CN114543921A - Emergency pressure relief shell of flowmeter - Google Patents
Emergency pressure relief shell of flowmeter Download PDFInfo
- Publication number
- CN114543921A CN114543921A CN202011328517.5A CN202011328517A CN114543921A CN 114543921 A CN114543921 A CN 114543921A CN 202011328517 A CN202011328517 A CN 202011328517A CN 114543921 A CN114543921 A CN 114543921A
- Authority
- CN
- China
- Prior art keywords
- shell
- flowmeter
- pressure
- pipe
- side wall
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- G01F15/14—Casings, e.g. of special material
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an emergency pressure relief shell of a flowmeter, which comprises a flowmeter shell and a throttling element arranged in the flowmeter shell, wherein the flowmeter shell is formed by combining a first shell and a second shell, the first shell and the second shell are connected in a clamping manner, mounting holes are formed in the left side wall and the right side wall of the flowmeter shell, the throttling element is a pipe fitting structure of which the middle diameter is smaller than the diameters of the two ends, a liquid inlet pipe orifice and a liquid outlet pipe orifice are respectively formed at the two ends of the throttling element in an integrated manner, the liquid inlet pipe orifice and the liquid outlet pipe orifice are respectively clamped in the mounting holes in the left side wall and the right side wall of the flowmeter shell, pressure guiding pipes are arranged at the lower sides of the liquid inlet pipe orifice and the throttling element, and a through hole is formed in the second shell of the flowmeter shell; through be provided with the pressure release pipeline on the one side pipe wall towards the connecting plate at the pressure introduction pipe to set up the piston among the lumen of pressure release pipeline, thereby under the great condition of temperature variation, can effectively avoid measuring the expend with heat and contract with cold of liquid and lead to the pressure introduction pipe to burst and leave the potential safety hazard.
Description
Technical Field
The invention relates to the related technical field of flowmeters, in particular to an emergency pressure relief outer shell of a flowmeter.
Background
The flowmeter is used for measuring the fluid flow in a pipeline or an open channel, and is divided into a differential pressure flowmeter, a rotor flowmeter, a throttling flowmeter, a slit flowmeter, a volume flowmeter, an electromagnetic flowmeter, an ultrasonic flowmeter and the like; classifying according to media: liquid flow meters and gas flow meters; metering is on the eye of industrial production. The flow measurement is one of the components of the measurement science and technology, and has close relation with national economy, national defense construction and scientific research. The work is done, so that the flowmeter has important effects on ensuring the product quality, improving the production efficiency and promoting the development of scientific technology, particularly in the current times with energy crisis and increasingly high industrial production automation degree, the flow meter has more obvious status and effect in national economy, but the pressure guide pipe structure of the traditional differential pressure type flowmeter is simpler, so that the pressure guide pipe can be cracked when the temperature is higher due to the expansion with heat and the contraction with cold of the measuring liquid under the condition of larger temperature change, and potential safety hazards are left.
Disclosure of Invention
The invention aims to provide an emergency pressure relief outer shell of a flowmeter, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an emergency pressure relief shell of a flowmeter comprises a flowmeter shell and a throttling piece arranged inside the flowmeter shell, wherein the flowmeter shell is formed by combining a first shell and a second shell which are connected in a clamping manner, the left side wall and the right side wall of the flowmeter shell are respectively provided with a mounting hole, the throttling piece is a pipe fitting structure of which the middle diameter is smaller than the diameters of the two ends, the two ends of the throttling piece are respectively integrally formed with a liquid inlet pipe orifice and a liquid outlet pipe orifice, the liquid inlet pipe orifice and the liquid outlet pipe orifice are respectively clamped in the mounting holes in the left side wall and the right side wall of the flowmeter shell, the liquid inlet pipe orifice and the lower side of the throttling piece are provided with a pressure leading pipe, the second shell of the flowmeter shell is provided with a through hole, a telescopic electric cylinder is arranged at the position of the through hole, the telescopic rod of the telescopic electric cylinder extends into the inner cavity of the flowmeter shell through the through hole, and a support piece is fixedly connected onto the telescopic rod of the telescopic electric cylinder through a connecting piece, and a group of mounting brackets are symmetrically arranged on two sides of the second shell, a guide rod is arranged on the inner side wall of the second shell, a connecting plate is arranged on the guide rod and movably mounted on the guide rod through a guide rod hole on the connecting plate, a supporting spring is connected to the rear side surface of the connecting plate, and a supporting plate is connected to the other end of the connecting spring.
Preferably, the vertical plate body of the mounting bracket is provided with a mounting groove, the mounting groove is a straight notch, and the length of the horizontal plate body of the mounting bracket is longer than that of the telescopic electric cylinder.
Preferably, an observation groove is formed in the first shell of the flowmeter shell, the notch of the observation groove corresponds to the pressure guiding pipe, the inner side plate body of the first shell is arranged for fitting the pipe wall of the pressure guiding pipe, and a transparent glass plate is embedded in the notch of the observation groove.
Preferably, the support member is of a cylindrical structure, the front side face of the cylinder is provided with an installation cavity, the diameter of the installation cavity is matched with the diameter of the plate body of the support plate, the support plate is connected with the bottom face of the installation cavity, and the connecting spring on the support plate is in a compressed state when the telescopic electric cylinder is in a process state.
Preferably, support piece installation cavity lateral wall front end fixedly connected with piezo-resistor, piezo-resistor carries out the electricity with PLC control module and is connected, and PLC's signal output part carries out signal of telecommunication with flexible electric jar and connects, and piezo-resistor when flexible electric jar process state, and it sets up for laminating mutually with the connecting plate.
Preferably, the pressure release pipe is arranged on the pipe wall of one side of the pressure guide pipe, which faces the connecting plate, five groups of pressure release pipes are arranged on the side wall of the pressure guide pipe at equal intervals, pistons are arranged in the pipe cavities of the pressure release pipes, the rear sides of the pistons are connected with piston rods, and the rod bodies of the piston rods are connected with the plate body of the connecting plate.
Preferably, a limiting member is disposed at an opening position of the rear end of the pressure relief pipeline, the limiting member is of a circular ring structure, an inner diameter of a ring of the limiting member is matched with a diameter of the piston rod, and the rod body of the piston rod is movably disposed in an inner hole of the limiting member.
Preferably, the front side of the piston is an arc-shaped surface, and when the telescopic electric cylinder is in a process state, the front side of the piston and the inner wall of the pipe body of the pressure guiding pipe are arranged in parallel.
Compared with the prior art, the invention has the beneficial effects that:
1. the pressure relief pipeline is arranged on the pipe wall of one side, facing the connecting plate, of the pressure introduction pipe, and the piston is arranged in the pipe cavity of the pressure relief pipeline, so that the potential safety hazard caused by explosion of the pressure introduction pipe due to expansion caused by heat and contraction caused by cold of the measuring liquid can be effectively avoided under the condition of large temperature change;
2. the piezoresistor is fixedly connected to the front end of the side wall of the mounting cavity of the supporting piece and is in electrical signal connection with the PLC control module, so that the piezoresistor monitors the pressed size of the supporting piece, the pressure in the pressure-releasing pipe is monitored, and the end of the pressure-releasing pipe can be blocked by the piston when the internal pressure of the pressure-releasing pipe is in a proper range, so that the influence of the branching position of the pipe body on the normal work of the pressure-releasing pipe is avoided;
3. the limiting part is arranged at the opening position of the rear end of the pressure relief pipeline, so that the stability of the piston rod during forward and backward movement is guaranteed under the action of the limiting part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a half sectional view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a half sectional view of the pressure guiding pipe and the supporting member;
FIG. 6 is an enlarged view of the structure at B in FIG. 5;
fig. 7 is an enlarged view of the structure at C in fig. 5.
In the figure: the flow meter comprises a flow meter shell 1, a throttling element 2, a liquid inlet pipe orifice 3, a liquid discharge pipe orifice 4, a pressure guiding pipe 5, a telescopic electric cylinder 6, a mounting bracket 7, a mounting groove 8, an observation groove 9, a guide rod 10, a connecting plate 11, a guide rod hole 12, a pressure relief pipeline 13, a piston 14, a piston rod 15, a connecting spring 16, a supporting plate 17, a supporting element 18 and a piezoresistor 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: an emergency pressure relief shell of a flowmeter comprises a flowmeter shell 1 and a throttling piece 2 arranged inside the flowmeter shell 1, wherein the flowmeter shell 1 is formed by combining a first shell and a second shell which are connected in a clamping manner, mounting holes are formed in the left side wall and the right side wall of the flowmeter shell 1, the throttling piece 2 is of a pipe fitting structure, the middle diameter of the throttling piece is smaller than the diameters of the two ends of the throttling piece, a liquid inlet pipe orifice 3 and a liquid outlet pipe orifice 4 are formed in the two ends of the throttling piece respectively in an integrated manner, the liquid inlet pipe orifice 3 and the liquid outlet pipe orifice 4 are clamped in the mounting holes in the left side wall and the right side wall of the flowmeter shell 1 respectively, a pressure guiding pipe 5 is arranged on the lower sides of the liquid inlet pipe orifice 3 and the throttling piece 2, a through hole is formed in the second shell of the flowmeter shell 1, a telescopic electric cylinder 6 is arranged at the position of the through hole, and a telescopic rod of the telescopic electric cylinder 6 extends into the inner cavity of the flowmeter shell 1 through the through hole, and the telescopic rod of the telescopic electric cylinder 6 is fixedly connected with a support piece 18 through a connecting piece, a group of mounting brackets 7 are symmetrically arranged on two sides of the second shell, a guide rod 10 is arranged on the inner side wall of the second shell, a connecting plate 11 is arranged on the guide rod 10, the connecting plate 11 is movably mounted on the guide rod 10 through a guide rod hole 12 on the connecting plate 11, a supporting spring 16 is connected on the rear side surface of the connecting plate 11, and the other end of the connecting spring 16 is connected with a supporting plate 17.
Furthermore, a mounting groove 8 is formed in the vertical plate body of the mounting bracket 7, the mounting groove 8 is a straight notch, and the length of the transverse plate body of the mounting bracket 7 is longer than that of the telescopic electric cylinder 6;
furthermore, an observation groove 9 is formed in the first shell of the flowmeter shell 1, the notch of the observation groove 9 corresponds to the position of the pressure guiding pipe 5, the inner side plate body of the first shell is arranged for the pipe wall of the pressure guiding pipe 5 in a fitting mode, and a transparent glass plate is embedded in the notch of the observation groove 9.
Furthermore, the supporting member 18 is a cylindrical structure, and the front side of the cylinder is provided with a mounting cavity, the diameter of the mounting cavity is matched with the diameter of the plate body of the supporting plate 17, the supporting plate 17 is connected with the bottom surface of the mounting cavity, and the connecting spring 16 on the supporting plate 17 is in a compressed state when the telescopic electric cylinder 6 is in a process state.
Further, support piece 18 installation cavity lateral wall front end fixedly connected with piezo-resistor 19, piezo-resistor 19 is connected with PLC control module electricity, and PLC's signal output part carries out signal connection with flexible electric jar 6, and piezo-resistor 19 is when flexible electric jar 6 process state, it sets up for laminating mutually with connecting plate 11, through at support piece 18 installation cavity lateral wall front end fixedly connected with piezo-resistor 19, and through carrying out signal connection with PLC control module with it, thereby let it monitor support piece 18's pressurized size, thereby monitor the pressure in the pressure guiding pipe 5, thereby guarantee that its internal pressure is when suitable within range, piston 14 can be stopped up the tip of pressure release pipeline 13, thereby avoid its body bifurcation position to cause the influence to the normal work of pressure guiding pipe 5.
Further, be provided with pressure release pipeline 13 on the one side pipe wall of pressure introduction pipe 5 towards connecting plate 11, pressure release pipeline 13 is provided with five groups on the lateral wall of pressure introduction pipe 5 equidistant altogether, and all be provided with piston 14 among pressure release pipeline 13's the lumen, piston 14's rear side all is connected with piston rod 15, and the body of rod of piston rod 15 all is connected with the plate body of connecting plate 11, through be provided with pressure release pipeline 13 on pressure introduction pipe 5 towards one side pipe wall of connecting plate 11, and set up piston 14 among pressure release pipeline 13's the lumen, thereby under the great condition of temperature variation, can effectively avoid measuring liquid expend with heat and contract with cold and lead to the pressure introduction pipe to burst and leave the potential safety hazard.
Furthermore, a limiting member is disposed at the rear end opening of the pressure relief pipe 13, the limiting member is of a circular ring structure, and the inner diameter of the circular ring is matched with the diameter of the piston rod 15, the rod body of the piston rod 15 is movably disposed in the inner hole of the limiting member, and the limiting member is disposed at the rear end opening of the pressure relief pipe 13, so that the stability of the piston rod 15 during moving back and forth is ensured by the action of the limiting member.
Further, the front side of the piston 14 is an arc-shaped surface, and when the telescopic electric cylinder 6 is in a process state, the front side of the piston 14 is flush with the inner wall of the pressure guiding pipe 5.
The working principle is as follows: in actual use, liquid with flow to be measured flows in from the liquid inlet pipe orifice 3, flows into the throttling element 2 and flows out from the liquid discharge pipe orifice 4, the diameter of the pipe body of the throttling element 2 is irregularly arranged, so that when the liquid with the flow to be measured flows through the throttling element 2, pressure difference is generated in the pressure introduction pipe 5, a worker can measure the flow speed of the liquid with the flow to be measured according to the liquid level difference of the measuring liquid on two sides of the pipe body of the U-shaped part of the pressure introduction pipe 5, and when the working environment temperature of the flowmeter is overhigh, when the internal pressure of the pressure introduction pipe 5 is increased due to the effect of expansion caused by heat and contraction caused by cold of the measuring liquid in the pressure introduction pipe 5, the pressure of the liquid is transmitted to the piston rod 15 through the piston 14 and transmitted to the connecting plate 11 through the piston rod 15, so as to apply pressure to the piezoresistor 19 fixed at the front end of the side wall of the mounting cavity of the supporting element 18, and when its pressure value reached the limit, PLC control module can be to the transmission signal of telecommunication of flexible electric jar 6 to control the motion of flexible electric jar 6 return stroke, and when losing the support effect of flexible electric jar 6, piston 14 can be in pressure release pipeline 13 play one end distance, thereby accomplish and carry out the pressure release to the inner chamber of leading to pressure pipe 5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an emergent pressure release shell body of flowmeter, includes flowmeter shell (1) and sets up throttling element (2) inside flowmeter shell (1), its characterized in that: the flowmeter shell (1) is composed of a first shell and a second shell in a combined mode, the first shell and the second shell are connected in a clamped mode, mounting holes are formed in the left side wall and the right side wall of the flowmeter shell (1), the throttling piece (2) is a pipe fitting structure with the middle diameter smaller than the diameters of the two ends, the two ends of the throttling piece are respectively provided with a liquid inlet pipe orifice (3) and a liquid outlet pipe orifice (4) in an integrated mode, the liquid inlet pipe orifice (3) and the liquid outlet pipe orifice (4) are respectively clamped in the mounting holes in the left side wall and the right side wall of the flowmeter shell (1), a pressure leading pipe (5) is arranged on the lower sides of the liquid inlet pipe orifice (3) and the throttling piece (2), a through hole is formed in the second shell of the flowmeter shell (1), the telescopic electric cylinder (6) is installed at the position of the through hole, the telescopic rod of the telescopic electric cylinder (6) extends into the inner cavity of the flowmeter shell (1) through the through hole, and a support piece (18) is fixedly connected to the telescopic rod of the telescopic electric cylinder (6), and a group of mounting brackets (7) are symmetrically arranged on two sides of the second shell, a guide rod (10) is arranged on the inner side wall of the second shell, a connecting plate (11) is arranged on the guide rod (10), the connecting plate (11) is movably mounted on the guide rod (10) through a guide rod hole (12) on the connecting plate, a supporting spring (16) is connected on the rear side surface of the connecting plate (11), and the other end of the connecting spring (16) is connected with a supporting plate (17).
2. The emergency relief outer casing of a flowmeter of claim 1, wherein: the mounting bracket is characterized in that a mounting groove (8) is formed in the vertical plate body of the mounting bracket (7), the mounting groove (8) is a straight notch, and the length of the horizontal plate body of the mounting bracket (7) is longer than that of the telescopic electric cylinder (6).
3. The emergency relief casing body of a flow meter according to claim 1, wherein: the flowmeter is characterized in that an observation groove (9) is formed in a first shell of the flowmeter shell (1), the notch of the observation groove (9) corresponds to the position of the pressure leading pipe (5), the pipe wall of the pressure leading pipe (5) is arranged for being attached to the inner side plate body of the first shell, and a transparent glass plate is embedded in the notch of the observation groove (9).
4. The emergency relief outer casing of a flowmeter of claim 1, wherein: the support piece (18) is of a cylindrical structure, the front side face of the cylinder is provided with an installation cavity, the diameter of the installation cavity is matched with that of a plate body of the support plate (17), the support plate (17) is connected with the bottom face of the installation cavity, and the connecting spring (16) on the support plate (17) is in a compressed state when the telescopic electric cylinder (6) is in a process state.
5. The emergency relief outer casing of a flowmeter of claim 4, wherein: support piece (18) installation cavity lateral wall front end fixedly connected with piezo-resistor (19), piezo-resistor (19) are connected with PLC control module carries out the electricity, and PLC's signal output part carries out signal connection with flexible electric jar (6), and piezo-resistor (19) when flexible electric jar (6) process state, and it sets up for laminating mutually with connecting plate (11).
6. The emergency relief outer casing of a flowmeter of claim 1, wherein: the pressure-relief pipe (13) is arranged on the pipe wall of one side, facing the connecting plate (11), of the pressure-relief pipe (5), five groups of pressure-relief pipes (13) are arranged on the side wall of the pressure-relief pipe (5) at equal intervals, pistons (14) are arranged in the pipe cavities of the pressure-relief pipes (13), piston rods (15) are connected to the rear sides of the pistons (14), and the rod bodies of the piston rods (15) are connected with the plate bodies of the connecting plate (11).
7. The emergency relief outer casing of a flowmeter of claim 6, wherein: the rear end opening position of the pressure relief pipeline (13) is provided with a limiting piece, the limiting piece is of a circular ring structure, the inner diameter of the circular ring is matched with the diameter of the piston rod (15), and the rod body of the piston rod (15) is movably arranged in the inner hole of the limiting piece.
8. The emergency relief outer casing of a flowmeter of claim 6, wherein: the front side surface of the piston (14) is an arc-shaped surface, and when the telescopic electric cylinder (6) is in a process state, the front side surface of the piston (14) and the inner wall of the pipe body of the pressure guiding pipe (5) are arranged in an even mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011328517.5A CN114543921A (en) | 2020-11-24 | 2020-11-24 | Emergency pressure relief shell of flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011328517.5A CN114543921A (en) | 2020-11-24 | 2020-11-24 | Emergency pressure relief shell of flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114543921A true CN114543921A (en) | 2022-05-27 |
Family
ID=81659748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011328517.5A Pending CN114543921A (en) | 2020-11-24 | 2020-11-24 | Emergency pressure relief shell of flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114543921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117012518A (en) * | 2023-08-15 | 2023-11-07 | 固靠电气股份有限公司 | Power transformer temperature control device and method |
-
2020
- 2020-11-24 CN CN202011328517.5A patent/CN114543921A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117012518A (en) * | 2023-08-15 | 2023-11-07 | 固靠电气股份有限公司 | Power transformer temperature control device and method |
| CN117012518B (en) * | 2023-08-15 | 2024-04-09 | 固靠电气股份有限公司 | Power transformer temperature control device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201707077U (en) | Balance flow meter | |
| CN204359372U (en) | A kind of pressure temperature measuring integrated ultrasonic flowmeter buret section | |
| CN114543921A (en) | Emergency pressure relief shell of flowmeter | |
| CN102620776B (en) | Built-in middle through hole dynamic throttling element flowmeter | |
| CN201852602U (en) | Insert-type flow meter | |
| CN104501884A (en) | Rectangular flowmeter | |
| CN204214501U (en) | Separate type flowmeter watchcase | |
| CN202631016U (en) | Function hole balance flow meter | |
| CN202693044U (en) | Horizontal float flow meter | |
| CN201262559Y (en) | Plug-in flow measuring device based on MEMS sensor | |
| CN104236644A (en) | Novel water meter with middle-through-hole movable throttling element | |
| CN104236642A (en) | Novel flowmeter with middle-through-hole movable throttling element | |
| CN201607252U (en) | Flow meter of Ploba speed uniform tube | |
| CN211060987U (en) | Industrial large-caliber ultrasonic water meter | |
| CN104567986A (en) | FBG (fiber bragg grating)-based multifunctional flow sensor provided with embedded standard nozzle | |
| CN203069218U (en) | Uniform-velocity tube flowmeter | |
| CN209783663U (en) | Large-caliber inner cone flowmeter | |
| CN208736486U (en) | One kind having heat-resisting quantity vortex-shedding meter | |
| CN202868190U (en) | Pipe section capable of preventing bubbles and water hammer from being produced in pipeline | |
| CN220751264U (en) | Small-flow plug-in flowmeter | |
| CN218097887U (en) | Pipeline transportation hydrogen metering facility | |
| CN213301368U (en) | U-shaped correlation ultrasonic water meter pipe section | |
| CN201413164Y (en) | Ball valve insertion type cone shaped flow meter | |
| CN105043465B (en) | Middle through-hole dynamic throttling element class target formula gas meter, flow meter | |
| CN215261997U (en) | Multifunctional flowmeter checking table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220527 |