CN102913498A - Energy-saving device for hydraulic plunger pump of pressure filter - Google Patents
Energy-saving device for hydraulic plunger pump of pressure filter Download PDFInfo
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- CN102913498A CN102913498A CN2012104239173A CN201210423917A CN102913498A CN 102913498 A CN102913498 A CN 102913498A CN 2012104239173 A CN2012104239173 A CN 2012104239173A CN 201210423917 A CN201210423917 A CN 201210423917A CN 102913498 A CN102913498 A CN 102913498A
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- pump
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- pressure zone
- saving device
- pressure filter
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Abstract
An energy-saving device for a hydraulic plunger pump of a pressure filter is characterized in that a large discharge pump and a small discharge pump of a proportional double pump are connected to a reversing valve through a large diameter overflow valve and a small diameter overflow valve respectively and via a pressure sensor and a control module together, and the reversing valve is connected with a hydraulic cylinder. By the proportional double pump, the device can realize large discharge oil supply of the two pumps in a low pressure zone, single oil supply of the small discharge pump in a high pressure zone, and no-loading of the two pumps in a constant pressure zone, thereby running without overflow; and the load of a motor in the high pressure zone is close to that in the low pressure zone, so that the efficiency is improved, the oil temperature is lowered, and precious resources are saved by half.
Description
Technical field
The present invention relates to a kind of pressure filter hydraulic planger pump, refer in particular to a kind of energy saving device of pressure filter hydraulic planger pump.
Background technique
At present, both at home and abroad the hydraulic system of pressure filter hydraulic planger pump by an oil hydraulic pump by relief valve and selector valve to the oil hydraulic cylinder fuel feeding.Because of pressure filter hydraulic planger pump operating mode more special, large discharge capacity supply time is shorter during low pressure area, increase along with pressure filter charging resistance, the cylinder pressure of pressure filter hydraulic planger pump rises, fuel delivery descends, motor load rises, when pressure rise arrives the setting value of relief valve, because the hydraulic pressure pump delivery is always constant, just causes a large amount of hydraulic oil to overflow to fuel tank from relief valve, make motor in the always heavy duty to the zone of high pressure of middle nip, areas of permanent pressure particularly, so inefficiency, oil temperature is high, has wasted the valuable energy.
Summary of the invention
The object of the invention is to solve the energy waste problem of existing pressure filter hydraulic planger pump, a kind of energy saving device of pressure filter hydraulic planger pump is provided.The large discharge capacity fuel feeding of double pump when this device is realized low pressure area by the ratio duplex pump, the independent fuel feeding of small displacement pump during the zone of high pressure, double pump is unloaded during areas of permanent pressure, realization moves without overflow, motor is approached in the load of zone of high pressure and the load of low pressure area, therefore improve efficient, reduced oil temperature, saved nearly one times valuable energy.
For achieving the above object, the solution that the present invention takes is: a kind of energy saving device of pressure filter hydraulic planger pump, large discharge pump and small displacement pump by the ratio duplex pump pass through respectively a large drift diameter over-flow valve and little drift diameter over-flow valve, jointly be connected to a selector valve through pressure transducer and control module, selector valve connecting fluid cylinder pressure.
When the pressure filter hydraulic planger pump when low pressure area is worked, the ratio duplex pump is fuel feeding simultaneously, reaches maximum pump discharge; When pressure transducer detects working pressure and reaches the pressure set points of control module, to control large drift diameter over-flow valve and make the large discharge pump on the ratio duplex pump unloaded, the small displacement pump continues fuel feeding, until the zone of high pressure; When pressure transducer detects working pressure and reaches the high pressure setting value of control module, control little drift diameter over-flow valve and make the small displacement pump unloaded, enter areas of permanent pressure, load and the low pressure area of motor are approached, reduce oil temperature, improved efficient, saved nearly one times valuable energy.
Description of drawings
Fig. 1 is the present embodiment structural representation.
Among the figure: 1, fuel tank, 2, the ratio duplex pump, 3, the small displacement pump, 4, large discharge pump, 5, little drift diameter over-flow valve, 6, large drift diameter over-flow valve, 7, pressure transducer, 8, control module, 9, selector valve, 10, oil hydraulic cylinder.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is remake description.
Referring to Fig. 1, a kind of energy saving device of pressure filter hydraulic planger pump, the large discharge pump 4 of ratio duplex pump 2 and small displacement pump 3 are respectively by a large drift diameter over-flow valve 6 and little drift diameter over-flow valve 5, jointly be connected to a selector valve 9 through pressure transducer 7 and control module 8, selector valve 9 connecting fluid cylinder pressures 10.
Claims (1)
1. the energy saving device of a pressure filter hydraulic planger pump, it is characterized in that: the large discharge pump (4) of ratio duplex pump (2) and small displacement pump (3) are respectively by a large drift diameter over-flow valve (6) and little drift diameter over-flow valve (5), jointly be connected to a selector valve (9) through pressure transducer (7) and control module (8), selector valve (9) connecting fluid cylinder pressure (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423917.3A CN102913498B (en) | 2012-10-18 | 2012-10-18 | A kind of energy saver of filter press hydraulic planger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423917.3A CN102913498B (en) | 2012-10-18 | 2012-10-18 | A kind of energy saver of filter press hydraulic planger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102913498A true CN102913498A (en) | 2013-02-06 |
| CN102913498B CN102913498B (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210423917.3A Active CN102913498B (en) | 2012-10-18 | 2012-10-18 | A kind of energy saver of filter press hydraulic planger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN102913498B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109973A (en) * | 2021-11-29 | 2022-03-01 | 贵州凯星液力传动机械有限公司 | Vehicle-mounted hydraulic control system |
Citations (6)
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|---|---|---|---|---|
| JP3609182B2 (en) * | 1996-01-08 | 2005-01-12 | 日立建機株式会社 | Hydraulic drive unit for construction machinery |
| CN201170758Y (en) * | 2008-01-17 | 2008-12-24 | 圣路机械(嘉兴)制造有限公司 | Loading hydraulic system for hydraulic steerable wheel loading tester |
| CN101940106A (en) * | 2010-07-17 | 2011-01-12 | 石河子大学 | Hydraulic system for self-propelled tomato harvester |
| CN102155007A (en) * | 2011-01-28 | 2011-08-17 | 黄河勘测规划设计有限公司 | Hydraulic system for trolley driving mechanism of inclined sliding door hoist |
| CN201962652U (en) * | 2011-01-28 | 2011-09-07 | 黄河勘测规划设计有限公司 | Hydraulic system of diagonal tension door type hoist trolley driving mechanism |
| CN202883529U (en) * | 2012-10-18 | 2013-04-17 | 温州市森泰环保设备有限公司 | Energy-saving device of hydraulic piston pump of filter press |
-
2012
- 2012-10-18 CN CN201210423917.3A patent/CN102913498B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3609182B2 (en) * | 1996-01-08 | 2005-01-12 | 日立建機株式会社 | Hydraulic drive unit for construction machinery |
| CN201170758Y (en) * | 2008-01-17 | 2008-12-24 | 圣路机械(嘉兴)制造有限公司 | Loading hydraulic system for hydraulic steerable wheel loading tester |
| CN101940106A (en) * | 2010-07-17 | 2011-01-12 | 石河子大学 | Hydraulic system for self-propelled tomato harvester |
| CN102155007A (en) * | 2011-01-28 | 2011-08-17 | 黄河勘测规划设计有限公司 | Hydraulic system for trolley driving mechanism of inclined sliding door hoist |
| CN201962652U (en) * | 2011-01-28 | 2011-09-07 | 黄河勘测规划设计有限公司 | Hydraulic system of diagonal tension door type hoist trolley driving mechanism |
| CN202883529U (en) * | 2012-10-18 | 2013-04-17 | 温州市森泰环保设备有限公司 | Energy-saving device of hydraulic piston pump of filter press |
Non-Patent Citations (2)
| Title |
|---|
| 冯兰梅: "变频调速技术在可降解餐盒压机中的应用", 《晋城职业技术学院学报》 * |
| 周志根: "厢式压滤机典型液压系统的设计、改进与对比分析", 《液压与气动》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109973A (en) * | 2021-11-29 | 2022-03-01 | 贵州凯星液力传动机械有限公司 | Vehicle-mounted hydraulic control system |
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| Publication number | Publication date |
|---|---|
| CN102913498B (en) | 2017-07-07 |
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Effective date of registration: 20180201 Address after: Highway 01 section of Xinhai Economic Development Zone Jiaxing Haiyan County of Zhejiang province 314300 City No. 1 Patentee after: Zhejiang Senyou Environmental Protection Complete Equipment Co., Ltd. Address before: Yueqing City, Zhejiang province 325609 Tiancheng Industrial Zone Patentee before: Wenzhou City Sentai Environmental Protection Equipment Co., Ltd. |
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