Scintillation liquid supply device of biological oxidation combustion instrument

Abstract

The utility model discloses a scintillation liquid supply device of a biological oxidation combustion instrument in the field of radioactive test analysis, which comprises a mixed scintillation liquid bottle made of glass, a bottle cap made of rubber is arranged at a bottle opening of the mixed scintillation liquid bottle, and a liquid outlet of the mixed scintillation liquid bottle is communicated with the mixed scintillation liquid bottle. A main liquid supply pipe, a gas pipe and a liquid adding pipe which are made of quartz materials are respectively inserted into the mixed scintillation liquid bottle, the main liquid supply pipe, the gas pipe and the liquid adding pipe penetrate through the bottle cap, the upper ends of the main liquid supply pipe, the gas pipe and the liquid adding pipe extend out of the bottle cap, a one-way valve is arranged at the extending end of the gas pipe, and a one-way check valve is arranged on the liquid adding pipe extending out of the bottle cap. According to the utility model, the scintillation liquid can be prevented from being polluted by a plastic material, and the liquid supply pipe made of the quartz material is corrosion-resistant, non-discoloring, stable and reliable; radioactive test pungent odor generated during preparation and transfer of the mixed scintillation liquid is avoided, and the health of experiment operators is protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of radioactive test analysis technology, especially relates to a biological oxidation combustion appearance scintillation liquid liquid supply device. BACKGROUND

[0002] The biological oxidation combustion appearance can utilize oxygen, and completely burns biological samples and most organic matters under the condition of about 900 DEG C, and makes the product of combustion pass through a series of catalysts under the condition of about 680 DEG C, is absorbed by mixed scintillation liquid, and finally forms 14 CO2 and / or 3 H2O. Through liquid scintillation counting analyzer, the quantitative analysis of radioactive samples is realized. The biological oxidation combustion appearance is an indispensable part in the field of radioactive test analysis technology, therefore, optimizing the combustion instrument components and ensuring the stable operation state of the combustion instrument are of great significance to the radioactive test.

[0003] The double-layer plastic embedded pipe is the scintillation liquid supply pipeline provided by the current biological oxidation combustion appearance manufacturer, the structure provides the pipeline support and structural strength for the inner hard lining pipe, and the outer soft PU plastic sleeve provides the ductility for facilitating installation.

[0004] The mixed scintillation liquid is a solution used for absorbing radioactive components to form 14 CO2 and / or 3 H2O, is sucked into the combustion appearance body by the built-in pump pipe, is a clear transparent liquid, and generates extremely strong irritating odor during preparation and transfer. The color of the double-layer plastic embedded pipe below the liquid level changes from transparent to dark yellow after being corroded for a long time, and gradually pollutes the whole bottle of mixed scintillation liquid to brown color. The observation of the combustion completion during the oxidation combustion of biological samples is affected. The color has a great influence on the accuracy of quantitative analysis of the liquid scintillation counting analyzer, which is not allowed in the field of radioactive test analysis technology. INVENTION CONTENTS

[0005] The utility model discloses a biological oxidation combustion appearance scintillation liquid liquid supply device, can avoid the pollution of plastic material to the scintillation liquid, the quartz material liquid supply pipe is not discolored and is stable and reliable.

[0006] The utility model discloses a biological oxidation combustion appearance scintillation liquid liquid supply device, including mixed scintillation liquid bottle, the material of mixed scintillation liquid bottle is glass, and the bottle mouth of mixed scintillation liquid bottle is equipped with the bottle cap, and the material of bottle cap is rubber, and the main liquid supply pipe of quartz material, gas pipe and liquid adding pipe are inserted in mixed scintillation liquid bottle respectively, and the main liquid supply pipe, gas pipe and liquid adding pipe all set up through bottle cap, and the upper end of main liquid supply pipe, gas pipe and liquid adding pipe stretches out bottle cap, and the single -way valve is equipped on the gas pipe's end of stretching out, and the one -way stop valve is equipped on the liquid adding pipe of stretching out bottle cap.

[0007] As a further improvement of the utility model, the main liquid supply pipe is immersed in the mixed scintillation liquid of the mixed scintillation liquid bottle at the lower end, and the main liquid supply pipe is connected to the biological oxidation combustion appearance through the PU hose of corrosion resistance.

[0008] As a further improvement of the utility model, the gas in the mixed scintillation liquid bottle cannot flow outwards through the single -way valve.

[0009] As a further improvement of the utility model, the one -way stop valve is internally provided with a liquid passage, the liquid passage is internally provided with a front and back corresponding limiting sleeve one and limiting sleeve two, a gap is left between the limiting sleeve one and the limiting sleeve two, the limiting sleeve one is provided with openings at both ends, a valve ball is arranged between the limiting sleeve one and the limiting sleeve two, and the limiting sleeve two is arranged close to the mixed scintillation liquid bottle. The mixed scintillation liquid in the mixed scintillation liquid bottle cannot overflow outwards through the liquid adding pipe.

[0010] As a further improvement of the utility model, the inner diameters of the tube holes of the main liquid supply pipe, gas pipe and liquid adding pipe are all 3mm.

[0011] The biological oxidation combustion appearance scintillation liquid liquid supply device of the utility model is composed of three pipelines of the bottle mouth main liquid supply pipeline of quartz pipe material, gas pipeline and liquid adding pipeline, and is matched with the gas pipeline one -way check valve and the liquid pipeline one -way stop valve, so as to realize the scintillation liquid liquid supply function of the biological oxidation combustion appearance. According to actual operation needs, the functions of the device can be used alone or in any combination. The specific functions are as follows:

[0012] ①The material of the main liquid supply pipeline in the mixed scintillation liquid bottle is replaced by the quartz inner tube, which has high corrosion resistance and will not cause color pollution. The previous scintillation liquid corrosion of the double-layer plastic embedded pipe causes delamination and falling off, and the corrosion of the plastic lining pipe causes color pollution of the whole bottle of scintillation liquid.

[0013] ②Add quartz bottle mouth gas pipe and one-way check valve. During the use of the biological oxidation combustion instrument, as the volume of the scintillation liquid decreases, external air enters the gas pressure in the equilibrium bottle, and the gas in the bottle is in a semi-connected state with the external environment. The scintillation liquid will emit strong irritating odor at any time, which affects the operating environment and the health of the personnel. By adding the one-way check valve of the bottle mouth gas pipe, external air can enter the scintillation bottle to balance the gas pressure, but the volatile gas of the scintillation liquid cannot be discharged. The problem of the irritating odor of the scintillation liquid is greatly alleviated.

[0014] ③Add mixed scintillation liquid filling quartz pipe, and add a one-way liquid stop valve to the filling pipe. The preparation and transfer process of the mixed scintillation liquid has the strongest irritating odor, and the pouring and transfer of the scintillation liquid between the preparation bottle and the liquid supply bottle will generate a large amount of bubbles, which affects the accuracy of the test. Therefore, the mixed scintillation liquid filling quartz pipe is added, and a one-way liquid stop valve is added to the filling pipe. The scintillation liquid in the preparation bottle is slowly flowed into the liquid supply bottle by using the height difference pressure, which reduces the irritation of the odor to the operating personnel and the generation of bubbles of the scintillation liquid. At the same time, the one-way liquid stop valve can prevent the backflow of the liquid supply bottle, pollute the preparation bottle, and also block the path of the volatilization of the scintillation liquid from the filling pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that the device provides the scintillation liquid supply function for the biological oxidation combustion instrument, can avoid the pollution of the scintillation liquid by the plastic material, the quartz material liquid supply pipe is corrosion-resistant and does not change color, and is stable and reliable. The addition of the one-way check valve of the gas pipe reduces the volatilization efficiency of the scintillation liquid, and the use of the fume hood can reduce the influence of the irritating odor on the daily operation test personnel to the minimum. The one-way stop valve of the filling pipe and the liquid pipe can supply liquid by using the height difference pressure, reduce the bubbles generated by pouring, and more importantly, reduce the preparation and transfer of the mixed scintillation liquid, which is the most harmful operation step of the radioactive test, and has an influence on the health of the experimental operating personnel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structure diagram of the mixed scintillation liquid bottle.

[0017] Fig. 2 It is a perspective structure diagram of the mixed scintillation liquid bottle.

[0018] Fig. 3 It is a liquid flow direction diagram of the one-way stop valve.

[0019] Among them, 1 is a mixed scintillation liquid bottle, 2 is a bottle cap, 3 is a main liquid supply pipe, 4 is a gas pipe, 5 is a filling pipe, 6 is a one-way valve, 7 is a one-way stop valve, 7a is a liquid passage, 8 is a limiting sleeve one, 9 is a limiting sleeve two, and 10 is a valve ball. DETAILED DESCRIPTION

[0020] As Figs. 1-3The utility model discloses a kind of biological oxidation combustion instrument scintillation liquid supply devices, including mixed scintillation liquid bottle 1, the material of mixed scintillation liquid bottle 1 is glass, mixed scintillation liquid bottle 1 is equipped with bottle cap 2 at bottle mouth, the material of bottle cap 2 is rubber, mixed scintillation liquid bottle 1 is inserted with main liquid supply pipe 3 of quartz material, gas pipe 4 and liquid filling pipe 5 respectively, main liquid supply pipe 3, gas pipe 4 and liquid filling pipe 5 are all set through bottle cap 2, the upper end of main liquid supply pipe 3, gas pipe 4 and liquid filling pipe 5 is stretched out bottle cap 2, the stretched-out end of gas pipe 4 is equipped with one-way valve 6, and one-way check valve 7 is set on liquid filling pipe 5 that stretches out bottle cap 2.The lower end of main liquid supply pipe 3 is immersed in the mixed scintillation liquid of mixed scintillation liquid bottle 1, and main liquid supply pipe 3 is connected to biological oxidation combustion instrument by corrosion-resistant PU hose.The gas in the inside of mixed scintillation liquid bottle 1 cannot flow outwards by one-way valve 6.The inside of one-way check valve 7 is equipped with liquid passage 7a, and the inside of liquid passage 7a is equipped with front and rear corresponding limit sleeve one 8 and limit sleeve two 9, and gap is left between limit sleeve one 8 and limit sleeve two 9, and limit sleeve one 8 is equipped with opening at both ends, and limit sleeve two 9 is close to mixed scintillation liquid bottle 1 and is equipped with valve ball 10 between limit sleeve one 8 and limit sleeve two 9.The mixed scintillation liquid in the inside of mixed scintillation liquid bottle 1 cannot overflow outwards by liquid filling pipe 5.The pipe hole inside diameter of main liquid supply pipe 3, gas pipe 4 and liquid filling pipe 5 is 3mm.

[0021] The processing of the utility model 14 C biological oxidation combustion instrument scintillation liquid supply device of radioactive sample:

[0022] The quartz lining pipe orifice that extends to pump mouth is connected to biological oxidation combustion instrument by corrosion-resistant PU hose, and main road connection is completed to provide mixed scintillation liquid for biological oxidation combustion instrument.

[0023] Gas one-way valve 6 is connected at short inlet pipe, so that gas can only enter the inside of scintillation bottle from outside, and cannot volatilize and overflow. The pressure of external gas through gas one-way valve 6 is provided by the negative pressure in bottle formed by the liquid inlet pump of biological oxidation combustion instrument itself;

[0024] Mixed scintillation liquid bottle 1 inlet pipe is also made of quartz material, and the lower end is immersed in scintillation liquid, and the upper end is connected to liquid check valve at bottle mouth, so that the mixed scintillation liquid prepared can only enter the inside of scintillation bottle from outside to inside, cannot backflow, and the path of volatilization of scintillation liquid from liquid filling pipe 5 is blocked. The pressure of external mixed scintillation liquid entering scintillation bottle through liquid check valve is provided by siphon effect brought by height difference. When filling scintillation liquid, the mixed scintillation liquid bottle 1 prepared and empty bottle are placed on the desktop and under the table respectively, are connected to liquid check valve close to limit sleeve one 8 through hose at inlet, are filled with pipeline by injector, are removed gas one-way valve 6, and the scintillation bottle is slowly filled by siphon pressure.

[0025] The utility model mainly solves four application problems: 1, double -layer plastic embedded pipe is not resistant to corrosion and after corrosion, the inside and outside structure is easy to produce delamination, the outer layer structure becomes soft, and the strength reduces and falls off easily, and pollutes the scintillation liquid, 2, double -layer plastic embedded pipe after corrosion will occur color change, discoloration pollutes the whole bottle scintillation liquid, 3, mixed scintillation liquid strong irritating gas volatilization. In the use process of biological oxidation combustion instrument, with the scintillation liquid volume reduction, the external air enters the balance bottle gas pressure, the bottle gas and external environment are half intercommunication state, and the scintillation liquid will emit strong irritating smell all the time, influence operating environment and personnel health. 4, mixed scintillation liquid in the preparation transfer process irritating smell is maximum, and the scintillation liquid between the preparation bottle and the liquid supply bottle pours and transfers and produces a large number of bubbles, influences test accuracy.

[0026] The utility model is not limited to the above embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some replacement and deformation to some technical features in the disclosed technical content without creative labor, and these replacement and deformation are all within the protection scope of the utility model.

Claims

1. A bio-oxidative combustion instrument scintillation fluid supply device, characterized by, The mixed scintillation liquid bottle is made of glass, and a bottle cap made of rubber is arranged at the bottle mouth of the mixed scintillation liquid bottle.

2. The scintillation fluid supply device for a biological oxidation combustion apparatus according to claim 1, wherein The main liquid supply pipe, the gas pipe and the liquid adding pipe are all inserted into the mixed scintillation liquid bottle, and the main liquid supply pipe, the gas pipe and the liquid adding pipe all pass through the bottle cap and have upper ends extending out of the bottle cap.

3. The liquid supply device for a scintillation solution of a biological oxidation combustion apparatus according to claim 1 or 2, wherein The lower end of the main liquid supply pipe is immersed in the mixed scintillation liquid in the mixed scintillation liquid bottle, and the main liquid supply pipe is connected to the biological oxidation combustion instrument through a corrosion-resistant PU hose.

4. The liquid supply device for a scintillation solution of a biological oxidation combustion apparatus according to claim 1 or 2, wherein The gas in the mixed scintillation liquid bottle cannot flow outwards through the one-way valve.

5. The liquid supply device for a scintillation solution of a biological oxidation combustion apparatus according to claim 1 or 2, wherein The one-way liquid stop valve is internally provided with a liquid channel, and the liquid channel is internally provided with front and rear limiting sleeves one and two. The inner diameters of the pipe holes of the main liquid supply pipe, the gas pipe and the liquid adding pipe are all 3 mm.

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