CN210719270U - Moment gas flowmeter - Google Patents
Moment gas flowmeter Download PDFInfo
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- CN210719270U CN210719270U CN201921186766.8U CN201921186766U CN210719270U CN 210719270 U CN210719270 U CN 210719270U CN 201921186766 U CN201921186766 U CN 201921186766U CN 210719270 U CN210719270 U CN 210719270U
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Abstract
The utility model discloses a moment gas flowmeter, include by body, fore-stock, inside callipers jump ring, moment impeller, static torque sensor, back, wiring board, clamping ring, the key and the HX chip of amplifying of symmetry, characterized by: the torque sensor is characterized in that a clamping groove, a groove and symmetrical positioning grooves are formed in the torque sensor body, a boss is fixedly connected in the torque sensor body, an inner clamping spring is arranged in the clamping groove, a front support is arranged in the groove, the inner clamping spring is in contact with the front support, a torque impeller input shaft is hinged to the center of the front support, a torque impeller output shaft is provided with a square groove II and a round hole II, the square groove II is communicated with the round hole II, and a square groove III is formed in the input shaft and the output shaft of the static torque sensor respectively. The utility model relates to a gas flow sensor field, specifically say, relate to a moment gas flowmeter. The utility model discloses a moment gas flowmeter is favorable to realizing the gas flowmeter measurement.
Description
Technical Field
The utility model relates to a gas flow sensor field, specifically say, relate to a moment gas flowmeter.
Background
The existing gas turbine flowmeter adopts a structural scheme of rotating a turbine by a shaft, a front guide fluid and a secondary rectifier are arranged in front of the turbine, a rear guide fluid is arranged behind the turbine, bearings are arranged at two ends of a turbine shaft, a mounting bracket is arranged in a body of the gas turbine flowmeter, the bearings at two ends of the turbine shaft are fixed, and a protective cavity of a magnetic sensing element extends into the middle of the body of the gas turbine flowmeter. The gas turbine flowmeter adopting the structure has the advantages of multiple mechanical parts, high material cost, large processing difficulty, high installation difficulty and long production period. In practical application, the gas turbine flowmeter is also provided with an oil tank and an oil injection device, lubricating oil is injected into the bearing periodically according to the operation time, so that the bearing is reliable in operation, the measurement accuracy of the gas turbine flowmeter is ensured, and the lubricating oil in the bearing is contacted with impurities of gas to form oil sludge, so that the gas turbine flowmeter is detached and cleaned every year, the maintenance cost is increased, and the maintenance workload is increased. In addition, during the use process, when the pressure of the gas to be measured suddenly changes, the turbine shaft is easy to deform, and the gas turbine flowmeter is scrapped. The gas turbine flowmeter has the advantages that the front of the turbine is provided with the pilot fluid and the secondary rectifier, so that the gas turbine flowmeter has large resistance, the pressure loss is large when high-speed gas is measured, the energy is not saved, the mounting bracket and the protective cavity of the magnetic sensing element are arranged in the body of the gas turbine flowmeter in a deep mode, when the gas turbine flowmeter works, high-flow-rate gas forms a vortex street, the vortex street causes vibration sensed by the gas turbine, the higher the flow rate is, the higher the frequency of the vortex street is, the higher the vibration frequency sensed by the gas turbine is, and the fatigue deformation of a rotating shaft of the turbine. The front guide fluid, the secondary rectifier and the rear guide fluid of the gas turbine flowmeter are installed, the installation support and the protection cavity of the magnetic sensing element are arranged in the body of the gas turbine flowmeter in a penetrating mode, the stability of gas flow is changed during operation, the Reynolds number of gas is increased, and the linearity change of the gas turbine flowmeter is large. This is a disadvantage of the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a moment gas flowmeter is favorable to realizing the gas flowmeter measurement.
The utility model adopts the following technical scheme to realize the purpose of the invention:
the utility model provides a moment gas flowmeter, includes by body (1), fore-stock (2), inside callipers jump ring (3), moment impeller (4), static torque sensor (6), after-poppet (7), wiring board (9), clamping ring (10), symmetrical key (12) and HX711 enlargies chip (14), characterized by: a clamping groove (25), a groove (26) and symmetrical positioning grooves (27) are arranged in the body (1), a boss (28) is fixedly connected in the body (1), the inner clamping spring (3) is arranged in the clamping groove (25), the front support (2) is arranged in the groove (26), the inner clamping spring (3) is in contact with the front support (2), an input shaft of the torque impeller (4) is hinged with the center of the front support (2), an output shaft of the torque impeller (4) is provided with a square groove II (23) and a round hole II (24), the square groove II (23) is communicated with the round hole II (24), an input shaft and an output shaft of the static torque sensor (6) are respectively provided with a square groove III (29), keys (12) are respectively fixed in the two square grooves III (29), the input shaft of the static torque sensor (6) is arranged in the round hole II (24), one key (12) sets up in square groove two (23), after-poppet (7) center is provided with round hole one (21), be provided with square groove one (20) on after-poppet (7), square groove one (20) intercommunication round hole one (21), the output shaft setting of static torque sensor (6) is in round hole one (21), another key (12) sets up in square groove one (20), wiring board (9) fixed connection clamping ring (10), clamping ring (10) threaded connection body (1), be provided with symmetrical fixture block (22) on after-poppet (17), after-poppet (17) contact the lateral wall of boss (28), symmetry fixture block (22) set up respectively in constant head tank (27).
As a further limitation of the present invention, a signal line of the static torque sensor (6) is connected to a terminal at one end of the terminal board (9), and a terminal at the other end of the terminal board (9) is connected to the HX711 amplifying chip (14).
As a further limitation of the technical scheme, a pressure sensor (8) is arranged on one side of the wiring board (9), and the pressure sensor (8) is connected with the body (1) in a threaded mode.
As a further limitation of the technical scheme, a PT1000 thermal resistor (11) is arranged on the other side of the wiring board (9), and the PT1000 thermal resistor (11) is in threaded connection with the body (1).
As a further limitation to the technical solution, the body (1) is fixedly connected with a supporting protection body (19), the supporting protection body (19) is fixedly connected with a case (18), a circuit board 17 is fixed on the case (18), the liquid crystal display (16) is fixed on the circuit board (17), a single chip microcomputer (15), the HX711 amplifying chip (14) and a lithium battery mounting seat are fixed on the circuit board (17), a lithium battery (13) is installed in the lithium battery mounting seat, the lithium battery (13) is connected with the single chip microcomputer (15), and the PT1000 thermal resistor (11), the pressure sensor (8), the HX711 amplifying chip (14) and the liquid crystal display (16) are all electrically connected with the single chip microcomputer (15).
As a further limitation of the technical scheme, the front support (2) is opposite to the inlet (5) of the flowmeter.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
(1) the torque gas flowmeter is provided with the front guide fluid and the secondary rectifier in front of the turbine, so that the resistance of the torque gas flowmeter is reduced, the pressure loss is low when high-speed gas is measured, and the energy conservation is facilitated;
(2) the bracket and the protective cavity of the magnetic sensing element which are deep into the middle part of the gas turbine flowmeter body are not arranged, and when the torque gas flowmeter works, high-flow-rate gas forms stable gas flow and cannot cause gas vibration;
(3) the moment gas flowmeter has high reliability in long-time operation, and can save a large amount of maintenance cost.
The utility model discloses a moment gas flowmeter is favorable to realizing the gas flowmeter measurement.
Drawings
Fig. 1 is a schematic view of a partially cut-open structure of the present invention.
Fig. 2 is a schematic diagram of the partially cut-open structure of the present invention.
Fig. 3 is an electrical schematic diagram of the present invention.
Fig. 4 is a schematic structural diagram of the present invention.
Fig. 5 is a schematic view of the rear bracket three-dimensional structure of the present invention.
Fig. 6 is a schematic view of the three-dimensional structure of the torque impeller of the present invention.
Fig. 7 is a schematic view of the body cut open structure of the present invention.
Fig. 8 is a schematic view of the three-dimensional structure of the static torque sensor of the present invention.
Fig. 9 is a schematic structural view of the front bracket of the present invention.
Fig. 10 is a schematic view of a partially cut-open three-dimensional structure of the present invention.
Fig. 11 is a schematic view of the partially cut-open three-dimensional structure of the present invention.
Fig. 12 is a schematic view of a partial three-dimensional structure of the present invention.
In the figure: 1. the device comprises a body, 2, a front support, 3, an inner clamping spring, 4, a torque impeller, 5, a flowmeter inlet, 6, a static torque sensor, 7, a rear support, 8, a pressure sensor, 9, a wiring board, 10, a pressing ring, 11, a PT1000 thermal resistor, 12, a key, 13, a lithium battery, 14, an HX711 amplifying chip, 15, a single chip microcomputer, 16, a liquid crystal display, 17, a circuit board, 18, a meter shell, 19, a supporting protection body, 20, a first square groove, 21, a first round hole, 22, a clamping block, 23, a second square groove, 24, a second round hole, 25, a clamping groove, 26, a groove, 27, a positioning groove, 28, a boss, 29 and a third square groove.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1-12, the utility model discloses a by body 1, fore-stock 2, inside callipers jump ring 3, moment impeller 4, static torque sensor 6, after-poppet 7, wiring board 9, clamping ring 10, symmetrical key 12 and HX711 enlarge chip 14, characterized by: a clamping groove 25, a groove 26 and symmetrical positioning grooves 27 are arranged in the body 1, a boss 28 is fixedly connected in the body 1, the inner clamping spring 3 is arranged in the clamping groove 25, the front support 2 is arranged in the groove 26, the inner clamping spring 3 contacts the front support 2, an input shaft of the torque impeller 4 is hinged with the center of the front support 2, an output shaft of the torque impeller 4 is provided with a square groove II 23 and a round hole II 24, the square groove II 23 is communicated with the round hole II 24, square grooves III 29 are respectively arranged on the input shaft and the output shaft of the static torque sensor 6, keys 12 are respectively fixed in the two square grooves III 29, the input shaft of the static torque sensor 6 is arranged in the round hole II 24, one key 12 is arranged in the square groove II 23, the center of the rear support 7 is provided with a round hole I21, and a square groove I20 is arranged on the rear support 7, the first square groove 20 is communicated with the first round hole 21, an output shaft of the static torque sensor 6 is arranged in the first round hole 21, the other key 12 is arranged in the first square groove 20, the wiring board 9 is fixedly connected with the pressing ring 10, the pressing ring 10 is in threaded connection with the body 1, symmetrical clamping blocks 22 are arranged on the rear support 17, the rear support 17 is in contact with the side wall of the boss 28, and the symmetrical clamping blocks 22 are respectively arranged in the positioning grooves 27.
The signal wire of the static torque sensor 6 is connected with the connection terminal at one end of the connection board 9, and the connection terminal at the other end of the connection board 9 is connected with the HX711 amplifying chip 14.
And a pressure sensor 8 is arranged on one side of the wiring board 9, and the pressure sensor 8 is in threaded connection with the body 1.
The other side of the wiring board 9 is provided with a PT1000 thermal resistor 11, and the PT1000 thermal resistor 11 is in threaded connection with the body 1.
The body 1 is fixedly connected with a supporting protection body 19, the supporting protection body 19 is fixedly connected with a meter shell 18, a circuit board 17 is fixed on the meter shell 18, the liquid crystal display 16 is fixed on the circuit board 17, a single chip microcomputer 15, an HX711 amplifying chip 14 and a lithium battery mounting seat are fixed on the circuit board 17, a lithium battery 13 is installed in the lithium battery mounting seat, the lithium battery 13 is connected with the single chip microcomputer 15, and the PT1000 thermal resistor 11, the pressure sensor 8, the HX711 amplifying chip 14 and the liquid crystal display 16 are electrically connected with the single chip microcomputer 15.
The front bracket 2 is opposite to the inlet 5 of the flowmeter.
The upper part of the PT1000 thermal resistor 11 is disposed inside the supporting and protecting case 19.
The upper part of the pressure sensor 8 is arranged inside the supporting and protecting casing 19.
The utility model discloses the work flow does: when the measured gas flows into the body 1 from the flowmeter inlet 5, the measured gas generates a rotating moment to the torque impeller 4, the torque impeller 4 drives the key 12 matched with the torque impeller 4 to rotate, the rotating moment generated by the torque impeller 4 is transmitted to the static torque sensor 6, the rotating moment generated by the torque impeller 4 is in direct proportion to the flow rate of the measured gas, and the higher the flow rate of the measured gas is, the higher the voltage output by the static torque sensor 6 is. The signal output end of the static torque sensor 6 is connected with the HX711 amplifying chip 14, the signal of the static torque sensor 6 is amplified and then sent to the single chip microcomputer 15 for calculation, because the volume of the gas is greatly influenced by temperature and pressure, the PT1000 thermal resistor 11 and the pressure sensor 8 are arranged on the shell of the body 1, the detected pressure signal and temperature signal are sent to the single chip microcomputer 15 for calculation, the pressure and temperature compensation is carried out on the volume of the gas, a known compensation calculation mode is adopted, the description is omitted, the single chip microcomputer 15 calculates the volume of the gas under a standard working condition, and the calculation result is displayed on the liquid crystal display 16.
The above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a moment gas flowmeter, includes by body (1), fore-stock (2), inside callipers jump ring (3), moment impeller (4), static torque sensor (6), after-poppet (7), wiring board (9), clamping ring (10), symmetrical key (12) and HX711 enlargies chip (14), characterized by: a clamping groove (25), a groove (26) and symmetrical positioning grooves (27) are arranged in the body (1), a boss (28) is fixedly connected in the body (1), the inner clamping spring (3) is arranged in the clamping groove (25), the front support (2) is arranged in the groove (26), the inner clamping spring (3) is in contact with the front support (2), an input shaft of the torque impeller (4) is hinged with the center of the front support (2), an output shaft of the torque impeller (4) is provided with a square groove II (23) and a round hole II (24), the square groove II (23) is communicated with the round hole II (24), an input shaft and an output shaft of the static torque sensor (6) are respectively provided with a square groove III (29), keys (12) are respectively fixed in the two square grooves III (29), the input shaft of the static torque sensor (6) is arranged in the round hole II (24), one key (12) sets up in square groove two (23), after-poppet (7) center is provided with round hole one (21), be provided with square groove one (20) on after-poppet (7), square groove one (20) intercommunication round hole one (21), the output shaft setting of static torque sensor (6) is in round hole one (21), another key (12) sets up in square groove one (20), wiring board (9) fixed connection clamping ring (10), clamping ring (10) threaded connection body (1), be provided with symmetrical fixture block (22) on after-poppet (7), after-poppet (7) contact the lateral wall of boss (28), symmetry fixture block (22) set up respectively in constant head tank (27).
2. The torque gas flowmeter of claim 1, wherein: and a signal wire of the static torque sensor (6) is connected with a wiring terminal at one end of the wiring board (9), and a wiring terminal at the other end of the wiring board (9) is connected with the HX711 amplifying chip (14).
3. The torque gas flowmeter of claim 2, wherein: one side of the wiring board (9) is provided with a pressure sensor (8), and the pressure sensor (8) is in threaded connection with the body (1).
4. The torque gas flowmeter of claim 3, wherein: the other side of the wiring board (9) is provided with a PT1000 thermal resistor (11), and the PT1000 thermal resistor (11) is in threaded connection with the body (1).
5. The torque gas flowmeter of claim 4, wherein: the body (1) is fixedly connected with a supporting protection body (19), the supporting protection body (19) is fixedly connected with a meter shell (18), a circuit board (17) is fixed on the meter shell (18), a liquid crystal display (16) is fixed on the circuit board (17), a single chip microcomputer (15) is fixed on the circuit board (17), an HX711 amplifying chip (14) and a lithium battery mounting seat are installed in the lithium battery mounting seat, a lithium battery (13) is installed in the lithium battery mounting seat, the lithium battery (13) is connected with the single chip microcomputer (15), a PT1000 thermal resistor (11), a pressure sensor (8), the HX711 amplifying chip (14) and the liquid crystal display (16) are electrically connected with the single chip microcomputer (15).
6. The torque gas flowmeter of claim 1, wherein: the front support (2) is over against the inlet (5) of the flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921186766.8U CN210719270U (en) | 2019-07-26 | 2019-07-26 | Moment gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921186766.8U CN210719270U (en) | 2019-07-26 | 2019-07-26 | Moment gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210719270U true CN210719270U (en) | 2020-06-09 |
Family
ID=70966284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921186766.8U Active CN210719270U (en) | 2019-07-26 | 2019-07-26 | Moment gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210719270U (en) |
-
2019
- 2019-07-26 CN CN201921186766.8U patent/CN210719270U/en active Active
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