CN210288508U - Device for monitoring leakage of sealing belt between immersed tube tunnel pipe joints - Google Patents
Device for monitoring leakage of sealing belt between immersed tube tunnel pipe joints Download PDFInfo
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- CN210288508U CN210288508U CN201920642048.0U CN201920642048U CN210288508U CN 210288508 U CN210288508 U CN 210288508U CN 201920642048 U CN201920642048 U CN 201920642048U CN 210288508 U CN210288508 U CN 210288508U
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- 238000007789 sealing Methods 0.000 title claims abstract description 212
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000012806 monitoring device Methods 0.000 claims description 31
- 239000003566 sealing material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 6
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 208000032750 Device leakage Diseases 0.000 abstract 1
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- 230000007123 defense Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a device that monitoring immersed tube tunnel internode sealing strip leaked, sealed through carrying out inside and outside dual sealing strip to immersed tube tunnel, by the airtight cavity that immersed tube tunnel tip interface, external seal area and internal seal area formed, carry out pressure monitoring to airtight cavity from the inside internal seal area surface in immersed tube tunnel, further, carry out pressure linear increase and sudden change monitoring, can accurately monitor sealing device's leakage in detecting the center. The beneficial effects are as follows: the sealing cavity is externally monitored, so that the design cost and the manufacturing cost of the sealing strip are saved, the sealing and monitoring structure is simplified, and the sealing performance of the segment sealing structure is enhanced; the same inner sealing belt is designed by adopting a multi-structure pressure conduction component, and the unidirectional linear change and nonlinear sudden change of the pressure value are monitored, so that the accuracy degree of the monitoring result is enhanced; the timeliness and the safety of monitoring are improved; the construction concept of resource saving and environmental protection is met; the engineering cost is saved.
Description
Technical Field
The utility model relates to a monitoring field is revealed to the sealing member between the tube coupling, especially relates to a device that monitoring immersed tube tunnel tube inter-coupling sealing strip leaked.
Background
The water resistance of joints of tunnels by immersed tube method is very important. At present, two water stop belts of GINA and OMEGA are generally adopted to play the role of water prevention of the pipe joint. The GINA type rubber waterstop is a main waterproof component of the pipe joint connector and is also a first waterproof line of the pipe joint connector, and the immersed tube tunnel is externally sealed. The OMEGA type rubber waterstop is a second defense line for sealing the pipe joint and is used for internally sealing the immersed tunnel. However, since the GINA and OMEGA water stops mainly adopt a forced sealing structure, the sealing material is deformed by pre-tightening extrusion to realize sealing, the requirement on the performance of the sealing material is very high, the plastic deformation of the sealing material is large, the resilience performance in the later period is reduced, the sealing failure is easily caused, the leakage of the immersed tube joint is caused, and once the leakage of the immersed tube joint is caused, if the leakage cannot be timely detected and corresponding measures are taken, the huge economic loss is caused, the life safety of personnel can be harmed, and the serious threat to the marine ecological environment can be generated. The existing sealing belt monitoring devices are all integrated with a sealing structure or communicated with a closed space, and the leakage amount of the sealing belt monitoring devices is measured after leakage occurs. However, the complexity of the segment structure is increased by the integrated design or the communicated design, the sealing performance of the tunnel is easily reduced, the design and manufacturing cost is also increased, in the immersed tube tunnel engineering, accumulated water, dust or other impurities often exist in the immersed tube joint along with the passage of time, the sealing performance is easily reduced, and the maintenance cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device that monitoring immersed tube tunnel internode sealing strip leaked to overcome the above-mentioned not enough that prior art exists.
Will realize through following technical scheme the utility model discloses:
the device comprises two adjacent sections of immersed tube tunnel end connectors, an outer sealing belt, an inner sealing belt and a closed cavity formed by the two adjacent sections of immersed tube tunnel end connectors, the outer sealing belt and the inner sealing belt, wherein the outer sealing belt and the inner sealing belt are arranged in a seam between the two adjacent sections of immersed tube tunnel end connectors, the outer sealing belt is made of elastic sealing materials and matched with the pipe body connector of an immersed tube tunnel at one side to be extruded with the pipe connector of an immersed tube tunnel at the other side to form an outer sealing structure, the inner sealing belt is a main pressure-bearing sealing structure and made of elastic sealing materials and respectively and tightly attached to the two adjacent sections of immersed tube tunnel end connectors to form an inner sealing structure, the inner sealing structure is a pressure-sensitive sealing structure, and the outer surface of the inner sealing belt, namely the inner sealing belt, faces the inner surface of the immersed tube tunnel and is in a seam shape with the two adjacent sections of immersed tube tunnel end connectors inside the immersed tube tunnel The outer surface of the inner sealing belt is the bottom surface of the groove, the sealing monitoring device is arranged inside the immersed tube tunnel, a pressure sensor of the sealing monitoring device is in pressure contact with the outer surface of the inner sealing belt through a pressure conduction component, gas is filled in the sealed cavity to apply pre-pressing, the pre-pressing pressure is higher than the internal air pressure of the immersed tube tunnel and lower than the external seawater pressure of the immersed tube tunnel, the sealing monitoring device is connected with a power supply, and the signal amplifier and the signal converter can amplify and convert an electric signal into a corresponding pressure value and output the corresponding pressure value.
The contact part of the pressure conduction part and the outer surface of the inner sealing belt is of a surface structure.
The outer surface of the inner sealing belt protrudes towards the interior of the immersed tube tunnel, and the contact surface of the pressure conduction part, which is in surface contact with the outer surface of the inner sealing belt, is arc-shaped and is matched with the outer surface of the inner sealing belt.
And a transition cushion layer is arranged between the pressure conduction part and the outer surface of the inner sealing belt and is matched with the outer surface of the inner sealing belt.
The pressure conducting part is adjustable in length.
The pressure conduction part consists of a fixing rod and a contact rod, one end of the fixing rod is fixedly connected with the sealing monitoring device, the other end of the fixing rod is connected with the contact rod, one end of the contact rod is in pressure contact with the outer surface of the inner sealing belt, the other end of the contact rod is connected with the fixing rod, and the joint of the fixing rod and the contact rod is mutually matched to form a structure capable of adjusting the whole length of the pressure conduction part.
The adjustable part of the overall length of the pressure conducting part is a mechanical screw part.
The adjustable part of the whole length of the pressure conduction part is a piston structure, a piston pipe of the piston structure is fixedly arranged on a fixed rod/a contact rod, the contact rod/the fixed rod is a piston, liquid is filled in a sealing cavity of the piston sleeve structure during installation, and the pressure between the pressure conduction part and the outer surface contact surface of the inner sealing belt reaches a preset pressure value and is sealed.
The pressure conduction part also comprises an intermediate connecting part, one end of the fixing rod is fixedly connected with the sealing monitoring device, the other end of the fixing rod is in a concave shape, a concave-shaped opening part extends to the contact rod, a concave-shaped concave part is in pressure contact with the intermediate connecting part, one end of the contact rod is in pressure contact with the outer surface of the inner sealing strip, the other end of the contact rod is in a concave shape, the concave-shaped opening part extends to the fixing rod, the concave-shaped concave part is in pressure contact with the intermediate connecting part, the intermediate connecting part is a rubber bag, and gas/liquid/colloid is filled in the rubber bag during use, so that the pressure between the pressure conduction part and the outer.
The sealing monitoring device can respectively convert and amplify pressure value signals of the two pressure sensors and respectively transmit the pressure value signals to a monitoring center, the inner sealing belt is an OMEGA sealing belt, one of the pressure conduction part contact parts is of a surface structure and is in pressure contact with the outer surface of the inner sealing belt, when the expansion deformation of the inner sealing belt is increased, the pressure direction between the inner sealing belt bulge part and the pressure conduction part is unchanged, the other pressure conduction part is of a long-handle crescent shape, the distance between two ends of the long-handle crescent-shaped opening part is smaller than the inner diameter of the crescent shape, two ends of the crescent-shaped opening part are in pressure contact with the inner sealing belt bulge part and are clamped on the upper part of the bulge part, and when the expansion deformation of the inner sealing belt is increased, the relative displacement between the bulging portion and the pressure-transmitting member is increased, a portion of the bulging portion that does not receive the pressure of the pressure-transmitting member contact portion can enter the inside of the crescent-shaped portion of the pressure-transmitting member, and the bulging portion and the pressure-transmitting member can slide relative to each other, and the bulging portion can continue to expand inside the crescent-shaped portion.
After the technical scheme is adopted, the invention has the following beneficial effects:
(1) the sealing cavity is externally monitored, so that the design cost and the manufacturing cost of the sealing strip are saved, the sealing and monitoring structure is simplified, and the sealing performance of the segment sealing structure is enhanced;
(2) the same inner sealing belt is designed by adopting a multi-structure pressure conduction component, and the unidirectional linear change and nonlinear sudden change of the pressure value are monitored, so that the accuracy degree of the monitoring result is enhanced;
(3) the timeliness and the safety of monitoring are improved;
(4) the construction concept of resource saving and environmental protection is met;
(5) the construction and installation are simple and convenient, the later maintenance cost is low, and the engineering cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an operating condition of a device for monitoring leakage of a sealing strip between pipe joints of a immersed tunnel according to the present invention;
FIG. 2 is a schematic view of a second working condition of the device for monitoring leakage of the sealing tape between the tube joints of the immersed tube tunnel of the present invention;
fig. 3 is the utility model discloses a device theory of operation schematic diagram that the monitoring immersed tube tunnel internode sealing tape leaks.
The figures are labeled as follows:
1. an immersed tunnel end interface; 3. an outer sealing band; 4. an inner sealing band; 5. sealing the cavity; 6. a groove; 7. a seal monitoring device; 8. a pressure sensor; 9. a pressure-conducting member; 10. a monitoring center; 11. a power source; 12. a signal amplifier; 13. a signal converter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The device for monitoring the leakage of the sealing tape between the tube joints of the immersed tube tunnel according to the present invention will be described with reference to the accompanying drawings (fig. 1-3).
As shown in fig. 1, the utility model provides a device operating mode one for monitoring the leakage of a sealing belt between immersed tube tunnel pipe joints, the immersed tube tunnel pipe joints comprise two adjacent immersed tube tunnel end part interfaces 1, an outer sealing belt 3, an inner sealing belt 4, and a closed cavity 5 formed by the two adjacent immersed tube tunnel end part interfaces 1, the outer sealing belt 3 and the inner sealing belt 4 are arranged in the joint between the two adjacent immersed tube tunnel end part interfaces 1, the outer sealing belt 3 is made of elastic sealing material, is matched with one side immersed tube tunnel pipe body interface, is extruded with the other side immersed tube tunnel interface, forms an outer sealing structure, is a main pressure bearing sealing structure, the inner sealing belt 4 is made of elastic sealing material, is tightly attached with the two adjacent immersed tube tunnel end part interfaces 1 respectively, forms an inner sealing structure, the inner sealing structure is a pressure sensitive sealing structure, a groove 6 is formed between the surface of the outer surface of the inner sealing strip 4 facing the interior of the immersed tube tunnel and the joint of the end part interfaces 1 of two adjacent immersed tube tunnels in the immersed tube tunnel, the outer surface of the inner sealing strip 3 is the bottom surface of the groove 6, the sealing monitoring device 7 comprises a signal amplifier 12 and a signal converter 13, the sealing monitoring device 7 is arranged in the immersed tube tunnel, a pressure sensor 8 of the sealing monitoring device 7 is in pressure contact with the outer surface of the inner sealing strip 4, a gas is filled in the closed cavity 5 to apply pre-pressure, the pre-pressure is higher than the atmospheric pressure in the immersed tube tunnel and lower than the seawater pressure outside the immersed tube tunnel, the sealing monitoring device 7 is connected with a power supply, the pressure sensor 8 converts the pressure into an electric signal, and the electric signal is amplified and converted by the signal amplifier 12 and the signal converter, the amplified electric signals are transmitted to a monitoring center 10 by a wired or wireless signal transmission device;
when the external sealing structure leaks, the internal pressure of the sealed cavity 5 is increased, the internal sealing strip 4 expands, the pressure between the outer surface of the internal sealing strip 4 and the pressure sensor 8 is increased, the pressure sensor 8 converts the pressure into an electric signal, the electric signal is amplified and converted by the sealing monitoring device 7, the amplified electric signal is transmitted to the monitoring center 10 by the wired or wireless signal transmission device, and the monitoring center 10 makes a response decision according to a preset algorithm and pressure change;
when the internal sealing structure leaks, the internal pressure of the sealing cavity 5 is reduced, the internal sealing belt 4 contracts, the pressure between the outer surface of the internal sealing belt 4 and the pressure sensor 8 is increased, the pressure sensor 8 converts the pressure into an electric signal, the electric signal is amplified and converted by the sealing monitoring device 7 through the signal amplifier 12 and the signal converter 13, the amplified electric signal is transmitted to the monitoring center 10 through the wired or wireless signal transmission device, and the monitoring center 10 makes a response decision according to a preset algorithm and pressure change.
The monitoring center 10 also records the change time, duration, change value and decision, and outputs the result.
The monitoring center 10 also calculates and records the difference between the monitoring data of each section of sealing tape of the same immersed tube tunnel in the same time period, monitors the change of the difference, makes a response decision when the difference changes, records the change time, the time length, the change value and the decision, and outputs the result.
The inner sealing strip is an OMEGA sealing strip, the pressure conduction part 9 is in a long-handle crescent shape, the distance between two ends of a crescent-shaped opening part at the front part of the long-handle crescent shape is smaller than the inner diameter of the crescent shape, the two ends of the crescent-shaped opening part are in pressure contact with the bulge part of the inner sealing strip 4 and clamped on the upper part of the bulge part, when the expansion deformation quantity of the inner sealing strip 4 is increased, the bulge part and the pressure conduction part 9 can slide relatively, and the bulge part continues to expand in the crescent shape;
at the initial stage of leakage of the outer sealing band, the amount of expansion deformation of the inner sealing band 4 is small, the pressure between the bulge part and the pressure conduction component 9 is increased, the pressure applied to the two ends of the crescent-shaped opening part forms resultant force, and the resultant force is conducted to the pressure sensor 8 through the pressure conduction component 9 and is reflected as pressure;
as the amount of leakage of the outer seal band 3 increases, the amount of swelling deformation of the inner seal band 4 increases, the relative displacement between the bulge portion and the pressure transmission member 9 increases, the portion of the bulge portion not subjected to the pressure of the contact portion of the pressure transmission member 9 enters the crescent-shaped portion of the pressure transmission member 9, and the pressure between the bulge portion and the pressure transmission member 9 increases to be greater than the frictional force between the outer surface of the inner seal band 4 and the pressure transmission member 9, the bulge portion and the pressure transmission member 9 are slidable relative to each other, the bulge portion continues to swell inside the crescent shape, the pressure direction between the bulge portion and the pressure transmission member 9 changes, the pressure applied to both ends of the crescent-shaped opening portion forms a resultant force, and the resultant force is transmitted to the pressure sensor 8 through the pressure transmission member 9 and is reflected as a tensile force, or as a sudden decrease in pressure.
As shown in fig. 2, the utility model provides a device operating mode two of monitoring immersed tube tunnel internode sealing strip and leaking, the device includes two adjacent sections immersed tube tunnel end interface 1, external seal area 3, interior sealing strip 4 and by two adjacent sections immersed tube tunnel end interface 1, external seal area 3, the airtight cavity 5 that interior sealing strip 4 formed, outer sealing strip 3 and interior sealing strip 4 set up in the seam between two adjacent sections immersed tube tunnel end interface 1, outer sealing strip 3 is made with elastic sealing material, cooperates with one side immersed tube tunnel body interface, extrudees with opposite side immersed tube tunnel interface, forms outside seal structure, for main pressure-bearing seal structure, interior sealing strip 4 is made with elastic sealing material, closely laminates with two adjacent sections immersed tube tunnel end interface 1 respectively, forms inside seal structure, inside seal structure is pressure-sensitive seal structure, the outer surface of the inner sealing strip 4, namely the surface of the inner sealing strip 4 facing the interior of the immersed tube tunnel and the joints of the end connectors 1 of two adjacent immersed tube tunnels in the interior of the immersed tube tunnel form a groove 6, the outer surface of the inner sealing strip 4 is the bottom surface of the groove 6, the sealing monitoring device 7 comprises a signal amplifier 12 and a signal converter 13, the sealing monitoring device 7 is arranged in the interior of the immersed tube tunnel, a pressure sensor 8 of the sealing monitoring device 7 is in pressure contact with the outer surface of the inner sealing strip 4 through a pressure conducting part 9, gas is filled in the closed cavity 5 to apply pre-pressure, the pre-pressure is higher than the air pressure in the interior of the immersed tube tunnel and lower than the seawater pressure outside the immersed tube tunnel, the sealing monitoring device 7 is connected with a power supply 11, and the sealing monitoring device 7 amplifies and converts the electric signal into a corresponding pressure value through the signal amplifier 12, the pressure conducting part 9 is adjustable and lengthened in length.
The contact part of the pressure conducting part 9 and the outer surface of the inner sealing belt 4 can be a surface structure and is in surface contact with the outer surface of the inner sealing belt 4. The arrangement can reduce the abrasion of the contact surface or the cutting or stabbing damage and prolong the service life of the device.
The outer surface of the inner sealing belt 4 protrudes towards the interior of the immersed tube tunnel, and the contact surface of the pressure conduction part 9, which is in surface contact with the outer surface of the inner sealing belt 4, is arc-shaped and is matched with the outer surface of the inner sealing belt 4.
A transition cushion layer is arranged between the pressure conduction part 9 and the outer surface of the inner sealing belt 4, and the transition cushion layer is matched with the outer surface of the inner sealing belt 4. The arrangement can reduce the abrasion or cutting damage of the contact surface and prolong the service life of the device.
The pressure conduction part 9 is adjustable in length, and the specific structure can be any one of the structures which can adjust the length and do not obviously reduce the strength in the prior art such as a mechanical screw, an air bag, hydraulic pressure and a bayonet sleeve. The pressure conduction part 9 can be composed of a fixed rod and a contact rod, one end of the fixed rod is fixedly connected with the sealing monitoring device 7, the other end of the fixed rod is connected with the contact rod, one end of the contact rod is in pressure contact with the outer surface of the inner sealing belt 4, the other end of the contact rod is connected with the fixed rod, and the joint of the fixed rod and the contact rod is mutually matched to form a structure capable of adjusting the whole length of the pressure conduction part 9.
The part capable of adjusting the whole length of the pressure transmission part 9 can also be a piston structure, a piston pipe of the piston structure is fixedly arranged on the fixed rod or the contact rod, the other end of the piston structure is a piston, liquid is filled in a sealing cavity of the piston sleeve structure during installation, and the pressure between the pressure transmission part 9 and the outer surface contact surface of the inner sealing belt 4 reaches a preset pressure value and is sealed.
The pressure conduction part 9 comprises dead lever, contact lever and intermediate junction spare, dead lever one end and sealed monitoring devices 7 fixed connection, the other end are the concave surface shape, concave surface shape oral area to the contact lever extends, concave surface shape concave part with intermediate junction spare pressure contact, contact lever one end and interior sealing strip 4 surface pressure contact, the other end is the concave surface shape, concave surface shape oral area to the dead lever extends, concave surface shape concave part with intermediate junction spare pressure contact, intermediate junction spare is the rubber bag, fills gas or liquid or colloid in the rubber bag during the use, makes pressure reach preset pressure value between pressure conduction part 9 and the interior sealing strip 4 surface contact surface to it is sealed.
The inner sealing belt 4 is an OMEGA sealing belt, the device comprises two pressure sensors 8 and two pressure conduction parts 9 respectively connected with the two pressure sensors 8, the sealing monitoring device 7 can respectively convert and amplify pressure value signals of the two pressure sensors 8 and respectively transmit the pressure value signals to a monitoring center, one of the pressure conduction parts 9 is of a surface structure and is in pressure contact with the outer surface of the inner sealing belt 4, when the expansion deformation quantity of the inner sealing belt 4 is increased, the pressure direction between the bulge part of the inner sealing belt 4 and the pressure conduction part 9 is unchanged, the other pressure conduction part 9 is of a long-handle crescent shape, the distance between two ends of a crescent opening part of the long-handle crescent shape is smaller than the inner diameter of the crescent shape, the two ends of the crescent opening part are in pressure contact with the bulge part of the inner sealing belt 44 and are clamped on the bulge part, when the amount of swelling deformation of the inner seal tape 4 increases, the relative displacement between the bulging portion and the pressure transmission member 9 increases, a portion of the bulging portion which does not receive the pressure of the contact portion of the pressure transmission member 9 can enter the inside of the crescent-shaped portion of the pressure transmission member 9, and the bulging portion and the pressure transmission member 9 can slide relative to each other, and the bulging portion can continue to swell inside the crescent-shaped portion.
The difference between the first working condition and the second working condition is that the sealing belt is in different leakage conditions.
As shown in fig. 3, the utility model provides a working detection principle of a device for monitoring the leakage of a sealing belt between immersed tube tunnel tube joints.
When the external sealing structure leaks, the internal pressure of the sealed cavity 5 is increased, the internal sealing belt 4 expands, the pressure between the outer surface of the internal sealing belt 4 and the pressure conduction part 9 is increased, the pressure conduction part 9 conducts the pressure to the pressure sensor 8, the pressure sensor 8 converts the pressure into an electric signal, the electric signal is amplified and converted by the sealing monitoring device 7 through the signal amplifier 12 and the signal converter 13, the amplified electric signal is transmitted to the monitoring center 10 through the wired or wireless signal conduction device, and the monitoring center 10 makes a response decision according to a preset algorithm and pressure change;
when the internal sealing structure leaks, the internal pressure of the sealing cavity 5 is reduced, the internal sealing belt 4 contracts, the pressure between the outer surface of the internal sealing belt 4 and the pressure conduction part 9 is reduced, the pressure conduction part 9 conducts the pressure to the pressure sensor 8, the pressure sensor 8 converts the pressure into an electric signal, the electric signal is amplified and converted by the sealing monitoring device 7 through the signal amplifier 12 and the signal converter 13, the amplified electric signal is transmitted to the monitoring center 10 through the wired or wireless signal conduction device, and the monitoring center 10 makes a response decision according to a preset algorithm and pressure change.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a device that monitoring immersed tube tunnel internode sealing strip leaked which characterized in that: the sealing structure comprises two adjacent sections of immersed tube tunnel end connectors (1), an outer sealing strip (3), an inner sealing strip (4) and a sealed cavity (5) formed by the two adjacent sections of immersed tube tunnel end connectors (1), the outer sealing strip (3) and the inner sealing strip (4), wherein the outer sealing strip (3) and the inner sealing strip (4) are arranged in a joint between the two adjacent sections of immersed tube tunnel end connectors (1), the outer sealing strip (3) is made of elastic sealing materials, is matched with one side immersed tube tunnel body connector and is extruded with the other side immersed tube tunnel connector to form an outer sealing structure which is a main pressure-bearing sealing structure, the inner sealing strip (4) is made of elastic sealing materials and is respectively tightly attached to the two adjacent sections of immersed tube tunnel end connectors (1) to form an inner sealing structure which is a pressure-sensitive sealing structure, the outer surface of the inner sealing tape (4), namely the surface of the inner sealing tape (4) facing the interior of the immersed tube tunnel and the joint of the end joints (1) of two adjacent immersed tube tunnels in the interior of the immersed tube tunnel form a groove (6), the outer surface of the inner sealing belt (4) is the bottom surface of the groove (6), the sealing monitoring device (7) is arranged in the immersed tube tunnel, a pressure sensor (8) of the sealing monitoring device (7) is in pressure contact with the outer surface of the inner sealing belt (4) through a pressure conducting part (9), gas is filled in the closed cavity (5) to apply pre-pressing, the pre-pressure is higher than the air pressure inside the immersed tube tunnel and lower than the seawater pressure outside the immersed tube tunnel, the sealing monitoring device (7) is connected with the power supply (11), and the signal amplifier (12) and the signal converter (13) can amplify and convert the electric signals into corresponding pressure values and output the corresponding pressure values.
2. The apparatus according to claim 1, wherein the sealing tape between the tube segments of the immersed tunnel is leaked from the sealing tape between the tube segments of the immersed tunnel, and the apparatus further comprises: the contact part of the pressure conduction part (9) and the outer surface of the inner sealing belt (4) is of a surface structure.
3. The apparatus according to claim 1, wherein the sealing tape between the tube segments of the immersed tunnel is leaked from the sealing tape between the tube segments of the immersed tunnel, and the apparatus further comprises: the outer surface of the inner sealing belt (4) protrudes towards the interior of the immersed tube tunnel, and the contact surface of the pressure conduction part (9) and the outer surface of the inner sealing belt (4) is arc-shaped and is matched with the outer surface of the inner sealing belt (4).
4. The apparatus according to claim 1, wherein the sealing tape between the tube segments of the immersed tunnel is leaked from the sealing tape between the tube segments of the immersed tunnel, and the apparatus further comprises: a transition cushion layer is arranged between the pressure conduction part (9) and the outer surface of the inner sealing belt (4), and the transition cushion layer is matched with the outer surface of the inner sealing belt (4).
5. The apparatus according to claim 1, wherein the sealing tape between the tube segments of the immersed tunnel is leaked from the sealing tape between the tube segments of the immersed tunnel, and the apparatus further comprises: the pressure conducting part (9) is adjustable in length.
6. The apparatus according to claim 1 or 3, wherein the sealing band between the immersed tube tunnel pipe sections is leaked, and the apparatus further comprises: the pressure conduction part (9) is composed of a fixed rod and a contact rod, one end of the fixed rod is fixedly connected with the sealing monitoring device (7), the other end of the fixed rod is connected with the contact rod, one end of the contact rod is in pressure contact with the outer surface of the inner sealing belt (4), the other end of the contact rod is connected with the fixed rod, and the joint of the fixed rod and the contact rod is mutually matched to form a structure capable of adjusting the whole length of the pressure conduction part (9).
7. The apparatus according to claim 1 or 5, wherein the sealing strip between the immersed tube tunnel sections is leaked, and the apparatus further comprises: the adjustable part of the whole length of the pressure conduction part (9) is a mechanical spiral part.
8. The apparatus according to claim 1 or 5, wherein the sealing strip between the immersed tube tunnel sections is leaked, and the apparatus further comprises: the adjustable component of the whole length of the pressure conduction component (9) is a piston structure, a piston tube of the piston structure is fixedly arranged on a fixed rod/a contact rod, the contact rod/the fixed rod is a piston, liquid is filled in a sealing cavity of the piston sleeve structure during installation, and the pressure between the pressure conduction component (9) and the outer surface contact surface of the inner sealing belt (4) reaches a preset pressure value and is sealed.
9. The apparatus according to claim 1 or 4, wherein the sealing strip between the immersed tube tunnel sections is leaked, and the apparatus further comprises: the pressure conduction part (9) further comprises an intermediate connecting part, one end of the fixing rod is fixedly connected with the sealing monitoring device (7), the other end of the fixing rod is in a concave shape, a concave-shaped opening part extends towards the contact rod, a concave-shaped concave part is in pressure contact with the intermediate connecting part, one end of the contact rod is in pressure contact with the outer surface of the inner sealing strip (4), the other end of the contact rod is in a concave shape, the concave-shaped opening part extends towards the fixing rod, the concave-shaped concave part is in pressure contact with the intermediate connecting part, the intermediate connecting part is a rubber bag, gas/liquid/colloid is filled into the rubber bag when the pressure conduction part is used, and the pressure between the pressure conduction part (9) and the outer surface contact.
10. The apparatus according to claim 1 or 4, wherein the sealing strip between the immersed tube tunnel sections is leaked, and the apparatus further comprises: the device comprises two pressure sensors (8) and two pressure conduction components (9) which are respectively connected with the two pressure sensors (8), the sealing monitoring device (7) can respectively convert and amplify pressure value signals of the two pressure sensors (8) and respectively transmit the pressure value signals to a monitoring center (10), the inner sealing belt (4) is an OMEGA sealing belt, the contact part of one pressure conduction component (9) is of a surface structure and is in pressure contact with the outer surface of the inner sealing belt (4), when the expansion deformation quantity of the inner sealing belt (4) is increased, the pressure direction between the bulge part of the inner sealing belt (4) and the pressure conduction component (9) is unchanged, the other pressure conduction component (9) is of a long-handle crescent shape, the distance between two ends of a crescent-shaped opening part of the long-handle crescent shape is smaller than the inner diameter of the crescent shape, and the two ends of the crescent-shaped opening part are in pressure contact with the bulge part of the inner sealing belt (4), when the inner seal band (4) is expanded and deformed by being clamped on the upper part of the bulge part, the relative displacement between the bulge part and the pressure conduction component (9) is increased, the part of the bulge part which is not subjected to the pressure of the contact part of the pressure conduction component (9) can enter the crescent-shaped part of the pressure conduction component (9), the bulge part and the pressure conduction component (9) can slide relatively, and the bulge part can continue to expand in the crescent shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642048.0U CN210288508U (en) | 2019-05-07 | 2019-05-07 | Device for monitoring leakage of sealing belt between immersed tube tunnel pipe joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642048.0U CN210288508U (en) | 2019-05-07 | 2019-05-07 | Device for monitoring leakage of sealing belt between immersed tube tunnel pipe joints |
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