CN114812704A - Intelligent gas turbine flowmeter - Google Patents
Intelligent gas turbine flowmeter Download PDFInfo
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- CN114812704A CN114812704A CN202210316201.7A CN202210316201A CN114812704A CN 114812704 A CN114812704 A CN 114812704A CN 202210316201 A CN202210316201 A CN 202210316201A CN 114812704 A CN114812704 A CN 114812704A
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- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000011664 signaling Effects 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 23
- 210000004907 gland Anatomy 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 63
- 239000007789 gas Substances 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides an intelligent gas turbine flowmeter, which comprises a pipe shell, a rectifier, a turbine shaft, a machine core seat, a rear flow guide body, a flow volume corrector and a flow sensor, wherein the pipe shell is provided with a plurality of through holes; the turbine shaft is in running fit with the machine core through a bearing, bearing pressing covers are arranged outside the bearings at the front end and the rear end of the machine core seat, an outer ring of the bearing is pressed on the machine core seat through the bearing pressing covers, a turbine and a bearing sealing cover are fixedly arranged at the front end of the turbine shaft from front to back, a locking nut is arranged at the foremost end of the turbine shaft, the turbine and the bearing sealing cover are pressed on an inner ring of the front end bearing through the front end locking nut, a machine core seat sealing cover is arranged at the rear end of the machine core seat, the machine core seat sealing cover is fixedly arranged on the machine core seat through a screw, the bearing pressing cover at the rear end bearing is pressed on the machine core seat through the machine core seat sealing cover, a signaling disc is arranged at the rear end of the turbine shaft, a locking nut is arranged at the rearmost end of the turbine shaft, and the signaling disc is pressed on an inner ring of the rear end bearing through the rear end locking nut. The invention is used for detecting the gas flow.
Description
Technical Field
The invention belongs to the technical field of gas flowmeters, and particularly relates to an intelligent gas turbine flowmeter.
Background
The measurement principle of the turbine gas flowmeter is as follows: the kinetic energy of the gas flow to be detected is converted into a rotational movement of the turbine by means of a turbine arranged in the flow path of the gas to be detected, wherein the rotational speed of the turbine is ideally proportional to the gas flow to be detected or the gas volume to be detected.
The rotational speed of the turbine is usually detected by means of corresponding sensor technology. To this end, the turbine is provided with sensors in the radial direction, in such a way that: when the blades of the turbine pass by, pulses are generated which are transmitted to an associated electronic state variable converter. The output shaft of the turbine shaft drives a mechanical meter. The state quantity converter mentioned above is generally connected in series before or after the metering device, and the metering result is corrected by corresponding calibration data.
The bearing pair for mounting the turbine shaft in the prior art has the following problems: 1. the vibration is large and the vibration is easy to damage; 2. dust is easily introduced, and durability and reliability are poor.
Disclosure of Invention
The invention aims to solve the technical problems and provides an intelligent gas turbine flowmeter.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent gas turbine flowmeter comprises a pipe shell, a rectifier, a turbine shaft, a machine core seat, a rear flow guide body, a flow volume corrector and a flow sensor; a cylindrical gas channel which is communicated from front to back is arranged in the tube shell, and the rear flow deflector, the core seat and the rectifier are fixedly arranged in the tube shell from back to front in sequence; the rectifier is fixedly arranged at the front end of the tube shell and comprises a rectifying plate, a front guide shell and a front guide core body, the rectifying plate is in a circular plate shape, a plurality of gas through holes are uniformly formed in the rectifying plate, the front guide shell is in a cylindrical shape, the outer wall of the front guide shell is matched with the inner wall of the tube shell, and the front end of the front guide core body is fixedly connected with the rectifying plate through a bolt; the machine core is fixedly arranged in the machine core seat, a turbine shaft hole for mounting a turbine shaft is arranged in the middle of the machine core, bearings are arranged at the front end and the rear end of the turbine shaft hole, the turbine shaft is in running fit with the machine core through the bearings, a shaft shoulder for positioning the bearings is arranged on the turbine shaft, bearing glands are arranged outside the bearings at the front end and the rear end of the machine core seat, the outer ring of each bearing is pressed on the machine core seat through the bearing glands, a turbine and a bearing sealing cover are sequentially and fixedly arranged at the front end of the turbine shaft from front to back, a locking nut is arranged at the foremost end of the turbine shaft, the turbine and the bearing sealing cover are pressed on the inner ring of the front end bearing through the front end locking nut, a machine core seat sealing cover is arranged at the rear end of the machine core seat, the machine core seat sealing cover is fixedly arranged on the machine core seat through screws, and the machine core seat sealing cover presses the bearing at the rear end of the bearing on the machine core seat, a signaling disc is arranged at the rear end of the turbine shaft, a magnetic column is fixedly mounted on the signaling disc and rotates along the circumferential direction of the signaling disc, a locking nut is arranged at the rearmost end of the turbine shaft, and the signaling disc is pressed on an inner ring of a rear-end bearing by the rear-end locking nut; a cylindrical pin for limiting the relative rotation of the rear flow guiding body and the movement seat is arranged between the rear flow guiding body and the movement seat, and a gas flow passage communicated with the gas passage at the periphery of the front flow guiding body is arranged on the movement seat and the rear flow guiding body; the shell is provided with a flow sensor mounting hole perpendicular to the gas channel, the flow sensor is fixedly mounted at the flow sensor mounting hole, a magnet is arranged in the flow sensor and is arranged at the periphery close to the signaling disc, and the flow sensor is connected with the flow volume corrector.
As a preferred technical scheme, the front flow guiding core body is integrally arranged, the front part of the front flow guiding core body is in a spherical shell shape, the rear part of the front flow guiding core body is in a cylindrical shape, and a circle of flow guiding fins are uniformly arranged on the periphery of the rear part of the front flow guiding core body.
As a preferable technical solution, the rear portion of the rear baffle is spherical shell-shaped.
As a preferred technical scheme, the tube shell is provided with a step in the flow sensor mounting hole, the flow sensor mounting hole is provided with a flow sensor gland, the flow sensor gland is in threaded connection with the tube shell, and the flow sensor gland presses the flow sensor on the step in the flow sensor mounting hole.
As a preferable technical solution, the intelligent gas turbine flowmeter further comprises a temperature sensor, the temperature sensor is fixedly mounted on the pipe shell, the temperature sensor is communicated with the gas passage, and the temperature sensor is connected with the flow volume corrector.
As a preferred technical scheme, a core print oil duct is arranged in the core print, the core print oil duct is communicated with a lubricating space surrounded by a turbine shaft, a core and bearings at two ends, a rear guide body oil duct is arranged on the rear guide body, an end face oil pipe for connecting the core print oil duct and the rear guide body oil duct is arranged between the core print and the rear guide body, an oil filling hole perpendicular to the gas passage is arranged on the tube shell, an oil cup piece is connected at the oil filling hole of the tube shell, the oil cup piece is provided with an oil filling port and an oil outlet, an oil filling passage for communicating the oil filling port and the oil outlet is arranged in the oil cup piece, and an oil filling pipe for connecting the rear guide body oil duct and the oil outlet is arranged between the rear guide body and the oil cup piece.
As a preferred technical scheme, the oil filling pipe is of a rigid structure, and two ends of the oil filling pipe respectively extend into the rear guide fluid oil passage and the oil outlet.
The working principle of the intelligent gas turbine flowmeter is as follows: when the fluid flows into the flowmeter, the fluid is rectified and accelerated under the action of the air inlet rectifier, and the turbine generates a rotation torque because the turbine blades form a certain angle with the flow direction of the fluid, and the turbine starts to rotate after the friction torque and the fluid resistance torque are overcome. Over a range of flow rates, the angular velocity of turbine rotation is directly proportional to the fluid volumetric flow rate. According to the electromagnetic induction principle, a pulse signal which is in direct proportion to the volume flow of the fluid is induced from a coaxial rotating signal wheel by using a magnetic sensing module, the signal enters a micro-processing unit of a flow volume corrector together with signals of a temperature and pressure sensing module after being amplified, filtered and shaped to carry out operation processing, and the volume flow and the total amount of the gas are directly displayed on an LCD screen.
After the technical scheme is adopted, the invention has the following advantages:
according to the intelligent gas turbine flowmeter, the inner ring of the bearing at the front end of the turbine shaft is fixed on the turbine shaft through the shaft shoulder and the bearing sealing cover, the inner ring of the bearing at the rear end of the turbine shaft is fixed on the turbine shaft through the shaft shoulder and the signaling disc, and when the turbine shaft moves back and forth, the inner rings of the bearings at the front end and the rear end of the turbine shaft move along with the turbine shaft. When the turbine shaft moves forwards, the bearing gland of the front end bearing limits the movement of the outer ring of the front end bearing, so that the front end bearing is fixed, and the turbine shaft is limited to move due to the reverse thrust action of the front end bearing; when the turbine shaft moves backwards, the bearing gland of the rear end bearing limits the movement of the outer ring of the rear end bearing, so that the rear end bearing is fixed, and the turbine shaft is limited to move due to the reverse thrust action of the rear end bearing. Therefore, the intelligent gas turbine flowmeter can limit and reduce the vibration of the turbine shaft and prolong the service life of the bearing.
According to the intelligent gas turbine flowmeter, the bearing glands at the front end and the rear end are arranged, the thrust reversal effect of the bearing is combined, the outer ring and the inner ring of the bearing are tightly matched, dust can be prevented from entering a bearing gap, and the durability and the reliability of the flowmeter are improved.
The intelligent gas turbine flowmeter is provided with the oil filling structure, and lubricating oil enters from the oil filling port of the oil cup piece and sequentially passes through the oil filling channel, the oil filling pipe, the rear guide body oil duct, the end face oil duct and the core seat oil duct to enter the lubricating space so as to play a role in lubricating a bearing. And, combine the thrust reversal effect of bearing, bearing inner race and inner circle cooperation are inseparable, can prevent that lubricating oil from leaking.
Drawings
FIG. 1 is a schematic diagram of an intelligent gas turbine flow meter;
FIG. 2 is a cross-sectional view of an intelligent gas turbine flow meter, taken in the direction of FIG. 1E;
FIG. 3 is a cross-sectional view of an intelligent gas turbine flow meter, taken in the direction of FIG. 2F;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
in the figure:
1-flow volume correction instrument; 2-oil cup pieces; 3-a pipe shell; 4-a movement; 5-a movement seat; 6-a turbine; a 7-turbine shaft; 8-bearing cover sealing; 9-bearing gland; 10-a machine core seat sealing cover; 11-a message disk; 12-a signaling tray body; 14-rear flow conductor; 16-a flow sensor; 18-a flow sensor gland; 19-a rectifying plate; 20-a front flow-leading housing; 21-a front flow guiding core; 26-a filler tube; 27-face tubing; 30-a bearing; 42-cylindrical pin; 49-magnetic column; 67-temperature sensor.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples.
As shown in fig. 1 to 4, an intelligent gas turbine flowmeter includes a pipe shell 3, a rectifier, a turbine 6, a turbine shaft 7, a movement 4, a movement base 5, a rear baffle 14, a flow volume corrector 1, a flow sensor 16, and a temperature sensor 67.
A cylindrical gas channel which is through from front to back is arranged in the tube shell 3. The gas passage has a larger diameter at a front portion than at a rear portion to form a front component mounting portion. The rear baffle 14, the movement seat 5 and the rectifier are sequentially arranged in the component mounting part of the tube shell 3 from the back to the front.
The rectifier is fixedly arranged at the front end of the tube shell 3. The rectifier comprises a rectifying plate 19, a front-flow guiding shell 20 and a front-flow guiding core body 21. The rectifying plate 19 is in a circular plate shape, a plurality of gas through holes are uniformly formed in the rectifying plate 19, and the rectifying plate 19 is fixedly connected with the tube shell 3 through screws, so that the rectifier, the core seat 5 and the rear guide body 14 are fixedly pressed in the tube shell 3 through the rectifying plate 19. The front flow guide shell 20 is cylindrical, the outer wall of the front flow guide shell 20 is matched with the inner wall of the tube shell 3, and the front end and the rear end of the front flow guide shell 3 are respectively abutted to the rectifying plate 19 and the movement seat 5. Preceding water conservancy diversion core 21 an organic whole sets up, preceding water conservancy diversion core 21's front portion is the spherical shell form, preceding water conservancy diversion core 21's front end pass through the bolt with cowling panel 19 fixed connection, preceding water conservancy diversion core 21's rear portion is cylindricly, preceding water conservancy diversion core 21's rear portion evenly is equipped with round water conservancy diversion fin in the periphery.
The flow volume corrector 1 is made of the product of Shanghai Gongzun instrument, Inc., and the model thereof can be UE1600, UE2000T, etc. The flow volume corrector 1 comprises a temperature and pressure detection analog channel, a flow detection digital channel, a micro-processing unit, a liquid crystal driving circuit and other auxiliary circuits, and is provided with an output signal interface.
The corrector calculates the accumulated operating condition quantity (V) by obtaining the number of gas flow pulses (N) and the base table constant (kp) from a low-frequency or high-frequency sensor in the base table. Then the multipath signals sent from each sensor are processed and then calculated by the microprocessor according to a gaseous equation formula, and the working condition cumulant is converted into standard condition cumulant, so that on-site display and remote transmission of various signals are realized.
The gas equation can be written as:
Vb=V×P/Pb×Tb/T×Z/Zb；
in the formula:
vb-volume under Standard (m 3);
v-volume in working condition (m 3);
t-absolute temperature (K) of the gas to be measured;
p is the absolute pressure (kPa) of the pressure detection point;
Pb-Standard atmospheric pressure kPa);
Tb-Absolute temperature in Standard State (K);
z is the gas compression coefficient under the working state;
zb-gas compressibility in the standard state.
In the event of a sensor error, a deviation of the value from the operating range, or a corrector error condition, the corrector has counters for the error condition accumulation (Vs) and error standard condition accumulation (Vbs) to maintain the accumulation under the error condition, the counters being interconnected with associated normal counters.
The pressure loss of the turbine meter depends on the energy required to drive the turbine, losses due to internal channel resistance, and changes in flow speed and flow direction. The turbine flowmeter measures the maximum pressure loss at calibration (medium is air, density ρ =1.205kg/m 3), and the pressure loss under different working conditions can be obtained by the following formula for other gases:
in the formula:
Δ P-pressure loss in working condition, kPa;
Δ Pmax — pressure loss, kPa, of air at maximum operating condition flow under standard conditions;
ρ b-density of the medium in the standard state (20 ℃, 101.325 kPa), kg/m 3;
Pb-Standard atmospheric pressure, 101.325 kPa;
tb-absolute temperature of medium in standard state 293.15K;
p — absolute pressure of the medium in the operating state (i.e. pressure value P = Pa + Pg displayed by the flow meter), kPa;
pa-local atmospheric pressure, kPa at the time of detection;
pg-pressure value (gauge pressure) measured with a pressure gauge, kPa;
t is the absolute temperature of the medium in the working state (273.15 + T), K;
t is the temperature value, DEG C, displayed by the flowmeter;
zg-gas compression factor in working condition;
zb-gas compression factor in standard state;
q is the actual flow rate in the working state, m 3/h;
qmax-maximum operating flow of the flowmeter, m 3/h.
The machine core 4 is fixedly arranged in the machine core seat 5, and a turbine shaft hole for mounting a turbine shaft 7 is formed in the middle of the machine core 4. Bearings 30 are mounted at the front end and the rear end of the shaft hole of the turbine shaft, the turbine shaft 7 is in running fit with the movement 4 through the bearings 30, and shaft shoulders for positioning the bearings 30 are arranged on the turbine shaft 7. Bearing glands 9 are arranged outside the bearings 30 at the front end and the rear end of the movement seat 5, and the outer rings of the bearings 30 are pressed on the movement seat 5 through the bearing glands 9. The front end of the turbine shaft 7 is fixedly provided with a signaling disc body 12, a turbine 6 and a bearing sealing cover 8 in sequence from front to back. The foremost end of the turbine shaft 7 is provided with a lock nut, and the front lock nut presses the signaling disc body 12, the turbine 6 and the bearing sealing cover 8 on the inner ring of the front bearing 30. The rear end of the machine core seat 5 is provided with a machine core seat sealing cover 10, the machine core seat sealing cover 10 is fixedly installed on the machine core seat 5 through screws, and the machine core seat 5 sealing cover presses a bearing pressing cover 9 at a rear end bearing 30 on the machine core seat 5. The rear end of the turbine shaft 7 is provided with a signaling disc 11, a magnetic column 49 is fixedly installed on the signaling disc 11, and the magnetic column 49 rotates along the circumferential direction of the signaling disc 11. And a locking nut is arranged at the rearmost end of the turbine shaft 7, and the rear locking nut presses the signaling disc 11 on the inner ring of the rear bearing 30.
A cylindrical pin 42 for limiting the relative rotation of the rear guide body 14 and the movement seat 5 is arranged between the two. The rear part of the rear flow guiding body 14 is in a spherical shell shape, and the movement seat 5 and the rear flow guiding body 14 are provided with gas flow channels communicated with the gas channel at the periphery of the front flow guiding core body 21.
The gas pipeline is characterized in that a flow sensor mounting hole perpendicular to the gas channel is formed in the tube shell 3, and a step is formed in the flow sensor mounting hole of the tube shell 3. A flow sensor gland 18 is arranged at the position of the flow sensor mounting hole, the flow sensor gland 18 is in threaded connection with the pipe shell 3, and the flow sensor 16 is pressed on a step in the flow sensor mounting hole by the flow sensor gland 18. A magnet is provided in the flow sensor 16, and the magnet is provided near the outer periphery of the message disk 11. The specific working principle of the signaling disk 11 can refer to the patent application of "electric tool holder high-voltage signaling disk" with the publication number of CN 214557501U.
The flow sensor 16 is conventional and will not be described in detail herein. The flow sensor 16 includes a magnetic sensing module and a pressure sensing module. The magnetic sensing module measures the flow of the fluid in the closed pipeline by using the turbine 6, the magnetic attraction pressure of the magnet and the magnetic column 49 on the transmission disc 11 changes along with the rotation of the transmission disc 11, and the rotating speed of the rotor of the magnetic column 19 which is in direct proportion to the flow is detected. The pressure sensing module takes a PT1000 platinum resistor as a temperature sensitive element, and the resistance value of the pressure sensing module corresponds to the temperature within a certain temperature range. The pressure sensing module takes a piezoresistive diffused silicon bridge circuit as a sensitive element, and the resistance of the bridge circuit can be expected to change under the action of external pressure, so that the potential difference of two output ends of the pressure sensing module is in direct proportion to the external pressure under the action of a certain excitation current.
The flow sensor 16 is connected to the flow volume corrector 1. The temperature sensor 67 is fixedly arranged on the pipe shell 3, the temperature sensor 67 is communicated with the gas channel, and the temperature sensor 67 is connected with the flow volume corrector 1 and used for measuring the gas temperature.
The present embodiment also provides an oiling structure for lubrication oiling of the bearing 30. The refueling structure is as follows: a movement seat oil duct is arranged in the movement seat 5 and is communicated with a lubricating space surrounded by the turbine shaft 7, the movement 4 and bearings at two ends. A rear baffle oil duct is arranged on the rear baffle 14, and an end oil pipe 27 for connecting the core print oil duct and the rear baffle oil duct is arranged between the core print 5 and the rear baffle 14. The pipe shell 3 is provided with an oil filling hole perpendicular to the gas channel, and an oil cup piece 2 is in threaded connection with the oil filling hole of the pipe shell 3. The oil cup piece 2 is provided with an oil filling port and an oil outlet, and an oil filling channel communicated with the oil filling port and the oil outlet is arranged in the oil cup piece 2. An oil filling pipe 26 for connecting the oil passage of the rear guide body and the oil outlet is arranged between the rear guide body 14 and the oil cup piece 2. The lubricating oil enters from the oil filling port of the oil cup piece 2 and sequentially passes through the oil filling channel, the oil filling pipe 26, the rear guide body oil duct, the end surface oil pipe 27 and the movement seat oil duct to enter the lubricating space.
Preferably, the oil filling pipe 26 is a rigid structure, and two ends of the oil filling pipe 26 respectively extend into the rear guide fluid oil passage and the oil outlet, so as to perform a circumferential limiting function on the rear guide fluid 14.
The working principle of the intelligent gas turbine flowmeter is as follows: when the fluid flows into the flowmeter, the fluid is rectified and accelerated under the action of the air inlet rectifier, the blades of the turbine 6 form a certain angle with the flow direction of the fluid, the turbine 6 generates a rotation torque at the moment, and after the friction torque and the fluid resistance torque are overcome, the turbine 6 starts to rotate. Over a range of flow rates, the angular velocity at which the turbine 6 rotates is proportional to the fluid volumetric flow rate. According to the electromagnetic induction principle, a pulse signal which is in direct proportion to the volume flow of the fluid is induced from a coaxial rotating signal wheel by using a magnetic sensing module, the signal enters a micro-processing unit of the flow volume corrector 1 together with signals of a temperature and pressure sensing module after being amplified, filtered and shaped for operation processing, and the volume flow and the total amount of the gas are directly displayed on an LCD screen.
Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.
Claims (7)
1. An intelligent gas turbine flowmeter is characterized by comprising a pipe shell, a rectifier, a turbine shaft, a machine core seat, a rear flow guide body, a flow volume corrector and a flow sensor; a cylindrical gas channel which is communicated from front to back is arranged in the tube shell, and the rear flow deflector, the core seat and the rectifier are fixedly arranged in the tube shell from back to front in sequence; the rectifier is fixedly arranged at the front end of the tube shell and comprises a rectifying plate, a front guide shell and a front guide core body, the rectifying plate is in a circular plate shape, a plurality of gas through holes are uniformly formed in the rectifying plate, the front guide shell is in a cylindrical shape, the outer wall of the front guide shell is matched with the inner wall of the tube shell, and the front end of the front guide core body is fixedly connected with the rectifying plate through bolts; the machine core is fixedly arranged in the machine core seat, a turbine shaft hole for mounting a turbine shaft is arranged in the middle of the machine core, bearings are arranged at the front end and the rear end of the turbine shaft hole, the turbine shaft is in running fit with the machine core through the bearings, a shaft shoulder for positioning the bearings is arranged on the turbine shaft, bearing glands are arranged outside the bearings at the front end and the rear end of the machine core seat, the outer ring of each bearing is pressed on the machine core seat through the bearing glands, a turbine and a bearing sealing cover are sequentially and fixedly arranged at the front end of the turbine shaft from front to back, a locking nut is arranged at the foremost end of the turbine shaft, the turbine and the bearing sealing cover are pressed on the inner ring of the front end bearing through the front end locking nut, a machine core seat sealing cover is arranged at the rear end of the machine core seat, the machine core seat sealing cover is fixedly arranged on the machine core seat through screws, and the machine core seat sealing cover presses the bearing at the rear end of the bearing on the machine core seat, a signaling disc is arranged at the rear end of the turbine shaft, a magnetic column is fixedly mounted on the signaling disc and rotates along the circumferential direction of the signaling disc, a locking nut is arranged at the rearmost end of the turbine shaft, and the signaling disc is pressed on an inner ring of a rear-end bearing by the rear-end locking nut; a cylindrical pin for limiting the relative rotation of the rear flow guiding body and the movement seat is arranged between the rear flow guiding body and the movement seat, and a gas flow passage communicated with the gas passage at the periphery of the front flow guiding body is arranged on the movement seat and the rear flow guiding body; the shell is provided with a flow sensor mounting hole perpendicular to the gas channel, the flow sensor is fixedly mounted at the flow sensor mounting hole, a magnet is arranged in the flow sensor and is arranged at the periphery close to the signaling disc, and the flow sensor is connected with the flow volume corrector.
2. The intelligent gas turbine flowmeter of claim 1, wherein the front flow guiding core is integrally provided, a front portion of the front flow guiding core is in a spherical shell shape, a rear portion of the front flow guiding core is in a cylindrical shape, and a circle of flow guiding fins are uniformly arranged on the outer periphery of the rear portion of the front flow guiding core.
3. The intelligent gas turbine flowmeter of claim 1 or 2, wherein the rear portion of the rear flow conductor is spherical shell shaped.
4. The intelligent gas turbine flowmeter of claim 1, wherein the cartridge has a step in a flow sensor mounting hole, wherein the flow sensor mounting hole has a flow sensor gland, wherein the flow sensor gland is in threaded connection with the cartridge, wherein the flow sensor gland presses the flow sensor against the step in the flow sensor mounting hole.
5. The intelligent gas turbine flowmeter of claim 1, further comprising a temperature sensor fixedly mounted on said cartridge, said temperature sensor in communication with said gas passageway and said temperature sensor connected to said flow volume corrector.
6. The intelligent gas turbine flowmeter of claim 1, wherein a core print oil passage is provided in the core print, the core print oil passage communicates with a lubrication space defined by a turbine shaft, a core, and bearings at both ends, a rear fluid passage is provided on the rear fluid guide, an end face oil pipe connecting the core print oil passage and the rear fluid passage is provided between the core print and the rear fluid guide, an oil filling hole perpendicular to the gas passage is provided in the case, an oil cup is connected to the oil filling hole of the case, the oil cup is provided with an oil filling opening and an oil outlet, an oil filling passage communicating the oil filling opening and the oil outlet is provided in the oil cup, and an oil filling pipe connecting the rear fluid passage and the oil outlet is provided between the rear fluid guide and the oil cup.
7. The intelligent gas turbine flowmeter of claim 6, wherein the filler tube is a rigid structure, and both ends of the filler tube extend into the rear fluid gallery and the oil outlet, respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210316201.7A CN114812704A (en) | 2022-03-29 | 2022-03-29 | Intelligent gas turbine flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210316201.7A CN114812704A (en) | 2022-03-29 | 2022-03-29 | Intelligent gas turbine flowmeter |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203893893U (en) * | 2014-05-07 | 2014-10-22 | 宁波创盛仪表有限公司 | Gas turbine meter free of magnetic eddy resistance |
| CN204944544U (en) * | 2015-08-24 | 2016-01-06 | 天津市亿环自动化仪表技术有限公司 | A kind of dry gas sealing structure based on gas turbine meter |
| CN205388491U (en) * | 2016-03-15 | 2016-07-20 | 天信仪表集团有限公司 | Gaseous turbine flowmeter of a main shaft signal sending disk body structure |
| CN106812810A (en) * | 2016-12-30 | 2017-06-09 | 天津市迅尔仪表科技有限公司 | A kind of gas turbine meter bearing location structure and method |
| CN107237837A (en) * | 2017-06-22 | 2017-10-10 | 广州市昊志机电股份有限公司 | A kind of bearing locking component |
| CN107932322A (en) * | 2017-12-06 | 2018-04-20 | 贵州西南工具(集团)有限公司 | A kind of large torque grinding machine spindle water-mist-proof method and structure |
| CN108663091A (en) * | 2018-05-18 | 2018-10-16 | 温州福鑫仪表有限公司 | Gas intelligence worm gear flowmeter |
| CN209230702U (en) * | 2018-12-12 | 2019-08-09 | 上海真兰仪表科技股份有限公司 | A kind of lubrication system of gas turbine meter |
-
2022
- 2022-03-29 CN CN202210316201.7A patent/CN114812704A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203893893U (en) * | 2014-05-07 | 2014-10-22 | 宁波创盛仪表有限公司 | Gas turbine meter free of magnetic eddy resistance |
| CN204944544U (en) * | 2015-08-24 | 2016-01-06 | 天津市亿环自动化仪表技术有限公司 | A kind of dry gas sealing structure based on gas turbine meter |
| CN205388491U (en) * | 2016-03-15 | 2016-07-20 | 天信仪表集团有限公司 | Gaseous turbine flowmeter of a main shaft signal sending disk body structure |
| CN106812810A (en) * | 2016-12-30 | 2017-06-09 | 天津市迅尔仪表科技有限公司 | A kind of gas turbine meter bearing location structure and method |
| CN107237837A (en) * | 2017-06-22 | 2017-10-10 | 广州市昊志机电股份有限公司 | A kind of bearing locking component |
| CN107932322A (en) * | 2017-12-06 | 2018-04-20 | 贵州西南工具(集团)有限公司 | A kind of large torque grinding machine spindle water-mist-proof method and structure |
| CN108663091A (en) * | 2018-05-18 | 2018-10-16 | 温州福鑫仪表有限公司 | Gas intelligence worm gear flowmeter |
| CN209230702U (en) * | 2018-12-12 | 2019-08-09 | 上海真兰仪表科技股份有限公司 | A kind of lubrication system of gas turbine meter |
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