CN116295697A - Safe in utilization's gas flowmeter - Google Patents
Safe in utilization's gas flowmeter Download PDFInfo
- Publication number
- CN116295697A CN116295697A CN202211720474.4A CN202211720474A CN116295697A CN 116295697 A CN116295697 A CN 116295697A CN 202211720474 A CN202211720474 A CN 202211720474A CN 116295697 A CN116295697 A CN 116295697A
- Authority
- CN
- China
- Prior art keywords
- plate
- hood
- fixedly arranged
- annular
- flowmeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 24
- 239000007789 gas Substances 0.000 abstract description 23
- 239000003345 natural gas Substances 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 238000005192 partition Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
Classifications
-
- 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
- G01F15/185—Connecting means, e.g. bypass conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention belongs to the technical field of industrial instruments, and particularly relates to a gas flowmeter safe to use, which comprises a mounting pipeline and a flowmeter main body, wherein the flowmeter main body is inserted on the mounting pipeline, annular plates are fixedly sleeved at two ends of an outer pipe wall of the mounting pipeline, the inside of each annular plate is hollow, a plurality of air inlets are formed in two side walls of each annular plate, a T-shaped connecting pipe is fixedly inserted between the two annular plates at the lower side of each annular plate, a machine box is arranged below the T-shaped connecting pipe and is communicated with an air outlet end of the T-shaped connecting pipe, and two support rods are fixedly arranged on the upper inner wall of each machine box. The invention can monitor the leaked natural gas in real time, so as to facilitate timely treatment, greatly improve the use safety, and simultaneously, the accuracy of natural gas leakage detection can be greatly improved through intermittent exhaust.
Description
Technical Field
The invention belongs to the technical field of industrial instruments, and particularly relates to a gas flowmeter safe to use.
Background
The gas flowmeter is a meter for measuring gas flow, is arranged in a pipeline for recording the flowing gas quantity, plays an important role in pipeline measurement of natural gas, and has the functions of intelligent alarm, data recording, remote data sending and the like.
The gas flowmeter generally comprises a standard installation pipeline and a flowmeter main body, wherein a detection probe of the flowmeter main body is inserted into the installation pipeline, and is used for converting flow into electric signals for output, three leakage points generally exist during installation, two of the three leakage points are connection points between the installation pipeline and a gas transmission pipeline, the other two of the three leakage points are connection points between the flowmeter main body and the installation pipeline, and the three leakage points are subjected to pipeline vibration, gas transmission impact and other reasons, so that the possibility of leakage of natural gas is generated.
Disclosure of Invention
The invention aims at solving the problems that three leakage points can exist in the gas flowmeter in the prior art, two of the three leakage points are the connection points between an installation pipeline and a gas transmission pipeline, the other two of the three leakage points are the connection points between a flowmeter main body and the installation pipeline, and the three leakage points are likely to leak natural gas due to pipeline vibration, gas transmission impact and the like, and the gas flowmeter can monitor the flow of the natural gas, but cannot detect the leakage of the natural gas, and the leakage of the natural gas is unfavorable for safe production.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a gas flowmeter safe in utilization, includes installation pipeline and flowmeter main part, flowmeter main part is pegged graft on the installation pipeline, the annular plate has all been fixedly cup jointed at the outer tube wall both ends of installation pipeline, and the inside of annular plate is the cavity setting, two a plurality of inlet ports have all been seted up to two lateral walls of annular plate, two the downside is fixed the pegging graft jointly between the annular plate has T shape connecting pipe, the below of T shape connecting pipe is equipped with the box, and the box is linked together with the end of giving vent to anger of T shape connecting pipe and set up, the fixed two bracing pieces that are equipped with of upper inner wall of box, and the ceramic electric plate of the joint fixedly connected with of rod end of two bracing pieces, the terminal surface of ceramic electric plate is fixed with oxide semiconductor pick-up plate, the inside downside of box is fixed and is equipped with the absorption fan, and a plurality of ventholes have been seted up to the lower extreme of box, the outer tube wall of installation pipeline is fixed with the aircraft bonnet, and the inside of aircraft bonnet is equipped with the warning trigger mechanism that is connected with oxide semiconductor pick up.
Preferably, the inside of box is located the fixed baffle that is equipped with of position of ceramic electric plate below, and the fixed grafting of lower extreme of baffle has the outlet duct, below one side of outlet duct is equipped with sealed closure plate, and the fixed connecting block that is equipped with of tip of sealed closure plate, the terminal surface of connecting block is fixed and is equipped with the pivot, the terminal surface that the pivot is located the baffle rotates to be connected, the terminal surface of baffle is fixed and is equipped with micro motor, and micro motor's output is connected with the pivot.
Preferably, the alarm triggering mechanism comprises an iron plate movably arranged in the hood, an electromagnet connected with the oxide semiconductor detection plate is fixedly arranged on the inner wall of the hood, a U-shaped pressing plate is fixedly arranged on the end face of the iron plate, a supporting plate is fixedly arranged in the hood and positioned at the inner side of the U-shaped pressing plate, a pressure switch is fixedly arranged on the end face of the supporting plate, and a buzzer alarm connected with the pressure switch is fixedly arranged at the end part of the hood.
Preferably, annular stainless steel filter screens corresponding to the positions of the air inlet holes are fixedly arranged on the two side walls of the two annular plates.
Preferably, a frustum-shaped cover plate is arranged above the sealing blocking plate, a group of T-shaped rods are fixedly arranged at the lower end of the frustum-shaped cover plate, a plurality of round grooves matched with the T-shaped rods are formed in the lower end of the sealing blocking plate, the rod walls of the T-shaped rods are all in sliding connection with the bottoms of the round grooves, and a first spring is fixedly arranged between the end faces of the horizontal parts of the T-shaped rods and the bottoms of the round grooves on the same side.
Preferably, the inner bottom of the hood is fixedly provided with two guide rods, the rod walls of the two guide rods are in sliding connection with the end face of the iron plate, and the two sides between the side wall of the iron plate and the inner bottom of the hood are fixedly provided with second springs.
Compared with the prior art, the gas flowmeter has the advantages that:
1. through installing pipeline, flowmeter main part that set up, can regard as the gas flowmeter to use, and through the annular slab that sets up, T shape connecting pipe, box, bracing piece, ceramic electric plate, oxide semiconductor pick-up plate, adsorb fan and aircraft bonnet mutually support, through initiative absorption, can cover the position of three probably leaking to can carry out real-time supervision to the natural gas that leaks, in order to in time handle, improve the security of using greatly.
2. Through the mutual cooperation of baffle, outlet duct, sealed closure plate, connecting block, pivot and the micro motor that are equipped with, through this kind of setting, can carry out intermittent type exhaust to can improve the accuracy of gas monitoring, ensure the monitoring effect, through the alarm trigger mechanism who sets up, can be based on the resistance change of oxide semiconductor pick-up plate, automatic trigger buzzer siren work, the people of being convenient for in time learn natural gas leakage.
Drawings
FIG. 1 is a schematic view of a safe-to-use gas flow meter according to the present invention;
FIG. 2 is a schematic view of the internal structure of a safe-to-use gas flow meter provided by the invention;
FIG. 3 is a schematic view of the internal structure of a housing of a safe-to-use gas flow meter according to the present invention;
fig. 4 is an enlarged view of the structure of part a of a gas flow meter of the present invention which is safe for use.
In the figure: 1. installing a pipeline; 2. a flowmeter body; 3. an annular plate; 4. a T-shaped connecting pipe; 5. a machine box; 6. a support rod; 7. a ceramic electric heating plate; 8. an oxide semiconductor detection plate; 9. an adsorption fan; 10. a hood; 11. a partition plate; 12. an air outlet pipe; 13. sealing closure plate; 14. a connecting block; 15. a rotating shaft; 16. a micro motor; 17. an iron plate; 18. an electromagnet; 19. a U-shaped pressing plate; 20. a support plate; 21. a pressure switch; 22. a buzzer alarm; 23. an annular stainless steel filter screen; 24. a frustum-shaped cover plate; 25. a T-bar; 26. a first spring; 27. a guide rod; 28. and a second spring.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
As shown in fig. 1-4, a gas flowmeter safe in use, including installation pipeline 1 and flowmeter main part 2, flowmeter main part 2 peg graft on installation pipeline 1, the annular plate 3 has all been fixed to the outer tube wall both ends of installation pipeline 1, and the inside of annular plate 3 is the cavity setting, a plurality of inlet ports have all been seted up to two lateral walls of two annular plates 3, the downside is fixed the pegging graft jointly between two annular plates 3 has T shape connecting pipe 4, the below of T shape connecting pipe 4 is equipped with box 5, and the box 5 is linked together with the end of giving vent to anger of T shape connecting pipe 4 and is set up, the upper inner wall of box 5 is fixed and is equipped with two bracing pieces 6, and the joint fixedly connected with ceramic electric plate 7 of rod end of two bracing pieces 6, the terminal surface of ceramic electric plate 7 is fixed with oxide semiconductor pick-up plate 8, the inside downside of box 5 is fixed and is equipped with adsorption fan 9, and a plurality of outlet ports have been seted up to the lower extreme of box 5, the outer tube wall of installation pipeline 1 is fixed with aircraft bonnet 10, and the inside of aircraft bonnet 10 is equipped with the warning trigger mechanism that is connected with oxide semiconductor pick-up plate 8.
The inside of the machine box 5 is provided with a baffle 11 at a position below the ceramic electric heating plate 7, the lower end of the baffle 11 is fixedly inserted with an air outlet pipe 12, one side below the air outlet pipe 12 is provided with a sealing blocking plate 13, the end part of the sealing blocking plate 13 is fixedly provided with a connecting block 14, the end face of the connecting block 14 is fixedly provided with a rotating shaft 15, the rotating shaft 15 is positioned on the end face of the baffle 11 and is rotationally connected, the end face of the baffle 11 is fixedly provided with a miniature motor 16, and the output end of the miniature motor 16 is connected with the rotating shaft 15.
The alarm triggering mechanism comprises an iron plate 17 movably arranged in the hood 10, an electromagnet 18 connected with the oxide semiconductor detection plate 8 is fixedly arranged on the inner wall of the hood 10, a U-shaped pressing plate 19 is fixedly arranged on the end face of the iron plate 17, a supporting plate 20 is fixedly arranged in the hood 10 and positioned on the inner side of the U-shaped pressing plate 19, a pressure switch 21 is fixedly arranged on the end face of the supporting plate 20, and a buzzer alarm 22 connected with the pressure switch 21 is fixedly arranged at the end part of the hood 10.
The two side walls of the two annular plates 3 are fixedly provided with annular stainless steel filter screens 23 corresponding to the positions of the air inlet holes.
The upper side of the sealing closure plate 13 is provided with a frustum-shaped cover plate 24, the lower end of the frustum-shaped cover plate 24 is fixedly provided with a group of T-shaped rods 25, the lower end of the sealing closure plate 13 is provided with a plurality of round grooves matched with the T-shaped rods 25, the rod walls of the T-shaped rods 25 are all in sliding connection with the bottoms of the round grooves, and a first spring 26 is fixedly arranged between the end faces of the horizontal parts of the T-shaped rods 25 and the bottoms of the round grooves on the same side.
Two guide rods 27 are fixedly arranged on the inner bottom of the hood 10, the rod walls of the two guide rods 27 are slidably connected with the end face of the iron plate 17, and a second spring 28 is fixedly arranged on both sides between the side wall of the iron plate 17 and the inner bottom of the hood 10.
The principle of operation of the invention is now described as follows: the installation pipeline 1 and the pipeline to be tested are installed and fixed, the monitoring of the gas flow can be carried out in real time through the flowmeter main body 2, the adsorption fan 9 is started in the monitoring process, the installation pipeline 1 and the pipeline to be tested can be covered and adsorbed by matching with a plurality of air inlets through the hood 10, the T-shaped connecting pipe 4 and the two annular plates 3, the adsorbed air enters the hood 10 and then contacts with the oxide semiconductor detection plate 8, if natural gas leaks, the natural gas reacts with the oxide semiconductor detection plate 8, so that the resistance value of the oxide semiconductor detection plate 8 can be reduced, the current flowing into the electromagnet 18 is increased at the moment, the iron plate 17 can be adsorbed, the U-shaped pressing plate 19 can be driven to move, the pressure switch 21 is closed, and the buzzer alarm 22 can be electrified to work and alarm.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The utility model provides a gas flowmeter safe in utilization, includes installation pipeline (1) and flowmeter main part (2), its characterized in that, flowmeter main part (2) peg graft on installation pipeline (1), the outer tube wall both ends of installation pipeline (1) are all fixed to have cup jointed annular plate (3), and the inside of annular plate (3) is the cavity setting, two a plurality of inlet ports have all been seted up to two lateral walls of annular plate (3), two the downside is fixed jointly to peg graft between annular plate (3) has T shape connecting pipe (4), the below of T shape connecting pipe (4) is equipped with quick-witted box (5), and quick-witted box (5) are linked together with the end of giving vent to anger of T shape connecting pipe (4) and are linked together and set up, the upper inner wall of quick-witted box (5) is fixed to be equipped with two bracing pieces (6), and the common fixedly connected with ceramic electric heating plate (7) of rod end of two bracing pieces (6), the inside downside of machine box (5) is fixed with oxide semiconductor plate (8), the inside downside of machine box (5) is fixed to be equipped with adsorption fan (9), and quick-witted box (5) is equipped with the inside of a plurality of outer tube (10) and the outer tube (10), and the inside of machine box (1) is equipped with the air outlet opening of oxidation detector (10).
2. The gas flowmeter of claim 1, wherein the inside of the machine box (5) is provided with a baffle plate (11) at a position fixed below the ceramic electric heating plate (7), the lower end of the baffle plate (11) is fixedly inserted with an air outlet pipe (12), one side below the air outlet pipe (12) is provided with a sealing blocking plate (13), the end part of the sealing blocking plate (13) is fixedly provided with a connecting block (14), the end face of the connecting block (14) is fixedly provided with a rotating shaft (15), the rotating shaft (15) is positioned on the end face of the baffle plate (11) and is rotationally connected, the end face of the baffle plate (11) is fixedly provided with a miniature motor (16), and the output end of the miniature motor (16) is connected with the rotating shaft (15).
3. The gas flowmeter of claim 1, wherein the alarm triggering mechanism comprises an iron plate (17) movably arranged in the hood (10), an electromagnet (18) connected with the oxide semiconductor detection plate (8) is fixedly arranged on the inner wall of the hood (10), a U-shaped pressing plate (19) is fixedly arranged on the end face of the iron plate (17), a supporting plate (20) is fixedly arranged at the inner side of the U-shaped pressing plate (19) in the hood (10), a pressure switch (21) is fixedly arranged on the end face of the supporting plate (20), and a buzzer alarm (22) connected with the pressure switch (21) is fixedly arranged at the end of the hood (10).
4. A gas flowmeter of claim 1, wherein the two side walls of the annular plates (3) are each fixedly provided with an annular stainless steel screen (23) corresponding to the position of the inlet holes.
5. The gas flowmeter of claim 1, wherein a frustum-shaped cover plate (24) is arranged above the sealing closure plate (13), a group of T-shaped rods (25) are fixedly arranged at the lower end of the frustum-shaped cover plate (24), a plurality of round grooves matched with the T-shaped rods (25) are formed at the lower end of the sealing closure plate (13), the rod walls of the T-shaped rods (25) are slidably connected with the bottoms of the round grooves, and a first spring (26) is fixedly arranged between the horizontal end faces of the T-shaped rods (25) and the bottoms of the round grooves on the same side.
6. A gas flowmeter according to claim 1, characterized in that the inner bottom of the hood (10) is fixedly provided with two guide rods (27), the rod walls of the two guide rods (27) are slidably connected with the end face of the iron plate (17), and the two sides between the side wall of the iron plate (17) and the inner bottom of the hood (10) are fixedly provided with second springs (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211720474.4A CN116295697A (en) | 2022-12-30 | 2022-12-30 | Safe in utilization's gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211720474.4A CN116295697A (en) | 2022-12-30 | 2022-12-30 | Safe in utilization's gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116295697A true CN116295697A (en) | 2023-06-23 |
Family
ID=86793110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211720474.4A Pending CN116295697A (en) | 2022-12-30 | 2022-12-30 | Safe in utilization's gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116295697A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116592960A (en) * | 2023-07-17 | 2023-08-15 | 陕西诺盈自动化仪表有限公司 | High-pressure hydrogen mass flowmeter |
-
2022
- 2022-12-30 CN CN202211720474.4A patent/CN116295697A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116592960A (en) * | 2023-07-17 | 2023-08-15 | 陕西诺盈自动化仪表有限公司 | High-pressure hydrogen mass flowmeter |
| CN116592960B (en) * | 2023-07-17 | 2023-10-17 | 陕西诺盈自动化仪表有限公司 | High-pressure hydrogen mass flowmeter |
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