KR100827714B1 - Breath alcohol simulators for breath alcohol tester - Google Patents

Abstract

Breath alcohol simulators for inspecting measurement accuracy of a breath alcohol tester are provided to maintain the standard temperature of solution within a short time and continuously maintain saturated state of gas by promoting solution heating and vaporization, maximize temperature stability of testing gas, and prevent measurement inaccuracy due to deficiency or excess of alcohol gas by controlling the amount of released gas. A breath alcohol simulator for inspecting measurement accuracy of a breath alcohol tester comprises: a controller in a housing(20A); a reaction tank(29) having a storage tank(32A) for storing distilled water and a heating tank(32B) for maintaining the standard temperature of the distilled water; a sample-introducing means for supplying a standard alcohol sample to the storage tank for preparing alcohol solution, installed in the outer side of the reaction tank; a pumping means for suctioning alcohol solution from the storage tank to spray the alcohol solution into the heating tank, and suctioning the outer air to supply the outer air into the storage tank; and a measurement part(26) for measuring concentration of alcohol solution by inducing alcohol reaction gas generated from the storage tank to a release pipe(45).

Description

Breath alcohol simulators for alcohol concentration calibration of breathalyzers

1 is a view schematically showing the configuration of a general breath alcohol test apparatus,

Figure 2 is a plan view showing the cover of the breath alcohol test apparatus according to the invention in the open state,

3 is a vertical cross-sectional view for explaining the internal configuration of the housing shown in FIG.

4 is a cross-sectional plan view for explaining the internal configuration of the housing shown in FIG.

5 is a configuration diagram for explaining the operating relationship of the reaction vessel,

6 is a side cross-sectional view of the reservoir;

7 is a side cross-sectional configuration diagram of the heating bath.

* Description of the symbols for the main parts of the drawings *

20A: Housing 20B: Cover

21: control unit 24A: piston

24B: Cylinder 25: Breathalyzer

26: measuring unit 29: reactor

32A: reservoir 32B: heating vessel

34: circulation pump 35: distribution pipe

36: injection nozzle 37: air pump

38: inlet pipe 39a: check valve

39b: spout 40A: halogen lamp

40B: ceramic heating heater 41: induction tube

42: diffuser 43: three-way valve

44: injection pipe 45: discharge pipe

47A: Flow Controller 47B: Flow Meter

49: connection

The present invention relates to a respiratory alcohol test apparatus for alcohol concentration calibration of a breathalyzer, and more particularly, to test the accuracy of the alcohol concentration measured in the human breath by the breathalyzer at a certain temperature under a certain temperature Respiratory alcohol test apparatus for the alcohol concentration calibration of the breathalyzer for measuring the accuracy of the breathalyzer by discharging the reactor generated by the.

In general, a lot of controversy has been raised depending on the accuracy of the breathalyzer based on the drought crackdown and legal judgment by traffic police, and the alcohol concentration measurement value of the breathalyzer is constant according to the accuracy of calibration equipment. There is a problem of not doing so, but there are no measures yet.

At present, wet bath simulators, which are used as conventional breath alcohol test apparatuses, control the temperature of the alcohol solution administered in the reactor 10 by the control unit 11 as shown in FIG. It is provided with a heating heater 12, a temperature sensor 13A, a thermometer 13B, etc. to maintain the phosphorus at 34 ℃, the air inlet 14 and the reactor outlet 15 is formed at both ends of the mountain stone ( 16) bubbles are generated and stirred by the rotating plate 17 so as to generate a reactor body.

In such a test apparatus, after reaching the reference temperature on the heating structure of the solution, the temperature of the solution is large due to the influence of the heater latent heat, and the acid in which the external air supplied by the air pump (not shown) is immersed in the solution. Since the bubbles generated while passing through the pores 16 are dissolved by alcohol and provided to the reactor outlet 15, the alcohol concentration imbalance of the reactor may occur depending on the amount of air introduced therein. There is a problem that the measurement waiting time for the gas in saturation to reach saturation becomes long.

In addition, the test apparatus as described above has a problem that when the inlet air temperature is low according to the measurement environment, the temperature of the exhaust gas is lowered or the solution heating time is delayed, and accurate measurement test is difficult due to the condensation of the outlet. .

In addition, when the concentration of alcohol solution was increased, the entire solution in the reactor had to be replaced, as well as the problem of having to reheat one by one.

The present invention is to solve the above problems, an object of the present invention is to heat the thermal characteristics of a ceramic heating heater and a halogen lamp through a horizontal tunnel type reaction tank separated into a heating tank and a storage tank in heating a standard alcohol solution to a reference temperature Promotes the heating and vaporization of the solution by using a to provide a breath alcohol test apparatus for the alcohol concentration calibration of the breathalyzer to maintain the solution at the reference temperature within a short time and to maintain the saturation of the gas continuously .

In addition, the present invention can maintain the temperature stability of the measurement gas to the maximum by sensing the temperature of the exhaust gas to compensate the temperature of the outside air supplied to the reaction tank, the amount of gas discharged during the inspection test of the breathalyzer The present invention provides a respiratory alcohol test apparatus for correcting the alcohol concentration of a breathalyzer that can be adjusted to prevent the inaccuracy of the measurement due to the lack or excessive amount of alcohol gas.

In addition, the present invention enables automatic control of the temperature change and measurement steps of the solution and gas, as well as the preparation of the alcohol solution by the concentration of a separate sample injection means for the alcohol concentration calibration of the portable breathalyzer To provide a breath alcohol tester.

The present invention for achieving the above object, the breath alcohol test apparatus for calibrating the alcohol concentration of the breathalyzer, the control unit provided on the housing, the reservoir and distilled water flowed in from one end of the reservoir and the distilled water A reaction tank configured to be divided into a heating tank for maintaining a reference temperature, a sample injection means for providing the storage tank with a standard alcohol sample disposed outside the reaction tank for preparing an alcohol solution having a measured concentration, and the storage tank. A pumping means for sucking the alcoholic solution from the tank and injecting it into the heating tank and sucking external air and supplying it to the reservoir, and measuring the concentration of the alcoholic solution by guiding the alcohol reactant generated in the reservoir into the discharge pipe. It is characterized by consisting of wealth.

Here, the control unit is equipped with a setting temperature panel and a setting knob including an on / off switch and a measurement button, and a halogen lamp and a ceramic heating heater are disposed above and below the heating chamber, respectively. It features.

In addition, the control unit is configured to check the values of the first and second temperature sensors provided in the reservoir and the measuring unit to control the operation of the halogen lamp and the ceramic heating heater and the heating wire heater provided in the discharge pipe in the heating tank. It is done.

An inlet pipe for circulating gas inside the heating tank is connected to the storage tank through a partition wall at one side of the heating tank, and an diffuser is connected to the tip of the inlet pipe.

The sample injection means is equipped with a piston and a cylinder equipped with a rotary knob and mounted on the bracket, characterized in that the rear end of the cylinder consists of an injection tube connected to the reservoir via a three-way valve.

The pumping means has an inlet pipe for supplying air into the heating tank by an air pump, including an injection nozzle connected to the heating tank and a storage tank from a circulation pump disposed at one side of the reaction tank and into the heating tank. It is characterized by that.

The inlet pipe of the air pump is provided with a blowout port including a check valve, characterized in that the distribution pipe connected to the circulation pump is configured to be heated by the heat generating heater in the heating tank.

A heating wire heater is provided in the discharge pipe circulated to the measuring unit, and a hemispherical connecting piece having a second temperature sensor at the end thereof is mounted on the outside of the housing connected to the discharge pipe in series with the flow regulator and the flow meter. It is done.

Hereinafter, a preferred embodiment of the breath alcohol test apparatus for alcohol concentration calibration of the breathalyzer according to the present invention will be described in detail.

2 and 3 are external views for explaining the test apparatus of the present invention, which is composed of a box-shaped housing 20A and a cover 20B so as to be portable or moveable, and on the housing 20A, the electrical A sample injection means is provided for supplying a standard alcohol sample (C ₂ H 50 H 5%) for preparing an alcohol solution, including a normal control unit 21 for operation.

The control unit 21 is equipped with a set temperature panel 22a, and a setting knob 22d, including an on / off switch 22b and a measurement button 22c, is installed in the periphery thereof. The means consists of a cylinder 24B and a piston 24A mounted on a bracket 23 of the housing 20A and equipped with an injection rotary knob 24C.

In addition, one side on the housing 20A is provided with a measuring unit 26 for mounting and measuring the breathalyzer 25.

As shown in Figs. 4 to 6, inside the housing 20A, a reaction tank 29 is provided which extends inward from the stopper 28 in which airtightness is maintained by the O-ring 27, and the reaction tank 29 is provided. Is divided into a storage tank 32A in which the alcohol solution is stored by the partition wall 31 having the lower communicating portion 30, and a heating tank 32B for heating the alcohol solution to a reference temperature.

The communication section 30 is provided with a check valve (not shown) which is opened and closed by a predetermined pressure in the heating tank 32B, and serves as a means for maintaining the pressure in the heating tank 32B.

On the outer side of the reaction tank 29, a pumping means for sucking the alcohol solution from the storage tank 32A and injecting it into the heating tank 32B, and for sucking the air and supplying it to the storage tank 32A side, is provided. At the bottom of one side, a first temperature sensor 33 for detecting the temperature of the solution is provided.

In addition, the pumping means has a circulation pipe (35) leading from the circulation pump 34 disposed on one side of the reaction tank (29) to the heating tank (32B) and the storage tank (32A) and simultaneously connected to the heating tank (32B). It consists of an inlet pipe (38) for supplying air into the heating tank (32B) by the air pump (37), including the injection nozzle (36), which includes a check valve (39a). A jet port 39b is provided.

Halogen lamps 40A and ceramic heating heaters 40B are disposed on the upper and lower sides of the heating tank 32B, respectively, and on one side thereof, an induction pipe 41 for distributing gas inside the heating tank 32B. It connects to 32 A of storage tanks through this partition 31, and the diffuser pipe 42 is connected to the front-end | tip of this induction pipe 41. As shown in FIG.

In the reservoir 32A, an injection tube 44 connected through a three-way valve 43 from the cylinder 24B into which the sample is injected is connected into the reservoir 32A, and an inlet of the discharge tube 45 disposed at the upper end thereof. It is comprised so that the reactive body generate | occur | produced in the storage tank 32A via 45a may be supplied to the measuring part 26 which extends outside the housing 20A.

In addition, a hot wire heater 46 is provided in the upper space portion of the reaction tank 29 through which the discharge pipe 45 passes, and a flow regulator 47A and an outer side of the housing 20A connected to the discharge pipe 45. A hemispherical connecting piece 49 is connected to the flow meter 47B in series and at the end thereof connected to a second temperature sensor 48 for measuring the temperature of the reactor body and a breathalyzer 25.

According to the present invention configured as described above, first, the stopper 28 of one side of the reaction tank 29 is opened, a predetermined amount of distilled water is injected into the storage tank 32A, and the drinking meter 25 to be measured is the hemispherical shape of the measuring unit 26. It comes in close contact with the connecting piece 49.

Subsequently, a predetermined standard alcohol sample (C ₂ H50H 5%) was filled into the cylinder 24B on the housing 20A based on the criteria of the Korea Research Institute of Standards, and then a predetermined amount was injected for preparing an alcohol solution of the reference concentration to be measured. It is supplied into the reservoir 32A through the pipe 44.

This sample is prepared by injecting a standard alcohol sample into a predetermined amount of distilled water filled in the storage tank 32A by alcohol concentration to prepare a reference alcohol solution for a measurement test, and also gradually to a high concentration measurement test. You can do it.

In the above state, by operating the device by pressing the on / off switch 22b provided in the control unit 21, including the halogen lamp 40A and the heating heater 40B installed in the heating tank 32B The circulation pump 34 is operated.

After that, when the alcohol solution of the reservoir 32A reaches the reference temperature (34 ° C.), the halogen lamp 40A, the heating heater 40B and the circulation pump 34 are stopped and the lamp of the measuring button 22c is turned on. When the measurement preparation is completed and the measurement button 22c is pressed, the air pump 37 and the circulation pump 34 operate to discharge the measurement gas to the measurement unit 26.

At this time, since a heating wire heater 46 capable of preheating the air is provided at one side of the reaction tank 29 inside the housing 20A, the temperature of the air introduced according to the temperature of the measured alcohol gas discharged to the measuring unit 26 is determined. Compensation for offset can be performed to perform precise measurement test without being influenced by external temperature depending on measurement test location.

By the operation of the circulation pump 34, suction of the alcohol solution is started through the distribution pipe 35 under the reservoir 32A, and the alcohol solution is discharged from the spray nozzle 36 mounted on the heating tank 32B. After being injected onto the surface of the halogen lamp 40A, it is circulated back to the storage tank 32A via the communication portion 30 formed at the bottom of the partition wall 31.

In addition, the external air preheated by the hot wire heater 46 is sucked into the heating tank 32B through the inlet pipe 38 and the jet port 39b as the air pump 37 operates, and at the same time, the induction pipe 41 is opened. It is supplied to the storage tank 32A side, and is bubbled by the diffuser 42 provided in the lower end of this storage tank 32A, and it blows out with alcohol gas.

On the other hand, the first temperature sensor 33 installed in the reservoir 32A and the second temperature sensor 48 disposed in the measuring unit 26 check the value detected at each position according to the halogen lamp ( The operation of the 40A) and the ceramic heating heater 40B and the heating wire heater 46 is controlled to display the set temperature panel 22a of the controller 21 and operate to maintain a constant temperature.

The alcohol gas generated in the reservoir 32A by the above-described process is supplied to the discharge pipe 45 through the inlet 45a, and the flow regulator 47A is installed to control the discharge amount outside the housing 20A. The accuracy of the breathalyzer 25 can be measured by being provided to the connection piece 49 side via the flowmeter 47B.

At this time, the gas discharged from the reservoir 32A can be adjusted according to the characteristics of the breathalyzer 25 by the flow controller 47A and the flow meter 47B provided in the measuring unit 26, Inaccuracies in measurement due to lack or oversight can be prevented.

The above-described embodiment is described with respect to the most preferred configuration of the present invention, and is not limited to these, and further modifications are possible without departing from the technical spirit of the present invention.

As described above, according to the breath alcohol test apparatus for the alcohol concentration calibration of the breathalyzer according to the present invention, by using a horizontal tunnel type reaction tank composed of a heating tank and a storage tank of the ceramic heating heater and the halogen lamp disposed in the heating tank Due to the thermal reaction characteristics, the solution of the reservoir is heated while circulating, and after the solution of the reservoir reaches the reference temperature, the circulation is stopped to solve the instability of the solution temperature due to the latent heat of the heater. In addition, the heating and vaporization of the solution in the reaction vessel can be promoted to maintain the saturation of the gas and the time at which the solution reaches the reference temperature within a short time.

In addition, in the present invention, since the gas saturation state is activated by the evaporation process in the process of spraying the solution supplied to the heating tank surface of the high temperature halogen lamp, even if the volume of gas compared to the solution of the reaction tank is large, the concentration stability of the reactor It is possible to maintain the work efficiency of the test apparatus.

According to the present invention, the alcohol solution at the time of the measurement test can be prepared by a simple sample injection means, so that it is possible to easily perform the measurement test by concentration of the breathalyzer. It is effective and can be used in a laboratory or a vehicle because it is free to carry and move.

Claims (10)

In the breath alcohol test apparatus for alcohol concentration calibration of the breathalyzer, The control unit 21 provided on the housing 20A, A reaction tank 29 which is divided into a storage tank 32A in which distilled water introduced from one end is stored, and a heating tank 32B for maintaining the distilled water at a reference temperature; A sample injection means arranged outside the reaction tank 29 to provide a standard alcohol sample for preparing an alcohol solution having a measured concentration to the storage tank 32A; Pumping means for sucking the alcohol solution from the storage tank 32A and injecting it into the heating tank 32B, and at the same time sucking outside air and supplying it to the storage tank 32A side; Breathing for adjusting the alcohol concentration of the breathalyzer, characterized in that consisting of a measuring unit 26 for measuring the concentration of the alcohol solution by inducing the alcohol reactant generated in the reservoir 32A into the discharge pipe (45). Alcohol testing device. 2. A control knob (21) according to claim 1, characterized in that the control knob (21) is provided with a setting knob (22d) including a set temperature panel (22a) and an on / off switch (22b) and a measurement button (22c). Breath alcohol tester for alcohol level calibration. The alcohol concentration calibration of the breathalyzer according to claim 1 or 2, wherein halogen lamps 40A and ceramic heating heaters 40B are disposed above and below the heating tank 32B, respectively. Breath alcohol testing device for 3. The heating tank 32B according to claim 1, wherein the control unit 21 checks the values of the first and second temperature sensors 33 and 48 provided in the storage tank 32A and the measuring unit 26. Respiration alcohol test apparatus for alcohol concentration calibration of the breathalyzer, characterized in that configured to control the operation of the halogen lamp (40A) and the ceramic heating heater (40B) and the heating wire heater (46) provided in the discharge pipe (45). The induction pipe 41 for circulating gas in the heating tank 32B is connected to the storage tank 32A via the partition 31 at one side of the heating tank 32B. Respiratory alcohol test apparatus for alcohol concentration calibration of the breathalyzer, characterized in that the diffuser 42 is connected to the tip of the tube (41). 2. The sample injection means according to claim 1, wherein the sample injection means has a piston (24A) and a cylinder (24B), which are mounted on the bracket (23) and equipped with a rotary knob (24C), at the rear end of the cylinder (24B). Respiratory alcohol test apparatus for alcohol concentration calibration of the breathalyzer, characterized in that consisting of the injection pipe 44 is connected through the valve 43 into the reservoir (32A). The heating tank (32B) according to claim 1, wherein the pumping means has a circulation pipe (35) leading from the circulation pump (34) disposed at one side of the reaction tank (29) to the heating tank (32B) and the storage tank (32A). Inlet pipe 38 for supplying air into the heating tank 32A by the air pump 37, including the injection nozzle (36) connected to the alcohol concentration calibration of the breathalyzer, characterized in that Breath alcohol tester. The breathing alcohol test apparatus for correcting the alcohol concentration of the breathalyzer according to claim 7, wherein the inlet pipe 38 of the air pump 37 is provided with a jet port 39b including a check valve 39a. . 10. The breathalyzer according to claim 7 or 8, wherein the circulation pipe (35) connected to the circulation pump (34) is configured to be heated by the exothermic heater (40B) in the heating tank (32B). Breath alcohol tester for alcohol level calibration. The heat heater 46 is provided in the discharge pipe 45 which flows to the said measurement part 26, The flow regulator 47A and the exterior of the housing 20A which connect with this discharge pipe 45, Respiratory alcohol tester for alcohol concentration calibration of a breathalyzer, characterized in that the flow meter (47B) is connected in series and at the end thereof is mounted a hemispherical connecting piece (49) having a second temperature sensor (48).

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