CN108593188A - A kind of pressure capsule system - Google Patents
A kind of pressure capsule system Download PDFInfo
- Publication number
- CN108593188A CN108593188A CN201810281208.3A CN201810281208A CN108593188A CN 108593188 A CN108593188 A CN 108593188A CN 201810281208 A CN201810281208 A CN 201810281208A CN 108593188 A CN108593188 A CN 108593188A
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- Prior art keywords
- pressure
- low
- precision
- runner
- capsule system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention provides a kind of pressure capsule systems, belong to hydraulic pressure sensory field.A kind of pressure capsule system of the present invention includes that low-voltage high-precision pressure measurement cell, height force down precision pressure measuring unit, runner switching control valve and measure liquid and introduce unit; low-voltage safety protection location is communicated with low-voltage high-precision pressure measurement cell; runner switching control valve is mounted on the runner between low-voltage high-precision pressure measurement cell and high-pressure measuring unit, and high-pressure measuring unit and runner switching control valve are connect with liquid introducing unit is measured.The present invention is responsible for fluid to be measured being passed through this pressure capsule system by that will measure liquid introducing unit, and the low pressure chamber that fluid to be measured is directed respectively into according to the range of fluid pressure using runner switching control valve the high high pressure chest and low-voltage high-precision pressure measurement cell for forcing down precision pressure measuring unit is measured, it is integrated with the advantages of wide range pressure sensor is with small-range pressure sensor, improves the quality of whole system.
Description
Technical field
The present invention relates to a kind of pressure capsule systems, belong to hydraulic pressure sensory field.
Background technology
Current pressure capsule system both domestic and external is mostly the pressure capsule system using single pressure sensor, or is selected straight
Satisfactory pressure sensor is connect, such pressure capsule system error is small and simple in structure, is easy to make；But in this way
Structure be under pressure sensor limitation influence, usually be made trade-offs between range and precision, and it is used
Pressure sensor is generally more accurate, involves great expense, and also usually can not find and had not only met sufficiently large range, but also meets sufficiently high
The pressure sensor of precision.
Invention content
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of pressure sensing system
System.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of pressure capsule system, the pressure capsule system include that low-voltage high-precision pressure measurement cell, height force down essence
It spends pressure measurement cell, runner switching control valve and measures liquid and introduce unit, the low-voltage safety protection location is high with low pressure
Precision pressure measuring unit communicates, and runner switching control valve is mounted on low-voltage high-precision pressure measurement cell and high-pressure measures
On runner between unit, high-pressure measuring unit and runner switching control valve are connect with liquid introducing unit is measured.
A kind of pressure capsule system of the present invention, the low-voltage high-precision pressure measurement cell include that low-voltage high-precision pressure passes
Sensor and low pressure vessel, low pressure vessel is connected with low-voltage high-precision pressure sensor, and is cut by runner and runner
Control valve is changed to be connected.
A kind of pressure capsule system of the present invention, it includes that height forces down precision pressure biography that the height, which forces down precision pressure measuring unit,
Sensor and high-pressure vessel, high-pressure vessel forces down accuracy pressure sensor with height and is connected, and is cut by runner and runner
It changes control valve and measures liquid introducing unit and be connected.
A kind of pressure capsule system of the present invention, the runner switching control valve include that packaged type control spool and runner are cut
Control vessel is changed, packaged type controls spool by pressure-driven, and the material that packaged type controls spool is 40Cr.
A kind of pressure capsule system of the present invention, the packaged type control spool include the telescopic spring of pressure control opening and closing
Mechanism.
A kind of pressure capsule system of the present invention, the packaged type, which controls, is equipped with runner opening and closing switch unit on spool.
The material of a kind of pressure capsule system of the present invention, the entire valve block of the runner switching control valve is No. 45 steel.
The range of a kind of pressure capsule system of the present invention, the low-voltage high-precision pressure sensor is 1.6MPa.
A kind of pressure capsule system of the present invention, the range that the height forces down accuracy pressure sensor are 10MPa.
A kind of pressure capsule system of the present invention is to solve pressure capsule system in the prior art to pass due to the use of single pressure
The problem of pressure capsule system range and precision are by limitation caused by sensor, improves the quality of pressure capsule system, makes it
Fluid to be measured is passed through by the range that pressure measurement is improved under the premise of ensureing percent accuracy by measuring liquid introducing unit
This pressure capsule system, and fluid to be measured is directed respectively into using runner switching control valve by height according to the range of fluid pressure and is forced down
The high-pressure vessel of precision pressure measuring unit and the low pressure vessel of low-voltage high-precision pressure measurement cell, and then measure
The pressure of fluid to be measured, the present invention is integrated with the advantages of wide range pressure sensor is with small-range pressure sensor, to improve
The quality of entire pressure capsule system.
Description of the drawings
Fig. 1 is a kind of block diagram of pressure capsule system of the present invention.
Fig. 2 is a kind of stereogram of pressure capsule system of the present invention.
Fig. 3 is a kind of vertical view of pressure capsule system of the present invention.
Fig. 4 is the sectional view of the A-A ＇ of Fig. 3.
Fig. 5 is the structural schematic diagram of runner switching control valve.
Reference numeral in figure, 1 is low-voltage high-precision pressure measurement cell；2 force down precision pressure measuring unit for height；3
For runner switching control valve；4 introduce unit to measure liquid；1-2 is low pressure vessel；2-2 is high-pressure vessel；3-1
Spool is controlled for packaged type；3-2 is runner switching control vessel.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in further detail：The present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
Embodiment one：As shown in Figs. 1-5, a kind of pressure capsule system involved by the present embodiment, including low-voltage high-precision
Pressure measurement cell, height, which force down precision pressure measuring unit, runner switching control valve and measure liquid, introduces unit, the low pressure
Security protection unit is communicated with low-voltage high-precision pressure measurement cell, and runner switching control valve is surveyed mounted on low-voltage high-precision pressure
Measure on the runner between unit and high-pressure measuring unit, high-pressure measuring unit and runner switching control valve with measure
Liquid introduces unit connection.
The present invention introduces the tested quantity of fluid of unit introducing by measuring liquid, is connected in the low pressure chamber of an integrated valve block
The pressure sensor of high-precision small-range connects the pressure sensor of low precision wide range on high pressure chest, uses hydraulic valve block
With spool with the use of the flow direction of switching runner, by runner switching control valve switch operating chamber low-voltage high-precision pressure is surveyed
Amount unit forces down precision pressure measuring unit with height and respectively plays their strong point, and different pressures is used in different pressure ranges
Force snesor is gone out within small-range pressure sensor range using low pressure chamber small-range pressure sensor work measurement more acurrate
Fluid pressure, close low pressure vessel in the range beyond small-range pressure sensor and use the low precision of high pressure chest big
The pressure sensor of range measures fluid pressure when high pressure, gathered common small-range high-precision pressure sensor with it is a large amount of
The advantages of journey low accuracy pressure sensor, improve the quality of pressure capsule system.
Embodiment two：As shown in Figures 2 and 4, a kind of pressure capsule system involved by the present embodiment, the low-voltage high-precision
Pressure measurement cell includes low-voltage high-precision pressure sensor and low pressure vessel, low pressure vessel and low-voltage high-precision pressure
Force snesor is connected, and is connected with runner switching control valve by runner.
Small-range high-precision pressure sensor in low-voltage high-precision pressure measurement cell can carry when pressure is small
For more accurate pressure, the percentage error of pressure capsule system is reduced.
Embodiment three：As shown in Figures 2 and 3, a kind of pressure capsule system involved by the present embodiment, the height force down precision
Pressure measurement cell includes that height forces down accuracy pressure sensor and high-pressure vessel, and high-pressure vessel forces down precision pressure with height
Force snesor is connected, and introduces unit with runner switching control valve and measurement liquid by runner and be connected.
Height forces down the low accuracy pressure sensor of wide range in precision pressure measuring unit, improves pressure capsule system
Range.
Example IV：As shown in Figures 2 and 3, a kind of pressure capsule system involved by the present embodiment, the runner switching control
Valve processed includes packaged type control spool and runner switching control vessel, and packaged type controls spool by pressure-driven, moves
The material that formula controls spool is 40Cr.
Spool is made of 40Cr, goes out ladder using lathe car, and to polishing at sealing.Spring is housed on spool.
Embodiment five：As shown in Fig. 2, a kind of pressure capsule system involved by the present embodiment, the packaged type control
Spool includes the telescopic spring mechanism of pressure control opening and closing.
Embodiment six：As shown in Figures 2 and 3, a kind of pressure capsule system involved by the present embodiment, the packaged type control
Runner opening and closing switch unit is installed on spool processed.
The operation principle of packaged type control spool is the low pressure since original state runner switching control vessel or so communicates
High-precision pressure measuring unit can measure the pressure of fluid to be measured, and when pressure gradually rises, but packaged type controls spool
The pressure application surface product of left and right is different, and spool is caused to move to left, and compressed spring, when arriving zoned pressure, closed low is high on the left of spool
Precision pressure measuring unit is disconnected with fluid to be measured, chooses the measurement parameter that height forces down precision pressure measuring unit at this time.
Embodiment seven：As shown in figure 3, a kind of pressure capsule system involved by the present embodiment, the runner switching control
The material of the entire valve block of valve is No. 45 steel.
Valve block is made of No. 45 steel, and inside is slightly bored using drilling machine, essence brill, finish reamed, it is external rough milled using milling machine, finish-milling, and
With grinding machine fine grinding.
Embodiment eight：As shown in figure 3, a kind of pressure capsule system involved by the present embodiment, the low-voltage high-precision pressure
The range of force snesor is 1.6MPa.
Embodiment nine：As shown in figure 3, a kind of pressure capsule system involved by the present embodiment, the height force down precision pressure
The range of force snesor is 10MPa.
The foregoing is only a preferred embodiment of the present invention, these specific implementation modes are all based on the present invention
Different realization methods under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in, should all cover the present invention
Within protection domain.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (9)
1. a kind of pressure capsule system, which is characterized in that the pressure capsule system includes low-voltage high-precision pressure measurement cell
(1), height, which forces down precision pressure measuring unit (2), runner switching control valve (3) and measures liquid, introduces unit (4), the low pressure
Security protection unit (4) is communicated with low-voltage high-precision pressure measurement cell (1), and it is high that runner switching control valve (3) is mounted on low pressure
On runner between precision pressure measuring unit (1) and high-pressure measuring unit (2), high-pressure measuring unit (2) and
Runner switching control valve (3) is connect with liquid introducing unit (4) is measured.
2. pressure capsule system according to claim 1, which is characterized in that the low-voltage high-precision pressure measurement cell
(1) include low-voltage high-precision pressure sensor and low pressure vessel (1-2), low pressure vessel (1-2) and low-voltage high-precision
Pressure sensor is connected, and is connected with runner switching control valve (3) by runner.
3. pressure capsule system according to claim 1, which is characterized in that the height forces down precision pressure measuring unit
(2) include that height forces down accuracy pressure sensor and high-pressure vessel (2-2), high-pressure vessel (2-2) forces down precision with height
Pressure sensor is connected, and introduces unit (4) with runner switching control valve (3) and measurement liquid by runner and be connected.
4. pressure capsule system according to claim 1, which is characterized in that the runner switching control valve (3) includes can
Movable type control spool (3-1) and runner switching control vessel (3-2), packaged type control spool (3-1), can by pressure-driven
The material of movable type control spool (3-1) is 40Cr.
5. pressure capsule system according to claim 4, which is characterized in that the packaged type control spool (3-1) is wrapped
The telescopic spring mechanism of the control opening and closing containing pressure.
6. pressure capsule system according to claim 4 or 5, which is characterized in that the packaged type control spool (3-1)
On be equipped with runner opening and closing switch unit.
7. pressure capsule system according to claim 1, which is characterized in that the runner switching control valve (3) it is entire
The material of valve block is No. 45 steel.
8. pressure capsule system according to claim 2, which is characterized in that the amount of the low-voltage high-precision pressure sensor
Journey is 1.6MPa.
9. pressure capsule system according to claim 3, which is characterized in that the height forces down the amount of accuracy pressure sensor
Journey is 10MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281208.3A CN108593188B (en) | 2018-04-02 | 2018-04-02 | Pressure sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281208.3A CN108593188B (en) | 2018-04-02 | 2018-04-02 | Pressure sensing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108593188A true CN108593188A (en) | 2018-09-28 |
| CN108593188B CN108593188B (en) | 2020-06-12 |
Family
ID=63624143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810281208.3A Active CN108593188B (en) | 2018-04-02 | 2018-04-02 | Pressure sensing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108593188B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489900A (en) * | 2018-11-08 | 2019-03-19 | 上海华力微电子有限公司 | Implanter vacuum meter damages control device and the method for answering a pager's call of answering a pager's call |
| CN112268653A (en) * | 2020-11-09 | 2021-01-26 | 南京深度系统工程有限公司 | Pressure measuring device and method for time division multiple access |
| CN117388445A (en) * | 2023-12-12 | 2024-01-12 | 山东省计量科学研究院 | Atmospheric environment monitoring system |
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|---|---|---|---|---|
| JPS59117965A (en) * | 1982-12-24 | 1984-07-07 | Hitachi Ltd | Four-way switching valve |
| JPH04309830A (en) * | 1991-04-05 | 1992-11-02 | Komatsu Ltd | Automatic pressure range selecting device for oil pressure measuring gauge |
| CN201554899U (en) * | 2009-11-30 | 2010-08-18 | 清华大学 | Self-operated three-way change valve |
| CN101922990A (en) * | 2010-07-13 | 2010-12-22 | 上海大田阀门管道工程有限公司 | Self-operated micropressure controller |
| CN102506196A (en) * | 2011-10-24 | 2012-06-20 | 浙江盾安禾田金属有限公司 | Self-operated three-way valve |
| CN202629286U (en) * | 2012-06-13 | 2012-12-26 | 山推工程机械股份有限公司 | Change-over valve |
| CN102927316A (en) * | 2011-08-11 | 2013-02-13 | 上海梅山钢铁股份有限公司 | Self-operated pressure range switching device |
| CN205383436U (en) * | 2016-02-18 | 2016-07-13 | 许昌禹龙发电有限责任公司 | Wide range high accuracy pressure indicating system |
| CN105805087A (en) * | 2016-05-09 | 2016-07-27 | 中国重型机械研究院股份公司 | Multistage-pressure automatic switching detection device |
| CN206816576U (en) * | 2017-03-25 | 2017-12-29 | 南京榆液液压有限公司 | Switch the switching valve system of high-low pressure meter |
-
2018
- 2018-04-02 CN CN201810281208.3A patent/CN108593188B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59117965A (en) * | 1982-12-24 | 1984-07-07 | Hitachi Ltd | Four-way switching valve |
| JPH04309830A (en) * | 1991-04-05 | 1992-11-02 | Komatsu Ltd | Automatic pressure range selecting device for oil pressure measuring gauge |
| CN201554899U (en) * | 2009-11-30 | 2010-08-18 | 清华大学 | Self-operated three-way change valve |
| CN101922990A (en) * | 2010-07-13 | 2010-12-22 | 上海大田阀门管道工程有限公司 | Self-operated micropressure controller |
| CN102927316A (en) * | 2011-08-11 | 2013-02-13 | 上海梅山钢铁股份有限公司 | Self-operated pressure range switching device |
| CN102506196A (en) * | 2011-10-24 | 2012-06-20 | 浙江盾安禾田金属有限公司 | Self-operated three-way valve |
| CN202629286U (en) * | 2012-06-13 | 2012-12-26 | 山推工程机械股份有限公司 | Change-over valve |
| CN205383436U (en) * | 2016-02-18 | 2016-07-13 | 许昌禹龙发电有限责任公司 | Wide range high accuracy pressure indicating system |
| CN105805087A (en) * | 2016-05-09 | 2016-07-27 | 中国重型机械研究院股份公司 | Multistage-pressure automatic switching detection device |
| CN206816576U (en) * | 2017-03-25 | 2017-12-29 | 南京榆液液压有限公司 | Switch the switching valve system of high-low pressure meter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489900A (en) * | 2018-11-08 | 2019-03-19 | 上海华力微电子有限公司 | Implanter vacuum meter damages control device and the method for answering a pager's call of answering a pager's call |
| CN112268653A (en) * | 2020-11-09 | 2021-01-26 | 南京深度系统工程有限公司 | Pressure measuring device and method for time division multiple access |
| CN117388445A (en) * | 2023-12-12 | 2024-01-12 | 山东省计量科学研究院 | Atmospheric environment monitoring system |
| CN117388445B (en) * | 2023-12-12 | 2024-04-05 | 山东省计量科学研究院 | Atmospheric environment monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108593188B (en) | 2020-06-12 |
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