CN204610393U - A kind of hydraulic emergency feed circuit - Google Patents
A kind of hydraulic emergency feed circuit Download PDFInfo
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- CN204610393U CN204610393U CN201520288921.2U CN201520288921U CN204610393U CN 204610393 U CN204610393 U CN 204610393U CN 201520288921 U CN201520288921 U CN 201520288921U CN 204610393 U CN204610393 U CN 204610393U
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- check valve
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Abstract
The utility model relates to a kind of hydraulic emergency feed circuit automatically opened and closed for the power source in particular cases such as system cut-off.The hydraulic oil circuit comprising Accumulator arrangements and be connected with described Accumulator arrangements, described hydraulic oil circuit comprises overflow portion and repairing control section, the entrance of described repairing control section is connected with hydraulic power pipeline, hydraulic power pipeline is also connected with to the equipment pipeline of equipment fuel feeding, the outlet of repairing control section is connected with the entrance of described Accumulator arrangements, overflow portion.This hydraulic emergency feed circuit can control the fuel feeding of the oil circuit control of Pilot operated check valve and the Solenoid ball valve of oil-break by using Pilot operated check valve and arranging on the hydraulic control oil circuit of Pilot operated check valve, when equipment normally works, Solenoid ball valve makes oil circuit control oil-break, when power is off, Solenoid ball valve makes oil circuit control get through, be equipment pipeline fuel feeding by Accumulator arrangements, there is the advantages such as response is rapid, easy to use, safe and reliable, energy-conserving and environment-protective.
Description
Technical field
The utility model relates to a kind of hydraulic emergency feed circuit automatically opened and closed for the power source in particular cases such as system cut-off.
Background technique
Hydraulic emergency feed circuit is mainly used in the power source in particular cases such as hydraulic station system cut-off or pumping plant fault and opens and closes, and is made up of Accumulator arrangements and respective valves and pipeline.
At present, tap a blast furnace in hydraulic system before State of Blast Furnace, generally use manually opened hydraulic emergency feed circuit, manually opened hydraulic emergency feed circuit is made up of Accumulator arrangements, manually opened ball valve, one-way valve, relief valve etc.During system worked well, pressure oil is divided into two-way by the pipeline of connected system hydraulic oil source, one road to the pipeline being connected to equipment for equipment provides pressurized hydraulic oil, one-way valve of leading up to is Accumulator arrangements pressurising, after pressure reaches setting, hydraulic fluid pressure reaches the oil pressure relief of relief valve, flows back into fuel tank after hydraulic oil overflow by return line.Need manually opened ball valve when the device is powered off, then the pressurized hydraulic oil of Accumulator arrangements is communicated to pipeline, for equipment provides emergency power.
Manually opened hydraulic emergency feed circuit needs manually opened ball valve to carry out as equipment supplementary pressure hydraulic oil, its shortcoming has two: one, Accumulator arrangements is often arranged in 1 grade, stokehold platform together with pumping station system, and in the operation set of stokehold, be arranged in 2 grades of platforms, upper and lower platform operations is needed time manually opened, speed is slow, is unfavorable for the rapid response tapped a blast furnace in stokehold; Its two, there is high pressure conditions in ball valve and Accumulator arrangements connecting end, manually opened difficulty large all the time.
Model utility content
For solving the deficiency that existing hydraulic emergency feed circuit exists, the purpose of this utility model is to provide a kind of hydraulic emergency feed circuit, and rapidly, without the need to upper lower bolster manual operation, easy to use going needs manually-operable in this hydraulic emergency feed circuit response.
The utility model solves by the following technical programs:
A kind of hydraulic emergency feed circuit, the hydraulic oil circuit comprising Accumulator arrangements and be connected with described Accumulator arrangements, described hydraulic oil circuit comprises overflow portion and repairing control section, the entrance of described repairing control section is connected with hydraulic power pipeline, hydraulic power pipeline is also connected with to the equipment pipeline of equipment fuel feeding, the outlet of repairing control section is connected with the entrance of described Accumulator arrangements, overflow portion.
Described repairing control section is provided with Pilot operated check valve and Solenoid ball valve, the entrance of described Pilot operated check valve is connected with hydraulic power pipeline, the outlet of Pilot operated check valve is connected with the entrance of Accumulator arrangements, the hydraulic control oil circuit of Pilot operated check valve is provided with the fuel feeding of the oil circuit control that can control Pilot operated check valve and the control valve of oil-break.
Described Pilot operated check valve selects the type Pilot operated check valve that leaks, and the outer drain port of Pilot operated check valve is connected with return line.
Described control valve selects two-position three-way electromagnetic ball valve.
Described overflow portion comprises off-load ball valve and relief valve, and the described entrance of off-load ball valve and the entrance of relief valve are connected with the outlet of described Pilot operated check valve, and the entrance of off-load ball valve and the outlet of relief valve are connected with return line.
The utility model has following beneficial effect:
The utility model can control the fuel feeding of the oil circuit control of Pilot operated check valve and the Solenoid ball valve of oil-break by using Pilot operated check valve and arranging on the hydraulic control oil circuit of Pilot operated check valve, when equipment normally works, Solenoid ball valve makes oil circuit control oil-break, when power is off, Solenoid ball valve makes oil circuit control get through, be equipment pipeline fuel feeding by Accumulator arrangements, hydraulic emergency feed circuit of the present utility model has the advantages such as response is rapid, easy to use, safe and reliable, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is Accumulator arrangements; 2 is off-load ball valve; 3 is relief valve; 4 is control valve; 5 is Pilot operated check valve; 6 is return line; 7 is hydraulic power pipeline; 8 is equipment pipeline.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the hydraulic oil circuit that the utility model comprises Accumulator arrangements 1 and is connected with described Accumulator arrangements 1, described hydraulic oil circuit comprises overflow portion and repairing control section, the entrance of described repairing control section is connected with hydraulic power pipeline 7, hydraulic power pipeline 7 is also connected with to the equipment pipeline 8 of equipment fuel feeding, the outlet of repairing control section is connected with the entrance of described Accumulator arrangements 1, overflow portion.
Described repairing control section is provided with Pilot operated check valve 5 and Solenoid ball valve 4, the entrance of described Pilot operated check valve 5 is connected with hydraulic power pipeline 7, Pilot operated check valve 5 selects the type Pilot operated check valve that leaks, the outer drain port of Pilot operated check valve 5 is connected with return line 6, the outlet of Pilot operated check valve 5 is connected with the entrance of Accumulator arrangements 1, the hydraulic control oil circuit of Pilot operated check valve 5 is provided with the fuel feeding of the oil circuit control that can control Pilot operated check valve 5 and the control valve 4 of oil-break, control valve 4 selects two-position three-way electromagnetic ball valve.
Described overflow portion comprises off-load ball valve 2 and relief valve 3, and the entrance of described off-load ball valve 2 and the entrance of relief valve 3 are connected with the outlet of described Pilot operated check valve 5, and the entrance of off-load ball valve 2 and the outlet of relief valve 3 are connected with return line 6.
Working principle of the present utility model:
During system worked well, hydraulic oil is shunted from hydraulic power pipeline 7, and equipment pipeline 8 of leading up to flows to equipment, and for equipment use, a road flows into from the entrance of Pilot operated check valve 5, then flows out from the outlet of Pilot operated check valve 5;
From the hydraulic oil shunting that the outlet of Pilot operated check valve 5 is flowed out, one road flows to the entrance of Accumulator arrangements 1, for Accumulator arrangements 1 carries out pressurising, one road flows to overflow portion, when the pressure of hydraulic oil exceedes the setting pressure of overflow portion, hydraulic system by off-load ball valve 2 and relief valve 3 for hydraulic system carries out decompression protection;
"on" position is in as the Solenoid ball valve of control valve 4 during system worked well, now 401 and 403 hydraulic fluid ports of control valve 4 are in connected state, the hydraulic control oil circuit of Pilot operated check valve 5 is in oil-break state, can only one-way flow by the hydraulic oil of Pilot operated check valve 5, namely hydraulic oil can only flow into from the entrance of Pilot operated check valve 5, and outlet is flowed out.
When system cut-off, spring as the Solenoid ball valve of control valve 4 resets immediately, now 402 and 403 hydraulic fluid ports of control valve 4 are in connected state, the pressurized hydraulic oil of Accumulator arrangements 1 can flow into the hydraulic control hydraulic fluid port of Pilot operated check valve 5 by control valve 4 and open it, Pilot operated check valve 5 can realize two-way flow, the pressurized hydraulic oil of Accumulator arrangements 1 flows into from the outlet of Pilot operated check valve 5, entrance flows out, then pressurized hydraulic oil by equipment pipeline 8 for equipment carries out emergent repairing, and the leakage oil that Pilot operated check valve 5 inside produces flows into return line 6 by outer drain port.
When system resumes power, control valve 4 is in "on" position, time control valve 4 401 and 403 hydraulic fluid ports return to connected state again immediately, the hydraulic control oil circuit of Pilot operated check valve 5 reverts to again oil-break state, can only one-way flow by the hydraulic oil of Pilot operated check valve 5, system recovers again normal work.
The utility model controls repairing control section by using Solenoid ball valve, make in this hydraulic emergency feed circuit of power-off response rapidly, without the need to upper lower bolster manual operation, easy to use, without the need to manually-operable, safe and reliable, after restoring electricity, in time stopping repairing action, preventing people for wasting energy after forgetting, energy-conserving and environment-protective.
Claims (5)
1. a hydraulic emergency feed circuit, the hydraulic oil circuit comprising Accumulator arrangements (1) and be connected with described Accumulator arrangements (1), it is characterized in that, described hydraulic oil circuit comprises overflow portion and repairing control section, the entrance of described repairing control section is connected with hydraulic power pipeline (7), hydraulic power pipeline (7) is also connected with to the equipment pipeline (8) of equipment fuel feeding, the outlet of repairing control section is connected with the entrance of described Accumulator arrangements (1), overflow portion.
2. a kind of hydraulic emergency feed circuit according to claim 1, it is characterized in that, described repairing control section is provided with Pilot operated check valve (5) and Solenoid ball valve (4), the entrance of described Pilot operated check valve (5) is connected with hydraulic power pipeline (7), the outlet of Pilot operated check valve (5) is connected with the entrance of Accumulator arrangements (1), the hydraulic control oil circuit of Pilot operated check valve (5) is provided with the fuel feeding of the oil circuit control that can control Pilot operated check valve (5) and the control valve (4) of oil-break.
3. a kind of hydraulic emergency feed circuit according to claim 2, it is characterized in that, described Pilot operated check valve (5) selects the type Pilot operated check valve that leaks, and the outer drain port of Pilot operated check valve (5) is connected with return line (6).
4. a kind of hydraulic emergency feed circuit according to claim 2, is characterized in that, described control valve (4) selects two-position three-way electromagnetic ball valve.
5. a kind of hydraulic emergency feed circuit according to claim 1 and 2, it is characterized in that, described overflow portion comprises off-load ball valve (2) and relief valve (3), the entrance of described off-load ball valve (2) and the entrance of relief valve (3) are connected with the outlet of described Pilot operated check valve (5), and the outlet of off-load ball valve (2) and the outlet of relief valve (3) are connected with return line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288921.2U CN204610393U (en) | 2015-05-06 | 2015-05-06 | A kind of hydraulic emergency feed circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288921.2U CN204610393U (en) | 2015-05-06 | 2015-05-06 | A kind of hydraulic emergency feed circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204610393U true CN204610393U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520288921.2U Active CN204610393U (en) | 2015-05-06 | 2015-05-06 | A kind of hydraulic emergency feed circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194859A (en) * | 2016-09-30 | 2016-12-07 | 上海振华重工(集团)股份有限公司 | The electro-hydraulic brake hydraulic system of straddle carrier and control method thereof |
| CN109281876A (en) * | 2018-11-30 | 2019-01-29 | 博纳斯威阀门股份有限公司 | A kind of wind light mutual complementing electrohydraulic actuator |
| CN110259736A (en) * | 2019-07-01 | 2019-09-20 | 中国重型机械研究院股份公司 | A kind of automatic oil supply and discharge safe hydraulic pressure control system |
| CN115233600A (en) * | 2022-08-23 | 2022-10-25 | 杰瑞环境科技有限公司 | Sweeper and control method thereof |
-
2015
- 2015-05-06 CN CN201520288921.2U patent/CN204610393U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194859A (en) * | 2016-09-30 | 2016-12-07 | 上海振华重工(集团)股份有限公司 | The electro-hydraulic brake hydraulic system of straddle carrier and control method thereof |
| CN109281876A (en) * | 2018-11-30 | 2019-01-29 | 博纳斯威阀门股份有限公司 | A kind of wind light mutual complementing electrohydraulic actuator |
| CN110259736A (en) * | 2019-07-01 | 2019-09-20 | 中国重型机械研究院股份公司 | A kind of automatic oil supply and discharge safe hydraulic pressure control system |
| CN115233600A (en) * | 2022-08-23 | 2022-10-25 | 杰瑞环境科技有限公司 | Sweeper and control method thereof |
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