CN205013402U - A multistage hydraulic regulator for fan -shaped section - Google Patents

Abstract

The utility model relates to the field of auxiliary equipment used for post-processing or post-processing casting billets on the spot for metal continuous casting, in particular to a multi-stage hydraulic pressure regulating device for sectors. A multi-stage hydraulic pressure regulating device for sectors, comprising a hydraulic source (10), characterized in that: it also includes at least two pressure regulating modules, each of the pressure regulating modules includes a ball valve (41), a proportional reducing Pressure valve (42) and pressure relay (43), and all constitute as follows: the output end of ball valve (41) connects the input end of proportional decompression valve (42) through oil pipe; The P end of hydraulic pressure source (10) The input ends of the ball valves (41) of the various pressure regulating modules are respectively connected through the oil pipes, and the first output ends of the proportional pressure reducing valves (42) of the various pressure regulating modules are respectively connected with the hydraulic output ends through the oil pipes. The utility model has the advantages of simple structure, convenient use, flexible setting, accurate adjustment and safe and reliable control.

Description

Multi-stage hydraulic pressure regulator for segments

technical field

The utility model relates to the field of auxiliary equipment used for post-processing or post-processing casting billets on the spot for metal continuous casting, in particular to a multi-stage hydraulic pressure regulating device for sectors.

Utility model content

In order to overcome the defects of the prior art and provide a continuous casting machine segment pressure regulating device with simple structure, convenient use, flexible setting, accurate adjustment and reduced investment, the utility model discloses a multi-stage hydraulic pressure regulator for the segment. Pressure regulating device.

The utility model achieves the purpose of the invention through the following technical solutions:

A multi-stage hydraulic pressure regulating device for a segment, including a hydraulic source, the hydraulic source outputs high-pressure hydraulic oil through the P terminal, and is characterized in that it also includes at least two pressure regulating modules, and each of the pressure regulating modules is The first pressure regulation module, the second pressure regulation module, ... and the nth pressure regulation module,

Each of the described pressure regulating modules includes a ball valve, a proportional pressure reducing valve and a pressure relay, and all of them are composed as follows: the output end of the ball valve is connected to the input end of the proportional pressure reducing valve through the oil pipe, and the pressure relay is connected to the proportional pressure reducing valve. The P end of the hydraulic source is connected to the input end of the ball valve of each pressure regulating module respectively through the oil pipe, and the first output end of the proportional pressure reducing valve of each pressure regulating module is respectively connected to each hydraulic output end through the oil pipe. Each of the above-mentioned hydraulic output ends is directly connected to the control hydraulic valve table of the sector; the second output end of the proportional pressure reducing valve of each of the above-mentioned pressure-regulating modules is connected to the common T end through the oil pipe; each of the above-mentioned pressure-regulating The third output end of the proportional pressure reducing valve of the module is connected to the common L end through the oil pipe, and both the common T end and the common L end are connected to the hydraulic source through the oil pipe.

The multi-stage hydraulic pressure regulating device for the segment is characterized in that it also includes an emergency power module, and the emergency power module includes a ball valve, a pressure relay, a one-way valve, a safety valve, an accumulator and a gas cylinder, And the structure is as follows: the output end of the ball valve is connected to the input end of the one-way valve through the oil pipe, the output end of the single-phase valve is respectively connected to the pressure relay, the input end of the safety valve and the emergency power oil source, the output end of the accumulator Connect the input end of the safety valve through the oil pipe, the input end of the accumulator is connected to the gas cylinder through the air pipe; the P end of the hydraulic source is connected to the input end of the emergency power module ball valve through the oil pipe, and the output end of the emergency module safety valve Connect the emergency power oil source through the oil pipe;

One of the pressure regulating modules in the various pressure regulating modules also includes a reversing valve, and the described pressure regulating module is composed as follows: the output end of the ball valve is connected to the input end of the proportional pressure reducing valve through the oil pipe, and the pressure switch Connect the proportional pressure reducing valve; the P end of the hydraulic source is connected to the input end of the ball valve of the pressure regulating module through the oil pipe, and the first output end of the proportional pressure reducing valve of the pressure regulating module is connected to the first output end of the reversing valve through the oil pipe. One input end, the output end of the reversing valve is connected to the hydraulic output end through the oil pipe, and the hydraulic output end is directly connected to a sector to control the pressure of the dummy rod of the hydraulic valve table, and the emergency power oil source is connected to the reversing valve through the oil pipe The second input end of the proportional pressure reducing valve of the pressure regulating module is connected to the common T terminal through the oil pipe; the third output end of the proportional pressure reducing valve of the pressure regulating module is connected to the Public L terminal.

The above-mentioned multi-stage hydraulic pressure regulating device for the segment is characterized in that: the reversing valve is a solenoid valve and powered by an uninterrupted power supply; the accumulator is a piston type, and a liquid level sensor is installed in the accumulator.

When the utility model is used, firstly, all sectors are grouped according to the required pressure according to the process conditions, and those with the same pressure are divided into one group, and each group is equipped with the utility model.

Multi-stage pressure regulation: the hydraulic source outputs high-pressure oil through the P terminal, and the high-pressure oil is divided into several branches and enters the ball valve and proportional pressure reducing valve of each pressure regulation module respectively. According to different pressure requirements, the remote given signal makes each pressure regulation The first output port of the proportional pressure reducing valve of the module outputs oil pressures of different pressures. The oil circuit output by one of the pressure regulating modules is the pressure of the fan-shaped segment, and the oil circuits output by the other pressure-regulating modules are directly connected to the fan-shaped section. Control the hydraulic valve table. The utility model can be equipped with an emergency module, which is used for the switching of the emergency power oil source, that is, the PE end and the pressure oil circuit of the fan section pressure dummy rod. Under normal circumstances, the oil circuit output by the pressure regulating module is connected to the hydraulic control valve of the sector section. When the UPS supplies power to the reversing valve in an accident state, it is forced to connect the oil circuit of the emergency power oil source to the sector hydraulic control valve table. The pressure relay can monitor the actual values of various oil pressures in real time and feed them back to the electric control The system compares with the input value to make the oil pressure value more accurate.

During emergency power output, the hydraulic source outputs high-pressure oil through the P terminal, and the high-pressure oil enters one chamber of the accumulator through the ball valve, one-way valve and safety valve of the emergency module, and the other chamber of the accumulator is filled with nitrogen through the cylinder. Due to the pressure of the high-pressure oil, the nitrogen is compressed, thereby storing energy, that is, the potential energy of the nitrogen. When an unexpected power failure occurs, the hydraulic source loses power. Due to the action of the check valve, the high-pressure oil in the accumulator will not flow back to the P end of the hydraulic source. Through the switching of the reversing valve, the oil in the emergency power oil source The road is connected to the hydraulic control valve table of the fan section, that is, the emergency power oil source is provided for the fan section through the PE port. There is a liquid level sensor inside the accumulator, which can monitor the oil volume in the accumulator, which can be used as the basis for judging the sustainable working time of the emergency power oil source.

The utility model can output a variety of pressures according to the needs, and can remotely adjust the pressure according to the process needs. The adjusted pressure has a feedback signal to form a closed-loop control to ensure the accuracy of the pressure; In the case of electricity, the emergency power oil source can be automatically switched to be used for pressing the dummy rod in the segment to prevent personal injury and death accidents.

The beneficial effects of the utility model are: simple structure, convenient use, flexible setting, accurate adjustment, reduced investment, safe and reliable control, and good quality of produced slabs.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the emergency module in the utility model.

detailed description

Below further illustrate the utility model by specific embodiment.

Example 1

A multi-stage hydraulic pressure regulating device for sectors, including a hydraulic source 10, three pressure regulating modules and an emergency power module 4, the three pressure regulating modules are respectively the first pressure regulating module 1, the second pressure regulating module Pressure module 2 and the third pressure regulating module 3, as shown in Figure 1 and Figure 2, the specific structure is:

The hydraulic source 10 outputs high-pressure hydraulic oil through the P terminal;

The three pressure regulating modules all include a ball valve 41, a proportional pressure reducing valve 42 and a pressure relay 43, and are formed as follows: the output end of the ball valve 41 is connected to the input end of the proportional pressure reducing valve 42 through an oil pipe, and the pressure The relay 43 is connected to the proportional pressure reducing valve 42; the P end of the hydraulic source 10 is respectively connected to the input ends of the ball valves 41 of the various pressure regulating modules through the oil pipe, and the first proportional pressure reducing valve 42 of the three pressure regulating modules is The output ends are respectively connected to each hydraulic output end through oil pipes, and the three hydraulic output ends are directly connected to the control hydraulic valve table of the sector, as shown by arrow a in Figure 1; the three pressure regulating modules described The second output end of the proportional pressure reducing valve 42 is connected to the common T end 51 through the oil pipe; the third output end of the proportional pressure reducing valve 42 of the three pressure regulating modules is connected to the common L end 52 through the oil pipe. Both the T end 51 and the common L end 52 are connected to the hydraulic source 10 through oil pipes.

Note: When the proportional pressure reducing valve 42 is working normally, a certain amount of oil will be discharged, and the discharged oil must be led back to the hydraulic source 10 through the common T-port 51. At the same time, a small amount of oil leakage will also occur, which must be passed through The common L port 52 leads the leaked oil back to the hydraulic source 10 .

As shown in Figure 2, the emergency power module 4 includes a ball valve 41, a pressure relay 43, a one-way valve 61, a safety valve 62, an accumulator 63 and a gas cylinder 64, and is constituted as follows: the output end of the ball valve 41 passes through the oil pipe Connect the input end of the one-way valve 61, the output end of the single-phase valve 61 is respectively connected to the pressure relay 43, the input end of the safety valve 4 and the emergency power oil source 53, and the output end of the accumulator 63 is connected to the input of the safety valve 4 through the oil pipe The input end of the accumulator 63 is connected to the gas cylinder 64 through the air pipe; the P end of the hydraulic source 10 is connected to the input end of the emergency power module ball valve 41 through the oil pipe, and the output end of the emergency module safety valve 4 is connected through the oil pipe Connect emergency power oil source 53;

The first pressure regulating module 1 in each of the described pressure regulating modules also includes a reversing valve 44, and the first pressure regulating module 1 is constituted as follows: the output end of the ball valve 41 is connected to the input of the proportional pressure reducing valve 42 through the oil pipe end, the pressure relay 43 is connected to the proportional pressure reducing valve 42; the P end of the hydraulic source 10 is connected to the input end of the ball valve 41 of the first pressure regulating module 1 through the oil pipe, and the first output of the proportional pressure reducing valve 42 of the first pressure regulating module 1 end is connected to the first input end of the reversing valve 44 through the oil pipe, and the output end of the reversing valve 44 is connected to the hydraulic output end through the oil pipe. , the emergency power oil source 53 is connected to the second input end of the reversing valve 44 through the oil pipe; the second output end of the proportional pressure reducing valve 42 of the first pressure regulating module 1 is connected to the common T end 51 through the oil pipe; the first pressure regulating module The third output end of the proportional pressure reducing valve 42 of 1 is connected to the common L end 52 through the oil pipe.

In this embodiment: the reversing valve 44 is a solenoid valve and powered by an uninterruptible power supply; the accumulator 63 is a piston type, and a liquid level sensor is installed in the accumulator 63 .

When this embodiment is used, firstly, all sectors are grouped according to the required pressure according to the process conditions, and those with the same pressure are divided into one group, and each group is equipped with one set of this embodiment.

During multi-stage pressure regulation: the hydraulic source 10 outputs high-pressure oil through the P terminal, and the high-pressure oil is divided into three branches and enters the ball valve 41 and the proportional pressure reducing valve 42 of the three pressure regulation modules respectively. According to different pressure requirements, the signal is given remotely Make the first output ports of the proportional pressure reducing valves 42 of each pressure regulating module output oil pressures of different pressures, wherein the oil circuit output by the first pressure regulating module 1 is set as P1 to be the sector pressure dummy bar pressure, and the second pressure regulating The oil circuits output by the module 2 and the third pressure regulating module 3 are respectively set to P2 and P3, which are directly connected to the control hydraulic valve table of the segment. This embodiment is equipped with an emergency module 4, which is used to switch the emergency power oil source 53, that is, the PE end and the pressure oil circuit of the fan section pressure dummy rod. Under normal circumstances, the oil circuit output by the first pressure regulating module 1 is connected to the fan section. The hydraulic control valve table, when the uninterrupted power supply is powered on in an accident state, the reversing valve 44 is energized, and the oil circuit of the emergency power oil source 53 is forced to connect to the hydraulic control valve table of the fan section, and the pressure relay 43 can monitor various oil pressures in real time The actual value is fed back to the electronic control system for comparison with the input value to make the oil pressure value more accurate.

During emergency power output, the hydraulic source 10 outputs high-pressure oil through the P terminal, and the high-pressure oil enters one cavity of the accumulator 63 through the ball valve 41, the check valve 61 and the safety valve 62 of the emergency module 4, and the other cavity of the accumulator 63 Nitrogen is charged through the cylinder 64, and the nitrogen is compressed due to the pressure of the high-pressure oil, thereby storing energy in the form of nitrogen potential energy. When an unexpected power failure occurs, the hydraulic source 10 loses power. Due to the action of the check valve 61, the high-pressure oil in the accumulator 63 will not flow back to the P end of the hydraulic source 10. By switching the reversing valve 44, the emergency The oil circuit of the power oil source 53 is connected to the hydraulic control valve table of the sector section, that is, the emergency power oil source 53 is provided for the sector section through the PE end, and the pressure relay 43 can monitor the oil pressure in the accumulator 63 in real time as an emergency power oil source Whether the 53 works normally is based on the fact that the accumulator 63 is provided with a liquid level sensor, which can monitor the oil quantity in the accumulator 63 as the basis for judging the continuous working time of the emergency power oil source 53.

This embodiment can output a variety of pressures according to the needs, and can remotely adjust the pressure according to the process needs. The adjusted pressure has a feedback signal to form a closed-loop control to ensure the accuracy of the pressure; the utility model is equipped with an emergency power oil source. In the case of electricity, the emergency power oil source can be automatically switched to be used for pressing the dummy rod in the segment to prevent personal injury and death accidents.

Claims (3)

1. the multistage hydraulic regulator for fan-shaped section, comprise hydraulic power (10), hydraulic power (10) exports high pressure liquid force feed by P end, it is characterized in that: also comprise at least two voltage regulating modules, each described voltage regulating module be respectively the first voltage regulating module, the second voltage regulating module ... with the n-th voltage regulating module

Each described voltage regulating module all comprises ball valve (41), proportional pressure-reducing valve (42) and pressure relay (43), and formation all as described below: the output terminal of ball valve (41) connects the input end of proportional pressure-reducing valve (42) by oil pipe, pressure relay (43) connects proportional pressure-reducing valve (42); The P end of hydraulic power (10) connects the input end of the ball valve (41) of each described voltage regulating module respectively by oil pipe, first output terminal of the proportional pressure-reducing valve (42) of each described voltage regulating module connects each hydraulic pressure output terminal respectively by oil pipe, and each described hydraulic pressure output terminal all directly accesses the hydraulic control valve platform of fan-shaped section; Second output terminal of the proportional pressure-reducing valve (42) of each described voltage regulating module is all connected to public T by oil pipe and holds (51); 3rd output terminal of the proportional pressure-reducing valve (42) of each described voltage regulating module is all connected to public L by oil pipe and holds (52), and public T end (51) and public L hold (52) to pass through oil pipe connecting fluid potential source (10).

2. as claimed in claim 1 for the multistage hydraulic regulator of fan-shaped section, it is characterized in that: also comprise emergency power module, described emergency power module comprises ball valve (41), pressure relay (43), one-way valve (61), safety valve (62), accumulator (63) and gas cylinder (64), and formation as described below: the output terminal of ball valve (41) connects the input end of one-way valve (61) by oil pipe, output terminal Bonding pressure relay (43) respectively of single-phase valve (61), the input end of safety valve (4) and emergency power oil sources (53), the output terminal of accumulator (63) passes through the input end of oil pipe connection safety valve (4), the input end of accumulator (63) connects gas cylinder (64) by tracheae, the input end of the emergency power module ball valve (41) described in the P end of hydraulic power (10) is connected by oil pipe, the output terminal of described urgent module safety valve (4) connects emergency power oil sources (53) by oil pipe,

A voltage regulating module in each described voltage regulating module also comprises selector valve (44), and described voltage regulating module formation as described below: the output terminal of ball valve (41) connects the input end of proportional pressure-reducing valve (42) by oil pipe, pressure relay (43) connects proportional pressure-reducing valve (42); The input end of the ball valve (41) of the voltage regulating module described in the P end of hydraulic power (10) is connected by oil pipe, first output terminal of the proportional pressure-reducing valve (42) of described voltage regulating module connects the first input end of selector valve (44) by oil pipe, the output terminal of selector valve (44) connects hydraulic pressure output terminal by oil pipe, described hydraulic pressure output terminal directly accesses the pressure dummy bar pressure of a fan-shaped section hydraulic control valve platform, and emergency power oil sources (53) connects the second input end of selector valve (44) by oil pipe; Second output terminal of the proportional pressure-reducing valve (42) of described voltage regulating module is connected to public T by oil pipe and holds (51); 3rd output terminal of the proportional pressure-reducing valve (42) of described voltage regulating module is connected to public L by oil pipe and holds (52).

3., as claimed in claim 1 or 2 for the multistage hydraulic regulator of fan-shaped section, it is characterized in that: selector valve (44) is selected solenoid valve and powered by uninterruptable power source; Piston type selected by accumulator (63), and accumulator is provided with liquid level sensor in (63).