阅读说明：本技术 一种输液管内游离态气氡监测装置及方法 (Device and method for monitoring radon in free state in infusion tube ) 是由 牛洁 徐乐昌 胡鹏华 陈刚 于 2020-04-24 设计创作，主要内容包括：本发明实施例公开了一种输液管内游离态气氡监测装置及方法,具体涉及气氡检测设备技术领域,包括由抽滤瓶、扩散器、干燥器和闪烁室组成的集气系统,具体步骤如下：步骤一：准备抽滤瓶、扩散器、干燥器和闪烁室；步骤二：通过玻璃管将抽滤瓶、扩散器、干燥器和闪烁室之间依次连接,由抽滤瓶、扩散器、干燥器和闪烁室组成一个完整的集气系统。本发明通过提前利用真空泵将集气系统进行抽空,可以有效提高对于输液管内气氡的检测准确率,且提前将集气系统进行抽空,当液体流入到抽滤瓶内,在打开闪烁室上的出气管,通过内外的气压差,可以有效提高抽滤瓶内的含氡气体进入到闪烁室内的速度,从而有效提高检测的效率。(The embodiment of the invention discloses a device and a method for monitoring free gas radon in a transfusion tube, and particularly relates to the technical field of gas radon detection equipment, wherein the device comprises a gas collection system consisting of a suction filter bottle, a diffuser, a dryer and a scintillation chamber, and the device comprises the following specific steps: the method comprises the following steps: preparing a filter flask, a diffuser, a dryer and a scintillation chamber; step two: the suction filtration bottle, the diffuser, the dryer and the scintillation chamber are connected in sequence through glass tubes, and the suction filtration bottle, the diffuser, the dryer and the scintillation chamber form a complete gas collection system. The gas collection system is evacuated in advance by utilizing the vacuum pump, so that the detection accuracy rate of radon in the infusion tube can be effectively improved, the gas collection system is evacuated in advance, when liquid flows into the suction filter flask, the gas outlet pipe on the scintillation chamber is opened, and the speed of radon-containing gas in the suction filter flask entering the scintillation chamber can be effectively improved through the internal and external gas pressure difference, so that the detection efficiency is effectively improved.)

1. The utility model provides a free state gas radon monitoring devices in transfer line which characterized in that: comprises a filter flask (1), a diffuser (6), a dryer (9) and a scintillation chamber (10); the filter flask (1), the diffuser (6), the dryer (9) and the scintillation chamber (10) are connected in sequence; the filter flask (1) comprises an upper nozzle (3) and a lower nozzle (2).

2. The radon monitoring device in free state in infusion tube of claim 1, wherein: the filter flask (1), the diffuser (6), the dryer (9) and the scintillation chamber (10) are connected in sequence through glass tubes.

3. The radon monitoring device in free state in infusion tube as claimed in claim 2, wherein: the joint of the glass tube is provided with a rubber sealing ring.

4. The radon monitoring device in free state in infusion tube as claimed in claim 2, wherein: the glass tube is also provided with a check valve.

5. The radon monitoring device in free state in infusion tube of claim 1, wherein: the body of the filter flask (1) is also provided with a scale strip.

6. The radon monitoring device in free state in infusion tube of claim 1, wherein: the volume of the filter flask (1) is set to 1L.

7. A method of using the free gas radon monitoring device in an infusion tube of claim 1, wherein: the method comprises the following steps:

the method comprises the following steps: the suction filtration bottle (1), the diffuser (6), the dryer (9) and the scintillation chamber (10) are connected in sequence through glass tubes to form a gas collection system;

step two: an upper nozzle (3) of the suction bottle (1) is connected with a vacuum pump, and a lower nozzle (2) is connected with a water pump;

step three: coating ZnS powder or pasting ZnS test paper on the inner wall of the scintillation chamber (10);

step four: vacuumizing the gas collection system by a vacuum pump;

step five: liquid in the gas collection system is pumped out into the suction filter flask (1) through a water pump; at the moment, the free radon gas enters a gas collection system;

step six: radon gas is contained in the suction filter bottle (1); after passing through a diffuser (6) and a dryer (9), introducing into a scintillation chamber (10);

step seven: radon concentration is measured and calculated.

8. The radon monitoring method in free state in infusion tube as claimed in claim 7, characterized in that: in the step one, three groups of gas collecting systems are arranged in total.

9. The radon monitoring method in free state in infusion tube as claimed in claim 7, characterized in that: in the second step, the upper nozzle (3) of the suction bottle (1) is connected with a vacuum pump through a rubber pipe, and the lower nozzle (2) is connected with a water suction pump through a rubber pipe.

10. The radon monitoring method in free state in infusion tube as claimed in claim 7, characterized in that: and in the seventh step, after the radon gas enters the scintillation chamber (10), the alpha particles emitted by the radon and the daughter enable ZnS on the inner wall inside the scintillation chamber (10) to flash, the gas collection system is communicated with the detection circuit, the detection circuit comprises a core processor, the signal is processed by the detection circuit to become usable signal pulses, the signals are sent to a middle fracture opening of the core processor, and the measurement of the radon concentration is realized by utilizing interrupt counting.

Technical Field

The embodiment of the invention relates to the technical field of gas radon detection equipment, in particular to a device and a method for monitoring free gas radon in an infusion tube.

Background

Radon (Radon), also known as , is a chemical element, denoted Rn. The radon is generally in the form of radon gas, is colorless, odorless and tasteless inert gas and has radioactivity. Radon is chemically inert and does not readily form compounds. Radon has no known biological effects. The radon gas molecule is a monoatomic molecule of radon atom, the radon gas is the heaviest one of the gases, and is also the only gas which is completely composed of radioactive isotopes under the conventional condition, because the radon is radioactive gas, after a person inhales in the body, alpha particles generated by decay of the radon can cause radiation damage in the respiratory system of the person to initiate lung cancer, and the radon has 27 isotopes, three common isotopes, which are all radionuclides. Radon in the atmosphere does not participate in chemical reaction, but rays generated by decay and short-life decay products generated by decay have the harmful effect on human health. The most harmful to human body is 222Rn and its decay products.

Therefore, in daily life, the content of radon gas in the infusion tube needs to be measured, and we can consider that the radon water in the leachate in the infusion tube is in a saturated state, but the radon water in the leachate needs to become escaping radon, so that a half minute to a minute is needed, and how to quickly collect the radon gas in the infusion tube before the radon water in the leachate escapes into the air is a key.

Disclosure of Invention

The invention aims to: the utility model provides a free state gas radon monitoring devices and method in transfer line, manage to find time the gas collecting system through utilizing the vacuum pump in advance, can effectively improve the detection accuracy rate to the interior radon of transfer line, and manage to find time the gas collecting system in advance, flow into the buchner flask when liquid in, the outlet duct on opening the scintillation chamber, through inside and outside air pressure difference, can effectively improve the speed that the radon-containing gas in the buchner flask enters into the scintillation chamber to effectively improve the efficiency that detects. .

The technical scheme of the invention is as follows: a monitoring device for radon in free state in a transfusion tube comprises a suction bottle, a diffuser, a dryer and a scintillation chamber; the filter flask, the diffuser, the dryer and the scintillation chamber are connected in sequence; the filter flask comprises an upper mouth and a lower mouth.

The filter flask, the diffuser, the dryer and the scintillation chamber are connected in sequence through glass tubes.

The joint of the glass tube is provided with a rubber sealing ring.

The glass tube is also provided with a check valve.

The body of the suction flask is also provided with a scale strip.

The volume of the filter flask was set to 1L.

A method for monitoring free radon in a transfusion tube comprises the following steps:

the method comprises the following steps: the suction filter bottle, the diffuser, the dryer and the scintillation chamber are connected in sequence through glass tubes to form a gas collection system;

step two: connecting an upper nozzle of the suction bottle with a vacuum pump, and connecting a lower nozzle with a water pump;

step three: coating ZnS powder or pasting ZnS test paper on the inner wall of the scintillation chamber;

step four: vacuumizing the gas collection system by a vacuum pump;

step five: pumping the liquid in the gas collection system into a suction filter flask through a water pump; at the moment, the free radon gas enters a gas collection system;

step six: the suction filter flask contains radon gas; after passing through a diffuser and a dryer, introducing into a scintillation chamber;

step seven: radon concentration is measured and calculated.

In the step one, three groups of gas collecting systems are arranged in total.

And in the second step, the upper nozzle of the suction bottle is connected with a vacuum pump through a rubber pipe, and the lower nozzle is connected with a water suction pump through a rubber pipe.

And seventhly, after the radon gas enters the scintillation chamber, enabling ZnS on the inner wall of the scintillation chamber to flash due to alpha particles emitted by the radon and the daughter of the radon gas, communicating the gas collecting system with a detection circuit, wherein the detection circuit comprises a core processor, the detection circuit is processed by the detection circuit to become available signal pulses, the signals are sent to a middle fracture opening of the core processor, and the radon concentration is measured by utilizing interrupt counting.

The invention has the following remarkable effects: through utilizing the vacuum pump to manage makeout the gas collection system in advance, can effectively improve the detection rate of accuracy to the interior gas radon of transfer line, and manage makeout the gas collection system in advance, flow into the buchner flask when liquid in, opening the outlet duct on the scintillation chamber, through inside and outside air pressure difference, can effectively improve the speed that contains the radon gas in the buchner flask and enter into the scintillation chamber, thereby effectively improve the efficiency that detects, and overall structure is reasonable, the cost is lower, can repeatedly use, the convenience of detection has effectively been improved.

Drawings

FIG. 1 is a schematic view;

in the figure: 1 suction filtration bottle, 2 lower nozzles, 3 upper nozzles, 6 diffusion bottles, 9 drying bottles and 10 scintillation chambers

Detailed Description

A monitoring device for radon in free state in a transfusion tube comprises a suction bottle 1, a diffuser 6, a dryer 9 and a scintillation chamber 10; the filter flask 1, the diffuser 6, the dryer 9 and the scintillation chamber 10 are sequentially connected through glass tubes, rubber sealing rings are arranged at the joints of the glass tubes, and check valves are further arranged on the glass tubes and used for preventing air inside the glass tubes from flowing backwards. The suction flask 1 comprises an upper nozzle 3 and a lower nozzle 2, a scale strip is further arranged on the body of the suction flask, and the volume of the suction flask 1 is 1L.

A method for monitoring free radon in a transfusion tube comprises the following steps:

the method comprises the following steps: the suction filter bottle 1, the diffuser 6, the dryer 9 and the scintillation chamber 10 are sequentially connected through the glass tubes to form a gas collection system, three groups of gas collection systems are arranged in total to carry out three times of measurement on the infusion pipeline, and therefore the measurement accuracy is improved

Step two: an upper nozzle 3 of a suction bottle 1 is connected with a vacuum pump through a rubber pipe, and a lower nozzle 2 is connected with a water pump through a rubber pipe;

step three: coating ZnS powder or pasting ZnS test paper on the inner wall of the scintillation chamber 10;

step four: vacuumizing the gas collection system by a vacuum pump;

step five: liquid in the gas collection system is pumped out to the inside of the suction bottle 1 through a water pump; at the moment, the free radon enters a gas collecting system

Step six: according to the flow specified in the method for measuring the radon content in the ambient air, the radon gas is contained in the suction filter bottle 1; after passing through a diffuser 6 and a dryer 9, is introduced into a scintillation chamber 10;

step seven: measuring and calculating radon concentration

After the radon gas enters the scintillation chamber 10, ZnS on the inner wall of the scintillation chamber 10 flashes due to alpha particles emitted by the radon and the daughters of the radon, the flashing is processed by the detection circuit to become usable signal pulses, and finally the usable signal pulses are transmitted to a middle fracture of the core processor, and the radon concentration is measured by utilizing interrupt counting.