Combustion boiler furnace velocity field measuring device

Abstract

The utility model provides a combustion boiler furnace velocity field measuring device comprising a fixed disc, the fixed disc is provided with a group of uniformly distributed straight grooves, each straight groove is internally provided with a round rod, each round rod is connected with the fixed disc, and the fixed disc is respectively connected with symmetrical mounting plates corresponding to each straight groove; and the L frames are fixedly connected with sliding blocks respectively, each sliding block is arranged in the corresponding straight groove, each round rod penetrates through the corresponding sliding block, each L frame is connected with a screw rod through a bearing, and each L frame is connected with a guide vertical rod. The utility model relates to the technical field of measurement, in particular to a combustion boiler furnace velocity field measuring device. Aiming at the defects in the prior art, the combustion boiler furnace velocity field measuring device is developed, the position of the ultrasonic transceiver can be adjusted according to the size of a boiler, and the boiler furnace velocity field can be conveniently measured.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a combustion boiler furnace velocity field measuring device. Background Art

[0002] The visualization of the combustion air dynamic field in the furnace is of great significance for revealing the nature of combustion phenomena, the laws of the combustion process, and the development of combustion theory. At the same time, the accurate measurement of the furnace air dynamic field plays a key role in improving the design method of combustion equipment, optimizing equipment operation, and improving the reliability and economy of boiler operation. Air velocity is one of the most commonly measured parameters in boiler combustion, and different gas media have different requirements for velocity measurement devices.

[0003] The acoustic method for measuring the furnace velocity field is based on the propagation characteristics of sound waves in the flow field. By evenly setting sound wave transmitters and receivers on the four walls of the same section of the furnace, multiple intertwined sound wave propagation paths are formed. When sound waves propagate in the flow field, their speed will be affected by the flow field velocity. By measuring the propagation time of sound waves in the flow field, the velocity distribution of the flow field can be inferred.

[0004] Existing technology, such as the utility model of an acoustic combustion boiler furnace velocity field measurement device, authorization announcement number CN201522502U, saves the traditional power field measurement, which requires setting up scaffolding in the furnace and requiring staff to enter the furnace to perform point-by-point measurement, a lot of work and time, and the fan operation costs during the period.

[0005] At present, there is still a lack of a device that can facilitate the adjustment of the position of the ultrasonic transceiver according to the model of the boiler, realize the measurement of the boiler furnace velocity field, and at the same time, realize the measurement of different sections, so that the measurement is more accurate.

[0006] Therefore, in view of the above problems, a combustion boiler furnace velocity field measuring device is proposed to solve the above problems. Utility Model Content

[0007] The utility model aims at the deficiencies of the prior art and develops a combustion boiler furnace velocity field measuring device. The utility model can adjust the position of an ultrasonic transceiver according to the size of the boiler, thereby conveniently realizing the boiler furnace velocity field measurement.

[0008] The technical solution of the utility model to solve the technical problem is as follows: The utility model provides a combustion boiler furnace velocity field measuring device, including: a fixed plate, the fixed plate is provided with a group of uniformly distributed straight grooves, each of the straight grooves is provided with a round rod, each of the round rods is connected to the fixed plate, and the fixed plate is connected to a symmetrical mounting plate corresponding to each of the straight grooves; a group of L frames, respectively fixedly connected to sliders, each of the sliders is respectively provided in the corresponding straight grooves, each of the round rods passes through the corresponding sliders, each of the L frames is respectively connected to a screw rod with a bearing, and each of the L frames is respectively connected to a guide vertical rod; a group of lifting frames, each of the screw rods is respectively threadedly connected to the corresponding lifting frame, and each of the guide vertical rods passes through the corresponding lifting frame; a group of ultrasonic transceivers, respectively connected to the lower ends of the corresponding lifting frames. The ultrasonic transceiver realizes adjustment along the height direction of the boiler and radial movement along the cross section of the boiler furnace at the same time, so as to realize adjustment according to the boiler model.

[0009] As an optimization, the fixed disk is connected to the circular cover, the circular cover is rotatably connected to the circular ring, the circular ring is provided with a group of evenly distributed inclined grooves, the fixed disk is connected to the fixed shaft, the fixed shaft is rotatably connected to the electric push rod, the push rod of the electric push rod is rotatably connected to the circular ring, each of the sliders is respectively connected to the power round block, each of the power round blocks is respectively arranged in the corresponding inclined groove. By using the electric push rod to drive, the power round block is arranged in the inclined groove, providing power for the ultrasonic transceiver to move radially along the cross section of the boiler furnace.

[0010] As an optimization, the circular cover is connected to a motor, the output shaft of the motor is connected to a driving bevel gear, the driving bevel gear meshes with a group of evenly distributed driven bevel gears, each of the driven bevel gears is respectively connected to a square shaft, and each of the square shafts is respectively connected to the corresponding mounting plate by a bearing. The square shaft is driven by a motor and the bevel gears are meshed to achieve rotation.

[0011] As an optimization, each of the L frames is respectively connected to a square hole shaft by a bearing, each of the square shafts is respectively arranged in a square hole of the corresponding square hole shaft, each of the square hole shafts is respectively connected to a transmission bevel gear, each of the screw rods is respectively connected to a power bevel gear, and each of the transmission bevel gears is respectively meshed with a corresponding power bevel gear. By adopting bevel gear meshing, the square shaft is arranged in the square hole shaft, providing power for the ultrasonic transceiver to move along the height direction of the boiler.

[0012] As an optimization, at least one of the lifting frames is connected to a distance measuring sensor. By using the distance measuring sensor, the height position of the ultrasonic transceiver can be indirectly measured, which facilitates the adjustment of the ultrasonic transceiver.

[0013] As an optimization, at least one of the guide vertical rods is connected to a limit plate. By adopting the limit plate, the lifting frame is prevented from being separated from the screw rod.

[0014] As an optimization, the fixing plate is connected to a symmetrical hanger. By adopting the hanger, it is convenient to install the device on the ceiling.

[0015] As an optimization, the fixing plate is connected to a symmetrical Y frame, and the symmetrical Y frame is respectively connected to a symmetrical wheel mounting seat. By adopting the Y frame and the wheels, the device can be easily transferred and used. The wheels have a self-locking function, which is convenient for locking the device after it is placed in place.

[0016] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0017] (1) This device is driven by an electric push rod, and the power round block is set in the inclined groove, so that the ultrasonic transceiver can move radially along the cross section of the boiler furnace, and can be adjusted according to the boiler model.

[0018] (2) This device is driven by a motor and uses bevel gear meshing to adjust the ultrasonic transceiver along the height direction of the boiler, thereby achieving adjustment according to the boiler model.

[0019] (3) This device uses a distance measuring sensor to facilitate confirmation of the position of the ultrasonic transceiver along the height direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0022] Figure 2 It is a partially cutaway three-dimensional structural schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 1 .

[0024] Figure 4 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 2 .

[0025] Figure 5 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 3 .

[0026] Figure 6 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0027] Figure 7 The three-dimensional structure of the utility model is shown in FIG. Figure 3 .

[0028] In the figure: 1, fixed plate, 2, circular ring, 3, inclined groove, 4, circular cover, 5, electric push rod, 6, fixed shaft, 7, straight groove, 8, motor, 9, round rod, 10, mounting plate, 11, square shaft, 12, driven bevel gear, 13, driving bevel gear, 14, power round block, 15, slider, 16, transmission bevel gear, 17, L frame, 18, power bevel gear, 19, guide vertical rod, 20, screw, 21, lifting frame, 22, ultrasonic transceiver, 23, limit plate, 24, distance sensor, 25, square hole shaft, 26, hanger, 27, Y frame, 28, wheel. DETAILED DESCRIPTION

[0029] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] like Figures 1 to 7As shown, embodiment 1: a combustion boiler furnace velocity field measuring device, comprising: a fixed plate 1, the fixed plate 1 is provided with a group of uniformly distributed straight grooves 7, each of the straight grooves 7 is provided with a round rod 9, each of the round rods 9 is connected to the fixed plate 1, and the fixed plate 1 is connected to a symmetrical mounting plate 10 corresponding to each of the straight grooves 7; a group of L frames 17, respectively fixedly connected to sliders 15, each of the sliders 15 is respectively arranged in the corresponding straight grooves 7, each of the round rods 9 passes through the corresponding sliders 15, each of the L frames 17 is respectively connected to a screw rod 20 by a bearing, and each of the L frames 17 is respectively connected to a guide vertical rod 19; a group of lifting frames 21, each of the screw rods 20 is respectively threadedly connected to the corresponding lifting frames 21, and each of the guide vertical rods 19 passes through the corresponding lifting frames 21; a group of ultrasonic transceivers 22, respectively connected to the lower ends of the corresponding lifting frames 21. The ultrasonic transceiver 22 realizes adjustment along the height direction of the boiler and radial movement along the cross section of the boiler furnace, so as to realize adjustment according to the boiler model.

[0031] The fixed disk 1 is connected to the circular cover 4, the circular cover 4 is rotatably connected to the circular ring 2, the circular ring 2 is provided with a group of evenly distributed inclined grooves 3, the fixed disk 1 is connected to the fixed shaft 6, the fixed shaft 6 is rotatably connected to the electric push rod 5, the push rod of the electric push rod 5 is rotatably connected to the circular ring 2, each of the sliders 15 is respectively connected to the power round block 14, and each of the power round blocks 14 is respectively arranged in the corresponding inclined groove 3. By driving the electric push rod 5, the power round block 14 is arranged in the inclined groove 3, providing power for the ultrasonic transceiver 22 to move radially along the cross section of the boiler furnace.

[0032] The model of the electric push rod 5 is XTL50.

[0033] The circular cover 4 is connected to the motor 8, the output shaft of the motor 8 is connected to the driving bevel gear 13, the driving bevel gear 13 is meshed with a group of evenly distributed driven bevel gears 12, each of the driven bevel gears 12 is respectively connected to the square shaft 11, and each of the square shafts 11 is respectively connected to the corresponding mounting plate 10. The square shaft 11 is driven by the motor 8 and the bevel gears are meshed to realize the rotation of the square shaft 11.

[0034] The model of the motor 8 is servo motor 110ST-M04030LFB.

[0035] Each of the L-frames 17 is respectively connected to the square hole shaft 25 by a bearing, each of the square shafts 11 is respectively arranged in the square hole of the corresponding square hole shaft 25, each of the square hole shafts 25 is respectively connected to the transmission bevel gear 16, each of the screw rods 20 is respectively connected to the power bevel gear 18, and each of the transmission bevel gears 16 is respectively meshed with the corresponding power bevel gear 18. By adopting the meshing of bevel gears, the square shaft 11 is arranged in the square hole shaft 25, providing power for the ultrasonic transceiver 22 to move along the height direction of the boiler.

[0036] At least one of the lifting frames 21 is connected to a distance measuring sensor 24. By using the distance measuring sensor 24, the height position of the ultrasonic transceiver 22 is indirectly measured, so that the ultrasonic transceiver 22 can be adjusted conveniently.

[0037] The model of the distance measuring sensor 24 is HC-SR04.

[0038] At least one of the guide vertical rods 19 is connected to a limit plate 23. By using the limit plate 23, the lifting frame 21 is prevented from being separated from the screw rod 20.

[0039] The ultrasonic transceiver 22 is electrically connected to the computer via an A / D card.

[0040] The ultrasonic transceiver 22 includes a transmitter and a receiver. The sound wave transmitter converts the electrical signal into a sound wave and transmits it into the furnace. After the sound wave propagates in the furnace, it is received by the sound wave receiver and converted into an electrical signal. These electrical signals are converted into digital signals through an A / D card and transmitted to a computer. The computer processes the received sound wave signal and calculates the propagation time of the sound wave in the flow field by methods such as a cross-correlation algorithm. Then, the velocity distribution of the flow field is inferred based on the sound wave propagation characteristics.

[0041] The workflow of this embodiment is:

[0042] In the initial state, the ultrasonic transceiver 22 is at its uppermost end in the height direction, away from the center of the fixed plate 1 .

[0043] The fixing plate 1 is installed in a suitable position so that the boiler is directly below the area where the ultrasonic transceiver 22 is formed.

[0044] The motor 8 is controlled to rotate, the motor 8 drives the active bevel gear 13 to rotate, the active bevel gear 13 drives the driven bevel gear 12, the square shaft 11, the square hole shaft 25 and the transmission bevel gear 16 to rotate, the transmission bevel gear 16 drives the power bevel gear 18 and the screw 20 to rotate, the screw 20 drives the lifting frame 21 to move along the guide vertical rod 19, the lifting frame 21 drives the ultrasonic transceiver 22 and the distance sensor 24 to move downward, so that the ultrasonic transceiver 22 is lowered to a suitable height, and the motor 8 is turned off. The electric push rod 5 is controlled to extend, the electric push rod 5 drives the ring 2 to rotate, the ring 2 drives the electric push rod 5 to swing, the ring 2 drives the power round block 14 to move along the inclined groove 3, the power round block 14 drives the slider 15 to move along the round rod 9 in the straight groove 7, the slider 15 drives the L frame 17 to move, the L frame 17 drives the square hole shaft 25 to move along the square shaft 11, and the square hole shaft 25 drives the transmission bevel gear 16 to move. The L frame 17 drives the screw 20, the power bevel gear 18, the guide vertical rod 19, the limit plate 23, the lifting frame 21, the ultrasonic transceiver 22 and the distance sensor 24 to move, so that the ultrasonic transceiver 22 and the boiler are at an appropriate distance, the electric push rod 5 is closed, and the ultrasonic transceiver 22 is operated to realize the velocity measurement of the flow field.

[0045] Embodiment 2: This embodiment is further described on the basis of embodiment 1, wherein the fixing plate 1 is connected to a symmetrical hanger 26. By using the hanger 26, it is convenient to install the device on the ceiling.

[0046] Embodiment 3: This embodiment is further described on the basis of embodiment 1, wherein the fixed plate 1 is connected to a symmetrical Y-frame 27, and the symmetrical Y-frame 27 is respectively connected to the mounting bases of symmetrical wheels 28. By using the Y-frame 27 and the wheels 28, the device can be easily transferred and used. The wheels 28 have a self-locking function, which facilitates locking the device after it is placed in place.

[0047] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A combustion boiler furnace velocity field measuring device, characterized in that: include: A fixed plate (1), the fixed plate (1) being provided with a group of evenly distributed straight grooves (7), each straight groove (7) being provided with a round rod (9), each round rod (9) being connected to the fixed plate (1), and the fixed plate (1) being connected to a symmetrical mounting plate (10) corresponding to each straight groove (7); A group of L-frames (17) are respectively fixedly connected to the sliders (15), each of the sliders (15) is respectively arranged in a corresponding straight groove (7), each of the round rods (9) passes through the corresponding slider (15), each of the L-frames (17) is respectively connected to a screw rod (20) by a bearing, and each of the L-frames (17) is respectively connected to a guide vertical rod (19); A group of lifting frames (21), each of the screw rods (20) being threadedly connected to a corresponding lifting frame (21), and each of the guide vertical rods (19) passing through a corresponding lifting frame (21); A group of ultrasonic transceivers (22) are respectively connected to the lower ends of the corresponding lifting frames (21).

2. The combustion boiler furnace velocity field measuring device according to claim 1 is characterized in that: The fixed disk (1) is connected to the circular cover (4), the circular cover (4) is rotatably connected to the circular ring (2), the circular ring (2) is provided with a group of evenly distributed inclined grooves (3), the fixed disk (1) is connected to the fixed shaft (6), the fixed shaft (6) is rotatably connected to the electric push rod (5), the push rod of the electric push rod (5) is rotatably connected to the circular ring (2), each of the sliders (15) is respectively connected to the power round block (14), and each of the power round blocks (14) is respectively arranged in the corresponding inclined groove (3).

3. A combustion boiler furnace velocity field measuring device according to claim 2, characterized in that: The circular cover (4) is connected to a motor (8), an output shaft of the motor (8) is connected to a driving bevel gear (13), the driving bevel gear (13) meshes with a group of evenly distributed driven bevel gears (12), each of the driven bevel gears (12) is respectively connected to a square shaft (11), and each of the square shafts (11) is respectively connected to a corresponding mounting plate (10) via a bearing.

4. A combustion boiler furnace velocity field measuring device according to claim 3, characterized in that: Each of the L frames (17) is respectively connected to a square hole shaft (25) by a bearing, each of the square shafts (11) is respectively arranged in a square hole of a corresponding square hole shaft (25), each of the square hole shafts (25) is respectively connected to a transmission bevel gear (16), each of the screw rods (20) is respectively connected to a power bevel gear (18), and each of the transmission bevel gears (16) is respectively meshed with a corresponding power bevel gear (18).

5. The combustion boiler furnace velocity field measuring device according to claim 1 is characterized in that: At least one of the lifting frames (21) is connected to a distance measuring sensor (24).

6. The combustion boiler furnace velocity field measuring device according to claim 1 is characterized in that: At least one of the guide vertical rods (19) is connected to the limiting plate (23).

7. The combustion boiler furnace velocity field measuring device according to claim 1 is characterized in that: The fixing plate (1) is connected to a symmetrical hanger (26).

8. The combustion boiler furnace velocity field measuring device according to claim 1 is characterized in that: The fixing plate (1) is connected to a symmetrical Y-frame (27), and the symmetrical Y-frame (27) is respectively connected to mounting seats of symmetrical wheels (28).

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