CN104235103A - Electromagnetic unloading valve - Google Patents
Electromagnetic unloading valve Download PDFInfo
- Publication number
- CN104235103A CN104235103A CN201410465728.1A CN201410465728A CN104235103A CN 104235103 A CN104235103 A CN 104235103A CN 201410465728 A CN201410465728 A CN 201410465728A CN 104235103 A CN104235103 A CN 104235103A
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- China
- Prior art keywords
- unloading
- unloading valve
- assembly
- electromagnetic
- valve body
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- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an electromagnetic unloading valve. The electromagnetic unloading valve is provided with an unloading valve assembly, wherein a pilot overflow assembly is arranged on the upper part of the unloading valve body assembly; an electromagnetic valve assembly and a filter are arranged on the side face of the unloading valve body assembly; an inlet, an outlet, an unloading hole and a pressure induction damping hole are designed in the cavity of the unloading valve body assembly. A brand new electromagnetic unloading structure is designed specific to the defects that the service lives of other parts in a hydraulic system are shortened and the system cannot be brought into full play due to low working pressure of the conventional unloading valve in the hydraulic system and inconvenience in controlling, so that the working effect of the system is enhanced, the reliability, sensitivity and recoverability are enhanced, and reliability and safety are realized.
Description
Technical field
The present invention relates to ultrahigh pressure fracturing technology, bulge test system, hydraulic system feed flow and overpressure protection, high-pressure cleaning system.
Background technique
Steel mill's descaling system has the electromagnetic unloading valve of 0 ~ 70MPa regulation range, an important indicator of system energy reliable operation is exactly hydraulic pressure Unloading Control ability, electromagnetic unloading valve is the parts performing control ability, the wherein reliability of feather valve, sensitivity and restorative, decide quality and the working life of whole system workmanship, simultaneously also to system peripherals auxiliary equipment, as normal uses the such as hydraulic support have a direct impact.Electromagnetic unloading valve is the critical component of above-mentioned technique, and the basic demand of design ensures technological process safety, reliable and economical operation exactly.
At present; along with the development of modern control technology; ultrahigh pressure fracturing technology, bulge test system, hydraulic system feed flow and overpressure protection; high-pressure cleaning system; control system in steel mill's descaling system all applies modern detecting, monitors hydraulic system pressure in real time, but to the unloading aspect that system shields; the feather valve working pressure used is not high yet, and is mechanical setting structure mostly.Have a strong impact on the normal work of above system, cause prime mover energy ezpenditure large, supporting hydraulic pressure component is short for working life.
Therefore, pressure-bearing safety is taken into full account in 70MPa electromagnetic unloading valve machinery guide-electromagnetic structure design, seal the factors such as reliable, design simultaneously have be convenient to detect, the tracting pressuring hole of guide's function and telecontrol hole, Electromagnetic Control technology is fully combined with feather valve, control feather valve unloading by system program and recover feed flow, effectively overcome above-mentioned situation, motor power consumption can be reduced, minimizing system is generated heat, in the working life of better prolongation hydraulic system component, improve the working efficiency of system.Said system utilizes such electromagnetic unloading valve form just imperative.
Summary of the invention
Object of the present invention, not high for feather valve working pressure traditional in hydraulic system, control inconvenience, cause other part minimizing in working life of hydraulic system, the deficiency that system well can not play the aspects such as its effect is started with, and then the brand-new electromagnetic type unloading-structure of one of design, to improve system works effect, strengthen reliability, sensitivity and restorative, reach reliable and secure.
Electromagnetic type feather valve, has unloading valve body assembly, and described unloading valve body assembly top is provided with guide's overflow assembly, and side is installed by solenoid valve assembly and filter; And be designed with import, exhaust port, unloading port, impulse damping hole in the cavity of unloading valve body assembly.
Imported hydraulic medium is by the impulse damping hole of unloading valve body assembly, be incorporated in guide's overflow assembly, overcome its pretightening force, guide's overflow assembly is opened, and high-pressure medium is through filter, solenoid valve place is arrived again by impulse damping hole, control system sends action command, and solenoid valve action is opened, and unloading spool is opened, discharge spool is closed, and medium is discharged from unloading port.
The feature of such scheme is:
(1) design of valve body is unloaded in the present invention, import, unloading port, exhaust port, impulse damping hole are all concentrated on a valve body, avoid in conventional design, its block design being integrally connected again, such design effectively can reduce sealing place, make it seal reliably, ensure to make that liquid is uniform in order passes through valve body by control overflow;
(2) in feather valve overall construction design, adopt the thinking of impulse damping hole to be combined with guide's overflow assembly by solenoid valve, like this by the work of the break-make order control feather valve of solenoid valve, make solenoid valve install quickly and easily, interchangeability is strong simultaneously;
(3) because impulse damping hole size is less, avoid blocking, filtration treatment is carried out to unloading impulse one tunnel, in feather valve body side surface mounting filter, effectively this road medium is filtered, make impulse loop unimpeded, ensure the work of feather valve normal reliable.
Accompanying drawing explanation
Fig. 1 is electromagnetic type feather valve structural representation of the present invention.Figure number illustrates: 1-unloads valve body assembly, 2-guide's overflow assembly, 3-solenoid valve assembly, 4-filter, 5-exhaust port, 6-discharge spool, 7-impulse damping hole, 8-import, 10-unloading spool.
Embodiment
1, mentality of designing of the present invention is:
1) unloading valve body assembly internal structure and size (see accompanying drawing 1) is determined according to hydraulic system;
2) according to the head pressure scope of hydraulic work system parameter determination feather valve;
3) determine guide's overflow assembly cracking pressure scope according to hydraulic work system parameter and be arranged on the position and size that unload valve body;
4) according to guide's overflow assembly cracking pressure assembly, determine electromagnetic valve pressure, determine that impulse damping hole is in valve body position;
5) determine solenoid valve, filter location and Conncetion cimension are installed according to unloading valve body assembly;
2, main structure summary (see photo):
This structure is combined by component such as unloading valve body assembly, guide's overflow assembly, solenoid valve, filter, equalizing valve components structure, size and mounting point is determined successively according to designed feather valve body structure and size, the size of the installation of electromagnetic valve components, filter component and position, wherein unload valve body indoor design and take into full account guide's overflow equilibrium principle, determine the route of its impulse damping hole, size.
3, cardinal principle summary:
There are two kinds of working staties in this structure, a kind of for normally to discharge state, one is unloaded state, when being in normal discharge state, the pressure that import medium produces, can only overcome valve inner and discharge initial tension of spring, but deficiency has overcome unloaded spring pretightening force and unloading spool hydraulic resultant force, therefore only having discharge spool to open, medium is normally discharged from exhaust port; When inlet pressure exceedes predetermined unloading pressure, pressure signal is passed to control system by solenoid valve upper sensor, control system sends solenoid valve and opens order, solenoid valve action is opened, and unloads a road through, and unloading spool hydraulic resultant force disappears, overcome unloaded spring pretightening force, discharge spool is closed, and unloading spool is opened, and medium is emptying from unloading port.
4, main technique technical parameter:
Unloading scope: 10 ~ 70MPa
Maximum discharging quantity: 530 L/min
Maximum pressure: 70MPa
Fed sheet of a media: emulsified liquid, clear water etc.
Claims (1)
1. electromagnetic type feather valve, has unloading valve body assembly (1), it is characterized in that: described unloading valve body assembly (1) top is provided with guide's overflow assembly (2), and side is installed by solenoid valve assembly (3) and filter (4); And be designed with import (8), exhaust port (5), unloading port (9), impulse damping hole (7) in the cavity of unloading valve body assembly (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465728.1A CN104235103A (en) | 2014-09-15 | 2014-09-15 | Electromagnetic unloading valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465728.1A CN104235103A (en) | 2014-09-15 | 2014-09-15 | Electromagnetic unloading valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235103A true CN104235103A (en) | 2014-12-24 |
Family
ID=52223820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410465728.1A Pending CN104235103A (en) | 2014-09-15 | 2014-09-15 | Electromagnetic unloading valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235103A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219511A (en) * | 2019-10-29 | 2020-06-02 | 北京天地玛珂电液控制系统有限公司 | Electromagnetic unloading valve for aqueous medium mine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0743460A1 (en) * | 1995-05-19 | 1996-11-20 | HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG | Electrohydraulic lifting device |
| CN201461572U (en) * | 2009-08-06 | 2010-05-12 | 上海科鑫电液控制设备有限公司 | Six-path pilot-operated proportional relief valve |
| CN201671900U (en) * | 2010-05-19 | 2010-12-15 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
| CN101936315A (en) * | 2010-09-20 | 2011-01-05 | 竺浩君 | Zero-leakage unloading valve bank |
| CN202209325U (en) * | 2011-09-19 | 2012-05-02 | 上海七洋液压机械有限公司 | Electro-hydraulic proportional control backpressure overflow valve for injection molding machine |
| CN202851489U (en) * | 2012-08-22 | 2013-04-03 | 上海科鑫电液控制设备有限公司 | Hydraulic proportional overflow valve |
| CN204127006U (en) * | 2014-09-15 | 2015-01-28 | 宝鸡航天动力泵业有限公司 | Electromagnetic type feather valve |
-
2014
- 2014-09-15 CN CN201410465728.1A patent/CN104235103A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0743460A1 (en) * | 1995-05-19 | 1996-11-20 | HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG | Electrohydraulic lifting device |
| CN201461572U (en) * | 2009-08-06 | 2010-05-12 | 上海科鑫电液控制设备有限公司 | Six-path pilot-operated proportional relief valve |
| CN201671900U (en) * | 2010-05-19 | 2010-12-15 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
| CN101936315A (en) * | 2010-09-20 | 2011-01-05 | 竺浩君 | Zero-leakage unloading valve bank |
| CN202209325U (en) * | 2011-09-19 | 2012-05-02 | 上海七洋液压机械有限公司 | Electro-hydraulic proportional control backpressure overflow valve for injection molding machine |
| CN202851489U (en) * | 2012-08-22 | 2013-04-03 | 上海科鑫电液控制设备有限公司 | Hydraulic proportional overflow valve |
| CN204127006U (en) * | 2014-09-15 | 2015-01-28 | 宝鸡航天动力泵业有限公司 | Electromagnetic type feather valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219511A (en) * | 2019-10-29 | 2020-06-02 | 北京天地玛珂电液控制系统有限公司 | Electromagnetic unloading valve for aqueous medium mine |
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Application publication date: 20141224 |
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| RJ01 | Rejection of invention patent application after publication |