CN208520523U - A kind of calibrating installation of dynamic pressure measurement little differential pressure sensor - Google Patents
A kind of calibrating installation of dynamic pressure measurement little differential pressure sensor Download PDFInfo
- Publication number
- CN208520523U CN208520523U CN201821117155.3U CN201821117155U CN208520523U CN 208520523 U CN208520523 U CN 208520523U CN 201821117155 U CN201821117155 U CN 201821117155U CN 208520523 U CN208520523 U CN 208520523U
- Authority
- CN
- China
- Prior art keywords
- differential pressure
- pressure sensor
- valve
- little differential
- branch pipe
- 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
The utility model discloses a kind of calibrating installations of dynamic pressure measurement little differential pressure sensor, including pneumatic supply, the snorkel being connected on pneumatic supply, snorkel nozzle is equipped with triple valve, drying device is equipped between pneumatic supply and triple valve, the snorkel of drying device to triple valve is equipped with pressure regulator valve, adjust flowmeter, triple valve has the first valve port of connection absolute pressure sensor, connect the second valve port of differential pressure indicator and the third valve port equipped with the third branch pipe for connecting little differential pressure sensor, device further includes insulating box, for acquiring the controller of little differential pressure sensor signal, pneumatic supply, pressure regulator valve, adjust flowmeter, triple valve, absolute pressure sensor, differential pressure indicator is connected with controller, triple valve, each branch pipe, absolute pressure sensor, differential pressure indicator is set in insulating box.The utility model can guarantee calibration accuracy, improve calibration efficiency using the testing calibration that gas realizes little differential pressure sensor in an automated manner under isoperibol, through controller is continued drying out.
Description
Technical field
The utility model relates to a kind of calibrating installations of dynamic pressure measurement little differential pressure sensor.
Background technique
Little differential pressure sensor is the sensor for measuring the slight pressure difference of a certain equipment or component rear and front end, because of energy
Various high-acruracy surveys are carried out to be widely used in the every field of modern industrial production.In the prior art, dynamic elementary errors
Pressure sensor be exactly need on continuous gas source come premised on uninterrupted pressure is provided, be just capable of measuring to obtain the differential pressure of pressure difference
Sensor, therefore, the gas source of continuous-stable must be provided by calibrating this kind of little differential pressure sensor, currently, conventional calibration operation considers
Reading to little differential pressure sensor can generate variation because of the difference of atmospheric pressure, and big more options cooperate its range ability, output pressure
The lesser hand-held minute-pressure pump of power is passed through gas into absolute pressure gauge, differential pressure indicator and little differential pressure sensor to be detected respectively, leads to
It crosses after manual measurement records each reading and is manually entered computer, elementary errors is calculated according to each reading in computer-internal program
Error amount existing for pressure sensor is simultaneously calibrated according to the error amount, but has the disadvantage that calibration process is time-consuming in this way
Arduously, the degree of automation is low, and there are certain difficulties for calibrating operation, and since little differential pressure sensor is with dry or moist gas source
When being calibrated under different temperatures environment, reading can change because of different gas densities, cause calibration accuracy low,
In addition to this, hand-held minute-pressure pump, which can only generally give fixed pressure, can not but provide continuous gas source, therefore be unable to satisfy dynamic
The calibration requirements of state little differential pressure sensor.
Summary of the invention
The technical issues of the utility model solves is to provide a kind of calibration cartridge of dynamic pressure measurement little differential pressure sensor
It sets.
The technical solution of the utility model is: a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor, including
The pneumatic supply of pressure is persistently provided, the snorkel for output gas, the nozzle of the snorkel are connected on the pneumatic supply
The drying device for dry gas is equipped with equipped with the triple valve for shunting, between the pneumatic supply and triple valve, it is described logical
The direction of self-desiccation device to triple valve is successively arranged the pressure regulator valve for controlling output pressure and is used for further on tracheae
Detection and the adjusting flowmeter for adjusting output pressure, the triple valve has the first valve port, the second valve port and third valve port, described
First valve port is equipped with the first branch pipe and connects the absolute pressure sensor for measuring absolute pressure by first branch pipe, and described the
Two valve ports are equipped with the second branch pipe and connect the differential pressure indicator for measuring actual pressure, the third valve port by second branch pipe
Equipped with the third branch pipe for connecting little differential pressure sensor, described device further includes insulating box and passes for acquiring differential pressure
The controller of sensor signal, the pneumatic supply, adjust flowmeter, triple valve, absolute pressure sensor, differential pressure indicator and institute at pressure regulator valve
It states controller to be connected, the triple valve, each branch pipe, absolute pressure sensor, differential pressure indicator are set in the insulating box.
Further, pneumatic supply described in the utility model is minisize air lift pump.
Further, drying device described in the utility model is dried-air drier.
Further, it is equipped between pneumatic supply described in the utility model and the drying device and is connected with the controller
To control the shut-off valve of gas circulation.
Further, triple valve described in the utility model is three-way solenoid valve.
Further, the Temperature Humidity Sensor being connected with the controller is equipped in insulating box described in the utility model.
Further, controller described in the utility model is connected with operating display.
Compared with the prior art, the utility model has the following advantages:
1) in the utility model, continue output pressure, particular design on snorkel using minisize air lift pump as pneumatic supply
Pressure regulator valve output pressure can be down in the range ability of little differential pressure sensor first, cooperation adjusts flowmeter then can be into
One step detects and controls the size of output pressure, and gas in pipe can be divided into three tunnels and right by the triple valve of snorkel nozzle design
Absolute pressure sensor, differential pressure indicator and little differential pressure sensor to be detected should be entered；In view of the gas by little differential pressure sensor
The influence of body and ambient temperature to little differential pressure sensor, designed for the dry of dry gas between pneumatic supply and triple valve
The gas of dry device, pneumatic supply output is dried by drying device and is reused after pressure regulator valve, adjusting flowmeter pressure regulation, while
Absolute pressure sensor, differential pressure indicator, little differential pressure sensor to be detected exterior design insulating box, thus, it is possible to avoid in detection process by
The influence of wet gas and ambient temperature；This calibrating installation can be using uninterrupted dry gas in isoperibol
Under, realize by controller the detection and calibration of little differential pressure sensor in an automated manner, without manually recording data,
It is time saving and energy saving, guarantee to improve calibration efficiency while calibration accuracy.
2) in the utility model, the Temperature Humidity Sensor of particular design being capable of Temperature Quantity in real-time detection insulating box and wet
Measurement, plays the role of monitoring to the detection environment of absolute pressure sensor, differential pressure indicator, little differential pressure sensor to be detected, further protects
Demonstrate,prove calibration accuracy.
3) in the utility model, the operating display that is connected on controller convenient for testing staff control testing calibration into
Degree can intuitively show every detection data simultaneously, provide convenience for the calibrating operation of testing staff.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1, minisize air lift pump；2, triple valve；2a, the first branch pipe；2b, the second branch pipe；2c, third branch pipe；3, absolute pressure
Sensor；4, differential pressure indicator；5, little differential pressure sensor；6, pressure regulator valve；7, flowmeter is adjusted；8 insulating boxs；9, dried-air drier；10,
Shut-off valve.
Specific embodiment
Embodiment:
A kind of tool of the calibrating installation of dynamic pressure measurement little differential pressure sensor of the utility model is shown in conjunction with attached drawing
Body embodiment, firstly, including persistently providing the pneumatic supply of pressure, the pneumatic supply is minisize air lift pump 1, the micro pressure
It is connected with snorkel for output gas on pump 1, the nozzle of the snorkel is equipped with the triple valve 2 for shunting, and described three
Port valve 2 is three-way solenoid valve.
The drying device for dry gas is equipped between the minisize air lift pump 1 and triple valve 2, the drying device is
Dried-air drier 9 is successively arranged for controlling output pressure on the snorkel from dried-air drier 9 to the direction of triple valve 2
Pressure regulator valve 6 and adjusting flowmeter 7 for further detecting and adjusting output pressure.
As shown, the triple valve 2 has the first valve port, the second valve port and third valve port, first valve port is equipped with
First branch pipe 2a and by the first branch pipe 2a connection for measuring the absolute pressure sensor 3 of absolute pressure, second valve port
Equipped with the second branch pipe 2b and by the second branch pipe 2b connection for measuring the differential pressure indicator 4 of actual pressure, the third valve port
Equipped with the third branch pipe 2c for connecting little differential pressure sensor 5.
Secondly, described device further includes insulating box 8 and the controller for acquiring 5 signal of little differential pressure sensor, it is described
It is equipped with and is connected with the controller to control the shut-off valve 10 of gas circulation between minisize air lift pump 1 and the dried-air drier 9.
The triple valve 2, the first branch pipe 2a, the second branch pipe 2b, third branch pipe 2c, absolute pressure sensor 3, differential pressure indicator 4 are all provided with
In in the insulating box 8, and the Temperature Humidity Sensor being connected with the controller is additionally provided in the insulating box 8.
The minisize air lift pump 1, adjusts flowmeter 7, triple valve 2, absolute pressure sensor 3, differential pressure indicator 4 and institute at pressure regulator valve 6
It states controller to be connected, and the controller is also connected with operating display.
When the present embodiment specific works, little differential pressure sensor 5 to be detected is connected with third branch pipe 2c, in insulating box 8
Temperature Humidity Sensor by real-time detection to Temperature Quantity and humidity amount be sent to controller and shown by operating display, from
And real-time monitoring can be carried out to detection environment, when detection, controller is according to the signal enabling minisize air lift pump 1 of operating display
Continue output pressure, open simultaneously shut-off valve 10, gas enters in dried-air drier 9 via snorkel first goes moisture removal to obtain
Dry gas, triple valve 2 is in the open state after the enabled instruction for receiving controller, and then controller is sent out to pressure regulator valve 6
Work order is out output pressure to be down in the range ability of little differential pressure sensor 5, and then issues work to flowmeter 7 is adjusted
It instructs further to detect and control the size of output pressure, it is three that the dry gas in snorkel, which is finally divided via triple valve 2,
Road respectively enters absolute pressure sensor 3, differential pressure indicator 4 and little differential pressure sensor 5 in insulating box 8, and controller is passed according to absolute pressure
Error amount existing for little differential pressure sensor 5 is calculated simultaneously in the reading that sensor 3, differential pressure indicator 4 and little differential pressure sensor 5 generate
Little differential pressure sensor 5 is calibrated automatically according to the error amount, and after the completion of calibration, testing staff replaces little differential pressure sensor 5 and carries out down
Primary calibration operation.This calibrating installation can utilize uninterrupted dry gas under isoperibol, pass through controller
The detection and calibration of little differential pressure sensor 5 are realized in an automated manner, it is time saving and energy saving without manually recording data, it protects
Calibration efficiency is improved while demonstrate,proving calibration accuracy.
Certainly the above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with this
The people of technology can understand the content of the utility model and implement accordingly, and the protection model of the utility model can not be limited with this
It encloses.Any modifications made in accordance with the spirit of the main technical solutions of the utility model should all cover the guarantor in the utility model
Within the scope of shield.
Claims (7)
1. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor provides the pneumatic supply of pressure, spy including lasting
Sign is: the snorkel for output gas is connected on the pneumatic supply, the nozzle of the snorkel is equipped with for shunting
Triple valve (2) is equipped with the drying device for dry gas between the pneumatic supply and triple valve (2), on the snorkel from
The direction of drying device to triple valve (2) is successively arranged the pressure regulator valve (6) for controlling output pressure and examines for further
The adjusting flowmeter (7) of output pressure is surveyed and adjusts, the triple valve (2) has the first valve port, the second valve port and third valve port,
First valve port is equipped with the first branch pipe (2a) and connects the absolute pressure for measuring absolute pressure by first branch pipe (2a)
Sensor (3), second valve port are equipped with the second branch pipe (2b) and connect by second branch pipe (2b) for measuring reality
The differential pressure indicator (4) of pressure, the third valve port are equipped with the third branch pipe (2c) for connecting little differential pressure sensor (5), the dress
Set further includes insulating box (8) and the controller for acquiring little differential pressure sensor (5) signal, the pneumatic supply, pressure regulator valve
(6), adjusting flowmeter (7), triple valve (2), absolute pressure sensor (3), differential pressure indicator (4) are connected with the controller, and described three
Port valve (2), each branch pipe, absolute pressure sensor (3), differential pressure indicator (4) are set in the insulating box (8).
2. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor according to claim 1, it is characterised in that:
The pneumatic supply is minisize air lift pump (1).
3. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor according to claim 1, it is characterised in that:
The drying device is dried-air drier (9).
4. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor according to claim 1, it is characterised in that:
It is equipped with and is connected with the controller to control the shut-off valve (10) of gas circulation between the pneumatic supply and the drying device.
5. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor according to claim 1, it is characterised in that:
The triple valve (2) is three-way solenoid valve.
6. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor according to claim 1, it is characterised in that:
The Temperature Humidity Sensor being connected with the controller is equipped in the insulating box (8).
7. a kind of calibrating installation of dynamic pressure measurement little differential pressure sensor according to claim 1, it is characterised in that:
The controller is connected with operating display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821117155.3U CN208520523U (en) | 2018-07-13 | 2018-07-13 | A kind of calibrating installation of dynamic pressure measurement little differential pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821117155.3U CN208520523U (en) | 2018-07-13 | 2018-07-13 | A kind of calibrating installation of dynamic pressure measurement little differential pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520523U true CN208520523U (en) | 2019-02-19 |
Family
ID=65335834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821117155.3U Active CN208520523U (en) | 2018-07-13 | 2018-07-13 | A kind of calibrating installation of dynamic pressure measurement little differential pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520523U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398316A (en) * | 2019-08-23 | 2019-11-01 | 山东福瑞德测控系统有限公司 | Differential pressure transmitter and automatic calibrating method for differential pressure transmitter |
| CN110849539A (en) * | 2019-11-27 | 2020-02-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Calibration device for pressure measurement system with tube cavity |
| CN115060414A (en) * | 2022-08-17 | 2022-09-16 | 成都凯天电子股份有限公司 | Device and method for providing high-precision pressure standard |
-
2018
- 2018-07-13 CN CN201821117155.3U patent/CN208520523U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398316A (en) * | 2019-08-23 | 2019-11-01 | 山东福瑞德测控系统有限公司 | Differential pressure transmitter and automatic calibrating method for differential pressure transmitter |
| CN110849539A (en) * | 2019-11-27 | 2020-02-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Calibration device for pressure measurement system with tube cavity |
| CN110849539B (en) * | 2019-11-27 | 2021-04-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | Calibration device for pressure measurement system with tube cavity |
| CN115060414A (en) * | 2022-08-17 | 2022-09-16 | 成都凯天电子股份有限公司 | Device and method for providing high-precision pressure standard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208520523U (en) | A kind of calibrating installation of dynamic pressure measurement little differential pressure sensor | |
| CN202770606U (en) | Ventilation air-conditioning system air leakage automatic testing device | |
| CN203259458U (en) | Calibrating system for infrared methane sensor | |
| US9429493B2 (en) | Manifold assembly for a portable leak tester | |
| CN107966235A (en) | A kind of high-precision pressure measuring system of variable reference pressure | |
| CN104280069A (en) | Wind pressure and blowing rate testing device and method | |
| CN201247254Y (en) | Automatic detection device for wind sensor of automatic meteorological station | |
| CN107677317A (en) | Flue dust gas sampling comprehensive detection system | |
| CN101799351A (en) | Leakage detection method and system thereof | |
| CN208060103U (en) | A kind of exhaust system quantity of gas leakage detection device | |
| CN207991747U (en) | A kind of full-automatic pressure sensor batch detection calibration console | |
| CN105258914B (en) | A kind of low-speed wind tunnel flow field test micro-pressure measurement system | |
| CN109445493B (en) | Temperature, humidity and dew point generator, control system and test method thereof | |
| CN202149889U (en) | Intelligent resistance-capacitance type dew point instrument with high precision | |
| CN218585204U (en) | Automatic pressure calibration and measurement device | |
| CN110702307A (en) | Method for testing pressure parameters of multi-channel sensor | |
| CN104374438A (en) | Gas flow detection device and method for light gas turbine combustion chamber nozzle | |
| CN217180154U (en) | Multi-channel gas sampling and measuring system capable of independently adjusting flow | |
| CN206073945U (en) | Coning angle pneumoelectric measuring instrument | |
| CN202101677U (en) | Comprehensive calibrator for atmosphere data | |
| CN210894185U (en) | Quick dew point measuring device | |
| CN109946125B (en) | Dry-wet ball method gas temperature and humidity sampling device | |
| CN210135981U (en) | Flow and wind speed sensor calibration device | |
| CN110243444B (en) | Negative pressure source device, gas meter verification gas circuit system and verification method | |
| CN206557192U (en) | A kind of medical ozone concentration detection apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |