CN206754017U - A kind of energy-saving hydraulic pumping plant for TRT fast cut valves - Google Patents
A kind of energy-saving hydraulic pumping plant for TRT fast cut valves Download PDFInfo
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- CN206754017U CN206754017U CN201720600481.9U CN201720600481U CN206754017U CN 206754017 U CN206754017 U CN 206754017U CN 201720600481 U CN201720600481 U CN 201720600481U CN 206754017 U CN206754017 U CN 206754017U
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- accumulator
- pressure
- fast cut
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Abstract
It the utility model is related to a kind of energy-saving hydraulic pumping plant for TRT fast cut valves, it is characterised in that：Including fuel tank, hydraulic pump I, hydraulic pump II, motor I, motor II, overflow valve, check valve, accumulator, pressure transmitter, controller, pressure oil port and oil return opening, the hydraulic pump I and hydraulic pump II are driven by motor I and motor II respectively, two hydraulic pumps connect with fuel tank, the overflow valve is connected with fuel tank and two hydraulic pumps, the accumulator connects with two hydraulic pumps, the operating pressure of hydraulic power unit is set up by overflow valve, the pressure signal that controller is passed back according to pressure transmitter judges accumulator topping up situation, the start and stop of controlled motor I and motor II.The utility model designs according to the work characteristics of fast cut valve, disclosure satisfy that the slow of fast cut valve is opened, slow to close, and quick closing valve, moves about, dangerous quick closing valve etc. respectively acts the requirement to hydraulic power unit, and can substantially reduce the energy consumption of hydraulic station.
Description
Technical field
The utility model belongs to field of steel metallurgy, is related to a kind of energy-saving hydraulic pumping plant for TRT fast cut valves.
Background technology
Fast cut valve is the safety device of TRT system cores, and it is that fast cut valve can be when TRT systems occur abnormal that it, which is acted on,
The task that blast furnace roof top pressure is adjusted into the coal gas of turbine, is quickly given to pressure-reducing valve by (0.5s) cut-out in the shorter time
Group, prevent turbine from runaway condition occur.
Hydraulic power unit mainly has two kinds used in the control of fast cut valve at present.A kind of is the stator blade regulating system with TRT
Hydraulic power unit is shared, the problem of this mode is present is：The operating pressure of fast cut valve system is less than the work of TRT stator blade regulating systems
Make pressure, it is necessary to increase pressure-reducing valve on the control oil circuit of fast cut valve.Due to the working characteristics of pressure-reducing valve, hinder for some reason in hydraulic station
After shutdown, pressure-reducing valve will work on, and consume the pressure oil of hydraulic station accumulator, unfavorable to TRT stator blade regulating system.And
Due to the electro-hydraulic straight fast development for driving technology and its energy-conservation, the huge advantage that precision is high, response is fast that have, the regulation of TRT stator blades
Control have the trend substituted by electro-hydraulic straight drive technology, the hydraulic station of TRT stator blade regulating systems also can be gradually cancelled, and be TRT
Hydraulic station, which is separately configured, in fast cut valve can become increasingly to be necessary.Another be individually for fast cut valve system be separately configured it is normal
Hydraulic power unit is advised, pumping plant is by the way of variable pump adds accumulator, and when fast cut valve works, hydraulic station main pump keeps operating.It is this
Although hydraulic power unit can also ensure the normal work of TRT fast cut valves, the work characteristics of fast cut valve is have ignored, is caused a large amount of
Waste of energy.
Surged the energy-saving hydraulic pumping plant of fast cut valve for TRT the utility model proposes a kind of, according to the work of fast cut valve
Make feature design, disclosure satisfy that the slow of fast cut valve is opened, it is slow to close, quick closing valve, move about, dangerous quick closing valve etc. respectively to hydraulic power unit want by action
Ask, and the energy consumption of hydraulic station can be substantially reduced.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of energy-saving hydraulic pumping plant for TRT fast cut valves, solution
Certainly be individually for TRT fast cut valves configuration hydraulic power unit energy consumption it is big the problem of.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of energy-saving hydraulic pumping plant for TRT fast cut valves, including fuel tank, hydraulic pump I, hydraulic pump II, motor I, electricity
Machine II, overflow valve, check valve, accumulator, pressure transmitter, controller, pressure oil port and oil return opening, the hydraulic pump I and liquid
Press pump II is driven by motor I and motor II respectively, and two hydraulic pumps connect with fuel tank, and accumulator, two liquid are connected after in parallel
Press pump discontinuous operation is accumulator pressurizing, provides system demand pressure oil by accumulator, controller is passed back according to pressure transmitter
Pressure signal judge accumulator topping up situation, the start and stop of controlled motor I and motor II.Further, hydraulic pump I and hydraulic pump II
Inlet port at be equipped with oil absorption filter.
Further, in addition to the filter that is arranged between pressure oil port and hydraulic pump, the pressure oil port of hydraulic power unit are led to
Ball valve is crossed to connect with oil return opening.
Further, the accumulator is two be arranged in parallel.
Further, in addition to respectively two accumulator control valve groups being connected with two accumulators.
Further, the accumulator is bag type accumulator.
The beneficial effects of the utility model are：
1st, the control of fast cut valve uses single hydraulic power unit, other systems will not be had an impact, security is good.
2nd, hydraulic pump discontinuous operation system, just start only when energy storage pressure is dropped to below setting value and filled for accumulator
Liquid, pressure oil needed for the operation of fast cut valve are provided by accumulator, substantially reduce energy consumption.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, the utility model provides as follows
Accompanying drawing illustrates：
Fig. 1 is the schematic diagram of control loop of the present utility model.
Wherein 1 fuel tank, 2 liquid level gauges, 3 be air cleaner, and 4 be temperature transmitter, and 5 be oil absorption filter, and 61 be hydraulic pressure
Pump I, 62 be hydraulic pump II, and 71 be motor I, and 72 be motor II, and 8 be check valve, and 9 be filter, and 10 be overflow valve, and 11 be unidirectional
Valve, 12 be pressure gauge, and 13 be ball valve, and 14 be accumulator control valve group, and 15 be accumulator, and 16 be pressure transmitter, and 17 be control
Device.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
A kind of energy-saving hydraulic pumping plant for TRT fast cut valves as shown in Figure 1, including fuel tank 1, hydraulic pump I 61, hydraulic pump
II 62, motor I 71, motor II 72, overflow valve 10,8 and 11 be check valve, accumulator 15, pressure transmitter 16, controller 17,
Pressure oil port P and oil return inlet T 1, T2, T3,12 be pressure gauge, and 2 be liquid level gauge, and 3 be air cleaner, and 4 be temperature transmitter, 8
It is check valve with 11, pressure oil oil return can be prevented, two hydraulic pumps is driven by two motors respectively, two hydraulic pumps and oil
Case connects, and the overflow valve 10 is connected with fuel tank 1 and two hydraulic pumps, and the accumulator 15 connects with two hydraulic pumps, hydraulic pressure
The operating pressure of pumping plant is set up by overflow valve 10, and the pressure signal that controller 17 is passed back according to pressure transmitter 16 judges accumulation of energy
The topping up situation of device 15, control the start and stop of two motors.Oil absorption filter 5 is equipped with the inlet port of two hydraulic pumps, in pressure
Filter 9 is provided between hydraulic fluid port and hydraulic pump, the pressure oil port provided with hydraulic power unit is connected by ball valve with oil return opening.
The pressure oil port P of pumping plant is connected by ball valve 13 with total oil return opening of pumping plant, before pumping plant normal operation or is added
After entering fresh oil, ball valve 1 can be opened, starts 2 hydraulic pumps, the hydraulic oil in fuel tank is filtered.Occur when fast cut valve works
It is abnormal, when hydraulic system needs pressure release, ball valve 13 can be opened, pressure oil takes back fuel tank, system decompression.Each accumulator configures
Accumulator control valve group 14 is in order to the maintenance and maintenance of accumulator, and when overhauling one of them, another accumulator can
Normal work, the operation of fast cut valve is not influenceed.The accumulator of the present embodiment is bag type accumulator.
Specifically working method is：Hydraulic pump 61 starts first, is the topping up of accumulator 15, controller 17 is according to pressure inverting
The pressure signal that device 16 is passed back judges accumulator topping up situation, starts hydraulic pump II 62 if pressure rise is too slow.When pressure becomes
After sending device to detect the high-voltage value that pressure value reaches setting, controller 17 controls two main pumps to be stopped.Worked in fast cut valve
During, bag type accumulator provides required pressure oil, in addition to needing to consume larger oil mass when opening fast cut valve, is keeping
Fast cut valve is normally opened and the travelling operation of fast cut valve is intended to smaller oil mass, and in the case of the setting value of controller 17 is rational, main pump is not
Meeting frequent start-stop, caloric value very little.
For example, pump station pressure is set to 5MPa by overflow valve, the setup pressure value of controller 17 starts 1 less than 3.2MPa
Hydraulic pump motor, if delay 2S pressure is also less than 3.2MPa, start other 1 hydraulic pump motor；If pressure is higher than
5MPa, stop all hydraulic pump motor.
Before fast cut valve operation, it is the topping up of accumulator 15 to start hydraulic pump first, after the completion of, you can carry out the items of fast cut valve
Operation, pumping plant automatic running, controller carry out start and stop hydraulic pressure according to the pressure signal beamed back by pressure transmitter 16 received
The operation of pump.Due to being let out in oil cylinder or operation of moving about causes energy storage pressure to be less than during fast cut valve maintains a normally open
During 3.2MPa, the control of controller 17 starts 1 hydraulic pump and carries out topping up, and when energy storage pressure reaches 5MPa, controller 17 stops
Only hydraulic pump.
Finally illustrate, preferred embodiment above is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
The utility model has been described in detail by above preferred embodiment for pipe, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The scope of restriction.
Claims (6)
- A kind of 1. energy-saving hydraulic pumping plant for TRT fast cut valves, it is characterised in that：Including fuel tank, hydraulic pump I, hydraulic pump II, Motor I, motor II, overflow valve, check valve, accumulator, pressure transmitter, controller, pressure oil port and oil return opening, the hydraulic pressure Pump I and hydraulic pump II are driven by motor I and motor II respectively, and two hydraulic pumps connect with fuel tank, and accumulator is connected after in parallel, Two hydraulic pump discontinuous operations are accumulator pressurizing, provide system demand pressure oil by accumulator, controller is according to pressure inverting The pressure signal that device is passed back judges accumulator topping up situation, the start and stop of controlled motor I and motor II.
- A kind of 2. energy-saving hydraulic pumping plant for TRT fast cut valves according to claim 1, it is characterised in that：Hydraulic pump I Oil absorption filter is equipped with the inlet port of hydraulic pump II.
- A kind of 3. energy-saving hydraulic pumping plant for TRT fast cut valves according to claim 1, it is characterised in that：Also include The filter being arranged between pressure oil port and hydraulic pump, the pressure oil port of hydraulic power unit are connected by ball valve with oil return opening.
- A kind of 4. energy-saving hydraulic pumping plant for TRT fast cut valves according to claim 1, it is characterised in that：The storage Energy device is two be arranged in parallel.
- A kind of 5. energy-saving hydraulic pumping plant for TRT fast cut valves according to claim 4, it is characterised in that：Also include Two accumulator control valve groups being connected respectively with two accumulators.
- A kind of 6. energy-saving hydraulic pumping plant for TRT fast cut valves according to claim 1, it is characterised in that：The storage Energy device is bag type accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600481.9U CN206754017U (en) | 2017-05-26 | 2017-05-26 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600481.9U CN206754017U (en) | 2017-05-26 | 2017-05-26 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754017U true CN206754017U (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720600481.9U Active CN206754017U (en) | 2017-05-26 | 2017-05-26 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420356A (en) * | 2017-05-26 | 2017-12-01 | 中冶赛迪装备有限公司 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
-
2017
- 2017-05-26 CN CN201720600481.9U patent/CN206754017U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420356A (en) * | 2017-05-26 | 2017-12-01 | 中冶赛迪装备有限公司 | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves |
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