CN104634549A - Apparatus and method of quickly testing performance of two-position three-way electromagnet directional valve - Google Patents
Apparatus and method of quickly testing performance of two-position three-way electromagnet directional valve Download PDFInfo
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- CN104634549A CN104634549A CN201310574390.9A CN201310574390A CN104634549A CN 104634549 A CN104634549 A CN 104634549A CN 201310574390 A CN201310574390 A CN 201310574390A CN 104634549 A CN104634549 A CN 104634549A
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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 88
- 229910052742 iron Inorganic materials 0.000 claims description 44
- 238000012795 verification Methods 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 230000002950 deficient Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- Indication Of The Valve Opening Or Closing Status (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to the field of electromagnetic valve performance testing, in particular to an apparatus and a method of quickly testing performance of two-position three-way electromagnet directional valve. The apparatus comprises a compressive locking device, a command signal drive unit, a pressure generation unit and a directional valve pairing checker; each oil pipeline is provided with a pressure output indicator; before checking, a charge loop output pipeline, a charge cut-off loop output pipeline, a check pressure output pipeline, a discharge cut-off loop output pipeline and a discharge loop output pipeline are formed; signals are sent to a discharge coil and/or a charge coil; values of the pressure output indicators are detected; the performances of the valves are comparatively judged according to the values, and checking is achieved. The apparatus and the method have the advantages that the performances of the valves is subjected to offline testing, the defective ones of the valves are sorted and removed, quantitative data judging is available, reliability is high, faults can be eliminated in time, and the apparatus and the method are visually and evidently significant and have a wide range of field popularization and application.
Description
Technical field
The present invention relates to magnetic valve performance detection field, particularly relate to a kind of electromagnet direction valve proving installation and method of testing.
Background technology
The Mill Systems of power plant is the feed unit of fuel, and usual power plant arranges multiple stage coal pulverizer shared unit 350MW generation load.Multiple stage unit connects and just needs to utilize two-position three-way electromagnetic iron direction valve, regulates the oil supply system of multiple stage coal pulverizer all to have installation, can normally work to maintain coal pulverizer charge oil pressure at setting.The structure of two-position three-way electromagnetic iron direction valve as shown in Figure 1, the two ends of valve body 3 are respectively unloading coil 1 and fill carries coil 6, unloading coil 1 is controlled by electric signal with the action of filling year coil 6, valve body 3 is provided with five hydraulic fluid ports, be respectively to fill and carry mouth 31, fill and carry cut-off mouth 32, main oil-in 33, unloading cut-off mouth 34 and unloading port 35, the course of work describing correct two-position three-way electromagnetic iron direction valve realizes being the oil inlet quantity relying on the oil-filled and emptying coil motion of two sides, left and right to change hydraulic oil in oil circuit, its action request must reach following 2 points: switching action is normal, switch rear oil duct and effectively isolate No leakage.Wherein any one link goes wrong and oil pressure all can be caused to set up extremely, and the former can cause the too high or too low device damage caused of power oil, and the latter can because oil pressure can not set up the equipment cisco unity malfunction caused.
Two-position three-way electromagnetic iron direction valve is a kind of erecting equipment of modular, namely it relies on O-ring seal and forcing screw to realize with connecting of body equipment, do not possess verification port, therefore the inspection of the course of work of two-position three-way electromagnetic iron direction valve cannot realize at the scene, for the potential faults None-identified existed and intervention.The two-position three-way electromagnetic iron direction valve fault in power generation process repeatedly occurred in recent years because compressing oil pressure causes unit generation load to reduce fully loaded 1/5, these serious problems.
Just can know and process after generation problem be the maintaining method that we expect, because this loss brought is too huge.We need to stop in maintenance at unit, grasp the failure message of two-position three-way electromagnetic iron direction valve, and carry out corresponding process in time.
Therefore, precognition how can be positive the problem existing for two-position three-way electromagnetic iron direction valve that the oil supply system of process coal pulverizer is in time installed avoid it to break down online affects the problem of unit normal power generation; And the reason that two-position three-way electromagnetic iron direction valve fault occurs can be judged fast, avoid unnecessary maintenance cost expenditure.Faced by we need actively ensureing genset safety while.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of two-position three-way electromagnetic iron direction valve performance device for quick testing and method of testing, maintainer can carry out quantitative data to two-position three-way electromagnetic iron direction valve by these apparatus and method and judge, reliability is high, is convenient to eliminate faulty intrinsic in time.
The present invention is achieved in that a kind of two-position three-way electromagnetic iron direction valve performance device for quick testing, comprise pressing and locking device, command signal driver element, pressure generating unit and direction valve pairing check block, described direction valve pairing check block is pressed abd fixed on valve body by pressing and locking device, described direction valve pairing check block is provided with the verification be communicated with the hydraulic fluid port one_to_one corresponding of valve body and accesses joint; Described command signal driver element and pressure generating unit are arranged on off-line calibration equipment body, command signal driver element carries a signal wire respectively by unloader signal line and drives to be connected and unload coil and fill a year coil with filling, and pressure generating unit passes through an oil pipe line connection verification corresponding with main oil-in and accesses joint; The verification access joint that hydraulic fluid port other on valve body is corresponding is also connected with an independently oil pipe line separately, the oil pipe line described in every root is all equipped with Output pressure indicating gauge.
This proving installation also comprises pipeline stiff end row, and described oil pipe line is erected on pipeline stiff end row.
Described pressing and locking device comprises pressing plate, cap got rid of by pressing plate, regulating wheel, adjustment screw rod, set nut and propclip, described propclip is two pairs of C font clamping plate, two pairs of propclips are separately positioned on the two ends of valve body, propclip is got rid of cap by pressing plate and pressing plate and direction valve is matched check block and be pressed on valve body, and coordinating fastening with set nut by adjustment screw rod, described regulating wheel is arranged on the top of adjustment screw rod.
A kind of two-position three-way electromagnetic iron direction valve performance method for rapidly testing, is carried a mouth by total the filling of the two-position three-way electromagnetic iron direction valve that verifies, fills and carry a cut-off mouth, main oil-in, unloading cut-off mouth and unloading port five hydraulic fluid ports, comprise the following steps:
Step one, before verification respectively with five independently and the oil pipe line that Output pressure indicating gauge is housed is communicated with five hydraulic fluid ports, formed to fill and carry a loop output pipe, fill and carry a cut-off loop output pipe, verification Output pressure pipeline, unloading cut-off loop output pipe, relief circuit output pipe;
Step 2, to verification with Output pressure pipeline build-up pressure to setting, and transmit a signal to unloading coil and/or fill a year coil, detect the numerical value of each Output pressure indicating gauge simultaneously, compare to determine the performance of two-position three-way electromagnetic iron direction valve according to this numerical value, complete verifying work.
Two-position three-way electromagnetic iron direction valve performance device for quick testing of the present invention and method of testing carry out independent off-line test to two-position three-way electromagnetic iron direction valve serviceability, can test fast serviceability by checking in maintenance process, combing and eliminating are carried out to the two-position three-way electromagnetic iron direction valve of deterioration, better ensures upper machine qualification rate; Maintainer can carry out quantitative data to two-position three-way electromagnetic iron direction valve by these apparatus and method and judge, reliability is high, is convenient to eliminate faulty intrinsic in time, and meaning is directly perceived and remarkable, can have scene widely and promote the use space.
Accompanying drawing explanation
Fig. 1 is existing two-position three-way electromagnetic iron direction valve structural representation;
Fig. 2 is the schematic diagram of two-position three-way electromagnetic iron direction valve performance device for quick testing of the present invention when verifying;
Fig. 3 is the structural representation of pressing and locking device in the present invention;
Fig. 4 is that in the present invention, direction valve is matched the structural representation of check block when being clamped on valve body by pressing and locking device;
Fig. 5 is the principle diagram of instruction signal driving unit in the present invention;
Fig. 6 is checking process schematic block diagram of the present invention;
Fig. 7 be the present invention verify two-position three-way electromagnetic iron direction valve fill carry normal time schematic diagram;
Fig. 8 is that the present invention verifies two-position three-way electromagnetic iron direction valve and fills schematic diagram when carrying abnormal;
Fig. 9 is the schematic diagram that the present invention verifies when two-position three-way electromagnetic iron direction valve ends normal;
Figure 10 is the schematic diagram that the present invention verifies when two-position three-way electromagnetic iron direction valve ends abnormal.
In figure: 1 unloading coil, 2 unloader signal lines, 3 valve bodies, 4 pressing and locking devices, 5 fill a year signal wire, 6 fill a year coil, 7 command signal driver elements, 8 pressure generating unit, 9 fill year loop exports indicating gauge, 10 fill a year loop output pipe, 11 off-line calibration equipment bodies, 12 direction valve pairing check blocks, 13 verification access joints, 14 pipeline stiff end rows, 15 relief circuits export indicating gauge, 16 relief circuit output pipes, 17 unloading cut-off loops export indicating gauge, 18 unloading cut-off loop output pipes, Output pressure indicating gauge is used in 19 verifications, 20 fill a year cut-off loop output pipe, 21 fill a year cut-off loop exports indicating gauge, Output pressure pipeline is used in 22 verifications, 31 fill a year mouth, 32 fill a year cut-off mouth, 33 main oil-ins, 34 unloading cut-off mouths, 35 unloading ports, 41 pressing plates, cap got rid of by 42 pressing plates, 43 regulating wheels, 44 adjustment screw rods, 45 set nuts, 46 propclips.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's statement.
Embodiment 1
As shown in Figure 2, a kind of two-position three-way electromagnetic iron direction valve performance device for quick testing, comprise pressing and locking device 4, command signal driver element 7, pressure generating unit 8 and direction valve pairing check block 12, described direction valve pairing check block 12 is pressed abd fixed on valve body 3 by pressing and locking device 4, described direction valve pairing check block 12 is provided with the verification be communicated with the hydraulic fluid port one_to_one corresponding of valve body 3 and accesses joint 13; Described command signal driver element 7 and pressure generating unit 8 are arranged on off-line calibration equipment body 11, and command signal driver element 7 carries a signal wire 5 respectively by unloader signal line 2 and drives to be connected and unload coil 1 and fill a year coil 6 with filling, and fills unloading command to send;
In the present embodiment, as shown in Figure 5, command signal driver element 7 is provided with L, R two signalling channels to the principle of command signal, and is provided with linked switch SB1 and linked switch SB2, and two signalling channels connect unloader signal line 2 respectively and fill a year signal wire 5.When verifying uninstall action performance, linked switch SB1 action, an electric apparatus coil KA1 that continues obtains electric, and unloader signal line 2 sends command signal, and unloading coil 1 obtains electric; When verification fill carry performance time, linked switch SB2 action, an electric apparatus coil KA2 that continues obtains electric, fills to carry a signal wire 5 and send command signal, fill carry coil 6 electric; When linked switch SB1 and linked switch SB2 is failure to actuate, be used for verifying the rest position of two-position three-way electromagnetic iron direction valve, the button of OFF and TA is used for total road and throws with the signal power source of test side, stop.
Pressure generating unit 8 is communicated with the verification corresponding with main oil-in 33 by an oil pipe line and accesses joint 13, the verification access joint 13 that hydraulic fluid port other on valve body 3 is corresponding is also connected with an independently oil pipe line separately, oil pipe line described in every root is all equipped with Output pressure indicating gauge, for the two-position three-way electromagnetic iron direction valve that the present invention verifies, need altogether to connect five independently pipelines by verification access joint 13, five pipelines are respectively to fill and carry loop output pipe 10, fill and carry cut-off loop output pipe 20, verification Output pressure pipeline 22, unloading cut-off loop output pipe 18, relief circuit output pipe 16, these five pipelines are also equipped with respectively fill and carry loop output indicating gauge 9, fill and carry cut-off loop output indicating gauge 21, verification Output pressure indicating gauge 19, unloading cut-off loop exports indicating gauge 17, relief circuit exports indicating gauge 15, pressure generating unit 8 is responsible for providing verification working pressure.
In the present embodiment, in order to can comb convenient, be convenient to connect, this proving installation also comprises pipeline stiff end row 14, and described oil pipe line is erected on pipeline stiff end row 14.
As Fig. 3, shown in 4, the present invention can further describe into, described pressing and locking device 4 comprises pressing plate 41, cap 42 got rid of by pressing plate, regulating wheel 43, adjustment screw rod 44, set nut 45 and propclip 46, described propclip 46 is two pairs of C font clamping plate, two pairs of propclips 46 are separately positioned on the two ends of valve body 43, propclip 46 is got rid of cap 42 by pressing plate 41 and pressing plate and direction valve is matched check block 12 and be pressed on valve body 3, and coordinate fastening by adjustment screw rod 44 with set nut 45, described regulating wheel 43 is arranged on the top of adjustment screw rod 44, the fulcrum of cap 42 as clamping got rid of by pressing plate, by spinning regulating wheel 43 spacing, propclip 46 has certain flexible ability and coordinates the needs realizing clamping.
A kind of two-position three-way electromagnetic iron direction valve performance method for rapidly testing, is carried a mouth by total the filling of the two-position three-way electromagnetic iron direction valve that verifies, fills and carry a cut-off mouth, main oil-in, unloading cut-off mouth and unloading port five hydraulic fluid ports, comprise the following steps:
Step one, before verification respectively with five independently and the oil pipe line that Output pressure indicating gauge is housed is communicated with five hydraulic fluid ports, formed to fill and carry a loop output pipe, fill and carry a cut-off loop output pipe, verification Output pressure pipeline, unloading cut-off loop output pipe, relief circuit output pipe;
Step 2, to verification with Output pressure pipeline build-up pressure to setting, and transmit a signal to unloading coil 1 and/or fill a year coil 6, detect the numerical value of each Output pressure indicating gauge simultaneously, compare to determine the performance of two-position three-way electromagnetic iron direction valve according to this numerical value, complete verifying work.
When verifying, flow process is as shown in Figure 6, in turn verification fill carry, unloading and ring time pressure signal, carry when filling, unloading pressure abnormal signal time to fill slide unloader valve carry out clean after again verify, until verify qualified or announce to scrap.
Be illustrated in figure 7 fill information carrying number normal time each Output pressure indicating gauge view, the filling of two-position three-way electromagnetic iron direction valve carry coil 6 electric rear excitation actuating; Fill year loop output indicating gauge 9 consistent with the pressure shown by verification Output pressure indicating gauge 19, relief circuit exports indicating gauge 15, unloads cut-off loop output indicating gauge 17 and fills year cut-off loop output indicating gauge 21 display and is all 0, this two-position three-way electromagnetic iron direction valve loop switch unit is described, filling a year circuit behavior performance can normally reach;
Be illustrated in figure 8 the view of filling each Output pressure indicating gauge when carrying abnormal signal, year coil 6 that fills of two-position three-way electromagnetic iron direction valve obtains electric rear excitation actuating; Fill and carry loop and export indicating gauge 9 with filling to carry and end loop and export the intercommunication of indicating gauge 21 pressure, show that a year performance of filling for this valve has fault, carry out being adjusted by the carrier unit guiding valve that fills in the two-position three-way electromagnetic iron direction valve of school.
Unloading verification with fill carry similar, when carrying out cut-off verification, the unloading coil 1 of two-position three-way electromagnetic iron direction valve and fill dead electricity while of carrying coil 6; Two-position three-way electromagnetic iron direction valve loop switch unit is in cut-off state, and duty maintains balance; When cutoff performance is normal as shown in Figure 9, unloading cut-off loop exports indicating gauge 17 and fills carries the supply pressure that pressure that cut-off loop exports indicating gauge 21 is verification Output pressure indicating gauge 19, fill carry that loop exports that indicating gauge 9 and relief circuit export indicating gauge 15 be shown as 0; When cutoff performance is abnormal as shown in Figure 10, have to fill and carry loop and export indicating gauge 9 with filling to carry and end loop and exports indicating gauge 21, unloading cut-off loop output indicating gauge 17 and relief circuit export indicating gauge 15 all pressure intercommunications, show the cutoff performance fault of this valve.
Claims (4)
1. a two-position three-way electromagnetic iron direction valve performance device for quick testing, it is characterized in that: comprise pressing and locking device (4), command signal driver element (7), pressure generating unit (8) and direction valve pairing check block (12), described direction valve pairing check block (12) is pressed abd fixed on valve body (3) by pressing and locking device (4), described direction valve pairing check block (12) is provided with the verification be communicated with the hydraulic fluid port one_to_one corresponding of valve body (3) and accesses joint (13); Described command signal driver element (7) and pressure generating unit (8) are arranged on off-line calibration equipment body (11), command signal driver element (7) carries a signal wire (5) respectively by unloader signal line (2) and drives to be connected and unload coil (1) and fill a year coil (6) with filling, and pressure generating unit (8) accesses joint (13) by an oil pipe line connection verification corresponding with main oil-in (33); Verification access joint (13) that the upper other hydraulic fluid port of valve body (3) is corresponding is also connected with an independently oil pipe line separately, the oil pipe line described in every root is all equipped with Output pressure indicating gauge.
2. as right will remove the two-position three-way electromagnetic iron direction valve performance device for quick testing as described in 1, it is characterized in that: this proving installation also comprises pipeline stiff end row (14), described oil pipe line is erected on pipeline stiff end row (14).
3. as right will remove the two-position three-way electromagnetic iron direction valve performance device for quick testing as described in 1 or 2, it is characterized in that: described pressing and locking device (4) comprises pressing plate (41), cap (42) got rid of by pressing plate, regulating wheel (43), adjustment screw rod (44), set nut (45) and propclip (46), described propclip (46) is two pairs of C font clamping plate, two pairs of propclips (46) are separately positioned on the two ends of valve body (43), propclip (46) is got rid of cap (42) by pressing plate (41) and pressing plate and direction valve is matched check block (12) and be pressed on valve body (3), and coordinate fastening by adjustment screw rod (44) with set nut (45), described regulating wheel (43) is arranged on the top of adjustment screw rod (44).
4. a two-position three-way electromagnetic iron direction valve performance method for rapidly testing, is carried a mouth by total the filling of the two-position three-way electromagnetic iron direction valve that verifies, fills and carry a cut-off mouth, main oil-in, unloading cut-off mouth and unloading port five hydraulic fluid ports, it is characterized in that, comprise the following steps:
Step one, before verification respectively with five independently and the oil pipe line that Output pressure indicating gauge is housed is communicated with five hydraulic fluid ports, formed to fill and carry a loop output pipe, fill and carry a cut-off loop output pipe, verification Output pressure pipeline, unloading cut-off loop output pipe, relief circuit output pipe;
Step 2, to verification with Output pressure pipeline build-up pressure to setting, and transmit a signal to unloading coil (1) and/or fill a year coil (6), detect the numerical value of each Output pressure indicating gauge simultaneously, compare to determine the performance of two-position three-way electromagnetic iron direction valve according to this numerical value, complete verifying work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574390.9A CN104634549A (en) | 2013-11-15 | 2013-11-15 | Apparatus and method of quickly testing performance of two-position three-way electromagnet directional valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574390.9A CN104634549A (en) | 2013-11-15 | 2013-11-15 | Apparatus and method of quickly testing performance of two-position three-way electromagnet directional valve |
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| CN104634549A true CN104634549A (en) | 2015-05-20 |
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| CN201310574390.9A Pending CN104634549A (en) | 2013-11-15 | 2013-11-15 | Apparatus and method of quickly testing performance of two-position three-way electromagnet directional valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964850A (en) * | 2020-09-04 | 2020-11-20 | 深圳市宏济医疗技术开发有限公司 | Air pressure leakage detection device of electronic endoscope |
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2013
- 2013-11-15 CN CN201310574390.9A patent/CN104634549A/en active Pending
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|---|
| 中华人民共和国国家经济贸易委员会: "液压电磁换向阀", 《中华人民共和国机械行业标准》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964850A (en) * | 2020-09-04 | 2020-11-20 | 深圳市宏济医疗技术开发有限公司 | Air pressure leakage detection device of electronic endoscope |
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Application publication date: 20150520 |