CN212459702U - Standard alcohol gas generating device for multi-channel alcohol detector verification - Google Patents
Standard alcohol gas generating device for multi-channel alcohol detector verification Download PDFInfo
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Abstract
The utility model provides a multichannel alcohol detector examines and determine and uses standard alcohol gas generating device, include: the device comprises a generating device body, a gas transmission pipeline, a plurality of first valves and a control module; the generating device body is provided with an output port capable of outputting standard alcohol gas, and the gas transmission pipeline comprises an input port and a plurality of detection ports communicated with the input port; the input port is communicated with the output port, the input end of each first valve is correspondingly connected with one detection port, and the output end outputs standard alcohol gas when the first valve is opened; the equal electric connection of control end of a plurality of first valves control module, control module is used for receiving the test command, and according to each first valve of test command control is opened and is closed, through setting up a plurality of detection mouths to control each detection mouth respectively through a plurality of first valves and blow, can realize the continuous examination of a plurality of alcohol detector, promote standard alcohol gas utilization ratio and alcohol detector examination efficiency.
Description
Technical Field
The utility model relates to an alcohol detector examination technical field especially relates to a multichannel alcohol detector examines and determine and uses standard alcohol gas generator.
Background
The exhaled gas alcohol content detector (short for alcohol detector) metrological verification regulation specifies that ethanol gas standard substances (short for primary standard gas) in national first-class certified air and standard alcohol gas generated by a generating source are used as verification gas, wherein the primary standard gas is used as tracing gas, and the standard alcohol gas generated by the generating source can be used as subsequent verification gas due to the fact that the primary standard gas is expensive, so that the use cost is saved.
Chinese utility model patent No. 201320830646.3 discloses a standard alcohol gas generator. In the patent, saturated or nearly saturated alcohol gas is generated by bubbling sample gas into liquid pure alcohol in a generator, then the saturated or nearly saturated alcohol gas is diluted by diluent gas in a mixing device, and finally standard alcohol gas with preset concentration is generated in the mixing device and is output through a detection port for a user to use when the alcohol detector is detected.
According to the requirements of the metrological verification regulation, the gas flow generated by the generating device at least needs to meet 15L/min-36L/min, and the concentration at least needs to realize three concentrations of 0.1mg/L, 0.4mg/L and 0.6 mg/L. Theoretically, the higher the concentration is, the larger the flow rate is, the larger the saturated alcohol gas generated from the generator is, but at a certain temperature and pressure, the generated saturated alcohol gas reaches the limit with the increase of the flow rate, and the saturated alcohol gas can also increase infinitely after the infinite increase of the flow rate is impossible, which indicates that the concentration and the flow rate of the standard alcohol gas which can be generated are limited, so the upper limit of the flow rate required by the metrological regulation is 36L/min.
When the alcohol detector is used for detecting, air needs to be blown firstly, and when the air blowing amount reaches the lowest air blowing volume, the alcohol detector is used for sampling and analyzing the blown standard alcohol gas to obtain a measurement result. The lowest blowing gas volume specified by the metrological verification regulation is 1.2L, blowing is carried out at a gas flow of 15L/min, the blowing time required for blowing 1.2L of gas is 4.8 seconds, the time for obtaining a measurement result by sampling and analyzing the alcohol detector after the blowing is finished is generally within 15 seconds, meanwhile, the alcohol detector needs a certain recovery time after completing one measurement, the recovery time is generally longer as the measured concentration is higher, and the recovery time is generally within 15 seconds as the concentration is 0.6 mg/L. The conventional generating device can only measure one alcohol detector at a time, and because each sampling and analysis of the alcohol detector requires time and the recovery after the sampling and analysis also requires time, most of standard alcohol gas is not used for measurement but is discharged as waste gas during the sampling, analysis and recovery of the alcohol detector, and the utilization rate is not high.
Can a plurality of alcohol detectors be simultaneously measured at one outlet? It is theoretically possible, for example, to have two wine meters at the same time for the measurement if the flow generated by the generating device is 30L/min when a flow of 15L/min is set. However, if more alcohol meters are used to measure the alcohol simultaneously, the flow rate is increased, for example, if three alcohol meters are used to measure the alcohol simultaneously, the flow rate is increased to at least 45L/min, which exceeds the working capacity of the generating device. Moreover, even if two alcohol detectors are operated simultaneously, only a medium or low concentration of standard alcohol gas, such as 0.1mg/L and 0.4mg/L, can be generated, and if 0.6mg/L is desired to be generated, only one alcohol detector can be detected due to the limited amount of saturated alcohol gas generated in the generator 2, and in addition, the utilization rate of the generated standard alcohol gas is not improved in this way. Therefore, it is necessary to solve the problems of how to improve the detection efficiency and the low utilization rate of the standard alcohol gas by other methods.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multichannel alcohol detector examines and determine and uses standard alcohol gas generating device can promote standard alcohol gas utilization ratio and alcohol detector examination efficiency.
In order to achieve the above object, the utility model provides a multichannel alcohol detector examines and determine and uses standard alcohol gas generator, include: the device comprises a generating device body, a gas transmission pipeline, a plurality of first valves and a control module;
the generating device body is provided with an output port capable of outputting standard alcohol gas, and the gas transmission pipeline comprises an input port and a plurality of detection ports communicated with the input port;
the input port is communicated with the output port, the input end of each first valve is correspondingly connected with one detection port, and the output end outputs standard alcohol gas when the first valve is opened;
the control ends of the first valves are electrically connected with the control module, and the control module is used for receiving a detection command and controlling the opening and closing of each first valve according to the detection command.
The standard alcohol gas generating device for the multichannel alcohol detector verification further comprises a second valve, and the gas transmission pipeline further comprises an exhaust port communicated with the input port;
the input end of the second valve is communicated with the exhaust port, and the output end of the second valve discharges waste gas when the second valve is opened.
The control end of the second valve is electrically connected with the control module, and the control module is further used for controlling the second valve to be opened when all the first valves are closed and to be closed when any one of the first valves is opened.
The detection command includes: a first command;
the first command is used for indicating whether the output end of each first valve is provided with an alcohol detector to be verified.
The control module is used for controlling each first valve of the alcohol detector to be calibrated arranged at the output end to be opened one by one according to the first command, and controlling each first valve of the alcohol detector not to be calibrated arranged at the output end to be kept closed.
The standard alcohol gas generating device for the multichannel alcohol detector verification further comprises a first command generating module, and the first command generating module is used for generating a first command according to whether the alcohol detector to be verified is arranged at the output end of each first valve.
The first command generation module is a plurality of input keys which are respectively arranged corresponding to the output ends of the first valves or a plurality of alcohol detector automatic identification devices which are respectively arranged corresponding to the output ends of the first valves.
The detection commands comprise second commands, and the second commands are used for setting blowing parameters of the first valves.
The blowing parameter comprises a first duration;
the control module is used for controlling the duration of each opening of each first valve to be the first duration according to the second command.
The blowing parameters comprise a first flow and a first volume;
the control module is used for controlling the flow of the standard alcohol gas output by each first valve in each opening according to a second command to be a first flow and controlling the total volume of the standard alcohol gas to be a first volume.
The blowing parameter comprises a second duration;
the control module is used for controlling the time length of an interval from the closing of the previous first valve to the opening of the next first valve in the two sequentially opened first valves to be a second time length according to a second command.
The blowing parameter comprises a third duration;
the control module is used for controlling the interval duration from the last opened first valve in the n-th round of blowing to the first opened first valve in the n + 1-th round of blowing to be the third duration according to the second command, and n is a positive integer.
The utility model has the advantages that: the utility model provides a multichannel alcohol detector examines and determine and uses standard alcohol gas generating device, include: the device comprises a generating device body, a gas transmission pipeline, a plurality of first valves and a control module; the generating device body is provided with an output port capable of outputting standard alcohol gas, and the gas transmission pipeline comprises an input port and a plurality of detection ports communicated with the input port; the input port is communicated with the output port, the input end of each first valve is correspondingly connected with one detection port, and the output end outputs standard alcohol gas when the first valve is opened; the equal electric connection of control end of a plurality of first valves control module, control module is used for receiving the test command, and according to each first valve of test command control is opened and is closed, through setting up a plurality of detection mouths to control each detection mouth respectively through a plurality of first valves and blow, can realize the continuous examination of a plurality of alcohol detector, promote standard alcohol gas utilization ratio and alcohol detector examination efficiency.
Drawings
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the present invention and accompanying drawings, which are provided for the purpose of illustration and description and are not intended to limit the present invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a schematic diagram of a standard alcohol gas generator for multi-channel alcohol detector calibration according to the present invention;
fig. 2 is a schematic diagram of the generating device body of the standard alcohol gas generating device for the multichannel alcohol detector calibration of the utility model.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1, the utility model provides a multichannel alcohol detector examines and determine and use standard alcohol gas generator, includes: the device comprises a generating device body 10, a gas transmission pipeline 20, a plurality of first valves 30 and a control module 40;
the generating device body 10 is provided with an output port 11 capable of outputting standard alcohol gas, and the gas transmission pipeline 20 comprises an input port 21 and a plurality of detection ports 22 communicated with the input port 21;
the input port 21 is communicated with the output port 11, the input end of each first valve 30 is correspondingly connected with one detection port 22, and the output end of each first valve is used as a blowing port of the standard alcohol gas to output the standard alcohol gas when the first valve 30 is opened;
the control ends of the first valves 30 are electrically connected to the control module 40, and the control module 40 is configured to receive a detection command and control the opening and closing of each first valve 30 according to the detection command.
Specifically, the standard alcohol gas generating device for the multichannel alcohol detector verification further comprises a second valve 50, and the gas transmission pipeline 20 further comprises an exhaust port 23 communicated with the input port 21; the input end of the second valve 50 is communicated with the exhaust port 23, and the output end discharges the exhaust gas when the second valve 50 is opened.
Further, the control end of the second valve 50 is electrically connected to the control module 40, and the control module 40 is further configured to control the second valve 50 to be opened when all the first valves 30 are closed, and to be closed when any one of the first valves 30 is opened.
When all of the first valves 30 are closed, the normal alcohol gas is not used for the alcohol meter calibration, but is discharged directly to the atmosphere via the second valve 50, and is referred to as an exhaust gas.
Specifically, the detection command includes: a first command; the first command is used to indicate whether the output of each first valve 30 is provided with an alcohol meter to be calibrated.
Further, the control module 40 is configured to control, according to the first command, the first valves 30 of which the output ends are provided with the alcohol detector to be calibrated to be opened one by one, and the first valves 30 of which the output ends are not provided with the alcohol detector to be calibrated to be kept closed.
Meanwhile, in order to obtain the first command, the multi-channel alcohol tester calibration standard alcohol gas generator further includes a first command generating module 60 for generating the first command according to whether the output end of each first valve 30 is provided with the alcohol tester to be calibrated.
Alternatively, the first command generating module 60 may be a plurality of input keys respectively corresponding to the plurality of first valves 30, and when an input key is pressed, a command that the output end of the first valve 30 corresponding to the input key is provided with the alcohol detector to be calibrated is generated, and when an input key is not pressed, a command that the output end of the first valve 30 corresponding to the input key is not provided with the alcohol detector to be calibrated is generated.
Optionally, the first command generating module 60 is a plurality of alcohol meter automatic recognition devices respectively corresponding to the plurality of first valves 30, and when an alcohol meter automatic recognition device recognizes an alcohol meter, a command that the output end of the first valve 30 corresponding to the alcohol meter automatic recognition device is provided with an alcohol meter to be calibrated is generated, and when an alcohol meter automatic recognition device does not recognize an alcohol meter, a command that the output end of the first valve 30 corresponding to the alcohol meter automatic recognition device is not provided with an alcohol meter to be calibrated is generated.
Optionally, the alcohol detector automatic identification device may implement automatic identification of the alcohol detector by using infrared, microwave proximity or occupancy detection technology.
Further, the detection commands include a second command for setting the blowing parameters of the respective first valves 30.
Optionally, the blowing parameter comprises a first duration; the control module 40 is configured to control each opening of the first valve 30 to be a first duration according to the second command. For example, the duration of each opening of the first valves 30 is set to 4.8 s.
Optionally, the insufflation parameters include a first flow and a first volume; the control module 40 is configured to control the flow rate of the standard alcohol gas output by each time of opening of each first valve 30 to be the first flow rate and the total volume of the output standard alcohol gas to be the first volume according to the second command. For example, the flow rate of the standard alcohol gas outputted per one time of opening of each first valve 30 is controlled to be 15L/min and the total volume of the outputted standard alcohol gas is controlled to be 1.2L.
Optionally, the blowing parameter comprises a second duration; the control module 40 is configured to control an interval duration from the closing of a previous first valve 30 to the opening of a next first valve 30 of the two sequentially opened first valves 30 to be a second duration according to a second command.
Performing primary air blowing on the output end of each first valve of the standard alcohol gas generating device for the verification of the multi-channel alcohol detector, wherein the first valve of the alcohol detector to be verified is arranged at the output end of the first valve; optionally, the blowing parameter comprises a third duration; the control module 40 is configured to control a duration of an interval from the last open first valve 30 in the n-th round of blowing to the opening of the first open first valve 30 in the n + 1-th round of blowing to be a third duration, which is also referred to as a waiting duration between each round of blowing, according to a second command, where n is a positive integer.
Alternatively, as shown in fig. 2, the generating device body 10 includes: first mass flow controller 1, generator 2, second mass flow controller 3, fourth mass flow controller 5, mixing arrangement 6 and third mass flow controller 4, sample gas is inserted to 1 one end of first mass flow controller, and the other end communicates with generator 2, 3 intercommunications of second mass flow controller generator 2 and mixing arrangement 6, dilution gas is inserted to 5 one end of fourth mass flow controller, and the other end communicates with mixing arrangement 6, 4 one end intercommunication generators 2 of third mass flow controller, the evacuation of the other end, delivery outlet 11 of generating device body 10 is located on the mixing arrangement 6. Of course, the specific implementation of the generating device body 10 of the present invention is not limited to the structure shown in fig. 2, and other suitable structures are also applicable to the present invention, for example, the first mass flow controller and the third mass flow controller can be omitted without affecting the basic function of the generating device body 10, and this can not affect the implementation of the present invention.
Preferably, the first valve 30 and the second valve 50 are two-position two-way solenoid valves, wherein the first valve 30 is normally closed, i.e., the control end is closed when not connected, and the control end is opened when connected, and the second valve 50 is normally open, i.e., the control end is opened when not connected, and the control end is closed when connected.
It should be noted that, the utility model discloses a multichannel alcohol detector examines and determine with standard alcohol gas generating device carries out alcohol detector and examines time working process as follows:
as shown in fig. 1, the standard alcohol gas output from the output port 11 of the generating device body 10 is input into the gas transmission pipeline 20 through the input port 21, the gas transmission management 20 is provided with a plurality of detection ports 22, each detection port 22 is provided with a first valve 30, the input end of the first valve 30 is connected with the detection port 22, the output end is used as a blowing port to output the standard alcohol gas when the first valve 30 is opened, as shown in fig. 1, 6 first valves 30 are provided in fig. 1, and correspond to 6 blowing ports F1-F6 respectively;
during work, an alcohol detector to be detected is arranged at each air blowing port, then, the control module 40 receives a detection command, so that the first valve 30 is opened, other first valves 30 and other second valves 50 are closed, standard alcohol gas output from the output port 11 flows to the air blowing port F1 through the gas transmission pipeline 20, air blowing detection is carried out on the alcohol detector arranged at the air blowing port F1, the alcohol detectors arranged at other air blowing ports are in a waiting detection state, when the requirement of the air blowing amount for air blowing detection on the alcohol detector is met, the first valve 30 is closed, the air blowing port F1 stops air blowing, the alcohol detector arranged at the air blowing port F1 is subjected to sampling analysis, and after the sampling analysis is finished, a measurement result is obtained, the detection result enters a recovery state;
after the first valve 30 is closed, the second first valve 30 is opened, other first valves 30 are still in a closed state, the air blowing port F2 starts to blow air to the alcohol detector arranged at the air blowing port F2, the alcohol detector arranged at the air blowing port F1 is synchronously sampled, analyzed and recovered while the air blowing port F2 blows air to the alcohol detector arranged at the air blowing port F2, when the requirement of the air blowing amount for performing air blowing detection on the alcohol detector is met, the second first valve 30 is closed, the air blowing port F2 stops blowing air, the alcohol detector arranged at the air blowing port F2 starts to perform sampling analysis, and the recovery state is entered after the measurement result is obtained after the sampling analysis is finished; subsequently, the third first valve 30 is opened, the air blowing port F3 starts to blow the alcohol detector arranged at the air blowing port F2, and the process is sequentially circulated until the 6 air blowing ports F1 to F6 all complete one-time air blowing, and the 6 alcohol detectors arranged at the 6 air blowing ports F1 to F6 all complete one-time measurement, that is, one-time air blowing is considered to be completed, 10 times of measurement are generally required to be performed on the same alcohol detector during metering inspection, and then 10 times of air blowing is required to complete the inspection of the 6 alcohol detectors.
During metering and checking, 10 times of measurement are generally required to be carried out on the same alcohol detector, so that after the first round of air blowing, subsequent second to tenth rounds of air blowing can be carried out continuously, and 10 times of measurement of each alcohol detector can be completed. Because a plurality of alcohol detectors measure successively and continuously, the former can blow the latter when the former finishes blowing and enters the sampling analysis stage, the time is fully utilized, the efficiency is improved, the generated standard alcohol gas is rarely wasted, the utilization rate is improved, and a better technical effect is achieved.
It should be noted that, in order to ensure the accuracy and continuity of the measurement, the utility model discloses still need to set up the parameter of blowing of each first valve 30 through control module 40, these parameters of blowing can include the first duration that corresponds each first valve 30 setting respectively, the first duration is the duration when this one first valve 30 is opened each time, also is the duration of blowing of each gas blow mouth one time, if set up the duration when each first valve 30 is opened each time and be 4.8 s; it is worth mentioning that the blowing time lengths of different blowing openings can be the same or different, and the blowing time lengths can be adjusted according to actual needs.
Further, set up first time length in order to guarantee that each alcohol detector homoenergetic sample to standard alcohol gas, based on this, the utility model discloses can also replace or cooperate the setting of blowing in the parameter for first time length with first flow and first volume, control module 40 controls each first valve 30 according to this and opens the flow of the standard alcohol gas of output every time and be first flow and the total volume of the standard alcohol gas of output for first volume, and the total volume of the standard alcohol gas of output is 15L/minute and output for every time if control each first valve 30 opens the flow of the standard alcohol gas of output every time and be 1.2L, this with set up each blowing mouthful blow for 4.8s long time have similar effect.
Because the alcohol detector needs recovery time, when multiple rounds of air blowing are continuously carried out, if the last alcohol detector of the previous round of air blowing finishes air blowing, but the first alcohol detector is still in a recovery state, the first alcohol detector cannot be immediately blown by the next round, the next round of blowing is started after the first alcohol detector is recovered, therefore, the blowing parameters of the present invention further include a third time period, the time interval between the control module 40 controlling the first valve 30 opened last in the n-th blowing to be closed to the first valve 30 opened first in the n + 1-th blowing is the third time period, n is a positive integer, that is, after the last alcohol detector in the n-th blowing is blown, and blowing the first alcohol detector with the n +1 th round after waiting for a third time.
Furthermore, the third time is the waiting time between two air blows, the utility model can disperse the third time into one air blow to continuously blow for two times, and the air blowing parameter includes the second time; the control module 40 controls the time interval from the closing of the first valve 30 to the opening of the second valve 30 of the two sequentially opened first valves 30 to be the second time interval, that is, the former alcohol detector needs to wait the second time interval after completing the air blowing to blow the latter alcohol detector, so as to ensure that the circular air blowing can be automatically and continuously performed.
In addition, in order to avoid the mouth of blowing to carry out the mistake when not laying the alcohol detector and blow, cause the waste of standard alcohol gas and the waste of examination time, the utility model discloses still discern whether every first valve 30 (the mouth of blowing) department has laid the alcohol detector. For example, an input button is disposed beside each first valve 30, when an alcohol tester is mounted at the first valve 30, the input button is pressed, and when the alcohol tester is not mounted, the input button is not pressed, the control module 40 determines which first valves 30 are mounted with alcohol testers according to the pressing condition of the input button, and when each round of air blowing is performed, the control module 40 only opens the first valves 30 mounted with alcohol testers, and the first valves 30 not mounted with alcohol testers are always closed, thereby avoiding waste of measuring time and standard alcohol gas.
Of course, it is also possible to use an alcohol meter automatic recognition device instead of the input button, and the alcohol meter automatic recognition device can automatically recognize whether the alcohol meter is mounted at each first valve 30 and inform the control module 40 of the alcohol meter, thereby eliminating the trouble of pressing the input button.
To sum up, the utility model provides a multichannel alcohol detector examines and determine and uses standard alcohol gas generator, include: the device comprises a generating device body, a gas transmission pipeline, a plurality of first valves and a control module; the generating device body is provided with an output port capable of outputting standard alcohol gas, and the gas transmission pipeline comprises an input port and a plurality of detection ports communicated with the input port; the input port is communicated with the output port, the input end of each first valve is correspondingly connected with one detection port, and the output end outputs standard alcohol gas when the first valve is opened; the equal electric connection of control end of a plurality of first valves control module, control module is used for receiving the test command, and according to each first valve of test command control is opened and is closed, through setting up a plurality of detection mouths to control each detection mouth respectively through a plurality of first valves and blow, can realize the continuous examination of a plurality of alcohol detector, promote standard alcohol gas utilization ratio and alcohol detector examination efficiency.
From the above, it is obvious to those skilled in the art that various other changes and modifications can be made according to the technical solution and the technical idea of the present invention, and all such changes and modifications should fall within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a multichannel alcohol detector examines and determine uses standard alcohol gas generating device which characterized in that includes: the device comprises a generating device body (10), a gas transmission pipeline (20), a plurality of first valves (30) and a control module (40);
the generating device body (10) is provided with an output port (11) capable of outputting standard alcohol gas, and the gas transmission pipeline (20) comprises an input port (21) and a plurality of detection ports (22) communicated with the input port (21);
the input port (21) is communicated with the output port (11), the input end of each first valve (30) is correspondingly connected with one detection port (22), and the output end outputs standard alcohol gas when the first valve (30) is opened;
the control ends of the first valves (30) are electrically connected with the control module (40), and the control module (40) is used for receiving a detection command and controlling the opening and closing of each first valve (30) according to the detection command.
2. The standard alcohol gas generator for multichannel alcohol testing as defined in claim 1, further comprising a second valve (50), said gas delivery line (20) further comprising an exhaust port (23) in communication with said input port (21);
the input end of the second valve (50) is communicated with the exhaust port (23), and the output end of the second valve (50) discharges waste gas when being opened.
3. The standard alcohol gas generator for multichannel alcohol detector assay as claimed in claim 2, wherein the control end of the second valve (50) is electrically connected to the control module (40), and the control module (40) is further configured to control the second valve (50) to open when all of the first valves (30) are closed and to close when any of the first valves (30) are open.
4. The standard alcohol gas generator for multichannel alcohol detector assay as claimed in claim 1, wherein the detection command comprises: a first command;
the first command is used to indicate whether the output of each first valve (30) is provided with an alcohol meter to be calibrated.
5. The standard alcohol gas generator for multichannel alcohol tester testing as claimed in claim 4, wherein the control module (40) is configured to control the first valves (30) of the alcohol testers to be tested at the output to be opened one by one according to the first command, and to control the first valves (30) of the alcohol testers not to be tested at the output to be kept closed.
6. The alcohol testing standard alcohol gas generator of claim 4, further comprising a first command generating module (60) for generating a first command according to whether the output of each first valve (30) is provided with an alcohol tester to be tested.
7. The alcohol testing standard alcohol gas generator of claim 6, wherein the first command generating module (60) is a plurality of input buttons respectively corresponding to the plurality of first valves (30) or a plurality of alcohol testing automatic recognition devices respectively corresponding to the plurality of first valves (30).
8. The standard alcohol gas generation device for multichannel alcohol detector verification as claimed in claim 1, wherein the test commands include a second command for setting the blowing parameters of the respective first valves (30).
9. The standard alcohol gas generator for multichannel alcohol detector certification as claimed in claim 8, wherein the insufflation parameters include a first time duration;
the control module (40) is used for controlling the duration of each opening of each first valve (30) to be a first duration according to a second command.
10. The standard alcohol gas generator for multichannel alcohol detector testing as claimed in claim 8, wherein the insufflation parameters include a first flow rate and a first volume;
the control module (40) is used for controlling the flow of the standard alcohol gas output by each time of opening of each first valve (30) to be a first flow and the total volume of the output standard alcohol gas to be a first volume according to a second command.
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| CN202020831180.9U CN212459702U (en) | 2020-05-18 | 2020-05-18 | Standard alcohol gas generating device for multi-channel alcohol detector verification |
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| CN202020831180.9U CN212459702U (en) | 2020-05-18 | 2020-05-18 | Standard alcohol gas generating device for multi-channel alcohol detector verification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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