CN203025021U - Active carbon box for radon gas measurement - Google Patents
Active carbon box for radon gas measurement Download PDFInfo
- Publication number
- CN203025021U CN203025021U CN 201220521823 CN201220521823U CN203025021U CN 203025021 U CN203025021 U CN 203025021U CN 201220521823 CN201220521823 CN 201220521823 CN 201220521823 U CN201220521823 U CN 201220521823U CN 203025021 U CN203025021 U CN 203025021U
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- CN
- China
- Prior art keywords
- active carbon
- cylindrical shell
- activated charcoal
- outlet nozzle
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an active carbon box for radon gas measurement. The active carbon box comprises a cylinder body and a sealing cover at the upper part of the cylinder body, wherein an air inlet and an air outlet are arranged on the cylinder body and are respectively positioned on two sides of the cylinder body. When a static absorption mode is adopted, the air inlet and the air outlet can be directly sealed. After the sealing cover at the upper part of the cylinder body is opened, active carbon is loaded for absorbing radon. After the radon is absorbed, the active carbon box is flatly placed on a detector for measurement. When a pumping acquiring method is adopted, the active carbon is firstly loaded in the active carbon box, then the sealing cover and the cylinder body are screwed down and the cylinder body is connected with a pump through the air inlet or outlet for pumping/exhausting acquisition; after the acquisition is finished, the air inlet and the air outlet are sealed, and then the active carbon box is directly flatly placed on the detector for measurement. The active carbon box is simple in structure, easy to use, and accurate in detection result.
Description
Technical field
The utility model relates to and is used for the activated charcoal that radon gas gathers in a kind of measuring appliance, particularly radon measurement.
Background technology
Measure radon gas with activated carbon box method, comprise and measure radon gas or radon in soil gas in Radon gas, water, the stronger activated charcoal of adsorptive power of normally packing in a container, and this container is placed in test environment, make activated charcoal fully adsorb radon gas within a period of time, perhaps by pump with container that activated charcoal is housed of the radon gas suction in test environment, thereby can have the radioactivity of the activated charcoal container of radon gas to calculate the concentration of radon in test environment by measurement collection.What early use is a kind of activated charcoal with screw top, is convenient to the sealing with the charcoal box of picking and placeing of activated charcoal.But at present, for fear of the impact of the natural conditions such as the temperature in long-time slowly absorption acquisition mode, humidity, usually adopt the pump suction type sample mode to carry out radon gas collection and absorption, and this activated charcoal can't not use owing to there is no corresponding pore.In addition, a kind of activated charcoal that adopts pump suction type to gather being arranged, is at screw top and charcoal box bottom center, a valve to be set respectively, is used for taking out/radon gas of casting earth, realizes shortening the sampling time, improves the effect of sampling efficiency.But the valve of this activated charcoal is arranged on the bottom of box body, can't firmly place during measurement with detector on, perhaps the surface design of detector had Secretary, also can exert an influence to the measurement of sample.
The utility model content
The utility model provides a kind of radon survey activated charcoal that is simple and easy to use.
The technical solution of the utility model is: a kind of radon survey activated charcoal, comprise the gland bonnet on cylindrical shell and cylindrical shell top, and cylindrical shell is provided with admission piece and outlet nozzle.
Press such scheme, described admission piece and outlet nozzle are in the symmetria bilateralis setting of cylindrical shell.
Press such scheme, there is sealing ring described admission piece and outlet nozzle outer end.
Press such scheme, described admission piece and outlet nozzle and cylindrical shell be formed in one or with cylindrical shell be detachable components assembling.
Press such scheme, described admission piece and outlet nozzle and when assembling for detachable components, admission piece and outlet nozzle the inner are provided with the screw type screw.
Press such scheme, described gland bonnet is connected with cylindrical shell upper end spiral.
Press such scheme, described admission piece and outlet nozzle internal diameter are 2mm ~ 9mm, and length is 5mm ~ 40mm.
Press such scheme, the diameter of described activated charcoal is 76mm, height 20mm ~ 75mm.
The beneficial effects of the utility model are: the utility model is comprised of lid, cylindrical shell, admission piece and outlet nozzle etc., both has been applicable to the method for Static Adsorption, also can be used for the pump suction type acquisition method.
When adopting the method for Static Adsorption, can directly be sealed into gas port and gas outlet.By opening upper cover, the activated charcoal of packing into adsorbs radon gas.Adsorb completely, lie against on detector and measure.
When adopting the pump suction type acquisition method, in the charcoal box of first activated charcoal being packed into, then screwing hermetic upper cover and cylindrical shell, be connected with pump by air intake opening or gas outlet again, take out/the exhaust collection, gather complete, be sealed into again gas port and gas outlet, directly keep flat to be placed on detector and measure.
The utility model is simple and easy to use, and testing result is accurate.
Description of drawings:
Fig. 1 is the activated charcoal structural drawing of an embodiment of the utility model.
Fig. 2 is the activated charcoal structural drawing of another embodiment of the utility model.
Embodiment
Embodiment 1
As shown in fig. 1, this activated charcoal comprises the cylindrical shell 3 of truncated cone-shaped, and cylindrical shell 3 tops have gland bonnet 1, cylindrical shell 3 both sides to have admission piece 2 and outlet nozzle 4, admission piece 2 and outlet nozzle 4 outer ends that the sealing ring of sour jujube ditch shape is arranged.Admission piece 2 and outlet nozzle 4 are the detachable components assembling, and there is the screw of screw type its inner.Activated charcoal is packed into after this activated charcoal, gland bonnet 1 is tightened, connect the collector of admission piece and Soil Radon with flexible pipe, then connect outlet nozzle and air pump with flexible pipe, then start air pump and bleed, exhaust gas again sealing into and out of valve.
Activated charcoal cylindrical shell 3 diameters are 76mm, are highly 36mm, and admission piece 2 and outlet nozzle 4 internal diameters are 4.5mm, and length is 15mm.
As shown in Figure 2, this activated charcoal comprises the cylindrical shell 3 of truncated cone-shaped, and cylindrical shell 3 tops have gland bonnet 1, cylindrical shell 3 symmetria bilateralis to be provided with admission piece 2 and outlet nozzle 4, and there is sealing ring admission piece 2 and outlet nozzle 4 outer ends, and admission piece 2 and outlet nozzle 4 are formed in one with cylindrical shell.Gland bonnet 1 is connected with cylindrical shell 3 upper end spirals.Activated charcoal is packed into after this activated charcoal, gland bonnet 1 is tightened, connect the collector of admission piece and Soil Radon with flexible pipe, then connect outlet nozzle and air pump with flexible pipe, then start air pump and bleed, exhaust gas again sealing into and out of valve.
Admission piece and outlet nozzle internal diameter are 2mm, and length is 40mm.The diameter of cylindrical shell 3 is 76mm, height 20mm.
Claims (8)
1. activated charcoal that is used for radon survey comprises the gland bonnet on cylindrical shell and cylindrical shell top, and it is characterized in that: cylindrical shell is provided with admission piece and outlet nozzle.
2. activated charcoal as claimed in claim 1 is characterized in that: there is sealing ring described admission piece and outlet nozzle outer end.
3. activated charcoal as claimed in claim 1, it is characterized in that: described admission piece and outlet nozzle are in the symmetria bilateralis setting of cylindrical shell.
4. described activated charcoal as arbitrary in claims 1 to 3 is characterized in that: described admission piece and outlet nozzle and cylindrical shell be formed in one or with cylindrical shell be the detachable components assembling.
5. activated charcoal as claimed in claim 4, it is characterized in that: described admission piece and outlet nozzle internal diameter are 2mm ~ 9mm, length is 5mm ~ 40mm.
6. activated charcoal as claimed in claim 4 is characterized in that: when described admission piece and outlet nozzle and cylindrical shell were the detachable components assembling, the inner was provided with the screw type screw.
7. activated charcoal as claimed in claim 1 is characterized in that: described gland bonnet is connected with cylindrical shell upper end spiral.
8. activated charcoal as claimed in claim 1, it is characterized in that: the diameter of described cylindrical shell is 76mm, height 20mm ~ 75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521823 CN203025021U (en) | 2012-10-12 | 2012-10-12 | Active carbon box for radon gas measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521823 CN203025021U (en) | 2012-10-12 | 2012-10-12 | Active carbon box for radon gas measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025021U true CN203025021U (en) | 2013-06-26 |
Family
ID=48649000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521823 Expired - Lifetime CN203025021U (en) | 2012-10-12 | 2012-10-12 | Active carbon box for radon gas measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025021U (en) |
-
2012
- 2012-10-12 CN CN 201220521823 patent/CN203025021U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |