CN116905813A - Inverted U-shaped prestress steel beam pouring system and method for containment vessel of nuclear power station - Google Patents
Inverted U-shaped prestress steel beam pouring system and method for containment vessel of nuclear power station Download PDFInfo
- Publication number
- CN116905813A CN116905813A CN202310876149.5A CN202310876149A CN116905813A CN 116905813 A CN116905813 A CN 116905813A CN 202310876149 A CN202310876149 A CN 202310876149A CN 116905813 A CN116905813 A CN 116905813A
- Authority
- CN
- China
- Prior art keywords
- valve
- steel beam
- oil
- bearing plate
- pressure
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/101—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to weight of a container for liquid or other fluent material; responsive to level of liquid or other fluent material in a container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1026—Valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The application relates to a pouring system and a pouring method for an inverted U-shaped prestress steel beam of a containment vessel of a nuclear power station, wherein the pouring system comprises two sets of high-pressure pouring pump assemblies and two sets of steel beam force sensor assemblies, and the two sets of steel beam force sensor assemblies are respectively sleeved at two free ends of the inverted U-shaped prestress steel beam; each set of steel beam force sensor component comprises a steel beam force sensor, a lower bearing plate, an upper bearing plate and an oil filling cap; the upper bearing plate and the lower bearing plate are respectively arranged at the upper end and the lower end of the steel beam force sensor and are connected through connecting pieces, and the upper bearing plate is fixed through an embedded bearing plate which is embedded in the building body in advance; the oil filling cap is sleeved at the lower end of the prestress steel beam and is connected with the lower bearing plate; each set of high-pressure filling pump assembly comprises a high-pressure filling pump and a high-temperature high-pressure oil delivery pipe; one end of the high-temperature high-pressure oil delivery pipe is communicated with the high-pressure filling pump, and the other end of the high-temperature high-pressure oil delivery pipe is respectively communicated with the filling cap and the prestressed duct. The pouring system and the method can ensure that the pouring of the prestressed duct is uniform and compact, and can also ensure that the stress change of the prestressed steel bundle is accurately monitored in real time during and after the oil pouring period.
Description
Technical Field
The application belongs to the technical field of building construction in civil engineering, and particularly relates to a system and a method for pouring inverted U-shaped prestress steel beams into a containment vessel of a nuclear power station.
Background
The application of prestressing technology in building structures has been a common phenomenon, particularly in large important constructions (such as nuclear power plant containment vessels), where prestressing steel bundles must be deployed to ensure their structural performance. At present, the arrangement of the prestressed steel bundles mostly adopts a post-tensioning construction method, namely, when a concrete structure is constructed, a prestressed pore canal is reserved (a steel pipe is generally used for forming holes), after concrete pouring is completed, the prestressed steel bundles penetrate into the prestressed pore canal, then, mediums such as cement mortar and the like are poured into the prestressed pore canal, and the prestressed steel bundles in the pore canal are protected from being corroded by harmful mediums. The existing grouting device and the grouting method are very simple, the grouting device comprises a high-pressure pump and a high-pressure pipe, the high-pressure pump directly injects slurry into the prestressed pore canal through the high-pressure pipe, and in the grouting process, the prestressed pore canal is unevenly and compactly after grouting because gas is reserved in the pore canal. In addition, in the grouting process and after grouting, the sensor cannot be installed because of the influence of a grouting device and a grouting medium, so that the stress change of the prestress steel beam cannot be monitored in real time, the stress change data of the prestress steel beam cannot be obtained during and after grouting, and a theoretical basis cannot be provided for later prestress loss evaluation and prestress analysis.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides the inverted U-shaped prestress steel beam pouring system for the containment of the nuclear power station, which can ensure that the pouring medium in the prestress pore canal is uniform and compact, can also ensure that the stress change of the prestress steel beam is accurately monitored in real time during and after the oil pouring period, and provides important data basis for the later prestress loss assessment and prestress analysis.
In order to achieve the above purpose, the application adopts the technical scheme that:
the application provides an inverted U-shaped prestress steel beam pouring system for a containment vessel of a nuclear power station, which comprises two sets of high-pressure pouring pump assemblies and two sets of steel beam force sensor assemblies, wherein the two sets of steel beam force sensor assemblies are respectively sleeved at two free ends of an inverted U-shaped prestress steel beam, and each set of steel beam force sensor assembly comprises a steel beam force sensor, a lower bearing plate, an upper bearing plate and an oil pouring cap; the upper bearing plate and the lower bearing plate are respectively arranged at the upper end and the lower end of the steel beam force sensor and are connected through connecting pieces, and the upper bearing plate is connected with an embedded bearing plate which is embedded in the building body in advance; the oil filling cap is sleeved at the lower end of the prestress steel beam and is connected with the lower bearing plate; each set of high-pressure perfusion pump assembly comprises a high-pressure perfusion pump and a high-temperature high-pressure oil delivery pipe, one end of the high-temperature high-pressure oil delivery pipe is communicated with the high-pressure perfusion pump, and the other end of the high-temperature high-pressure oil delivery pipe is respectively communicated with an oil filling cap and a prestress pore canal arranged on the periphery of the prestress steel beam.
Further, according to the inverted-U-shaped prestress steel beam pouring system for the containment vessel of the nuclear power station, an oil overflow hole is formed in the top of the prestress pore canal, and an oil bearing groove is formed in the oil overflow hole.
Further, the inverted U-shaped prestress steel beam filling system for the containment vessel of the nuclear power station is characterized in that the top of the prestress pore canal is also provided with an exhaust hole, and the exhaust hole is connected with an exhaust pipe for exhausting the gas in the prestress pore canal.
Further, according to the inverted-U-shaped prestress steel beam pouring system for the containment vessel of the nuclear power station, sealing elements are arranged between the lower bearing plate and the steel beam force sensor and between the upper bearing plate and the steel beam force sensor.
Further, according to the inverted U-shaped prestress steel beam pouring system for the containment vessel of the nuclear power station, the pre-buried bearing plate is provided with an axial hole, and the axial hole is of a bell mouth shape.
Further, according to the inverted-U-shaped prestress steel beam pouring system for the containment vessel of the nuclear power station, the upper bearing plate and the lower bearing plate are provided with axial holes, and the diameters of the axial holes are larger than the outer diameter of the prestress steel beam.
Further, according to the inverted-U-shaped prestress steel beam pouring system for the containment vessel of the nuclear power station, central axes of the pre-buried bearing plate, the upper bearing plate, the steel beam force sensor and the lower bearing plate are respectively overlapped with the central axis of the prestress steel beam.
Further, in the inverted U-shaped prestress steel bundle pouring system for a containment vessel of a nuclear power station, the oil inlet ends of the two high-temperature and high-pressure oil delivery pipes are respectively provided with a valve N and a valve N ', the oil outlet ends of the two high-temperature and high-pressure oil delivery pipes are respectively provided with a valve C and a valve C ', the air outlet of the two air exhaust pipes are respectively provided with a valve B and a valve B ', and the oil overflow hole at the top of the prestress pore canal is provided with a valve H.
The application also provides a method for pouring the anti-corrosion lubricating oil into the inverted U-shaped prestress steel beam, which comprises the following steps:
1) Opening all valves in the perfusion system;
2) Starting two high-pressure perfusion pumps, and simultaneously slowly pumping anti-corrosion lubricating oil;
3) Starting filling from valve C and valve C ', closing valve A and valve A'; after the slurry is discharged from the valve B and the valve B ', the valve B and the valve B' are closed; opening the valve A and the valve A ', and simultaneously filling from the valve A, the valve C and the valve A ' and the valve C ';
4) Stopping pumping when the filling oil in the oil bearing groove overflows to reach 2/3 of the height of the oil bearing groove body, and closing the valve N and the valve N';
5) Removing all valve handles in the pouring system;
6) And (5) finishing the pouring work.
Further, according to the method for pouring the anti-corrosion lubricating oil, after the pouring work is finished, the anti-corrosion lubricating oil accumulated in the high-pressure pouring pump body, the high-temperature high-pressure oil pumping pipeline and the high-temperature high-pressure oil conveying pipeline is cleaned in time; and (5) after the oil bearing groove is filled and completely solidified, removing the oil bearing groove, and closing the valve H.
The beneficial technical effects of the application are as follows:
(1) According to the pouring system, the two high-pressure pouring pump assemblies are arranged, anti-corrosion lubricating oil is poured from the two free ends of the inverted U-shaped prestress steel beam respectively, gas in the prestress pore canal is discharged before formal oil pouring, and oil pouring is stopped by taking the height of paraffin oil in the oil bearing groove as a standard in the oil pouring process, so that uniform and compact paraffin oil pouring in the prestress pore canal is ensured, no cavity exists in the prestress pore canal, the prestress steel beam is not corroded, and the service life of the prestress steel beam is prolonged.
(2) According to the pouring system, the steel beam force sensor assembly is arranged, so that prestress can be monitored on the prestress steel beam during and after the oil pouring period, stress change data of the prestress steel beam are obtained, and important data basis is provided for later prestress loss evaluation and prestress analysis. The application can improve the stress state of the prestress steel beam, reduce friction loss and ensure the accuracy of monitoring data during and after the oil filling period because the filling medium is anti-corrosion lubricating oil.
(3) The perfusion method is simple to operate and high in controllability.
Drawings
FIG. 1 is a schematic diagram of the perfusion system of the present application;
FIG. 2 is an installation view of the steel beam force sensor assembly of the present application;
FIG. 3 is a schematic view of the arrangement of the bi-directional ultrasonic probe of the present application within a pre-stressed tunnel or oil cap;
fig. 4 is a top view of fig. 3.
In the figure:
1-high pressure infusion pump assembly
11-high pressure filling pump 12-high pressure air pipe 13-high temperature high pressure pumping pipe 14-high temperature high pressure oil delivery pipe 15-filling hopper
2-steel beam force sensor assembly
21-a steel beam force sensor 22-a lower bearing plate 23-an upper bearing plate
24-oil filling cap
3-prestressed duct 4-prestressed steel bundle 5-pre-buried bearing plate 6-prestressed anchorage
7-filling hole 8-exhaust pipe 9-oil bearing groove
10-ultrasonic detection device
101-ultrasonic receiver 102-driver 103-bubble 104-concrete 105-
Prestressed duct wall
Detailed Description
The following describes the embodiments of the present application in further detail with reference to the accompanying drawings.
It is noted that the terms "first," "second," and the like in the description, claims, and drawings of the present application are used for distinguishing between similar objects and not for describing a particular sequential or chronological order, and that the data so used may be interchanged where appropriate so that embodiments of the present application described herein may be implemented in other sequences than those illustrated or described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
As shown in fig. 1 and 2, the application provides an inverted U-shaped prestress steel beam pouring system for a containment vessel of a nuclear power station, which comprises two sets of high-pressure pouring pump assemblies 1, two sets of steel beam force sensor assemblies 2, two pre-buried bearing plates 5, two exhaust pipes 8 and an oil bearing groove 9.
Two sets of steel beam force sensor assemblies 2 are respectively sleeved at two free ends of the inverted U-shaped prestress steel beam 4, and each set of steel beam force sensor assembly comprises a steel beam force sensor 21, a lower bearing plate 22, an upper bearing plate 23 and an oil filling cap 24. The steel beam force sensor 21 is sleeved on the periphery of the prestress steel beam 4, and the upper bearing plate 23 and the lower bearing plate 22 are respectively sleeved on the prestress steel beam 4 at the upper end and the lower end of the steel beam force sensor 21 and are connected through connecting pieces, and the connecting pieces are preferably connected through screws. The upper bearing plate 23 is fixed to the pre-buried bearing plate 5 buried in the building body in advance by bolts, and the lower bearing plate 22 is directly fixed to the pre-set pre-stress anchor 6. The oil filling cap 24 is sleeved at the lower end of the prestress steel beam 4 and is connected with the lower bearing plate 22.
Wherein, pre-buried bearing plate 5 is located upper end and the connection of prestressing force pore of upper bearing plate 23, and pre-buried bearing plate 5 has axial hole, and its axial hole is the horn mouth formula, is convenient for pour into and connect.
The prestress anchorage 6 is positioned at the lower end of the lower bearing plate and is also provided with an axial hole which is sleeved on the prestress steel beam for fixing the prestress steel beam.
The upper bearing plate 23 and the lower bearing plate 22 are provided with axial holes, and the apertures of the axial holes of the upper bearing plate 23 and the lower bearing plate 22 are larger than the outer diameter of the prestress steel beam 4, so that the steel beam force sensor 21 is not damaged when the prestress steel beam is stressed and deformed, and the measurement precision is ensured.
The central axes of the pre-buried bearing plate 5, the upper bearing plate 23, the steel beam force sensor 21, the lower bearing plate 22 and the pre-stress anchor 6 are respectively overlapped with the central axis of the pre-stress steel beam 4 so as to ensure the stability of the whole assembly. In addition, the external dimension of the steel beam force sensor assembly 2 is matched with the prestress steel beam and the on-site tensioning process; the steel beam force sensor component is ensured to keep elastic deformation under full-scale load and 1.25 times of overload working conditions, and no local compression damage or instability exists; meanwhile, the steel beam force sensor assembly meets the requirements of durability such as moisture resistance, dust resistance, corrosion resistance and the like, and ensures the stability and the working performance of the steel beam force sensor assembly in a complex severe environment; meanwhile, the prestress steel beam and the steel beam force sensor have the characteristics of high precision, high temperature resistance and corrosion resistance.
In order to ensure that the perfusion system is free from leakage under high temperature and high pressure, sealing elements are respectively arranged between the upper bearing plate 23 and the embedded bearing plate 5, between the upper bearing plate 23 and the steel beam force sensor 21, and between the lower bearing plate 22 and the steel beam force sensor 21.
The two sets of high-pressure pouring pump assemblies 1 are respectively arranged at two sides of the inverted U-shaped prestress steel beam, and are respectively used for pouring anti-corrosion lubricating oil into the prestress pore canal 3 at the corresponding side. Each set of high-pressure filling pump assembly comprises a high-pressure filling pump 11, a high-pressure air pipe 12, a high-temperature high-pressure oil pumping pipe 13, a high-temperature high-pressure oil conveying pipe 14 and a filling hopper 15. One end of the high-temperature high-pressure pumping pipe 13 is connected with the filling hopper 15, and the other end is connected with the high-pressure filling pump 11; one end of the high-temperature high-pressure oil delivery pipe 14 is communicated with the high-pressure perfusion pump 11, and the other end is respectively communicated with the oil perfusion cap 24 and the prestressed duct 3 (the prestressed duct 3 is provided with a perfusion hole 7, and the high-temperature high-pressure oil delivery pipe 14 is communicated with the prestressed duct 3 through the perfusion hole 7). A high-pressure gas pipe 12 is provided on the high-pressure perfusion pump 11 for supplying high pressure to the high-pressure perfusion pump 11. The pressure of the high-pressure perfusion pump 11 ranges from 0.69 to 6.9bar. The highest bearable temperature of the high-temperature high-pressure oil pumping pipe is 200 ℃, and the highest bearable pressure of the oil pumping pipe is 82bar.
An oil overflow hole is formed in the top of the prestressed duct 3, an oil bearing groove 9 is arranged on the oil overflow hole, and whether the prestressed duct 3 is tightly infused is checked through the oil inlet amount in the oil bearing groove 9.
The top of the prestressed duct 3 is also provided with an exhaust hole, and the exhaust hole is connected with an exhaust pipe 8 for exhausting the gas in the prestressed duct 3 before filling, so that the gas is prevented from being reserved in the prestressed duct 3 in the wax filling process.
In order to control each pipeline during and after the filling period, the oil inlet ends of the two high-temperature high-pressure oil delivery pipes are respectively provided with a valve N and a valve N ', the oil outlet ends of the two high-temperature high-pressure oil delivery pipes are respectively provided with a valve C and a valve C', a valve A and a valve A ', the pipe orifices of the two exhaust pipes are respectively provided with a valve B and a valve B', and the oil overflow hole at the top of the prestressed duct is provided with a valve H.
In addition, the steel beam force sensor is connected with an industrial control host in test or daily management, the industrial control host is used for setting data acquisition frequency and interval period, and carrying out automatic acquisition and control on the stress index of the prestress steel beam, wherein the frequency can be set to be equal interval or fixed time point, the minimum time interval is not less than 1 minute, and the maximum time interval is not more than 7 days. The application can effectively reduce labor cost and provide important data basis for the later stage prestress loss evaluation and prestress analysis.
The perfusion method of the application comprises the following steps:
1. performing tightness inspection on the oil filling duct according to a prestress construction scheme; the inspection method comprises the following steps:
11 closing all valves in the system, and inflating and pressurizing the prestressed pore canal until the pressure reaches 4bar, and stopping pressurizing;
12 closing the pressurization valve, and simultaneously monitoring the pressure change in the prestressed pore canal, wherein the tightness of the oil filling pore canal is considered to be good if the pressure drops to be within 0.5bar within 5 minutes;
2. heating the anti-corrosion lubricating oil, and pouring when the anti-corrosion lubricating oil is heated to 80-160 ℃;
3. opening all valves in the perfusion system;
4. simultaneously starting two high-pressure pouring pumps, slowly pumping anti-corrosion lubricating oil in a pouring hopper at the same speed, ensuring the consistency of pouring speeds at two sides as much as possible, keeping the pressure at 2-3bar at the moment, and ensuring the consistency of the pouring speeds by controlling the pressure value;
5. starting filling from the valve C and the valve C ', closing the valve A and the valve A ', closing the valve B and the valve B ' after slurry is discharged from the valve B and the valve B ', opening the valve A and the valve A ', and simultaneously filling from the valve A, the valve C and the valve A ' and the valve C ';
6. stopping pumping when the anti-corrosion lubricating oil filled in the oil bearing groove overflows and reaches 2/3 of the height of the oil bearing groove body; measuring the temperature of an oil outlet of the high-pressure filling pump, and recording; closing the valve N and the valve N';
7. removing all valve handles in the pouring system;
8. after the pouring operation is finished, the anti-corrosion lubricating oil stored in the high-pressure pouring pump body, the high-temperature high-pressure oil pumping pipeline and the high-temperature high-pressure oil conveying pipeline should be cleaned in time so as to avoid the influence on the next pouring after cooling and solidification; and after the paraffin is poured into the oil bearing groove to be completely solidified, the oil bearing groove is removed, and the valve H is closed.
9. Detecting the uniformity and the compactness of the prestress pore canal and the infusion of the oil filling cap by the bidirectional ultrasonic detection device 10; before detection, the bidirectional ultrasonic detection device 10 is pre-buried in an oil filling cap or a pre-stress duct.
Firstly, detecting an oil filling cap, taking any three sections of the oil filling cap, respectively detecting bubbles of each section, and if the detected bubble area of the section is within 10% of the total area, considering that the oil filling compactness and uniformity of the oil filling cap area reach the standard;
secondly, detecting the prestressed duct, arranging detection points at the arch starting position of the dome of the prestressed duct and the bottom of the vertical section of the prestressed duct, and if the bubble area of each detection section is within 10% of the total area, considering that the wax filling compactness and uniformity of the area in the prestressed duct reach the standard.
Now, description will be made of a pre-buried type bidirectional ultrasonic detection device and a set position:
the pre-buried bi-directional ultrasound probe 10 includes an ultrasound receiver 101 and a driver 102, as shown in fig. 3-4. In the horizontal plane of the detection point, embedding the driver 102 into the prestressed duct 3, and not contacting the prestressed steel bundle 4 to excite ultrasonic waves; the ultrasonic receiver 101 is embedded in the concrete 104 outside the prestressed duct wall 105 to receive ultrasonic signals generated by the driver 102, and performs time domain analysis and time frequency analysis on the ultrasonic signals to analyze the size and position of the bubbles 103. The area of each detection section bubble is within 10% of the total area, and the compactness and uniformity of the oil poured into the pore canal are considered to reach the standard.
The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto. Those skilled in the art can make equivalent substitutions or changes according to the technical scheme and the inventive concept disclosed by the application, and the obtained technical scheme is covered in the protection scope of the application.
Claims (10)
1. The utility model provides a be used for nuclear power station containment to fall U-shaped prestressing force steel bundle filling system, includes two sets of high pressure filling pump assembly (1) and two sets of steel beam force sensor assembly (2), and two sets of steel beam force sensor assembly (2) overlap respectively and establish at two free ends of falling U-shaped prestressing force steel bundle (4), characterized by: each set of steel beam force sensor assembly (2) comprises a steel beam force sensor (21), a lower bearing plate (22), an upper bearing plate (23) and an oil filling cap (24); the upper bearing plate (23) and the lower bearing plate (22) are respectively arranged at the upper end and the lower end of the steel beam force sensor (21) and are connected through connecting pieces, and the upper bearing plate (23) is connected with the embedded bearing plate (5) embedded in the building body; the oil filling cap (24) is sleeved at the lower end of the prestress steel beam (4) and is connected with the lower bearing plate (22); each set of high-pressure perfusion pump assembly comprises a high-pressure perfusion pump (11) and a high-temperature high-pressure oil delivery pipe (14), one end of the high-temperature high-pressure oil delivery pipe (14) is communicated with the high-pressure perfusion pump (11), and the other end of the high-temperature high-pressure oil delivery pipe is respectively communicated with an oil filling cap (24) and a prestress pore canal (3) arranged on the periphery of the prestress steel beam (4).
2. The inverted-U-shaped prestressed steel bundle injection system for a containment vessel of a nuclear power plant as recited in claim 1, wherein: an oil overflow hole is formed in the top of the prestressed duct (3), and an oil receiving groove (9) is formed in the oil overflow hole.
3. The inverted U-shaped prestressed steel bundle injection system for a containment vessel of a nuclear power plant as claimed in claim 2, wherein: the top of the prestressed duct (3) is also provided with an exhaust hole, and the exhaust hole is connected with an exhaust pipe (8) for exhausting the gas in the prestressed duct (3).
4. A containment vessel inverted U-shaped prestressed steel bundle injection system for a nuclear power plant as claimed in any one of claims 1-3, wherein: sealing elements are arranged between the lower bearing plate (22) and the steel beam force sensor (21) and between the upper bearing plate (23) and the steel beam force sensor (21).
5. The inverted-U-shaped prestress steel beam filling system for a containment of a nuclear power plant as claimed in claim 4, wherein: the embedded bearing plate (5) is provided with an axial hole, and the axial hole is bell mouth-shaped.
6. The inverted-U-shaped prestress steel beam filling system for a containment of a nuclear power plant as recited in claim 5, wherein: the upper bearing plate (23) and the lower bearing plate (22) are provided with axial holes, and the apertures of the axial holes are larger than the outer diameter of the prestress steel beam (4).
7. The inverted-U-shaped prestress steel beam filling system for a containment of a nuclear power plant as set forth in claim 6, wherein: the central axes of the pre-buried bearing plate (5), the upper bearing plate (23), the steel beam force sensor (21) and the lower bearing plate (22) are respectively overlapped with the central axis of the pre-stress steel beam (4).
8. A containment vessel inverted U-shaped prestressed steel bundle injection system for a nuclear power plant as claimed in any one of claims 1-7, wherein: the oil inlet ends of the two high-temperature high-pressure oil delivery pipes (14) are respectively provided with a valve N and a valve N ', the oil outlet ends of the two high-temperature high-pressure oil delivery pipes (14) are respectively provided with a valve C and a valve C ', the pipe orifices of the two exhaust pipes (8) are respectively provided with a valve B and a valve B ', and the oil overflow holes at the tops of the prestressed pore channels (3) are provided with a valve H.
9. A method of priming a corrosion resistant lubricant using a priming system as claimed in any one of claims 1 to 8, comprising the steps of:
1) Opening all valves in the perfusion system;
2) Starting two high-pressure perfusion pumps, and simultaneously slowly pumping anti-corrosion lubricating oil;
3) Starting filling from valve C and valve C ', closing valve A and valve A'; after the slurry is discharged from the valve B and the valve B ', the valve B and the valve B' are closed; opening the valve A and the valve A ', and simultaneously filling from the valve A, the valve C and the valve A ' and the valve C ';
4) Stopping pumping when the filling oil in the oil bearing groove overflows to reach 2/3 of the height of the oil bearing groove body, and closing the valve N and the valve N';
5) Removing all valve handles in the pouring system;
6) And (5) finishing the pouring work.
10. The perfusion method of claim 9, wherein: after the pouring work is finished, timely cleaning anti-corrosion lubricating oil accumulated in the high-temperature high-pressure oil pumping pipeline and the high-temperature high-pressure oil conveying pipeline in the high-pressure pouring pump body; and (5) pouring anti-corrosion lubricating oil into the oil bearing groove to be completely solidified, dismantling the oil bearing groove, and closing the valve H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310876149.5A CN116905813B (en) | 2023-07-17 | 2023-07-17 | Inverted U-shaped prestress steel beam pouring system and method for containment vessel of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310876149.5A CN116905813B (en) | 2023-07-17 | 2023-07-17 | Inverted U-shaped prestress steel beam pouring system and method for containment vessel of nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116905813A true CN116905813A (en) | 2023-10-20 |
| CN116905813B CN116905813B (en) | 2024-06-14 |
Family
ID=88356026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310876149.5A Active CN116905813B (en) | 2023-07-17 | 2023-07-17 | Inverted U-shaped prestress steel beam pouring system and method for containment vessel of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116905813B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2545130A1 (en) * | 1983-04-27 | 1984-11-02 | Precontrainte Ste Fse | Device for anchoring a prestressing cable at an intermediate point of a concrete structure |
| DE19629485A1 (en) * | 1996-07-12 | 1998-01-22 | Geotron Elektronik Rolf Kromph | Ultrasonic measurement of concrete compressive strength to determine time for demoulding setting concrete |
| JPH1054140A (en) * | 1996-08-09 | 1998-02-24 | Hihakai Kensa Kk | Filled state inspecting method for grout |
| CN1457934A (en) * | 2002-05-12 | 2003-11-26 | 柳州市建筑机械总厂 | Coating device for anti-corrosion layer of anti-corrosion prestressed twisted steel wire |
| JP2008144449A (en) * | 2006-12-08 | 2008-06-26 | Scr Corporation:Kk | Grout filling method in sheath for inserting PC tension material in vertical direction |
| JP2010095880A (en) * | 2008-10-15 | 2010-04-30 | Toda Constr Co Ltd | Method for treating concrete structure |
| CN102877415A (en) * | 2012-10-26 | 2013-01-16 | 上海市城市建设设计研究总院 | Ultra-high-difference, ultra-long and ultra-large-tonnage prestress pipeline grouting method and herring-bone pipe bundle |
| CN102930906A (en) * | 2012-11-06 | 2013-02-13 | 沈阳建筑大学 | Nuclear reactor sandwich containment |
| CN103321420A (en) * | 2013-06-26 | 2013-09-25 | 中国核工业华兴建设有限公司 | Vacuum-assisted grouting device and method for gamma-type prestressed pipes |
| CN103628605A (en) * | 2013-12-12 | 2014-03-12 | 中国建筑标准设计研究院 | Large-span rib type prestressed concrete slab and construction method thereof |
| CN203684688U (en) * | 2013-12-30 | 2014-07-02 | 浙江工业大学 | Post-tensioned prestressed beam whole-process monitoring grouting system |
| WO2016050979A1 (en) * | 2014-10-03 | 2016-04-07 | Vsl International Ag | Tendons grouting with recirculation |
| CN106988536A (en) * | 2017-04-11 | 2017-07-28 | 中国核工业华兴建设有限公司 | Steel beam antirust fueling injection equipment and its fuel injecting method in a kind of prestressed pore passage |
| CN109115878A (en) * | 2018-08-10 | 2019-01-01 | 宁波市交通建设工程试验检测中心有限公司 | A kind of bridge prestress pore channel mud jacking compactness supersonic detection device and its detection method |
| CN112223525A (en) * | 2020-09-19 | 2021-01-15 | 盐城市双强管桩有限公司 | Concrete pile bar inserting equipment and bar inserting method |
| US20220112718A1 (en) * | 2020-10-13 | 2022-04-14 | Tokyo Rope Manufacturing Co., Ltd. | Tendon anchorage and construction method of a pre-stressed concrete structure |
| CN216309300U (en) * | 2021-10-25 | 2022-04-15 | 中冶建筑研究总院有限公司 | Non-contact high-precision laser steel cable force monitoring system |
| CN217560839U (en) * | 2021-12-31 | 2022-10-11 | 江苏法尔胜光电科技有限公司 | Pressure sensor for online monitoring of stress of prestressed tendon |
| JP2023077470A (en) * | 2021-11-25 | 2023-06-06 | 鹿島建設株式会社 | Grout filling method and grout filling structure |
-
2023
- 2023-07-17 CN CN202310876149.5A patent/CN116905813B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2545130A1 (en) * | 1983-04-27 | 1984-11-02 | Precontrainte Ste Fse | Device for anchoring a prestressing cable at an intermediate point of a concrete structure |
| DE19629485A1 (en) * | 1996-07-12 | 1998-01-22 | Geotron Elektronik Rolf Kromph | Ultrasonic measurement of concrete compressive strength to determine time for demoulding setting concrete |
| JPH1054140A (en) * | 1996-08-09 | 1998-02-24 | Hihakai Kensa Kk | Filled state inspecting method for grout |
| CN1457934A (en) * | 2002-05-12 | 2003-11-26 | 柳州市建筑机械总厂 | Coating device for anti-corrosion layer of anti-corrosion prestressed twisted steel wire |
| JP2008144449A (en) * | 2006-12-08 | 2008-06-26 | Scr Corporation:Kk | Grout filling method in sheath for inserting PC tension material in vertical direction |
| JP2010095880A (en) * | 2008-10-15 | 2010-04-30 | Toda Constr Co Ltd | Method for treating concrete structure |
| CN102877415A (en) * | 2012-10-26 | 2013-01-16 | 上海市城市建设设计研究总院 | Ultra-high-difference, ultra-long and ultra-large-tonnage prestress pipeline grouting method and herring-bone pipe bundle |
| CN102930906A (en) * | 2012-11-06 | 2013-02-13 | 沈阳建筑大学 | Nuclear reactor sandwich containment |
| CN103321420A (en) * | 2013-06-26 | 2013-09-25 | 中国核工业华兴建设有限公司 | Vacuum-assisted grouting device and method for gamma-type prestressed pipes |
| CN103628605A (en) * | 2013-12-12 | 2014-03-12 | 中国建筑标准设计研究院 | Large-span rib type prestressed concrete slab and construction method thereof |
| CN203684688U (en) * | 2013-12-30 | 2014-07-02 | 浙江工业大学 | Post-tensioned prestressed beam whole-process monitoring grouting system |
| WO2016050979A1 (en) * | 2014-10-03 | 2016-04-07 | Vsl International Ag | Tendons grouting with recirculation |
| CN106988536A (en) * | 2017-04-11 | 2017-07-28 | 中国核工业华兴建设有限公司 | Steel beam antirust fueling injection equipment and its fuel injecting method in a kind of prestressed pore passage |
| CN109115878A (en) * | 2018-08-10 | 2019-01-01 | 宁波市交通建设工程试验检测中心有限公司 | A kind of bridge prestress pore channel mud jacking compactness supersonic detection device and its detection method |
| CN112223525A (en) * | 2020-09-19 | 2021-01-15 | 盐城市双强管桩有限公司 | Concrete pile bar inserting equipment and bar inserting method |
| US20220112718A1 (en) * | 2020-10-13 | 2022-04-14 | Tokyo Rope Manufacturing Co., Ltd. | Tendon anchorage and construction method of a pre-stressed concrete structure |
| CN216309300U (en) * | 2021-10-25 | 2022-04-15 | 中冶建筑研究总院有限公司 | Non-contact high-precision laser steel cable force monitoring system |
| JP2023077470A (en) * | 2021-11-25 | 2023-06-06 | 鹿島建設株式会社 | Grout filling method and grout filling structure |
| CN217560839U (en) * | 2021-12-31 | 2022-10-11 | 江苏法尔胜光电科技有限公司 | Pressure sensor for online monitoring of stress of prestressed tendon |
Non-Patent Citations (2)
| Title |
|---|
| 唐加俊;邹春霞;薛慧君;牛德元;郑新;赵泉;武军: "双掺合料模袋混凝土的孔隙特征研究", 硅酸盐通报, no. 007, 31 December 2019 (2019-12-31), pages 2274 - 2280 * |
| 林轩;张平民;尹周谰;陈启元;: "Study on Preparation and Properties of La_2O_3/MC Nylon Nanocomposites", JOURNAL OF RARE EARTHS, no. 06, 30 December 2005 (2005-12-30), pages 44 - 48 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116905813B (en) | 2024-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110779811A (en) | Rainfall seepage and blasting vibration coupling simulation soft rock shear rheology test system | |
| CN107917839B (en) | Test system and method for testing and evaluating composite bearing performance of tunnel anchoring surrounding rock | |
| CN107436261A (en) | A kind of PCCP hydraulic test of pipeline method | |
| CN102031874B (en) | Intelligent type synchronous prestress tensioning system | |
| CN108333109B (en) | Device and method for monitoring internal cracks in concrete structures | |
| CN115417290A (en) | Steel lining module construction method, hoisting tool and limiting tool | |
| CN106596290B (en) | Rock mass discontinuity field hydraulic couples direct shear test constructional device and construction method | |
| CN202217513U (en) | Pre-embedded support device for pressure vessel insulation layer in nuclear power plant | |
| CN110955276A (en) | Intelligent Automatic Circulation Control System for Mass Concrete Cooling Water | |
| CN216893150U (en) | An intelligent semi-grouting sleeve that can monitor the changing state of grouting material and steel bars at the same time | |
| Bai et al. | Structural condition monitoring of wind turbine foundations | |
| CN116905813B (en) | Inverted U-shaped prestress steel beam pouring system and method for containment vessel of nuclear power station | |
| CN201865358U (en) | Intelligent synchronous prestress tensioning system | |
| CN113668624B (en) | Device and method for testing waterproof performance of assembled comprehensive pipe rack node | |
| CN216207182U (en) | Polyurethane expansibility testing arrangement | |
| CN204202977U (en) | A kind of prestressed stretch-draw test unit for prestressed U aqueduct | |
| CN111307111A (en) | Daily evaluation device and method for static level system | |
| CN201660973U (en) | Concrete post-pouring belt pre-sealing air exhaust structure | |
| CN114108632A (en) | Concrete construction method | |
| CN118794784A (en) | A combined multi-disc anchor bolt structure and pull-out bearing capacity test system and pull-out bearing capacity detection method | |
| CN209260585U (en) | A strengthening system for debonding and voiding of concrete-filled steel tube arch bridges | |
| CN111997369B (en) | Prestressed long-distance large-diameter multi-curvature channel vacuum grouting device and grouting method | |
| CN211122361U (en) | A shear rheological test device for simulating the coupling of rainfall seepage and blasting vibration | |
| CN205192860U (en) | PCCP finished tube external pressure check out test set | |
| CN116296844A (en) | A test device and method for testing the fracture performance of hydraulic concrete under osmotic dissolution |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |