CN112993850A - Pressure cabin under-pressure threading method and threading device for implementing method - Google Patents
Pressure cabin under-pressure threading method and threading device for implementing method Download PDFInfo
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- CN112993850A CN112993850A CN202110304015.7A CN202110304015A CN112993850A CN 112993850 A CN112993850 A CN 112993850A CN 202110304015 A CN202110304015 A CN 202110304015A CN 112993850 A CN112993850 A CN 112993850A
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- pressure
- cable
- partition plate
- threading
- protective cover
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
Abstract
The invention provides a pressure cabin under-pressure threading method and a threading device for implementing the method, wherein the pressure cabin under-pressure threading method comprises the following steps: firstly, removing a waterproof cable joint on a first side, installing a protective cover, and accommodating an old cable on the first side in the protective cover; secondly, removing the waterproof cable joint on the second side, and drawing all the old cables to the second side through the cabin body partition plate; thirdly, a new cable penetrates through the bin body partition plate to reach the inner cavity of the protective cover, and the waterproof cable joint on the second side is fixed on the bin body partition plate; and fourthly, detaching the protective cover, sleeving a waterproof cable joint on the new cable on the first side and fixing the cable joint on the bin body partition plate. The invention can smoothly finish the removal of the old cable and the installation of the new cable, has high operation efficiency, reduces the risk of operators with pressure, and can lighten the intensity of the operators with pressure and the time of the operators with pressure.
Description
Technical Field
The invention relates to the technical field of under-pressure threading, in particular to an under-pressure threading method of a pressure cabin and a threading device for implementing the method.
Background
With the development of economy, the progress of science and technology, the requirements of interconnection and intercommunication, tunnel engineering and rail traffic are increased explosively, and the shield construction method is popularized and applied in more and more projects.
The shield machine is for adapting to various geological conditions, and the storehouse body is pressed in the area (being pressure storehouse) in many places configuration to install electric instrument in the pressure storehouse. Because the demand of special operating mode, when the cable of electrical instrument worn to the normal pressure environment outside the storehouse through storehouse body baffle from the pressure storehouse, required cable can not appear connecting before storehouse body baffle, consequently is after the cable passes the through wires hole on the storehouse body baffle, with metal water joint and the through wires hole threaded connection on the cable again, realize the fixed and sealed between cable and the storehouse body baffle, wherein metal water joint has two, sets up the inside and outside both sides at storehouse body baffle respectively.
In the shield construction process, especially when tunneling for a long time, the electric instrument in the pressure chamber also breaks down, once the electric instrument in the pressure chamber breaks down, the electric instrument is difficult to replace and maintain, for example, how to take the old cable through the chamber partition plate and how to install the new cable through the chamber partition plate, these all need the operating personnel to put into the pressure chamber to carry out the operation under pressure, and the working time is long, the labor intensity is large, and the cost is high. Especially at the in-process of dismouting cable, after metal water joint is whole to be torn open, the compressed gas in the pressure chamber can cause the injury to the operation personnel outside the storehouse, and the risk is higher.
Disclosure of Invention
The invention aims to provide a pressure cabin belt-pressing threading method which can reduce the working time of operation personnel in belt-pressing operation, reduce the labor intensity and the cost, and simultaneously can reduce the damage to the operation personnel outside a cabin and reduce the risk; the invention also aims to provide a threading device for implementing the pressure chamber threading method.
In order to achieve the purpose, the pressure cabin threading method adopts the following technical scheme:
the pressure cabin belt-pressing threading method defines two sides of a cabin body partition plate, one side without pressure is a normal pressure side and is defined as a first side, one side with pressure is a pressure side and is defined as a second side, and the pressure cabin belt-pressing threading method comprises the following steps:
firstly, detaching a waterproof cable joint on a first side from a bin body partition plate, and then installing a protective cover on the first side on the bin body partition plate, so that the protective cover is covered outside a cable threading hole and an old cable on the first side is accommodated in an inner cavity of the protective cover;
secondly, firstly detaching the waterproof cable joints on the second side from the cabin body partition plate, then pulling the old cables on the second side, and drawing all the old cables on the first side to the second side through the cabin body partition plate to realize the detachment of the old cables;
thirdly, installing a new cable from the second side, firstly, penetrating the new cable through the waterproof cable joint on the second side and the bin body partition plate to reach the inner cavity of the protective cover, and then fixing the waterproof cable joint on the second side on the bin body partition plate to realize the fixation and sealing between the new cable on the second side and the bin body partition plate;
and fourthly, detaching the protective cover, sleeving a waterproof cable joint on the new cable on the first side, and fixing the waterproof cable joint on the first side onto the bin body partition plate to realize the fixation and sealing between the new cable on the first side and the bin body partition plate.
The beneficial effects of the above technical scheme are that: in the first step, after the waterproof cable joint on the first side is removed, the protective cover is arranged on the first side and covers the outside of the cable threading hole, so that the first side and the second side can still be isolated, and an old cable on the first side is accommodated in an inner cavity of the protective cover, so that the subsequent removal of the old cable is facilitated; in the second step, the waterproof joint of the cable at the second side is removed, so that the old cable can be pulled at the second side to completely remove the old cable, wherein compressed gas in the pressure chamber is not lost too much due to the existence of the protective cover, and only gas with the volume size of one protective cover is lost, and the protective cover is only used for covering a cable threading hole and accommodating the cable, so that the space is not large, and the gas can not influence the integral pressure of the pressure chamber; in the third step, a new cable can be installed from the second side, and the new cable on the second side is fixed and sealed with the cabin body partition plate through the cable waterproof joint on the second side, so that the sealing performance is ensured; in the fourth step, because the cable water joint of second side has been installed, guaranteed can not leak gas, consequently tear the protection casing down and can install the cable water joint of first side to realize the new cable of first side and the fixed and sealed between the cabin body baffle.
Wherein, if the protection casing is installed in the pressure side, then when tearing open the cable water joint of ordinary pressure side, the gas of certain pressure can be discharged in the protection casing, perhaps if the protection casing is installed in the ordinary pressure side, then when tearing open the protection casing at last, the gas of certain pressure can be discharged in the protection casing, but these gas volumes are few, can not cause the injury to the operation personnel outside the storehouse, have reduced the risk.
In conclusion, the invention can successfully finish the removal of the old cable and the installation of the new cable through the installation of the protective cover and the disassembly and assembly sequence of the normal pressure side cable waterproof connector and the pressure side cable waterproof connector, thereby not only reducing the damage to operators outside the warehouse and reducing the risk, but also reducing the working time of the operators in operation under pressure, lightening the labor intensity and reducing the cost.
Further, in order to reduce the work load of the operating personnel in the pressure cabin and shorten the influence time of the high-pressure environment on the operating personnel, the first side is a normal pressure side, the second side is a pressure side, and the protective cover is used for being installed on the normal pressure side.
In order to achieve the above object, the threading device of the present invention for implementing the above pressure chamber threading method includes:
the protective cover is used for being fixed on the bin body partition plate and covering the outside of the cable threading hole, and the inner cavity of the protective cover forms a wire storage cavity for accommodating a cable.
The beneficial effects of the above technical scheme are that: the protective cover is covered outside the cable threading hole, so that the effect of isolating the normal pressure side from the pressure side is achieved, and the metal waterproof connector is convenient to disassemble; the inner cavity of the protective cover forms a wire storage cavity for accommodating the cable, so that the old cable is convenient to remove and a new cable is convenient to install.
Further, for the manufacturing of convenient protection casing, the protection casing includes protecting tube and shrouding, and the one end and shrouding fixed connection, the other end of protecting tube are used for fixing on storehouse body baffle.
Further, for the fixed connection between convenient protective tube and storehouse body baffle and the shrouding, the both ends of protective tube are provided with the flange respectively, and the protective tube is used for respectively with storehouse body baffle and shrouding fixed connection through flange and fastener.
Furthermore, in order to conveniently release the pressure in the wire storage cavity, the threading device also comprises a deflation valve arranged on the protective cover, and the deflation valve is used for releasing the pressure in the wire storage cavity before the protective cover is detached.
Furthermore, in order to facilitate the manufacturing of the protective pipe and the installation of the air release valve, the protective pipe is a round pipe, and the air release valve is installed on the sealing plate.
Further, in order to guarantee the leakproofness, be provided with first sealed pad between protecting tube and the shrouding, threading device still including being used for setting up the sealed pad of second between protecting tube and storehouse body baffle.
Drawings
Fig. 1 is a partial structural schematic diagram of a shield machine, which is an implementation object of a pressure cabin under-pressure threading method in embodiment 1 of the invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a process diagram of embodiment 1 of the threading method with pressure of the pressure chamber in the invention;
fig. 4 is a process diagram of embodiment 2 of the pressure chamber threading method of the invention.
In the figure: 100-air cushion chamber; 200-bin body partition boards; 201-cable threading hole; 300-a cable; 301-old cable; 302-new cable; 400-waterproof joint of cable in storehouse; 500-waterproof joint of cable outside the warehouse;
1-protective tube in the storehouse; 2-an inner bin sealing plate; 3-a wire storage cavity in the bin; 4-air releasing valve in the bin; 5-a first sealing gasket in the bin; 6-a second sealing gasket in the bin; 7-a first bolt in the bin; 8-a second bolt in the bin;
10-protective pipe outside the storehouse; 20-outer sealing plate of the silo; 30-a storage wire cavity outside the bin; 40-air release valve outside the bin; 50-a first sealing gasket outside the bin; 60-a second sealing gasket outside the bin; 70-a first bolt outside the bin; 80-second bolt outside the bin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The embodiment 1 of the pressure chamber threading method provided by the invention comprises the following steps: as shown in fig. 1, the pressure cabin pressurized threading method in this embodiment is suitable for a shield machine, wherein the pressure cabin is an air cushion cabin 100 of the shield machine, and the air cushion cabin 100 has a cabin body partition 200.
Referring to fig. 2, a cable threading hole 201 is formed in the bin body partition plate 200, the cable 300 passes through the cable threading hole 201, two metal waterproof joints, namely an in-bin cable waterproof joint 400 and an out-bin cable waterproof joint 500, are arranged outside the cable 300, and the two metal waterproof joints are in threaded connection with the cable threading hole 201, so that the cable 300 and the bin body partition plate 200 are fixed and sealed.
As shown in fig. 3, when the pressure cabin threading method in this embodiment is implemented, an external threading device needs to be installed on the normal pressure side, i.e., outside the cabin, and a specific structure of the external threading device is described first below.
Referring to fig. 2 and 3, the outer threading device includes an outer protective cover for fixing on the compartment partition 200 and covering the cable threading hole 201, and an inner cavity of the outer protective cover forms an outer storage cavity 30 for accommodating a cable. For convenience of manufacture, the outer protective cover of the silo comprises an outer protective pipe 10 and an outer sealing plate 20 of the silo, the outer protective pipe 10 is a circular pipe, and the outer threading device further comprises an outer air release valve 40 arranged on the outer sealing plate 20 of the silo. One end of the outer protective pipe 10 of the bin is fixedly connected with the outer sealing plate 20 of the bin, and the other end of the outer protective pipe 10 of the bin is fixed on the bin body partition plate 200, specifically, flanges are respectively arranged at two ends of the outer protective pipe 10 of the bin, one end of the outer protective pipe 10 of the bin is fixedly connected with the outer sealing plate 20 of the bin through the flanges, the outer first bolts 70 of the bin and nuts, and the other end of the outer protective pipe 10 of the bin is fixedly connected with the bin body partition plate 200 through the flanges, the outer second bolts 80. In order to ensure the sealing performance, an outer first sealing gasket 50 is arranged between the outer protective pipe 10 and the outer sealing plate 20, and the outer threading device further comprises an outer second sealing gasket 60 arranged between the outer protective pipe 10 and the cabin body partition plate 200.
As shown in fig. 3, the method for threading the pressure chamber with pressure in this embodiment includes the following steps:
firstly, the waterproof connector 500 of the cable outside the warehouse is detached from the warehouse body partition board 200, then the protective pipe 10 outside the warehouse is installed on the warehouse body partition board 200, of course, the protective pipe 10 outside the warehouse can be installed firstly, and then the waterproof connector 500 of the cable outside the warehouse is detached. The protection pipe 10 outside the warehouse is surrounded outside the cable threading hole 201, then the old cable 301 outside the warehouse is stored in the protection pipe 10 outside the warehouse, finally the closing plate 20 outside the warehouse and the air release valve 40 outside the warehouse are installed, the air release valve 40 outside the warehouse is closed, and the wire storage cavity 30 outside the warehouse is ensured to be in a closed state, as shown in fig. 3 a.
Secondly, firstly, the waterproof connector 400 of the cable in the cabin is detached from the cabin body partition board 200, then the old cable 301 is pulled in the cabin, and the old cable in the wire storage cavity 30 outside the cabin is completely pulled into the cabin through the cabin body partition board 200, so that the old cable 301 is detached, as shown in fig. 3 b.
Thirdly, installing a new cable 302 from the inside of the cabin, firstly, passing the new cable 302 through the waterproof cable connector 400 in the cabin and the cabin body partition plate 200 to reach the inner cavity of the protective cover outside the cabin, ensuring that the cable with sufficient length is in the wire storage cavity outside the cabin, and then fixing the waterproof cable connector 400 in the cabin on the cabin body partition plate 200 to realize the fixation and sealing between the new cable in the cabin and the cabin body partition plate 200, as shown in fig. 3 c.
Fourthly, opening the air release valve 40 outside the warehouse, releasing the pressure in the storage line cavity outside the warehouse, then detaching the protective cover outside the warehouse, sleeving the waterproof joint 500 of the cable outside the warehouse on the new cable outside the warehouse, fixing the waterproof joint 500 of the cable outside the warehouse on the bin body partition plate 200, realizing the fixation and sealing between the new cable outside the warehouse and the bin body partition plate 200, and finishing the threading operation under pressure as shown in fig. 3 d.
The pressure chamber area in this embodiment presses threading method, because the setting of the outer protection casing of storehouse, guarantee that threading in-process pressure side and ordinary pressure side are isolated always, make the compressed gas in the pressure chamber not have too much loss, only can lose the gas of a protection casing volume size, because the outer protection casing of storehouse only is used for covering establishes the cable through wires hole and holds the cable, the space is not big, consequently this point gas can not lead to the fact the influence to the bulk pressure of pressure chamber, and when the outer protection casing of storehouse is torn down at last, although the gas of certain pressure can discharge in the outer protection casing of storehouse, these gas quantities are few, can not lead to the fact the injury to the outer operation personnel of storehouse, the risk has been reduced.
To sum up, this embodiment can accomplish demolising of old cable and the installation of new cable smoothly through the installation of storehouse outer protective cover and the dismouting order of storehouse interior and storehouse outer cable water joint, not only can reduce and cause injury, the reduction risk to the operation personnel outside the storehouse, can reduce the operating time of operation personnel area pressure moreover, alleviate intensity of labour, reduce cost.
The embodiment 2 of the pressure chamber threading method provided by the invention comprises the following steps: in this embodiment, the pressure side is defined as a first side, and the normal pressure side is defined as a second side, as shown in fig. 4, when the pressure cabin threading method in this embodiment is implemented, the threading device in the cabin needs to be installed on the pressure side, that is, in the cabin, and a specific structure of the threading device in the cabin is described below.
The concrete structure of threading device in the storehouse is the same with threading device outside the storehouse in this embodiment, combine fig. 2 and fig. 4 to show, and threading device in the storehouse includes protection casing in the storehouse, and the protection casing is used for fixing on storehouse body baffle 200 and covers the outside of establishing at cable through wires hole 201 in the storehouse, and the inner chamber of protection casing forms the interior wire storage chamber 3 that is used for holding the cable in the storehouse. For convenient manufacturing, the protective cover in the storehouse comprises a protective pipe 1 in the storehouse and a sealing plate 2 in the storehouse, the protective pipe 1 in the storehouse is a round pipe, and the threading device in the storehouse also comprises an air release valve 4 in the storehouse, wherein the air release valve is arranged on the sealing plate 2 in the storehouse. One end of the protecting pipe 1 in the bin is fixedly connected with the sealing plate 2 in the bin, and the other end of the protecting pipe 1 in the bin is fixed on the bin body partition plate 200, specifically, two ends of the protecting pipe 1 in the bin are respectively provided with a flange, one end of the protecting pipe 1 in the bin is fixedly connected with the sealing plate 2 in the bin through a flange, a first bolt 7 in the bin and a nut, and the other end of the protecting pipe 1 in the bin is fixedly connected with the bin body partition plate 200 through a flange, a second bolt 8 in the bin. In order to guarantee the sealing performance, a first sealing gasket 5 in the cabin is arranged between the protective pipe 1 in the cabin and the sealing plate 2 in the cabin, and the threading device in the cabin further comprises a second sealing gasket 6 in the cabin, which is arranged between the protective pipe 1 in the cabin and the cabin body partition plate 200.
It should be noted that, although fig. 2 shows both the threading device inside the barn and the threading device outside the barn, the present invention is only for explaining the specific structure of the device and does not represent the actual use mode.
As shown in fig. 4, the method for threading the pressure chamber with pressure in this embodiment includes the following steps:
firstly, the waterproof connector 400 of the cable in the cabin is detached from the cabin body partition board 200, then the protecting pipe 1 in the cabin is installed on the cabin body partition board 200, of course, the protecting pipe 1 in the cabin can be installed firstly, and then the waterproof connector 400 of the cable in the cabin is detached. Wherein, the protective tube 1 in the storehouse surrounds the outside of the cable threading hole 201, then the old cable 301 in the storehouse is stored in the protective tube 1 in the storehouse, finally the closing plate 2 in the storehouse and the air valve 4 in the storehouse are installed, and the air valve 4 in the storehouse is closed, so as to ensure that the wire storage cavity 3 in the storehouse is in a closed state, as shown in fig. 4 a.
Secondly, firstly, the waterproof connector 500 of the cable outside the warehouse is detached from the warehouse body partition board 200, then the old cable 301 is pulled outside the warehouse, and the old cable in the wire storage cavity 3 in the warehouse is completely pulled outside the warehouse through the warehouse body partition board 200, so as to realize the detachment of the old cable 301, as shown in fig. 4 b.
Thirdly, installing a new cable 302 from outside the warehouse, firstly, passing the new cable 302 through the waterproof connector 500 of the cable outside the warehouse and the cabin body partition board 200 to reach the inner cavity of the protective cover in the warehouse, ensuring that the cable in the storage line cavity in the warehouse is long enough, and then fixing the waterproof connector 500 of the cable outside the warehouse on the cabin body partition board 200, so as to realize the fixation and sealing between the new cable outside the warehouse and the cabin body partition board 200, as shown in fig. 4 c.
And fourthly, opening the air discharging valve 4 in the bin to ensure that the pressure in the wire storage cavity in the bin is consistent with the pressure in the pressure bin, then detaching the protective cover in the bin, sleeving the waterproof joint 400 of the cable in the bin on the new cable in the bin, fixing the waterproof joint 400 of the cable in the bin on the bin body partition plate 200, and realizing the fixation and sealing between the new cable in the bin and the bin body partition plate 200, wherein as shown in fig. 4d, the under-pressure threading operation can be completed.
The embodiment 3 of the threading method with pressure of the pressure chamber in the invention is as follows: different from the embodiment 2, the threading device in the cabin does not comprise the air release valve in the cabin, namely the air release valve in the cabin is not installed on the protective cover in the cabin, and the threading device can be directly disassembled when the protective cover in the cabin is finally disassembled.
The embodiment 4 of the threading method with pressure of the pressure chamber in the invention is as follows: unlike embodiments 1 and 2, the first gasket may not be provided between the protection tube and the sealing plate, regardless of the threading device inside or outside the silo, and of course, the threading device inside or outside the silo may not include the second gasket.
The embodiment 5 of the threading method with pressure of the pressure chamber in the invention is as follows: different from the embodiment 1, the threading device outside the cabin does not comprise an air release valve outside the cabin, and the threading device can be directly dismounted when the protective cover outside the cabin is finally dismounted.
The embodiment 6 of the threading method with pressure of the pressure chamber in the invention is as follows: different from embodiment 1 and 2, no matter be threading device in the storehouse or threading device outside the storehouse, the both ends of protective tube do not all set up the flange, the protective tube can with shrouding welded fastening, and can be fixed through magnet absorption between protective tube and the storehouse body baffle.
The embodiment 7 of the threading method with pressure of the pressure chamber in the invention is as follows: unlike embodiments 1 and 2, the protection pipe, whether it is an in-cabin threading device or an out-cabin threading device, may be a square pipe, and the air release valve is installed on the protection pipe at this time.
The embodiment 8 of the threading method with pressure of the pressure chamber in the invention is as follows: unlike examples 1 and 2, the safety shield is an integral safety shield, whether it is an in-or out-of-bin threading device.
The embodiment 9 of the threading method with pressure of the pressure chamber in the invention is as follows: different from the embodiment 1, in the first step, before the waterproof connector of the cable outside the cabin is removed, the threading device in the cabin can be installed in the cabin, so that the threading device in the cabin and the waterproof connector of the cable in the cabin realize isolation between the pressure side and the normal pressure side together, and the sealing performance is ensured.
The embodiment 10 of the threading method with pressure of the pressure chamber in the invention is as follows: different from the embodiment 2, in the first step, before the waterproof connector of the cable in the cabin is removed, the threading device outside the cabin can be installed outside the cabin, so that the isolation between the pressure side and the normal pressure side is realized by the threading device outside the cabin and the waterproof connector of the cable outside the cabin, and the sealing performance is ensured.
The embodiment 11 of the threading method with pressure of the pressure chamber in the invention is as follows: the pressure chamber is not an air cushion chamber of the shield machine, but is a pressure chamber at other positions on the shield machine.
The embodiment 12 of the threading method with pressure of the pressure chamber in the invention is as follows: the pressure cabin is not a pressure cabin on the shield tunneling machine, but a pressure cabin related to the under-pressure threading operation in other fields.
The embodiment of the threading device for implementing the pressure chamber threading method with pressure in the invention is as follows: the specific structure of the threading device is the same as the threading device inside the bin or the threading device outside the bin in the above embodiments, and the detailed description is omitted here.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (8)
1. The pressure chamber threading method is characterized in that two sides of a partition plate of a chamber body are defined, one side without pressure is a normal pressure side and is defined as a first side, one side with pressure is a pressure side and is defined as a second side, and then the pressure chamber threading method comprises the following steps:
firstly, detaching a waterproof cable joint on a first side from a bin body partition plate, and then installing a protective cover on the first side on the bin body partition plate, so that the protective cover is covered outside a cable threading hole and an old cable on the first side is accommodated in an inner cavity of the protective cover;
secondly, firstly detaching the waterproof cable joints on the second side from the cabin body partition plate, then pulling the old cables on the second side, and drawing all the old cables on the first side to the second side through the cabin body partition plate to realize the detachment of the old cables;
thirdly, installing a new cable from the second side, firstly, penetrating the new cable through the waterproof cable joint on the second side and the bin body partition plate to reach the inner cavity of the protective cover, and then fixing the waterproof cable joint on the second side on the bin body partition plate to realize the fixation and sealing between the new cable on the second side and the bin body partition plate;
and fourthly, detaching the protective cover, sleeving a waterproof cable joint on the new cable on the first side, and fixing the waterproof cable joint on the first side onto the bin body partition plate to realize the fixation and sealing between the new cable on the first side and the bin body partition plate.
2. The pressure belt threading method of claim 1, wherein the first side is a normal pressure side, the second side is a pressure side, and the protective cover is adapted to be mounted on the normal pressure side.
3. Threading device for implementing the pressure-cabin threading method according to claim 1, characterized in that it comprises:
the protective cover is used for being fixed on the bin body partition plate and covering the outside of the cable threading hole, and the inner cavity of the protective cover forms a wire storage cavity for accommodating a cable.
4. The threading device of claim 3, wherein the protective cover comprises a protective tube and a sealing plate, one end of the protective tube is fixedly connected with the sealing plate, and the other end of the protective tube is used for being fixed on the cabin body partition plate.
5. The threading device of claim 4, wherein flanges are respectively arranged at two ends of the protective tube, and the protective tube is fixedly connected with the cabin body partition plate and the sealing plate through the flanges and the fasteners.
6. A threading device according to any of claims 3 to 5 wherein the device further comprises a release valve mounted on the protective cover for releasing the pressure in the storage chamber prior to removal of the protective cover.
7. The threading device of claim 6, wherein the protective tube is a round tube and the release valve is mounted on the closure plate.
8. The threading device according to any one of claims 3 to 5, wherein a first sealing gasket is arranged between the protective tube and the sealing plate, and the threading device further comprises a second sealing gasket arranged between the protective tube and the cabin body partition plate.
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| CN202110304015.7A CN112993850B (en) | 2021-03-22 | 2021-03-22 | Threading method for pressure bin under pressure and threading device for implementing method |
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| CN202110304015.7A CN112993850B (en) | 2021-03-22 | 2021-03-22 | Threading method for pressure bin under pressure and threading device for implementing method |
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| CN112993850B CN112993850B (en) | 2023-09-29 |
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| CN102975834A (en) * | 2012-12-12 | 2013-03-20 | 广州中船黄埔造船有限公司 | Method for changing depth finder under water |
| CN104121449A (en) * | 2013-04-25 | 2014-10-29 | 中国石油化工股份有限公司 | Device and method for blocking pipeline under pressure |
| CN204559072U (en) * | 2015-04-11 | 2015-08-12 | 淄博飞雁先行测控技术有限公司 | Submerged type differential pressure transmitter cable sealing device |
| CN204905803U (en) * | 2015-07-02 | 2015-12-23 | 国网新疆电力公司伊犁供电公司 | Cable watertight fittings |
| CN210074295U (en) * | 2019-03-04 | 2020-02-14 | 福建海图智能科技有限公司 | Watertight cabin threading structure |
| CN111509611A (en) * | 2020-04-27 | 2020-08-07 | 中船澄西船舶修造有限公司 | Repair and replacement method for ship deck cable transition box |
| CN111817074A (en) * | 2020-07-29 | 2020-10-23 | 中交第一航务工程局有限公司 | Underwater cable connector |
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2021
- 2021-03-22 CN CN202110304015.7A patent/CN112993850B/en active Active
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|---|---|---|---|---|
| JPH06225422A (en) * | 1992-08-28 | 1994-08-12 | Toyokuni Densen Kk | Manufacture of unit cable |
| JPH09247825A (en) * | 1996-03-07 | 1997-09-19 | Sankei Seisakusho:Kk | Cable retaining device |
| WO2002067397A1 (en) * | 2001-02-20 | 2002-08-29 | Alois Pichler | Method for removing a cable core from a cable sheath |
| JP2007037239A (en) * | 2005-07-25 | 2007-02-08 | Tokyo Electric Power Co Inc:The | Construction method for repairing waterproof pipe of manhole and construction method for waterproofing manhole |
| CN102975834A (en) * | 2012-12-12 | 2013-03-20 | 广州中船黄埔造船有限公司 | Method for changing depth finder under water |
| CN104121449A (en) * | 2013-04-25 | 2014-10-29 | 中国石油化工股份有限公司 | Device and method for blocking pipeline under pressure |
| CN204559072U (en) * | 2015-04-11 | 2015-08-12 | 淄博飞雁先行测控技术有限公司 | Submerged type differential pressure transmitter cable sealing device |
| CN204905803U (en) * | 2015-07-02 | 2015-12-23 | 国网新疆电力公司伊犁供电公司 | Cable watertight fittings |
| CN210074295U (en) * | 2019-03-04 | 2020-02-14 | 福建海图智能科技有限公司 | Watertight cabin threading structure |
| CN111509611A (en) * | 2020-04-27 | 2020-08-07 | 中船澄西船舶修造有限公司 | Repair and replacement method for ship deck cable transition box |
| CN111817074A (en) * | 2020-07-29 | 2020-10-23 | 中交第一航务工程局有限公司 | Underwater cable connector |
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|---|---|
| CN112993850B (en) | 2023-09-29 |
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