CN208818421U - A kind of energy storage pressure table calibration of hydraulic pressure device - Google Patents
A kind of energy storage pressure table calibration of hydraulic pressure device Download PDFInfo
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- CN208818421U CN208818421U CN201821501365.2U CN201821501365U CN208818421U CN 208818421 U CN208818421 U CN 208818421U CN 201821501365 U CN201821501365 U CN 201821501365U CN 208818421 U CN208818421 U CN 208818421U
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- valve
- pressure table
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- accumulator
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Abstract
The utility model provides a kind of energy storage pressure table calibration of hydraulic pressure device, fuel tank is connected to including vane pump oil inlet, a check valve is installed on the main line of the vane pump oil outlet connection, safety valve oil inlet is connected on main line, its oil outlet is connected to fuel tank, base measuring pressure table, master gauge lower end is serially connected with a throttle valve respectively, the two throttle valve oil inlets are connected with main line, accumulator lower end hydraulic oil port is connected through an one-way throttle valve with main line, accumulator upper end inflating port is in series with a valve and an energy storage pressure table by the road, shut-off valve inlet one end connects main line, its other end oil outlet is connected to the fuel tank, the utility model opens bag type accumulator vent valve to adjust the oil pressure inside fluid pressure line, during pressure reduction, base measuring pressure table, with calibration high reliablity, calibration High-efficient feature.
Description
Technical field
The utility model belongs to manometer calibration technical field more particularly to a kind of energy storage pressure table calibration of hydraulic pressure dress
It sets.
Background technique
Pressure gauge refers to the instrument for measuring and indicating using elastic element as sensing element higher than environmental pressure, using extremely
Generally, it almost spreads all industrial flow and scientific research field.In heat distribution pipe network, oil gas transmission, water and air supply system, vehicle
The fields such as maintenance factory shop are seen everywhere.
Pressure gauge belongs to the cubing of long-play monitoring, and constant pressure is with the presence or absence of leakage, transformation in long-time use process
The sensitive situation of operating condition, registration accuracy are required to be detected in a calibration process, and traditional correcting device for pressure gauge has pressure
Power range is small, it is difficult to the shortcomings that constant pressure.
It therefore, is very necessary set forth herein a kind of energy storage pressure table calibration of hydraulic pressure device.
Summary of the invention
For existing correcting device for pressure gauge, the utility model provides a kind of energy storage pressure table
Calibration of hydraulic pressure device.
A kind of energy storage pressure table calibration of hydraulic pressure device, including energy storage pressure table, valve, accumulator, one-way throttle valve,
Throttle valve, base measuring pressure table, master gauge, check valve, safety valve, fuel tank, vane pump and shut-off valve；Vane pump oil inlet connects
Leading to fuel tank, a check valve is installed on the main line of the vane pump oil outlet connection, safety valve oil inlet is connected on main line,
Its oil outlet is connected to fuel tank, and base measuring pressure table, master gauge lower end are serially connected with a throttle valve, the two throttle valve oil inlets respectively
Mouth is connected with main line, and accumulator lower end hydraulic oil port is connected through an one-way throttle valve with main line, on the accumulator
End inflating port is in series with a valve and an energy storage pressure table by the road, and shut-off valve inlet one end connects main line, another
Hydraulic fluid port is brought out to be connected to the fuel tank.
Preferably, the accumulation of energy implement body uses bag type accumulator.
Preferably, the accumulator is equipped with a vent valve.
Preferably, the base measuring pressure table, master gauge are via a fast insertion type joint and piping connection.
Preferably, the base measuring pressure table, the minimum division value of two table of master gauge are equal.
Preferably, the maximum that the means for operation pressure of safety valve value is less than both the base measuring pressure table, master gauge is shown
Numerical value.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model makes the hydraulic oil inside fluid pressure line be in pressure constant state, static pressure maintaining using accumulator pressure maintaining
Observation pressure gauge registration is simple to operate with base measuring pressure table.
2, the utility model opens bag type accumulator vent valve to adjust the oil pressure inside fluid pressure line, in pressure reduction
In the process, base measuring pressure table has calibration high reliablity, the high feature of calibration efficiency.
Detailed description of the invention
Fig. 1 is the utility model structure chart.
In figure:
1- energy storage pressure table, 2- valve, 3- accumulator, 4- one-way throttle valve, 5- throttle valve, 6- base measuring pressure table, 7-
Master gauge, 8- check valve, 9- safety valve, 10- fuel tank, 11- vane pump, 12- shut-off valve.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
Embodiment:
As shown in Fig. 1
The utility model provides a kind of energy storage pressure table calibration of hydraulic pressure device, including energy storage pressure table 1, valve 2, storage
It can device 3, one-way throttle valve 4, throttle valve 5, base measuring pressure table 6, master gauge 7, check valve 8, safety valve 9, fuel tank 10, blade
Pump 11 and shut-off valve 12；11 oil inlet of vane pump is connected to fuel tank 10, is equipped with one on the main line of 11 oil outlet of vane pump connection
Check valve 8,9 oil inlet of safety valve are connected on main line, and oil outlet is connected to fuel tank 10, base measuring pressure table 6, master gauge 7
Lower end is serially connected with a throttle valve 5 respectively, and two throttle valves, 5 oil inlet is connected with main line, and 3 lower end hydraulic oil port of accumulator is through one
One-way throttle valve 4 is connected with main line, and 3 upper end inflating port of accumulator is in series with a valve 2 and an energy storage pressure by the road
Table 1,12 inlet one end of shut-off valve connect main line, and other end oil outlet is connected to fuel tank 10, and accumulator 3 specifically uses skin
Bladder type hydropneumatic accumulator, accumulator 3 be equipped with a vent valve, base measuring pressure table 6, master gauge 7 via a fast insertion type joint with
Piping connection, grafting is convenient, and replacement pressure gauge facilitates rapid, the minimum division value of 7 liang of base measuring pressure table 6, master gauge tables
Equal, convenient for two meter readings of observation, calibration is convenient, and 9 working pressure of safety valve is less than base measuring pressure table 6,7 liang of master gauge
The maximum registration value of person, main line are equipped with safety valve 9, protection main line safety.
When utility model works, the check valve 8 on vane pump 11 and main line is opened, to main line oil inside offering, this
When observe base measuring pressure table 6, master gauge 7, close vane pump 11 under the action of accumulator 3, main line internal hydraulic pressure oil
Certain pressure is kept, whether observation base measuring pressure table 6, the reading of 7 two tables of master gauge are identical after 48 hours, to school
Quasi- base measuring pressure table 6 opens the vent valve on accumulator 3 if the reading observed after 48 hours is identical, releases 3 air bag of accumulator
Internal nitrogen, the hydraulic oil pressure inside main line can reduce at this time, and observation energy storage pressure table 1 is adjusted inside main line
Hydraulic fluid pressure, observe 7 liang of base measuring pressure table 6, master gauge tables during the hydraulic fluid pressure decline inside main line
Reading, using static, dynamic calibration pressure gauge, there is calibration high reliablity to calibrate base measuring pressure table 6, it is easy to operate,
The high feature of calibration efficiency.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (6)
1. a kind of energy storage pressure table calibration of hydraulic pressure device, which is characterized in that the energy storage pressure table calibration of hydraulic pressure device includes
Energy storage pressure table (1), valve (2), accumulator (3), one-way throttle valve (4), throttle valve (5), base measuring pressure table (6), standard
Pressure gauge (7), check valve (8), safety valve (9), fuel tank (10), vane pump (11) and shut-off valve (12)；Vane pump (11) oil inlet
Mouth is connected to fuel tank (10), is equipped with a check valve (8) on the main line of vane pump (11) the oil outlet connection, safety valve (9)
Oil inlet is connected on main line, and oil outlet is connected to fuel tank (10), and base measuring pressure table (6), master gauge (7) lower end are gone here and there respectively
It is connected to a throttle valve (5), two throttle valve (5) oil inlets are connected with main line, and accumulator (3) lower end hydraulic oil port is through one
One-way throttle valve (4) is connected with main line, and accumulator (3) upper end inflating port is in series with a valve (2) and one by the road and stores
Energy device pressure gauge (1), shut-off valve (12) inlet one end connect main line, and other end oil outlet and the fuel tank (10) are even
It is logical.
2. energy storage pressure table calibration of hydraulic pressure device as described in claim 1, which is characterized in that the accumulator (3) is specific
Using bag type accumulator.
3. energy storage pressure table calibration of hydraulic pressure device as claimed in claim 2, which is characterized in that set on the accumulator (3)
There is a vent valve.
4. energy storage pressure table calibration of hydraulic pressure device as described in claim 1, which is characterized in that the base measuring pressure table (6),
Master gauge (7) is via a fast insertion type joint and piping connection.
5. energy storage pressure table calibration of hydraulic pressure device as described in claim 1, which is characterized in that the base measuring pressure table (6),
The minimum division value of (7) two table of master gauge is equal.
6. energy storage pressure table calibration of hydraulic pressure device as described in claim 1, which is characterized in that safety valve (9) work
Pressure value is less than the maximum registration value of both the base measuring pressure table (6), master gauge (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501365.2U CN208818421U (en) | 2018-09-14 | 2018-09-14 | A kind of energy storage pressure table calibration of hydraulic pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501365.2U CN208818421U (en) | 2018-09-14 | 2018-09-14 | A kind of energy storage pressure table calibration of hydraulic pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208818421U true CN208818421U (en) | 2019-05-03 |
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ID=66276982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501365.2U Active CN208818421U (en) | 2018-09-14 | 2018-09-14 | A kind of energy storage pressure table calibration of hydraulic pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208818421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117191330A (en) * | 2023-09-21 | 2023-12-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | In-situ calibration method for pressure instrument of large combustion wind tunnel |
-
2018
- 2018-09-14 CN CN201821501365.2U patent/CN208818421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117191330A (en) * | 2023-09-21 | 2023-12-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | In-situ calibration method for pressure instrument of large combustion wind tunnel |
| CN117191330B (en) * | 2023-09-21 | 2024-04-26 | 中国空气动力研究与发展中心超高速空气动力研究所 | In-situ calibration method for pressure instrument of large combustion wind tunnel |
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