CN205480206U - Earth pressure sensor calibrating device's air supply pressure control system - Google Patents
Earth pressure sensor calibrating device's air supply pressure control system Download PDFInfo
- Publication number
- CN205480206U CN205480206U CN201620270478.0U CN201620270478U CN205480206U CN 205480206 U CN205480206 U CN 205480206U CN 201620270478 U CN201620270478 U CN 201620270478U CN 205480206 U CN205480206 U CN 205480206U
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- valve
- pressure
- air inlet
- shut
- aerofluxus
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Abstract
The utility model discloses an earth pressure sensor calibrating device's air supply pressure control system, include and constitute process boost control device jointly by the shut -off valve that admits air, decompression air -vent valve, admit air measurement needle valve and the bypass valve that admits air to and constitute return stroke step -down controlling means jointly by exhaust shut -off valve, backpressure air -vent valve, exhaust measurement needle valve and exhaust by pass valve. Through the utility model discloses the controlled pressure can make the pressure quick approach test point pressure in the overhead tank that is equipped with the earth pressure sensor, can realize again that the high accuracy of a plurality of test point pressure is adjusted and the quick switching, has shortened the settling time of every test point among the calibration process, has improved the work efficiency of calibration, has guaranteed calbiration system accuracy class's requirement simultaneously again, and control system's pressure control waviness is less than 0.005%F. S.
Description
Technical field
This utility model relates to the air supply system of a kind of soil pressure case calibrating installation, particularly relates to a kind of soil pressure
The bleed pressure control system of calibrating device for sensors.
Background technology
Soil pressure case is for measuring the special sensor of ground pressure, outside it in geotechnical centrifuge test
Shape structure is oblate cylinder, and it is that M20mm × 1.5mm pressure passes that its calibration steps is different from standard interface
The calibrating mode of sensor.
The bleed pressure regulator of traditional pressure sensor calibrating apparatus mainly has Full-automatic pressure calibration instrument
With manual pneumatic pump both, wherein, the built-in electrodynamic pump of Full-automatic pressure calibration instrument, rechargeable battery is that it supplies
Electricity, Based Intelligent Control, quick and precisely output sets pressure, can realize automatically calibrating, automatically carry out data analysis,
Automatically storage, can accomplish to calibrate with no paper at all；Its working method of Manual air-pressure pump is to produce pressure by depression bar
Power, is adjusted pressure by pressure regulating valve and controls, the simple in construction of compression pump, it is not necessary to external 220VAC
Alternating current power supply, it is simple to safeguard.
Above two tradition bleed pressure regulator each has advantage, and is used equally to field condition sensing
The calibration operation of device, but be all only suitable for M20mm × 1.5mm interface that interface is standard pressure transmitter,
Pressure switch, the calibration of pressure transducer, and the structure of soil pressure case is special, needs to load in pressurized tank
Calibrating, container volume is relatively big, and above two tradition bleed pressure regulator all cannot enter for pressurized tank
Row jumbo fills, deflation operations；And, in the calibration process of soil pressure case, pressure calibration is at least
Having 5 test points, in process and backhaul, the time arriving test point is the shortest, and during voltage stabilizing
Between also short, so could improve sensor batch calibration work efficiency, above two tradition bleed pressure
Regulator more can not realize this function, so not being suitable for the calibration of soil pressure case.At present in public affairs
Open the bleed pressure regulator not the most being particularly suitable for soil pressure case calibration in document and actual application.
Utility model content
The purpose of this utility model is that provides one to be exclusively used in soil pressure case to solve the problems referred to above
The bleed pressure control system of calibrating installation.
This utility model is achieved through the following technical solutions above-mentioned purpose:
The bleed pressure control system of a kind of soil pressure case calibrating installation, including for entering of being connected with source of the gas
Trachea, for escape pipe tank connected with pressure with for discharging the exhaustor of gas, institute in described pressurized tank
Stating and be connected by being connected trachea between air inlet pipe with described escape pipe, described bleed pressure control system is also
Close including air inlet shut-off valve, decompression pressure regulator valve, air inlet metering needle-valve, air inlet bypass valve, Pressure gauge, aerofluxus
Disconnected valve, back pressure pressure regulator valve, aerofluxus metering needle-valve and exhaust by-pass valve, described air inlet shut-off valve, described decompression
Pressure regulator valve, described air inlet metering needle-valve and described Pressure gauge installed in series in order are on described connection trachea and institute
State air inlet shut-off valve in described air inlet pipe, described connection trachea, be positioned at the position outside described air inlet shut-off valve
Put and be positioned at the two ends respectively with described air inlet bypass valve, the position outside described air inlet metering needle-valve and interlink
Connect, described connection trachea is positioned at the first end of the position outside described air inlet metering needle-valve and described exhaustor
Connect, described aerofluxus shut-off valve, described back pressure pressure regulator valve and described aerofluxus metering needle-valve installed in series in order in
On described exhaustor and described aerofluxus shut-off valve is near the first end of described exhaustor, described exhaustor is positioned at
Position outside described aerofluxus shut-off valve and be positioned at described aerofluxus metering needle-valve outside position respectively with described row
The two ends of gas bypass valve are connected.
In said structure, air inlet shut-off valve, decompression pressure regulator valve, air inlet metering needle-valve and air inlet bypass valve are common
Composition process boosting controller, aerofluxus shut-off valve, back pressure pressure regulator valve, aerofluxus metering needle-valve and exhaust bypass
Valve collectively constitutes backhaul fall pressure control device, and process boosting and two processes of backhaul blood pressure lowering all can realize soil pressure
The bleed pressure of calibrating device for sensors carries out the effect of accurate control, and the former has rapid pressure to one
The function of constant-pressure, the latter has the function from certain pressure quick pressure releasing to normal pressure, is greatly improved source of the gas
Control speed and efficiency.
In order to improve safety, described bleed pressure control system also includes pressure relieving valve, and described pressure relieving valve is installed
On described exhaustor.
Further, described air inlet shut-off valve, described decompression pressure regulator valve, described air inlet metering needle-valve, described in enter
Gas bypass valve, described Pressure gauge, described aerofluxus shut-off valve, described back pressure pressure regulator valve, described aerofluxus gauge needle
Valve, described exhaust by-pass valve, described pressure relieving valve and described connection trachea are mounted on Stress control case.So
Make the convenient easy band of native system, passive use, be suitable for field condition operation.
The beneficial effects of the utility model are:
This utility model is by arranging by by air inlet shut-off valve, decompression pressure regulator valve, air inlet metering needle-valve and air inlet
Logical valve collectively constitutes process boosting controller, and by aerofluxus shut-off valve, back pressure pressure regulator valve, aerofluxus metering
Needle-valve and exhaust by-pass valve collectively constitute backhaul fall pressure control device, can make the pressure equipped with soil pressure case
Pressure fast approaching test point pressure in tank, can realize again the high accuracy regulation of multiple test point pressure with fast
Speed conversion, shortens the stabilization time of each test point in calibration process, improves the work efficiency of calibration,
In turn ensure that the requirement of calibration system accuracies grade, the Stress control waviness of control system is less than simultaneously
0.005%F.S.
Accompanying drawing explanation
When Fig. 1 is the bleed pressure control system of soil pressure case calibrating installation described in the utility model
Structural representation.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, the bleed pressure control system bag of soil pressure case calibrating installation described in the utility model
Include the air inlet pipe 4 for being connected with source of the gas, for escape pipe 13 tank connected with pressure, described for discharging
In pressurized tank, the exhaustor 21 of gas, air inlet shut-off valve 5, decompression pressure regulator valve 8, air inlet are measured needle-valve 9, are entered
Gas bypass valve 7, Pressure gauge 11, pressure relieving valve 12, aerofluxus shut-off valve 16, back pressure pressure regulator valve 18, aerofluxus metering
Needle-valve 20 and exhaust by-pass valve 17, be connected by being connected trachea 10 between air inlet pipe 4 with escape pipe 13,
Air inlet shut-off valve 5, decompression pressure regulator valve 8, air inlet metering needle-valve 9, Pressure gauge 11, pressure relieving valve 12 are gone here and there successively
Connection is installed on connection trachea 10 and air inlet shut-off valve 5 is near air inlet pipe 4, connects and is positioned at air inlet on trachea 10
Position outside shut-off valve 5 and the position being positioned at outside air inlet metering needle-valve 9 are respectively by air inlet bypass pipe 6
It is connected with the two ends of air inlet bypass valve 7, connects the position being positioned on trachea 10 outside air inlet metering needle-valve 9
Put the first end with exhaustor 21 to be connected, aerofluxus shut-off valve 16, back pressure pressure regulator valve 18 and aerofluxus metering needle-valve
20 installed in series in orders are on exhaustor 21 and aerofluxus shut-off valve 16 is near the first end of exhaustor 21, aerofluxus
It is positioned at the position outside aerofluxus shut-off valve 16 on pipe 21 to lead to respectively with the position being positioned at aerofluxus metering needle-valve 20 side
The two ends crossing exhaust bypass pipe 19 and exhaust by-pass valve 17 are connected；Air inlet shut-off valve 5, decompression pressure regulator valve
8, air inlet metering needle-valve 9, air inlet bypass valve 7, Pressure gauge 11, pressure relieving valve 12, aerofluxus shut-off valve 16, the back of the body
Pressure pressure regulator valve 18, aerofluxus metering needle-valve 20 and exhaust by-pass valve 17 and connection trachea 10 are mounted on pressure control
In the case of case 3 processed or tank wall.In this example, air inlet pipe 4, escape pipe 13 and connection trachea 10 are formed in one
A trachea, in actual application, be also formed by connecting by joint with multistage trachea.
During use, the high pressure outlet air pipe of air inlet pipe 4 with the nitrogen pot 1 as source of the gas is connected, nitrogen pot 1
Escape pipe on precondition pressure table 2 is installed, escape pipe 13 is connected with the pressure breathing pipe of pressurized tank 14,
Socket 15 is installed on pressurized tank 14, soil pressure case is installed in pressurized tank 14.
Below in conjunction with the Fig. 1 bleed pressure control system to soil pressure case calibrating installation described in the utility model
The preferred control method used is specifically described, in order to the operation principle of understanding native system, but following side
Method is not unique method, is not the protection object of the application.
The preferred control method that bleed pressure control system uses comprises the following steps:
(1) process boosting rectifier control, comprises the following steps:
(1.1) close air inlet shut-off valve 5, aerofluxus shut-off valve 16 and exhaust by-pass valve 17, open air inlet bypass
Valve 7, quick air inlet is until pressure is close to the minimum pressure test point desirable pressure of soil pressure case；
(1.2) close air inlet bypass valve 7, open air inlet shut-off valve 5 and decompression pressure regulator valve 8, adjusted by decompression
Pressure valve 8 coarse adjustment pressure makes it boost to be more nearly the minimum pressure test point desirable pressure of soil pressure case；
(1.3) stop regulation decompression pressure regulator valve 8, open air inlet metering needle-valve 9, measure needle-valve 9 by air inlet
Fine setting pressure makes it boost to minimum pressure test point desirable pressure；
(1.4) complete soil pressure case after the calibration of minimum pressure test point, continue regulation decompression pressure regulation
Valve 8 and air inlet metering needle-valve 9, be adjusted to other multiple pressure testing point institutes successively by ascending for admission pressure
Need pressure, complete the soil pressure case calibration at multiple pressure testing point；Here regulation decompression pressure regulator valve 8 He
Method and the step (1.2) of air inlet metering needle-valve 9, (1.3) are similar, if poor between two test point pressure
Away from the least, then only regulation air inlet can measure needle-valve 9；
(2) backhaul blood pressure lowering controls, and comprises the following steps:
(2.1) close air inlet shut-off valve 5, air inlet bypass valve 7 and exhaust by-pass valve 17, open aerofluxus and turn off
Valve 16, back pressure pressure regulator valve 18 and aerofluxus metering needle-valve 20, make it drop by back pressure pressure regulator valve 18 coarse adjustment pressure
It is depressed into the maximum pressure test point desirable pressure being more nearly soil pressure case；
(2.2) stop regulation back pressure pressure regulator valve 18, finely tune pressure by aerofluxus metering needle-valve 20 and make its blood pressure lowering
To maximum pressure test point desirable pressure；
(2.3) complete soil pressure case after the calibration of maximum pressure test point, continue regulation back pressure pressure regulation
Valve 18 and aerofluxus metering needle-valve 20, be adjusted to other multiple pressure testing point successively by ascending for pressure at expulsion
Desirable pressure, completes the soil pressure case calibration at multiple pressure testing point；Here regulation back pressure pressure regulator valve 18
Similar with method and the step (2.1) of aerofluxus metering needle-valve 20, (2.2), if two test point pressure it
Between gap the least, then can only regulation aerofluxus metering needle-valve 20；
(2.4) after calibration terminates, closing aerofluxus shut-off valve 16, open exhaust by-pass valve 17, Quick air-discharge is let out
It is depressed into normal pressure or preset pressure.
Above-described embodiment is preferred embodiment of the present utility model, is not to technical solutions of the utility model
Restriction, as long as the technical scheme that can realize on the basis of above-described embodiment without creative work,
In the range of being regarded as falling into the rights protection of this utility model patent.
Claims (3)
1. a bleed pressure control system for soil pressure case calibrating installation, including for being connected with source of the gas
Air inlet pipe, for escape pipe tank connected with pressure with for discharging the exhaustor of gas in described pressurized tank,
Be connected by being connected trachea between described air inlet pipe with described escape pipe, it is characterised in that: also include into
Gas shut-off valve, decompression pressure regulator valve, air inlet metering needle-valve, air inlet bypass valve, Pressure gauge, aerofluxus shut-off valve,
Back pressure pressure regulator valve, aerofluxus metering needle-valve and exhaust by-pass valve, described air inlet shut-off valve, described decompression pressure regulator valve,
Described air inlet metering needle-valve and described Pressure gauge installed in series in order are on described connection trachea and described air inlet is closed
Disconnected valve is positioned at the position outside described air inlet shut-off valve in described air inlet pipe, described connection trachea and is positioned at
Described air inlet is measured the two ends respectively with described air inlet bypass valve, the position outside needle-valve and is connected, described company
It is positioned at the position outside described air inlet metering needle-valve on trachea to be connected with the first end of described exhaustor, described
Aerofluxus shut-off valve, described back pressure pressure regulator valve and described aerofluxus metering needle-valve installed in series in order are in described exhaustor
Go up and described aerofluxus shut-off valve is near the first end of described exhaustor, described exhaustor is positioned at described aerofluxus and closes
Position outside disconnected valve and be positioned at the position outside described aerofluxus metering needle-valve respectively with described exhaust by-pass valve
Two ends are connected.
The bleed pressure control system of soil pressure case calibrating installation the most according to claim 1, it is special
Levy and be: described bleed pressure control system also includes that pressure relieving valve, described pressure relieving valve are installed on described exhaustor
On.
The bleed pressure control system of soil pressure case calibrating installation the most according to claim 2, it is special
Levy and be: by described air inlet shut-off valve, described decompression pressure regulator valve, described air inlet metering needle-valve, described air inlet
Logical valve, described Pressure gauge, described aerofluxus shut-off valve, described back pressure pressure regulator valve, described aerofluxus metering needle-valve,
Described exhaust by-pass valve, described pressure relieving valve and described connection trachea are mounted on Stress control case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620270478.0U CN205480206U (en) | 2016-04-01 | 2016-04-01 | Earth pressure sensor calibrating device's air supply pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620270478.0U CN205480206U (en) | 2016-04-01 | 2016-04-01 | Earth pressure sensor calibrating device's air supply pressure control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205480206U true CN205480206U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620270478.0U Withdrawn - After Issue CN205480206U (en) | 2016-04-01 | 2016-04-01 | Earth pressure sensor calibrating device's air supply pressure control system |
Country Status (1)
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| CN (1) | CN205480206U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650476A (en) * | 2016-04-01 | 2016-06-08 | 中国工程物理研究院总体工程研究所 | Gas source pressure control system of earth pressure sensor calibration apparatus and control method of gas source pressure control system |
| CN108195508A (en) * | 2017-12-11 | 2018-06-22 | 西安航天动力测控技术研究所 | A kind of Portable negative-pressure sensor field calibration device |
| CN109095418A (en) * | 2018-10-23 | 2018-12-28 | 广州达意隆包装机械股份有限公司 | A kind of control system and control method of bottle placer back pressure |
-
2016
- 2016-04-01 CN CN201620270478.0U patent/CN205480206U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650476A (en) * | 2016-04-01 | 2016-06-08 | 中国工程物理研究院总体工程研究所 | Gas source pressure control system of earth pressure sensor calibration apparatus and control method of gas source pressure control system |
| CN105650476B (en) * | 2016-04-01 | 2017-08-29 | 中国工程物理研究院总体工程研究所 | The bleed pressure control system and control method of soil pressure case calibrating installation |
| CN108195508A (en) * | 2017-12-11 | 2018-06-22 | 西安航天动力测控技术研究所 | A kind of Portable negative-pressure sensor field calibration device |
| CN109095418A (en) * | 2018-10-23 | 2018-12-28 | 广州达意隆包装机械股份有限公司 | A kind of control system and control method of bottle placer back pressure |
| CN109095418B (en) * | 2018-10-23 | 2023-12-15 | 广州达意隆包装机械股份有限公司 | Control system and control method for back pressure of filling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20170829 |