CN108534848A - A kind of the nuclear power flow measurement device and its installation method of single measurement pipe - Google Patents
A kind of the nuclear power flow measurement device and its installation method of single measurement pipe Download PDFInfo
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- CN108534848A CN108534848A CN201810307604.9A CN201810307604A CN108534848A CN 108534848 A CN108534848 A CN 108534848A CN 201810307604 A CN201810307604 A CN 201810307604A CN 108534848 A CN108534848 A CN 108534848A
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- throttling element
- pipe
- measurement pipe
- negative pressure
- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of nuclear power flow measurement device of single measurement pipe and its installation methods, including measurement pipe, throttling element and locating piece；Measurement pipe is integral type measurement pipe, and the front end of measurement pipe is vertically equipped with the positive pressure pressure pipe of perforation；Throttling element is annular slice, throttling element outer shroud moves cooperation with inside pipe wall is measured, throttling element is equipped with the negative pressure pressure port radially penetrated through, measure the detection of negative pressure hole that tube wall is equipped with perforation, radial negative pressure pressure port on throttling element is corresponding with the detection of negative pressure hole site measured on tube wall, and negative pressure pressure pipe is connected to negative pressure pressure port and detection of negative pressure hole；It is equipped with pressure part on positive pressure pressure pipe and negative pressure pressure pipe；Locating piece is placed in ring-shaped throttling part both sides.The installation method of the device includes trepanning, places throttling element, fixed restriction part, installation attachment.By the flow measurement device and its installation method of offer, monoblock type measurement pipe, built-in throttling element are realized, it is entirely avoided welding, and reasonable for structure, construction is simple, it is easy for installation.
Description
Technical field
The present invention relates to a kind of throttling sets, and in particular to a kind of nuclear power flow measurement device and its installation method.
Background technology
In the prior art, Traditional differential pressure formula flowmeter is generally integrally all made of in high temperature and pressure occasion and high-risk medium occasion
Welding form, since welding position designs at throttling element, so restricting element will produce not after by welding heat
With the deformation of degree, this deformation is unrepairable, eventually leads to the measurement accuracy of flowmeter and reduces.
CN202631015U discloses a kind of nuclear power flow measurement device, the measurement pipe of the nuclear power flow measurement device
Peripheral surface and the inner peripheral surface of casing constitute annular pressure obtaning device, measurement pipe and annular pressure obtaning device are monolithic construction form,
It is formed by whole branch forging process, the stress concentration defect for avoiding multiple-pass weld from bringing.But it the measurement pipe of the measuring device and takes
The monolithic construction processing technology of pressure device is more complex, and measurement pipe is divided into the first measurement pipe and the second measurement pipe, two sections of surveys
There is still a need for welding for buret, cannot avoid the stress defect of welding completely.
Invention content
It is an object of the present invention to overcome defect existing in the prior art, a kind of welding, processing technology letter are provided
Single, single pipe convenient for disassembly and assembly nuclear power flow measurement device and its installation method.
To achieve the above object, the technical solution of the present invention is to provide a kind of nuclear powers of single measurement pipe to be filled with flow measurement
It sets, including measurement pipe, throttling element and locating piece；It is characterized in that, the measurement pipe is integral type measurement pipe, the front end of measurement pipe
The vertical positive pressure pressure pipe for being equipped with perforation；The throttling element is annular slice, and throttling element outer shroud moves cooperation, section with inside pipe wall is measured
Stream part is equipped with the negative pressure pressure port radially penetrated through, measures the detection of negative pressure hole that tube wall is equipped with perforation, the radial direction on throttling element
Negative pressure pressure port is corresponding with the detection of negative pressure hole site measured on tube wall, and negative pressure pressure pipe is connected to negative pressure pressure port and negative pressure inspection
Gaging hole；It is equipped with pressure part on the positive pressure pressure pipe and negative pressure pressure pipe；The locating piece is placed in ring-shaped throttling part both sides.It should
The nuclear power flow measurement device of single measurement pipe is mainly characterized by, and measurement pipe is integral type measurement pipe, annular slice section
Stream part is built in measurement pipe, and annular slice throttling element is fixed on inside measurement pipe by locating piece, complete without any weld seam
The full defect for avoiding welding stress.
It is easy to process in order to simplify the location structure of throttling element, convenient for handling throttling element, the leakage of measurement pipe is reduced, is kept away
During exempting from use, the long-term impact flow of fluid, it is institute to make annular slice throttling element deviation position, preferred technical solution
It is shop bolt or positioning screw to state locating piece, and the shop bolt or the every side of positioning screw are respectively set at least provided with three
In the both sides of throttling element, and circumferentially it is uniformly distributed.The position of positioning throttling element is needed in measurement inside pipe wall, opens up blind hole, it is fixed
Position pin or positioning screw screw in blind hole from inside to outside from inside pipe wall is measured, and top protrudes from measurement inside pipe wall, to fixed knot
Part is flowed, this structure is larger suitable for caliber, and operating personnel can enter the structure for measuring and being operated inside pipeline.
When the pipeline of the relatively thin either measurement pipe of the tube wall of measurement pipe is longer or the caliber of measurement pipe is smaller, it is not easy to from survey
When buret inner wall opens up blind hole, further preferred embodiment is to need to position the position of annular slice throttling element in measurement pipe outer wall
It sets and opens up through hole, pin or screw screw in measurement pipe from the through hole measured in pipe outer wall and protrude from measurement inside pipe wall,
To fixed restriction part.In order to avoid gap leads to the leakage of fluid, can be surveyed in shop bolt or the other end of positioning screw
The outer wall of buret uses glass cement or rubber stopper seal.
It is easy to process in order to simplify the location structure of throttling element, convenient for handling throttling element, the leakage of measurement pipe is reduced, is kept away
During exempting from use, the long-term impact flow of fluid makes throttling element deviation position, preferred technical solution be, in the measurement
The inside pipe wall of pipe is respectively equipped with annular groove positioned at the both sides of throttling element installation position, and the locating piece is elastic piston ring, described
Elastic piston ring is two, is installed on respectively in the annular groove of throttling element both sides measured on inside pipe wall, when elastic piston ring is closed,
It is sent into annular groove from nozzle is measured, when elastic piston ring unclamps, a part is placed in annular groove, and a part protrudes from measurement pipe
Inner wall, to fixed restriction part.
The present invention is a kind of installation method for nuclear power flow measurement device that solution prior art problem provides, including with
Lower step：
S1：Trepanning opens up perforation positive pressure pressure port and detection of negative pressure hole, in ring segment on the outer wall of integral type measurement pipe
Connected radial through hole is opened up between the inner and outer wall of shape throttling element, is opened in the both sides of annular slice throttling element installation site
If location hole or positioning annular groove, positioning annular groove are arranged on the inner wall of measurement pipe；
S2：The first annular slice throttling element installation site in measurement pipe, one be sent into along throttling element in front of measurement pipe direction
Side installs pin or screw or elastic piston ring；
S3：Annular slice throttling element is placed, annular slice throttling element is put into installation site from measurement pipe one end nozzle, and
So that the negative pressure pressure port on annular slice throttling element is aligned with the detection of negative pressure hole in measurement pipe, so that it is close on one side and installed
Good pin or screw or elastic piston ring；
S4：Pin or screw or elastic piston ring are installed in the other side of annular slice throttling element again, make throttling element
It is fixed in measurement pipe；
S5：Attachment is installed, and positive pressure pressure pipe is packed into the positive pressure pressure port of measurement pipe, then by negative pressure pressure pipe and measurement
The detection of negative pressure hole of pipe is connected with the negative pressure pressure port on annular slice throttling element, and pressure part is finally separately mounted to positive pressure
On pressure pipe and negative pressure pressure pipe.
When the pipeline of measurement pipe is longer and caliber is smaller, annular slice throttling element cannot be directly put by construction personnel's arm
When installation site, preferred technical solution is that had using pincers worker of rising, annular slice throttling element interstitial hole is stretched on head, is pressed
Rise clamp holder, and pincers end of rising struts, and annular slice throttling element is fixed on the end for the pincers that rise, by annular slice throttling element from measurement
Pipe one end nozzle is put into installation site, after annular slice throttling element fixation, the clamp holder that rises is unclamped, from measurement pipe pipeline
Exit the pincers that rise
When the pipeline or caliber of measurement pipe are smaller, annular slice throttling element directly cannot be put into peace by construction personnel's arm
When holding position, the preferred technical solution may also be that a, a hollow tube one end is connected with air bag；Air bag is passed through annular by b
The circular inside diameters of sheet throttling element；C is inflated from the other end of hollow tube into air bag, and annular slice is fixed after air bag expansion
Throttling element inner wall；Annular slice throttling element is put into installation site by d from measurement pipe one end nozzle, and annular slice throttling element is fixed
After securely, the gas in air bag is discharged from the other end of hollow tube, exits air bag and hollow tube.
When the pipeline or caliber of measurement pipe are smaller, annular slice throttling element directly cannot be put into peace by construction personnel's arm
When holding position, and examined in order to radially penetrate through the negative pressure penetrated through in negative pressure pressure port and measurement pipe on clear view throttling element
Gaging hole technical solution further preferred when whether position is to corresponding to is a, and a hollow tube is passed through inside air bag, protrudes from air bag
Outer wall, connect with air sac sealing, the hollow tube close to balloon side outer wall be equipped with LED light and camera, the hollow tube
It is closed close to balloon segment；Air bag is passed through the inner ring of annular slice throttling element by b；C is filled from the other end of hollow tube into air bag
Gas fixes annular slice throttling element inner ring after air bag expansion；Annular slice throttling element is put by d from measurement pipe one end nozzle
Installation site；E rotates throttling element by external camera display screen, makes the negative pressure pressure port radially penetrated through on throttling element and surveys
The detection of negative pressure hole site penetrated through on buret wall corresponds to, will from the other end of hollow tube after annular slice throttling element fixation
Gas release in air bag, exits air bag and hollow tube.
The present invention is improved to integral type measurement pipe to the multisection type measurement pipe of the prior art, built-in annular slice throttling element,
The stress concentration defect that the weld seam of measurement pipe is brought is avoided, the processing technology of measuring device is simplified；Select locating pin or
Elastic piston ring is applicable in various pipeline situations, and the installation method of the present invention is simple as locating piece, convenient disassembly, reduction material,
The energy and artificial loss, reduce cost.
Description of the drawings
Fig. 1 is 1 sectional structure chart of the embodiment of the present invention；
Fig. 2, which is that the embodiment of the present invention 2 is right, regards schematic diagram；
Fig. 3 is 3 sectional structure chart of the embodiment of the present invention；
Fig. 4, which is that the embodiment of the present invention 1 is right, regards schematic diagram；
Fig. 5 is the tool construction schematic diagram of the placement throttling element in the embodiment of the present invention 5
Fig. 6 is the tool construction schematic diagram of the placement throttling element in the embodiment of the present invention 6
In figure：1, measurement pipe；2, annular slice throttling element；3, locating piece；4, positive pressure pressure pipe；5, negative pressure pressure pipe；6、
Pressure part；：7, annular slice throttling element outer shroud；8, annular slice throttling element inner ring；9, hollow tube；10, air bag；11, LED light；
12, camera；13, air admission hole.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only
For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
The present invention provides a kind of nuclear power flow measurement device of single measurement pipe, including measurement pipe 1, throttling element 2 and fixed
Position part 3；The measurement pipe 1 is integral type measurement pipe, and the front end of measurement pipe 1 is vertically equipped with the positive pressure pressure pipe 4 of perforation；The section
Stream part 2 is annular slice, and throttling element outer shroud 7 is equipped with the negative pressure taking radially penetrated through with the dynamic cooperation of 1 inner wall of measurement pipe, throttling element 2
Hole, 1 wall of measurement pipe is pressed to be equipped with the detection of negative pressure hole of perforation, on the radial negative pressure pressure port and 1 wall of measurement pipe on throttling element 2
Detection of negative pressure hole site is corresponding, and negative pressure pressure pipe 5 is connected to negative pressure pressure port and detection of negative pressure hole；4 He of positive pressure pressure pipe
Pressure part is equipped on negative pressure pressure pipe 5；The locating piece 3 is placed in ring-shaped throttling part both sides.
Embodiment 1
As Figure 1 and Figure 4, easy to process in order to simplify the location structure of throttling element 2, convenient for handling throttling element 2, reduce
The leakage of measurement pipe 1, during avoiding use, the long-term impact flow of fluid makes 2 deviation position of throttling element, preferred technology
Scheme is that the locating piece 3 is shop bolt or positioning screw, and the shop bolt or the every side of positioning screw are at least provided with three
It is a, the both sides of throttling element 2 are respectively arranged at, and be circumferentially uniformly distributed.The position of positioning throttling element 2 is needed in 1 inner wall of measurement pipe
It sets, opens up blind hole, shop bolt or positioning screw from inside pipe wall is measured and screw in blind hole from inside to outside, top protrudes from measurement pipe
Wall, to fixed restriction part, this structure is suitable for that caliber is larger, and operating personnel can enter to measure to be operated inside pipeline
Structure.
Embodiment 2
As shown in Fig. 2, in order to simplify the location structure of throttling element, it is easy to process, convenient for handling throttling element, reduce measurement pipe
Leakage, during avoiding use, the long-term impact flow of fluid makes 2 deviation position of annular slice throttling element, in the measurement
The inside pipe wall of pipe 1 is respectively equipped with annular groove positioned at the both sides of 2 installation position of throttling element, and locating piece 3 selects elastic piston ring, institute
It is two to state elastic piston ring, is installed on respectively in the annular groove of 1 inner wall of measurement pipe of 2 both sides of throttling element, and elastic piston ring is closed
When, it is sent into annular groove from measurement pipe nozzle, when elastic piston ring unclamps, a part is placed in annular groove, and a part protrudes from
Inside pipe wall is measured, to fixed restriction part.
Embodiment 3
As shown in figure 3, when the longer either tube wall of 1 pipeline of measurement pipe is relatively thin or caliber is smaller, it is not easy to out of measurement pipe
When wall opens up blind hole, locating piece 3 selects shop bolt or positioning screw, the shop bolt or positioning screw per side at least provided with
Three, the both sides of throttling element 2 are respectively arranged at, and are circumferentially uniformly distributed.The position of positioning throttling element 2 is needed in measurement pipe outer wall
It sets, it is convex after the through hole precession on 1 outer wall of measurement pipe circumferentially uniformly to open up three through holes, shop bolt or positioning screw
For inside pipe wall is measured, to fixed restriction part 2.In order to avoid gap leads to the leakage of fluid, in shop bolt or can determine
The outer wall of the other end of position screw, measurement pipe uses glass cement or rubber stopper seal.
Embodiment 4
A kind of installation method of nuclear power flow measurement device, includes the following steps：
S1：Trepanning opens up perforation positive pressure pressure port and detection of negative pressure hole, in annular on the outer wall of integral type measurement pipe 1
Connected radial through hole is opened up between the internal diameter and outer diameter of sheet throttling element 2, the two of 2 installation site of annular slice throttling element
Side opens up location hole or positioning annular groove, and positioning annular groove is arranged on the inner wall of measurement pipe；
S2：Side locating piece 3 is installed, first 2 installation site of throttling element in measurement pipe, measurement pipe side is sent into along throttling element 2
Side forwards installs pin or screw or elastic piston ring；
S3：Annular slice throttling element 2 is placed, throttling element 2 is put into installation site from measurement pipe one end nozzle, and make ring
Negative pressure pressure port on shape sheet throttling element 2 is aligned with the detection of negative pressure hole in measurement pipe, so that it is close on one side mounted
Pin or screw or elastic piston ring；
When the pipeline or caliber of measurement pipe 1 are smaller, annular slice throttling element 2 cannot be directly put by construction personnel's arm
When installation site, is had using pincers worker of rising, annular slice throttling element inner ring 8 is stretched into on head, presses the clamp holder that rises, pincers end support of rising
It opens, annular slice throttling element is fixed on the end for the pincers that rise, and annular slice throttling element is put into installation from measurement pipe one end nozzle
Position after annular slice throttling element fixation, unclamps the clamp holder that rises, exits the pincers that rise.
S4：Pin or screw or elastic piston ring are installed in the other side of annular slice throttling element 2 again, make throttling element
2 are fixed in measurement pipe；
S5：Attachment install, by positive pressure pressure pipe 4 be packed into measurement pipe 1 positive pressure pressure port, then by negative pressure pressure pipe 5 with
The detection of negative pressure hole of measurement pipe is connected with the negative pressure pressure port on annular slice throttling element, finally installs pressure part 6 respectively
On positive pressure pressure pipe 4 and negative pressure pressure pipe 5.
Embodiment 5
A kind of installation method of nuclear power flow measurement device, includes the following steps：
S1：Trepanning opens up perforation positive pressure pressure port and detection of negative pressure hole, in annular on the outer wall of integral type measurement pipe 1
Connected radial through hole is opened up between the internal diameter and outer diameter of sheet throttling element 2, the two of 2 installation site of annular slice throttling element
Side opens up location hole or positioning annular groove, and positioning annular groove is arranged on the inner wall of measurement pipe；
S2：Side locating piece 3 is installed, first 2 installation site of throttling element in measurement pipe, measurement pipe side is sent into along throttling element 2
Side forwards installs pin or screw or elastic piston ring；
S3：Annular slice throttling element 2 is placed, throttling element 2 is put into installation site from measurement pipe one end nozzle, and make ring
Negative pressure pressure port on shape sheet throttling element 2 is aligned with the detection of negative pressure hole in measurement pipe, so that it is close on one side mounted
Pin or screw or elastic piston ring；
As shown in figure 5, the pipeline or caliber when measurement pipe are smaller, construction personnel's arm cannot be directly by annular slice section
When stream part is put into installation site, 9 one end of a hollow tube is connected with dumbbell type air bag 10, then wears dumbbell shape air bag 10
Cross the annular inner ring 8 of annular slice throttling element；It is inflated from the other end of hollow tube into air bag 10, ring is fixed after air bag expansion
Annular slice throttling element is put into installation site, annular slice throttling element by shape sheet throttling element inner ring 8 from measurement pipe one end nozzle
After fixation, the gas in air bag is discharged from the other end of hollow tube 9, exits air bag 10 and hollow tube 9.
S4：Pin or screw or elastic piston ring are installed in the other side of annular slice throttling element 2 again, make throttling element
2 are fixed in measurement pipe；
S5：Attachment install, by positive pressure pressure pipe 4 be packed into measurement pipe 1 positive pressure pressure port, then by negative pressure pressure pipe 5 with
The detection of negative pressure hole of measurement pipe is connected with the negative pressure pressure port on annular slice throttling element, finally installs pressure part 6 respectively
On positive pressure pressure pipe 4 and negative pressure pressure pipe 5.
Embodiment 6
A kind of installation method of nuclear power flow measurement device, includes the following steps：
S1：Trepanning opens up perforation positive pressure pressure port and detection of negative pressure hole, in annular on the outer wall of integral type measurement pipe 1
Connected radial through hole is opened up between the internal diameter and outer diameter of sheet throttling element 2, the two of 2 installation site of annular slice throttling element
Side opens up location hole or positioning annular groove, and positioning annular groove is arranged on the inner wall of measurement pipe；
S2：Side locating piece 3 is installed, first 2 installation site of throttling element in measurement pipe, measurement pipe side is sent into along throttling element 2
Side forwards installs pin or screw or elastic piston ring；
S3：Annular slice throttling element 2 is placed, throttling element 2 is put into installation site from measurement pipe one end nozzle, and make ring
Negative pressure pressure port on shape sheet throttling element 2 is aligned with the detection of negative pressure hole in measurement pipe, so that it is close on one side mounted
Pin or screw or elastic piston ring；
As shown in fig. 6, the pipeline or caliber when measurement pipe are smaller, construction personnel's arm cannot be directly by annular slice section
When stream part is put into installation site, and passed through in measurement pipe in order to radially penetrate through negative pressure pressure port on clear view throttling element
Logical detection of negative pressure hole passes through a hollow tube 9 inside air bag 10 when whether position is to corresponding to, and protrudes from the outer wall of air bag 10, with
Air sac sealing connects, and the hollow tube 9 is equipped with LED light 11 and camera 12 close to balloon side outer wall, and the hollow tube 9 is close
Balloon segment is closed；Air bag 10 is passed through to the inner ring 8 of annular slice throttling element；It is inflated from the other end of hollow tube into air bag, gas
Capsule 10 fixes annular slice throttling element inner ring 8 after expanding；Annular slice throttling element is put into installation from measurement pipe one end nozzle
Position；LED light 11 is opened, by 12 display screen of external camera, throttling element is rotated, makes the negative pressure taking radially penetrated through on throttling element
Pressure hole is aligned with the detection of negative pressure hole penetrated through on tube wall is measured, after annular slice throttling element fixation, from the another of hollow tube 9
End discharges the gas in air bag, exits air bag 10 and hollow tube 9.
S4：Pin or screw or elastic piston ring are installed in the other side of annular slice throttling element 2 again, make throttling element
2 are fixed in measurement pipe；
S5：Attachment install, by positive pressure pressure pipe 4 be packed into measurement pipe 1 positive pressure pressure port, then by negative pressure pressure pipe 5 with
The detection of negative pressure hole of measurement pipe is connected with the negative pressure pressure port on annular slice throttling element, finally installs pressure part 6 respectively
On positive pressure pressure pipe 4 and negative pressure pressure pipe 5.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of nuclear power flow measurement device of single measurement pipe, including measurement pipe, throttling element and locating piece；Its feature exists
In the measurement pipe is integral type measurement pipe, and the front end of measurement pipe is vertically equipped with the positive pressure pressure pipe of perforation；The throttling element is
Annular slice, throttling element outer shroud are equipped with the negative pressure pressure port radially penetrated through, measurement pipe with the dynamic cooperation of inside pipe wall, throttling element is measured
Wall is equipped with the detection of negative pressure hole of perforation, the radial negative pressure pressure port on throttling element and the detection of negative pressure hole site on measurement tube wall
Corresponding, negative pressure pressure pipe is connected to negative pressure pressure port and detection of negative pressure hole；It is all provided on the positive pressure pressure pipe and negative pressure pressure pipe
There is pressure part；The locating piece is placed in ring-shaped throttling part both sides.
2. the nuclear power flow measurement device of single measurement pipe according to claim 1, which is characterized in that the locating piece
For shop bolt or positioning screw, the shop bolt or the every side of positioning screw are respectively arranged at throttling element at least provided with three
Both sides, and be circumferentially uniformly distributed.
3. the nuclear power flow measurement device of single measurement pipe according to claim 2, which is characterized in that the positioning pin
Nail or positioning screw run through measurement pipe from outside to inside, and top protrudes from measurement inside pipe wall.
4. the nuclear power flow measurement device of single measurement pipe according to claim 1, which is characterized in that in the measurement
The inside pipe wall of pipe is respectively equipped with annular groove positioned at the both sides of throttling element installation position, and the locating piece is elastic piston ring, described
Elastic piston ring is two, is installed on respectively in the annular groove of throttling element both sides measured on inside pipe wall.
5. the installation method of the nuclear power flow measurement device of the single measurement pipe described in a kind of claim 3 or 4, feature exist
In including the following steps：
S1：Trepanning opens up perforation positive pressure pressure port and detection of negative pressure hole, in annular slice section on the outer wall of integral type measurement pipe
Connected radial through hole is opened up between the internal diameter and outer diameter of stream part, it is fixed to be opened up in the both sides of annular slice throttling element installation site
Position hole or positioning annular groove, positioning annular groove are arranged on the inner wall of measurement pipe；
S2：Side locating piece is installed, first the throttling element installation site in measurement pipe, is sent into along throttling element in front of measurement pipe direction
Side installs pin or screw or elastic piston ring；
S3：Annular slice throttling element is placed, throttling element is put into installation site from measurement pipe one end nozzle, and make annular slice
Negative pressure pressure port on throttling element is aligned with the detection of negative pressure hole in measurement pipe, make its be close on one side mounted pin or
Screw or elastic piston ring；
S4：Other side locating piece is installed, then pacifies pin or screw or elastic piston ring in the other side of annular slice throttling element
It installs, throttling element is made to be fixed in measurement pipe；
S5：Attachment is installed, and positive pressure pressure pipe is packed into the positive pressure pressure port of measurement pipe, then by negative pressure pressure pipe and measurement pipe
Detection of negative pressure hole is connected with the negative pressure pressure port on annular slice throttling element, and pressure part is finally separately mounted to positive pressure pressure
On pipe and negative pressure pressure pipe.
6. the installation method of the nuclear power flow measurement device of single measurement pipe according to claim 5, which is characterized in that
The placement annular slice throttling element step is that the internal diameter of throttling element is propped up using binding clip portion of rising, by throttling element from measurement pipe one
End pipe mouth is put into installation site.
7. the installation method of the nuclear power flow measurement device of single measurement pipe according to claim 5, which is characterized in that
The placement annular slice throttling element step is：One hollow tube one end is connected by a with air bag；Air bag is passed through ring segment by b
The inner ring of shape throttling element；C is inflated from the other end of hollow tube into air bag, and annular slice throttling element is fixed after air bag expansion
Inner ring；Annular slice throttling element is put into installation site by d from measurement pipe one end nozzle；The air bag outer diameter is less than in measurement pipe
Diameter；The hollow pipe outside diameter, which is less than, measures bore.
8. the installation method of the nuclear power flow measurement device of single measurement pipe according to claim 7, which is characterized in that
The placement annular slice throttling element step is：One hollow tube is passed through inside air bag, the outer wall of air bag is protruded from, with air bag by a
It is tightly connected, the hollow tube is equipped with LED light and camera close to balloon side outer wall, and the hollow tube is sealed close to balloon segment
It closes；Air bag is passed through the inner ring of annular slice throttling element by b；C is inflated from the other end of hollow tube into air bag, after air bag expansion
Fix annular slice throttling element inner ring；Annular slice throttling element is put into installation site by d from measurement pipe one end nozzle；E leads to
External camera display screen is crossed, throttling element is rotated, the negative pressure pressure port radially penetrated through on throttling element is made to be penetrated through on measurement tube wall
Detection of negative pressure hole site correspond to, the air bag outer diameter be less than measure bore；The hollow pipe outside diameter, which is less than, measures bore.
9. the installation method of the nuclear power flow measurement device of single measurement pipe according to claim 5, which is characterized in that
The step of installation locating piece is to be packed into pin or screw from the location hole of annular slice throttling element both sides, top protrusion
In measurement inside pipe wall.
10. the installation method of the nuclear power flow measurement device of single measurement pipe according to claim 5, feature exist
It is that the opening clamping of elastic piston ring is made into its closure, is put into and is opened in locating piece both sides in the step of, installation locating piece
Positioning annular groove in, unclamp elastic piston ring, elastic piston ring flick rear portion be placed in positioning annular groove in, it is a part of convex
For measurement inside pipe wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307604.9A CN108534848B (en) | 2018-04-08 | 2018-04-08 | Nuclear power flow measuring device with single measuring pipe and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307604.9A CN108534848B (en) | 2018-04-08 | 2018-04-08 | Nuclear power flow measuring device with single measuring pipe and mounting method thereof |
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| Publication Number | Publication Date |
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| CN108534848A true CN108534848A (en) | 2018-09-14 |
| CN108534848B CN108534848B (en) | 2020-10-23 |
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| CN201810307604.9A Active CN108534848B (en) | 2018-04-08 | 2018-04-08 | Nuclear power flow measuring device with single measuring pipe and mounting method thereof |
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| CN (1) | CN108534848B (en) |
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| US3805612A (en) * | 1971-02-08 | 1974-04-23 | Oval Eng Co Ltd | Orifice flow meter |
| JPS6267412A (en) * | 1985-09-20 | 1987-03-27 | Shisaka Kenkyusho:Kk | Method for measuring flow quantity and orifice flowmeter used in performing said method |
| CN202869560U (en) * | 2012-10-27 | 2013-04-10 | 江阴市神州测控设备有限公司 | Integrated venturi nozzle |
| US20130086994A1 (en) * | 2011-10-05 | 2013-04-11 | Saudi Arabian Oil Company | Pulsating Flow Meter |
| CN203605982U (en) * | 2013-11-26 | 2014-05-21 | 江阴市宏达仪表有限公司 | ASME large-diameter nozzle device |
| CN107063364A (en) * | 2017-03-31 | 2017-08-18 | 上海科洋科技股份有限公司 | A kind of shrunk type Venturi meter |
| CN208125204U (en) * | 2018-04-08 | 2018-11-20 | 江阴市节流装置厂有限公司 | A kind of nuclear power flow measurement device of single measurement pipe |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3805612A (en) * | 1971-02-08 | 1974-04-23 | Oval Eng Co Ltd | Orifice flow meter |
| JPS6267412A (en) * | 1985-09-20 | 1987-03-27 | Shisaka Kenkyusho:Kk | Method for measuring flow quantity and orifice flowmeter used in performing said method |
| US20130086994A1 (en) * | 2011-10-05 | 2013-04-11 | Saudi Arabian Oil Company | Pulsating Flow Meter |
| CN202869560U (en) * | 2012-10-27 | 2013-04-10 | 江阴市神州测控设备有限公司 | Integrated venturi nozzle |
| CN203605982U (en) * | 2013-11-26 | 2014-05-21 | 江阴市宏达仪表有限公司 | ASME large-diameter nozzle device |
| CN107063364A (en) * | 2017-03-31 | 2017-08-18 | 上海科洋科技股份有限公司 | A kind of shrunk type Venturi meter |
| CN208125204U (en) * | 2018-04-08 | 2018-11-20 | 江阴市节流装置厂有限公司 | A kind of nuclear power flow measurement device of single measurement pipe |
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Denomination of invention: A flow measuring device for nuclear power with a single measuring tube and its installation method Effective date of registration: 20230130 Granted publication date: 20201023 Pledgee: Jiangyin branch of Bank of China Ltd. Pledgor: JIANGYIN THROTTLING DEVICE MANUFACTURER Co.,Ltd. Registration number: Y2023980031790 |
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