Device, equipment and instrument for collecting radioactive waste gas

Abstract

The utility model relates to the technical field of radiopharmaceutical synthesis process equipment, in particular to a radioactive waste gas collecting device. The utility model provides a radioactive waste gas collecting device which comprises a synthesizer, a waste gas treatment bottle, a negative pressure pump and a waste gas collecting bag which are sequentially connected, and the waste gas treatment bottle comprises a first waste gas treatment bottle, a second waste gas treatment bottle and a third waste gas treatment bottle which are sequentially connected in series. The device provided by the utility model solves the problems that the radioactive gas overflows and the radiation dose of the working environment is too high in the actual operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of radioactive drug synthesis process equipment, in particular to a device for collecting radioactive waste gas. Background Art

[0002] Radioactive substances are very harmful to the human body. For example, they can cause damage to the central nervous system, blood system, and neuroendocrine system; they can cause changes in vascular permeability, leading to bleeding or infection, which has an impact on the entire body. The most common places for radioactive substances to invade the body are the respiratory tract and digestive tract.

[0003] During the radiopharmaceutical synthesis process, 11 C-CO2 usually exists in the form of gas and is easy to diffuse, causing the radiation dose in the workplace to exceed the standard, causing great impact on the health of workers.

[0004] Therefore, in the technical field of radiopharmaceutical synthesis process equipment, there is provided an improvement in 11 The equipment that prevents the leakage of radioactive gases and high radiation doses in the workplace during the synthesis of C-CO2 labeled drugs is very important. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a device for collecting radioactive waste gas, which solves the problems of radioactive gas overflow and high radiation dose in the working environment during actual operation.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] In a first aspect, a device for collecting radioactive waste gas is provided, the device comprising a synthesizer, a waste gas treatment bottle, a negative pressure pump and a waste gas collection bag connected in sequence, the waste gas treatment bottle comprising a first waste gas treatment bottle, a second waste gas treatment bottle and a third waste gas treatment bottle connected in series in sequence.

[0008] Preferably, the negative pressure pump is a micro negative pressure pump.

[0009] Preferably, the first exhaust gas treatment bottle includes a short intake pipe and a long exhaust pipe, the second exhaust gas treatment bottle includes a long intake pipe and a short exhaust pipe, and the third exhaust gas treatment bottle includes a long intake pipe and a short exhaust pipe.

[0010] Preferably, the output end of the synthesizer is connected to the short air inlet pipe of the first waste gas treatment bottle, the long exhaust pipe of the first waste gas treatment bottle is connected to the long air inlet pipe of the second waste gas treatment bottle, and the short exhaust pipe of the second waste gas treatment bottle is connected to the long air inlet pipe of the third waste gas treatment bottle.

[0011] Preferably, the treatment material in the second waste gas treatment bottle is sodium hydroxide solution.

[0012] Preferably, the treatment materials in the third waste gas treatment bottle are quicklime particles and activated carbon particles.

[0013] Preferably, the short exhaust pipe of the third waste gas treatment bottle is connected to the air inlet of the negative pressure pump.

[0014] Preferably, the exhaust port of the negative pressure pump is connected to the waste gas collection bag.

[0015] Preferably, a gas one-way valve is provided between the exhaust port of the negative pressure pump and the waste gas collecting bag.

[0016] In a second aspect, a device for collecting radioactive waste gas is provided, comprising the apparatus described in the utility model.

[0017] In a third aspect, an instrument for collecting radioactive waste gas is provided, comprising the device described in the utility model.

[0018] In the utility model, the first waste gas treatment bottle, the second waste gas treatment bottle and the third waste gas treatment bottle are all glass bottle washing bottles.

[0019] In the utility model, the connector of the short air intake pipe and the connector of the long exhaust pipe of the first waste gas treatment bottle are both corrosion-resistant polytetrafluoroethylene joints; the connector of the long air intake pipe and the connector of the short exhaust pipe of the second waste gas treatment bottle are both corrosion-resistant polytetrafluoroethylene joints, and the connector of the long air intake pipe and the connector of the short exhaust pipe of the third waste gas treatment bottle are both corrosion-resistant polytetrafluoroethylene joints.

[0020] Preferably, the exhaust port of the negative pressure pump is connected to the air inlet of the waste gas collection bag.

[0021] More preferably, the waste gas collection bag is also provided with an exhaust port of the waste gas collection bag.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] The first waste gas treatment bottle of the utility model uses a long exhaust pipe, and the second waste gas treatment bottle uses a long air inlet pipe, which can prevent the sodium hydroxide solution in the second waste gas treatment bottle from being sucked back, thereby preventing the pipeline in the synthesizer from being polluted.

[0024] The utility model provides a first waste gas treatment bottle. When the device for collecting radioactive waste gas stops running, even if the sodium hydroxide solution in the second waste gas treatment bottle is sucked back into the first waste gas treatment bottle, it will not pollute the pipeline in the synthesizer. In addition, even if there is sodium hydroxide solution in the first waste gas treatment bottle, when the device for collecting radioactive waste gas is running, the sodium hydroxide solution in the first waste gas treatment bottle will automatically flow into the second waste gas treatment bottle as the gas moves.

[0025] The sodium hydroxide solution used in the second waste gas treatment bottle of the utility model can better absorb the unreacted radioactive gas 11 C-CO2; The activated carbon particles pre-installed in the third waste gas treatment bottle can adsorb certain organic compounds to achieve the removal effect, and the quicklime particles pre-installed in the third waste gas treatment bottle can adsorb certain organic compounds and can adsorb unreacted radioactive gases again. 11 C-CO2.

[0026] The utility model uses a micro negative pressure pump, which is interlocked with the synthesizer when the synthesizer is running, and is automatically opened when it is needed, so that the radioactive gas can be collected more thoroughly; a gas one-way valve is arranged between the exhaust port of the micro negative pressure pump and the waste gas collection bag, and when the device for collecting radioactive waste gas stops, the radioactive gas in the waste gas collection bag can be prevented from overflowing from the air inlet of the waste gas collection bag before it is completely decayed, causing leakage of radioactive gas; if the pressure in the waste gas collection bag is slightly higher than the atmospheric pressure, while waiting for the radioactive gas to completely decay and have no radioactive hazard, the exhaust port of the waste gas collection bag is manually opened to release the gas, so as to provide conditions for the next synthesis use.

[0027] The device for collecting radioactive waste gas provided by the utility model is selected from a glass bottle, a gas washing bottle with good air tightness and a corrosion-resistant polytetrafluoroethylene joint, and has good air tightness, no gas leakage and corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following will be combined with specific implementations and examples to specifically explain the present invention, and the advantages and various effects of the present invention will be more clearly presented. It should be understood by those skilled in the art that these specific implementations and examples are used to illustrate the present invention, rather than to limit the present invention.

[0029] Throughout the specification, unless otherwise specified, the terms used herein should be understood as the meanings commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art to which the utility model belongs. In the event of a conflict, this specification takes precedence.

[0030] In the description of the present invention, the terms "first", "second", "third", etc. are only used to distinguish multiple similar elements, and are not intended to indicate any differences in importance or order between the elements; moreover, the terms "first", "second", "third", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying the number of the indicated technical features; thus, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features.

[0031] Figure 1 This is a schematic diagram of the overall structure of a device for collecting radioactive waste gas;

[0032] Figure 2 It is a schematic diagram of the structure of the connector of the waste gas treatment bottle;

[0033] Description of reference numerals:

[0034] 1-synthesizer; 2-first waste gas treatment bottle; 3-second waste gas treatment bottle; 4-third waste gas treatment bottle; 5-negative pressure pump; 6-gas one-way valve; 7-waste gas collecting bag; 8-exhaust port of waste gas collecting bag; 9-connector of the short air inlet pipe of the first waste gas treatment bottle; 10-connector of the long exhaust pipe of the first waste gas treatment bottle; 11-connector of the long air inlet pipe of the second waste gas treatment bottle; 12-connector of the short exhaust pipe of the second waste gas treatment bottle; 13-connector of the long air inlet pipe of the third waste gas treatment bottle; 14-connector of the short exhaust pipe of the third waste gas treatment bottle; 15-first PU air pipe; 16-second PU air pipe; 17-third PU air pipe; 18-fourth PU air pipe. DETAILED DESCRIPTION

[0035] Reference Figure 1 As shown, an embodiment of the utility model provides a device for collecting radioactive waste gas, which includes a synthesizer 1, a waste gas treatment bottle, a negative pressure pump 5 and a waste gas collection bag 7 connected in sequence, and the waste gas treatment bottle includes a first waste gas treatment bottle 2, a second waste gas treatment bottle 3 and a third waste gas treatment bottle 4 connected in series in sequence.

[0036] In one embodiment of the utility model, the first exhaust gas treatment bottle 2 includes a short intake pipe and a long exhaust pipe, the second exhaust gas treatment bottle 3 includes a long intake pipe and a short exhaust pipe, and the third exhaust gas treatment bottle 4 includes a long intake pipe and a short exhaust pipe.

[0037] In one embodiment of the utility model, the output end of the synthesizer 1 is connected to the short air inlet pipe of the first waste gas treatment bottle 2, the long exhaust pipe of the first waste gas treatment bottle 2 is connected to the long air inlet pipe of the second waste gas treatment bottle 3, and the short exhaust pipe of the second waste gas treatment bottle 2 is connected to the long air inlet pipe of the third waste gas treatment bottle 4.

[0038] In one embodiment of the present invention, the treatment material in the second waste gas treatment bottle 2 is a sodium hydroxide solution.

[0039] In one embodiment of the present invention, the content of the sodium hydroxide solution is 2 mol / L.

[0040] In one embodiment of the present invention, the treatment materials in the third waste gas treatment bottle 4 are quicklime particles and activated carbon particles.

[0041] In one embodiment of the present utility model, the short exhaust pipe of the third exhaust gas treatment bottle 4 is connected to the air inlet of the negative pressure pump 5 .

[0042] In one embodiment of the present invention, the negative pressure pump 5 is a micro negative pressure pump.

[0043] In one embodiment of the present invention, the exhaust port of the negative pressure pump 5 is connected to the waste gas collection bag 7 .

[0044] In one embodiment of the present invention, the exhaust port of the negative pressure pump 5 is connected to the air inlet of the waste gas collecting bag 7 .

[0045] In one embodiment of the present utility model, the waste gas collecting bag 7 is further provided with an exhaust port 8 of the waste gas collecting bag 7 .

[0046] In one embodiment of the present invention, a gas one-way valve 6 is provided between the exhaust port of the negative pressure pump 5 and the waste gas collection bag 7, and the gas one-way valve 6 controls the gas to only flow along the Figure 1 The gas can only move in the direction indicated by the arrow, that is, the gas can only move in the direction from the negative pressure pump 5 to the exhaust gas collection bag 7; it cannot move in the opposite direction, thereby avoiding exhaust gas backflow leakage and contamination of the negative pressure pump and its pipeline.

[0047] In one embodiment of the present utility model, the first waste gas treatment bottle 2, the second waste gas treatment bottle 3 and the third waste gas treatment bottle 4 are all glass bottle washing bottles.

[0048] Reference Figure 1-2 As shown, the connector 9 of the short air inlet pipe of the first exhaust gas treatment bottle and the connector 10 of the long exhaust pipe of the first exhaust gas treatment bottle are both corrosion-resistant polytetrafluoroethylene joints; the connector 11 of the long air inlet pipe of the second exhaust gas treatment bottle and the connector 12 of the short exhaust pipe of the second exhaust gas treatment bottle are both corrosion-resistant polytetrafluoroethylene joints, and the connector 13 of the long air inlet pipe of the third exhaust gas treatment bottle and the connector 14 of the short exhaust pipe of the third exhaust gas treatment bottle are both corrosion-resistant polytetrafluoroethylene joints.

[0049] It should be noted that the connector 9 of the short air inlet pipe of the first waste gas treatment bottle is used to connect the first PU air pipe 15 and the short air inlet pipe of the first waste gas treatment bottle, and the connector 10 of the long exhaust pipe of the first waste gas treatment bottle is used to connect the long exhaust pipe of the first waste gas treatment bottle and the exhaust end of the second PU air pipe 16; the connector 11 of the long air inlet pipe of the second waste gas treatment bottle is used to connect the air inlet end of the second PU air pipe 16 and the long air inlet pipe of the second waste gas treatment bottle, and the connector 12 of the short exhaust pipe of the second waste gas treatment bottle is used to connect the short exhaust pipe of the second waste gas treatment bottle and the exhaust end of the third PU air pipe 17; the connector 13 of the long air inlet pipe of the third waste gas treatment bottle is used to connect the air inlet end of the third PU air pipe 17 and the long air inlet pipe of the third waste gas treatment bottle, and the connector 14 of the short exhaust pipe of the third waste gas treatment bottle is used to connect the short exhaust pipe of the third waste gas treatment bottle and the exhaust end of the fourth PU air pipe 18.

[0050] In another embodiment of the utility model, a device for collecting radioactive waste gas is provided, comprising the apparatus of the utility model.

[0051] In yet another embodiment of the present invention, an instrument for collecting radioactive waste gas is provided, comprising the device of the present invention.

[0052] When the synthesizer starts synthesis, the waste gas generated is processed and collected by the radioactive waste gas collection device of the utility model. The waste gas passes through the first waste gas treatment bottle → the second waste gas treatment bottle → the third waste gas treatment bottle → the negative pressure pump → the gas one-way valve → the waste gas collection bag in sequence.

[0053] It should be understood that the utility model disclosed is not limited to the specific methods, schemes and materials described, because these can be changed. It should also be understood that the terms used here are only for the purpose of describing specific implementation schemes, rather than being intended to limit the scope of the utility model, and the scope of the utility model is only limited to the attached claims.

[0054] Those skilled in the art will also recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Such equivalents are also intended to be encompassed by the appended claims.

Claims

1. A device for collecting radioactive waste gas, characterized in that: The device comprises a synthesizer, a waste gas treatment bottle, a negative pressure pump and a waste gas collection bag which are connected in sequence, and the waste gas treatment bottle comprises a first waste gas treatment bottle, a second waste gas treatment bottle and a third waste gas treatment bottle which are connected in series in sequence.

2. The device according to claim 1, characterized in that The first exhaust gas treatment bottle includes a short intake pipe and a long exhaust pipe. The second exhaust gas treatment bottle includes a long intake pipe and a short exhaust pipe. The third exhaust gas treatment bottle includes a long intake pipe and a short exhaust pipe.

3. The device according to claim 2, characterized in that The output end of the synthesizer is connected to the short air inlet pipe of the first waste gas treatment bottle. The long exhaust pipe of the first exhaust gas treatment bottle is connected to the long intake pipe of the second exhaust gas treatment bottle. The short exhaust pipe of the second exhaust gas treatment bottle is connected to the long intake pipe of the third exhaust gas treatment bottle.

4. The device according to claim 2, characterized in that The treatment material in the second waste gas treatment bottle is sodium hydroxide solution.

5. The device according to claim 2, characterized in that The treatment materials in the third waste gas treatment bottle are quicklime particles and activated carbon particles.

6. The device according to claim 2, characterized in that The short exhaust pipe of the third waste gas treatment bottle is connected to the air inlet of the negative pressure pump.

7. The device according to claim 2, characterized in that The exhaust port of the negative pressure pump is connected to the waste gas collecting bag.

8. The device according to claim 7, characterized in that A gas one-way valve is arranged between the exhaust port of the negative pressure pump and the waste gas collecting bag.

9. A device for collecting radioactive waste gas, characterized in that: The invention comprises the device according to any one of claims 1 to 8.

10. An instrument for collecting radioactive waste gas, characterized in that: The invention comprises the device according to any one of claims 1 to 8.

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