CN109655257A - A kind of portable tank vehicle constant pressure tank body breather valve calibration equipment - Google Patents
A kind of portable tank vehicle constant pressure tank body breather valve calibration equipment Download PDFInfo
- Publication number
- CN109655257A CN109655257A CN201910053169.6A CN201910053169A CN109655257A CN 109655257 A CN109655257 A CN 109655257A CN 201910053169 A CN201910053169 A CN 201910053169A CN 109655257 A CN109655257 A CN 109655257A
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- signal
- pressure
- valve
- module
- breather valve
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The present invention relates to a kind of portable tank vehicle constant pressure tank body breather valve calibration equipments, comprising: gas circuit control unit, signal conditioning module, signal acquisition module, signal processing module and signal display module.The present invention can be verified in air outlet valve and intake valve pressure of the tank car periodic inspection scene to breather valve, outlet and air inlet pressure the force value real-time display on charactron or liquid crystal display, maximum pressure value and minimum pressure values are shown respectively at the end of verification, and can be to the variation of pressure carries out whole record in gas circuit where breather valve in checking procedure, record data can upload to computer by serial ports or be sent to tablet computer based on Android operation system by WIFI and mobile phone is stepped in mobile device.
Description
Technical field
The invention belongs to mobile tank car breather valve calibration technology fields, and in particular to a kind of portable road transport is dangerous
Cargo tank vehicle constant pressure tank body breather valve calibration equipment.
Background technique
To prevent inside portable tank vehicle tank since gas pressure change gives tank body bring destruction, it is necessary in tank
Breather valve is installed on body.When filling medium into tank, when gas pressure increases to breather valve setting limit pressure in tank, outlet
Valve automatically opens releasing gas.When the extraction medium to outside tank, when gas pressure is decreased to breather valve setting limit pressure in tank,
Vacuum valve opening sucks air, and oil tank is prevented to be flattened due under negative pressure state.GB.T18564.1-2006 road transport
Liquid hazardous cargo tank vehicle part 1: metal constant pressure tank body technical requirements 5.5.2.10 regulation, the air outlet valve of breather valve are answered
It is opened when pressure inside the tank is higher than ambient pressure 6kPa-8 kPa, intake valve should be lower than ambient pressure 2kPa-3 in pressure inside the tank
It is opened when kPa.
Existing breather valve calibration equipment is commonly fixed breather valve verification platform, and volume is big, needs to compress by air
The devices such as machine, vacuum pump, gas cylinder are realized, mobile inconvenient, scene cannot be examined to carry out breather valve verification in tank car.It can only will breathe
Valve is sent to laboratory after removing from tank car and is verified, and significantly reduces the verification efficiency of breather valve.Lacking at present can be with
The Portable breather valve calibration equipment at scene is examined applied to tank car.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of portable tank vehicle constant pressure tank body breather valve verification dresses
It sets, can be verified in air outlet valve and intake valve pressure of the tank car periodic inspection scene to breather valve, outlet and admission pressure
Value real-time display on charactron or liquid crystal display, shows maximum pressure value and minimum pressure at the end of verification respectively
Value, and can be to the variation of pressure carries out whole record in gas circuit where breather valve in checking procedure, record data can pass through string
Mouth uploads to computer or is sent to tablet computer based on Android operation system by WIFI and mobile phone steps on mobile device
On.Which solves the inconvenience for needing to transport laboratory when the verification of traditional breather valve, improve work efficiency.
To solve the above problems, the technical solution adopted by the present invention are as follows:
A kind of portable tank vehicle constant pressure tank body breather valve calibration equipment, comprising: gas circuit control unit, signal conditioning module,
Signal acquisition module, signal processing module and signal display module, in which:
The pressure sensor of the gas circuit control unit is connect with the signal conditioning module, and the pressure sensor output is differential
Voltage signal is organized into analog voltage signal by the amplification and filtering processing of signal conditioning module；
The signal acquisition module is connected with the signal conditioning module, the simulation for exporting the signal conditioning module
Signal is converted into digital signal；
The signal processing module is connect with the signal acquisition module, and the signal processing module is adopted for receiving the signal
Collect the digital signal that module is sent, the pressure size that pressure sensor detects is judged, by data transfer to signal display module.
Further, further includes: pressure source, the pressure source is connected with the gas circuit control unit, for verifying
It is inflated and is evacuated in journey.
Further, the pressure source includes: the blowing pressure source and suction pressure source, be respectively used to breather valve air outlet valve and
Intake valve pressure checking；
The blowing pressure source includes: inflator pump and high-pressure pump；
The suction pressure source includes: aspiration pump and high pressure pump bowl.
Further, the signal conditioning module includes filter circuit and signal amplification circuit.
Further, the signal acquisition module includes AD conversion chip and its support circuit.
Further, the signal processing module includes processor chips and its control circuit.
Further, the processor chips are single-chip microcontroller or ARM chip system.
Further, the signal display module includes liquid crystal display and charactron.
Further, the gas circuit control unit includes inlet suction port, check valve, shut-off valve, mechanical pressure gauge, pressure sensing
Device, storage cylinder, breathing valve union, overflow valve, shut-off valve, check valve, air extraction connector.
Further, further includes: data processing module, the data processing module include: including serial communication circuit and
GPRS wireless sending module, for carrying out wired and wireless communication.
The beneficial effects of the present invention are:
(1) it is heavy to solve existing breather valve calibration equipment equipment, it is inconvenient to carry, it is unsuitable at tank car periodic inspection scene to exhaling
Inhale the problem of valve is verified.
(2) a set of pressure-detecting device being made of mechanical pressure gauge and pressure sensor is used, smaller gas storage is used
Tank, inflation and pumping, all using miniaturization portable equipment, easily facilitate movement with gas source.
(3) the breathing valve union being connected on storage cylinder by replacement, can be adapted for the scene of multiple types breather valve
Verification.
(4) two sets of pressure monitoring systems of mechanical pressure gauge and pressure sensor are equipped with simultaneously, mechanical pressure gauge can be real
When show breather valve pressure checking situation, it is relatively more intuitive, but can not accurately read pressure, at the same the air outlet valve of breather valve and into
Air valve opens moment, and transient change occurs in pressure, only is difficult to determine accurate pressure value by eyes observation.The survey of pressure sensor
Amount result is finally shown by processing of circuit in signal display module with digital quantity, while being also equipped with and being recorded minimum and maximum inspection
The function of measuring pressure, the pressure change in whole recording respiration valve checking procedure provide quantization knot convenient for the verification to breather valve
Fruit.
(5) present apparatus can greatly promote the verification efficiency of mobile tank car breather valve, reduce inspection cost, be tied by quantization
Fruit can more easily determine out the superiority and inferiority of breather valve quality, improve the level of security of entire tank body.
Detailed description of the invention
Fig. 1 is gas circuit schematic diagram of the invention.
Wherein, 1, inlet suction port；2, the first check valve；3, the first shut-off valve；4, mechanical pressure gauge；5, pressure sensor；
6, storage cylinder；7, valve union is breathed；8, overflow valve；9, the second shut-off valve；10, second one-way valve；11, air extraction connector.
Fig. 2 is structural schematic diagram of the invention.
Fig. 3 is signal conditioning module circuit diagram of the invention.
Fig. 4 is signal acquisition module circuit diagram of the invention.
Fig. 5 is signal processing of the invention and display module circuit diagram.
Fig. 6 is data recordin module RS232 serial communication circuit figure of the invention.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in further detail.It note that the embodiments described below is exemplary, for explaining only the invention, and
It is not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to the literature in the art institute
The technology or conditions of description are carried out according to product description.Reagents or instruments used without specified manufacturer, being can
With conventional products that are commercially available.
According to an aspect of the present invention, the present invention provides a kind of portable tank vehicle constant pressure tank body breather valves to verify
Device, Fig. 2 are structural schematic diagram of the invention, as shown in Figure 2, comprising: gas circuit control unit, signal conditioning module, signal are adopted
Collect module, signal processing module and signal display module, in which: the pressure sensor and the signal of the gas circuit control unit
Conditioning module connection, the pressure sensor output differential voltage signal, by the amplification and filtering processing of signal conditioning module,
It is organized into analog voltage signal；The signal acquisition module is connected with the signal conditioning module, is used for the signal tune
The analog signal of reason module output is converted into digital signal；The signal processing module is connect with the signal acquisition module, institute
The digital signal that signal processing module is sent for receiving the signal acquisition module is stated, judges the pressure that pressure sensor detects
Power size, by data transfer to signal display module.
According to a particular embodiment of the invention, the invention also includes pressure source, the pressure source and gas circuit control are single
Member is connected, for being inflated and being evacuated in checking procedure.The pressure source includes: the blowing pressure source and suction pressure
Source is respectively used to the air outlet valve and intake valve pressure checking of breather valve；The blowing pressure source includes: that inflator pump and high pressure are inflated
Cylinder；The suction pressure source includes: aspiration pump and high pressure pump bowl.
According to a particular embodiment of the invention, the signal conditioning module includes filter circuit and signal amplification circuit.Fig. 3
It is shown signal conditioning module circuit diagram of the invention, as shown in figure 3, the port Pl connects the output difference letter of pressure sensor
Number, CC1, CC2, CC4, CC5 are for filtering out high-frequency noise.Amplification chip selects MCP6002, and differential voltage signal passes through filtering,
It is exported after amplification by No. 1 pin of MCP6002.
According to a particular embodiment of the invention, the signal acquisition module includes AD conversion chip and its support circuit.Fig. 4
It is shown signal acquisition module of the invention, as shown in figure 4, the port Port1 is received by signal conditioning module output port Port2
The analog voltage signal of output, the analog signal for exporting signal conditioning module are converted into digital signal, are output to signal
Processing module.Using ADC0804 chip as signal acquisition chip, other chips with Signals collecting function can also be used
Achieve the effect that signal acquisition module.
According to a particular embodiment of the invention, the signal processing module includes processor chips and its control circuit.Institute
Stating processor chips is single-chip microcontroller or ARM chip system.According to a particular embodiment of the invention, the signal display module packet
Include liquid crystal display and charactron.Fig. 5 is signal processing of the invention and display module circuit diagram, as shown in figure 5, signal
Processing module is made of the circuit system of single-chip microcontroller STC89C52,15,16,17 pins and the ADC0804 chip of STC89C52
1,2,3 pins are connected, for controlling the enabled of ADC0804 chip, write signal input and read signal input.STC89C52's
32-39 pin is connected with the 11-18 pin of ADC0804 chip, the transmission for data.28,27,26 pins of STC89C52
It is connected respectively with the pin 0 of tri- charactrons of DS1, DS2, DS3, for controlling the unlatching of three charactrons, STC89C52's
1-8 pin is connected with the 1-8 pin of tri- charactrons of DS1, DS2, DS3, for controlling display result.STC89C52 chip plays
Data storage, the effect compared, at the same need to data to be shown be transferred on tri- charactrons of DS1, DS2, DS3 and shown
Show.
According to a particular embodiment of the invention, the gas circuit control unit includes inlet suction port, check valve, shut-off valve, machine
Tool pressure gauge, pressure sensor, storage cylinder, breathing valve union, overflow valve, shut-off valve, check valve, air extraction connector.Specifically,
One end of inlet suction port is connected with external positive pressure gas source, and the other end is connected with the air inlet of the first check valve, the first check valve
Gas outlet is connected with the first shut-off valve, and the other end of the first shut-off valve is connected with storage cylinder.Air extraction connector and second one-way valve
Gas outlet is connected, and the air inlet of second one-way valve is connected with shut-off valve, and the other end of shut-off valve is connected with one end of overflow valve.It overflows
The other end of stream valve is connected on the pipeline between the first shut-off valve and storage cylinder.Pipe between the first shut-off valve and storage cylinder
Road connects mechanical pressure gauge and pressure sensor simultaneously, for measuring the pressure of entire gas circuit.Breather valve is connected on storage cylinder
Connector, breathes the other end of valve union and breather valve that needs verify is connected.
The device of the invention can be used to verify the air outlet valve and inlet open pressure of breather valve simultaneously.Verify air outlet valve
When cracking pressure, the second shut-off valve is closed, the first shut-off valve is opened, passes through the external positive pressure gas of Special connecting joint at inlet suction port
Small inflatable pump or high-pressure pump can be used in source, and breather valve to be verified is connect with breathing valve union, and overflow valve needs to select
Suitable cracking pressure is selected, selects 15kPa in the present embodiment, prevents from leading to whole system superpressure due to maloperation.Entire gas circuit
After connection, start external positive pressure gas source, start to pressurize, observes the pressure provided in mechanical pressure gauge and signal display module
Numerical value, when air outlet valve is when entire airline pressure is more than that ambient pressure 8kPa is not opened yet, it can be determined that unqualified for air outlet valve.
When air outlet valve is when entire airline pressure is more than that 6 kPa -8kPa range of ambient pressure is opened, air outlet valve is qualified, signal processing mould
Voltage signal of the block by analysis pressure sensor output, the pressure value of the entire gas circuit of real-time display, and shown at the end of verification
The maximum pressure value that air-channel system reaches in entire pressure process is shown.When verifying inlet open pressure, the first cut-off is closed
Valve opens the second shut-off valve, by the external negative pressure gas source of Special connecting joint at air extraction connector, can be used small-sized aspiration pump or
High pressure pump bowl, breather valve to be verified are connect with breathing valve union.After entire air circuit connection, start external negative pressure gas source,
Start to be evacuated, the pressure value provided in mechanical pressure gauge and signal display module is observed, when intake valve is in entire airline pressure
When not opened yet lower than ambient pressure 3kPa, it can be determined that unqualified for intake valve.When intake valve is lower than in entire airline pressure
When 2 kPa -3kPa range of ambient pressure is opened, intake valve is qualified, and signal processing module passes through analysis pressure sensor output
Voltage signal, the pressure value of the entire gas circuit of real-time display, and air-channel system in entire pumping process is shown at the end of verification
The minimum pressure values reached.
According to a particular embodiment of the invention, the invention also includes data processing module, the data processing module packets
It includes: including serial communication circuit and GPRS wireless sending module, for carrying out wired and wireless communication.Fig. 6 is number of the invention
According to logging modle RS232 serial communication circuit figure, as shown in fig. 6, realizing single-chip microcontroller STC89C52 and meter using MAX232 chip
Data communication between calculation machine, the airline pressure that STC89C52 is received, which is transmitted in computer, to be saved, after verification
The curve of airline pressure variation is generated, observes entire checking procedure convenient for user.11 and 12 pins of MAX232 chip respectively with
The 11 of STC89C52 chip are connected with 10 pins, and the other end is connected by J1 connector with computer.Data recordin module can also
To realize data transmission using mobile communication devices such as the communication mode of WIFI and tablet computer and mobile phones.
In conclusion the present invention solves existing breather valve calibration equipment equipment heaviness, and it is inconvenient to carry, it is unsuitable in tank car
The problem of periodic inspection scene verifies breather valve.Using a set of pressure being made of mechanical pressure gauge and pressure sensor
Detection device, using smaller air accumulator, inflation and pumping all use miniaturization portable equipment with gas source, easily facilitate movement.
By replacing the breathing valve union being connected on storage cylinder, it can be adapted for the field-checking of multiple types breather valve.Match simultaneously
It can be with real-time display breather valve pressure school for two sets of pressure monitoring systems of mechanical pressure gauge and pressure sensor, mechanical pressure gauge
Situation is tested, it is relatively more intuitive, but pressure can not be accurately read, while opening moment, pressure in the air outlet valve of breather valve and intake valve
There is transient change, only is difficult to determine accurate pressure value by eyes observation.The measurement result of pressure sensor passes through at circuit
Reason is finally shown in signal display module with digital quantity, while being also equipped with the function of recording minimum and maximum detection pressure, entirely
Pressure change in journey recording respiration valve checking procedure, provides quantized result convenient for the verification to breather valve.The present apparatus can be big
The big verification efficiency for promoting mobile tank car breather valve, reduces inspection cost, can be more easily determined out and be breathed by quantized result
The superiority and inferiority of valve quality improves the level of security of entire tank body.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion 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 one or more of the features.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, at the same time, for those skilled in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.
Claims (10)
1. a kind of portable tank vehicle constant pressure tank body breather valve calibration equipment characterized by comprising gas circuit control unit,
Signal conditioning module, signal acquisition module, signal processing module and signal display module, in which:
The pressure sensor of the gas circuit control unit is connect with the signal conditioning module, and the pressure sensor output is differential
Voltage signal is organized into analog voltage signal by the amplification and filtering processing of signal conditioning module；
The signal acquisition module is connected with the signal conditioning module, the simulation for exporting the signal conditioning module
Signal is converted into digital signal；
The signal processing module is connect with the signal acquisition module, and the signal processing module is adopted for receiving the signal
Collect the digital signal that module is sent, the pressure size that pressure sensor detects is judged, by data transfer to signal display module.
2. the apparatus according to claim 1, which is characterized in that further include: pressure source, the pressure source and the gas circuit control
Unit processed is connected, for being inflated and being evacuated in checking procedure.
3. the apparatus of claim 2, which is characterized in that the pressure source includes: the blowing pressure source and suction pressure
Source is respectively used to the air outlet valve and intake valve pressure checking of breather valve；
The blowing pressure source includes: inflator pump and high-pressure pump；
The suction pressure source includes: aspiration pump and high pressure pump bowl.
4. the apparatus according to claim 1, which is characterized in that the signal conditioning module includes that filter circuit and signal are put
Big circuit.
5. the apparatus according to claim 1, which is characterized in that the signal acquisition module includes AD conversion chip and its matches
Cover circuit.
6. the apparatus according to claim 1, which is characterized in that the signal processing module includes processor chips and its control
Circuit processed.
7. the apparatus according to claim 1, which is characterized in that the processor chips are single-chip microcontroller or ARM chip system
System.
8. the apparatus according to claim 1, which is characterized in that the signal display module includes liquid crystal display and number
Pipe.
9. the apparatus according to claim 1, which is characterized in that the gas circuit control unit include inlet suction port, check valve,
Shut-off valve, mechanical pressure gauge, pressure sensor, storage cylinder, breathing valve union, overflow valve, shut-off valve, check valve, air extraction connector.
10. the apparatus according to claim 1, which is characterized in that further include: data processing module, the data processing mould
Block includes: including serial communication circuit and GPRS wireless sending module, for carrying out wired and wireless communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053169.6A CN109655257A (en) | 2019-01-21 | 2019-01-21 | A kind of portable tank vehicle constant pressure tank body breather valve calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053169.6A CN109655257A (en) | 2019-01-21 | 2019-01-21 | A kind of portable tank vehicle constant pressure tank body breather valve calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109655257A true CN109655257A (en) | 2019-04-19 |
Family
ID=66120544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910053169.6A Pending CN109655257A (en) | 2019-01-21 | 2019-01-21 | A kind of portable tank vehicle constant pressure tank body breather valve calibration equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN109655257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333066A (en) * | 2019-07-19 | 2019-10-15 | 山东雁翔机电工程有限公司 | A kind of breathing valve checking table |
-
2019
- 2019-01-21 CN CN201910053169.6A patent/CN109655257A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333066A (en) * | 2019-07-19 | 2019-10-15 | 山东雁翔机电工程有限公司 | A kind of breathing valve checking table |
| CN110333066B (en) * | 2019-07-19 | 2020-11-13 | 山东雁翔机电工程有限公司 | Breather valve calibration stand |
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