CN207881888U - Manometer testboard based on hydraulic system - Google Patents
Manometer testboard based on hydraulic system Download PDFInfo
- Publication number
- CN207881888U CN207881888U CN201820241368.0U CN201820241368U CN207881888U CN 207881888 U CN207881888 U CN 207881888U CN 201820241368 U CN201820241368 U CN 201820241368U CN 207881888 U CN207881888 U CN 207881888U
- Authority
- CN
- China
- Prior art keywords
- manometer
- test
- throttle
- testboard
- valve
- 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.)
- Active
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
It includes fuel tank, oil pump, motor, check valve, filter and test cell that the utility model, which discloses a kind of manometer testboard based on hydraulic system,；Test cell includes the first master gauge, first throttle valve, second throttle and test interface；First throttle valve is connected with second throttle, and the first master gauge and test interface are disposed on the pipeline between first throttle valve and second throttle；Multiple test cells compose in parallel a test cell group, and fuel tank is connected with oil pump, check valve and filter successively, and the oil inlet of first throttle valve is connected with filter, and the oil outlet of second throttle is connected with fuel tank.The utility model proposes a kind of hydraulic system pass through be arranged first throttle valve pressure size, keep the pressure value on different test cells different, when test verifies manometer, it is selected to carry out test verification on corresponding test cell according to the pressure value of manometer, improves the test checking precision of manometer.
Description
Technical field
The utility model is related to instrument check technical fields, and in particular to a kind of manometer test based on hydraulic system
Platform.
Background technology
Pressure measurement is one of the major parameter of industrial installation process control, in order to ensure detection parameters are accurate, instrument
Table performance meets design requirement, and the instrument that requirements of the national standard must use process units carries out test verification.
In terms of Meter Test verification, manometer accounts for that the quantity being devices under is most, and reference instrument is most complete, tests work
When longest, that is, the resource that occupies is maximum.Existing manometer testing board verification range is fixed, can not be to different pressures ladder
The manometer of degree carries out class test, the testboard of big pressure value when test verifies the manometer of small pressure value precision without
Method ensures.
Utility model content
The main purpose of the utility model is to provide a kind of manometer testboard based on hydraulic system, it is intended to solve existing
Some manometer testing board verification ranges are fixed, and can not carry out class test to the manometer of different pressures gradient,
The testboard of big pressure value the problem of precision can not ensure when test verifies the manometer of small pressure value.
To achieve the above object, the utility model proposes a kind of manometer testboard based on hydraulic system, packet
Include fuel tank, oil pump, motor, check valve, filter and test cell；The test cell includes the first master gauge, first
Throttle valve, second throttle and test interface；The oil inlet phase of the oil outlet of the first throttle valve and the second throttle
Even, first master gauge and institute are disposed on the pipeline between the first throttle valve and the second throttle
State test interface；Multiple test cells compose in parallel a test cell group, the fuel tank successively with the oil pump, described
Check valve and the filter are connected, oil inlet and the mistake of all first throttle valves in the test cell group
Filter is connected, and the oil outlet of all second throttle in the test cell group is connected with the fuel tank；It is described unidirectional
The oil inlet of valve is connected with the oil pump, and its oil outlet is connected with the filter；The oil pump is connected with the motor.
Preferably, the first overflow valve is provided on each test cell, the first overflow valve oil inlet setting exists
On pipeline between first master gauge and the test interface, oil outlet and the fuel tank of first overflow valve
It is connected.
Preferably, the manometer testboard based on hydraulic system further includes off-load unit and control unit, described
Off-load unit includes pressure sensor and the second overflow valve, and second overflow valve is connected with the oil pump and the fuel tank, institute
The second overflow valve is stated also to be connected with described control unit；The pressure sensor is arranged between the check valve and the oil pump
Pipeline on, and be connected with described control unit.
Preferably, the manometer testboard based on hydraulic system further includes refrigerating plant, the refrigerating plant packet
Include air cooler and temperature sensor, the air cooler setting is in first overflow valve, second overflow valve and described the
Between the oil outlet of two throttle valves and the fuel tank oil inlet, the air cooler is also connected with described control unit；The temperature
Sensor is arranged at the oil inlet of the air cooler, and is connected with described control unit.
Preferably, second master gauge is additionally provided on the pipeline between the check valve and the filter.
Preferably, the motor is servo motor.
Preferably, the test interface is quick union.
Preferably, it is provided with regulating hand wheel of pressure in the second throttle.
In the technical solution of the utility model, the hydraulic oil in hydraulic system is pumped from fuel tank to test cell through oil pump
Group is provided with first throttle valve on the test cell in test cell group, by the way that the size of first throttle valve pressure is arranged, makes not
It is different with the pressure value on test cell, barometric gradient is formed, when test verifies manometer, according to the pressure of manometer
Value selects the interface on corresponding test cell to carry out test verification, improves the test checking precision of manometer.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic diagram of manometer testboard of one embodiment of the utility model based on hydraulic system；
Drawing reference numeral explanation：
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction of institute in the utility model embodiment（Such as up, down, left, right, before and after ...）
It is only used for explaining in a certain particular pose（As shown in the picture）Under relative position relation, motion conditions etc. between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is instruction or implies its relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.It is " more in the description of the present invention,
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, also may be used
To be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of manometer testboard based on hydraulic system.
Please refer to Fig. 1, a kind of manometer testboard based on hydraulic system comprising fuel tank 1, oil pump 2, motor 3, list
To valve 4, filter 5 and test cell 6；Test cell 6 includes the first master gauge 61, the throttling of first throttle valve 62, second
Valve 63 and test interface 64；The oil outlet of first throttle valve 62 is connected with the oil inlet of second throttle 63, first throttle valve 62
The first master gauge 61 and test interface 64 are disposed on pipeline between second throttle 63；Multiple test cells
6 compose in parallel a test cell group, and fuel tank 1 is connected with oil pump 2, check valve 4 and filter 5 successively, in test cell group
The oil inlets of all first throttle valves 62 be connected with filter 5, all second throttle 63 in test cell group it is fuel-displaced
Mouth is connected with fuel tank 1；The oil inlet of check valve 4 is connected with oil pump 2, and its oil outlet is connected with filter 5；Oil pump 2 and motor 3
It is connected.
In the technical solution of the utility model, the hydraulic oil in hydraulic system is pumped from fuel tank 1 to test list through oil pump 2
Tuple is provided with first throttle valve 62 on the test cell 6 in test cell group, passes through and the big of 62 pressure of first throttle valve is arranged
It is small, keep the pressure value on different test cells 6 different, form barometric gradient, when test verifies manometer, according to Instrument for Pressure
The pressure value of table selects the test interface 64 on corresponding test cell 6 to carry out test verification, when the pressure of tested manometer
When power range is smaller, the test interface 64 corresponding to the smaller test cell 6 of 6 pressure value of test cell can be selected and carry out test school
It tests, when the pressure limit of tested manometer is larger, can be selected corresponding to the larger test cell 6 of 6 pressure value of test cell
Test interface 64 carries out test verification, and then improves the debugging checking precision to tested manometer.Several test cells 6
Multiple manometers can be met while test verification by composing in parallel 6 groups of test cell, effectively increase the efficiency of test verification, together
When each test cell 6 on 64 size of test interface, model can be inconsistent, expand the model to manometer test verification
It encloses, keeps the function of testboard more complete.
The setting of second throttle 63 keeps the verification range of the pressure test in test cell 6 adjustable since 0, can meet
It tests in checking procedure, test verification is improved to the multi-point sampler of maximum pressure value since 0 to tested manometer
Accuracy.First master gauge 61 is high-class pressure gauge, the first master gauge 61 and tested manometer
Test same pressure value, the show value of the first master gauge 61 is compared with tested manometer, to manometer into
Row test verification.
In start and stop or the failure of testboard, check valve 4 can prevent hydraulic oil from flowing backwards, effective protection testboard, extend
Its service life.
Hydraulic oil in use, has impurity and participates in wherein, and impurity can influence the use of hydraulic component, also can shadow
The test checking precision for ringing testboard, by filter 5 by the contaminant filter in hydraulic oil, it is ensured that enter the liquid in hydraulic circuit
Pressure oil totally cleans, and can both extend the service life of hydraulic component, and test checking precision also can be improved.
Preferably, the first overflow valve 7 is provided on each test cell 6, the setting of 7 oil inlet of the first overflow valve is in the first mark
On pipeline between quasi- pressure gauge 61 and test interface 64, the oil outlet of the first overflow valve 7 is connected with fuel tank 1.In test cell 6
Middle hydraulic pressure value is since failure and other reasons cause hydraulic pressure value higher, the inaccuracy that debugging will be caused to verify, while excessively high pressure
Value will influence the service life of hydraulic component, carries out off-load to excessively high pressure value by the first overflow valve 7, debugging can be improved
The precision of verification, while playing a protective role to hydraulic component, so that the pressure value in test cell 6 is no more than this default most
High pressure values.
The manometer testboard for being preferably based on hydraulic system further includes off-load unit 8 and control unit 9, off-load list
Member 8 includes pressure sensor 81 and the second overflow valve 82, and the second overflow valve 82 is connected with oil pump 2 and fuel tank 1, the second overflow valve 82
Also it is connected with control unit 9；Pressure sensor 81 is arranged on the pipeline between check valve 4 and oil pump 2, and with control unit 9
It is connected.Pressure sensor 81 obtain hydraulic circuit in hydraulic pressure value, control unit 9 obtain hydraulic pressure value and according to this hydraulic pressure value to
Second overflow valve 82 sends out control instruction, and when the pressure value in hydraulic circuit is excessively high, off-load is carried out to circuit, entire to ensure
The normal use of testboard hydraulic system.Control unit 9 controls the maximal pressure force value of the second overflow valve 82, makes in hydraulic circuit
Hydraulic pressure value is no more than this maximal pressure force value.
The manometer testboard for being preferably based on hydraulic system further includes refrigerating plant 10, and refrigerating plant 10 includes sky
Cooler 102 and temperature sensor 101, air cooler 102 are arranged in the first overflow valve 7, the second overflow valve 82 and second throttle
Between 63 1 oil inlet of oil outlet and fuel tank, air cooler 102 is also connected with control unit 9；Temperature sensor 101 is arranged in sky
At the oil inlet of cooler 102, and it is connected with control unit 9.Hydraulic oil in hydraulic system all flows back to oil by air cooler 102
Case 1 is provided with temperature sensor 101 at the oil inlet of air cooler 102, and temperature sensor 101 is connected with control unit 9, control
Unit 9 obtains 101 collected temperature information of temperature sensor, and sends out control instruction to air cooler 102 according to temperature information,
Hydraulic oil is cooled to optimum temperature by air cooler 102 according to control instruction, and the temperature for flowing back to the hydraulic oil of fuel tank 1 is made to be maintained at one
A optimum temperature, optimum temperature are set according to the quality of hydraulic oil and the requirement of testboard.Hydraulic oil remains at one most
Good temperature can improve the precision of manometer test verification, and can not be influenced and long-time work by hydraulic fluid temperature
Make, improves work efficiency.
The second master gauge 11 is additionally provided on pipeline between check valve 4 and filter 5.Second master gauge 11
Pressure value total in hydraulic circuit is tested and shows, convenient for grasping hydraulic pressure conditions in hydraulic circuit, convenient for regulation and control in time.
Preferably, motor 3 is servo motor 3.Servo motor 3 is energy-efficient, can effectively save the energy.
Test interface 64 is quick union.Quick union can realize the quick connection of interface and manometer, effectively improve
Working efficiency.
It is provided with regulating hand wheel of pressure in second throttle 63.Regulating hand wheel of pressure is conveniently adjusted the pressure of second throttle 63, treats
The manometer of survey carries out multi-point sampler.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Under the design of the utility model, equivalent structure transformation made based on the specification and figures of the utility model, or directly/
Indirectly other related technical areas are used in be included in the scope of patent protection of the utility model.
Claims (8)
1. a kind of manometer testboard based on hydraulic system, which is characterized in that including fuel tank, oil pump, motor, check valve,
Filter and test cell；The test cell connects including the first master gauge, first throttle valve, second throttle and test
Mouthful；The oil outlet of the first throttle valve is connected with the oil inlet of the second throttle, the first throttle valve and described
First master gauge and the test interface are disposed on pipeline between two throttle valves；Multiple tests are single
Member composes in parallel a test cell group, and the fuel tank is connected with the oil pump, the check valve and the filter successively,
The oil inlet of all first throttle valves in the test cell group is connected with the filter, in the test cell group
The oil outlets of all second throttle be connected with the fuel tank；The oil inlet of the check valve is connected with the oil pump,
And its oil outlet is connected with the filter；The oil pump is connected with the motor.
2. the manometer testboard based on hydraulic system as described in claim 1, which is characterized in that each test is single
The first overflow valve is provided in member, the first overflow valve oil inlet setting connects in first master gauge and the test
On pipeline between mouthful, the oil outlet of first overflow valve is connected with the fuel tank.
3. the manometer testboard based on hydraulic system as claimed in claim 2, which is characterized in that described to be based on hydraulic pressure system
The manometer testboard of system further includes off-load unit and control unit, and the off-load unit includes that pressure sensor and second are overflow
Flow valve, second overflow valve is connected with the oil pump and the fuel tank, second overflow valve also with described control unit phase
Even；The pressure sensor is arranged on the pipeline between the check valve and the oil pump, and is connected with described control unit.
4. the manometer testboard based on hydraulic system as claimed in claim 3, which is characterized in that described to be based on hydraulic pressure system
The manometer testboard of system further includes refrigerating plant, and the refrigerating plant includes air cooler and temperature sensor, described air-cooled
Device is arranged in first overflow valve, the oil outlet and the fuel tank oil inlet of second overflow valve and the second throttle
Between mouthful, the air cooler is also connected with described control unit；The oil inlet in the air cooler is arranged in the temperature sensor
Place, and be connected with described control unit.
5. such as manometer testboard of the claim 2-4 any one of them based on hydraulic system, which is characterized in that the list
The second master gauge is additionally provided on the pipeline between valve and the filter.
6. such as manometer testboard of the claim 2-4 any one of them based on hydraulic system, which is characterized in that the electricity
Machine is servo motor.
7. such as manometer testboard of the claim 2-4 any one of them based on hydraulic system, which is characterized in that the survey
Mouth of trying is quick union.
8. such as manometer testboard of the claim 2-4 any one of them based on hydraulic system, which is characterized in that described the
It is provided with regulating hand wheel of pressure on two throttle valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820241368.0U CN207881888U (en) | 2018-02-11 | 2018-02-11 | Manometer testboard based on hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820241368.0U CN207881888U (en) | 2018-02-11 | 2018-02-11 | Manometer testboard based on hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207881888U true CN207881888U (en) | 2018-09-18 |
Family
ID=63498726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820241368.0U Active CN207881888U (en) | 2018-02-11 | 2018-02-11 | Manometer testboard based on hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207881888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112295A (en) * | 2022-07-01 | 2022-09-27 | 北京亚华物联科技发展有限公司 | Pressure instrument testing device and testing method |
-
2018
- 2018-02-11 CN CN201820241368.0U patent/CN207881888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112295A (en) * | 2022-07-01 | 2022-09-27 | 北京亚华物联科技发展有限公司 | Pressure instrument testing device and testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104634578B (en) | Aviation turbocharging internal-combustion engines full ambient engine altitude test system and test method | |
| CN113339309B (en) | Fuel cell air compressor testing system and method | |
| CN107014240B (en) | A kind of cooling tower cooling efficiency monitoring method and system | |
| CN110082086A (en) | The test platform and test method of hydrogen fuel cell air feed equipment | |
| CN207881888U (en) | Manometer testboard based on hydraulic system | |
| CN104897475B (en) | Temperature cycles Fast implementation and device thereof in rock-fill material weathering triaxial test | |
| CN111502972A (en) | Testing device for fuel cell air system | |
| CN205327441U (en) | Aircraft fuel oil system's testing arrangement under simulated high -altitude environment | |
| CN105486511A (en) | Debug method of state parameters of test bed | |
| CN110671219A (en) | Method and system for controlling air-fuel ratio of gas engine | |
| CN110332826A (en) | Based on SAPMAC method marine gas turbine seawater heat exchanger between fixed temperature blending system | |
| CN203688224U (en) | Engine driven air pressure system high altitude simulation tester | |
| CN116646562A (en) | Testing device for hydrogen subsystem of fuel cell | |
| CN110542559A (en) | Cold water temperature control system in engine | |
| CN214533199U (en) | V-shaped engine airflow pressure stabilizing system | |
| CN106126858A (en) | A kind of method of fan type selecting in electrokinetic cell air cooling system | |
| CN108953204A (en) | Pipeline compressor performance test method and system | |
| CN109813552A (en) | Engine radiating capability evaluation test method | |
| CN210664009U (en) | Indirect cooling circulation marine gas turbine seawater heat exchanger based on constant temperature mixing system | |
| CN103411777B (en) | Cylinder block flow resistance measurement system | |
| CN103926098A (en) | Adjusting method for cooling-water machine load varying system and cooling-water machine load varying system | |
| CN210178681U (en) | Hydraulic motor actuator with adjustable damping | |
| CN113851674A (en) | Thermal management system for testing fuel cell system | |
| CN208518793U (en) | Compact engine fuel oil temperature control device | |
| CN102252809A (en) | Method for diagnosing state of flow path shaft seal system of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |