A mechanical hydraulic power energy storage emergency processor

Abstract

The present invention discloses a mechanical hydraulic power energy storage emergency processor, which belongs to the technical field of emergency treatment of hydraulic mechanical systems. It adopts a mechanical hydraulic power energy storage emergency processor, including a hydraulic system energy storage circuit, a hydraulic system directional valve operation circuit, and a hydraulic system circuit when there is no power due to mechanical and power supply failures. When there is no power due to mechanical and power supply failures, the device can safely and reliably uncover the ladle car thermal insulation cover through its own hydraulic system energy storage device.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency treatment of hydraulic mechanical systems. Specifically, it is a mechanical hydraulic power energy storage emergency processor. Background Art

[0002] Currently, most hot metal ladles in steel plants use thermal insulation covers during the transfer process of hot metal. The purpose is to keep the hot metal temperature from dropping by 20°C to 50°C, avoid energy waste, and clean the production environment at the same time. However, once a power outage or a malfunction occurs during the production process, the thermal insulation cover cannot be opened, and the hot metal in the entire ladle cannot be poured out, resulting in great economic losses. In addition, when the blast furnace door cannot be opened due to a power outage, and when the large gravity door cannot be opened due to a power outage, significant losses will also occur. Developing a solution to open the thermal insulation cover of the hot metal ladle, open the blast furnace door, and open the large gravity door in the event of a power outage is an urgent problem to be solved.

[0003] After novelty search and retrieval, the patent CN 208138226 U discloses a hydraulic system and a lift. The hydraulic system includes an oil tank, an electric operating system, a manual operating system, and a valve plate. The valve plate is arranged above the oil tank. One end of the electric operating system is connected to the oil tank, and the other end passes through the valve plate and is connected to the working cylinder. One end of the manual operating system is connected to the oil tank, and the other end passes through the valve plate and is connected to the working cylinder. The manual operating system includes a manual pump and a first hydraulic system supply pipe. One end of the first hydraulic system supply pipe is connected to the oil tank, and the other end is connected to the working cylinder. The manual pump is connected to the first hydraulic system supply pipe so that hydraulic oil flows from the oil tank into the working cylinder under the action of the manual pump. This solves the technical problem that in the prior art, the hydraulic system cannot be used normally in the event of a power outage. The manual operating system of the present invention can continue to operate the hydraulic system in the event of a power outage.

[0004] The patent CN 213540871 U discloses a hydraulic system for a milling and grinding vehicle. The technical solution adopted is: during the operation of the milling and grinding vehicle, energy is stored in the accumulator, and hydraulic energy is converted into

[0005] gas compression energy and stored. When the system needs it, the compressed energy is converted into hydraulic energy and released. With the above settings, the hydraulic system has an emergency function. When the entire vehicle loses power, the milling and grinding device can be lifted away from the rail surface through the accumulator.

[0006] CN 216642598 U patent discloses an emergency hydraulic system and operating machinery. The emergency hydraulic system includes: an emergency hydraulic pump and an electromagnetic reversing valve. The inlet of the electromagnetic reversing valve is connected to the outlet of the emergency hydraulic pump through the emergency oil supply main pipe. The outlet of the electromagnetic reversing valve is connected to the upper hydraulic system and the lower hydraulic system through the upper oil supply pipe and the lower oil supply pipe respectively, so as to provide emergency power hydraulic oil for the upper hydraulic system or the lower hydraulic system. A manual override operating handle is provided on the electromagnetic reversing valve. The manual override operating handle can switch the working position of the electromagnetic reversing valve. When emergency operation is required, the working position of the electromagnetic reversing valve can be switched by electric control so that the upper hydraulic system or the lower hydraulic system can achieve corresponding emergency actions. The working position of the electromagnetic reversing valve can also be switched by the manual override operating handle to achieve corresponding emergency actions. As a result, the reliability and flexibility of the emergency hydraulic system can be greatly improved. Summary of the invention

[0007] In order to solve the above technical problems, the purpose of the present invention is to provide a mechanical hydraulic power energy storage emergency processor. When the mechanical hydraulic power system is out of power or fails and has no power, the insulation cover of the molten iron tank car, or the blast furnace door and gravity door can be safely and reliably opened through its own hydraulic system energy storage device.

[0008] The present invention is implemented by adopting such a method: a mechanical hydraulic power storage emergency processor is installed on the molten iron tank car, and the mechanical hydraulic power storage emergency processor comprises a hydraulic system storage circuit and a hydraulic system power-off circuit when there is no power due to mechanical and power failure.

[0009] The hydraulic system energy storage circuit described is as follows: the motor and the hydraulic pump are started, the motor drives the hydraulic pump to work through the coupling, the hydraulic oil passes through the filter, the reversing valve is energized, the hydraulic oil is pressure-regulated by the overflow valve, and after reaching a certain pressure, the hydraulic oil is injected into the accumulator nitrogen cylinder through the one-way valve, the accumulator nitrogen cylinder is equipped with a piston, the hydraulic oil compresses the nitrogen to store energy through the piston, and when the pressure of the accumulator nitrogen cylinder reaches a certain pressure, the one-way valve is automatically closed, and the accumulator nitrogen cylinder stores energy.

[0010] The reversing circuit of the reversing valve B of the hydraulic system: the reversing valve B is energized, the hydraulic oil is pressure-regulated by the relief valve, and after reaching a certain pressure, the hydraulic oil is injected into the accumulator nitrogen cylinder through the one-way valve. When the pressure of the accumulator nitrogen cylinder reaches a certain pressure, the one-way valve is automatically closed, and the hydraulic oil is injected into the oil cylinder B in four ways through the first synchronous diverter. The oil cylinder B starts to work, the B cavity rises, and the insulation cover is slowly raised to the top, the actuator is opened (the insulation cover is uncovered), and the limit switch works to close the oil circuit.

[0011] The reversing circuit of the reversing valve A of the hydraulic system: the reversing valve A is energized, the hydraulic oil is regulated by the overflow valve, and after reaching a certain pressure, the hydraulic oil is injected into the descending cylinder A cavity in four ways through the second synchronizer diverter. The cylinder A cavity is forced to descend, and the insulation cover is slowly closed to the lowest point, the actuator is closed (the insulation cover is closed), and the limit switch closes the reversing valve. Stop running.

[0012] The hydraulic system circuit in the case of mechanical and power failure without power:

[0013] Open the first manual ball valve manually, and the nitrogen in the nitrogen cylinder of the accumulator is injected into the four cylinder chambers through the first synchronous diverter. Under the action of nitrogen, the four cylinders B push the four cylinder B chambers to descend and work. At the same time, open the second manual ball valve manually and slowly, and the hydraulic oil in the four cylinder A chambers passes through the second synchronous diverter and the second manual ball valve to unload the hydraulic oil in the four cylinder A chambers, and the hydraulic oil returns to the oil tank, and the actuator is opened (the insulation cover is opened).

[0014] Furthermore, the pressure of the nitrogen cylinder of the accumulator is 6-10mPa.

[0015] Furthermore, nitrogen is injected into the nitrogen cylinder of the energy storage tank before operation.

[0016] Furthermore, in the reversing valve, when reversing valve A is energized, oil flows out of oil circuit A, and when reversing valve B is energized, oil flows out of oil circuit B, thus completing a working cycle.

[0017] Furthermore, when the required pressure is greater than the set pressure, the overflow valve automatically opens, and the hydraulic oil with pressure higher than the pressure is unloaded, and the set pressure remains unchanged.

[0018] Furthermore, the four oil cylinders are connected to the actuator.

[0019] The beneficial effects of the present invention are as follows: 1. The structure of the device is simple and the design is reasonable. 2. In the case of power failure or failure, the insulation cover of the molten iron tank car can be safely and reliably opened through the mechanical power storage device itself. 3. The accumulator nitrogen cylinder of the device can push 30-50 tons of gravity at 6-10mPa. 4. The device is also suitable for gravity doors or other mobile opening devices in emergency situations.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Appended Figure 1 The following is a block diagram of the hydraulic energy storage system of the present invention.

[0022] Explanation of the block diagram symbols: 1. Motor; 2. Hydraulic pump; 3. Coupling; 4. Filter; 5. Directional valve; 6. Relief valve; 7. Nitrogen cylinder of accumulator; 8. Check valve; 9. First manual ball valve; 10. Second manual ball valve; 11. First synchronous flow divider; 12. Second synchronous flow divider; 13. First oil cylinder; 14. Second oil cylinder; 15. Third oil cylinder; 16. Fourth oil cylinder; 17. Oil tank. Specific implementation manners

[0023] Next, in combination with the appended Figure 1 in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] See the appended Figure 1 as shown: A mechanical hydraulic power energy storage emergency processor is installed on the hot metal ladle car. The mechanical hydraulic power energy storage emergency processor includes a hydraulic system energy storage circuit, a hydraulic system working circuit, a hydraulic system directional valve circuit, and a hydraulic system circuit in the case of mechanical and power supply failures without power.

[0025] Hydraulic system energy storage circuit: The motor 1 and the hydraulic pump 2 are started. The motor 1 drives the hydraulic pump 2 to work through the coupling 3. The hydraulic oil passes through the filter 4, and the directional valve 5A is energized. The hydraulic oil is regulated by the relief valve 6. After reaching a certain pressure, the hydraulic oil is injected into the nitrogen cylinder 7 of the accumulator through the check valve 8. There is a piston in the nitrogen cylinder 7 of the accumulator. The hydraulic oil compresses the nitrogen through the piston for energy storage. When the pressure in the nitrogen cylinder 7 of the accumulator reaches a certain pressure, the check valve 8 automatically closes, and the nitrogen cylinder 7 of the accumulator stores energy.

[0026] Hydraulic system directional valve B commutation circuit: The directional valve B is energized. The hydraulic oil is regulated by the relief valve 6. After reaching a certain pressure, the hydraulic oil is injected into the nitrogen cylinder 7 of the accumulator through the check valve 8. When the pressure in the nitrogen cylinder 7 of the accumulator reaches a certain pressure, the check valve 8 automatically closes. The hydraulic oil is divided into four paths through the first synchronous flow divider 12 and injected into the B chambers of the oil cylinders, namely the B chambers of the first oil cylinder 13, the second oil cylinder 14, the third oil cylinder 15, and the fourth oil cylinder 16. The B chambers of the first oil cylinder 13, the second oil cylinder 14, the third oil cylinder 15, and the fourth oil cylinder 16 rise, the actuator is opened, the heat preservation cover is slowly lifted to the top, the heat preservation cover is uncovered, and the limit switch works to close the oil circuit.

[0027] Hydraulic system directional valve A commutation circuit: When the directional valve 5A is energized, the hydraulic oil is regulated by the overflow valve 6. After reaching a certain pressure, the hydraulic oil is divided into four paths through the second synchronizer diverter 11 and injected into the A chamber of the oil cylinder, forcing the A chambers of the first oil cylinder 13, the second oil cylinder 14, the third oil cylinder 15, and the fourth oil cylinder 16 to descend. The actuator is closed, and at the same time, the actuator is slowly closed to the lowest point, the heat preservation cover is closed, and the limit switch closes the directional valve 5. Stop running.

[0028] The hydraulic system circuit in the case where the described machinery and power supply fail and there is no power:

[0029] Open the first manual ball valve 9. The nitrogen in the nitrogen cylinder 7 of the accumulator passes through the first synchronous diverter 12 and is respectively injected into the B chambers of the four oil cylinders, namely the B chamber of the first oil cylinder 13, the B chamber of the second oil cylinder 14, the B chamber of the third oil cylinder 15, and the B chamber of the fourth oil cylinder 16. Under the action of nitrogen, the B chambers of the four oil cylinders are pushed to descend and work. At the same time, slowly open the second manual ball valve 10 manually. The hydraulic oil in the A chambers of the four oil cylinders passes through the second synchronous diverter 11 and the second manual ball valve 10, so that the hydraulic oil in the A chambers of the four oil cylinders is unloaded, and the hydraulic oil returns to the oil tank 17. The actuator is opened, and the heat preservation cover is opened (uncovered).

[0030] For the described directional valve 5, when the directional valve 5A is energized, the oil in the A oil circuit flows out. When the directional valve 5B is energized, the oil in the B oil circuit flows out. A working cycle is completed.

[0031] Open the first manual ball valve 9. Nitrogen is injected into the B chambers of the four oil cylinders by the synchronous first synchronous diverter. At the same time, open the second manual ball valve 10 to unload the hydraulic oil in the A chambers of the four oil cylinders, completing the work of the hydraulic system execution components during power failure.

[0032] The pressure of the nitrogen cylinder 7 of the accumulator is 6 - 10 mPa.

[0033] Nitrogen is injected into the nitrogen cylinder 7 of the accumulator before work.

[0034] The actuator is connected to the B chambers of the four oil cylinders.

[0035] Nitrogen is usually called an inert gas. Nitrogen is an almost inert diatomic gas with extremely inactive chemical properties. The gas molecules are larger than oxygen molecules, not easy to expand and contract due to heat, and the deformation amplitude is small.

[0036] For the described overflow valve 6, when setting the required pressure, if the pressure is greater than the set pressure, the overflow valve 6 automatically opens, and the pressure oil higher than the pressure is unloaded, and the set pressure remains unchanged.

[0037] The four oil cylinders are connected to the actuator through pistons.

[0038] The actuator is respectively connected to the heat preservation cover, the blast furnace door, and the gravity door.

[0039] The described heat preservation cover is the heat preservation cover for a molten iron ladle car. The heat preservation cover is in the form of a split cover that can be opened.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical hydraulic power energy storage emergency processor, which consists of an energy storage device adopted by a hydraulic system, and is characterized in that: The mechanical hydraulic power energy storage emergency processor consists of a hydraulic system energy storage circuit, a hydraulic system reversing valve circuit, and a hydraulic system circuit in the case of mechanical and power supply failures without power. The hydraulic system energy storage circuit: When the motor (1) and the hydraulic pump (2) start, the motor (1) drives the hydraulic pump (2) to work through the coupling (3). The hydraulic oil passes through the filter (4), and the reversing valve A is energized. The hydraulic oil is regulated by the overflow valve (6). After reaching a certain pressure, the hydraulic oil is injected into the accumulator nitrogen cylinder (7) through the one-way valve (8). The nitrogen in the accumulator nitrogen cylinder (7) compresses the nitrogen through the piston. When the pressure in the accumulator nitrogen cylinder (7) reaches a certain pressure, the one-way valve (8) automatically closes, and the accumulator nitrogen cylinder (7) stores energy. The hydraulic system reversing valve B reversing circuit: When the reversing valve B is energized, the hydraulic oil is regulated by the overflow valve (6). After reaching a certain pressure, the hydraulic oil is injected into the accumulator nitrogen cylinder (7) through the one-way valve (8). When the pressure in the accumulator nitrogen cylinder (7) reaches a certain pressure, the one-way valve (8) automatically closes. The hydraulic oil is divided into four paths through the first synchronous shunt (12) and injected into the B chambers of the oil cylinders, namely the B chambers of the first oil cylinder (13), the second oil cylinder (14), the third oil cylinder (15), and the fourth oil cylinder (16). The B chambers of the first oil cylinder (13), the second oil cylinder (14), the third oil cylinder (15), and the fourth oil cylinder (16) descend, the actuator is opened, and the thermal insulation cover is slowly lowered to the low point, and the limit switch works to close the oil circuit. The hydraulic system reversing valve A reversing circuit: When the reversing valve A is energized, the hydraulic oil is regulated by the overflow valve (6). After reaching a certain pressure, the hydraulic oil is divided into four paths through the second synchronous shunt (11) and injected into the A chambers of the oil cylinders, namely the A chambers of the first oil cylinder (13), the second oil cylinder (14), the third oil cylinder (15), and the fourth oil cylinder (16). This forces the A chambers of the first oil cylinder (13), the second oil cylinder (14), the third oil cylinder (15), and the fourth oil cylinder (16) to rise. The A chambers of the oil cylinders rise, the actuator is closed, the thermal insulation cover is closed, and the limit switch closes the reversing valve A to stop running. The hydraulic system circuit in the case of mechanical and power supply failures without power: Open the first manual ball valve (9) to open the accumulator nitrogen cylinder (7) circuit. The nitrogen gas pushes the B chambers of the four oil cylinders, namely the B chambers of the first oil cylinder (13), the second oil cylinder (14), the third oil cylinder (15), and the fourth oil cylinder (16) through the first synchronous shunt (12). At the same time, slowly open the second manual ball valve (10) manually to unload the A chambers of the four oil cylinders, namely the A chambers of the first oil cylinder (13), the second oil cylinder (14), the third oil cylinder (15), and the fourth oil cylinder (16). The hydraulic oil is unloaded, and the hydraulic oil returns to the fuel tank (17). The actuator is opened, and the thermal insulation cover is uncovered.

2. The mechanical hydraulic power energy storage emergency processor according to claim 1, wherein: For the reversing valve, when the reversing valve A is energized, the A oil circuit outputs oil, and when the reversing valve B is energized, the B oil circuit outputs oil, completing one working cycle.

3. A mechanical hydraulic power energy storage emergency processor according to claim 1, characterized in that: The pressure of the accumulator nitrogen cylinder (7) is 6 - 10 mPa.

4. A mechanical hydraulic power energy storage emergency processor according to claim 1, characterized in that: Nitrogen is injected into the accumulator nitrogen cylinder (7) before operation.

5. A mechanical hydraulic power energy storage emergency processor according to claim 1, characterized in that: For the relief valve (6), when the required pressure is set and the pressure is greater than the set pressure, the relief valve (6) automatically opens, and the hydraulic oil with a pressure higher than the set pressure is unloaded while the set pressure remains unchanged.

6. The mechanical hydraulic power energy storage emergency processor according to claim 1, characterized in that: The B chambers of the four oil cylinders are connected to the actuator.

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