CN103557990A - All-round verifying device for pressure instrument equipment - Google Patents
All-round verifying device for pressure instrument equipment Download PDFInfo
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Abstract
The invention relates to an all-round verifying device for pressure instrument equipment. The all-round verifying device integrates a verifying device for hydraulic instrument equipment and a verifying device for air pressure instrument equipment in a combined mode so that the all-round verifying device can have the functions of verifying the two kinds of equipment. Control is performed through one same control system, a data processing module is assembled, so that collecting, processing and report generating of verification data are finished, and the device is high in automation degree, flexible in using and suitable for measuring external field pressure and particularly for verifying a pressure instrument of equipment in a guarantee for troops to carry out tasks in an unhindered way.
Description
Technical field
The present invention relates to a kind of instrumentation calibrating installation, be specifically related to the all-round calibrating installation of a kind of manometer equipment.
Background technology
Manometer equipment mainly contains hydraulic pressure and air pressure class, specifically there is general purpose pressure gauge, precision pressure gauge, pressure transducer etc., also more various for examining and determine the device of manometer equipment, mainly can be divided into hydraulic pressure calibrating class and air pressure calibrating class, the Chinese utility model patent that is 201852675U as notification number discloses a kind of calibration device for pressure gauge, comprise fuel tank, pitcher pump, high-pressure system pipeline and low-pressure system pipeline, supercharger, blowdown valve, and two be provided with return line between blowdown valve, it is characterized in that: described supercharger comprises low-pressure area and higher-pressure region, described low-pressure area connects low-pressure system pipeline, described higher-pressure region connects high-pressure system pipeline, described high-pressure system pipeline is provided with standard test weight calibration equipment, and this device can be realized pressurization, measurement range broadens, but this device is mainly the manometer equipment for hydraulic pressure class, and automaticity is on the low side, and the stability of system is also not high enough.The Chinese utility model patent that and for example notification number is 202793688U discloses the tensimeter calibrating installation that a kind of air is made medium, comprise that air compressor machine, gas boosting pump, hand lift pump, pressure relief pipe and some interfaces, wherein, air compressor machine is connected with gas boosting pump by two pipelines, wherein on a pipeline, is provided with successively high-voltage regulator and air compressor machine output pressure and controls stop valve; On gas boosting pump, be connected with outlet pipe, outlet pipe is provided with high-pressure stop valve; Each interface is connected with the outlet pipe of gas boosting pump respectively, and interface is provided with stop valve; Hand lifts on pump and is connected with low pressure line, is provided with successively reversal valve, low-pressure regulator and low-pressure shutoff valve on this pipeline, and each interface is connected with this pipeline respectively; Pressure relief pipe is provided with blowdown valve, each interface is connected with pressure relief pipe respectively, although this device efficient quick is relatively environmental protection also, but be mainly the manometer equipment for air pressure class, oxygen gauge particularly, and its volume ratio is huger and heavy, the volume that general output pressure reaches the air compressor of 6MPa can reach 300mm * 350mm * 300mm, and weight reaches 20kg.
In view of this, need to invent a kind of hydraulic pressure class manometer calibrating that can be used for, can and use the all-round calibrating installation of manometer equipment flexibly for the calibrating of air pressure class manometer equipment again.
Summary of the invention
Problem to be solved by this invention is to provide a kind of hydraulic pressure class manometer calibrating that can be used for, and can and use the all-round calibrating installation of manometer equipment flexibly for the calibrating of air pressure class manometer equipment again.
For addressing the above problem, the technical solution used in the present invention is:
The all-round calibrating installation of a kind of manometer equipment, it comprises integrated stand, the hydraulic-pneumatic being installed on described integrated stand is comprehensive for defeated device, hydraulic pressure standard, test solution pressure pressure Instrument connection device, air pressure standard, gas pressure pressure Instrument connection device and for the data processing module of electrical control, described hydraulic-pneumatic is comprehensive has hydraulic power source and pneumatic supply in defeated device, synchronous described hydraulic pressure standard and the described test solution pressure pressure Instrument connection device of connecting of hydraulic pressure outlet of described hydraulic power source, synchronous described air pressure standard and the described gas pressure pressure Instrument connection device of connecting of air pressure outlet of described pneumatic supply.
As the present invention, further improve, described hydraulic power source is oil hydraulic system, comprise pumping plant and the flowline and the oil returning tube that are communicated with described pumping plant, described hydraulic-pneumatic is comprehensive also comprises that for defeated device the calibrating air pressure of the gas making in described pneumatic supply becomes the oil-gas converter of high pressure conditions from low-pressure state, and described oil-gas converter is connected with flowline and the oil returning tube of described hydraulic power source.
As the present invention, further improve, described oil-gas converter comprises a two-position four-way valve and the conversion cylinder being communicated with described two-position four-way valve, in described conversion cylinder, there is a piston, described piston has Shang Ding and lower top and conversion cylinder is separated into atmospheric pressure cavity, plunger shaft and hydraulic cavities, described two-position four-way valve has P hydraulic fluid port, T hydraulic fluid port, A hydraulic fluid port and B hydraulic fluid port, described P hydraulic fluid port is connected with described flowline, described T hydraulic fluid port and described oil returning tube are connected, described A hydraulic fluid port is connected with described hydraulic cavities by pipeline, described B hydraulic fluid port is connected with described plunger shaft by pipeline, described atmospheric pressure cavity is connected with the air intake duct that retaining valve is housed, described atmospheric pressure cavity is connected with air pressure outlet by the gas off-take of retaining valve is housed.
As the present invention, further improve, the inflow point of described air intake duct is provided with filtrator.
As the present invention, further improve, in described hydraulic power source, be provided with oil pressure supercharging device.
As the present invention, further improve, oil pressure supercharging device comprises the first reversal valve, the second reversal valve, the 3rd reversal valve and pressurized cylinder, the first reversal valve is for often driving reversal valve and in flowline, its outlet is communicated with hydraulic pressure outlet, its import is communicated with the import of the second reversal valve, the second reversal valve is normally closed reversal valve, the outlet of the second reversal valve is communicated with the low pressure end of pressurized cylinder, low pressure end is also communicated with the import of the 3rd reversal valve, the 3rd reversal valve is for often driving reversal valve, the outlet of the 3rd reversal valve is communicated with oil returning tube, the high-pressure side of pressurized cylinder is also communicated with the outlet of the first reversal valve.
As the present invention, further improve, in hydraulic power source, be provided with stability hydraulic regulation device, in pneumatic supply, be provided with stable gas pressure regulation device.
As the present invention, further improve, data processing module has data acquisition sub-module, data scaling sub-module, electrical control sub-module and shows sub-module.
As the present invention, further improve, between integrated stand and hydraulic power source and pneumatic supply, be provided with shock absorbing apparatus.
As to inventing further improvement, in hydraulic power source, the motor of the electric-motor pump of pumping plant is Single-phase Asynchronous Exchange Electric Motor, is provided with forced air cooler and temperature sensor in fuel tank.
Compared with prior art, the beneficial effect that the present invention obtains is:
The present invention relates to the all-round calibrating installation of a kind of manometer equipment, the calibrating installation of the calibrating installation of hydraulic pressure class instrumentation and air pressure class instrumentation is integrated to merging, make it there is the calibrating function of two kind equipments; By same set of control system, control, and fit on data processing module, collection, processing, the report generation of calibrating data can be completed; This system automation degree is high, uses flexibly, is applicable to outfield pressure measurement, the calibrating that especially manometer is equipped in carrying out and ensureing by army, and integrated stand is realized the integrated of two covering devices as mounting base.
Further, in pneumatic supply of the present invention, be provided with oil-gas converter, it can make the gas calibrating air pressure in pneumatic supply become high pressure conditions from low-pressure state, the present invention adopts this low-pressure gas of atmosphere as medium, reduced in prior art in air pressure class manometer equipment calibrating installation such as the equal larger equipment of air compressor equal-volume, weight, thereby overall volume and the weight of apparatus of the present invention have effectively been reduced, and this low-pressure gas can access gases at high pressure of the prior art by oil-gas converter, meet the demand of calibrating.
Further, the inflow point of air intake duct of the present invention is provided with filtrator, can filter air inlet.
Further, the present invention is provided with oil pressure supercharging device, so the present invention can, so that the pumping plant in hydraulic power source adopts the relatively low pumping plant of output oil pressure, effectively realize supercharging and the calibration operation of hydraulic-pneumatic.Both can reduce cost, also can be compared with smaller tremors and other labile factor.
Further, the present invention is provided with stability hydraulic regulation device, can improve accuracy of detection, security that simultaneously also can the calibrating of assurance device high pressure.
Further, the present invention can be provided with shock absorbing apparatus, and this device can improve the stability of calibrating installation of the present invention.
Further, the present invention is provided with Single-phase Asynchronous Exchange Electric Motor, and it can effectively reduce vibrations, can also effectively prevent that tank pressure is with environment temperature ANOMALOUS VARIATIONS simultaneously, equipment is worked under normal oil temperature, when oil temperature surpasses preset temperature, automatically open air cooler fluid is lowered the temperature.
The all-round calibrating installation of manometer equipment provided by the present invention, the ability that air pressure instrument, hydraulic instrument or pressure transducer equal pressure instrumentation and project are carried out to measurement verification, calibration or test.
Whole device volume provided by the present invention, weight are all less, use flexibly, are applicable to the field works such as army's equipment.
Device calibrating scope provided by the present invention is wide, and stability is high, and security is good, compatible strong.
Plant automation degree provided by the present invention is high, convenient operation, record etc.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the embodiment of the present invention 1;
Fig. 2 is the formation framework schematic diagram of the embodiment of the present invention 1;
Fig. 3 is data processing block diagram of the present invention.
In accompanying drawing: 1 integrated stand, 2 hydraulic power sources, 3 pneumatic supplies, 41 hydraulic pressure standards, 42 air pressure standards, 51 test solution pressure pressure Instrument connection devices, 52 gas pressure pressure Instrument connection devices, 6 data processing modules, 21 hydraulic pressure outlets, 31 air pressure outlets, 22 pumping plants, 201 flowlines, 202 oil returning tubes, 7 two-position four-way valves, 8 conversion cylinders, top on 81, 82 times tops, 811 atmospheric pressure cavities, 831 plunger shaft, 821 hydraulic cavities, 71 P hydraulic fluid ports, 72 T hydraulic fluid ports, 73 A hydraulic fluid ports, 74 B hydraulic fluid ports, 83 air intake ducts, 84 gas off-takes, 304 retaining valves, 803 filtrators, 251 first reversal valves, 252 second reversal valves, 253 the 3rd reversal valves, 254 pressurized cylinders, 2541 low pressure ends, 2542 high-pressure sides, 451, stability hydraulic regulation device, 452 stable gas pressure regulation devices, 91 safety valve, 92 liquid reservoirs, 93 throttling valve, 94 proportional pressure control valves.
Embodiment
Below in conjunction with accompanying drawing 1,2 and 3 and specific embodiment the present invention is described in more detail.
Embodiment 1, as shown in Figure 1, 2, and the all-round calibrating installation of a kind of manometer equipment.It has integrated stand 1, is separately installed with hydraulic-pneumatic comprehensive for defeated device, hydraulic pressure standard 41, test solution pressure pressure Instrument connection device 51, air pressure standard 42, gas pressure pressure Instrument connection device 52 with for the data processing module 6 of electrical control on integrated stand 1.Hydraulic-pneumatic is comprehensive has hydraulic power source 2 and pneumatic supply 3 in defeated device, synchronous hydraulic pressure standard 41 and the test solution pressure pressure Instrument connection device 51 of connecting of hydraulic pressure outlet 21 of hydraulic power source 2, synchronous air pressure standard 42 and the gas pressure pressure Instrument connection device 52 of connecting of air pressure outlet 31 of pneumatic supply 3, hydraulic pressure exports 21 gentle extrusion mouthful 31 places and is equipped with a retaining valve 304.Hydraulic power source 2 is oil hydraulic system, comprises pumping plant 22 and the flowline 201 being communicated with pumping plant 22 and oil returning tube 202; Pumping plant 22, can adopt output hydraulic pressure to reach the oil pressure pumping plant of 20MPa, and hydraulic-pneumatic comprehensively also comprises that for defeated device the calibrating air pressure of the gas making in pneumatic supply 3 becomes the oil-gas converter of high pressure conditions from low-pressure state.Oil-gas converter is connected with flowline 201 and the oil returning tube 202 of hydraulic power source 2.Oil-gas converter comprises a two-position four-way valve 7 and the conversion cylinder 8 being communicated with two-position four-way valve 7.In conversion cylinder 8, have a piston, piston has upper top 81 and lower top 82 and conversion cylinder 8 is separated into atmospheric pressure cavity 811, plunger shaft 831 and hydraulic cavities 821.Two-position four-way valve 7 has P hydraulic fluid port 71, T hydraulic fluid port 72, A hydraulic fluid port 73 and B hydraulic fluid port 74.P hydraulic fluid port 71 is communicated with flowline 201, and T hydraulic fluid port 72 and oil returning tube 202 are communicated with, and A hydraulic fluid port 73 is communicated to hydraulic cavities 821 by oil-piping, and B hydraulic fluid port 74 is communicated to plunger shaft 831 by oil-piping.Atmospheric pressure cavity 811 is communicated with air intake duct 83 and gas off-take 84, on air intake duct 83 and gas off-take 84, be equipped with retaining valve 304, the inflow point of air intake duct 83 is provided with filtrator 803, makes pneumatic supply 3 output pressures can reach 6MPa, and corresponding barometric surveying scope is 0MPa～6MPa.
In hydraulic power source 2, be provided with oil pressure supercharging device, oil pressure supercharging device comprises the first reversal valve 251, the second reversal valve 252, the 3rd reversal valve 253 and pressurized cylinder 254.The first reversal valve 251 is for often driving reversal valve and in flowline 201, and its outlet exports 21 with hydraulic pressure and is communicated with, and its import is communicated with the import of the second reversal valve 252.The second reversal valve 252 is normally closed reversal valve, and the outlet of the second reversal valve 252 is communicated with the low pressure end 2541 of pressurized cylinder 254, and low pressure end 2541 is also communicated with the import of the 3rd reversal valve 253.The 3rd reversal valve 253 is for often driving reversal valve, the outlet of the 3rd reversal valve 253 is communicated with oil returning tube 202, the high-pressure side 2542 of pressurized cylinder 254 is also communicated with the outlet of the first reversal valve 251, makes hydraulic power source 2 output hydraulic pressures can reach 60MPa, and corresponding hydraulic measurement scope is 0MPa～60MPa.
In hydraulic power source 2, be provided with stability hydraulic regulation device 451, in pneumatic supply 3, be provided with stable gas pressure regulation device 452, comprise safety valve 91, liquid reservoir 92, throttling valve 93, proportional pressure control valves 94 etc., can design as required and be placed in hydraulic power source 2, pneumatic supply 3.In hydraulic power source 3, the motor of the electric-motor pump of pumping plant 22 is Single-phase Asynchronous Exchange Electric Motor, is provided with forced air cooler and temperature sensor in fuel tank.
Between integrated stand 1 and hydraulic power source 2 and pneumatic supply 3, be provided with shock absorbing apparatus.Data processing module 6 has data acquisition sub-module, data scaling sub-module, electrical control sub-module and shows sub-module.
In operating process, in hydraulic pressure calibrating, original state, the first reversal valve 251 is open-minded, the second reversal valve 252 cuts out, and the 3rd reversal valve 253 is open-minded, and the high-pressure side 2542 that fluid flows directly to pressurized cylinder 254 from flowline 201 through the first reversal valve 251 makes it in idle state.If started, to carry out hydraulic pressure calibration operation, the first reversal valve 251 cuts out, the second reversal valve 252 is open-minded, the 3rd reversal valve 253 cuts out, fluid enters the low pressure end 2541 of pressurized cylinder 254 through the second reversal valve 252 from flowline 201, the original fluid of high-pressure side 2542 is carried out to a supercharging job, then each reversal valve is got back to again original state, fluid flows to oil returning tube 202 through the 3rd reversal valve 253 from the low pressure end 2541 of pressurized cylinder 254, by the time pressurized cylinder 254 is got back to original state, then repeat again a supercharging job, so circulation, can export higher more stable hydraulic pressure, be used for examining and determine hydraulic pressure instrument.And in air pressure calibrating, original state, P hydraulic fluid port 71 and B hydraulic fluid port 74 are connected, T hydraulic fluid port 72 and A hydraulic fluid port 73 are connected, fluid flow into plunger shaft 831 from flowline 201 through two-position four-way valve 7, piston is sunk to hydraulic cavities 821 bottoms makes it in idle state, if started, to carry out air pressure calibration operation, P hydraulic fluid port 71 and A hydraulic fluid port 73 are connected, T hydraulic fluid port 72 and B hydraulic fluid port 74 are connected, fluid flow into hydraulic cavities 821 from flowline 201 through two-position four-way valve 7, fluid in plunger shaft 831 flow back into oil returning tube 202 through two-position four-way valve 7, piston just can rise, meanwhile, the retaining valve 304 of air intake duct 83 is opened, the retaining valve 304 of gas off-take 84 is closed, atmosphere enters atmospheric pressure cavity 811 and after piston compression, becomes gases at high pressure, complete a supercharging job, then the retaining valve 304 on two-position four-way valve 7 and air intake duct 83 and gas off-take 84 switches back original state, now fluid will flow into plunger shaft 831 through two-position four-way valve 7 from flowline 201 again, and fluid in hydraulic cavities 821 flow back into oil returning tube 202 through two-position four-way valve 7, return to original state, again the retaining valve 304 on two-position four-way valve 7 and air intake duct 83 and gas off-take 84 is switched to duty, complete again a supercharging job, so circulation, can export higher more stable air pressure, be used for examining and determine air pressure instrument.
In implementation process, wherein hydraulic power source 2, pneumatic supply 3 is mainly hydraulic pressure instrument, the measurement verification of atmospheric pressure instrument provides required pressure and flow, after pumping plant 22 designs of hydraulic power source 2, has stainless steel fuel tank system, integrated valve block, pipe system, electric-motor pump, high pressure filter, return filter, cooling system, electrical control, electric-motor pump is the power source of system, is also easy vibrative place, it is by mounting base, damper element, motor, bell jar and shaft coupling, the compositions such as hydraulic pump, motor is Single-phase Asynchronous Exchange Electric Motor, in order to reduce vibrations, under the connection scheme and mounting base of motor and pump, on the oil inlet and outlet pipeline of pump, all need to consider shock-absorbing, select ram pump, high output pressure can reach 70MPa, the plunger case that this kind of ram pump joined formula star-arrangement by valve forms, by the parallel connection configuration of 6 organ timbering plug cylinders nearly, can realize larger flow exports, generally driving is to be undertaken by a motor being connected with pump with shaft coupling by flange, and fuel tank is by stainless steel casing, oil absorption filter, liquid level gauge, thermometer, oil drain hole, return filter, the compositions such as ventilation filtrator, are all-sealed structure form, and casing adopts stainless steel material to guarantee the unlikely generation corrosion of long-term use and polluted fluid, in order to guarantee that hydraulic pump sucks the cleanliness of fluid, extend the serviceable life of pump, oil absorption filter and return filter have been installed on fuel tank, can remove assembling like this, maintenance, wearing and tearing or the fifth wheel entering from oil return opening, thereby hydraulic pump is protected, and on fuel tank setting pressure switch, after filter core stops up, there is warning function, can be in time renew cartridge more, for the ease of understanding level condition in fuel tank, an end face at fuel tank has been installed liquid level gauge, can measure oily temperature simultaneously, in fuel tank bottom, arrange and drain the oil interface and clean interface, be convenient to clean fuel tank and hydraulic oil is carried out to wash cycles, in order to prevent that tank pressure is with environment temperature ANOMALOUS VARIATIONS, the pollutant such as dust in the isolated external world, at top of oil-tank, be provided with the ventilation filtrator that filtering accuracy is 10u, can doublely do oiling interface uses simultaneously.Installing forced air cooler and temperature sensor additional, is that equipment is worked under normal oil temperature, when oil temperature surpasses preset temperature, is automatically to open air cooler fluid is lowered the temperature.Electrical control mainly realizes the start and stop of electric-motor pump, and various warning and Presentation Function, band digital display and simulation output in real time.
This calibrating installation reasonable in design, power transmission and load are reasonable, have enough intensity, rigidity and fatigue resistance, applicable field calibration operation; Test pressure can reach 70MPa, and output pressure can step-less adjustment, and rate of pressure rise can be set; Adopt jumbo oil pressure-air pressure conversion equipment, make in equipment, without high-pressure air source equipment, to make full use of oil sources pumping plant, the calibrating that can meet the air pressure instrument of 0MPa～6MPa requires and the calibrating requirement of the hydraulic instrument of 0MPa～60MPa.System Working Principle: pressure calibration adopts relative method, the electrical control sub-module of data processing module 6 drives hydraulic power source 2, produce required hydraulic pressure or atmospheric pressure, synchronously export to tested manometer connector and pressure standard meter, tested manometer is put into tested manometer connector, can realize detection, tested manometer connector comprises test solution pressure pressure Instrument connection device 51 and gas pressure pressure Instrument connection device 52, pressure standard meter comprises hydraulic pressure standard 41 and air pressure standard 42, the measurement data of pressure standard meter and tested manometer is processed and is fed back after data processing module 6, make the system pressure of pressure standard meter test be stabilized in setting value, now, measurement data to pressure standard meter and data processing module 6 records and data processing, and judge that according to default vertification regulation whether tested table is qualified, output measurement verification result.
The above embodiment is only the preferred embodiments of the present invention, and is not the exhaustive of the feasible enforcement of the present invention.For persons skilled in the art, any apparent change of under the prerequisite that does not deviate from the principle of the invention and spirit, it having been done, within all should being contemplated as falling with claim protection domain of the present invention.
Claims (10)
1. the all-round calibrating installation of a manometer equipment, it is characterized in that: it comprises integrated stand (1), the hydraulic-pneumatic being installed on described integrated stand (1) is comprehensive for defeated device, hydraulic pressure standard (41), test solution pressure pressure Instrument connection device (51), air pressure standard (42), gas pressure pressure Instrument connection device (52) and for the data processing module (6) of electrical control, described hydraulic-pneumatic is comprehensive has hydraulic power source (2) and pneumatic supply (3) in defeated device, the hydraulic pressure outlet (21) of described hydraulic power source (2) is synchronously connected with described hydraulic pressure standard (41) and described test solution pressure pressure Instrument connection device (51) by pipeline, the air pressure outlet (31) of described pneumatic supply (3) is synchronously connected with described air pressure standard (42) and described gas pressure pressure Instrument connection device (52) by pipeline.
2. the all-round calibrating installation of a kind of manometer equipment according to claim 1, it is characterized in that: described hydraulic power source (2) is oil hydraulic system, comprise pumping plant (22) and the flowline (201) being communicated with described pumping plant (22) and oil returning tube (202), described hydraulic-pneumatic is comprehensive also to be comprised and makes the calibrating air pressure of the gas in described pneumatic supply (3) from low-pressure state, become the oil-gas converter of high pressure conditions for defeated device, and described oil-gas converter is connected with flowline (201) and the oil returning tube (202) of described hydraulic power source (2).
3. the all-round calibrating installation of a kind of manometer equipment according to claim 2, it is characterized in that: described oil-gas converter comprises a two-position four-way valve (7) and the conversion cylinder (8) being communicated with described two-position four-way valve (7), in described conversion cylinder (8), there is a piston, described piston has upper top (81) He Xiading (82) and conversion cylinder (8) is separated into atmospheric pressure cavity (811), plunger shaft (831) and hydraulic cavities (821), described two-position four-way valve (7) has P hydraulic fluid port (71), T hydraulic fluid port (72), A hydraulic fluid port (73) and B hydraulic fluid port (74), described P hydraulic fluid port (71) is connected with described flowline (201), described T hydraulic fluid port (72) and described oil returning tube (202) are connected, described A hydraulic fluid port (73) is connected with described hydraulic cavities (821) by pipeline, described B hydraulic fluid port (74) is connected with described plunger shaft (831) by pipeline, described atmospheric pressure cavity (811) is connected with the air intake duct (83) that retaining valve (304) are housed, described atmospheric pressure cavity (811) is connected with air pressure outlet (3) by the gas off-take (84) of retaining valve (304) is housed.
4. the all-round calibrating installation of a kind of manometer equipment according to claim 3, is characterized in that: the inflow point of described air intake duct (83) is provided with filtrator (803).
5. according to the all-round calibrating installation of a kind of manometer equipment described in claim 2-4 any one, it is characterized in that: described hydraulic power source is provided with oil pressure supercharging device in (2).
6. the all-round calibrating installation of a kind of manometer equipment according to claim 5, it is characterized in that: described oil pressure supercharging device comprises the first reversal valve (251), the second reversal valve (252), the 3rd reversal valve (253) and pressurized cylinder (254), described the first reversal valve (251) is for often driving reversal valve and in flowline (201), its outlet is communicated with hydraulic pressure outlet (21), its import is communicated with the import of the second reversal valve (252), the second reversal valve (252) is normally closed reversal valve, the outlet of the second reversal valve (252) is communicated with the low pressure end (2541) of described pressurized cylinder (254), described low pressure end (2541) is also communicated with the import of described the 3rd reversal valve (253), described the 3rd reversal valve (253) is for often driving reversal valve, the outlet of described the 3rd reversal valve (253) is communicated with oil returning tube (202), the high-pressure side (2542) of described pressurized cylinder (254) is also communicated with the outlet of described the first reversal valve (251).
7. the all-round calibrating installation of a kind of manometer equipment according to claim 1, is characterized in that: in described hydraulic power source (2), be provided with stability hydraulic regulation device (451), be provided with stable gas pressure regulation device (452) in described pneumatic supply (3).
8. the all-round calibrating installation of a kind of manometer equipment according to claim 1, is characterized in that: described data processing module (6) has data acquisition sub-module, data scaling sub-module, electrical control sub-module and shows sub-module.
9. according to the all-round calibrating installation of a kind of manometer equipment described in claim 1-4 any one, it is characterized in that: between described integrated stand (1) and described hydraulic power source (2) and pneumatic supply (3), be provided with shock absorbing apparatus.
10. according to the all-round calibrating installation of a kind of manometer equipment described in claim 2-4 any one, it is characterized in that: in described hydraulic power source (3), the motor of the electric-motor pump of pumping plant (22) is Single-phase Asynchronous Exchange Electric Motor, is provided with forced air cooler and temperature sensor in fuel tank.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107860505A (en) * | 2017-10-11 | 2018-03-30 | 马鞍山合力仪表有限责任公司 | A kind of all-round calibrating installation of manometer equipment |
| CN109374201A (en) * | 2018-11-07 | 2019-02-22 | 中国航空工业集团公司西安飞机设计研究所 | Multi-functional pressure calibrating installation |
| CN111947832A (en) * | 2020-08-11 | 2020-11-17 | 董伟 | Internet-based pressure gauge detection system |
| CN113029435A (en) * | 2021-04-13 | 2021-06-25 | 艾克丝科技(北京)有限公司 | Pneumatic special stable servo pressure equipment |
| CN114705360A (en) * | 2022-06-07 | 2022-07-05 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel stabilization section pressure sensor field detection device |
| CN116202685A (en) * | 2023-05-06 | 2023-06-02 | 苏州新意达仪器科技有限公司 | Efficient circulating type high-pressure hydraulic meter calibration detection device and working method |
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| CN1595088A (en) * | 2003-07-21 | 2005-03-16 | 陕西帅克传感仪器制造有限公司 | Full-automatic accurate pressure testing control instrument |
| CN2655214Y (en) * | 2003-10-30 | 2004-11-10 | 江苏红光仪表厂 | Automatic checking device for pressure meter |
| CN201170748Y (en) * | 2007-02-06 | 2008-12-24 | 刘承荣 | Multifunctional pressure vacuum checkout device |
| CN202614465U (en) * | 2012-06-19 | 2012-12-19 | 杭州石林自动化工程有限公司 | Full automatic pressure checking table of high hydrostatic pressure differential pressure transmitter |
| CN103234696A (en) * | 2013-04-26 | 2013-08-07 | 南京化工职业技术学院 | Differential pressure transmitter checking instrument |
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| CN109374201A (en) * | 2018-11-07 | 2019-02-22 | 中国航空工业集团公司西安飞机设计研究所 | Multi-functional pressure calibrating installation |
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| CN113029435A (en) * | 2021-04-13 | 2021-06-25 | 艾克丝科技(北京)有限公司 | Pneumatic special stable servo pressure equipment |
| CN114705360A (en) * | 2022-06-07 | 2022-07-05 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel stabilization section pressure sensor field detection device |
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