after the adjustment is completed, the two flange pieces 71 are respectively connected with an external pipeline, and then the fixing rod 82 and the fixing shell 81 can be fixed by reversely rotating the limiting rod 831, so that the two corrugated pipes 7 can be positioned.

The working principle and the using flow of the invention are as follows:

when in installation:

when the positions of the two flange pieces 71 are adjusted according to the installation environment, the limiting rod 831 is rotated to prevent the two flange pieces 71 from abutting against the fixing rod 82, the fixing between the fixing rod 82 and the fixing shell 81 is canceled, the fixing rod 82 can slide along the fixing shell 81, the two corrugated pipes 7 are deformed, the positions of the two flange pieces 71 are adjusted, the two sleeve rods 852 are respectively rotated to enable the threaded rods 853 to move along the sleeve rods 852, the hinged blocks 851 are rotated on the fixing rod 82, the positions of the fixing rings 84 fixed with the threaded rods 853 can be adjusted, the corrugated pipes 7 are deformed, the independent adjustment effect of the two corrugated pipes 7 is achieved, the positions of the two flange pieces 71 are adjusted according to the installation environment, after the adjustment is completed, the two flange pieces 71 are respectively connected with an external pipeline, the fixing rod 82 and the fixing shell 81 can be fixed, and the two corrugated pipes 7 can be positioned by reversely rotating the limiting rod 831;

when the wireless flow sensor 33 is used for detecting the gas flow in the elbow body 1, the motor 43 is controlled to be started, the motor 43 works to drive the rotating rod 41 to rotate on the plugging plate 12, the bevel gear assembly 42 drives the rotating shaft 35 to rotate on the fixed plate 3, the connecting plate 31 drives the arc plate 32 to rotate around the rotating shaft 35, the wireless flow sensor 33 is driven to perform annular displacement in the limiting ring 23, the wireless flow sensor 33 rotates in the limiting ring 23 for one circle, so that the gas flow in the elbow body 1 is detected for multiple times, at the moment, the PLC control system is used for calculating the average value of the gas flow detected by the wireless flow sensor 33 for multiple times, the single-point detection mode in the elbow body 1 is replaced, so that the detection precision of the gas flow in the elbow body 1 is improved, and the detection precision of the gas flow in the connecting pipeline is improved; through the design of the first filter plate 22, the filtering effect on the particles in the conveyed gas is realized, the particles in the gas are effectively prevented from being conveyed into the rear end pipeline and attached to the inner wall of the rear end connecting pipeline, the inner diameter of the connecting pipeline is reduced, and the conveying efficiency of the gas is reduced; when the motor 43 works to drive the rotating shaft 35 to rotate on the fixed plate 3, the connecting plate 31 is driven to rotate around the rotating shaft 35, and the cleaning brush 341 is driven to rotate around the rotating shaft 35, so that the cleaning effect on the surface of the first filter plate 22 can be realized through the cleaning brush 341;

through the design of the sliding block 231 and the plurality of resetting pieces 24, when the connecting plate 31 rotates around the rotating shaft 35, when the connecting plate 31 contacts with the sliding block 231, the connecting plate 31 contacts with the cambered surface on the sliding block 231, so that the sliding block 231 slides towards the first filter plate 22 on the inner side wall of the limiting ring 23, the first filter plate 22 is pushed to displace in the mounting groove 21, the plurality of guide rods 242 are driven to slide into the plurality of guide shells 241 respectively, at the moment, the plurality of springs 243 are stressed to deform, and when the connecting plate 31 rotates to one side of the sliding block 231, the plurality of springs 243 are restored to a natural state, so that the first filter plate 22 is pushed to slide in the mounting groove 21 to be reset and collide with the limiting ring 23, at the moment, resonance is generated between the first filter plate 22 and the limiting ring 23, and particles attached to the surface of the first filter plate 22 drop under the resonance effect, so that the particles attached to the surface of the first filter plate 22 are cleaned;

when the surface particulate matters of the wireless flow sensor 33 are cleaned, the electric push rod 51 is controlled to enable the installation block 52 to displace in the installation cavity 411, the installation block 52 is enabled to displace outside the installation cavity 411, the brush roller 53 is driven to displace outside the installation cavity 411, the brush roller 53 can be contacted with the wireless flow sensor 33, at the moment, the motor 43 is controlled to work to drive the rotating rod 41 to rotate on the plugging plate 12, the rotating rod 41 rotates on the plugging plate 12, when the wireless flow sensor 33 is driven to carry out annular displacement in the limiting ring 23, the rotating rod 41 rotates to drive the brush roller 53 to synchronously rotate, the brush roller 53 is enabled to intermittently contact with the wireless flow sensor 33, thereby realizing intermittent cleaning of the wireless flow sensor 33 through the brush roller 53, realizing cleaning effect of the particulate matters attached to the surface of the wireless flow sensor 33, and effectively avoiding the condition that the particulate matters attached to the surface of the wireless flow sensor 33 are reduced, thereby effectively avoiding the subsequent condition that the detection accuracy of the wireless flow sensor 33 is reduced; during the period, the mounting block 52 moves towards the outside of the mounting cavity 411, the blocking of the air inlet 412 is canceled, the particles attached to the first filter plate 22 and the wireless flow sensor 33 float in the bent pipe body 1 after being cleaned, at the moment, when the gas flows, the particles are driven to flow into the mounting cavity 411 through the air inlet 412 and then are discharged through the air outlet 413, and flow into the negative pressure box 61 through the air inlet pipe 62 to be contacted with the second filter plate 66, so that the particles in the gas can be filtered through the second filter plate 66, the filtered particles remain in the negative pressure box 61, and the filtered gas can be conveyed into the bent pipe body 1 through the exhaust pipe 64, so that the cleaning effect of the particles in the gas can be realized; during the period, the exhaust fan 67 is controlled to be opened, the exhaust fan 67 works, and the air in the negative pressure box 61 is pumped out and then discharged into the exhaust pipe 64, so that the air circulation speed of the negative pressure box 61 in the direction of the exhaust pipe 64 is accelerated, and the cleaning of particulate matters in the air is accelerated; by the design of the check valve 65, the gas is effectively prevented from flowing back into the negative pressure tank 61 through the exhaust pipe 64;

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a return bend side-mounted gas flow appearance which characterized in that: the pipe bending device comprises a pipe bending body, wherein an pointed arrow is integrally formed on the outer side wall of the pipe bending body, a mounting hole communicated with the inside of the pipe bending body is formed in the pipe bending body, a plugging plate for plugging the opening end of the mounting hole is fixedly arranged on the pipe bending body through screws, a slot communicated with the mounting hole is formed in the pipe bending body, a mounting plate for plugging the inside of the pipe bending body is inserted into the slot, a through hole is formed in the mounting plate, and two ends of the pipe bending body are communicated through the through hole;

the fixed plate is fixedly arranged on the limiting ring, the rotating shaft is rotatably arranged on the fixed plate, a connecting plate is fixedly arranged on one side, close to the first filter plate, of the rotating shaft, an arc-shaped plate is fixedly arranged at the free end of the connecting plate and close to the inner wall of the limiting ring, a wireless flow sensor is fixedly arranged on the arc-shaped plate, a driving mechanism is arranged on the plugging plate, and one end of the driving mechanism extends into the through hole and is connected with the rotating shaft;

the cleaning piece contacted with the first filter plate is arranged on the connecting plate and is used for cleaning the surface of the first filter plate, a protective shell sleeved outside the driving mechanism is fixed on the plugging plate, the top of the protective shell is in an opening shape, a protective cover for plugging the opening end of the protective shell is fixedly arranged on the protective shell through a screw, a display screen is fixedly arranged on the protective cover, and the display screen is in communication connection with the wireless flow sensor;

the driving mechanism drives the cleaning piece and the wireless flow sensor to synchronously rotate through the connecting plate, the cleaning piece is used for cleaning particles on one surface of the filter plate, and the wireless flow sensor is used for collecting flow data in multiple points in the circumferential direction.

2. The elbow side mounted gas flow meter of claim 1, wherein: the driving mechanism comprises a rotating rod rotatably mounted on the plugging plate, one end of the rotating rod movably penetrates through the plugging plate and extends into the bent pipe body, the rotating rod is connected with the plugging plate through a sealing bearing, the rotating rod is connected with the rotating shaft through a bevel gear assembly, and a motor for driving the rotating rod to rotate is fixedly mounted on the plugging plate and positioned in the protective shell;

3. The elbow side mounted gas flow meter of claim 2, wherein: a plurality of resetting pieces are arranged on the positioning ring and in the mounting groove, a sliding block is slidably arranged on the inner wall of the limiting ring along the direction of the filter plate, one end of the sliding block, which is far away from the first filter plate, is a cambered surface, and when the limiting ring limits the first filter plate, the first filter plate is contacted with the plurality of resetting pieces;

4. A side-mounted elbow gas flow meter according to claim 3, wherein: one end of the rotating rod extending to the through hole is provided with a mounting cavity, and a cleaning mechanism acting on the wireless flow sensor is arranged in the mounting cavity and used for cleaning the surface of the wireless flow sensor;

5. The elbow side mounted gas flow meter of claim 4, wherein: the utility model discloses a clean-up subassembly is installed to the air inlet that is linked together with the installation intracavity portion on the dwang and be located the through-hole, installation piece lateral wall laminates with the installation intracavity lateral wall mutually, and the installation piece can block up the air inlet, and the roof extends to the shutoff board outside in the installation intracavity, and the gas outlet that is linked together with the installation intracavity portion is seted up on the dwang and is located the shutoff board outside on the dwang, just is located the protective housing on the shutoff board, and clean-up subassembly's one end is connected with the gas outlet, the other end is linked together with the return bend body is inside, clean-up subassembly is used for clearing up this internal particulate matter of return bend.

6. The elbow side mounted gas flow meter of claim 5, wherein: the cleaning component comprises a negative pressure box fixedly mounted on the plugging plate, an air inlet pipe communicated with the interior of the negative pressure box is fixed at one end of the negative pressure box, a rotary joint communicated with the air outlet is fixedly mounted on the rotary rod, the end part of the air inlet pipe is connected with the rotary joint, a mounting opening is formed in one side, far away from the air inlet, of the negative pressure box, an exhaust fan is fixedly arranged on the negative pressure box and positioned in the mounting opening, an exhaust pipe sleeved outside the mounting opening is fixedly mounted on the negative pressure box, the end part of the exhaust pipe penetrates through the plugging plate and is communicated with the interior of the bent pipe body, a second filter plate for plugging the interior of the negative pressure box is mounted in the negative pressure box, and a check valve is fixedly mounted on the exhaust pipe.

7. The elbow side mounted gas flow meter of claim 6, wherein: the negative pressure box comprises a box body fixedly installed on the plugging plate, the top of the box body is in an opening shape, a plugging groove is formed in the box body along the opening end of the box body, a second filter plate is inserted into the box body along the plugging groove, a box cover for plugging the top opening of the box body is hinged to the box body, the box cover is fixed with the box body through a hasp, and a valve body is fixedly installed on the air inlet pipe.

8. The elbow side mounted gas flow meter of claim 7, wherein: one end of the exhaust pipe penetrating through the plugging plate is located at one side, far away from the first filter plate, of the locating ring, a rubber plate is fixedly installed on the box cover, and when the box cover plugs the opening end of the box body, the rubber plate deforms and is abutted to the box body.

9. The elbow side mounted gas flow meter of claim 8, wherein: the two ends of the bent pipe body are fixedly provided with corrugated pipes, and one ends, far away from each other, of the two corrugated pipes are fixedly provided with flange plates;

10. The elbow side mounted gas flow meter of claim 9, wherein: the positioning mechanism comprises a fixed shell fixedly arranged on the bent pipe body, a fixed rod movably penetrates through the end part of the fixed shell, a fixing piece acting on the fixed rod is arranged on the fixed shell, the fixing piece is used for fixing between the fixed rod and the fixed shell, two corrugated pipes are respectively fixedly provided with a fixed ring, connecting pieces connected with the two fixed rings are arranged on the fixed rod, and the fixed rod and the two fixed rings are fixed through the two connecting pieces;