CN205538907U - Rate survey case is appeared to material surface radon with adjustable volume - Google Patents
Rate survey case is appeared to material surface radon with adjustable volume Download PDFInfo
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- CN205538907U CN205538907U CN201620280499.0U CN201620280499U CN205538907U CN 205538907 U CN205538907 U CN 205538907U CN 201620280499 U CN201620280499 U CN 201620280499U CN 205538907 U CN205538907 U CN 205538907U
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Abstract
The utility model provides a rate survey case is appeared to material surface radon with adjustable volume, include: the test box, the sample frame, a movable partition, stationary barrier, ball, sliding guide, step motor, and with the electromechanical control module that step motor connects, wherein, a movable partition sets up with the stationary barrier each other parallelly, and the fixed connection of wall portion of stationary barrier and test box reserves the space that is used for installing step motor in the rear end of test box, ball includes: run through A movable partition and stationary barrier and the screw rod continuous with step motor in proper order to and the support base that passes the screw rod with A movable partition is fixed, a movable partition's bottom through the sliding block with set up in the sliding guide sliding fit of test box bottom. According to the utility model discloses, only need through the required volume of electromechanical control module input, the device is automatic according to numerical value adjust box body volume to avoid the volumetric error of manual regulation test box, guaranteed experiment the reliability of the data.
Description
Technical field
This utility model relates to a kind of radon detection device, relates more specifically to a kind of volume adjustable material list
Face precipitation rate of radon measures case.
Background technology
Radon is a kind of chemical element, and the common elemental form of radon is radon gas, for colourless, odorless, tasteless
Noble gas, has radioactivity.Because radon is radgas, after in people's suction body, radon declines
The alpha particle become can cause radiation damage at the respiratory system of people, lung cancer caused.And construction material is
The main source of Indoor Niton.Such as granite, brick sand, cement and Gypsum Fibrosum etc, particularly contain radioactivity
The lithotome of element, is easiest to disengage radon.Therefore, at present to radon, especially construction material produces
Detection and the preventing and treating of radon gas receive great attention.
Rule in GB50325-2010 (2013 editions) " code for indoor environmental pollution control of civil building engineering "
Fixed hollow brick for building for hollow rate more than 25%, building-block are except needing to carry out the radioactivity of routine
Outside detection, also need to carry out the detection of building material surface precipitation rate of radon.But owing to this standard releases the time relatively
Short, the finished product instrument of this parameter does not the most detect in each experimental apparatus manufacturer.
It is below to building material surface precipitation rate of radon in GB50325-2010 (2013 editions) appendix A
The specified in more detail that detection is made:
1. the determining instrument of building material surface precipitation rate of radon includes sampling and measures two parts, operation principle
It is divided into passive collection type and two kinds of measurement apparatus of collection type of actively bleeding, should meet the following requirements:
1.1 continuous 10h measure detection limit and not should be greater than 0.001Bq/ (m2·s)；
1.2 uncertainties not should be greater than 20%；
1.3 instruments should be within scale effect duration；
1.4 measure temperature should be 25 DEG C ± 5 DEG C；Relative humidity should be 45% ± 15%.
Collection type of the most actively bleeding measures building material surface precipitation rate of radon step and should include:
2.1 tested test blocks prepare: make sample surface area (m2) (collection of bleeding is held with collection container of bleeding
Device or contain tested test block container) interior clear space (collection container internal volume of i.e. bleeding, or contain tested
Block container contents amasss the clear space after the overall volume deducting tested test block) volume (m3) ratio be 2:1,
Clear up tested test block surface, prepare to measure.
2.2 measurement apparatus prepare: collection container of bleeding (or containing tested test block container) and measuring instrument gas circuit
Connection puts in place.Before test, measure cleaned air radon consistence background values record in air-channel system.
Tested test block and measurement apparatus are put and to be put in place by 2.3, the collection container that makes to bleed (bleed collection container or
Contain tested test block container) seal, terminate until measuring.
2.4 ready after i.e. start measure and timing, test block measure the time within more than 2h, 10h.
The surface precipitation rate of radon ε of 2.5 test blocks should calculate according to the following formula:
In formula: ε test block surface precipitation rate of radon [Bq/ (m2·s)]；
C measurement apparatus intrasystem radon in air concentration (Bq/m3)；
V mono-measures (the collection container internal volume of bleeding, or contain tested of clear space volume in system
Test block container contents amasss the clear space after the overall volume deducting tested test block) (m3)；
External surface area (the m of the tested test block of S2)；
T mono-is from starting to measure the time (s) of measurement end experience.
According to above-mentioned standard, the main formulation unit Henan Jian Keyuan plastics box system of this standard
Make the detector of a demonstration character.The general configuration of this detector is: at the sidewall of plastics box
Hole that bore 2 diameter about 1.5cm, that be used for fixing connection radon consistence detector trachea, and 1
Diameter about 1cm, for deriving the hole of box fan power line；Box all sticks with case lid edge
Sealing strip, it is ensured that the sealing in case during experiment.
Guangzhou Building Materials Institute Limited Company also proposed a utility application,
Entitled " building material surface test chamber for radon exhalation rate " (number of patent application: CN2010206137594).
This test chamber specifically include that the uniform blower fan of nacelle, specimen holder, air, air sampling hole, for observing
The illuminator of situation in cabin during detection, it is used for recording length of testing speech sending after arriving the setting time and carries
The timekeeping system of awake signal, described specimen holder is positioned over nacelle centre position, and the uniform blower fan of air is arranged at
On position, three, nacelle medial surface upper, middle and lower and end face diagonal, described nacelle passes through air sampling hole
Type radon measuring devices of actively bleeding with the external world is connected, and described illuminator and timekeeping system are arranged at nacelle top
Portion, the uniform blower fan of described air, illuminator, timekeeping system are all by being arranged at the circuit on nacelle top
Switch is connected with external power source.
But, all there is certain defect in above two scheme, the defect of the first scheme is: on the one hand,
The edge of arrangement case lid and casing is due to consideration attractive in appearance, and its moulding has radian mostly, is not having sealing strip
In the case of cannot ensure sealing, and be difficult to after having added sealing strip buckle with the hands of chest itself fix case lid；
On the other hand, owing to the material of box is plastics, needing again to load several piece hollow brick, there is quilt in box
The situation of fragment of brick pressure break, causes ruggedness the best.
And the defect that the first and first scheme have jointly is, the casing provided is all
Fixed volume, but, find in the actually detected work of this laboratory, hollow brick on market,
Building-block specification is varied, " the fragment of brick surface area: net volume in test box and standard has been laid down hard and fast rule
=2:1 " ratio, this means that solution has two kinds: one, be required for the sample of different size model
Product make the most isometric chest, although so can reach standard-required, but required chest quantity is too many,
And need (to include stirring the fan of air-flow for each chest a set of transformation material of preparation, connect trachea
Mouthpiece), the expense that wastes time and energy space；Two, cutting fragment of brick is to meet " fragment of brick surface area: only hold in test box
Long-pending=2:1 " condition, but owing to fragment of brick is hollow brick, cutting may destroy its hollow rate, makes the sky of sample
Heart rate does not reaches testing requirement.
Therefore, existing precipitation rate of radon mensuration case is fixed due to box house volume, and is extremely difficult to country
The testing standard requirement of regulation, it is impossible to ensure to realize the reliability of data.
Utility model content
The purpose of this utility model is to provide a kind of volume adjustable material surface precipitation rate of radon and measures case, from
And solve precipitation rate of radon of the prior art and measure case and fix due to box house volume and be difficult to meet existing
The bioassay standard to building material surface precipitation rate of radon and cause the inaccurate defect of experimental data.
In order to solve above-mentioned technical problem, this utility model by the following technical solutions:
A kind of volume adjustable material surface precipitation rate of radon is provided to measure case, including: test casing；Arrange
In the specimen holder of described test box house, active clapboard, stationary barrier, ball-screw, rail plate,
Motor；And it is arranged at the Electrical Control molding that described test box external body is connected with described motor
Block；Wherein, active clapboard is located in parallel to one another with stationary barrier, described active clapboard and described test
The wall portion of casing is tightly connected, and described stationary barrier is fixing with the wall portion of described test casing to be connected, in institute
The rear end stating test casing reserves the space for installing motor, and described ball-screw includes: successively
Run through described active clapboard and stationary barrier the screw rod being connected with described motor, and through described
The support base fixing with described active clapboard of screw rod, the bottom of described active clapboard by sliding shoe with
The rail plate being arranged at described test box bottom is slidably matched.
Preferably, described rail plate is two guide rails parallel to each other.
On the screw rod of described ball-screw, the end near described active clapboard is provided with stop, prevents activity
Dividing plate comes off from this end of screw rod.
The inner ring supporting base of described ball-screw is provided with ball-screw bearing.
Described stationary barrier is provided with the ball bearing coordinated with described screw rod, be used for reducing stationary barrier with
Friction between screw rod.
Described specimen holder is made by having the steel plate of some circular holes, in order to the radon of sample surfaces to be tested
Separate out.
Described test box house is additionally provided with fan, described fan in the side of described specimen holder with described
Specimen holder is angled to be obliquely installed.
The surrounding of described active clapboard is tightly connected by the wall portion of rubber strip with described test casing.
Preferably, described stationary barrier is welded and fixed with the wall portion of test casing.
The front end of described test casing is provided with chamber door, and described chamber door is provided with gas sampling mouth.
The volume adjustable material surface precipitation rate of radon provided according to this utility model measures case, the most existing
Precipitation rate of radon measure case there is significant superiority.
First, by setting up active clapboard, ball-screw, rail plate, stepping at test box house
The Electromechanical Control module of motor and test box external body, therefore by the chain of command in Electromechanical Control module
Inputting necessary volume on plate, motor can drive active clapboard in test box body by ball-screw
Certain limit in along rail plate slide, it is achieved test box house volume one-touch the most adjustable,
To meet in working standard about fragment of brick surface area: the test request of net volume=2:1 in test box, it is to avoid
Manually adjust the error of volume, it is ensured that the reliability of experimental data, avoid in prior art simultaneously and need
The troublesome operation to bring for the most isometric chest of the sample making of different size model, it is thus also avoided that
Cutting sample causes the destruction of the hollow rate of sample own.
Secondly, by the use of ball-screw, the gyration of motor is made to be converted into active clapboard
Linear motion, has high accuracy, reversibility and high efficiency feature simultaneously concurrently, and has the least friction
Resistance；Again, using side door-opening mode to place sample, opening is minimum, and the surrounding of active clapboard is adopted
Seal with rubber strip, fully ensured that the reliable sealing of test casing；Finally, this mensuration case
Casing can use stainless steel material to make, it is ensured that ruggedness, and active clapboard uses the aluminium of lightweight to make,
Make active clapboard conveniently moving.
Accompanying drawing explanation
Fig. 1 is the outside drawing measuring case according to a preferred embodiment of the present utility model；
Fig. 2 is to measure the perspective view that case does not include the part of Electromechanical Control module as shown in Figure 1；
Fig. 3 profile measuring case as shown in Figure 2；
Fig. 4 is to measure in case the profile at active clapboard as shown in Figure 3.
Detailed description of the invention
Below in conjunction with the accompanying drawings, provide preferred embodiment of the present utility model, and be described in detail, enable
It is more fully understood that function of the present utility model, feature.
As shown in Figure 1-2, it is the volume adjustable material list according to a preferred embodiment of the present utility model
Face precipitation rate of radon measures case, mainly includes testing casing 1, specimen holder 2, fan 3, active clapboard 4,
Stationary barrier 5, ball-screw 6, rail plate 7,7 ', motor 8, and Electromechanical Control module 9.
Visible according to Fig. 1, test casing 1 substantially cuboid, there is the inner space for test,
This test casing 1 has openable chamber door 10 in its front end, and chamber door 10 is by hinge 11 and test box
Body 1 connects, and chamber door 10 is additionally provided with two gas sampling holes 12 and handle 13, and wherein, gas is adopted
Sample hole 12 is for connecting the trachea (not shown) of emanometer.Electromechanical Control module 9 is arranged at this survey
One side (Fig. 1 is shown as right side) of examination casing 1, including the control panel exposed, including display screen
91 and keyboard 92, and it is arranged at circuit board and electric wire (not shown), this electric wire and the step of inside
Entering motor 8 to be connected, whole Electromechanical Control module 9 completely cuts off completely with the inner space of test casing 1.
Specimen holder 2 is arranged at the inside of this test casing 1, is preferably close to chamber door 10 and places, it is simple to from
The sample that outside placement is to be tested, such as hollow brick, building-block etc., this specimen holder 2 has uniformly
The circular hole of distribution, preferably makes by having the steel plate of some perforates, surface in sample the most to be tested
The precipitation of radon.
Fan 3 is arranged at the inside of this test casing 1, it is preferable that fan 3 is arranged at specimen holder 2
Side, and slant setting angled with specimen holder 2, the airflow passes making this fan 3 blow out is placed
Sample to be tested on specimen holder 2, promotes to test the internal radon consistence of casing 1 and reaches to be uniformly distributed, make
Test result, closer to the radon consistence represented in test box body, improves the accuracy of test result further.
Shown in Fig. 2 and Fig. 3, active clapboard 4 and stationary barrier 5 are parallel to each other and are arranged at intervals at survey
The inside of examination casing 1, stationary barrier 5 and test casing 1 are alternately through being welded and fixed, thus are surveying
The rear end of examination casing 1 reserves certain space for installing motor 8, and active clapboard 4 is arranged at chamber door
Between 10 and stationary barrier 5.
Ball-screw 6 includes: sequentially pass through active clapboard 4 and stationary barrier 5 and with motor 8
The screw rod 61 connected, through the support base 62 (seeing Fig. 4) of screw rod 61, and is arranged at the support end
The ball-screw bearing (not shown) of seat 62 inner rings, wherein, active clapboard 4 is by screw and support
Base 62 is fixing to be connected.The present invention, by the use of this ball-screw 6, makes the revolution of motor 8 transport
The dynamic linear motion being converted into active clapboard 4, has high accuracy, reversibility and high efficiency feature concurrently simultaneously,
And there is the least frictional resistance.
Preferably, screw rod 61 is additionally provided with ball bearing 64 (seeing Fig. 3) at stationary barrier 5, uses
Carry out studdle 61, reduce abrasion.
Article two, rail plate 7,7 ' is located in parallel to one another in the lower section of active clapboard 4, active clapboard 4
Bottom be connected with rail plate 7,7 ' respectively further through sliding shoe 71,71 ', it is simple to active clapboard 4 along
Rail plate 7,7 ' slides.
The screw rod 61 of ball-screw 6 is additionally provided with stop 63 on the end of active clapboard 4, it is to avoid live
Dynamic dividing plate 4 hyperkinesia comes off at this, separates with screw rod 61.
Preferably, the surrounding of active clapboard 4 is provided with rubber strip 41, this rubber strip 41 all the time with test box
The inwall of body 1 keeps airtight sealing, it is ensured that the air-tightness of test casing 1 inner space.
Preferably, active clapboard 4 is made up of the aluminium of lightweight, it is ensured that active clapboard 4 activity freely, is surveyed
Examination casing 1 is made of stainless steel, it is ensured that ruggedness.
Measuring case according to the above-mentioned volume adjustable material surface precipitation rate of radon that this utility model provides, it makes
As follows by method:
S1: first, measures surface area and the volume of fragment of brick to be tested, according to " making sample surface area
(m2) with test box in net volume (m3) ratio be 2:1 " determine the fragment of brick quantity of use and required regulation
Test box volume, then input volume by measuring the keyboard 92 of control panel of case；
S2: measuring case and start to be automatically adjusted internal capacity according to instruction, concrete control method is as follows:
Motor 8 turns clockwise, screw rod 61 concomitant rotation, so drive support base 62 and
The active clapboard 4 being connected with support base 62 is along rail plate 7, and 7 ' are moved along, and test casing 1
The middle inner space for placing sample diminishes；Otherwise, motor 8 rotates counterclockwise, and screw rod 61 is therewith
Rotate, so drive support base 62 and with support the active clapboard 4 that is connected of base 62 along slip
Guide rail 7,7 ' move backward, big for placing the inner space change of sample in test casing 1.According to above-mentioned side
Method, the internal capacity measuring case has been automatically adjusted.
S3: open chamber door 10, is positioned over fragment of brick to be tested on specimen holder 2, closes chamber door 10, will
The trachea of emanometer is connected with the gas sampling hole 12 on chamber door 10, is measured.
According to this utility model, only necessary volume, the automatic root of device need to be inputted on the control panel of casing
Adjust tank-volumes according to numerical value, thus avoid the error manually adjusting volume, it is ensured that experimental data
Reliability.
Above-described, preferred embodiment the most of the present utility model, it is not limited to this utility model
Scope, above-described embodiment of the present utility model can also make a variety of changes.The most every according to this practicality
Change simple, equivalent that claims of novel application and description are made and modification, fall within
The claims of this utility model patent.The most detailed description of this utility model be conventional skill
Art content.
Claims (10)
1. a volume adjustable material surface precipitation rate of radon measures case, it is characterised in that including:
Test casing；It is arranged at the specimen holder of described test box house, active clapboard, stationary barrier,
Ball-screw, rail plate, motor；And it is arranged at described test box external body and described stepping
The Electromechanical Control module that motor connects；Wherein,
Active clapboard is located in parallel to one another with stationary barrier, described active clapboard and described test casing
Wall portion is tightly connected, and described stationary barrier is fixing with the wall portion of described test casing to be connected, in described test
The rear end of casing reserves the space for installing motor, and described ball-screw includes: sequentially pass through institute
State active clapboard and stationary barrier the screw rod being connected with described motor, and through described screw rod
The support base fixing with described active clapboard, the bottom of described active clapboard is passed through sliding shoe and is arranged at
The rail plate of described test box bottom is slidably matched.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, its feature
Being, described rail plate is two guide rails parallel to each other.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, its feature
Being, on the screw rod of described ball-screw, the end near described active clapboard is provided with stop.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, its feature
Being, the inner ring supporting base of described ball-screw is provided with ball-screw bearing.
Volume adjustable material surface precipitation rate of radon the most according to claim 4 measures case, its feature
Being, described stationary barrier is provided with the ball bearing coordinated with described screw rod.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, its feature
Being, described specimen holder is made by having the steel plate of some circular holes.
Volume adjustable material surface precipitation rate of radon the most according to claim 6 measures case, its feature
Being, test box house is additionally provided with fan, and described fan is at the side of described specimen holder and described sample
Product are put up certain angle and are obliquely installed.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, its feature
Being, the surrounding of described active clapboard is tightly connected by the wall portion of rubber strip with described test casing.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, its feature
Being, described stationary barrier is welded and fixed with the wall portion of test casing.
Volume adjustable material surface precipitation rate of radon the most according to claim 1 measures case, and it is special
Levying and be, the front end of described test casing is provided with chamber door, and described chamber door is provided with gas sampling mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620280499.0U CN205538907U (en) | 2016-04-06 | 2016-04-06 | Rate survey case is appeared to material surface radon with adjustable volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620280499.0U CN205538907U (en) | 2016-04-06 | 2016-04-06 | Rate survey case is appeared to material surface radon with adjustable volume |
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| Publication Number | Publication Date |
|---|---|
| CN205538907U true CN205538907U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620280499.0U Active CN205538907U (en) | 2016-04-06 | 2016-04-06 | Rate survey case is appeared to material surface radon with adjustable volume |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772553A (en) * | 2017-03-01 | 2017-05-31 | 苏州益普敦新材料科技有限公司 | A kind of building material surface test chamber for radon exhalation rate |
| CN107414774A (en) * | 2017-06-26 | 2017-12-01 | 国网山东省电力公司宁津县供电公司 | It is a kind of to carry from the electric power tool for following function |
| CN107514853A (en) * | 2017-09-05 | 2017-12-26 | 山东科技大学 | A kind of box for material circulation of variable volume |
| CN110702322A (en) * | 2019-11-07 | 2020-01-17 | 沈阳航天新光集团有限公司 | Comprehensive leak detection sealed cabin |
| CN114320582A (en) * | 2022-03-11 | 2022-04-12 | 氢山(北京)氢内燃机技术研究院有限公司 | Hydrogen energy supply device and hydrogen energy engine |
| CN114518211A (en) * | 2022-02-14 | 2022-05-20 | 三思永恒科技(浙江)有限公司 | Testing machine |
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2016
- 2016-04-06 CN CN201620280499.0U patent/CN205538907U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772553A (en) * | 2017-03-01 | 2017-05-31 | 苏州益普敦新材料科技有限公司 | A kind of building material surface test chamber for radon exhalation rate |
| CN107414774A (en) * | 2017-06-26 | 2017-12-01 | 国网山东省电力公司宁津县供电公司 | It is a kind of to carry from the electric power tool for following function |
| CN107414774B (en) * | 2017-06-26 | 2020-12-11 | 国网山东省电力公司宁津县供电公司 | Electric power tool with from following function |
| CN107514853A (en) * | 2017-09-05 | 2017-12-26 | 山东科技大学 | A kind of box for material circulation of variable volume |
| CN110702322A (en) * | 2019-11-07 | 2020-01-17 | 沈阳航天新光集团有限公司 | Comprehensive leak detection sealed cabin |
| CN114518211A (en) * | 2022-02-14 | 2022-05-20 | 三思永恒科技(浙江)有限公司 | Testing machine |
| CN114320582A (en) * | 2022-03-11 | 2022-04-12 | 氢山(北京)氢内燃机技术研究院有限公司 | Hydrogen energy supply device and hydrogen energy engine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 928, Minlei Road, Pudong New Area, Shanghai, 201209 Patentee after: National Testing and Testing Holding Group Shanghai Co.,Ltd. Address before: No. 928, Minlei Road, Pudong New Area, Shanghai, 201209 Patentee before: SHANGHAI ZHONGCAI ENGINEERING TESTING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |