CN204008001U - A kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer - Google Patents
A kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer Download PDFInfo
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- CN204008001U CN204008001U CN201420388055.XU CN201420388055U CN204008001U CN 204008001 U CN204008001 U CN 204008001U CN 201420388055 U CN201420388055 U CN 201420388055U CN 204008001 U CN204008001 U CN 204008001U
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- pressure
- uhv
- ultra
- high voltage
- hyperpressure
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer, belongs to measurement instrument field.The utility model comprises UHV (ultra-high voltage) piston manometer, the accurate voltage multiplier of UHV (ultra-high voltage) piston manometer is connected with compensation voltage multiplier by ultrahigh pressure pipeline, compensation voltage multiplier connects by branch line one tunnel low pressure hand increasing pressure pump, another road hydraulic pump, described ultrahigh pressure pipeline is provided with sensor hyperpressure output terminal and chronograph watch hyperpressure output terminal.The utility model is by having increased a pressure multipier at UHV (ultra-high voltage) pressure output end, the pressure of hyperpressure output terminal regulates and is realized by the hand increasing pressure pump of low pressure end, degree of regulation is high, generally can accomplish the volume change of the every 20ml of 20 circle, and pressure changes can reach the every circle of 2MPa.The pipeline that hand increasing pressure pump connects is the low pressure line of piston manometer, and this parts selection scope is wide, and operation resistance is little, has stopped the danger operating in hyperpressure situation.
Description
technical field
The utility model relates to a kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer, belongs to measurement instrument field.
background technology
Piston manometer is to utilize hydrostatic balance (fluid pressure and its strategy of loading that act on piston effective area balance each other) principle to carry out tonometric measurement standard.Piston gage is generally comprised of piston system, specific weight, checker.The uppe r limit of measurement range of conventional piston manometer is at 500MPa, and technology is comparatively ripe.And for measurement range the UHV (ultra-high voltage) piston manometer more than 500MPa, domestic still in conceptual phase.The output pressure of general UHV (ultra-high voltage) piston manometer regulates with equalized pressure and regulates and directly adopt hyperpressure valve, as the positive and negative stroke piston formula of Chinese patent (CN 2226762Y) a kind of 1000MPa pressure gauge, by electrodynamic pump, valve, measuring head and high-voltage oil cavity, voltage multiplier, lubricating cup, formed, it is characterized in that, measuring head is provided with between the low pressure oil pocket of position-limited rack, voltage multiplier and lubricating cup decompression orifice valve is housed.This patent has realized the positive and negative stroke adjustment of 1000MPa piston manometer, but also exists a lot of not enough:
1. the adjusting of hyperpressure output and balance can only regulate by a hyperpressure valve, and the amplitude of accommodation is unstable, needs to rely on a large amount of experience of operation to carry out adjustment, and operating process is not easy to grasp, and Practical Performance is poor.
2. directly at hyperpressure output terminal, Super high pressure valve is set, because the pressure of hyperpressure output terminal is up to 1000MPa, when regulating, resistance huge (being difficult to turn when generally hand increasing pressure pump is to 100MPa) when Super high pressure valve turns, high especially to the material requirements of Super high pressure valve, if the strength of materials is not enough, easily cause screw thread to be threaded off, cause the accident.
3. voltage multiplier does not install the rotation that electric rotating machine drives piston rod additional, if there is mismachining tolerance in the piston rod in piston, can cause producing friction with piston cylinder in sliding process because immense pressure causes deformation to a certain degree in piston cylinder, greatly reduce the degree of accuracy of piston.
The purpose of this utility model is to provide a kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer, realizes the output pressure fine adjustment of UHV (ultra-high voltage) piston manometer.
summary of the invention
The purpose of this utility model is to provide a kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer, realize the output pressure fine adjustment of UHV (ultra-high voltage) piston manometer, the Output pressure that solves common UHV (ultra-high voltage) piston manometer regulates that difficulty is large, precision is low, has the problem of higher operational danger.
The utility model comprises UHV (ultra-high voltage) piston manometer, the accurate voltage multiplier of UHV (ultra-high voltage) piston manometer is connected with compensation voltage multiplier by ultrahigh pressure pipeline, compensation voltage multiplier connects by branch line one tunnel low pressure hand increasing pressure pump, another road hydraulic pump, described ultrahigh pressure pipeline is provided with sensor hyperpressure output terminal and chronograph watch hyperpressure output terminal.
Further: the pipeline of connecting fluid press pump is provided with low pressure valve.
Further: on ultrahigh pressure pipeline, to be also provided with Super high pressure valve.
Advantage of the present utility model:
1) by increased a pressure multipier at UHV (ultra-high voltage) pressure output end, the pressure of hyperpressure output terminal regulates and is realized by the hand increasing pressure pump of low pressure end, degree of regulation is high, generally can accomplish the volume change of the every 20ml of 20 circle, pressure changes can reach the every circle of 2MPa (concrete pressure difference distinguishing to some extent according to actual pipeline and equipment).
2) pipeline that hand increasing pressure pump connects is the low pressure line of piston manometer, and this parts selection scope is wide, and operation resistance is little, has stopped the danger operating in hyperpressure situation.
3) voltage multiplier and piston end have increased the electric rotating machine that drives rotation, and piston rod is operated under rotation status always, greatly reduce the friction force causing because of piston rod mismachining tolerance, thereby have improved precision.
accompanying drawing explanation:
Fig. 1 is the utility model structural representation.
embodiment:
The utility model comprises: counterweight loading end 1, counterweight loading end piston motor 2, counterweight loading end piston 3, low pressure line 4, accurate voltage multiplier electric rotating machine 5, accurate voltage multiplier 6, ultrahigh pressure pipeline 7, sensor hyperpressure output terminal 8, chronograph watch hyperpressure output terminal 9, Super high pressure valve 10, compensation voltage multiplier 11, low pressure hand increasing pressure pump 12, low pressure threeway 13, low pressure valve 14, hydraulic pump 15, described counterweight loading end 1 fixes and is connected with counterweight loading end piston 3, counterweight loading end piston 3 is provided with counterweight loading end piston motor 2, the other end of counterweight loading end piston 3 communicates with accurate voltage multiplier 6 by low pressure line 4, accurate voltage multiplier 6 is provided with accurate voltage multiplier electric rotating machine 5, and the UHV (ultra-high voltage) output terminal of accurate voltage multiplier 6 is by ultrahigh pressure pipeline 7 and sensor hyperpressure output terminal 8, chronograph watch hyperpressure output terminal 9, Super high pressure valve 10 is connected, and Super high pressure valve 10 other ends are provided with compensation voltage multiplier 11, the low pressure end of compensation voltage multiplier 11 by low pressure threeway 13 respectively with low pressure hand increasing pressure pump 12, hydraulic pump 15 is connected, and hydraulic pump 15 ends shutoff by low pressure valve 14.
Sensor hyperpressure output terminal 8 and chronograph watch hyperpressure output terminal 9 have increased a compensation voltage multiplier 11, and its multiple proportion coefficient is identical with accurate voltage multiplier 6, but precision is lower than accurate voltage multiplier 6.Its output pressure can reach the high output pressure of accurate voltage multiplier 6.Low pressure hand increasing pressure pump 12 is connected with compensation voltage multiplier 11 by low pressure threeway 13, by the manual low pressure fine adjustment of low pressure hand increasing pressure pump 12.
Counterweight loading end piston motor 2 is meshed by gear with the piston rod of counterweight loading end piston 3, during work, counterweight loading end piston motor 2 rotation that remains a constant speed, drives the piston rod of counterweight loading end piston 3 to do together rotation at the uniform velocity, and rotating speed is 30r/min-60r/min.
Accurate voltage multiplier electric rotating machine 5 is meshed by gear with the piston rod of accurate voltage multiplier 6, and during work, the rotation that remains a constant speed of accurate voltage multiplier electric rotating machine 5, drives the piston rod of accurate voltage multiplier 6 to do together rotation at the uniform velocity, and rotating speed is 30r/min-60r/min.
Between low pressure threeway 13 and hydraulic pump 15, increased a low pressure valve 14, in practicality after the fine adjustment of low pressure hand increasing pressure pump 12, may reduce the pressure error that hydraulic pump 15 causes by turn-offing low pressure valve 14.
Describe the course of work in detail: before carrying out hyperpressure calibration operation, at sensor hyperpressure output terminal 8 and chronograph watch hyperpressure output terminal 9 ends, corresponding hyperpressure sensor and precision pressure gauge are installed.First deairing step oil-filled is realized in pressure pipeline inside, after completing, at counterweight loading end 1, install counterweight additional, to needed spot pressure A
o, the piston rod of accurate voltage multiplier 6 marches to high-voltage output end completely.Open hydraulic pump 15, low pressure valve 14 and Super high pressure valve 10, compensation voltage multiplier 11 starts to realize pressure and amplifies, and at high-pressure side, produces hyperpressure output, regulates the Output pressure A of compensation voltage multiplier 11 by low pressure hand increasing pressure pump 12
o', make it and A
oapproach, until the piston rod of accurate voltage multiplier 6 moves to equilibrium position.Now, the pressure equilibrium at two ends, still, higher than the spot pressure of required calibration, by adjusting counterweight and the fine setting low pressure hand increasing pressure pump 12 of counterweight loading end 1 end, finally realizes the pressure equilibrium at two ends.Close Super high pressure valve 10, break off compensating the error that voltage multiplier 11 may cause, start the calibration to hyperpressure sensor or precision pressure gauge spot pressure.
During change base measuring pressure point, open Super high pressure valve 10 and low pressure valve 14, start hydraulic pump 15 pressurisings or open bleeding off pressure of hydraulic pump 15 and adjust end step-down, while approaching the spot pressure that need to regulate, close low pressure valve 14.Counterweight on increase and decrease counterweight loading end 1, and finely tune low pressure hand increasing pressure pump 12, until the piston rod of accurate voltage multiplier 6 reaches balance, can start the calibration to hyperpressure sensor or precision pressure gauge spot pressure.
Claims (3)
1. the pressure device for precision regulating for UHV (ultra-high voltage) piston manometer, comprise UHV (ultra-high voltage) piston manometer, it is characterized in that, the accurate voltage multiplier (6) of UHV (ultra-high voltage) piston manometer is connected with compensation voltage multiplier (11) by ultrahigh pressure pipeline (7), compensation voltage multiplier (11) is connected with low pressure hand increasing pressure pump (12) by branch line one tunnel, another road is connected with hydraulic pump (15), and described ultrahigh pressure pipeline (7) is provided with sensor hyperpressure output terminal (8) and chronograph watch hyperpressure output terminal (9).
2. a kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer according to claim 1, is characterized in that, on the pipeline connecting, is provided with low pressure valve (14) at hydraulic pump (15).
3. a kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer according to claim 2, is characterized in that, is also provided with Super high pressure valve (10) on ultrahigh pressure pipeline (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388055.XU CN204008001U (en) | 2014-07-15 | 2014-07-15 | A kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388055.XU CN204008001U (en) | 2014-07-15 | 2014-07-15 | A kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204008001U true CN204008001U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388055.XU Expired - Lifetime CN204008001U (en) | 2014-07-15 | 2014-07-15 | A kind of pressure device for precision regulating for UHV (ultra-high voltage) piston manometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204008001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692861A (en) * | 2018-08-13 | 2018-10-23 | 上海市计量测试技术研究院 | A kind of calibrating installation and Calculate Ways for piston gage |
| CN114518189A (en) * | 2021-12-30 | 2022-05-20 | 山东省计量科学研究院 | Ultrahigh pressure piston type pressure gauge with measuring range of 1400MPa |
-
2014
- 2014-07-15 CN CN201420388055.XU patent/CN204008001U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692861A (en) * | 2018-08-13 | 2018-10-23 | 上海市计量测试技术研究院 | A kind of calibrating installation and Calculate Ways for piston gage |
| CN114518189A (en) * | 2021-12-30 | 2022-05-20 | 山东省计量科学研究院 | Ultrahigh pressure piston type pressure gauge with measuring range of 1400MPa |
| CN114518189B (en) * | 2021-12-30 | 2024-06-11 | 山东省计量科学研究院 | Ultrahigh pressure piston type pressure gauge with measuring range of 1400MPa |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |