CN114000867B - Shallow water flow meter under water - Google Patents
Shallow water flow meter under water Download PDFInfo
- Publication number
- CN114000867B CN114000867B CN202111328311.7A CN202111328311A CN114000867B CN 114000867 B CN114000867 B CN 114000867B CN 202111328311 A CN202111328311 A CN 202111328311A CN 114000867 B CN114000867 B CN 114000867B
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- seat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 42
- 238000007906 compression Methods 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 40
- 238000002955 isolation Methods 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 31
- 230000005855 radiation Effects 0.000 claims description 24
- 229910052790 beryllium Inorganic materials 0.000 claims description 20
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 10
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 10
- 230000008054 signal transmission Effects 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000002285 radioactive effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
-
- 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
-
- 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
- G01F15/18—Supports or connecting means for meters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a shallow water underwater flowmeter, which comprises a flowmeter main body, wherein a probe bin, a pressure measurement module, an electronic bin and the like are arranged on the flowmeter main body, the pressure measurement module comprises a differential pressure sensor and a differential pressure mounting seat, the differential pressure sensor is arranged on the differential pressure mounting seat, the differential pressure mounting seat is arranged on the outer wall of the flowmeter main body, two pressure detection ends of the differential pressure sensor are respectively connected with a pressure guiding hole on the flowmeter main body through a pressure guiding pipe assembly, and a pressure signal output line is connected with the electronic bin; the electronic bin and the probe bin are separated, and the electronic bin and the probe bin are connected with a data transmission cable through a wire harness adapter. The scheme has the remarkable effects that the processing mode of the pressure guiding hole and the structure of the pressure measuring module are simplified, so that the processing difficulty is reduced, and the maintenance is convenient; the electronic bin is isolated from the probe bin, so that the influence on the electronic bin caused by leakage and pressure loss of the probe bin is avoided, the pressure data transmission line directly enters the electronic bin, and the influence of unstable factors of the probe bin on the data line and the data transmission is eliminated.
Description
Technical Field
The invention relates to an offshore oil engineering equipment instrument, in particular to an underwater metering device for offshore oil engineering.
Background
Underwater flowmeters are key devices for measuring the well flow of marine oil and gas wells. Unlike multiphase flow meters used on land or on drilling platforms, underwater flow meters need to face harsher marine environments, not only to achieve accurate measurement of well flow of marine oil and gas wells, but also to have excellent corrosion resistance and sealing performance.
The radioactive source flowmeter is used as a novel underwater flowmeter and comprises a radioactive emission component, a radioactive receiving detection component, a pressure (differential pressure) detection component, a temperature detection component, an electronic component and the like. Because the straight-face underwater multiphase flow of the ray receiving and detecting bin is provided with a sealing structure, when the bin is still provided with cracking and leakage risks, the operation of each cable in the ray receiving and detecting bin is influenced, potential influence is caused on the bin of the electronic component assembly, and the situation similar to the situation exists between two adjacent bins needing to be threaded with wire harnesses. Meanwhile, the pressure (differential pressure) detection assembly of the existing underwater flowmeter is complex in structure, and has a plurality of defects in the aspect of pressure taking hole processing and pressure taking structural design.
Disclosure of Invention
In view of this, the present invention provides a shallow water underwater flow meter.
The technical scheme is as follows:
the utility model provides a shallow water flowmeter under water, includes the flowmeter main part, runs through in this flowmeter main part have fluid metering channel install radial emission module, probe storehouse and pressure measurement module in the flowmeter main part still install the electron storehouse on the probe storehouse, radial emission module sends the ray and passes fluid metering channel, probe storehouse detects and acquires the ray of passing fluid metering channel, its characterized in that:
the pressure measurement module comprises a differential pressure sensor and a differential pressure mounting seat, the differential pressure sensor is arranged on the differential pressure mounting seat, the differential pressure mounting seat is arranged on the outer wall of the flowmeter main body, two pressure guiding holes are further formed in the flowmeter main body, the inner ends of the pressure guiding holes are respectively communicated with the fluid metering channel, pressure guiding pipe assemblies are respectively inserted into the outer ends of the two pressure guiding holes, the output ends of the pressure guiding pipe assemblies are respectively connected with the pressure measurement end of the differential pressure sensor, and the pressure output end of the differential pressure sensor is connected with the electronic bin through a pressure signal output line;
a separation seat for separating the electronic bin and the probe bin is arranged between the electronic bin and the probe bin, a wire harness via hole for communicating the electronic bin and the probe bin is arranged on the separation seat, and a wire harness adapter is embedded in the wire harness via hole in a sealing manner.
The beneficial effects are that: the processing mode of the pressure guiding hole and the structure of the pressure measuring module are simplified, so that the processing difficulty is reduced, and the maintenance is convenient; the electronic bin is isolated from the probe bin, so that the influence on the electronic bin caused by leakage and pressure loss of the probe bin is avoided, the pressure data transmission line directly enters the electronic bin, and the influence of unstable factors of the probe bin on the data line and the data transmission is eliminated.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
fig. 3 is a schematic diagram of the structure of the differential pressure sensor 21;
FIG. 4 is a schematic diagram of the differential pressure mount 22;
FIG. 5 is a schematic view of the structure of the pressure tube assembly;
fig. 6 is a schematic structural view of the crimp connector locking seat 30;
FIG. 7 is a cross-sectional view B-B of FIG. 2;
FIG. 8 is a cross-sectional view A-A of FIG. 2;
FIG. 9 is a schematic diagram of the connection structure of the electronic bin x and the probe bin y;
FIG. 10 is an enlarged view of the portion p of FIG. 9;
FIG. 11 is a schematic cross-sectional view of the radiation emitting module w and the probe bin y;
FIG. 12 is a schematic diagram of the structure of the radiation emitting module w and the radiation detecting module;
fig. 13 is a schematic diagram showing the assembly relationship among the collimator w22, the first beryllium pad w23, the first isolation seat w24, and among the compression ring y32, the second beryllium pad y33, and the second isolation seat y 34.
Detailed Description
The invention is further described below with reference to examples and figures.
As shown in fig. 1-13, the shallow water underwater flowmeter comprises a flowmeter main body 10, wherein a fluid metering channel is penetrated through the flowmeter main body 10, a venturi channel is arranged in the fluid metering channel, a radiation emitting module w, a probe bin y and a pressure measuring module z are arranged on the flowmeter main body 10, an electronic bin x is also arranged on the probe bin y, the radiation emitting module w emits radiation and penetrates through the fluid metering channel, and the probe bin y detects and acquires the radiation penetrating through the fluid metering channel.
The flowmeter comprises a flowmeter main body 10, a radiation emitting module w, a probe bin y, a radiation detecting module and a radiation receiving module, wherein the radiation emitting window and the detecting window are respectively arranged on two sides of a fluid metering channel, the inner end of the radiation emitting window is opposite to the inner end of the detecting window and is respectively communicated with the fluid metering channel, the radiation emitting module w is arranged in the radiation emitting window, the probe bin y is buckled on the detecting window and is communicated with the detecting window, and the radiation detecting module is arranged in the probe bin y and is used for detecting and receiving radiation passing through the fluid metering channel;
the radiation emission module w comprises a radiation source group w21, a collimator w22 and a first isolation seat w24 which are sequentially arranged, wherein the radiation source group w21 is fixed at the outer end of the emission window, the first isolation seat w24 is positioned at the inner end of the emission window, the collimator w22 is positioned between the first isolation seat w24 and the radiation source group w21, the first isolation seat w24 separates and seals the fluid metering channel from the emission window, the inner end face of the first isolation seat w24 is flush with and adaptive to the inner wall of the fluid metering channel, a first beryllium pad w23 is arranged between the collimator w22 and the first isolation seat w24, and the first isolation seat w24 is made of titanium alloy;
the ray exploration module comprises a probe assembly y31, a compression ring y32 and a second isolation seat y34 which are sequentially arranged, the probe assembly y31 is fixed in the probe bin y, the second isolation seat y34 is positioned at the inner end of an exploration window, the compression ring y32 is positioned between the probe assembly y31 and the second isolation seat y34, the second isolation seat y34 separates and seals the fluid metering channel from the exploration window, the inner end face of the second isolation seat y34 is flush with and adaptive to the inner wall of the fluid metering channel, a second beryllium pad y33 is arranged between the compression ring y32 and the second isolation seat y34, and the second isolation seat y34 is made of titanium alloy.
A first embedded counter bore is formed in the surface, facing the collimator w22, of the first isolation seat w24, a first top block w221 matched with the first embedded counter bore is formed in the collimator w22, a beryllium sheet embedded opening is formed in the first top block w221, the beryllium sheet embedded opening faces the hole bottom of the first embedded counter bore, the first beryllium pad w23 is embedded in the beryllium sheet embedded opening and matched with the beryllium sheet embedded opening, the first top block w221 stretches into the first embedded counter bore, the stretching-in end of the first top block w221 is abutted against the hole bottom of the first embedded counter bore, the first beryllium pad w23 is abutted against the hole bottom of the first embedded counter bore, a collimating hole w22a is formed in the collimator w22 in a penetrating mode, one end of the collimating hole w22a is large in aperture, the other end of the collimating hole w22a is small in aperture mode, the small hole end of the collimating hole w22a faces the radioactive source group w21, and the large hole end of the collimating hole w22a faces the beryllium sheet embedded in the first radiating source group w 21;
a second embedded counter bore is formed in the surface, facing the compression ring y32, of the second isolation seat y34, the second beryllium pad y33 is embedded in the second embedded counter bore and matched with the second embedded counter bore, the compression ring y32 compresses the second beryllium pad y33 and the second isolation seat y34 simultaneously, the second embedded counter bore comprises a round hole section and a round table hole section, the round hole section is close to the fluid metering channel, the round table hole section faces the compression ring y32, the second beryllium pad y33 is embedded in the round hole section, a circle of compression flange y321 is arranged on the end surface, facing the second embedded counter bore, of the compression ring y32, the compression flange y321 is close to the inner ring of the compression ring y32, the inner ring of the compression flange y321 is flush with the inner ring of the compression ring y32, the compression flange y321 is embedded in the round table hole section, the outer ring of the compression flange y321 is matched with the wall of the round table hole section, and the compression flange y321 is matched with the end surface of the compression ring y32, and the compression flange y32 is embedded in the compression ring y 32;
the thickness of the second beryllium pad y33 is greater than the thickness of the first beryllium pad w 23.
The electronic bin x comprises a bin barrel 71, one end of the bin barrel 71 is sealed, a bin barrel flange 72 is fixed at the other end of the bin barrel 71, the inner ring of the bin barrel flange 72 is matched with the inner barrel wall of the bin barrel 71, the probe bin y is cylindrical, the outer diameter of the probe bin y is equal to the outer diameter of the bin barrel flange 72, and the bin barrel flange 72 is coaxially and fixedly installed with the probe bin y through bolts;
at least one pressure signal introduction hole radially penetrates through the bin barrel flange 72, pressure signal adapter 61 is respectively and hermetically arranged at the outer ends of the pressure signal introduction holes, and an abutting plane is arranged on the outer circumferential surface of the bin barrel flange 72 and surrounds the outer ends of the pressure signal introduction holes.
A separation seat 51 for separating the electronic bin x and the probe bin y is arranged between the electronic bin x and the probe bin y, the separation seat 51 can be independently arranged, a shell with the probe bin y can be formed, a wire harness via hole 5c for communicating the electronic bin x and the probe bin y is arranged on the separation seat 51, and a wire harness adapter 52 is embedded in the wire harness via hole 5c in a sealing manner.
The wire harness via hole 5c comprises a via hole first section and a via hole second section which are axially communicated, wherein the aperture of the via hole second section is larger than that of the via hole first section, the wire harness adapter 52 comprises a cylindrical adapter body which is embedded in the via hole second section, and the inner end face of the adapter body is propped against the hole bottom of the via hole second section; an adapter compressing assembly is further arranged on the separation seat 51 and axially compresses the wire harness adapter 52; the harness adapter 52 is further provided with a radial sealing component, and the radial sealing component is matched with the harness through hole 5c to perform a sealing function.
The adapter compressing assembly comprises a compressing flange 53 arranged on the partition seat 51, a joint perforation is arranged on the compressing flange 53 and is axially communicated with the two sections of the through hole, the aperture of the joint perforation is smaller than the diameter of the joint body, and the compressing flange 53 is abutted against the outer end face of the joint body;
the outer end of the partition seat 51 surrounding the second section of the through hole is provided with a flange counter bore, the compression flange 53 falls into the flange counter bore, and the compression flange 53 is fixed at the bottom of the flange counter bore through bolts; the wire harness plug penetrates through the connector body in the axial direction, the wire harness plug penetrates out of the end faces of the two ends of the connector body respectively, and the two ends of the wire harness plug extend into the section of the through hole and the connector perforation respectively;
the radial sealing assembly comprises at least one second sealing ring, a second sealing groove is arranged on the outer wall of the joint body in a circumferential direction, and the second sealing ring is sleeved in the second sealing groove and abuts against the wall of the second section of the through hole.
The pressure measurement module z comprises a differential pressure sensor 21 and a differential pressure mounting seat 22, the differential pressure sensor 21 is arranged on the differential pressure mounting seat 22, the differential pressure mounting seat 22 is arranged on the outer wall of the flowmeter main body 10, two pressure guiding holes 11 are further arranged on the flowmeter main body 10, the two pressure guiding holes 11 radially penetrate through the flowmeter main body 10, the central connecting line of the two pressure guiding holes 11 is parallel to the axial direction of the fluid metering channel, the inner ends of the pressure guiding holes 11 are respectively communicated with the fluid metering channel, pressure guiding pipe assemblies are respectively inserted into the outer ends of the two pressure guiding holes 11, the output ends of the pressure guiding pipe assemblies are respectively connected with the pressure measurement ends of the differential pressure sensor 21, and the pressure output ends of the differential pressure sensor 21 are connected with the pressure signal adapter 61 through pressure signal output lines 55;
the differential pressure sensor 21 comprises a differential pressure gauge body 211 and a signal transmission connector 212 fixed on the differential pressure gauge body, a differential pressure gauge clamping groove 22a which is adaptive to the differential pressure gauge body 211 and a pressure line transmission through hole 22b which is adaptive to the signal transmission connector 212 are arranged on the differential pressure mounting seat 22, one end of the pressure line transmission through hole 22b is communicated with the differential pressure gauge clamping groove 22a, the other end of the pressure line transmission through hole 22b penetrates out of the differential pressure mounting seat 22, the differential pressure gauge body 211 is embedded in the differential pressure gauge clamping groove 22a, the signal transmission connector 212 penetrates out of the pressure line transmission through hole 22b, the signal transmission connector 212 is connected with one end of a pressure signal output line 55, and the differential pressure mounting seat 22 is fixed on the outer wall of the flowmeter body 10.
The pressure guiding pipe assembly comprises a pressure guiding joint 23 and a pressure guiding pipe body 24, the pressure guiding joint 23 comprises a pressure guiding pipe connecting section 231 and a connecting hole imbedding section 232 which are sequentially connected along the axial direction, the connecting hole imbedding section 232 at least partially protrudes out of the pressure guiding pipe connecting section 231 along the circumferential direction, two ends of the pressure guiding pipe body 24 are respectively communicated with the differential pressure sensor 21 and the corresponding pressure guiding pipe connecting section 231, and the pressure guiding pipe connecting section 231 is sleeved with a pressure guiding joint locking seat 30 which is matched with the corresponding pressure guiding hole 11;
when the pressure guiding and connecting locking seat 30 is locked on the pressure guiding hole 11, the connecting hole inserting section 232 can be limited between the inserting end of the pressure guiding and connecting seat 30 and the hole bottom of the pressure guiding hole 11, and the gap between the outer peripheral surface of the pressure guiding and connecting section 231 and the wall of the pressure guiding hole 11 is sealed.
The pressure guiding hole 11 comprises a screw hole, an insertion hole, a shaft sealing hole and an overflow hole which are communicated in sequence in the axial direction, wherein the shaft sealing hole is in a round table shape, the front end of the connecting hole insertion section 232 is provided with a first shaft cover which is matched with the shaft sealing hole and is in a round table shape, the front end of the connecting hole insertion section 232 is inserted into the shaft sealing hole, the first shaft cover is bonded with the shaft sealing hole and is axially pressed, the middle part of the connecting hole insertion section 232 is inserted into the insertion hole, and the tail part of the connecting hole insertion section 232 is positioned in the screw hole;
the pressure guiding joint locking seat 30 comprises a hexagonal nut section 31 and a screw rod section 32 which are sequentially connected along the axial direction and are matched with each other, a joint mounting hole 33 is axially penetrated through the pressure guiding joint locking seat 30, the pressure guiding joint locking seat 30 is sleeved on the sealing pressure guiding pipe connecting section 231, the screw rod section 32 is screwed in the screw rod hole, and the screw rod section 32 is axially abutted to the tail of the connecting hole embedding section 232.
The tail end of the connecting hole embedding section 232 is provided with a truncated cone-shaped second shaft cover, the joint mounting hole 33 is internally provided with a truncated cone-shaped axial compression surface matched with the second shaft cover, and the axial compression surface is axially compressed with the second shaft cover;
the middle part of the connecting hole embedding section 232 is also provided with a first radial sealing groove in a circumferential direction, and a first sealing ring is arranged in the first radial sealing groove and is tightly attached to the inner wall of the embedding hole.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a shallow water flowmeter under water, includes flowmeter main part (10), runs through on this flowmeter main part (10) have fluid measurement passageway install ray emission module (w), probe storehouse (y) and pressure measurement module (z) on flowmeter main part (10) still install electronic storehouse (x) on probe storehouse (y), ray emission module (w) sends the ray and passes fluid measurement passageway, probe storehouse (y) are surveyed and are obtained the ray of passing fluid measurement passageway, its characterized in that:
the pressure measurement module (z) comprises a differential pressure sensor (21) and a differential pressure mounting seat (22), the differential pressure sensor (21) is arranged on the differential pressure mounting seat (22), the differential pressure mounting seat (22) is arranged on the outer wall of the flowmeter main body (10), two pressure guiding holes (11) are further formed in the flowmeter main body (10), the inner ends of the pressure guiding holes (11) are respectively communicated with the fluid metering channel, pressure guiding pipe assemblies are respectively inserted into the outer ends of the two pressure guiding holes (11), the output ends of the pressure guiding pipe assemblies are respectively connected with the pressure measurement ends of the differential pressure sensor (21), and the pressure output end of the differential pressure sensor (21) is connected with the electronic bin (x) through a pressure signal output line (55);
a separation seat (51) for separating the electronic bin (x) and the probe bin (y) is arranged between the electronic bin (x) and the probe bin (y), a wire harness via hole (5 c) for communicating the electronic bin (x) and the probe bin (y) is arranged on the separation seat (51), and a wire harness adapter (52) is embedded in the wire harness via hole (5 c) in a sealing way;
the two pressure guiding holes (11) are radially penetrated on the flowmeter main body (10), and the central connecting line of the two pressure guiding holes (11) is parallel to the axial direction of the fluid metering channel;
the differential pressure sensor (21) comprises a differential pressure meter body (211) and a signal transmission connector (212) fixed on the differential pressure meter body, a differential pressure meter clamping groove (22 a) which is adaptive to the differential pressure meter body (211) and a pressure line transmission through hole (22 b) which is adaptive to the signal transmission connector (212) are arranged on the differential pressure meter mounting seat (22), one end of the pressure line transmission through hole (22 b) is communicated with the differential pressure meter clamping groove (22 a), the other end of the pressure line transmission through hole (22 b) penetrates out of the differential pressure mounting seat (22), the differential pressure meter body (211) is embedded in the differential pressure meter clamping groove (22 a), the signal transmission connector (212) penetrates out of the pressure line transmission through hole (22 b), the signal transmission connector (212) is connected with one end of the pressure signal output line (55), and the differential pressure mounting seat (22) is fixed on the outer wall of the flowmeter body (10);
the pressure guiding pipe assembly comprises a pressure guiding joint (23) and a pressure guiding pipe body (24), the pressure guiding joint (23) comprises a pressure guiding pipe connecting section (231) and a connecting hole imbedding section (232) which are sequentially connected along the axial direction, the connecting hole imbedding section (232) at least partially protrudes out of the pressure guiding pipe connecting section (231) along the circumferential direction, two ends of the pressure guiding pipe body (24) are respectively communicated with the differential pressure sensor (21) and the corresponding pressure guiding pipe connecting section (231), and a pressure guiding joint locking seat (30) matched with the corresponding pressure guiding hole (11) is sleeved on the pressure guiding pipe connecting section (231);
when the pressure guiding joint locking seat (30) is locked on the pressure guiding hole (11), the connecting hole embedding section (232) can be limited between the insertion end of the pressure guiding joint locking seat (30) and the hole bottom of the pressure guiding hole (11), and a gap between the outer peripheral surface of the pressure guiding pipe connecting section (231) and the hole wall of the pressure guiding hole (11) is sealed.
2. The shallow water underwater flow meter of claim 1 wherein: the pressure guiding hole (11) comprises a screw hole, an insertion hole, a shaft sealing hole and an overflow hole which are communicated in sequence in the axial direction, wherein the shaft sealing hole is in a round table shape, a first shaft cover which is matched with the shaft sealing hole and is in a round table shape is arranged at the front end of the connecting hole insertion section (232), the front end of the connecting hole insertion section (232) is inserted into the shaft sealing hole, the first shaft cover is attached to the shaft sealing hole and is axially pressed, the middle part of the connecting hole insertion section (232) is inserted into the insertion hole, and the tail part of the connecting hole insertion section (232) is positioned in the screw hole;
the pressure guiding joint locking seat (30) comprises a hexagonal nut section (31) and a screw rod section (32) which are sequentially connected along the axial direction, a joint mounting hole (33) is axially penetrated through the pressure guiding joint locking seat (30), the pressure guiding joint locking seat (30) is sleeved on the sealing pressure guiding pipe connecting section (231), the screw rod section (32) is screwed in the screw rod hole, and the screw rod section (32) is tightly propped against the tail axial direction of the connecting hole embedding section (232).
3. A shallow water underwater flow meter as claimed in claim 2 wherein: the tail end of the connecting hole embedding section (232) is provided with a truncated cone-shaped second shaft cover, the joint mounting hole (33) is internally provided with a truncated cone-shaped axial compression surface matched with the second shaft cover, and the axial compression surface is axially compressed with the second shaft cover;
the middle part of the connecting hole imbedding section (232) is also provided with a first radial sealing groove in a circumferential direction, a first sealing ring is arranged in the first radial sealing groove, and the first sealing ring is tightly attached to the inner wall of the imbedding hole.
4. A shallow water underwater flowmeter according to claim 1, 2 or 3, wherein: the wire harness via hole (5 c) comprises a via hole first section and a via hole second section which are axially communicated, wherein the aperture of the via hole second section is larger than that of the via hole first section, the wire harness adapter (52) comprises a cylindrical adapter body which is embedded in the via hole second section, and the inner end face of the adapter body abuts against the hole bottom of the via hole second section;
an adapter compressing assembly is further arranged on the separation seat (51) and axially compresses the wire harness adapter (52);
the wire harness adapter (52) is also provided with a radial sealing component which is matched with the wire harness through hole (5 c) to play a role in sealing.
5. The shallow water underwater flow meter of claim 4 wherein: the adapter compacting assembly comprises a compacting flange (53) arranged on the separation seat (51), a joint perforation is arranged on the compacting flange (53), the joint perforation is axially communicated with the two sections of the through hole, the aperture of the joint perforation is smaller than the diameter of the joint body, and the compacting flange (53) is abutted against the outer end face of the joint body;
the outer end of the partition seat (51) surrounding the second section of the through hole is provided with a flange counter bore, the compression flange (53) falls into the flange counter bore, and the compression flange (53) is fixed at the bottom of the flange counter bore through a bolt;
the wire harness plug penetrates through the connector body in the axial direction, the wire harness plug penetrates out of the end faces of the two ends of the connector body respectively, and the two ends of the wire harness plug extend into the section of the through hole and the connector perforation respectively;
the radial sealing assembly comprises at least one second sealing ring, a second sealing groove is arranged on the outer wall of the joint body in a circumferential direction, and the second sealing ring is sleeved in the second sealing groove and abuts against the wall of the second section of the through hole.
6. The shallow water underwater flow meter of claim 5 wherein: the electronic bin (x) comprises a bin barrel (71), one end of the bin barrel (71) is sealed, the other end of the bin barrel is fixedly provided with a bin barrel flange (72), the inner ring of the bin barrel flange (72) is matched with the inner barrel wall of the bin barrel (71), and the bin barrel flange (72) is arranged on the outer wall of the probe bin (y) through bolts;
a pressure signal introduction hole radially penetrates through the bin barrel flange (72), a pressure signal adapter (61) is arranged at the outer end of the pressure signal introduction hole in a sealing manner, and one end of a pressure signal output line (55) is connected with the pressure signal adapter (61);
an abutment plane is arranged on the outer circumferential surface of the bin barrel flange (72) around the outer end of the pressure signal introduction hole;
the probe bin (y) is cylindrical, the outer diameter of the probe bin (y) is equal to the outer diameter of the bin barrel flange plate (72), and the bin barrel flange plate (72) and the probe bin (y) are coaxially and fixedly installed.
7. A shallow water underwater flowmeter according to claim 1, 2 or 3, wherein: the flow meter comprises a flow meter main body (10), wherein a transmitting window and a exploring window are arranged on two sides of a fluid metering channel respectively, the inner end of the transmitting window is opposite to the inner end of the exploring window and is communicated with the fluid metering channel respectively, a ray transmitting module (w) is arranged in the transmitting window, a probe bin (y) is buckled on the exploring window and is communicated with the exploring window, a ray exploring module is arranged in the probe bin (y), and the ray exploring module explores and receives rays passing through the fluid metering channel;
the radiation emission module (w) comprises a radiation source group (w 21), a collimator (w 22) and a first isolation seat (w 24) which are sequentially arranged, the radiation source group (w 21) is fixed at the outer end of the emission window, the first isolation seat (w 24) is positioned at the inner end of the emission window, the collimator (w 22) is positioned between the first isolation seat (w 24) and the radiation source group (w 21), the first isolation seat (w 24) separates and seals the fluid metering channel from the emission window, the inner end face of the first isolation seat (w 24) is flush with and is matched with the inner wall of the fluid metering channel, a first beryllium pad (w 23) is arranged between the collimator (w 22) and the first isolation seat (w 24), and the first isolation seat (w 24) is made of titanium alloy;
the ray exploration module comprises a probe assembly (y 31), a compression ring (y 32) and a second isolation seat (y 34) which are sequentially arranged, the probe assembly (y 31) is fixed in the probe bin (y), the second isolation seat (y 34) is located at the inner end of an exploration window, the compression ring (y 32) is located between the probe assembly (y 31) and the second isolation seat (y 34), the second isolation seat (y 34) separates and seals the fluid metering channel from the exploration window, the inner end face of the second isolation seat (y 34) is flush with and is matched with the inner wall of the fluid metering channel, a second beryllium pad (y 33) is arranged between the compression ring (y 32) and the second isolation seat (y 34), and the second isolation seat (y 34) is made of titanium alloy.
8. The shallow water underwater flow meter of claim 7 wherein: a first embedded counter bore is formed in the surface, facing the collimator (w 22), of the first isolation seat (w 24), a first top block (w 221) matched with the first embedded counter bore is formed in the collimator (w 22), a beryllium sheet embedded opening is formed in the first top block (w 221), the beryllium sheet embedded opening faces the bottom of the first embedded counter bore, a first beryllium pad (w 23) is embedded in the beryllium sheet embedded opening and matched with the beryllium sheet embedded opening, the first top block (w 221) stretches into the first embedded counter bore, the stretching-in end of the first top block (w 221) is abutted against the bottom of the first embedded counter bore, the first beryllium pad (w 23) is abutted against the bottom of the first embedded counter bore, a collimating hole (w 22 a) is formed in the collimator (w 22) in a penetrating mode, one end of the collimating hole (w 22 a) is large in aperture, the other end of the collimating hole (w 22 a) is small in aperture, and the radiating end of the collimating hole (w 22 a) faces the source end of the beryllium sheet (w 22 a) and faces the collimating hole (w 23);
a second embedded counter bore is formed in the surface, facing the compression ring (y 32), of the second isolation seat (y 34), the second beryllium pad (y 33) is embedded in the second embedded counter bore and matched with the second embedded counter bore, the compression ring (y 32) simultaneously compresses the second beryllium pad (y 33) and the second isolation seat (y 34), the second embedded counter bore comprises a round hole section and a circular truncated cone hole section, wherein the round hole section is close to the fluid metering channel, the circular truncated cone hole section is towards the compression ring (y 32), the second beryllium pad (y 33) is embedded in the round hole section, a circle of compression flange (y 321) is arranged on the end surface, facing the second embedded counter bore, of the compression ring (y 32), the compression flange (y 321) is close to the inner ring of the compression ring (y 32), the inner ring of the compression flange (y 321) is flush with the inner ring of the second isolation seat (y 32), the compression flange (y 321) is embedded in the round hole section, the compression flange (y 321) is embedded in the compression ring (y 321) and the second annular seat (y 32), and the compression flange (y 321) is matched with the outer ring (y 32);
the second beryllium pad (y 33) has a thickness greater than the thickness of the first beryllium pad (w 23).
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| AT517817B1 (en) * | 2015-09-15 | 2017-08-15 | Avl List Gmbh | Device with split pot motor for measuring flow processes of measuring fluids |
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| US4466290A (en) * | 1981-11-27 | 1984-08-21 | Rosemount Inc. | Apparatus for conveying fluid pressures to a differential pressure transducer |
| US5679901A (en) * | 1991-10-08 | 1997-10-21 | Lew; Hyok Sang | Vortex sensing pressure transducer |
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