CN110594241A - Pressurizer of ladle rotation hydraulic system of continuous casting machine - Google Patents
Pressurizer of ladle rotation hydraulic system of continuous casting machine Download PDFInfo
- Publication number
- CN110594241A CN110594241A CN201910913279.5A CN201910913279A CN110594241A CN 110594241 A CN110594241 A CN 110594241A CN 201910913279 A CN201910913279 A CN 201910913279A CN 110594241 A CN110594241 A CN 110594241A
- Authority
- CN
- China
- Prior art keywords
- valve
- energy accumulator
- type energy
- pressure
- oil supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 32
- 239000010985 leather Substances 0.000 claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 239000003921 oil Substances 0.000 description 128
- 239000007789 gas Substances 0.000 description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 238000004146 energy storage Methods 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 239000010720 hydraulic oil Substances 0.000 description 11
- 238000011049 filling Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A pressurizer of a ladle rotation hydraulic system of a continuous casting machine belongs to the technical field of continuous casting machine hydraulic equipment. The technical scheme is as follows: one end of a large-flow oil supply pipeline is connected with an oil delivery pipeline of a hydraulic pump of the ladle turret, the other end of the large-flow oil supply pipeline is respectively connected with a ladle lifting hydraulic device and a tundish lifting hydraulic device, the large-flow oil supply pipeline is connected with one end of a constant-pressure oil supply pipeline through a pressure stabilizing isolation unit, the other end of the large-flow oil supply pipeline is respectively connected with a ladle nozzle hydraulic device and a ladle turret rotating hydraulic device, a plurality of leather bag type energy accumulator units are connected in parallel on the large-flow oil supply pipeline, and a plurality of piston type energy accumulator units are connected in. The invention adopts the leather bag type energy accumulator and the piston type energy accumulator to respectively supply oil to the hydraulic devices with different pressure requirements of the ladle turret, thereby playing respective advantages, ensuring the emergency treatment of the hydraulic equipment in the power failure state, avoiding the production accident and ensuring the smooth production and the safe production.
Description
Technical Field
The invention relates to a device for maintaining pressure of a ladle rotary hydraulic system of a continuous casting machine, belonging to the technical field of continuous casting machine hydraulic equipment.
Background
The ladle rotary hydraulic system in the continuous casting machine of the steel plant is important continuous casting machine equipment. The ladle rotary hydraulic system mainly comprises a ladle lifting hydraulic device, a water gap hydraulic device, a ladle cover lifting rotary and rotary hydraulic device, a ladle rotary table rotary hydraulic device, a tundish lifting hydraulic device and the like. When actuating mechanisms of the ladle lifting hydraulic device and the tundish lifting hydraulic device work, large-flow hydraulic oil is needed for supplement in a short time; meanwhile, the nozzle hydraulic device, the ladle cover lifting rotation and rotation hydraulic device and the ladle turret rotation hydraulic device need long-time continuous and stable pressure when working, and can close the nozzle which is pouring when a hydraulic station stops pumping due to electrical reasons, and rotate the ladle turret by 180 degreesoOtherwise, the production accident of machine destruction and human death will occur. At present, a ladle rotary hydraulic system generally adopts the following two modes to ensure that a hydraulic system of the equipment keeps normal pressure, one mode adopts a large-flow hydraulic pump mode to ensure the supply of hydraulic oil, the method has high manufacturing cost and high energy consumption, and more importantly, the safety problem of temporary power failure cannot be solved; another way is to ensure the supply of oil by using a single bellows-type or piston-type accumulator, which has the disadvantage that the accumulator is charged in the event of a power failure, since the bellows-type accumulator is used mainly for maintaining the flow rate and cannot provide a constant pressure, whereas the piston-type accumulator can provide sufficient pressure but cannot ensure the flow rateThe pressure oil in the container can not close the ladle nozzle and make the ladle rotate 180 DEGoThus causing a production accident.
The problem of stable pressure maintaining of a ladle rotary hydraulic system of a continuous casting machine has not been solved effectively so far, and the currently adopted pressure maintaining method and equipment can not provide hydraulic oil supply with long-term stable flow and constant pressure for the ladle rotary hydraulic system, so that the serious potential safety hazard exists particularly in power failure, and the solution is urgently needed to ensure the smooth production and the safe production.
Disclosure of Invention
The invention aims to provide a pressure maintaining device of a ladle rotary hydraulic system of a continuous casting machine, which can supplement large-flow hydraulic oil in a short time when actuating mechanisms of a ladle lifting hydraulic device and a tundish lifting hydraulic device work, can ensure the long-time continuous and stable pressure of a nozzle hydraulic device and a ladle rotary table rotary hydraulic device, and can timely close a ladle nozzle and rotate a ladle by 180 degrees when power failure occursoSo as to avoid production accidents and ensure smooth production and safe production.
The technical scheme for solving the technical problems is as follows:
the pressure maintaining device of the ladle rotary hydraulic system of the continuous casting machine comprises a large-flow oil supply pipeline, a constant-pressure oil supply pipeline, a pressure stabilizing isolation unit, a bladder type energy accumulator unit and a piston type energy accumulator unit, wherein one end of the large-flow oil supply pipeline is connected with an oil conveying pipeline of a hydraulic pump of a ladle rotary table, the other end of the large-flow oil supply pipeline is respectively connected with a ladle lifting hydraulic device and a tundish lifting hydraulic device, the large-flow oil supply pipeline is connected with one end of the constant-pressure oil supply pipeline through the pressure stabilizing isolation unit, the other end of the constant-pressure oil supply pipeline is respectively connected with a ladle nozzle hydraulic device and a ladle rotary hydraulic device, the large-flow oil supply pipeline is connected with the bladder type energy accumulator units in parallel, and the constant-pressure oil supply.
Above-mentioned pressurizer of conticaster ladle gyration hydraulic system, the steady voltage isolation unit comprises steady voltage check valve, steady voltage overflow valve, and the one end of steady voltage check valve is connected with large-traffic oil supply line, and the other end of steady voltage check valve is connected with constant voltage oil supply line, and the flow direction of steady voltage check valve is relative with constant voltage oil supply line, and the one end of steady voltage overflow valve is connected with the outlet pipeline of steady voltage check valve, and the other end of steady voltage overflow valve is connected with oil return line.
Above-mentioned conticaster ladle gyration hydraulic system's pressurizer, leather bag formula energy storage ware unit includes leather bag formula energy storage ware and leather bag formula energy storage ware the control unit, leather bag formula energy storage ware the control unit includes the oil feed stop valve, the bleeder valve, the relief valve, leather bag formula energy storage ware is connected with large-traffic oil supply pipeline through the oil feed stop valve, the one end of bleeder valve is connected on the pipeline between leather bag formula energy storage ware and the oil feed stop valve, the other end and the oil extraction pipeline of bleeder valve are connected, the relief valve connects in parallel at the both ends of bleeder valve.
Above-mentioned pressurizer of conticaster ladle gyration hydraulic system, piston accumulator unit includes energy storage unit and gas tank group, and the energy storage unit includes piston accumulator, control check valve and piston accumulator control unit, and piston accumulator is connected with the constant pressure oil supply line through piston accumulator control unit, and the one end of control check valve is connected with piston accumulator control unit, and the other end of control check valve is connected with returning oil pipe way, and the gas tank group is connected with piston accumulator.
Above-mentioned pressurizer of conticaster ladle gyration hydraulic system, the piston energy storage ware control unit of energy storage ware unit is including controlling the overflow valve, controlling the return oil valve, controlling the oil feed valve, and control oil feed valve connects between constant pressure oil supply pipeline and piston energy storage ware, and the one end of controlling the return oil valve is connected on the pipeline between piston energy storage ware and the control oil feed valve, and the other end of controlling the return oil valve is connected with back the oil pipe way, and the control overflow valve is parallelly connected at the both ends of controlling the return oil valve.
Above-mentioned conticaster ladle gyration hydraulic system's pressurizer, the gas pitcher group includes gas holder, manometer, gas safety valve, aerifys and detects pipeline, gas valve, pressure measurement valve block, and wherein the gas valve combination is in pressure measurement valve block, and the gas valve that passes through pressure measurement valve block after a plurality of gas holders are parallelly connected is connected with the piston accumulator of energy storage unit, aerifys and detects the pipe connection on the connecting pipeline between gas holder and piston accumulator, still installs manometer and gas safety valve on the connecting pipeline between gas holder and the piston accumulator.
The invention has the beneficial effects that:
the large-flow oil supply pipeline is connected with the plurality of bag type energy accumulator units, so that large-flow oil supply can be provided for the steel ladle lifting hydraulic device and the tundish lifting hydraulic device, and the oil supply flow is ensured; a plurality of piston type energy accumulator units are connected in parallel on the constant pressure oil supply pipeline, constant oil pressure can be provided for a hydraulic device of a ladle water gap and a rotary hydraulic device of a ladle turret, and long-time continuous and stable pressure is guaranteed.
The invention adopts the large-flow oil supply pipeline and the constant-pressure oil supply pipeline to supply oil to the hydraulic devices with different pressure requirements of the ladle turret respectively, not only exerts the advantages of the bladder type energy accumulator and the piston type energy accumulator, but also ensures the emergency treatment of the hydraulic equipment in the power failure state, can close the ladle nozzle in time and rotate the ladle by 180 DEG CoSo as to avoid production accidents and ensure smooth production and safe production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a voltage stabilizing isolation unit;
FIG. 3 is a schematic diagram of a bladder accumulator unit;
fig. 4 is a schematic view of the piston accumulator unit.
The figures are labeled as follows: the device comprises a large-flow oil supply pipeline 1, a constant-pressure oil supply pipeline 2, an oil return pipeline 3, an oil discharge pipeline 4, a pressure stabilizing isolation unit 5, a leather bag type energy accumulator unit 6, a piston type energy accumulator unit 7, a pressure stabilizing one-way valve 8, a pressure stabilizing overflow valve 9, a leather bag type energy accumulator 10, a leather bag type energy accumulator control unit 11, an oil inlet stop valve 12, an oil drain valve 13, a safety valve 14, an energy accumulator unit 15, an air tank group 16, a piston type energy accumulator 17, a piston type energy accumulator control unit 18, a control one-way valve 19, a control overflow valve 20, a control oil return valve 21, a control oil inlet valve 22, an air storage tank 23, a pressure gauge 24, an air safety valve 25, an inflation and detection pipeline 26, an air valve 27.
Detailed Description
The invention is composed of a large-flow oil supply pipeline 1, a constant-pressure oil supply pipeline 2, an oil return pipeline 3, an oil discharge pipeline 4, a pressure stabilizing isolation unit 5, a leather bag type energy accumulator unit 6 and a piston type energy accumulator unit 7.
Fig. 1 shows that one end of a large-flow oil supply pipeline 1 (i.e. a P1-P2 pipeline in the figure) is connected with an oil delivery pipeline of a hydraulic pump of a ladle turret, the other end of the large-flow oil supply pipeline 1 is respectively connected with a ladle lifting hydraulic device and a tundish lifting hydraulic device, and a plurality of bladder type energy accumulator units 6 are connected in parallel on the large-flow oil supply pipeline 1, so that large-flow oil supply can be provided for the ladle lifting hydraulic device and the tundish lifting hydraulic device, and the oil supply flow is ensured.
Fig. 1 shows that a large-flow oil supply pipeline 1 is connected with one end of a constant-pressure oil supply pipeline 2 (namely a PE1-PE2 pipeline in the figure) through a pressure-stabilizing isolation unit 5, the other end of the constant-pressure oil supply pipeline 2 is respectively connected with a ladle nozzle hydraulic device and a ladle turret rotary hydraulic device, and a plurality of piston type energy accumulator units 7 are connected in parallel on the constant-pressure oil supply pipeline 2, so that constant oil pressure can be provided for the ladle nozzle hydraulic device and the ladle turret rotary hydraulic device, and long-time continuous and stable pressure is ensured.
Fig. 1 and 2 show that the voltage stabilization isolation unit 5 consists of a voltage stabilization one-way valve 8 and a voltage stabilization overflow valve 9. One end of the pressure stabilizing one-way valve 8 is connected with the large-flow oil supply pipeline 1, and the other end of the pressure stabilizing one-way valve 8 is connected with the constant-pressure oil supply pipeline 2. The hydraulic oil flows to the constant pressure oil supply pipeline 2 through the pressure stabilizing check valve 8, and meanwhile, the pressure stabilizing check valve 8 prevents the hydraulic oil from flowing back from the constant pressure oil supply pipeline 2 to the large flow oil supply pipeline 1. One end of the pressure stabilizing overflow valve 9 is connected with an outlet pipeline of the pressure stabilizing one-way valve 8, and the other end of the pressure stabilizing overflow valve 9 is connected with the oil return pipeline 3. The pressure stabilizing overflow valve 9 plays a role of pressure stabilizing overflow.
Fig. 1 and 3 show that a plurality of bladder type energy accumulator units 6 are connected in parallel on the large-flow oil supply pipeline 1, and the hydraulic oil pump and the bladder type energy accumulator units 6 supply oil together in the working process, so that enough oil supply flow can be provided for the large-flow oil supply pipeline 1, the oil supply flow is stabilized, and the production requirement is met.
The structure of a plurality of leather bag type energy accumulator units 6 is the same, leather bag type energy accumulator unit 6 includes leather bag type energy accumulator 10 and leather bag type energy accumulator control unit 11, and leather bag type energy accumulator control unit 11 includes oil feed stop valve 12, bleeder valve 13, relief valve 14. The leather bag type energy accumulator 10 is connected with the large-flow oil supply pipeline 1 through the oil inlet stop valve 12, one end of the oil drain valve 13 is connected to a pipeline between the leather bag type energy accumulator 10 and the oil inlet stop valve 12, the other end of the oil drain valve 13 is connected with the oil drain pipeline 4, and the safety valves 14 are connected to two ends of the oil drain valve 13 in parallel.
Fig. 1 and 4 show that two piston type energy accumulator units 7 are connected with a constant pressure oil supply pipeline 2 in parallel, and are used for providing constant oil pressure for a ladle nozzle hydraulic device and a ladle turret rotary hydraulic device together, so that long-time continuous and stable pressure is ensured. The two piston accumulator units 7 are identical in structure and respectively comprise an accumulator unit 15 and a gas tank group 16.
Fig. 1, 4 show that the accumulator unit 15 comprises a piston accumulator 17, a piston accumulator control unit 18 and a control check valve 19. The piston type energy accumulator 17 is connected with the constant pressure oil supply pipeline 2 through a piston type energy accumulator control unit 18, one end of a control one-way valve 19 is connected with the piston type energy accumulator control unit 18, the other end of the control one-way valve 19 is connected with the oil return pipeline 3, and the gas tank group 16 is connected with the piston type energy accumulator 17. The control one-way valve 19 is used for isolating the oil return pipeline 3 of the hydraulic system from the piston type energy accumulator control unit 18 and preventing the hydraulic oil in the oil return pipeline 3 from backflushing to the piston type energy accumulator control unit 18.
Fig. 1 and 4 show that the piston accumulator control unit 18 of the accumulator unit 15 comprises a control overflow valve 20, a control return valve 21 and a control inlet valve 22. The control oil inlet valve 22 is connected between the constant pressure oil supply pipeline 2 and the piston type energy accumulator 17, one end of the control oil return valve 21 is connected on a pipeline between the piston type energy accumulator 17 and the control oil inlet valve 22, the other end of the control oil return valve 21 is connected with the oil return pipeline 3, and the control overflow valves 20 are connected in parallel at two ends of the control oil return valve 21.
Fig. 1 and 4 show that the gas tank group 16 comprises a gas tank 23, a pressure gauge 24, a gas safety valve 25, an inflation and detection pipeline 26, a gas valve 27 and a pressure measuring valve block 28, wherein the gas valve 27 is combined in the pressure measuring valve block 28. A plurality of air storage tanks 23 are connected in parallel and then are connected with a piston type energy accumulator 17 of an energy accumulator unit 15 through a gas valve 27 of a pressure measuring valve block 28, an inflation and detection pipeline 26 is connected with a connecting pipeline between the air storage tanks 23 and the piston type energy accumulator 17, and a pressure gauge 24 and a gas safety valve 25 are further installed on the connecting pipeline between the air storage tanks 23 and the piston type energy accumulator 17. The gas storage tank 23 and the piston type energy accumulator 17 can be filled with gas through a gas filling and detecting pipeline 26, the clean nitrogen is generally adopted, the pressure gauge 24 displays the pressure of the gas, and the gas safety valve 25 is used for limiting the pressure of the gas and plays a safety role.
The oil return pipeline 3 and the oil discharge pipeline 4 are pipelines of a hydraulic oil return tank, the oil discharge pipeline 4 is used for returning oil when a hydraulic execution element in a hydraulic system works, the oil return pipeline 3 is used for returning oil of an energy accumulator group and some valves frequently, a large amount of hydraulic oil flows when the energy accumulator discharges oil, and only a small amount of valves return oil periodically.
The working process of the invention is as follows:
preparation work before operation:
(1) eight bladder type energy accumulators 10 in eight bladder type energy accumulator units 6 connected with a large-flow oil supply pipeline 1 in parallel are inflated, clean nitrogen is generally filled, the inflation pressure is 75% of the pressure of a hydraulic system of the ladle turret, and the nitrogen filling is carried out in the state that the pump of the ladle turret is stopped and the pressure is relieved. The inflation operation of each bladder accumulator unit 6 is performed according to the following operation steps:
before filling nitrogen, firstly, an oil inlet stop valve 12 and an oil drain valve 13 of a leather bag type energy accumulator control unit 11 are checked and confirmed to be closed, and then the leather bag type energy accumulator 10 is filled with nitrogen. And after nitrogen filling is finished, opening the oil inlet stop valve 12, starting a hydraulic pump of the ladle turret, and adjusting the pressure of the safety valve 14 after the system pressure is reached, wherein the pressure of the safety valve 14 is 120% of the pressure of the hydraulic system of the ladle turret.
(2) And (3) charging the two piston type energy accumulator units connected with the constant pressure oil supply pipeline 2 in parallel. The nitrogen is generally nitrogen, the nitrogen charging pressure is 75% of the pressure of a hydraulic system of the ladle turret, and the nitrogen charging is carried out in the state that the pump of the ladle turret is stopped and the pressure is relieved. The charging operation of each piston accumulator unit 7 is carried out according to the following operation steps:
and opening the control oil inlet valve 22 and the gas valve 27, closing the control oil return valve 21, filling nitrogen into the piston type energy accumulator 17 and the gas storage tank 23 through the gas filling and detecting pipeline 26, and adjusting the pressure of the gas safety valve 25 to be 120% of the nitrogen pressure. And after the nitrogen filling is finished, starting a hydraulic pump of the ladle turret, adjusting the pressure of the control overflow valve 20 to 120% of the pressure of the hydraulic system after the system pressure is reached.
And starting a hydraulic pump of the ladle turret, and adjusting the pressure of a pressure stabilizing overflow valve 9 of the pressure stabilizing isolation unit 5 to be 120% of the pressure of the hydraulic system after the system pressure is reached.
The device comprises a piston type energy accumulator control unit 18, a control one-way valve 19, a control overflow valve 20, a control oil return valve 21, a control oil inlet valve 22, an air storage tank 23, a pressure gauge 24, an air safety valve 25, an inflation and detection pipeline 26, an air valve 27 and a pressure measuring valve block 28.
The operation process comprises the following steps:
the hydraulic pump of the ladle turret is started, after the system pressure is reached, pressure oil of a pump set enters the high-flow oil supply pipeline 1, the eight bladder type energy accumulators 10 in the eight bladder type energy accumulator units 6 which are connected with the high-flow oil supply pipeline 1 in parallel are accumulated with energy (store high-pressure oil), the high-flow oil supply pipeline 1 supplies oil to the ladle lifting hydraulic device and the tundish lifting hydraulic device, and a large amount of hydraulic oil stored in the eight bladder type energy accumulator units 6 plays a role in pressure stabilization when an execution element works, so that the two hydraulic devices can work normally.
Meanwhile, the pressure oil of the large-flow oil supply pipeline 1 flows into the constant-pressure oil supply pipeline 2 through the constant-pressure isolation unit 5, and is matched with the constant-pressure oil supply pipeline 2Two piston type energy accumulator units 7 are connected in parallel for accumulating high-pressure oil, and the constant-pressure oil supply pipeline 2 is connected with the ladle nozzle hydraulic device and the ladle turret rotary hydraulic device, so that the two hydraulic devices can be ensured to normally operate under a long-time constant-pressure state, and the ladle nozzle can be closed and the ladle can be rotated by 180 degrees under the power failure stateoAnd production accidents are avoided.
One embodiment of the invention is as follows:
the model of the pressure stabilizing one-way valve 8 is M-SR25KE 00-1X;
the model DBDS30K1X/315 of the pressure stabilizing overflow valve 9;
the model of the leather bag type accumulator 10 is NXQ 1-100L/31.5-L;
the model of the oil inlet stop valve 12 is QJH32 WL;
the model number of the oil drain valve 13 is QJH 32F;
the model number of the safety valve 14 is DB20B 30/315;
the piston type accumulator 17 is SK210-100/2112A9-210 AAJ-AAE-25;
the model of the control one-way valve 19 is M-SR25KE 00-1X;
the model of the control overflow valve 20 is DB20B 30/315;
the control oil return valve 21 is QJH 32F;
the model of the control oil inlet valve 22 is QJH32 WL;
the model of the air storage tank 23 is TGS-299-100-40;
the model of the pressure gauge 24 is 1779, 0-25 MPa, G1/2 ";
the model number of the gas safety valve 25 is SAF32M12N210A + K409+ S309;
the gas valve 27 is model number QJH25 WL.
Claims (6)
1. The utility model provides a dwell device of conticaster ladle gyration hydraulic system which characterized in that: it comprises a large-flow oil supply pipeline (1), a constant-pressure oil supply pipeline (2), a pressure stabilizing isolation unit (5), a leather bag type energy accumulator unit (6) and a piston type energy accumulator unit (7), one end of a large-flow oil supply pipeline (1) is connected with an oil pipeline of a hydraulic pump of a ladle turret, the other end of the large-flow oil supply pipeline (1) is respectively connected with a ladle lifting hydraulic device and a tundish lifting hydraulic device, the large-flow oil supply pipeline (1) is connected with one end of a constant-pressure oil supply pipeline (2) through a voltage stabilizing isolation unit (5), the other end of the constant-pressure oil supply pipeline (2) is respectively connected with a ladle nozzle hydraulic device and the rotary hydraulic device of the ladle turret, a plurality of leather bag type energy accumulator units (6) are connected in parallel on the large-flow oil supply pipeline (1), and a plurality of piston type energy accumulator units (7) are connected in parallel on the constant-pressure oil supply pipeline (2).
2. The pressurizer of a ladle rotary hydraulic system of a continuous casting machine according to claim 1, characterized in that: the pressure stabilizing isolation unit (5) is composed of a pressure stabilizing one-way valve (8) and a pressure stabilizing overflow valve (9), one end of the pressure stabilizing one-way valve (8) is connected with the large-flow oil supply pipeline (1), the other end of the pressure stabilizing one-way valve (8) is connected with the constant-pressure oil supply pipeline (2), the flow direction of the pressure stabilizing one-way valve (8) is opposite to the constant-pressure oil supply pipeline (2), one end of the pressure stabilizing overflow valve (9) is connected with an outlet pipeline of the pressure stabilizing one-way valve (8), and the other end of the pressure stabilizing overflow valve (9) is connected with the oil return pipeline (3).
3. The pressurizer of a ladle rotary hydraulic system of a continuous casting machine according to claim 1, characterized in that: the leather bag type energy accumulator unit (6) comprises a leather bag type energy accumulator (10) and a leather bag type energy accumulator control unit (11), the leather bag type energy accumulator control unit (11) comprises an oil inlet stop valve (12), an oil drain valve (13) and a safety valve (14), the leather bag type energy accumulator (10) is connected with a large-flow oil supply pipeline (1) through the oil inlet stop valve (12), one end of the oil drain valve (13) is connected on a pipeline between the leather bag type energy accumulator (10) and the oil inlet stop valve (12), the other end of the oil drain valve (13) is connected with an oil drain pipeline (4), and the safety valve (14) is connected at two ends of the oil drain valve (13) in parallel.
4. The pressurizer of a ladle rotary hydraulic system of a continuous casting machine according to claim 1, characterized in that: the piston type energy accumulator unit (7) comprises an energy accumulator unit (15) and a gas tank set (16), the energy accumulator unit (15) comprises a piston type energy accumulator (17), a control one-way valve (19) and a piston type energy accumulator control unit (18), the piston type energy accumulator (17) is connected with a constant pressure oil supply pipeline (2) through the piston type energy accumulator control unit (18), one end of the control one-way valve (19) is connected with the piston type energy accumulator control unit (18), the other end of the control one-way valve (19) is connected with an oil return pipeline (3), and the gas tank set (16) is connected with the piston type energy accumulator (17).
5. The pressurizer of the ladle rotary hydraulic system of the continuous casting machine according to claim 4, is characterized in that: the piston type energy accumulator control unit (18) of the energy accumulator unit (15) comprises a control overflow valve (20), a control oil return valve (21) and a control oil inlet valve (22), wherein the control oil inlet valve (22) is connected between a constant-pressure oil supply pipeline (2) and the piston type energy accumulator (17), one end of the control oil return valve (21) is connected to a pipeline between the piston type energy accumulator (17) and the control oil inlet valve (22), the other end of the control oil return valve (21) is connected with the oil return pipeline (3), and the control overflow valve (29) is connected to two ends of the control oil return valve (21) in parallel.
6. The pressurizer of the ladle rotary hydraulic system of the continuous casting machine according to claim 4, is characterized in that: the gas tank group (16) comprises gas storage tanks (23), pressure gauges (24), gas safety valves (25), gas charging and detecting pipelines (26), gas valves (27) and pressure measuring valve blocks (28), wherein the gas valves (27) are combined in the pressure measuring valve blocks (28), the gas valves (27) of the gas storage tanks (23) which are connected in parallel are connected with piston type energy accumulators (17) of the energy accumulator unit (15) through the pressure measuring valve blocks (28), the gas charging and detecting pipelines (26) are connected with connecting pipelines between the gas storage tanks (23) and the piston type energy accumulators (17), and the pressure gauges (24) and the gas safety valves (25) are further installed on the connecting pipelines between the gas storage tanks (23) and the piston type energy accumulators (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913279.5A CN110594241A (en) | 2019-09-25 | 2019-09-25 | Pressurizer of ladle rotation hydraulic system of continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913279.5A CN110594241A (en) | 2019-09-25 | 2019-09-25 | Pressurizer of ladle rotation hydraulic system of continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594241A true CN110594241A (en) | 2019-12-20 |
Family
ID=68863321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910913279.5A Withdrawn CN110594241A (en) | 2019-09-25 | 2019-09-25 | Pressurizer of ladle rotation hydraulic system of continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056334A (en) * | 2019-12-31 | 2020-04-24 | 龙合智能装备制造有限公司 | Self-adaptive loading platform for integral loading of container |
| CN112560350A (en) * | 2020-12-22 | 2021-03-26 | 柳州钢铁股份有限公司 | Sudden accident prevention expansion control method and system for multi-flow square billet casting machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201502573U (en) * | 2009-09-18 | 2010-06-09 | 长沙矿冶研究院 | Deep sea water static pressure utilization device |
| EP2703651A2 (en) * | 2012-08-28 | 2014-03-05 | Hydac Technology Gmbh | Pressure accumulator assembly and device with such a pressure accumulator assembly |
| CN104514759A (en) * | 2014-12-30 | 2015-04-15 | 天津福云天翼科技有限公司 | High-flow separating accumulator group constant pressure regulating system |
| CN105156379A (en) * | 2015-10-14 | 2015-12-16 | 东北大学 | Energy-saving constant-pressure oil source system and control method thereof |
| CN107100903A (en) * | 2017-06-29 | 2017-08-29 | 中冶赛迪装备有限公司 | A kind of constant-pressure variable hydraulic power system |
| CN206605017U (en) * | 2017-03-27 | 2017-11-03 | 宣化钢铁集团有限责任公司 | A kind of six rollers two driving straightening hydraulic system |
| CN108679004A (en) * | 2018-07-30 | 2018-10-19 | 本钢板材股份有限公司 | A kind of hydraulic system energy accumulator station and the method using energy accumulator station inflated with nitrogen |
| CN210949371U (en) * | 2019-09-25 | 2020-07-07 | 宣化钢铁集团有限责任公司 | Pressurizer of ladle rotation hydraulic system of continuous casting machine |
-
2019
- 2019-09-25 CN CN201910913279.5A patent/CN110594241A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201502573U (en) * | 2009-09-18 | 2010-06-09 | 长沙矿冶研究院 | Deep sea water static pressure utilization device |
| EP2703651A2 (en) * | 2012-08-28 | 2014-03-05 | Hydac Technology Gmbh | Pressure accumulator assembly and device with such a pressure accumulator assembly |
| CN104514759A (en) * | 2014-12-30 | 2015-04-15 | 天津福云天翼科技有限公司 | High-flow separating accumulator group constant pressure regulating system |
| CN105156379A (en) * | 2015-10-14 | 2015-12-16 | 东北大学 | Energy-saving constant-pressure oil source system and control method thereof |
| CN206605017U (en) * | 2017-03-27 | 2017-11-03 | 宣化钢铁集团有限责任公司 | A kind of six rollers two driving straightening hydraulic system |
| CN107100903A (en) * | 2017-06-29 | 2017-08-29 | 中冶赛迪装备有限公司 | A kind of constant-pressure variable hydraulic power system |
| CN108679004A (en) * | 2018-07-30 | 2018-10-19 | 本钢板材股份有限公司 | A kind of hydraulic system energy accumulator station and the method using energy accumulator station inflated with nitrogen |
| CN210949371U (en) * | 2019-09-25 | 2020-07-07 | 宣化钢铁集团有限责任公司 | Pressurizer of ladle rotation hydraulic system of continuous casting machine |
Non-Patent Citations (1)
| Title |
|---|
| 陶安东主编: "《液压与气压传动》", 31 March 2014, 冶金工业出版社, pages: 148 - 149 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056334A (en) * | 2019-12-31 | 2020-04-24 | 龙合智能装备制造有限公司 | Self-adaptive loading platform for integral loading of container |
| CN111056334B (en) * | 2019-12-31 | 2021-10-22 | 龙合智能装备制造有限公司 | Self-adaptive loading platform for integral loading of container |
| CN112560350A (en) * | 2020-12-22 | 2021-03-26 | 柳州钢铁股份有限公司 | Sudden accident prevention expansion control method and system for multi-flow square billet casting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110594241A (en) | Pressurizer of ladle rotation hydraulic system of continuous casting machine | |
| CN210949371U (en) | Pressurizer of ladle rotation hydraulic system of continuous casting machine | |
| CN105485166B (en) | Oil supplementing system for dynamic and static pressure bearing of grinding machine | |
| CN108251640A (en) | A kind of Simple energy saving constant pressure medicament add-on system | |
| CN204435471U (en) | Novel water hammer protector | |
| CN204023707U (en) | Compensated with air device | |
| CN202078681U (en) | Gas pressing type emergency fire control water supply equipment | |
| CN208168939U (en) | A kind of small machine lubrication oil supply system | |
| CN202152475U (en) | Pressure stabilization and water supply device | |
| CN204677171U (en) | A kind of corrosion inhibiter receives and stores skid-mounted unit | |
| CN205999980U (en) | A kind of laminating water supply equipment | |
| CN202164657U (en) | Household water supply system of pressure boosting | |
| CN215594238U (en) | Automatic air and water supply device for bag type expansion water tank | |
| CN205225911U (en) | Oil pressure unit is used in two oil pump power stations | |
| CN111022227A (en) | Prevent fuel feeding system that evacuates | |
| CN216616059U (en) | Arrangement structure for preventing deterioration of water body in one-way pressure regulating tower | |
| CN206373165U (en) | A kind of high-speed rod thin oil lubricant pressure oil storage tank control device | |
| CN213114789U (en) | Municipal administration running water pipe network pressure boost system | |
| CN104963658B (en) | A kind of corrosion inhibiter is received and storage skid-mounted unit | |
| CN205225905U (en) | Power station oil pressure unit | |
| CN203096826U (en) | Air water mixed-phase pressure storage tank | |
| CN214147404U (en) | External storage pressure type heptafluoropropane fire extinguishing system medicament filling equipment | |
| CN221348045U (en) | On-spot adjustable micropressure bleeder | |
| CN212867868U (en) | Water pump device for constant-pressure water supply | |
| CN207760944U (en) | A kind of hydraulic control device based on landing expansion tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191220 |