CN207036864U - Alcohol content tester calibrating installation - Google Patents
Alcohol content tester calibrating installation Download PDFInfo
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- CN207036864U CN207036864U CN201720840394.0U CN201720840394U CN207036864U CN 207036864 U CN207036864 U CN 207036864U CN 201720840394 U CN201720840394 U CN 201720840394U CN 207036864 U CN207036864 U CN 207036864U
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Abstract
The utility model provides a kind of alcohol content tester calibrating installation, the inside steel cylinder of the multiple different sizes for the proof-spirit gas for being mounted with various concentrations respectively is arranged in constant temperature cabinet (1), heated constant temperature is carried out to the inside steel cylinder of multiple different sizes using the constant temperature cabinet (1) so that the proof-spirit gas of various concentrations is in temperature constant state in each internal steel cylinder；Multiple mass flow controllers, inside steel cylinder one mass flow controller of corresponding connection of a specification are set, and the outside steel cylinder for being mounted with air corresponds to one mass flow controller of connection；Use and be reliably connected between complete machine control unit and display control unit；The temperature precise constant of proof-spirit gas can be made, suitable environment is wide, and control is reliable, easy to operate, in the absence of mixed gas, does not waste proof-spirit gas, measurement result is more accurate, and measurement efficiency is higher.
Description
Technical field
Alcoholicity of exhaled gas detector (abbreviation alcohol content tester) Calibration Technology field is the utility model is related to, especially
It is related to a kind of alcohol content tester calibrating installation that proof-spirit gas is produced using dry type alcohol gas.
Background technology
Alcohol content tester is traffic police instrument, belongs to a kind of measurement instrument, only by metrological service calibrating simultaneously
The alcohol content tester for obtaining calibration certificate just has legitimacy.How alcohol content tester is examined and determineFirstly the need of there is proof-spirit gas
Body.Proof-spirit gas currently used for calibrating is divided into two kinds：Dry gas and moisture.So-called moisture, simulated by wet type alcohol
Proof-spirit gas caused by device.So-called dry gas, it is the proof-spirit gas being mounted in steel cylinder prepared using weight method, by
There is no moisture, therefore referred to as dry gas in such alcohol gas.Because dry gas source tracing method is simple, therefore, our national regulations, use
Ethanol (alcohol) gas has card one-level gas reference material as standard of tracing to the source in air.Dry gas is in steel cylinder with molar concentration
To measure, it is under certain atmospheric pressure, certain temperature conditionss in actual use, therefore, it is necessary to molar concentration is changed
Into mass concentration, by vertification regulation requirement, the concentration range for examining and determine the proof-spirit gas used in alcohol content tester is：(0.1~
0.6) mg/L, three different proof-spirit gas concentrations and the totally four concentration conducts of an air (alcohol concentration 0mg/L)
Detectable concentration；34 DEG C are generally in view of the temperature of characteristics of contaminated respiratory droplets gas, exhaled gas temperature can influence measurement result, therefore,
Needed proof-spirit gas thermostatic during calibrating to 34 DEG C ± 0.5 DEG C；Further, since the volume of characteristics of contaminated respiratory droplets gas, flow, exhaling
Measurement result can be influenceed by going out the factors such as time, be required according to vertification regulation, and the sample introduction flow of proof-spirit gas is not less than 15L/
Min, flow is adjustable, the flowed fluctuation of sample introduction process be no more than 4%, meanwhile, from alcohol content tester calibrating installation out standard
Gas should be able to simulate the exhalation process of human body, it is desirable to which the parameter such as volume, flow and expiratory duration of exhaled gas can basis
It is required that setting.
There is the alcohol content tester calibrating installation for meeting requirements above in the market.It is referring to Fig. 1, a kind of existing
Alcohol content tester calibrating installation is made up of the computer 100 and main frame 200 for being mounted with control software, and main frame 200 passes through with computer 100
USB connecting lines are communicated, wherein, main frame includes：Power module, RS232 serial ports turn USB communication module, FPGA control
Device (PLC) processed, a heating tube, a mass flow controller (Mass Flow Controller, MFC), several electromagnetism
Valve, a large barometer and connecting tube；Several steel cylinders outside the main frame 200 are located to be connected to by corresponding magnetic valve
MFC。
During the existing alcohol content tester calibrating installation work：
By large barometer come the atmospheric value of measure field to be changed to molar concentration；The gas that a certain steel cylinder comes out
Body is directly heated by the about 30cm heating tubes grown, it is desirable to which the temperature of gas outlet is constant at 34 DEG C；Adjusted by MFC
Save expiratory gas flow, volume and expiratory duration.Due to needing at least four alcohol concentration during calibrating, to save cost, the program is only
The parameters such as gas flow are controlled using a MFC, select the steel cylinder gas of certain concentration all the way to pass through MFC by controlling magnetic valve
And heating tube, finally reach detected alkograph.Problems be present in the program：
1st, the heating tube of 30CM length directly heats proof-spirit gas and is difficult to reach stationary temperature.The program uses diameter
About 10mm, the copper pipe outside parcel heating wire that wall thickness is about 1mm or so directly heats, because the heat of alcohol gas and copper pipe passes
Lead that coefficient (thermal conductivity factor) is relatively low, and it is 3 seconds that at least 1.2L proof-spirit gas is most short by time of copper pipe, up to 15
Second, it is difficult to reach from room temperature (18 DEG C~28 DEG C) 34 DEG C ± 0.5 DEG C of control accuracy within the so short time.Due to general temperature
The thermal capacitance of degree detection probe is bigger, it is difficult to the quick temperature for directly detecting the proof-spirit gas at inlet and outlet, so as to
It is difficult to control heating process by feeding back, when room temperature changes between 18 DEG C~28 DEG C, the program from principle for it is difficult
To ensure that the temperature in exit is constant at 34 DEG C ± 0.5 DEG C.
2nd, as shown in figure 1, steel cylinder 1, steel cylinder 2, steel cylinder 3, with steel cylinder 4 this four roads gas sharing a MFC, by controlling electromagnetism
Valve selects different gas circuits to make the proof-spirit gas in different steel cylinders enter the MFC, before being had when gas circuit is changed
The gas residue of one concentration, therefore, it is necessary to carry out gas washing.This can cause several point defects：First, switching steel cylinder gas is washed every time
Gas can cause time of measuring long；Secondly, gas washing can waste proof-spirit gas costly；3rd, gas washing can not be complete
The gas remained in wash clean pipeline, influences measurement accuracy；Finally, magnetic valve more or less has leakage, and multiple magnetic valves are very
The no leakage of card or failsafe are difficult to ensure, being likely to result in gas when unconspicuous failure be present uses with, influences measurement effect.
3rd, computer and corresponding control software are needed, computer connects main frame by USB connecting lines, by sending control command
To control the parts such as MFC, magnetic valve, heating tube, it is well known that USB connections are after repeatedly plug, and contact is unreliable, often
Go offline, if gone offline when measuring, MFC, magnetic valve and heating tube will be out of control, cause to hold, blow that it is tight to cannot stop etc.
Weight failure.
4th, the alcohol gas of various concentrations needs to be selected on computer software, needs to be preheated after choosing, and waits
Time is short then more than ten seconds, long then a few minutes, less efficient.
5th, need to select corresponding gas concentration on computers before measurement every time, then perform gas washing, start the operation such as air blowing,
Four concentration operation interfaces are not easy to differentiate, and easily get wrong.
Therefore, it is necessary to a kind of new alcohol content tester calibrating installation is designed to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of alcohol content tester calibrating installation, can make the temperature of proof-spirit gas
Precise constant is spent, suitable environment is wide, and control is reliable, easy to operate, in the absence of mixed gas, does not waste proof-spirit gas, measurement knot
Fruit is more accurate, and measurement efficiency is higher.
To achieve the above object, the utility model provides a kind of alcohol content of exhalation gas simulator, including：
Constant temperature cabinet；
Be arranged in the constant temperature cabinet, be mounted with respectively various concentrations proof-spirit gas multiple different sizes it is interior
Portion's steel cylinder；
The multiple mass flow controllers being arranged in the constant temperature cabinet；The corresponding connection one of inside steel cylinder of one specification
Mass flow controller；
It is arranged on multiple magnetic valves equal with the multiple mass flow controller quantity in the constant temperature cabinet；One electromagnetism
Valve one mass flow controller of corresponding connection；
Stretch out the outer air blowing component equal with the multiple mass flow controller quantity of the constant temperature cabinet；One air blowing component
The inside steel cylinder of a specification is correspondingly connected to via a mass flow controller and a magnetic valve；
The heater box being arranged in the constant temperature cabinet, for carrying out heated constant temperature to the air in constant temperature cabinet；
The temperature sensor being arranged in the constant temperature cabinet, for measuring the air themperature in constant temperature cabinet；
The complete machine control unit being arranged in the constant temperature cabinet；
And it is arranged on the display control list being electrically connected with the complete machine control unit on the constant temperature cabinet outer surface
Member；
The constant temperature cabinet is used to carry out heated constant temperature to the inside steel cylinder of the multiple different size so that each internal steel
The proof-spirit gas of various concentrations is in temperature constant state in bottle.
The alcohol content tester calibrating installation, in addition to an outside steel for being arranged on outside the constant temperature cabinet, being mounted with air
Bottle, the outside steel cylinder are connected by joint with the pipeline in constant temperature cabinet, it is described be mounted with air outside steel cylinder it is sequentially right
A magnetic valve, a mass flow controller and an air blowing component should be connected.
The display control unit include display screen, first control circuit plate and with the multiple mass flow controller
Quantity is equal and multiple controlling switches for stretching out outside the constant temperature cabinet；The inside steel cylinder of one controlling switch, one specification of corresponding control
Or outside steel cylinder is exhaled.
Large barometer is provided with the constant temperature cabinet, for measuring the atmospheric value in constant temperature cabinet.
Differential pressure pressure sensor being provided with the air blowing component, being exported during for measuring internal steel cylinder or the expiration of outside steel cylinder
Locate the difference of pipeline inner pressure and ambient atmosphere pressure.
The constant temperature cabinet includes cabinet, and the heater box is arranged on bottom of cabinet bulk；The constant temperature cabinet also includes and heater box
The air blower that is oppositely arranged of one end and multiple first fans at diverse location in the cabinet.
The complete machine control unit includes the second control circuit plate being electrically connected with heater box and controlled for described second
The dc source of circuit board power supply.
The constant temperature cabinet also includes the control box being located in the cabinet, the multiple mass flow controller, Duo Ge electricity
Magnet valve, second control circuit plate, dc source, large barometer and temperature sensor are arranged in the control box.
The heater box includes casing, the heating tube being located in the casing, the other end and the case in the heater box
Second fan of body fixation, the heater circuit plate for being fixed on the casing top and anti-overheating protection circuit plate and covering institute
State the protective cover of heater circuit plate and anti-overheating protection circuit plate；
The heater circuit plate is electrically connected to the second control circuit plate with anti-overheating protection circuit plate.
The cabinet include from outside to inside the nested successively and shell of top and open front, inner plating, with support frame,
Cover the removable cover of the cover top portion, cover the housing front for installing the panel of the display control unit, using
In the internal partition for supporting the supporting plate of the control box and being arranged on above the control box.
The inside steel cylinder of one specification is divided into the inside steel cylinder of 8L capacity, the inside steel cylinder with 4L capacity；
The inside steel cylinder that the support frame corresponds to every 8L capacity is provided with the inside that hollow-out parts are used to house the 8L capacity
Steel cylinder；
The cabinet also includes the bearing plate for being used to place the inside steel cylinder of 4L capacity.
The display interface of display screen includes in the display control unit：
Constant temperature in-cabinet temperature, atmospheric pressure, differential pressure and flow indication area；
The preheating progress viewing area of constant temperature cabinet；
The inside steel cylinder of each specification proof-spirit gas concentration viewing area corresponding with outside steel cylinder difference；
General measure parameter setting area；
And a variety of test pattern selection areas.
The air blowing component includes tubular base, is respectively fixedly connected with blow gun and pipe in the tubular base rear and front end
Straight coupling, the circuit board on the tubular base and it is fixed for covering circuit board and differential pressure with the tubular base
The protection cap of pressure sensor；The circuit board is electrically connected to the first control circuit plate.
The beneficial effects of the utility model：A kind of alcohol content of exhalation gas simulator provided by the utility model, will be filled respectively
The inside steel cylinder for being loaded with multiple different sizes of the proof-spirit gas of various concentrations is arranged in constant temperature cabinet, uses the constant temperature
Cabinet carries out heated constant temperature to the inside steel cylinder of multiple different sizes so that the proof-spirit gas of various concentrations in each internal steel cylinder
Body is in temperature constant state, can make the temperature precise constant of proof-spirit gas, and suitable environment is wide；Multiple mass flow controls are set
Device processed, inside steel cylinder one mass flow controller of corresponding connection of a specification, the outside steel cylinder for being mounted with air correspondingly connect
Connect a mass flow controller, during test, the inside steel cylinder or outside steel cylinder of each specification independently form a gas circuit, do not deposit
In mixed gas, without gas washing, proof-spirit gas is neither wasted, enables to that measurement result is more accurate, measurement efficiency again
It is higher；Using being reliably connected between complete machine control unit and display control unit, without USB connecting lines, in the absence of the risk that goes offline,
Control is reliable, corresponding steel cylinder need to be only selected by controlling switch during test, intelligence degree is higher, time-saving and efficiency.
Brief description of the drawings
In order to be further understood that feature of the present utility model and technology contents, refer to new below in connection with this practicality
The detailed description of type and accompanying drawing, but accompanying drawing is only provided and used with reference to explanation, is not used for being any limitation as the utility model.
In accompanying drawing,
Fig. 1 is a kind of structured flowchart of existing alcohol content tester calibrating installation；
Fig. 2 is Three-dimensional combination diagram of the alcohol content tester calibrating installation of the present utility model under an angle；
Fig. 3 is Three-dimensional combination diagram of the alcohol content tester calibrating installation of the present utility model under another angle；
Fig. 4 is the Three-dimensional combination diagram of the internal structure of alcohol content tester calibrating installation of the present utility model；
Fig. 5 is the vertical section schematic diagram of alcohol content tester calibrating installation of the present utility model；
Fig. 6 is the exploded perspective schematic diagram of alcohol content tester calibrating installation of the present utility model；
Fig. 7 is the Three-dimensional combination diagram of control box in alcohol content tester calibrating installation of the present utility model；
Fig. 8 is the exploded perspective schematic diagram of control box in alcohol content tester calibrating installation of the present utility model；
Fig. 9 is the exploded perspective schematic diagram of heater box in alcohol content tester calibrating installation of the present utility model；
Figure 10 is the exploded perspective schematic diagram of air blowing component in alcohol content tester calibrating installation of the present utility model；
Figure 11 is the schematic perspective view of a complete gas circuit in alcohol content tester calibrating installation of the present utility model；
Figure 12 is the signal letter of the display interface of display control unit in alcohol content tester calibrating installation of the present utility model
Figure.
Embodiment
The technological means and its effect taken for further elaboration the utility model, below in conjunction with of the present utility model
Preferred embodiment and its accompanying drawing are described in detail.
Fig. 2 to Fig. 6 is referred to, with reference to Fig. 7, Fig. 8 and Figure 11, the utility model provides a kind of alcohol content tester calibrating dress
Put, including：
Constant temperature cabinet 1；
Be arranged in the constant temperature cabinet 1, be mounted with respectively various concentrations proof-spirit gas multiple different sizes
Internal steel cylinder 21；
One is arranged on the outside steel cylinder 22 that the constant temperature cabinet 1 is outer, is mounted with air, and the outside steel cylinder 22 passes through joint 221
It is connected with the pipeline in constant temperature cabinet 1；Because what is loaded in the outside steel cylinder 22 is air, if constant temperature influences on measurement result
Less, to save space meter, can be placed on outside constant temperature cabinet 1, certainly if desired, loading the steel cylinder of air can also be placed on
In constant temperature cabinet 1；
The multiple mass flow controllers 3 being arranged in the constant temperature cabinet 1；One specification (is come by the difference of alcohol concentration
Divide specification) one mass flow controller 3 of corresponding connection of inside steel cylinder 21, it is described be mounted with air outside steel cylinder 22 it is right
A mass flow controller 3 should be connected；
It is arranged on multiple bi-bit bi-pass equal with the multiple quantity of mass flow controller 3 in the constant temperature cabinet 1
Magnetic valve 4；One magnetic valve 4, one mass flow controller 3 of corresponding connection；
Stretch out the outer air blowing component 5 equal with the multiple quantity of mass flow controller 3 of the constant temperature cabinet 1；One blows
Component 5 is correspondingly connected to the inside steel cylinder 21 of specification or outside steel cylinder via a mass flow controller 3 and a magnetic valve 4
22；
The heater box 12 being arranged in the constant temperature cabinet 1, to carry out heated constant temperature to the air in constant temperature cabinet 1；
The temperature sensor 10 being arranged in the constant temperature cabinet 1, for measuring the air themperature in constant temperature cabinet 1；
The large barometer 7 being arranged in the constant temperature cabinet 1, for measuring the atmospheric value in constant temperature cabinet 1；
The complete machine control unit 8 being arranged in the constant temperature cabinet 1；
And it is arranged on the display control being electrically connected with the complete machine control unit 8 on the outer surface of constant temperature cabinet 1
Unit 9.
The display control unit 9 includes display screen 96, first control circuit plate 97, entered with the complete machine control unit 8
Connecting line (not shown) that row is electrically connected with and equal with the multiple quantity of mass flow controller 3 and stretch out the constant temperature
Multiple controlling switches 6 outside cabinet 1, the inside steel cylinder 21 or outside steel cylinder 22 of corresponding one specification of control of a controlling switch 6 are exhaled.
Further, the 6 preferred push-button switch of controlling switch and with light prompt；When pressing some described controlling switch 6,
Display control unit 9 is ordered to control corresponding matter according to parameters such as the flow of setting, expiratory durations to complete machine control unit 8
Amount flow controller 3 and magnetic valve 4 work so that the gas in the steel cylinder corresponding to controlling switch 6 pressed with this connect to
Alcohol content tester, realize detection.
Specifically, the molar concentration value of proof-spirit gas loaded in it is labeled with the internal steel cylinder 21, and
User using when corresponding molar concentration value is entered into the display control unit 9.The inside steel cylinder of one specification
21 points of inside steel cylinders and the inside steel cylinder of 4L capacity or the steel cylinder of other capacity for 8L capacity.
Specifically, the constant temperature cabinet 1 includes cabinet 11, and the heater box 12 is to be arranged on the bottom of cabinet 11, in addition to
The air blower 13 that is oppositely arranged in one end of the bottom of the cabinet 11 and the heater box 12, in the cabinet 11 not
Multiple first fans 14 and the control box 15 that is located in the cabinet 11 with opening position, for convenience mobile constant temperature cabinet
1, four weight bearing roller wheels 17 can be also installed on the bottom surface of the cabinet 11.The constant temperature cabinet 1 is used for the multiple different rule
The inside steel cylinder 21 of lattice carries out heated constant temperature so that the proof-spirit gas of various concentrations is in constant temperature in each internal steel cylinder 21
State, typically examine and determine requirement 34 DEG C ± 0.5 DEG C.No matter what alcohol content tester calibrating installation so of the present utility model is in
In the test environment of kind temperature (environment temperature is not above the temperature that calibrating requires, such as 34 DEG C), the constant temperature cabinet 1 can
Make the temperature precise constant of proof-spirit gas at 34 DEG C ± 0.5 DEG C, so alcohol content tester calibrating installation of the present utility model
Suitable environment it is wider.
The cabinet 11 is in cuboid substantially, and the heater box 12 is used to heat, and the air blower 13 is used to make heating
Heat caused by case 12 is uniformly dispersed, and the multiple first fan 14 is used for when the temperature in constant temperature cabinet 1 is too high, from cabinet 11
Blown outside towards in cabinet 11, constant temperature cabinet 1 is carried out air-cooled, prevent from overheating.Further, please refer to Fig. 2 to Fig. 6, institute
Stating cabinet 11 includes from outside to inside nested and the shell 111 of top and open front, inner plating 112 and support frame successively
113rd, cover the removable cover 114 at the top of shell 111, cover the front portion of shell 111 for installing the display control
The panel 115 of unit 9, the supporting plate 116 for supporting the control box 15, the internal partition for being arranged on the top of control box 15
117 and the bearing plate 118 of the inside steel cylinder for placing 4L capacity, due to 4L steel cylinders height, bearing plate lower than 8L steel cylinder
118 are placed in the middle part of cabinet 11, can lift height of the 4L steel cylinders in cabinet 11, convenient operation.Wherein, the removable cover
114 are connected with panel 115 by loose-leaf, and the upper surface of removable cover 114 is provided with handle 1141, conveniently raises the removable cover
The 114 observation inner cases of cabinet 11 change internal steel cylinder 21, are furnished with sealing gasket below the edge of the removable cover 114
1142, prevent heat from being distributed from gap of the removable cover 114 with shell 111；The corresponding every 8L capacity of the support frame 113
Inside steel cylinder be provided with hollow-out parts 1131 and be used to house the inside steel cylinder of the 8L capacity.
Specifically, as shown in figure 8, the complete machine control unit 8 is including being electrically connected with heater box 12, each for controlling
Individual mass flow controller 3, each magnetic valve 4, large barometer 7, temperature sensor 10, the second control circuit with heater box 12
Plate 81 and the dc source 82 for the second control circuit plate 81 power supply.The second control circuit plate 81 is controlled with display
Electric connection (not shown) is carried out by RS232 Serial Port Lines between unit 9 processed, set according to user in display control unit 9
Parameter controls mass flow controller 3, magnetic valve 4, the heated constant temperature circuit in heater box 12, and the constant temperature that it is detected
The information such as temperature value, atmospheric value, expiratory gas flow in cabinet 1 are sent to display control unit 9.The second control circuit plate 81
In on temperature detection and computer heating control, the control of mass flow controller, the control of magnetic valve be technology commonly used in the art
With method, do not describe in detail herein.Further, the multiple mass flow controller 3, multiple magnetic valves 4, second control
Circuit board 81, dc source 82, large barometer 7 and temperature sensor 10 are arranged in the control box 15；The direct current
Power outlet 87 of the source 82 by being located at the side of control box 15 connects external power source；The multiple magnetic valve 4 is arranged on located at control
In solenoid valve base 41 inside box 15.It will be appreciated by the skilled addressee that large barometer, temperature detection and computer heating control,
Mass flow controller, magnetic valve etc. can also directly be controlled by display control unit 9.
Multiple mass flow controllers 3 are set, and the inside steel cylinder 21 of a specification is corresponding to connect a mass flow control
Device 3, it is the advantages of one mass flow controller 3 of corresponding connection of outside steel cylinder 22 for being mounted with air：As shown in figure 11, survey
During examination, the inside steel cylinder 21 or outside steel cylinder 22 of each specification are exhaled by each self-corresponding mass flow controller 3 to adjust
Flow, volume and expiratory duration, a gas circuit is independently formed, in the absence of mixed gas, without gas washing, neither waste standard
Alcohol gas, enables to that measurement result is more accurate, measurement efficiency is higher again.Complete machine control unit 8 is set to come to each quality
Flow controller 3, each magnetic valve 4 and heater box 12 etc. carry out overall control, without as prior art computer with
Set USB connecting lines to be attached between main frame, need to only pass through so as to which in the absence of going offline risk out of control, control is reliable, during test
Controlling switch 6 selects corresponding steel cylinder, and intelligence degree is higher, time-saving and efficiency.
Specifically, as shown in figure 9, the heater box 12 includes casing 121, the heating tube being located in the casing 121
122nd, the second fan 123 for being fixed in the other end and the casing 121 of the heater box 12, it is fixed on the top of casing 121
Heater circuit plate 124 and anti-overheating protection circuit plate 125 and cover and protect the heater circuit plate 124 and anti-overheat
The protective cover 126 of protection circuit plate 125.Wherein, the both ends open of heater box 12, one end are pacified against air blower 13, the other end
Fill second fan 123 by heating tube 122 be powered caused by heat be blown at the air entry of air blower 13；The heater circuit plate
124 are electrically connected to the second control circuit plate 81 with anti-overheating protection circuit plate 125；On the heater circuit plate 124
Provided with heated constant temperature circuit, overheat fuse is installed on the anti-overheating protection circuit plate 125 and (is called Thermal Cutoffs, temperature
Control fuse or temperature controller) 1251, then cut off to heating tube 122 when the temperature on overheat fuse 1251 is too high
Power supply, plays anti-overtemperature protection effect.The heating tube 122 can be made up of various types of heating wire.
Specifically, as shown in Figure 10, the air blowing component 5 includes tubular base 51, is respectively fixedly connected with the tubulose
The blow gun 52 of the rear and front end of pedestal 51 with tubular configured joint 53, the circuit board 54 on the tubular base 51, installed in institute
State the differential pressure pressure sensor 55 on circuit board 54 and be fixed for covering circuit board 54 and differential pressure pressure with the tubular base 51
The protection cap 56 of force snesor 55.Wherein, the circuit board 54 is electrically connected to the first control circuit plate 97；When being surveyed
During examination, alcohol content tester to be examined and determine is connected to the air blowing group corresponding with the inside steel cylinder 21 of the expiration or outside steel cylinder 22
On the blow gun 52 of part 5；The differential pressure pressure sensor 55 is used for the outlet pressure for sensing the gas piping for flowing through air blowing component 5,
The differential pressure value of atmospheric pressure in pressure and environment i.e. in the pipeline of exit.
Specifically, as shown in figure 12, the display interface of display screen 96 includes in the display control unit 9：
Constant temperature in-cabinet temperature, atmospheric pressure, differential pressure and flow indication area 91；
The preheating progress viewing area 92 of constant temperature cabinet 1；
The inside steel cylinder 21 of each specification proof-spirit gas concentration viewing area 93 corresponding with outside steel cylinder 22 difference；
General measure parameter setting area 94；
And a variety of test pattern selection areas 95.
Wherein, the constant temperature in-cabinet temperature shown by the constant temperature in-cabinet temperature, atmospheric pressure, differential pressure and flow indication area 91
The data such as value, atmospheric value, expiratory gas flow come from complete machine control unit 8, and differential pressure comes from the differential pressure sensing in air blowing component 5
Device 55 and display control unit 9；The display control unit 9 obtains and automatically will be the multiple according to atmospheric value, temperature value
The proof-spirit gas of various concentrations and the molar concentration of the air in outside steel cylinder 22 are changed in the inside steel cylinder 21 of different size
Mass concentration is counted as, and in the proof-spirit gas concentration corresponding with outside steel cylinder 22 difference of inside steel cylinder 21 of each specification
The conversion formula of the display of viewing area 93 scaling results, molar concentration and mass concentration is as follows：
In formula：C --- alcohol quality concentration in expiration, unit：mg/L；
P --- atmospheric pressure during calibrating, unit：kPa；
The molal weight of M --- alcohol molecule, 46.07g/mol；
R --- gas constant, 8.3145LkPa/ (molK)；
T --- exit alcohol gas temperature, 307.15K；
X --- alcohol molar concentration (molar fraction), unit in expiration：μm ol/mol or PPM.
The general measure parameter setting area 94 is used to supply the volume of the exhaled gas of user's setting needs, flow and exhaled
Gas time, the display control unit 9 are accordingly controlled according to the facilities of user；A variety of test pattern selection areas
The 95 various possible situations in actual test provide a variety of test patterns and (such as minimum expiration amount test pattern, exhale and interrupt
Test pattern, expiratory resistance test pattern etc.) selected for user, every kind of test pattern is preset with corresponding exhaled gas
Volume, flow and expiratory duration, the test pattern that the display control unit 9 selects according to user accordingly controlled.
During using the alcohol content tester calibrating installation, user only needs constant temperature cabinet 1 described in first starting up to be preheated, and makes
The proof-spirit gas for obtaining various concentrations in each internal steel cylinder 21 is in temperature constant state to set point of temperature；Touch control switch again
6, select inside steel cylinder 21 or outside steel cylinder 22 with the corresponding specification of controlling switch 6 to exhale；Display control unit 9 is according to user
The parameter of setting sends control command to complete machine control unit 8, and the inside steel with exhaling is controlled using the complete machine control unit 8
The corresponding mass flow controller 3 of 21 or outside steel cylinders 22 of bottle and magnetic valve 4 come adjust the volume of exhaled gas, flow and
Expiratory duration, so as to export satisfactory proof-spirit gas in exit, after the alcohol gas enters alcohol content tester
Alcohol content tester can be examined and determine, measured value and the display control unit 9 for comparing alcohol content tester to be examined and determine are aobvious
The corresponding mass concentration shown can determine that whether fixed alcohol content tester to be checked is qualified.
As seen from the above description, alcohol content tester calibrating installation of the present utility model, will be mounted with various concentrations respectively
The inside steel cylinder 21 of multiple different sizes of proof-spirit gas is arranged in constant temperature cabinet 1, using the constant temperature cabinet 1 to it is multiple not
The inside steel cylinder 21 of same specification carries out heated constant temperature so that the proof-spirit gas of various concentrations is in each internal steel cylinder 21
Temperature constant state, can make the temperature precise constant of proof-spirit gas, and suitable environment is wide；Multiple mass flow controllers 3 are set,
Correspondingly one mass flow controller 3 of connection, the outside steel cylinder 22 for being mounted with air correspondingly connect the inside steel cylinder 21 of one specification
Connect a mass flow controller 3, during test, the inside steel cylinder 21 or outside steel cylinder 22 of each specification independently form a gas
Road, in the absence of mixed gas, without gas washing, proof-spirit gas is neither wasted, enable to that measurement result is more accurate, surveys again
Amount efficiency is higher；Using being reliably connected between complete machine control unit 8 and display control unit 9, without USB connecting lines, it is not present
Go offline risk, and control is reliable, only need to select corresponding steel cylinder by controlling switch 6 during test, intelligence degree is higher, time saving height
Effect.
In summary, alcohol content tester calibrating installation of the present utility model, the standard wine of various concentrations will be mounted with respectively
The inside steel cylinder of multiple different sizes of vital essence body is arranged in constant temperature cabinet, using the constant temperature cabinet in multiple different sizes
Portion's steel cylinder carries out heated constant temperature so that the proof-spirit gas of various concentrations is in temperature constant state in each internal steel cylinder, can
Make the temperature precise constant of proof-spirit gas, suitable environment is wide；Multiple mass flow controllers, the inside of a specification are set
Steel cylinder one mass flow controller of corresponding connection, it is mounted with one mass flow control of the corresponding connection of outside steel cylinder of air
Device, during test, the inside steel cylinder or outside steel cylinder of each specification independently form a gas circuit, in the absence of mixed gas, without
Gas washing, proof-spirit gas is neither wasted, enable to that measurement result is more accurate, measurement efficiency is higher again；Complete machine control unit
Using being reliably connected between display control unit, without USB connecting lines, in the absence of the risk that goes offline, control is reliable, during test only
Corresponding steel cylinder need to be selected by controlling switch, intelligence degree is higher, time-saving and efficiency.
It is described above, for the person of ordinary skill of the art, can according to the technical solution of the utility model and
Technical concept makes other various corresponding changes and deformation, and all these changes and deformation should all belong to of the present utility model
Scope of the claims.
Claims (13)
- A kind of 1. alcohol content tester calibrating installation, it is characterised in that including：Constant temperature cabinet (1)；Be arranged in the constant temperature cabinet (1), be mounted with respectively various concentrations proof-spirit gas multiple different sizes it is interior Portion's steel cylinder (21)；The multiple mass flow controllers (3) being arranged in the constant temperature cabinet (1)；The inside steel cylinder (21) of one specification is corresponding to be connected Connect a mass flow controller (3)；It is arranged on multiple magnetic valves (4) equal with the multiple mass flow controller (3) quantity in the constant temperature cabinet (1)； One magnetic valve (4), one mass flow controller (3) of corresponding connection；Stretch out the constant temperature cabinet (1) the air blowing component (5) equal with the multiple mass flow controller (3) quantity outside；One blows Pneumatic module (5) is correspondingly connected to the inside steel cylinder of a specification via a mass flow controller (3) and a magnetic valve (4) (21)；The heater box (12) being arranged in the constant temperature cabinet (1), for carrying out heated constant temperature to the air in constant temperature cabinet (1)；The temperature sensor (10) being arranged in the constant temperature cabinet (1), for measuring the air themperature in constant temperature cabinet (1)；The complete machine control unit (8) being arranged in the constant temperature cabinet (1)；And it is arranged on the display control being electrically connected with the complete machine control unit (8) on the constant temperature cabinet (1) outer surface Unit (9)；The constant temperature cabinet (1) is used to carry out heated constant temperature to the inside steel cylinder (21) of the multiple different size so that in each The proof-spirit gas of portion's steel cylinder (21) interior various concentrations is in temperature constant state.
- 2. alcohol content tester calibrating installation as claimed in claim 1, it is characterised in that be also arranged on the constant temperature cabinet including one (1) outside, be mounted with the outside steel cylinder (22) of air, the outside steel cylinder (22) passes through joint (221) and the pipe in constant temperature cabinet (1) Road is connected, and the outside steel cylinder (22) for being mounted with air sequentially corresponds to one magnetic valve (4) of connection, a mass flow control Device (3) processed and an air blowing component (5).
- 3. alcohol content tester calibrating installation as claimed in claim 2, it is characterised in that the display control unit (9) includes Described in display screen (96), first control circuit plate (97) and and stretching equal with the multiple mass flow controller (3) quantity The multiple controlling switches (6) of constant temperature cabinet (1) outside；The corresponding inside steel cylinder (21) or outer for controlling a specification of one controlling switch (6) Portion's steel cylinder (22) is exhaled.
- 4. alcohol content tester calibrating installation as claimed in claim 3, it is characterised in that be provided with air in the constant temperature cabinet (1) Pressure meter (7), for measuring the atmospheric value in constant temperature cabinet (1).
- 5. alcohol content tester calibrating installation as claimed in claim 4, it is characterised in that it is poor to be provided with the air blowing component (5) Pressure pressure sensor (55), for measuring exit pipeline inner pressure and ring when internal steel cylinder (21) or outside steel cylinder (22) are exhaled The difference of border atmospheric pressure.
- 6. alcohol content tester calibrating installation as claimed in claim 5, it is characterised in that the constant temperature cabinet (1) includes cabinet (11), the heater box (12) is arranged on cabinet (11) bottom；The constant temperature cabinet (1) also includes one end phase with heater box (12) Air blower (13) to setting and multiple first fans (14) at the cabinet (11) interior diverse location.
- 7. alcohol content tester calibrating installation as claimed in claim 6, it is characterised in that the complete machine control unit (8) includes The second control circuit plate (81) and the direct current for the second control circuit plate (81) power supply being electrically connected with heater box (12) Power supply (82).
- 8. alcohol content tester calibrating installation as claimed in claim 7, it is characterised in that the constant temperature cabinet (1) also includes being located at Control box (15) in the cabinet (11), the multiple mass flow controller (3), multiple magnetic valves (4), the second control electricity Road plate (81), dc source (82), large barometer (7) and temperature sensor (10) are arranged in the control box (15).
- 9. alcohol content tester calibrating installation as claimed in claim 7, it is characterised in that the heater box (12) includes casing (121) heating tube (122) in the casing (121), the other end and the casing (121) in the heater box (12), are located at Fixed the second fan (123), the heater circuit plate (124) being fixed at the top of the casing (121) and anti-overheating protection circuit Plate (125) and the protective cover (126) for covering the heater circuit plate (124) and anti-overheating protection circuit plate (125)；The heater circuit plate (124) is electrically connected to the second control circuit plate with anti-overheating protection circuit plate (125) (81)。
- 10. alcohol content tester calibrating installation as claimed in claim 8, it is characterised in that the cabinet (11) is included by outside extremely Inside the nested and shell of top and open front (111), inner plating (112) and support frame (113), covering are described outer successively Removable cover (114), the covering shell (111) at the top of shell (111) is anterior for installing the display control unit (9) Panel (115), the supporting plate (116) for supporting the control box (15) and it is arranged on above the control box (15) Internal partition (117).
- 11. alcohol content tester calibrating installation as claimed in claim 10, it is characterised in that the inside steel cylinder of one specification (21) it is divided into the inside steel cylinder of 8L capacity, the inside steel cylinder with 4L capacity；The inside steel cylinder of the corresponding every 8L capacity of the support frame (113) is provided with hollow-out parts (1131) and is used to house the 8L capacity Inside steel cylinder；The cabinet (11) also includes the bearing plate (118) for being used to place the inside steel cylinder of 4L capacity.
- 12. alcohol content tester calibrating installation as claimed in claim 5, it is characterised in that show in the display control unit (9) The display interface of display screen (96) includes：Constant temperature in-cabinet temperature, atmospheric pressure, differential pressure and flow indication area (91)；The preheating progress viewing area (92) of constant temperature cabinet (1)；The inside steel cylinder (21) of each specification proof-spirit gas concentration viewing area (93) corresponding with outside steel cylinder (22) difference；General measure parameter setting area (94)；And a variety of test pattern selections area (95).
- 13. alcohol content tester calibrating installation as claimed in claim 7, it is characterised in that the air blowing component (5) includes tubulose Pedestal (51), it is respectively fixedly connected with blow gun (52) and tubular configured joint (53), installation in the tubular base (51) rear and front end Circuit board (54) on the tubular base (51) and with the tubular base (51) be fixed for covering circuit board (54) and The protection cap of differential pressure pressure sensor (55)；The circuit board (54) is electrically connected to the first control circuit plate (97).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840394.0U CN207036864U (en) | 2017-07-11 | 2017-07-11 | Alcohol content tester calibrating installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840394.0U CN207036864U (en) | 2017-07-11 | 2017-07-11 | Alcohol content tester calibrating installation |
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| CN207036864U true CN207036864U (en) | 2018-02-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192833A (en) * | 2017-07-11 | 2017-09-22 | 深圳市好美达科技有限公司 | Alcohol content tester calibrating installation and alcohol content tester calibration method |
| CN111610337A (en) * | 2020-05-20 | 2020-09-01 | 佳思德科技(深圳)有限公司 | Alcohol detector calibrating device and method for displaying current calibration allowable error |
| CN113640529A (en) * | 2021-07-07 | 2021-11-12 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Alcohol detector metering verification method |
| CN113640530A (en) * | 2021-07-26 | 2021-11-12 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Alcohol detector metrological verification management method capable of automatically identifying detection result |
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2017
- 2017-07-11 CN CN201720840394.0U patent/CN207036864U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192833A (en) * | 2017-07-11 | 2017-09-22 | 深圳市好美达科技有限公司 | Alcohol content tester calibrating installation and alcohol content tester calibration method |
| CN107192833B (en) * | 2017-07-11 | 2023-12-26 | 深圳市好美达科技有限公司 | Alcohol detector calibrating device and alcohol detector calibrating method |
| CN111610337A (en) * | 2020-05-20 | 2020-09-01 | 佳思德科技(深圳)有限公司 | Alcohol detector calibrating device and method for displaying current calibration allowable error |
| CN113640529A (en) * | 2021-07-07 | 2021-11-12 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Alcohol detector metering verification method |
| CN113640530A (en) * | 2021-07-26 | 2021-11-12 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Alcohol detector metrological verification management method capable of automatically identifying detection result |
| CN113640530B (en) * | 2021-07-26 | 2023-10-13 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Alcohol detector metering verification management method capable of automatically identifying detection result |
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Inventor after: Pan Weijiang Inventor after: Cui Houxiang Inventor before: Pan Weijiang Inventor before: Cui Houxiang Inventor before: Liu Yiling |