CN2121687U - Portable testing device for super-high pressure - Google Patents
Portable testing device for super-high pressure Download PDFInfo
- Publication number
- CN2121687U CN2121687U CN 92224049 CN92224049U CN2121687U CN 2121687 U CN2121687 U CN 2121687U CN 92224049 CN92224049 CN 92224049 CN 92224049 U CN92224049 U CN 92224049U CN 2121687 U CN2121687 U CN 2121687U
- Authority
- CN
- China
- Prior art keywords
- pressure
- high pressure
- super
- ultra
- uhv
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The utility model provides a portable testing device for super-high pressure, which is a standard batching device used for approving super-high pressure measuring system and of which the highest measuring pressure can reach more than 1000 MPa. The portable testing device for super-high pressure comprises a casing, an oil cylinder, a super-high pressure pressurizer, a pipeline system, an oil pump and a display device for measuring value. The oil cylinder, the super-high pressure pressurizer, the pipeline system and the oil pump are installed in the casing. The portable testing device for super-high pressure lightens the volume and the weight of the whole device by adopting a metal piezoresistance sensor instead of counterweights and a pressure reduction system so as to realize the purposes of portability and continuously adjustable measurement value.
Description
The utility model proposes a kind of portable UHV (ultra-high voltage) pressure calibration machine, is a kind of STANDARD MEASURING APPARATUS FOR that is used to check and approve the UHV (ultra-high voltage) pressure-measuring system.The pressure measurement oil cylinder, UHV (ultra-high voltage) pressure making device, pipe system, the oil pump that comprise a cabinet and interior dress, and measured value display device.
The highest measurement pressure of the UHV (ultra-high voltage) measuring system of the utility model indication can reach more than the 1000MPa.In the prior art, the UHV (ultra-high voltage) that is used to calibrate such high pressure is demarcated machine, generally adopt counterweight detect with display system in fluid pressure.Therefore except above-mentioned basic comprising, also comprise a series of counterweight and drive unit thereof.Between pressure measurement oil cylinder and pressure making device, also must insert a cover depressurized system,, be used for promoting the counterweight that is loaded so that pressure that will be very high reduces.Its oil pump generally need adopt motor-driven oil pump.
It generally is to use in the laboratory that existing UHV (ultra-high voltage) is demarcated machine.Its basic functional principle is that elder generation will fill with hydraulic oil in pressure measurement oil cylinder, depressurized system and the pressure making device by oil pump, uses the low-pressure piston that is promoted pressure making device by oil pump again, stresses on the high pressure piston that is attached thereto and forms high pressure.Tested pressure-measuring system is connected to high-pressure side.The high pressure that pressure making device produces records the actual pressure of this moment in the higher-pressure region by increase and decrease counterweight on this piston, and examines and determine tested pressure system with this through the piston in the depressurized system decompression back promotion pressure measurement oil cylinder.
For example, 45000 type ultra-high pressure piston type pressure gauges of French DH company production and selling come to this and constitute and work.
The problem that prior art exists is: the weight measurement method causes the complex structure, bulky, heavy of system, is not suitable for using under the field condition.Its measurement range can't realize step-less adjustment in addition.
The purpose of this utility model provide a kind of its measured value can be in 0～1000MPa scope the portable UHV (ultra-high voltage) pressure calibration machine of step-less adjustment.
The utility model is realized above-mentioned purpose by adopting a kind of metal piezoresistance sensor replacement counterweight and depressurized system.
A kind of portable UHV (ultra-high voltage) pressure calibration machine comprises pressure measurement oil cylinder, UHV (ultra-high voltage) pressure making device, oil pump, the high-low pressure pipe system of a cabinet and interior dress, and pressure detection and display device constitute.Feature of the present utility model is: said oil pump is manual filling pump; Said pressure-detecting device is a metal piezoresistance sensor that directly is installed on above the pressure measurement oil cylinder, and it utilizes the thrust coefficient of metallic resistance rate to make; Said display device is the digital pressure display instrument; High pressure also is installed between pressure measurement oil cylinder and UHV (ultra-high voltage) pressure making device keeps valve.
The operating process of the utility model UHV (ultra-high voltage) pressure calibration machine is: with the hydraulic oil in the hand oil pump absorption lubricating cup, fill with the high pressure cylinder of measuring oil cylinder, pressure duct and UHV (ultra-high voltage) pressure making device earlier; To the oiling of UHV (ultra-high voltage) pressure making device low pressure (LP) cylinder, produce the high pressure of the highest 1000MPa of surpassing at high pressure cylinder then.This high pressure also acts on the interior tinsel of metal piezoresistance sensor simultaneously; As everyone knows, the resistivity of metallic conductor will increase along with the rising that applies pressure thereon.In the utility model, the control circuit that this resistance variations wiry is shown in the device detects, and is transformed into value corresponding and shows.At this moment close said high pressure and keep valve, can make in a period of time of pressure of system to keep constant, so that operator's reading.
The utility model UHV (ultra-high voltage) pressure calibration machine is after the calibration of laboratory, and measuring accuracy can reach more than 0.2%, and stability is preferably arranged.Can be used for to some in the open air (for example weapon test range) calibration device for pressure measurement demarcate.
Compare with prior art, the utility model UHV (ultra-high voltage) pressure calibration machine has replaced complicated, heavy counterweight system and decompression and drive unit with the stress metal electric resistance sensor; Replaced complicated motor-driven oil pump with the light tube that simply manually draws, thereby made the smaller volume of system, weight reduces greatly.Total system can be packed in the portable suitcase, therefore be particularly suitable for open-air the use.
The utility model comprises 4 width of cloth accompanying drawings.Wherein
Fig. 1 is the side sectional view of the utility model UHV (ultra-high voltage) pressure calibration machine.
Fig. 2 is the vertical view of Fig. 1, is used for showing the installation site of each parts in cabinet.
Fig. 3 is the utility model UHV (ultra-high voltage) pressure calibration machine principle schematic, is used to illustrate its principle of operation.
Below contrast the label of accompanying drawing, and be illustrated in more detail in conjunction with an embodiment.
According to technical requirement of the present utility model, this demarcation machine is to implement easily.
As shown in Figure 1, the portable UHV (ultra-high voltage) pressure calibration of the utility model machine comprises a cabinet 12.The cabinet internal fixation hand oil pump 2, lubricating cup 3, high pressure valve 1, low pressure valve 4,5 and 6, UHV (ultra-high voltage) pressure making device 7, high pressure maintenance valve 8, is measured oil pocket 9 and pipe system.On horizontal panel, be provided with the outlet 9 of measuring oil pocket, be used for connecting with tested pressure-measuring system; The oil filler 31 of lubricating cup 3, the handle 11 of high pressure valve 1, low pressure valve 4,5 and 6 handle 41,51 and 61.
Can be seen that by Fig. 2 said piezoresistive transducer 10 is installed in a side of pressure measurement oil pocket 9, its lead-in wire is drawn by the socket 13 that is contained on cabinet 12 sides.The side of cabinet is provided with the handle 21 of hand oil pump 2 and the handle 81 of high pressure valve 8.
Former reason Fig. 3 of the present utility model is illustrated.The lower right of Fig. 3 is low pressure line and high and low pressure valve (1,4,5 and 6).The said hand oil pump of label 2 expressions; In fact it can simply draw tube to being exactly one.Label 3 is oil-storing cups.Label 9 expression pressure measurement oil pockets, it keeps valve 8 to communicate with the high pressure cylinder of UHV (ultra-high voltage) pressure making device 7 by high pressure.Label 10 expression piezoresistance sensors.Its output is by numeric display unit 14 conversions and demonstration.
When using demarcation machine of the present utility model that the UHV (ultra-high voltage) pressure measuring system is calibrated, system under test (SUT) is connected on the pressure measurement oil pocket 9.Open low pressure valve 4 during operation earlier, close high pressure valve 1 and low pressure valve 5.The handle 21 of rotation manual oil pump 2 moves oil pump piston backward, extracts hydraulic oil in lubricating cup 3.Then open high pressure valve 1, high pressure maintenance valve 8 and low pressure valve 6, close low pressure valve 5 simultaneously, shake oil pump piston forward, hydraulic oil is pushed pressure duct, and the pressure making device piston is pushed into lower dead center.Close high pressure valve 1 and low pressure valve 6 then, open low pressure valve 5, oil pump 2 pistons continue to shake forward, hydraulic oil are pushed to the low-pressure piston cylinder of pressure making device 7.At this moment low-pressure piston promotes high pressure piston, produces high pressure in high pressure cylinder.At one preferably among the embodiment, the area of pressure making device low-pressure piston and high pressure piston is than being 1:25.When hand oil pump applies the pressure of 40MPa for pressure making device 7 low pressure (LP) cylinders, can produce the high pressure of 40 * 25=1000MPa at high pressure cylinder.
When pressure reaches setting, close high pressure and keep valve 8, can reduce the leakage of high pressure, make the pressure in the pressure measurement oil pocket 9 keep a period of time, form metastable demonstration output.
Claims (1)
1, a kind of portable UHV (ultra-high voltage) pressure calibration machine, the pressure measurement oil pocket 9, UHV (ultra-high voltage) pressure making device 7, oil pump 2, high-low pressure valve (1,4,5 and 6) and the pipe system that comprise a cabinet 12 and interior dress, and pressure detection and display device formation, feature of the present utility model is: said oil pump is manual filling pump 2; Said pressure-detecting device is a metal piezoresistance sensor 10 that directly is installed on the pressure measurement oil pocket, utilizes the thrust coefficient of metallic resistance rate to make, and said display device is a digital pressure display instrument 14; High pressure also is installed between pressure measurement oil pocket and UHV (ultra-high voltage) pressure making device keeps valve 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92224049 CN2121687U (en) | 1992-06-10 | 1992-06-10 | Portable testing device for super-high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92224049 CN2121687U (en) | 1992-06-10 | 1992-06-10 | Portable testing device for super-high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2121687U true CN2121687U (en) | 1992-11-11 |
Family
ID=4966604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92224049 Granted CN2121687U (en) | 1992-06-10 | 1992-06-10 | Portable testing device for super-high pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2121687U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726391B (en) * | 2009-11-09 | 2011-04-06 | 中国南方航空工业(集团)有限公司 | Torque sensor calibration equipment |
| CN102818673A (en) * | 2012-05-05 | 2012-12-12 | 上海市计量测试技术研究院 | High-accuracy static extra high pressure sensor and pressure measurement method |
| CN103376186A (en) * | 2012-04-16 | 2013-10-30 | 昆山市创新科技检测仪器有限公司 | Planar suspension bearing |
| CN103376187A (en) * | 2012-04-16 | 2013-10-30 | 昆山市创新科技检测仪器有限公司 | High-precision load deformation automatic compensation device |
-
1992
- 1992-06-10 CN CN 92224049 patent/CN2121687U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726391B (en) * | 2009-11-09 | 2011-04-06 | 中国南方航空工业(集团)有限公司 | Torque sensor calibration equipment |
| CN103376186A (en) * | 2012-04-16 | 2013-10-30 | 昆山市创新科技检测仪器有限公司 | Planar suspension bearing |
| CN103376187A (en) * | 2012-04-16 | 2013-10-30 | 昆山市创新科技检测仪器有限公司 | High-precision load deformation automatic compensation device |
| CN103376187B (en) * | 2012-04-16 | 2015-06-10 | 昆山市创新科技检测仪器有限公司 | High-precision load deformation automatic compensation device |
| CN102818673A (en) * | 2012-05-05 | 2012-12-12 | 上海市计量测试技术研究院 | High-accuracy static extra high pressure sensor and pressure measurement method |
| CN102818673B (en) * | 2012-05-05 | 2014-12-10 | 上海市计量测试技术研究院 | High-accuracy static extra high pressure sensor and pressure measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4206634A (en) | Test apparatus and method for an engine mounted fuel pump | |
| CN201133859Y (en) | 2MN microcomputer controlled electrohydraulic servo-force standard machine | |
| US7056097B2 (en) | System and method for monitoring the mechanical condition of a reciprocating compressor | |
| WO2020168512A1 (en) | Oil pressure monitoring device and method for diaphragm compressor cylinder | |
| CN205956117U (en) | Let out leakage quantity measuring device in arbitrary stroke position of pneumatic cylinder is small | |
| CN107575437A (en) | A kind of aerospace hydraulic pump and fluid pressure line performance test experiment table | |
| CN100439891C (en) | Detection method and dedicated equipment for pressure difference measuring device | |
| CN109973354B (en) | Device and method for monitoring air pressure in non-invasive cylinder of reciprocating compressor | |
| CN101556199A (en) | Original position metering and calibrating device for pressure gauge | |
| CN2121687U (en) | Portable testing device for super-high pressure | |
| CN208334311U (en) | Well for storage detects all-around test stand | |
| CN2572356Y (en) | High-pressure oil and water meter | |
| CN2525499Y (en) | Pressure measurer | |
| CN201819763U (en) | Electric ultrahigh pressure piston type pressure gauge | |
| CN114320827B (en) | Nondestructive monitoring device and method for indicator diagram of liquid-driven piston compressor | |
| CN206695875U (en) | A kind of apparatus for calibrating water meter | |
| CN214149688U (en) | Simple and easy calibration device of high accuracy force sensor | |
| CN1595088A (en) | Full-automatic accurate pressure testing control instrument | |
| CN113916675A (en) | Automatic staircase handrail area lip intensity testing arrangement | |
| CN111579377B (en) | Dynamic and static triaxial test device capable of eliminating influence of membrane embedding effect | |
| CN110907077B (en) | Small motor dynamometer | |
| CN104314561B (en) | A kind of boring elastic modulus instrument with flexible loading plate | |
| CN2507009Y (en) | Automatic check pressure test machine | |
| CN208763871U (en) | Oil fuel pump performance Detecting data | |
| CN2606349Y (en) | Pressure differential mercury instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |