A turbine flow meter monitoring module

Abstract

The application discloses a kind of turbine flowmeter monitoring module, including gas well, gas analyzer, flow monitoring regulating device, gas pipeline, control center and internal combustion generator set;The flow monitoring regulating device includes turbine flowmeter and signal end;The turbine flowmeter includes shell, guide vane, impeller, rotating plate;The fixed component is installed in the guide vane near one end of impeller;The data of the component content of landfill gas collected by gas analyzer is received by control center, according to the received data and the flow rate information of landfill gas in gas pipeline obtained by signal end, control flow monitoring regulating device, adjust the extraction speed of landfill gas, avoid the occurrence of dead well phenomenon;The two ends of impeller are supported by sleeve, and the impeller is axially positioned by the ball, when the impeller is damaged, the rotating plate is opened, and the impeller and the guide vane can be separated by sliding sleeve, which is convenient for maintaining the impeller.

Description

Technical Field

[0001] This invention belongs to the field of electrical control technology, and in particular relates to a turbine flow meter monitoring module. Background Technology

[0002] Currently, the primary method for treating municipal solid waste is landfill. After accumulating in landfills for extended periods, large amounts of landfill gas, primarily methane, are produced. If this landfill gas is not properly treated, it will be released into the atmosphere, polluting the surrounding air. Furthermore, methane is a flammable and explosive gas, posing a safety hazard when released into the atmosphere. Currently, there are two methods for treating landfill gas: first, collecting the gas through collection wells, pre-treating it, and then transporting it to an incineration tower; second, pre-treating the collected gas and then sending it to an internal combustion engine for power generation. The second method converts chemical energy into electrical energy, saving on other energy sources, and is therefore more widely used in the treatment of landfill gas.

[0003] Landfill gas production takes time and has a limited rate. Over-extraction can disrupt the production conditions, leading to "dead wells" where gas can no longer be extracted, thus preventing a stable supply of landfill gas for internal combustion generator sets. To avoid this, conventional methods involve installing horizontal gas collection pipes and vertical gas collection wells in the landfill. Gas sampling devices are installed at the top of each well, and samples are manually taken from each well to analyze the levels of methane, oxygen, and carbon dioxide. The extraction rate is then manually adjusted based on the analysis results. Flow meters are used to monitor the real-time flow of landfill gas. This method requires operators to physically visit the wellheads to collect samples, resulting in low safety, slow operation, and high labor costs. Furthermore, existing turbine flow meters used to detect the airflow in landfills require removing the guide plates at both ends of the turbine and then disassembling the impeller, which is the detection component, during turbine maintenance. This process is complex, time-consuming, and labor-intensive. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a turbine flow meter monitoring module.

[0005] The technical solution provided by this invention includes a gas collection well, a gas analyzer, a flow monitoring and regulation device, a gas transmission pipeline, a control center, and an internal combustion generator set. The gas analyzer and the flow monitoring and regulation device are sequentially installed on the gas transmission pipeline. The internal combustion generator set is connected to the gas collection well via the gas transmission pipeline. The flow monitoring and regulation device includes a turbine flow meter and a signal terminal. The signal terminal is a magnetic sensor fixed to the turbine flow meter and used to transmit information detected by the turbine flow meter to the control center. The gas analyzer is connected to the control center via a signal transmitter. The control center is a computer. The control center receives data on the composition of landfill gas collected by the gas analyzer, and based on the received data and the flow rate information of the landfill gas in the gas transmission pipeline obtained from the signal terminal, controls the flow monitoring and regulation device to adjust the extraction speed of the landfill gas. This achieves automated adjustment of the landfill gas extraction speed, improves extraction efficiency, reduces manual operation, and lowers extraction costs.

[0006] The turbine flow meter includes a housing, two guide plates fixed at both ends inside the housing, an impeller installed between the two guide plates, and a rotating plate rotatably connected to the middle of the housing. The signal terminal is inserted inside the housing and faces the impeller. A fixing component is installed on one end of the guide plate near the impeller. The fixing component includes a slider slidably connected to the guide plate, a ball rotatably connected to the end of the slider, a spring fixed between the slider and the guide plate, and a sleeve sleeved on the end of the guide plate and fixedly connected to the slider. One end of the sleeve is sleeved on the impeller. A ball groove is provided at each end of the impeller. The ball is inserted into the ball groove.

[0007] The guide plate is used to stabilize the airflow entering the housing, and its principle is the same as that of existing technology. During the use of the turbine flow meter, the sleeve is fitted between the guide plate and the impeller to support the impeller and prevent the airflow from contacting the ball, thus reducing the service life of the ball. The ball is used to limit the axial movement of the impeller and make it rotate stably under the impact of the airflow. When the impeller needs maintenance, simply open the rotating plate, push the sleeve to disengage it from the impeller, the slider moves accordingly, the spring contracts, the ball separates from the ball groove, and then the impeller can be removed from the housing, which reduces the difficulty of turbine flow meter maintenance and facilitates operation.

[0008] Furthermore, the impeller has slots at both ends; a ring block is slidably connected in the slot; a locking block is slidably connected to one end of the guide plate near the impeller; a first elastic sheet is fixed between the locking block and the guide plate; a square groove is provided on the locking block; a wedge-shaped strip is slidably connected to the end of the guide plate; one end of the wedge-shaped strip is inserted into the square groove, and the other end of the wedge-shaped strip extends out of the guide plate and can abut against the ring block; a first slot and a second slot are sequentially provided along the axial direction on the sleeve; the locking block can be embedded in the first slot and the second slot.

[0009] When the turbine flow meter is in normal use, the locking block is pushed into the second slot by the first elastic plate, restricting the sliding of the sleeve and ensuring a stable connection between the impeller and the guide plate. When disassembling the impeller, the ring block is pushed to abut against the wedge strip, and the wedge strip is pushed into the square groove, which drives the locking block to disengage from the second slot. Then, the sleeve can be slid to disengage from the impeller. After the sleeve is disengaged from the impeller, the first elastic plate drives the locking block to re-enter the first slot, restricting the spring's return and thus fixing the sleeve's position, preventing the sleeve from returning to its original position, and facilitating the removal of the impeller. During this process, the square groove pushes the wedge strip so that one end extends out of the guide plate. When installing the impeller, the impeller is made to contact the wedge strip and insert into the square groove. The locking block then disengages from the first slot, and the spring drives the sleeve and slider to return to their original positions, thus completing the installation of the impeller. The operation is simple and practical.

[0010] Furthermore, the surface of the sphere is provided with multiple interconnected oil grooves; one end of the sphere is provided with a column rod; the grooves are provided with column holes; the column rod is inserted into the column holes; by providing oil grooves, after the impeller is removed, lubricating oil is injected into the oil grooves, so that when the impeller is used normally, the lubricating oil lubricates the sphere, extends its service life, and reduces the resistance when the impeller rotates; through the cooperation between the column rod and the column hole, when the impeller is installed, after one of the sleeves is fitted onto the impeller, during the process of sliding the impeller to contact the wedge rod on the other guide plate, the column hole on the sleeve that has been connected slides relative to the column rod on the guide plate, preventing the impeller from detaching from the guide plate, so that the impeller can be connected to the two guide plates one after the other, which is convenient for installation.

[0011] Furthermore, the inner side of the rotating plate is symmetrically provided with two sliding grooves; the bottom end of the sliding groove is provided with a guide surface; a support rod is slidably connected in the sliding groove; a support block is provided at the bottom end of the support rod; the top ends of the two support rods are hinged to the rotating rod; the outer sides of the two sliding grooves are connected by a limiting groove; a helical toothed ring is slidably connected in the limiting groove; a second elastic plate is fixed between the helical toothed ring and the limiting groove; the middle part of the rotating rod passes through the limiting groove and is provided with a helical toothed block; the helical toothed block and the helical toothed ring are interlocked.

[0012] After the rotating plate is turned on, the support rod is pushed to slide along the slide groove. The guide surface is set so that its bottom end flips upward, so that the two support blocks support the two ends of the impeller respectively. At the same time, the rotating rod slides along the limiting groove. The elasticity of the second elastic plate makes the helical tooth ring and the helical tooth rack engage, preventing the support rod from resetting. This allows the support blocks to support the impeller after it is separated from the guide plate, preventing the impeller from falling into the housing and causing damage, and making it easy to remove the impeller from the housing.

[0013] Furthermore, a stop block is slidably connected within the limiting groove; the stop block is fixedly connected to the helical toothed ring; a screw is rotatably connected to the end of the stop block; one end of the screw extends out of the limiting groove and is provided with a threaded section; an anti-rotation block is slidably connected to the outside of the rotating plate; a third elastic sheet is fixed between the anti-rotation block and the rotating plate; an anti-rotation groove is provided on the surface of the outer shell; the anti-rotation block can be inserted into the anti-rotation groove; an L-shaped rod is slidably connected within the anti-rotation groove.

[0014] When the rotating plate is opened, the third elastic plate pushes the anti-rotation block into the anti-rotation groove, restricting the rotation of the rotating plate and preventing the impeller from falling into the housing when the support block supports the impeller. Pushing the L-shaped rod to contact the anti-rotation block can push the anti-rotation block out of the anti-rotation groove to close and fix the rotating plate again. The stop block is made of rubber and can deform under pressure. Pulling the screw can make the stop block pull the helical tooth ring to slide so as to reset the support rod. After the support rod is reset, pressing and rotating the screw can make the threaded part form a threaded connection with the rotating plate, restricting the sliding of the helical tooth block and preventing the support rod from extending out of the slide groove during normal use of the turbine flow meter, which would affect the normal operation of the impeller.

[0015] In summary, this invention receives data on the composition of landfill gas collected by a gas analyzer at the control center. Based on the received data and the flow rate information of the landfill gas in the gas pipeline obtained from the signal terminal, the flow monitoring and adjustment device is controlled to adjust the extraction speed of the landfill gas, avoiding dead wells and improving extraction efficiency. At the same time, it reduces manual operation and lowers extraction costs. The impeller is supported at both ends by a sleeve, and the impeller is axially positioned by a ball. When the impeller is damaged, the impeller can be separated from the guide plate by sliding the sleeve after the rotating plate is opened, which facilitates impeller maintenance, reduces the intensity of manual operation, and further reduces the cost of use. Attached Figure Description

[0016] Figure 1 This is a top view of the turbine flow meter in this invention.

[0017] Figure 2 for Figure 1 Isometric sectional view along line AA.

[0018] Figure 3 for Figure 2 A magnified view of part D in the middle.

[0019] Figure 4 for Figure 1 Isometric sectional view along line BB.

[0020] Figure 5 for Figure 1 Isometric sectional view along line CC.

[0021] Figure 6 for Figure 5A magnified view of part E in the middle.

[0022] Figure 7 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1-6 As shown, the system includes a gas collection well, a gas analyzer, a flow monitoring and regulation device, a gas transmission pipeline, a control center, and an internal combustion generator set. The bottom of the gas collection well extends into the landfill area, and the collected landfill gas is transported to the internal combustion generator set for combustion and power generation through the gas transmission pipeline. The gas analyzer and the flow monitoring and regulation device are sequentially installed on the gas transmission pipeline. The internal combustion generator set is connected to the gas collection well through the gas transmission pipeline. The flow monitoring and regulation device includes a turbine flow meter 1 and a signal terminal 2. The signal terminal 2 is a magnetic sensor, fixed on the turbine flow meter, used to transmit the information detected by the turbine flow meter to the control center. The gas analyzer is connected to the control center via a signal transmitter. The gas analyzer is commercially available, and the control center is a computer. The control center receives data on the content of various components of the landfill gas collected by the gas analyzer, and obtains the flow rate information of the landfill gas in the gas transmission pipeline based on the received data and the signal terminal, thereby controlling the flow monitoring and regulation device to adjust the extraction speed of the landfill gas.

[0025] The turbine flow meter 1 includes a housing 3, two guide plates 4 fixed at both ends inside the housing 3, an impeller 5 installed between the two guide plates 4, and a rotating plate 6 rotatably connected to the middle of the housing 3. The top of the rotating plate 6 is fixed to the housing 3 by a threaded connection and is sealed to the housing 3. The signal terminal 2 is inserted inside the housing 3 and faces the impeller 5. The principle of using a magnetic sensor to cooperate with the impeller 5 to measure the airflow velocity and flow rate is existing technology and will not be described in detail here. A fixing component 7 is installed on one end of the guide plate 4 near the impeller 5. The fixing component 7 includes a slider 71 slidably connected to the guide plate 4, a ball 72 rotatably connected to the end of the slider 71, a spring 73 fixed between the slider 71 and the guide plate 4, and a sleeve 74 sleeved on the end of the guide plate 4 and fixedly connected to the slider 71. One end of the sleeve 74 is sleeved on the impeller 5. A ball groove 51 is provided at each end of the impeller 5. The ball 72 is inserted into the ball groove 51.

[0026] Furthermore, slots 52 are provided at both ends of the impeller 5; a ring block 53 is slidably connected in the slot 52; a locking block 41 is slidably connected to one end of the guide plate 4 near the impeller 5; a first elastic piece 42 is fixed between the locking block 41 and the guide plate 4; a square groove 43 is provided on the locking block 41; a wedge strip 44 is slidably connected to the end of the guide plate 4; one end of the wedge strip 44 is inserted into the square groove 43, and the other end of the wedge strip 44 extends out of the guide plate 4 and can abut against the ring block 53; a first slot 74152 and a second slot 74252 are sequentially provided on the sleeve 74 along the axial direction; the locking block 41 can be embedded in the first slot 74152 and the second slot 74252.

[0027] Furthermore, the surface of the sphere 72 is provided with a plurality of interconnected oil grooves 721, and lubricating oil is injected into the oil grooves 721 to lubricate the contact parts of the impeller 5, the sphere 72 and the guide plate 4 during the rotation of the sphere 72 with the impeller 5; a column rod 722 is provided at one end of the sphere 72; a column hole 54 is provided in the sphere groove 51; the column rod 722 is rotatably connected in the column hole 54 and can slide along the column hole 54.

[0028] Furthermore, two symmetrical sliding grooves 61 are provided on the inner side of the rotating plate 6; a guide surface 611 is provided at the bottom of the sliding groove 61; a support rod 612 is slidably connected in the sliding groove 61; a support block 613 is provided at the bottom of the support rod 612; the tops of the two support rods 612 are hinged to the rotating rod 62; the outer sides of the two sliding grooves 61 are connected through a limiting groove 63; a helical toothed ring 631 is slidably connected in the limiting groove 63; a second elastic piece 632 is fixed between the helical toothed ring 631 and the limiting groove 63; the middle part of the rotating rod 62 passes through the limiting groove 63 and is provided with a helical toothed block 64; the helical toothed block 64 and the helical toothed ring 631 are interlocked.

[0029] Furthermore, a stop block 633 is slidably connected within the limiting groove 63; the stop block 633 is fixedly connected to the helical tooth ring 631; a screw 634 is rotatably connected to the end of the stop block 633; ​​one end of the screw 634 extends out of the limiting groove 63 and is provided with a threaded section 635; an anti-rotation block 65 is slidably connected to the outside of the rotating plate 6; a third elastic sheet 66 is fixed between the anti-rotation block 65 and the rotating plate 6; an anti-rotation groove 31 is provided on the surface of the outer shell 3; one end of the anti-rotation block 65 can be inserted into the anti-rotation groove 31; an L-shaped rod 32 is slidably connected within the anti-rotation groove 31, and one end of the L-shaped rod 32 can contact the end of the anti-rotation block 65 inserted into the anti-rotation groove 31.

[0030] Preferably, the first elastic sheet 42, the second elastic sheet 632 and the third elastic sheet 66 are all commercially available elastic metal parts that are elastic and resistant to corrosion.

[0031] The preferred embodiments of the present invention have been described above, but should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A turbine flow meter monitoring module, characterized in that, It includes a flow monitoring and regulation device; the flow monitoring and regulation device includes a turbine flow meter (1) and a signal terminal (2); the signal terminal (2) is a magnetic sensor, which is fixed on the turbine flow meter; The turbine flow meter (1) includes a housing (3), two guide plates (4) fixed inside the housing (3) at both ends, an impeller (5) installed between the two guide plates (4), and a rotating plate (6) rotatably connected to the middle of the housing (3); the signal end (2) is inserted inside the housing (3) and faces the impeller (5); a fixing component (7) is installed on one end of the guide plate (4) near the impeller (5); the fixing component (7) includes a slider (71) slidably connected to the guide plate (4), a ball (72) rotatably connected to the end of the slider (71), a spring (73) fixed between the slider (71) and the guide plate (4), and a sleeve (74) sleeved on the end of the guide plate (4) and fixedly connected to the slider (71); one end of the sleeve (74) is sleeved on the impeller (5); a ball groove (51) is provided at each end of the impeller (5); the ball (72) is inserted into the ball groove (51); The rotating plate (6) has two symmetrical sliding grooves (61) on its inner side; the bottom end of the sliding groove (61) has a guide surface (611); a support rod (612) is slidably connected in the sliding groove (61); a support block (613) is provided at the bottom end of the support rod (612); the top ends of the two support rods (612) are hinged to the rotating rod (62); the outer sides of the two sliding grooves (61) are connected through a limiting groove (63); a helical tooth ring (631) is slidably connected in the limiting groove (63); a second elastic piece (632) is fixed between the helical tooth ring (631) and the limiting groove (63); the middle part of the rotating rod (62) passes through the limiting groove (63) and is provided with a helical tooth block (64); the helical tooth block (64) and the helical tooth ring (631) are interlocked. After the rotating plate (6) is turned on, the support rod (612) is pushed to slide along the slide groove (61). The guide surface (611) is set so that its bottom end flips upward, so that the two support blocks (613) are respectively supported at both ends of the impeller (5). At the same time, the rotating rod (62) slides along the limiting groove (61). The elastic force of the second elastic plate (632) causes the helical tooth ring (631) to engage with the helical tooth block (64), preventing the support rod (612) from resetting, so that the impeller (5) can be supported by the support block (613) after the impeller (5) is separated from the guide plate (4).

2. The turbine flow meter monitoring module according to claim 1, characterized in that, The system includes a gas collection well, a gas analyzer, a gas transmission pipeline, a control center, and an internal combustion generator set. The gas analyzer and the flow monitoring and regulation device are sequentially installed on the gas transmission pipeline. The internal combustion generator set is connected to the gas collection well through the gas transmission pipeline. The signal terminal (2) is used to transmit the information detected by the turbine flow meter (1) to the control center. The gas analyzer is connected to the control center via a signal transmitter. The control center is an electronic computer. The control center receives data on the content of each component of the landfill gas collected by the gas analyzer, and obtains the flow rate and velocity information of the landfill gas in the gas transmission pipeline based on the received data and the signal terminal. The flow monitoring and regulation device is then used to adjust the extraction speed of the landfill gas.

3. The turbine flow meter monitoring module according to claim 1, characterized in that: The impeller (5) has slots (52) at both ends; a ring block (53) is slidably connected in the slot (52); a block (41) is slidably connected to one end of the guide plate (4) near the impeller (5); a first elastic sheet (42) is fixed between the block (41) and the guide plate (4); a square groove (43) is provided on the block (41); a wedge strip (44) is slidably connected to the end of the guide plate (4); one end of the wedge strip (44) is inserted into the square groove (43), and the other end of the wedge strip (44) extends out of the guide plate (4) and can abut against the ring block (53); a first slot (741)(52) and a second slot (742)(52) are arranged sequentially along the axial direction on the sleeve (74); the block (41) can be embedded in the first slot (741)(52) and the second slot (742)(52).

4. The turbine flow meter monitoring module according to claim 1, characterized in that: The surface of the sphere (72) is provided with a plurality of interconnected oil grooves (721); one end of the sphere (72) is provided with a column rod (722); the groove (51) is provided with a column hole (54); the column rod (722) is inserted into the column hole (54).

5. A turbine flow meter monitoring module according to claim 4, characterized in that: A stop block (633) is slidably connected in the limiting groove (63); the stop block (633) is fixedly connected to the helical tooth ring (631); a screw (634) is rotatably connected to the end of the stop block (633); one end of the screw (634) extends out of the limiting groove (63) and is provided with a threaded section (635); an anti-rotation block (65) is slidably connected to the outside of the rotating plate (6); a third elastic sheet (66) is fixed between the anti-rotation block (65) and the rotating plate (6); an anti-rotation groove (31) is provided on the surface of the outer shell (3); the anti-rotation block (65) can be inserted into the anti-rotation groove (31); an L-shaped rod (32) is slidably connected in the anti-rotation groove (31).

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