CN105127473B - Drilling device and method for inner-layer plate of double-layer hull - Google Patents

Abstract

A device and method for opening holes in the inner plate of a double-layer hull, including: a connecting mechanism, a drive controller, and a hole-opening connector for opening holes in the inner plate, wherein: the hole-opening connector is controlled by the connecting mechanism and the drive The open-hole connector includes: a support frame, a drill sheath, a hollow drill and a hollow drill connecting rod with a through hole in the radial direction, the drive controller includes a box body and a buoyancy block, and the connection mechanism includes a connection guide rod, connector guide pipe and guide rod clamping device, the invention can carry out drilling and pumping operations on the inner ship plate from the outside of the hull, and the drive controller is detachable, especially suitable for carrying out on a sunken ship. For multi-point drilling operations, once the drilling work is completed, the drive controller can be transferred, leaving the hole connector on the ship board to complete the subsequent work of introducing seawater or pumping liquid. At this time, the drive controller can cooperate with other The open hole connectors are used for other hole opening operations.

Description

Device and method for opening holes in inner layer plate of double-layer ship hull

technical field

The invention relates to the technology in the field of shipwreck liquid recovery, in particular to a device and method for opening holes in the inner plate of a double-layer ship hull.

Background technique

At present, with the development of the water transportation industry, water pollution caused by shipwrecks or leaks occurs from time to time. The liquid in the sunken ship leaks into the water body, causing water pollution and endangering the ecological environment. In particular, the shipwreck and leakage accidents of oil tankers have caused even greater harm to marine water bodies and the ecological environment. Liquid transportation, especially oil transportation, usually adopts a double-hull hull, and the hull is divided into two layers: the outer plate and the inner plate. The prior art generally adopts the method of drilling-extracting oil to recover liquids such as oil in the sunken ship. First, a hole is drilled in the oil tank of the tanker, and an oil pipe is connected to the hole, and the oil is pumped out through the pipeline.

After searching the prior art, it is found that the Chinese patent document CN1922073A, with a publication date of February 28, 2007, discloses a method of transporting liquid in the cabin of a sunken ship, such as oil, toxic chemicals or similar substances, to a floating body, A non-disclosed remote control device, and a method for performing operations using the device. The underwater recovery device 100 of the equipment includes: a support frame 10, on which a plurality of devices including connectors 111 are fixed, a clamp 20 for fixing the underwater recovery device 100 on the sunken ship 500, and a base 80 connected to Grabber 30 on support frame 10, DTB system 40 connecting base 80 to wreck 500, propeller 50 providing reasoning to connect support frame 10 to wreck 500, hole opener 60 to drill holes for recovery of liquid , and a liquid recovery device 70 for recovering liquid through the borehole on the sunken ship 500 . But this device is only applicable to single-layer ship hull, can't carry out oil pumping to double-layer ship hull.

Chinese patent document CN104354843A, published on February 18, 2015, discloses a marine oil tanker miniature salvage drilling device and method that cooperates with ROV in the marine ship technology collar. The device includes: a main frame, a pre-positioning device, a precise Positioning device, hollow drilling rig, oil pumping valve, hydraulic control valve group, electric control cabin and supporting sensors, wherein: the oil pumping valve is connected with the main frame through the oil pumping valve clamping mechanism, and the predetermined position is set at the front of the main frame Around the bottom plate, the precise positioning device is set on the front bottom plate of the main frame, the hollow rotating machine is set in the middle of the main frame, and the hydraulic control valve group, electric control cabin and supporting sensors are set at the rear of the main frame. But this device can not directly carry out hole to inner layer hull from outer layer hull, needs the outer layer hull to open a hole big enough to allow hole opening machine to enter with other operating means in advance.

Contents of the invention

Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a device and method for opening holes in the inner plate of a double-layer ship hull.

The present invention is achieved through the following technical solutions:

The invention relates to a device for opening a hole in an inner layer of a double-hull ship, which includes a connection mechanism, a drive controller and a hole opening connector for opening a hole in the inner layer, wherein the hole opening connector is controlled by the connection mechanism and the drive active connection to the device;

The open-hole connector includes: a support frame, a hollow drill, a hollow drill connecting rod and a transmission device, wherein the drill connecting rod is movably arranged in the support frame, and one end is connected to the hollow drill, and the other end is connected to the transmission device.

The active part of the transmission device is provided with several active heads, which can drive the feed and rotation of the drill connecting rod by driving the active heads.

The upper part of the drill connecting rod is provided with an oil outlet, and the lower part of the drill connecting rod is provided with an oil suction hole, forming a passage from the lower oil suction hole to the upper oil outlet hole through the cavity in the connecting rod.

The drive controller includes: a box body and a drive device, wherein: the drive device is provided with a drive head that matches each driven head in the driven part on the open-hole connector, and the box body is provided with a drive head that is compatible with each drive head The drive motor corresponding to the head.

The connection mechanism includes: a passive connector, an active connector and a clamp, wherein: the passive connector is arranged on the support frame of the hole connector, the active connector and the clamp are arranged in the box, and the When the open-hole connector and the drive controller are connected, the active connector and the passive connector cooperate with each other and are fixed by the clamp.

The open-hole connector also includes a drill sheath and its feeding device, wherein: the drill sheath is movably arranged outside the drill connecting rod, and the drill sheath is connected and driven by the drill sheath feeding device. A part of the driven head can drive the feed movement of the drill sheath by driving the driven head.

The drill sheath is provided with a bypass hole, the upper end of the drill sheath is provided with a dynamic sealing ring, the position of the dynamic seal ring is between the drill sheath and the outer wall of the drill connecting rod, the drill sheath Above the bypass hole and the oil outlet hole of the drill connecting rod; there is a static seal ring at the lower end of the drill sheath. When the drill sheath is pressed against the inner ship plate, the static seal ring realizes the The seal between the sleeves makes the liquid in the cabin only output through the bypass hole of the drill sheath without leakage.

The lower end of the drill sheath is provided with an annular baffle, and the hollow drill, the inner wall of the drill sheath and the annular baffle form a chip cavity for collecting chips.

The present invention relates to a method for recovering liquid in a double-hull shipwreck based on the above-mentioned device, comprising the following steps:

Step 1, opening holes on the outer shell plate of the sunken ship where the seawater is introduced and where the liquid is drawn;

Step 2, fixing the opening device on the inner layer plate of the double-layer hull at the seawater introduction place, opening holes on the inner layer plate and setting the seawater introduction device;

Step 3. Fix the opening device of the inner layer plate of the double-layer hull at the liquid extraction place, and after opening the hole on the inner layer plate, separate the drive controller from the hole opening connector;

Step 4, extract the liquid through the hole connector left at the liquid extraction place, and at the same time introduce seawater at the seawater introduction place to fill the space occupied by the withdrawn liquid.

The seawater introduction device in step 2 is an open-hole connector connected with a one-way valve or a valve element arranged at the open hole of the outer plate.

technical effect

Compared with the prior art, the invention can carry out drilling and pumping operations on the inner ship plate from the outer surface of the hull, and the drive controller is detachable, and is especially suitable for multi-point drilling operations on a sunken ship. Once the hole opening work is completed, the drive controller can be transferred, and the hole connector is left on the ship board to complete the subsequent work of introducing seawater or pumping liquid. At this time, the drive controller can cooperate with other hole connectors on other ports. Local drilling work.

Description of drawings

Fig. 1 is the overall schematic diagram of the opening device for the inner layer plate of the double-layer ship hull;

Figure 2 is a schematic diagram of the structure of the hole connector;

Figure 3 is an enlarged schematic view of a hollow drill;

Figure 4 is a perspective view of the front of the drive controller;

Figure 5 is a schematic diagram of the rear view of the drive controller;

In the figure: 1 hole connector; 101 support frame; 102 hollow drill; 103 bypass pipe; 104 valve connecting pipe; 105 connector guide rod; 106 locking taper pin; Sheath; 109 Feed Actuated Head; 110 Drill Rotating Actuated Head; 111 Drill Sheath Moving Actuated Head; 112 Ring Block; 113 Chip Chamber; 2 Drive Controller; 201 Box; 202 Buoyancy Block ; 203 feed drive head; 204 drill rotary drive head; 205 drill sheath moving drive head; 206 connector guide tube; 207 feed drive motor; 208 drill drive motor; 209 drill sheath moving drive motor; 210 guide rod clamp; 211 instrument warehouse; 212 hydraulic valve box; 3 valve parts; 4 pump; 5 connection mechanism.

detailed description

The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

Example 1

As shown in FIG. 1 , this embodiment includes: an aperture connector 1 , a drive controller 2 and a connection mechanism 5 , wherein: the aperture connector 1 and the drive controller are movably connected through the connection mechanism 5 . The perforated connector 1 can be connected with a pump 4 and a valve part 3, the valve part 3 is used to fix the perforated connector to the perforation of the outer plate of the hull, and the liquid in the hull can be pumped through the pump 4.

As shown in Figure 2, the described perforated connector 2 comprises: a support frame 101, a drill sheath 108, a hollow drill 102 and a hollow drill connecting rod 107 radially provided with through holes, wherein: the support frame The bottom of 101 is provided with a dovetail groove, and one end of the drill sheath 108 is slidably connected with the support frame 101 through the dovetail groove arranged at the bottom of the support frame 101, and is connected with the movable head 111 of the drill sheath, so that the drill sheath The sleeve 108 is axially movable. As shown in FIG. 3 , the free end of the drill sheath 108 is provided with a chip chamber 113 for collecting chips produced by the hollow drill 104 when cutting steel plates. The chip chamber 113 is composed of an annular baffle 112 arranged at the free end of the drill sheath 108 , the hollow drill 102 and the inner wall of the drill sheath 108 . The drill connecting rod 107 is movably arranged in the drill sheath 108 , and its two ends are respectively connected with the hollow drill 102 and the drill rotary driven head 110 . The support frame 101 is also provided with a feed driven head 109, which is connected with the drill connecting rod 107 to push the drill 102 to move along the axial direction.

The feed driven head 109 , drill bit rotation driven head 110 and drill sheath moving driven head 111 are all arranged at the end of the support frame 101 connected with the drive controller 2 . The rotary driven head 110 of the drill bit is connected to the drill bit 102 through a sliding spline, so that the rotary motion of the bit rotated driven head 110 is transmitted to the drill bit 102 synchronously.

The drill sheath 108 is provided with a bypass pipe 103, and the end of the bypass pipe 103 can be connected to the pump 4 for pumping the liquid in the hull. The end of the bypass pipe 103 can also be connected with a one-way valve for replenishing water in the cabin at the place where seawater is introduced. Two valve connecting pipes 104 and locking taper pins 106 are also provided on the support frame 101 for connecting the valve 3 fixed on the outer layer of the ship and the hole connector 1 .

The free end of the drill sheath 108 is provided with a static sealing ring, which forms a seal when the drill sheath 108 is extruded with the inner layer of the hull, and the connecting end of the drill sheath 108 is provided with a dynamic seal to form a seal. pipeline. When the drill bit 102 penetrates the inner layer of the hull, the liquid in the hull can pass through the hollow part of the drill bit 102 , the drill bit connecting rod 107 , the drill bit sheath 108 and the bypass pipe 103 , and is extracted through the pump 4 .

As shown in Figures 4 and 5, the drive controller 2 includes: a box body 201 and a buoyancy block 202, wherein: the buoyancy block 202 is a cuboid corresponding to the section of the box body, and is fixedly arranged on both sides of the box body 201 to Increases the buoyancy of the unit. The outer wall of the side of the box body 201 connected to the hole connector 1 is provided with a feed drive head 203, a drill rotary drive head 204 and a drill sheath moving drive which are matched with each driven head on the hole connector 1. The head 205 and the box body 201 are correspondingly provided with a feed drive motor 207 , a drill drive motor 208 and a drill sheath moving drive motor 209 . After the opening connector 1 is connected to the drive controller 2, the feed driven head 109 and the feed drive head 203 cooperate to drive the hollow drill 102 forward and backward; the drill rotary driven head 109 and the drill rotary drive head 205 cooperate to drive the drill 102 to rotate; the drill sheath moving driven head 111 cooperates with the drill sheath moving driving head 205 to drive the drill sheath 108 to move axially.

The connecting mechanism 5 includes: a connector guide rod 105 arranged on the hole connector 1 , a connector guide tube 206 and a guide rod clamp 210 arranged on the box body 201 . When the open-hole connector 1 is connected to the drive controller 2 , the connector guide rod 105 cooperates with the connector guide tube 206 , and then is clamped and fixed by the guide rod clamper 210 .

The upper part of the box body 201 is provided with an instrument cabin 211, which is used as an electrical control center, and the lower part is provided with a hydraulic valve box 212, which is used as a hydraulic control center.

Before the hole opening device for the inner layer plate of the double-layer hull is opened, at first the valve part 3 for fixing the hole opening device for the inner layer plate is set on the outer layer plate of the ship where the hole is to be opened, and the valve part 3 at the valve part 3 place Perforation on the outer panel. After the opening device of the inner layer plate of the double-layer hull is like water, it is fixed on the valve part 3 by the valve part 3 connecting pipe 104 and the locking taper pin 106. When drilling holes on the inner layer, the drill sheath 108 and the hollow drill 102 move together until the drill sheath 108 contacts the inner layer of the hull, and then the hollow drill 102 rotates and feeds to penetrate the inner layer , continue to feed until the hollow drill bit is connected with the liquid in the ship. At this time, the bypass pipe 103 on the open connector 2 is connected with the pump 4, so that the liquid in the ship can be pumped out. When the bypass pipe 103 is connected with a one-way valve, water can be replenished into the hull through the hole connector 1 .

The present invention relates to the recovery method of sunken ship liquid using the above-mentioned device, comprising the following steps:

Step 1, opening holes on the outer shell plate of the sunken ship where the seawater is introduced and where the liquid is drawn;

Step 2, fixing the opening device on the inner layer plate of the double-layer hull at the seawater introduction place, opening holes on the inner layer plate and setting the seawater introduction device;

Step 3, fix the hole-opening device on the inner layer plate of the double-layer hull connected with the pump to the liquid extraction place, and after opening the hole on the inner layer plate, separate the drive controller from the hole-opening connector;

In step 4, the liquid is drawn through the open-hole connector left at the liquid extraction place, and seawater is introduced at the seawater introduction place at the same time.

The seawater introduction device is a valve element arranged at the opening of the outer layer plate or an opening connector 1 connected with a one-way valve to control the entry and exit of seawater. When the seawater introduction device is the perforated connector 1, the bypass pipe 103 of the perforated connector 1 is connected with a check valve, and after the perforated connector 1 is perforated on the inner layer of the hull, the drive controller 2 is separated from it and opened. The hole connector 1 continues to be connected with the inner plate to realize water replenishment of the hull.

Compared with the prior art, the device for opening holes in the inner layer plate of the present invention can carry out drilling and pumping operations on the inner ship plate from the outer surface of the hull, and the drive controller is detachable, especially suitable for a sunken ship Perform multi-point drilling operations. Once the hole opening work is completed, the drive controller can be transferred, and the hole connector is left on the ship board to complete the subsequent work of introducing seawater or pumping liquid. At this time, the drive controller can cooperate with other hole connectors on other ports. Local drilling work.

Claims (9)

1. A double-hull inner layer plate opening device is characterized in that it includes: a connection mechanism, a drive controller and a hole connector for opening holes in the inner layer plate, wherein: the hole connector connects The mechanism is actively connected with the drive controller; The open-hole connector includes: a support frame, a hollow drill, a hollow drill connecting rod and a transmission device, wherein the drill connecting rod is movably arranged in the support frame, and one end is connected to the hollow drill, and the other end is connected to the transmission device; The open-hole connector also includes a drill sheath and its feeding device, wherein: the drill sheath is movably arranged outside the drill connecting rod, and the drill sheath is connected and driven by the drill sheath feeding device. Part of the driven head, by driving the driven head to drive the feed movement of the drill sheath. 2. The opening device for the inner layer plate of double-layer ship hull according to claim 1, characterized in that, the driven part of the transmission device is provided with several driven heads, and the drill bit can be driven to connect with the drill by driving the driven heads. Feed and rotational movement of the rod. 3. The double-hull inner layer plate drilling device according to claim 1, characterized in that, the upper part of the drill connecting rod is provided with an oil outlet hole, and the lower part of the drill connecting rod is provided with an oil suction hole , forming a channel from the lower oil suction hole to the upper oil outlet hole through the cavity in the connecting rod. 4. The hole opening device for the inner layer plate of the double hull according to claim 1, characterized in that, the drive controller comprises: a box body and a drive device, wherein: the drive device is provided with the hole opening connector The driving heads matched with each driven head in the driven part, and the drive motor corresponding to each driving head is arranged in the box. 5. The opening device for the inner layer plate of double-layer ship hull according to claim 1, characterized in that, the connecting mechanism comprises: a passive connector, an active connector and a clamp, wherein: the passive connector is arranged on On the support frame of the hole connector, the active connector and the clamp are arranged in the box body. When the hole connector is connected to the drive controller, the active connector and the passive connector cooperate with each other, and the clamp achieve fixation. 6. The device for opening holes in the inner layer plate of double-layer hull according to claim 1, characterized in that, the drill sheath is provided with a bypass hole, and the upper end of the drill sheath is provided with a dynamic sealing ring, The position of the dynamic sealing ring is between the outer wall of the drill sheath and the drill connecting rod, above the bypass hole of the drill sheath and the oil outlet hole of the drill connecting rod; there is a static sealing ring at the lower end of the drill sheath. When the drill sheath is pressed against the inner ship plate, the static sealing ring realizes the seal between the ship plate and the drill sheath, so that the liquid in the cabin can only be output through the bypass hole of the drill sheath without Leaked. 7. The double-hull inner layer plate opening device according to claim 1, characterized in that, the lower end of the drill sheath is provided with an annular baffle, and the hollow drill, the inner wall of the drill sheath and the ring The flaps form a chip chamber for chip collection. 8. A method for recovering liquid in a double-hull sunken ship according to the device according to any one of the preceding claims, characterized in that it comprises the following steps: Step 1, opening holes on the outer shell plate of the sunken ship where the seawater is introduced and where the liquid is drawn; Step 2, fixing the opening device on the inner layer plate of the double-layer hull at the seawater introduction place, opening holes on the inner layer plate and setting the seawater introduction device; Step 3. Fix the opening device of the inner layer plate of the double-layer hull at the liquid extraction place, and after opening the hole on the inner layer plate, separate the drive controller from the hole opening connector; Step 4, extract the liquid through the hole connector left at the liquid extraction place, and at the same time introduce seawater at the seawater introduction place to fill the space occupied by the withdrawn liquid. 9 . The method according to claim 8 , wherein the seawater introduction device in step 2 is an open-hole connector connected with a one-way valve or a valve element arranged at the open hole of the outer layer plate. 10 .