CN110645438A - Leak-proof device and method for rupture hose - Google Patents
Leak-proof device and method for rupture hose Download PDFInfo
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- CN110645438A CN110645438A CN201810676949.1A CN201810676949A CN110645438A CN 110645438 A CN110645438 A CN 110645438A CN 201810676949 A CN201810676949 A CN 201810676949A CN 110645438 A CN110645438 A CN 110645438A
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- hose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a leakage-proof device and a method for a broken hose, wherein the device comprises a hose (1), a sleeve (2), a hard tube (3), an exhaust hole (4), a first hoop (6), a second hoop (7) and an oil circuit closing control assembly; the two ends of the hose are respectively provided with a pipe joint, the sleeve is sleeved outside the hose, and the two ends of the sleeve are connected with the hose through the pipe joints and are fixed through a first anchor ear and a second anchor ear; the upper end of the vertical setting of hard tube and hard tube is connected with one end of hose through the coupling, and the other end of hose is connected to fan-shaped section (8) top of conticaster, and the upper portion of hose (1) is the crooked form of arc and hangs the setting, and the sleeve pipe end is equipped with the exhaust hole, and the oil circuit closes the control assembly setting on the sleeve pipe. The invention can contain leaked oil, control the shape and position change of the hose by the quantitative condition of the leaked oil and control the opening and closing of the oil in the system in the hose by the control loop so as to prevent the oil from leaking out in large quantity and various safety accidents.
Description
Technical Field
The invention relates to an automatic control device and method for industrial hose breakage, in particular to a leakage-proof device and method for a broken hose.
Background
The medium-high pressure hose is widely used in large-scale industrial production fields, and due to certain pressure, the hose except a metal pipe joint can be aged and cracked after being used for a period of time, or the hose can be leaked or cracked due to production and manufacturing reasons, so that the pressure of a pipeline system is unbalanced, and production accidents are caused under severe conditions.
For example, in the smelting industry, the segment on the continuous casting machine equipment is controlled by the oil cylinder to adjust various indexes such as the roll gap, in order to change the segment, the oil cylinder on the segment is generally connected by the high-pressure hose, and the segment is sectional opening and closing equipment.
Disclosure of Invention
The invention aims to provide a leakage-proof device and a leakage-proof method for a broken hose, which can contain leaked oil, control the form and position change of the hose through the quantitative condition of the leaked oil and control the opening and closing of oil in a system in the hose through a control loop so as to prevent the oil from leaking out in large quantity and various safety accidents.
The invention is realized by the following steps:
a leakage-proof device for a broken hose comprises a hose, a sleeve, a hard pipe, an exhaust hole, a first hoop, a second hoop and an oil way closing control assembly; the hose comprises a hose, a sleeve, a first anchor ear, a second anchor ear, a first sleeve and a second sleeve, wherein the two ends of the hose are respectively provided with a pipe joint; the hard pipe is vertically arranged, the upper end of the hard pipe is connected with one end of the hose through the pipe joint, the other end of the hose is connected to the top of the fan-shaped section of the continuous casting machine, the height of the hard pipe connecting end of the hose is higher than that of the fan-shaped section connecting end, the upper part of the hose is hung in an arc-shaped bent shape, and the top end of the sleeve is provided with an exhaust hole which is positioned above the top of the hose; the oil circuit closing control assembly is arranged on the sleeve and is positioned at the joint of the hose and the hard pipe.
The oil circuit closing control assembly comprises a double-end bayonet hoop, a conductor sleeve, a guide pipe, a lead, a controller, a power supply, a relay and an electromagnetic valve; the two ends of the double-end bayonet hoop are of split ring structures and are respectively sleeved on the sleeve, so that the interior of the sleeve is smooth up and down, the conductor sleeve is sleeved on the sleeve and is positioned below the split ring on the double-end bayonet hoop, the conduit is arranged between the upper suspension part of the hose and the hard pipe, and the conduit and the conductor sleeve are respectively provided with a lead and are connected through the lead; the power supply is connected with a first input end of the controller through a relay and a guide wire on the guide pipe and the conductor sleeve to form a relay loop; the solenoid valve is connected between the oil supply pipeline and the first output end of the controller to form a solenoid valve control loop.
The guide pipe and the hard pipes are vertically arranged, so that the guide pipe can be simultaneously contacted and connected with the hard pipes arranged in multiple rows.
The oil circuit closing control assembly further comprises an overcurrent protection circuit breaker, one end of the overcurrent protection circuit breaker is connected with the power supply and a second input end of the controller through an auxiliary contact, the other end of the overcurrent protection circuit breaker is connected with the relay, and a second output end of the controller is externally connected with a tripping alarm to form an overcurrent protection loop.
The controller is externally connected with a monitoring computer of the central monitoring room.
The aperture of the exhaust hole is larger than the pipe diameter of the sleeve.
The anti-leakage device for the broken hose further comprises a stop valve and a drainage tube, the stop valve is arranged on the hard tube, a hollow counter weight is arranged at the tail end of a valve handle of the stop valve, one end of the drainage tube is connected to the upper portion of the sleeve, and the other end of the drainage tube is directly communicated with the hollow counter weight.
The anti-leakage device of the rupture hose further comprises an electric control valve, a box body and a drainage tube, wherein the electric control valve is arranged on the hard tube, the box body is arranged on the outer side of the electric control valve, one end of the drainage tube is directly communicated with the box body, the other end of the drainage tube is connected to the upper portion of the sleeve, and a pair of electric contacts is arranged in the box body.
A leak-proof method of rupturing a flexible tube, comprising the steps of:
step 1: the hose is broken, the oil leaks out of the hose and is limited in the sleeve, and air in the sleeve is exhausted from the exhaust hole;
step 2: the weight of the whole sleeve rises due to oil leakage and is reversely stressed and deviated to the opening of the double-end bayonet hoop, so that the sleeve is separated from the double-end bayonet hoop, and the conductor sleeve leans against the guide pipe;
and step 3: the lead on the catheter is contacted with the lead on the conductor sleeve to form a control loop, the relay loop is closed, and the relay is electrified to close the contact linked with the relay;
and 4, step 4: and the signal of the first input end of the controller is 1, and the signal of the first output end is judged to be 0 according to the program logic of the controller, so that the electromagnetic valve is powered off, and the oil way is cut off.
In the step 4, when the current of the relay loop is too large, the overcurrent protection circuit breaker trips in a protective mode, so that the auxiliary contact linked with the overcurrent protection circuit breaker is disconnected, the signal disconnection of the second input end of the controller is 0, the second output end is 1, and the trip alarm is triggered.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, after the hose is broken, the oil cannot overflow through the protection of the sleeve, so that the occurrence of fire accidents is avoided.
2. The invention can control the opening and closing of the oil system pipeline by accommodating the overflowing oil and controlling the weight of the overflowing oil, is suitable for the actual use scene of installing a plurality of hard pipes side by side, and further avoids dangerous accidents caused by the leakage of the oil on site.
The invention can contain leaked oil, control the shape and position change of the hose by the quantitative condition of the leaked oil and control the opening and closing of the oil in the system in the hose by the control loop so as to prevent the oil from leaking out in large quantity and various safety accidents.
Drawings
FIG. 1 is a schematic view of the construction of the leak prevention device for a rupture hose of the present invention;
FIG. 2 is a schematic view showing the construction of an oil path closing control unit in the leakage preventing device for the burst hose of the present invention;
FIG. 3 is a side view showing the installation of an oil path closing control unit in the leakage preventing device for the burst hose of the present invention;
FIG. 4 is a schematic view of an electric circuit of an oil path closing control assembly in the leakage preventing device of the burst hose of the present invention;
FIG. 5 is a schematic view of the construction of embodiment 2 of the leak prevention device for a rupture hose of the present invention;
fig. 6 is a schematic view showing the construction of embodiment 3 of the leakage preventing means for the burst hose of the present invention.
In the figure, 1 hose, 2 sleeve pipes, 21 pipe joints, 3 hard pipes, 4 exhaust holes, 5 stop valves, 6 first hoops, 7 second hoops, 8 fan-shaped sections, 9 double-end hoops, 10 conductor sleeves, 11 guide pipes, 12 guide lines, 13 controllers, 14 power supplies, 15 trip alarms, 16 central monitoring rooms, 17 drainage pipes, 18 hollow counterweights, 19 electric control valves, 20 boxes, K relays, Y electromagnetic valves, K1 contacts, KQ auxiliary contacts and Q overcurrent protection circuit breakers are arranged.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, a leakage-proof device for a broken hose includes a hose 1, a sleeve 2, a hard tube 3, an exhaust hole 4, a first anchor ear 6, a second anchor ear 7 and an oil passage closing control component; the hose comprises a hose 1, a sleeve 2, a first anchor ear 6, a second anchor ear 7, a hose connector 21, a second anchor ear 6, a third anchor ear 7, a fourth anchor ear, a fifth anchor ear, a sixth anchor ear and a sixth anchor ear, wherein the hose connector 21 is arranged at each end of the hose 1; the hard pipe 3 is vertically arranged, the upper end of the hard pipe 3 is connected with one end of the hose 1 through the pipe joint 21, the other end of the hose 1 is connected to the top of the fan-shaped section 8 of the continuous casting machine, the height of the hard pipe connecting end of the hose 1 is higher than that of the fan-shaped section connecting end, the upper part of the hose 1 is in arc-shaped bent suspension arrangement, and the top end of the sleeve 2 is provided with an exhaust hole 4 which is positioned above the top of the hose 1; the oil circuit closing control assembly is arranged on the sleeve 2 and is positioned at the joint of the hose 1 and the hard pipe 3.
Preferably, the sleeve 2 can be made of plastic materials or other materials, and the size of the space between the sleeve 2 and the hose 1 can be adjusted along with the change of the diameter of the sleeve 2, so that the leaked liquid can be contained between the sleeve 2 and the hose 1 in an atmospheric state and does not leak. The length of the sleeve 2 may be greater than the entire length of the hose 1 so that both ends of the sleeve 2 are in contact with the nipples 21 at both ends of the hose 1.
The pipe orifice of the hard pipe 3 is vertically installed upwards, the installation position of the hard pipe 3 keeps a relative distance with the executive component and is connected with the pipe joints 21 of the hose 1, so that the two pipe joints 21 of the hose 1 have height difference, and the height difference can be adjusted through the length of the hose 1 and the vertical height of the hard pipe 3.
Referring to fig. 2 to 4, the oil circuit closing control assembly includes a double-ended bayonet clamp 9, a conductor sleeve 10, a conduit 11, a lead 12, a controller 13, a power supply 14, a relay K and an electromagnetic valve Y; the two ends of the double-end bayonet hoop 9 are of split ring structures and are respectively sleeved on the sleeve 2, the interior of the sleeve 2 is smooth up and down, the conductor sleeve 10 is sleeved on the sleeve 2 and is positioned below the split ring on the double-end bayonet hoop 9, the conduit 11 is arranged between the upper suspension part of the hose 1 and the hard pipe 3, and the conduit 11 and the conductor sleeve 10 are respectively provided with a lead 12 and are connected through the lead 12; a power supply 14 is connected with a first input end of a controller 13 through a conduit 11 and a lead 12 on a conductor sleeve 10 by a relay K to form a relay loop; the solenoid valve Y is connected between the oil supply line and the first output terminal of the controller 13, and constitutes a solenoid valve control circuit.
Because the number of the continuous casting fan-shaped sections 8 is large, the grouping number of the hoses 1 is also large, the number of the corresponding hard tubes 3 is also arranged in rows, the guide pipe 11 is vertically arranged with the hard tubes 3, so that the guide pipe 11 can be simultaneously contacted and connected with the hard tubes 3 arranged in multiple rows, the number of wires for controlling a loop can be reduced, and the effect that the conductor sleeve 10 on the sleeve 2 can be contacted with the guide pipe 11 and form a loop after any hose 1 limited by the double-end bayonet hoops 9 falls off is realized by utilizing one guide pipe 11 vertical to the hard tubes 3.
Preferably, the conductor sheath 10 and the conduit 11 can be made of metal sheet or metal woven mesh conductor, etc. to achieve good conduction.
Preferably, the power supply 14 may employ a 24 volt power supply system.
The oil circuit closing control assembly further comprises an overcurrent protection circuit breaker Q, one end of the overcurrent protection circuit breaker Q is connected with the second input ends of the power supply 14 and the controller 13 through an auxiliary contact KQ, the other end of the overcurrent protection circuit breaker Q is connected with the relay K, and the second output end of the controller 13 is externally connected with a tripping alarm 15 to form an overcurrent protection circuit.
The controller 13 is externally connected with a monitoring computer of the central monitoring room 16 in a wired or wireless mode, real-time communication can be realized through Ethernet, the state of an oil way is displayed in real time through a monitoring picture of the central monitoring room, once the Y state of the electromagnetic valve is changed, the picture is leaked oil to alarm, monitoring personnel can timely find and inform maintenance personnel to handle the oil way, and further expansion of accidents is avoided.
The aperture of the exhaust hole 4 is larger than the pipe diameter of the sleeve 2, so that the smooth exhaust of the sleeve 2 can be ensured.
Referring to fig. 5, the leakage preventing device for a rupture hose further comprises a stop valve 5 and a drainage tube 17, the stop valve 5 is disposed on the hard tube 3, a hollow counterweight 18 is disposed at the end of the valve handle of the stop valve 5, one end of the drainage tube 17 is connected to the upper portion of the casing 2, and the other end of the drainage tube 17 is directly connected to the hollow counterweight 18.
Referring to fig. 6, the leakage preventing device for the burst hose further comprises an electrical control valve 19, a box body 20 and a drainage tube 17, wherein the electrical control valve 19 is disposed on the hard tube 3, the box body 20 is disposed outside the electrical control valve 19, one end of the drainage tube 17 is connected to the box body 20, the other end of the drainage tube 17 is connected to the upper portion of the casing 2, and a pair of electrical contacts are disposed in the box body 20 and located at the upper portion and the lower portion of the box body 20.
Referring to fig. 1 to 4, a method for preventing leakage of a burst hose includes the steps of:
step 1: the hose 1 is broken, the oil leaks from the hose 1 and is confined in the sleeve 2, and the air in the sleeve 2 is discharged through the exhaust hole 4.
Step 2: when a certain amount of oil liquid in the sleeve 2 is reserved, the weight of the whole sleeve 2 rises along with oil leakage and is stressed and deviated to the opening reverse side of the double-head bayonet hoop 9, so that the sleeve 2 is separated from the double-head bayonet hoop 9, and the conductor sleeve 10 leans against the guide pipe 11.
And step 3: the lead 12 on the guide pipe 11 is contacted with the lead 12 on the conductor sleeve 10 to form a control loop, the relay loop is closed, and the relay K is electrified to close the contact K1 linked with the relay K.
And 4, step 4: the signal of the first input end I0.0 of the controller 13 is 1, and according to the program logic of the controller 13, the signal of the first output end Q0.0 is judged to be 0, the electromagnetic valve Y is powered off, and the oil way is cut off, so that the oil leakage condition is controlled.
In the step 1, if the lower part of the hose 1 is broken, the liquid level of the oil liquid rises from bottom to top in the sleeve 2, if the higher part of the hose 1 is broken, the oil liquid flows into the lower part of the hose 1 from the higher part, and the air in the sleeve 2 is exhausted from the exhaust hole 4, so the exhaust hole 4 must be above the highest part of the hose 1 to prevent the oil liquid from overflowing from the exhaust hole 4 when the oil liquid flows downwards from the higher part after one end of the high-position pipe joint 21 of the hose 1 is broken.
In the step 4, when the current of the relay loop is too large, the overcurrent protection circuit breaker Q trips protectively, so that the auxiliary contact KQ linked with the overcurrent protection circuit breaker Q is disconnected, the signal of the second input end I0.1 of the controller 13 is disconnected to 0, the second output end M0.0 is set to 1, and the 24-volt trip alarm 15 is triggered.
Example 1:
use many hydraulic pressure pipes control scene on the sector section of smelting trade conticaster body as the example, sector section of conticaster is by pneumatic cylinder control roll gap and control drive roller frictional force size, and the pneumatic cylinder is on the upper portion of sector section, if the hydraulic pressure hose that the pneumatic cylinder is connected takes place to break, and fluid is direct to be spilt on the red hot slab in sector section, leads to the fire incident.
In the invention, the hose 1 connected with the hydraulic cylinder is vertically installed, one end of the hose 1 is connected with the hard pipe 3, the installation position of the hard pipe 3 is outside the installation area of the fan-shaped section 8, and the height of the pipe orifice at the high position of the hard pipe 3 is moderate. In order to realize that the operator can timely judge which hose 1 has a problem, a plurality of wires 12 are respectively connected with the conductor sleeve 10 on each hard pipe 3. If the hose 1 is broken, oil leaks out and is limited by the sleeve 2 wrapped outside the hose 1, the oil is limited in the sleeve 2, if the hose 1 is broken at the lowest point, the liquid level of the oil in the sleeve 2 from bottom to top rises, and if the hose 1 is broken at one end of the high pipe joint 21, the leaked oil rises from the upper pipe joint 21 to the liquid level of the upper arc section of the hose 1 and flows from the arc section to the lower part of the hose 1. When the space between the sleeve 2 and the hose 1 is filled with oil, air is discharged from the exhaust hole 4 at the highest position of the sleeve 2. When a certain amount of oil liquid is reserved in the sleeve 2, the weight of the whole hose 1 rises, the hose 1 is stressed and deviated towards the reverse side of the bayonet of the double-end bayonet hoop 9, when the hose 1 at a high position cannot be controlled by the frictional force of the bayonet of the double-end bayonet hoop 9, the double-end bayonet hoop 9 is separated from the hose 1 vertical to the upper portion, the vertical hose 1 is converted into a bending state, the conductor sleeve 10 below the bayonet of the double-end bayonet hoop 9 directly leans against the guide pipe 11, the guide wire 12 on the guide pipe 11 and the guide wire 12 on the conductor sleeve 10 form a control loop, the conductor sleeve 10 is in contact with the guide pipe 11 to enable a channel of the input module to be conducted, an input signal of the first input end is 1, then the controller 13 judges an output instruction of the first output end according to the programmed program logic, the output signal is 0. Meanwhile, the controller 13 and the monitoring computer of the central monitoring room 16 are communicated in real time through the Ethernet, the monitoring picture displays the oil way state in real time, once the Y state of the electromagnetic valve is changed, the picture oil leakage alarm is given, and monitoring personnel can find out and inform maintenance personnel to handle the oil way in time, so that the accident is prevented from further expanding.
referring to fig. 5, the hose 1 connected with the hydraulic cylinder is vertically installed, one end of the hose 1 is connected with the hard pipe 3, the installation position of the hard pipe 3 is outside the installation area of the segment 8, and the height of the pipe orifice at the high position of the hard pipe 3 is moderate. The drainage pipe 17 is connected to the relatively high position of the sleeve 2, the relatively high position indicates the proportion of the overflow quantity in the sleeve 2 to the accommodation quantity of the hollow balance weight 18, namely the overflow quantity does not exceed the accommodation quantity of the hollow balance weight 18, and the stop valve 5 can meet the closing premise. The tail end of a valve handle of the stop valve 5 is provided with a hollow counter weight 18, the drainage tube 17 is directly communicated with the hollow counter weight 18, when oil in the sleeve 2 flows out of the hollow counter weight 18, the hollow counter weight 18 is forced to drive the valve handle of the stop valve 5 in an open state, and the stop valve 5 is closed.
referring to fig. 6, the hose 1 connected with the hydraulic cylinder is vertically installed, one end of the hose 1 is connected with the hard pipe 3, the installation position of the hard pipe 3 is outside the installation area of the segment 8, and the height of the pipe orifice at the high position of the hard pipe 3 is moderate. The drainage pipe 17 is connected to the relatively high position of the sleeve 2, the relatively high position indicates the proportion of the overflow quantity in the sleeve 2 to the accommodation quantity of the hollow balance weight 18, namely the overflow quantity can meet the contact guiding requirement. The stop valve 5 is replaced by an electric control valve 19, a box body 20 is arranged near the electric control valve 19, the drainage pipe 17 is communicated with the box body 20, an upper pair of electric contacts and a lower pair of electric contacts are arranged in the box body 20, when the oil liquid in the sleeve 2 flows out of the box body 20, the oil liquid is used as a conductor connecting contact from bottom to top, and the electric control valve 19 is closed (or a system main valve can be directly controlled).
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A leak-proof device for a rupture hose, comprising: the device comprises a hose (1), a sleeve (2), a hard pipe (3), an exhaust hole (4), a first hoop (6), a second hoop (7) and an oil circuit closing control assembly; the hose clamp comprises a hose (1), a sleeve (2), a first anchor ear (6), a second anchor ear (7), a sleeve (2), a second anchor ear (2), a third anchor ear (7), a fourth anchor ear (2), a fifth anchor ear (2), a sixth anchor ear (6), a fifth anchor ear (2), a sixth anchor ear (7), a sixth anchor ear (6), a sixth anchor ear (7), a sixth anchor ear (2), a; the hard pipe (3) is vertically arranged, the upper end of the hard pipe (3) is connected with one end of the hose (1) through a pipe joint (21), the other end of the hose (1) is connected to the top of a fan-shaped section (8) of the continuous casting machine, the height of the hard pipe connecting end of the hose (1) is higher than that of the fan-shaped section connecting end, the upper portion of the hose (1) is in arc-shaped bent suspension arrangement, and the top end of the sleeve (2) is provided with an exhaust hole (4) which is positioned above the top of the hose (1); the oil circuit closing control assembly is arranged on the sleeve (2) and is positioned at the joint of the hose (1) and the hard pipe (3).
2. A leak prevention apparatus for a rupture hose as set forth in claim 1, wherein: the oil circuit closing control assembly comprises a double-end bayonet hoop (9), a conductor sleeve (10), a guide pipe (11), a lead (12), a controller (13), a power supply (14), a relay K and an electromagnetic valve Y; the two ends of the double-end bayonet hoop (9) are of open-loop structures and are respectively sleeved on the sleeve (2) to enable the interior of the sleeve (2) to be smooth up and down, the conductor sleeve (10) is sleeved on the sleeve (2) and is positioned below the split ring on the double-end bayonet hoop (9), the conduit (11) is arranged between the upper suspension part of the hose (1) and the hard pipe (3), and the conduit (11) and the conductor sleeve (10) are respectively provided with a lead (12) and are connected through the lead (12); a power supply (14) is connected with a first input end of a controller (13) through a relay K through a guide pipe (11) and a lead (12) on a conductor sleeve (10) to form a relay loop; the solenoid valve Y is connected between the oil supply pipeline and the first output end of the controller (13) to form a solenoid valve control loop.
3. A leak prevention apparatus for a rupture hose as set forth in claim 2, wherein: the guide pipe (11) is perpendicular to the hard pipes (3), so that the guide pipe (11) can be simultaneously contacted and connected with the hard pipes (3) arranged in multiple rows.
4. A leak prevention apparatus for a rupture hose as set forth in claim 2, wherein: the oil circuit closing control assembly further comprises an overcurrent protection circuit breaker Q, one end of the overcurrent protection circuit breaker Q is connected with a second input end of the power supply (14) and the controller (13) through an auxiliary contact KQ, the other end of the overcurrent protection circuit breaker Q is connected with the relay K, and a second output end of the controller (13) is externally connected with a tripping alarm (15) to form an overcurrent protection loop.
5. A leak prevention apparatus for a rupture hose as set forth in claim 2, wherein: the controller (13) is externally connected with a monitoring computer of a central monitoring room (16).
6. A leak prevention apparatus for a rupture hose as set forth in claim 1, wherein: the aperture of the exhaust hole (4) is larger than the pipe diameter of the sleeve (2).
7. A leak prevention apparatus for a rupture hose as set forth in claim 1, wherein: the leakage-proof device for the broken hose further comprises a stop valve (5) and a drainage tube (17), the stop valve (5) is arranged on the hard tube (3), a hollow counterweight (18) is arranged at the tail end of a valve handle of the stop valve (5), one end of the drainage tube (17) is connected to the upper portion of the sleeve (2), and the other end of the drainage tube (17) is directly communicated with the hollow counterweight (18).
8. A leak prevention apparatus for a rupture hose as set forth in claim 1, wherein: the leakage-proof device for the rupture hose further comprises an electric control valve (19), a box body (20) and a drainage tube (17), wherein the electric control valve (19) is arranged on the hard tube (3), the box body (20) is arranged on the outer side of the electric control valve (19), one end of the drainage tube (17) is directly communicated with the box body (20), the other end of the drainage tube (17) is connected to the upper portion of the sleeve (2), and a pair of electric contacts (21) is arranged in the box body (20).
9. A method of preventing leakage using the leakage preventing means for the burst hose of any one of claims 1 to 8, characterized by: the method comprises the following steps:
step 1: the hose (1) is broken, oil leaks out of the hose (1) and is limited in the sleeve (2), and air in the sleeve (2) is exhausted from the exhaust hole (4);
step 2: the weight of the whole sleeve (2) rises due to oil leakage and is reversely stressed and deviated towards the opening of the double-end bayonet hoop (9), so that the sleeve (2) is separated from the double-end bayonet hoop (9), and the conductor sleeve (10) leans against the guide pipe (11);
and step 3: a lead (12) on the conduit (11) is contacted with a lead (12) on the conductor sleeve (10) to form a control loop, the relay loop is closed, and the relay K is electrified to close a contact K1 linked with the relay K;
and 4, step 4: the signal of the first input end I0.0 of the controller (13) is 1, and the signal of the first output end Q0.0 is judged to be 0 according to the program logic of the controller (13), the electromagnetic valve Y is de-energized, and the oil way is cut off.
10. A method of preventing leakage of a rupture hose as set forth in claim 9, wherein: in the step 4, when the current of the relay loop is too large, the overcurrent protection circuit breaker Q trips in a protective mode, the auxiliary contact KQ linked with the overcurrent protection circuit breaker Q is disconnected, the signal of the second input end I0.1 of the controller (13) is disconnected to be 0, the second output end M0.0 is set to be 1, and the tripping alarm (15) is triggered.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810676949.1A CN110645438B (en) | 2018-06-27 | 2018-06-27 | Leak-proof device and method for rupture hose |
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| CN201810676949.1A CN110645438B (en) | 2018-06-27 | 2018-06-27 | Leak-proof device and method for rupture hose |
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| CN110645438A true CN110645438A (en) | 2020-01-03 |
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2018
- 2018-06-27 CN CN201810676949.1A patent/CN110645438B/en active Active
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|---|---|---|---|---|
| US7100701B2 (en) * | 2001-01-12 | 2006-09-05 | Fogtec Brandschutz Gmbh & Co. Kg | Fire-fighting device |
| CN2578809Y (en) * | 2002-11-15 | 2003-10-08 | 南通市飞鲸发电设备厂 | High-pressure fuel leakage alarming devices |
| KR20050119862A (en) * | 2004-06-17 | 2005-12-22 | 현대자동차주식회사 | A breakage sensing device of a hose |
| CN201574858U (en) * | 2009-12-25 | 2010-09-08 | 上海黄河仪器仪表厂有限公司 | High-pressure oil leakage warner of internal combustion engine |
| CN204164675U (en) * | 2014-10-28 | 2015-02-18 | 乔琳 | People's air defense drainage pipe leakage preventer |
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| CN110645438B (en) | 2021-02-19 |
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