CN114397689B - A radioactive detection device for building materials and a method of using the same - Google Patents
A radioactive detection device for building materials and a method of using the same Download PDFInfo
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- CN114397689B CN114397689B CN202111641450.5A CN202111641450A CN114397689B CN 114397689 B CN114397689 B CN 114397689B CN 202111641450 A CN202111641450 A CN 202111641450A CN 114397689 B CN114397689 B CN 114397689B
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- 239000004566 building material Substances 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title abstract description 9
- 238000005086 pumping Methods 0.000 claims abstract description 52
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 25
- 238000004146 energy storage Methods 0.000 claims abstract description 10
- 239000000284 extract Substances 0.000 claims abstract description 4
- 230000005855 radiation Effects 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 4
- 239000000941 radioactive substance Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/167—Measuring radioactive content of objects, e.g. contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
本发明公开了一种建筑材料放射性检测装置及其使用方法，包括驱动装置、集气装置、压缩装置、放射性检测装置、储能装置和底座，所述储能装置包括压缩空气桶、拉绳、打气活塞、打气活塞套和门，所述打气活塞滑动设置在打气活塞套内。打气活塞套设置在底座上，所述打气活塞套上设置有活塞进气口和活塞出气口。本发明提供了一种建筑材料放射性检测装置及其使用方法，能检测建筑材料逸散在空气中的放射性物质的含量，且其通过抽取不同位置的空气，且将所抽取的空气中的微小颗粒进行集合，从而便于仪器的检测，在不使用高精度的设备也能检测出空气中含有的放射性物质，降低检测的成本。
The present invention discloses a radioactive detection device for building materials and a method for using the same, comprising a driving device, an air collecting device, a compression device, a radioactive detection device, an energy storage device and a base, wherein the energy storage device comprises a compressed air barrel, a pull rope, an air pumping piston, an air pumping piston sleeve and a door, wherein the air pumping piston is slidably arranged in the air pumping piston sleeve. The air pumping piston sleeve is arranged on the base, and a piston air inlet and a piston air outlet are arranged on the air pumping piston sleeve. The present invention provides a radioactive detection device for building materials and a method for using the same, which can detect the content of radioactive substances released into the air by building materials, and it extracts air from different positions and collects tiny particles in the extracted air, thereby facilitating the detection of the instrument, and can detect radioactive substances contained in the air without using high-precision equipment, thereby reducing the cost of detection.
Description
Technical Field
The invention relates to the technical field of air detection, in particular to a building material radioactivity detection device and a using method thereof.
Background
The building material has certain radioactivity due to the self material, but when a plurality of materials are in indoor environment, the radioactive substances in the building material can be diffused in the air and attached to tiny particles in the air, so that the whole air has certain radioactivity, the radioactivity detection devices on the market today detect the building material, but the radioactivity of the general building material is very weak, and the diffused radioactive elements are weaker, so that the radioactivity cannot be detected by general equipment.
Disclosure of Invention
The invention provides a device for detecting radioactivity of a building material and a using method thereof, aiming at the defects in the prior art. In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides a building material radioactivity detection device, includes drive arrangement, gas collecting device, compression device, radioactivity detection device, energy memory and base, energy memory includes compressed air bucket, stay cord, inflates the piston, inflates piston sleeve and door, the piston slip of inflating sets up in inflating piston sleeve, inflates piston sleeve setting on the base, inflating piston sleeve is last to be provided with piston air inlet and the piston gas outlet, compressed air bucket passes through the trachea and is connected with the piston gas outlet, the door passes through the stay cord with the piston of inflating to be connected, when opening the door, can stimulate and inflate the piston and slide, makes the air in the piston sleeve of inflating enter into in the compressed air bucket.
The driving device comprises a chute shaft, a guide shaft, a sliding plate and a pneumatic motor, wherein the chute shaft rotates and is limited up and down, the guide shaft is arranged on the base, the sliding plate is arranged on the chute shaft and the guide shaft in a sliding manner, a guide sliding pin is arranged in the sliding plate, a circulating chute is arranged on the chute shaft, the guide sliding pin is arranged on the circulating chute in a sliding manner, the pneumatic motor is arranged on the base, the chute shaft is arranged on the pneumatic motor, the pneumatic motor is connected with a compressed air barrel through an air pipe, the air collecting device can extract quantitative compressed air and inject the quantitative compressed air into the compressing device, the compressing device comprises an air compressing barrel, an air outlet is arranged at the bottom of the air compressing barrel, and the compressing device can discharge the injected quantitative air from the air outlet.
The radioactivity detection device comprises filter paper, a paper pushing cylinder, a gamma scintillation radiation detector and a platform plate, wherein the paper pushing cylinder and the filter paper are positioned on the platform plate, the gamma scintillation radiation detector is arranged on the bottom surface of an air compressing barrel, the paper pushing cylinder is connected with an air compressing barrel, the filter paper is reserved below an air outlet in an initial state, after quantitative air in the air compressing barrel is completely discharged from the air outlet, the paper pushing cylinder is started to push the filter paper to the lower side of the air outlet, the pushed filter paper pushes the used filter paper to the lower side of the gamma scintillation radiation detector, and the gamma scintillation radiation detector detects the radiation value on the filter paper.
The air pump has the beneficial effects that the air pump is driven by the door to move, so that the air in the air pump piston sleeve is pressed into the compressed air barrel, the compressed air is stored in the compressed air barrel, the pneumatic motor is driven to rotate by the compressed air, the sliding groove shaft is driven to rotate, the air collecting device is driven to extract quantitative air, the extracted air is injected into the compression device, finally, the air is discharged from the air outlet, and finally, tiny particles in the air are left on the filter paper.
In the above scheme, preferably, the gas collecting device comprises an air cylinder, an upper piston ring and a lower piston ring, wherein the upper piston ring and the lower piston ring are both arranged in the air cylinder in a sliding way, and are both provided with a one-way ventilation device, a piston device is further arranged on the upper piston ring and comprises a piston sleeve and a piston rod, the bottom end of the piston sleeve is arranged on the upper piston ring, the upper end of the piston sleeve is arranged on a sliding plate in a sliding way, the piston rod is elastically locked on the sliding plate, the piston rod is arranged in the piston sleeve in a sliding way, the top end of the piston rod is provided with a first limiting block, the lower piston ring is provided with a linkage shaft, the linkage shaft is arranged on the upper piston ring and the sliding plate in a sliding way, and the linkage shaft is provided with a second limiting block and a third limiting block, and the second limiting block and the third limiting block are respectively arranged above and below the sliding plate.
The piston sleeve is elastically locked by the locking ball, and the sliding plate can drive the piston sleeve to slide upwards together in an initial state, so that air is pumped between the upper piston ring and the lower piston ring, and air pumping is completed when the upper piston ring is propped against the upper end surface of the inflator, and the locking ball is disconnected with the piston sleeve.
In the above aspect, preferably, the piston device further includes a second elastic member slidably disposed on the piston rod and located in the piston sleeve, wherein the lower end is abutted against the piston rod, and the upper end is abutted against the piston sleeve.
The piston rod has the beneficial effects that the piston rod can automatically fall back after being used.
In the above scheme, preferably, the gas collecting devices are provided in plurality, and the one-way ventilation devices on the lower piston ring are connected with gas inlet devices at different positions.
The air collecting device has the beneficial effects that air at different positions can be collected.
In the above scheme, preferably, the compression device comprises a compression barrel, a compression piston and a guide pipe, wherein the compression piston is arranged in the compression barrel in a sliding manner, a unidirectional air inlet is formed in the compression piston, an air outlet is formed in the bottom of the compression barrel, the guide pipe is communicated with the unidirectional air inlet and the unidirectional ventilation device on the upper piston ring, a top contact rod is arranged on the compression piston, and the top end of the top contact rod is located below the sliding plate.
The air compressor has the beneficial effects that air in the air compressing barrel is discharged from the air outlet through the air compressing piston.
In the above scheme, preferably, the platform board is further provided with a paper storage barrel and a discarding barrel, the paper storage barrel is internally provided with a lifting plate in a sliding manner, a filter paper elastic piece is arranged below the lifting plate and is positioned below the lifting plate for elastically lifting the lifting plate, and the discarding barrel is arranged below the lifting plate.
In the above scheme, preferably, a limiting plate is arranged above the paper storage barrel and is used for limiting the filter paper, so that the bottom surface of the filter paper at the uppermost layer in the paper storage barrel is leveled with the plane of the platform plate.
The automatic lifting device has the beneficial effects that the filter paper can be stored in the paper storage barrel, after one filter paper is lifted out each time, the filter paper below the filter paper can automatically lift up, the next lifting is convenient, and the measured filter paper can fall into the material discarding barrel.
In the above scheme, preferably, the energy storage device further comprises a piston elastic piece, the pumping piston comprises a pumping piston rod and a pumping piston ring, the piston elastic piece is slidably arranged on the pumping piston rod and is positioned in the pumping piston sleeve, and two ends of the piston elastic piece are respectively propped against the front end face of the pumping piston ring and the inner wall of the pumping piston sleeve.
The air pump has the beneficial effects that when the door is closed, the air pump piston automatically moves to the innermost end of the air pump piston sleeve under the action of the piston elastic piece, so that air enters the air pump piston sleeve, and when the door is opened, the air pump piston is pulled by the pull rope to slide forwards, so that the air is injected into the compressed air barrel.
A construction material radioactivity detection device and a use method thereof are provided:
s1, the compressed air barrel supplies air to the pneumatic motor, so that the pneumatic motor drives the chute shaft to rotate, and a plurality of air collecting devices can extract quantitative compressed air.
S2: and injecting quantitative compressed air extracted by the plurality of air collecting devices into the air compressing barrel, and discharging air obtained in the air compressing barrel outwards from an air outlet at the bottom of the air compressing barrel, wherein the air is filtered by filter paper.
S3: and detecting the content of the radioactive substances on the filter paper to obtain the content of the radioactive substances in the air, thereby obtaining the radioactive content of the building material dissipated in the air.
The beneficial effects of the invention are as follows: according to the principle that the building material can emit radioactive substances in the air and can be attached to tiny particles in the air, the radioactive substances in the air can be detected by extracting the air at different positions in a room, filtering the air through filter paper and detecting the radioactive substances on the filter paper to obtain the content of the radioactive substances in the air, so that the content of the radioactive substances emitted in the air by the building material is detected.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic diagram of the energy storage of the present invention the device is partially schematic.
Figure 3 is a front cross-sectional view of the present invention.
FIG. 4 shows the present invention an energy storage device is in cross-section.
FIG. 5 is a schematic view of the internal structure of the present invention.
FIG. 6A set of the present invention a cross-sectional view of the gas device.
FIG. 7 is a cross-sectional view of a radioactivity detecting device according to the present invention.
Fig. 8 is a partial enlarged view of a cross-sectional view of a gas collecting device of the present invention.
Fig. 9 is a schematic view of a guide slide pin of the present invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: with reference to figures 1-9 of the drawings,
The utility model provides a building material radioactivity detection device, includes drive arrangement 1, gas collecting device 2, compression device 3, radioactivity detection device 4, energy storage device 5, base 6 and air inlet unit 7, base 6 includes upper platform 61 and lower platform 62, energy storage device 5 includes compressed air bucket 51, stay cord 52, inflating piston 53, inflating piston sleeve 54, piston elastic component 55 and door 56, inflating piston 53 includes inflating piston rod 531 and inflating piston ring 532, piston elastic component 55 slides and sets up on the air piston rod 531, and is located inflating piston sleeve 54, and its both ends are respectively the top touch on the preceding terminal surface of inflating piston ring 532 and on the inner wall of inflating piston sleeve 54, and inflating piston sleeve 54 sets up on lower platform 62, be provided with piston air inlet 541 and piston air outlet 542 on the piston sleeve 54, just all be provided with the unilateral ventilation device on piston air inlet 541 and the piston 542, compressed air bucket 51 passes through the trachea and is connected with piston air outlet 542 for the interior air bucket 54 is pressed into by the piston air inlet 542 and is connected with the valve when the automatic pressure of air 51, and the compressed air valve is connected to the inside of the piston 52.
In order to detect the content of the radioactive substances in the air, the building material is generally placed in a detected room, the interior of the building material is a relatively closed environment, the interior of the building material is generally opened for entering, the door 56 is required to be opened and closed when the building material is carried or checked, the building material is detected at fixed time, i.e. the detection equipment is opened for detection after the building material is placed indoors for a certain time, and the building material is detected for multiple times in different time periods.
In the initial state, the rear end of the pumping piston 53 is propped against the bottom wall of the inner hole of the pumping piston sleeve 54 under the action of the piston elastic member 55, at this time, air is arranged between the front wall of the inner hole of the pumping piston sleeve 54 and the front end surface of the pumping piston ring 532, at this time, the door 56 is opened, the pulling rope 52 is pulled by the door 56 to drive the pumping piston 53 to slide forward, so that the air between the front wall of the inner hole of the pumping piston sleeve 54 and the front end surface of the pumping piston ring 532 is discharged from the piston air outlet 542 and enters the compressed air barrel 51, and when the door is closed, the pulling rope 52 is loosened, the pumping piston 53 slides backward under the action of the piston elastic member 55, so that the distance between the front wall of the inner hole of the pumping piston sleeve 54 and the front end surface of the pumping piston ring 532 is increased, the space is reduced, and the external air enters the pumping piston sleeve 54 through the air inlet 541.
The driving device 1 comprises a chute shaft 11, a guide shaft 12, a sliding plate 13 and a pneumatic motor 14, wherein the chute shaft 11 rotates and is arranged on an upper platform 61 in an up-down limiting mode, the guide shaft 12 is arranged on the upper platform 61, the sliding plate 13 is arranged on the chute shaft 11 and the guide shaft 12 in a sliding mode, a guide sliding pin 133 is rotationally arranged on the sliding plate 13, a circulating chute 111 is formed in the chute shaft 11, the front end of the guide sliding pin 133 is arranged on the circulating chute 111 in a sliding mode, the pneumatic motor 14 is arranged on the upper platform 61, the chute shaft 11 is arranged on the pneumatic motor 14, the pneumatic motor 14 is connected with a compressed air barrel 51 through an air pipe, and a timing switch is arranged on the compressed air barrel 51.
When the timing switch on the compressed air barrel 51 is turned on, compressed air in the compressed air barrel is introduced into the pneumatic motor 14, so that the pneumatic motor 14 starts to rotate, and the slide shaft 11 is driven to rotate, and the guide slide pin 133 starts to circularly slide on the circulation slide groove 111, and the slide plate 13 is driven to slide up and down.
The gas collecting device 2 comprises a gas cylinder 21, an upper piston ring 22, a lower piston ring 23, a one-way ventilation device 24, a piston device 25 and a linkage shaft 26, wherein the upper piston ring 22 and the lower piston ring 23 are both arranged in the gas cylinder 21 in a sliding way, the one-way ventilation device 24 enables gas to pass through in one direction only on the upper piston ring 22 and the lower piston ring 23, the piston device 25 comprises a piston sleeve 251, a piston rod 252 and a second elastic piece 254, the bottom end of the piston sleeve 251 is arranged on the upper piston ring 22, the piston rod 252 is arranged in the piston sleeve 251 in a sliding way, the second elastic piece 254 is arranged on the piston rod 252 in a sliding way, the lower end of the piston rod 252 is in contact with the piston rod 252 in a pushing way, the upper end of the piston sleeve 251 is in a sliding way arranged on a sliding plate 13, a groove 2511 is formed in the upper end surface of the piston sleeve 251, a first elastic piece 131 is arranged in the sliding plate 13, the front end of the piston sleeve is in a pushing way of a locking ball 132, the locking ball 132 is in contact with the groove 2511, and the piston sleeve 22 is arranged on the upper piston sleeve 13 and the linkage shaft 23 is arranged on the lower piston ring 23.
The sliding groove shaft 11 rotates to drive the sliding plate 13 to slide upwards and drive the piston sleeve 251 to slide upwards, so as to drive the upper piston ring 22 to slide upwards, the space between the upper piston ring 22 and the lower piston ring 23 is enlarged, air enters between the upper piston ring 22 and the lower piston ring 23 from the one-way ventilation device 24 on the lower piston ring 23, when the upper piston ring 22 moves up to the uppermost end, the whole pipe of air is completely extracted, and the space between the upper piston ring 22 and the lower piston ring 23 is constant, so that the volume of air extracted each time is also constant.
The top end of the piston rod 252 is provided with a first limiting block 253, the linkage shaft 26 is provided with a second limiting block 261 and a third limiting block 262, the second limiting block 261 and the third limiting block 262 are respectively located above and below the sliding plate 13, and the piston sleeve 251 is provided with a fourth limiting block 2512.
When the upper piston ring 22 moves up to the uppermost end, the sliding plate 13 continues to slide upwards, so that the sliding plate 13 is separated from the piston sleeve 251, the upper end surface of the sliding plate 13 is propped against the first limiting block 253, the piston rod 252 is driven to slide upwards, the second elastic piece 254 is compressed, when the sliding plate 13 is separated from the piston sleeve 251, the upper piston ring 22 can still be kept at the right position, and the sliding plate 13 is propped against the first limiting block 253 and also is propped against the second limiting block 261, the linkage shaft 26 is driven to slide upwards, so that the lower piston ring 23 slides upwards, and air is discharged from the unidirectional ventilation device 24 of the upper piston ring 22.
The compression device 3 comprises a compression barrel 31, a compression piston 32 and a guide pipe 33, the compression piston 32 is arranged in the compression barrel 31 in a sliding manner, a one-way air inlet 321 is formed in the compression piston 32, an air outlet 311 is formed in the bottom of the compression barrel 31, the guide pipe 33 is communicated with the one-way air inlet 321 and the one-way air breather 24 on the upper piston ring 22, a top contact rod 322 is arranged on the compression piston 32, the top end of the top contact rod is located below the sliding plate 13, the air inlet device 7 is arranged at different indoor positions, the air collecting devices 2 are arranged in a plurality and are matched with the sliding plate 13, and the one-way air breather 24 on the lower piston ring 23 on the top contact rod is connected with the air inlet device 7 at different positions.
The sliding plate 13 moves upward to drive the plurality of upper piston rings 22 to move upward together, air at different positions is pumped between the plurality of upper piston rings 22 and the lower piston rings 23 through the air inlet devices 7 at different positions, the pumped air is injected into the air compressing barrel 31 through the guide pipe 33 to enable the air compressing piston 32 to slide upward, the top contact rods 322 on the air compressing piston 32 move upward together when the sliding plate 13 moves upward and are always positioned below the sliding plate 13, and the sliding plate 13 starts to slide downward after moving upward to the highest point due to the fact that the sliding grooves on the sliding groove shaft 11 are circulation sliding grooves, in the downward sliding process, the top contact rods 322 are pressed to slide downward, so that the air in the air compressing barrel 31 is discharged outwards through the air outlet 311 at the bottom of the air compressing barrel, in the downward sliding plate 13 moves downward to be propped against the third limiting block 262 and the fourth limiting block 2512, and the upper piston rings 22 and the lower piston rings 23 are driven to move downward at the same time, and the initial position is returned.
The radioactivity detection device 4 comprises a filter paper 41, a paper pushing cylinder 42, a gamma scintillation radiation detector 43, a platform plate 44, a paper storage barrel 45 and a waste barrel 46, wherein the paper pushing cylinder 42 is arranged on the platform plate 44 and is connected with an air shrinkage barrel 51 through an air pipe, the bottoms of the paper storage barrel 45 and the waste barrel 46 are arranged on a lower platform 62, the upper ends of the paper storage barrel 45 and the waste barrel 46 are arranged on the platform plate 44, a lifting plate 452 is slidably arranged in the paper storage barrel 45, a filter paper elastic part 453 is arranged below the lifting plate 452 and is used for elastically lifting the lifting plate 452, the paper storage barrel 45 is designed for an upper opening, the filter paper 41 is placed on the lifting plate 452, a limiting plate 451 is arranged above the paper storage barrel 45 and is used for limiting the filter paper 41, the bottom surface of the uppermost filter paper 41 in the paper storage barrel 45 is level with the plane of the platform plate 44, the paper storage barrel 45 is positioned between the paper pushing cylinder 42 and the air outlet 311, the thickness of a pushing rod on the paper storage barrel 42 is smaller than the thickness, the filter paper pushing rod on the paper storage barrel 45 is used for pushing the uppermost filter paper 45 to pass through the air outlet 311, and can be connected with the filter paper 41 through the air outlet channel 41, and the gamma scintillation radiation detector 43 is arranged below the platform plate 43.
In the initial state, the filter paper 41 is left below the air outlet 311, after the quantitative air in the air compressing barrel 31 is completely discharged from the air outlet 311, the paper pushing cylinder 42 is started to push the unused filter paper 41 at the uppermost layer in the paper storing barrel 45 to the position below the air outlet 311, so as to push the filter paper 41 originally below the air outlet 311 to slide forward, when the new filter paper 41 is positioned below the air outlet 311, the used filter paper is just positioned below the gamma scintillation radiation detector 43, and at the moment, the gamma scintillation radiation detector 43 is started to detect the radiation value on the filter paper 42.
The working principle or the using method is as follows:
After the building materials are all placed indoors, the timing switch on the compressed air barrel 51 starts to work, after the set time is reached, the timing switch on the compressed air barrel 51 is opened, compressed air in the compressed air barrel 51 is introduced into the pneumatic motor 14, the pneumatic motor 14 starts to rotate, the sliding groove shaft 11 is driven to rotate, the sliding plate 13 only slides up and down due to the action of the sliding groove shaft 11 and the guide shaft 12, and the guide sliding pin 133 slides on the circulating sliding groove 111 in a circulating manner, so that the sliding plate 13 is driven to slide up and down.
The sliding plate 13 slides upwards to drive the plurality of upper piston rings 22 to move upwards together, so that the space between the upper piston rings 22 and the lower piston rings 23 is enlarged, and air enters between the upper piston rings 22 and the lower piston rings 23 through the one-way ventilation devices 24 on the lower piston rings 23 by the air inlet devices 7 at different positions, so that the air at different positions is pumped between the plurality of upper piston rings 22 and the lower piston rings 23, and the multi-tank air is pumped when the upper piston rings 22 move upwards to the uppermost end.
When the upper piston ring 22 moves up to the uppermost end, the sliding plate 13 continues to slide upwards, so that the sliding plate 13 is unlocked from the piston sleeve 251, the upper end surface of the sliding plate 13 is propped against the first limiting block 253, the piston rod 252 is driven to slide upwards, the second elastic piece 254 is compressed, when the sliding plate 13 is disconnected from the piston sleeve 251, the upper piston ring 22 can still be kept at the right position, the sliding plate 13 is propped against the first limiting block 253 and simultaneously also is propped against the second limiting block 261, the linkage shaft 26 is driven to slide upwards, the lower piston ring 23 is enabled to slide upwards, the extracted air is injected into the air compressing barrel 31 through the guide pipe 33, the air compressing piston 32 is enabled to slide upwards, the sliding plate 13 moves upwards together with the propping contact rod 322 on the air compressing piston 32, and is always positioned below the sliding plate 13, and because the sliding groove on the sliding groove shaft 11 is a circulating sliding groove, the sliding groove 13 starts to slide downwards after moving upwards to the highest point, the sliding downwards, the propping contact rod 322 is pressed downwards, the sliding downwards, so that the air in the barrel 31 is enabled to be in contact with the air compressing groove 31 is enabled to be filled with the filter paper 311, and the air particles are all discharged outwards through the filter paper 311, and the filter paper 42 are arranged on the air outlet holes.
After the quantitative air in the air compressing barrel 31 is completely discharged from the air outlet 311, the paper pushing cylinder 42 is started, unused filter paper 41 at the uppermost layer in the paper storing barrel 45 is pushed to the position below the air outlet 311, so that the filter paper 41 originally positioned below the air outlet 311 is propped against and slides forward, when new filter paper 41 is positioned below the air outlet 311, the used filter paper is positioned just below the gamma scintillation radiation detector 43, and at the moment, the gamma scintillation radiation detector 43 is started, and the radiation value on the filter paper 42 is detected.
In the initial state, the rear end of the pumping piston 53 is propped against the bottom wall of the inner hole of the pumping piston sleeve 54 under the action of the piston elastic member 55, at this time, air is arranged between the front wall of the inner hole of the pumping piston sleeve 54 and the front end surface of the pumping piston ring 532, at this time, the door 56 is opened, the pulling rope 52 is pulled by the door 56 to drive the pumping piston 53 to slide forward, so that the air between the front wall of the inner hole of the pumping piston sleeve 54 and the front end surface of the pumping piston ring 532 is discharged from the piston air outlet 542 and enters the compressed air barrel 51, and when the door is closed, the pulling rope 52 is loosened, the pumping piston 53 slides backward under the action of the piston elastic member 55, so that the distance between the front wall of the inner hole of the pumping piston sleeve 54 and the front end surface of the pumping piston ring 532 is increased, the internal air pressure is reduced, and the external air enters the pumping piston sleeve 54 through the air inlet 541, so that the air is pressed into the compressed air barrel 51 again when the door is opened next time.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641450.5A CN114397689B (en) | 2021-12-30 | 2021-12-30 | A radioactive detection device for building materials and a method of using the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641450.5A CN114397689B (en) | 2021-12-30 | 2021-12-30 | A radioactive detection device for building materials and a method of using the same |
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| Publication Number | Publication Date |
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| CN114397689A CN114397689A (en) | 2022-04-26 |
| CN114397689B true CN114397689B (en) | 2024-11-26 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209784547U (en) * | 2019-04-23 | 2019-12-13 | 衡阳镭目科技有限责任公司 | Radioactive gas detection device |
| CN113341451A (en) * | 2020-11-13 | 2021-09-03 | 广东中科揽胜辐射防护科技有限公司 | Radioactive air on-line monitoring device |
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| GB190405125A (en) * | 1904-03-01 | 1905-01-26 | Emile Gobbe | Improvements in Apparatus for Compressing Air, or Gases. |
| JP3846357B2 (en) * | 2002-04-19 | 2006-11-15 | 富士電機システムズ株式会社 | Filter paper recycling equipment for radioactive dust monitor |
| CN213842953U (en) * | 2020-11-30 | 2021-07-30 | 中国人民解放军陆军军医大学第一附属医院 | Radioactive aerosol particle detection device |
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| CN209784547U (en) * | 2019-04-23 | 2019-12-13 | 衡阳镭目科技有限责任公司 | Radioactive gas detection device |
| CN113341451A (en) * | 2020-11-13 | 2021-09-03 | 广东中科揽胜辐射防护科技有限公司 | Radioactive air on-line monitoring device |
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