CN206906087U - Atmosphere sampler with self-protection function - Google Patents
Atmosphere sampler with self-protection function Download PDFInfo
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- CN206906087U CN206906087U CN201720339325.1U CN201720339325U CN206906087U CN 206906087 U CN206906087 U CN 206906087U CN 201720339325 U CN201720339325 U CN 201720339325U CN 206906087 U CN206906087 U CN 206906087U
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Abstract
The utility model discloses a kind of atmosphere sampler with self-protection function, including：Cylinder interior is arranged on storage cabin, absorption bottle, cylinder, valve, heater, heater；In addition, its protection device includes：Bimetal leaf, push rod, pusher bar support, shell fragment, movable contact and fixed contact, push rod is limited in the pilot hole in pusher bar support Nei and moved up and down, and bimetal leaf is between the lower surface and push rod upper end of cylinder, the fixing end of shell fragment is fixed and free end is connected with movable contact, movable contact is due to the elastic force of shell fragment under normal conditions with fixed contact and is connected, and movable contact and fixed contact are passed through in the heater circuit loop of heater, when the temperature of cylinder is higher than setting value, bimetal leaf deforms upon and promotes push rod to move downward and push up the free end of shell fragment, and movable contact is separated with fixed contact, and make the heater circuit loop open circuit of heater.The utility model is a kind of atmosphere sampler with self-protection function that is safe, preventing spontaneous combustion.
Description
Technical field
The utility model is related to a kind of atmosphere sampler field, more particularly to it is a kind of it is safe, prevent having for spontaneous combustion
The atmosphere sampler of self-protection function.
Background technology
Atmospheric sampling is the process of pollutant sample or contaminated air sample in collection air.Spot sampling method has two
Class：One kind is large quantity of air is played the relatively low enriching pollutants of concentration in air by liquid-absorbant or solid absorbent
Come, such as degassing method, filter membrane method.Another kind of is with air of container (the vial, polybag etc.) collection containing pollutant.The former surveys
What is obtained is the mean concentration of pollutant in air in the sampling time；What the latter measured is instantaneous concentration or average dense in the short time
Degree.The mode of sampling should be depending on the purpose of sampling and field condition.Institute's sample thief should be representative.Sampling efficiency is high,
Operation must be easy, and is convenient for subsequent analysis measure, to obtain the master data of reliable atmosphere pollution.Gather air
The sample of middle pollutant or the sample of contaminated air, to obtain the master data of atmosphere pollution.
Atmospheric sampling is the important step of atmosphere environment supervision, and the reliable sexual intercourse for Monitoring Data is very big.Collection is big
The method of gas sample product, mainly there are two classes:One kind is to make large quantity of air by liquid-absorbant or solid absorbent, to absorb or hinder
Pollutant is stayed, the relatively low enriching pollutants of concentration in original air are got up, such as degassing method, filter membrane method.Measured with this kind of method
Result be pollutant in air in the sampling time mean concentration.Another kind of is to use container (vial, polybag, rubber ball
Courage, syringe etc.) air of the collection containing pollutant.This kind of method is applied to following situations：In air the concentration of pollutant compared with
It is high；Or the sensitivity of assay method is higher；It is not easy by the dusty gas and steaming of liquid-absorbant absorption or solid absorbent absorption
Vapour.The result measured with this method is the instantaneous concentration of pollutant or the mean concentration in the short time in air.In addition, also low temperature
Freezing, available for collection escaping gas and steam, such as alkyl lead.Liquid-absorbant in sampler is mainly used in absorbing gas
State and steam-like material.Conventional absorbent has：Water, compound water solution, organic solvent etc..Absorbent must be able to and pollutant
Quickly chemical reaction occurs or pollutant can be promptly dissolved, and is convenient for analysis operation.Such as the fluorination in air
Hydrogen, hydrogen chloride are with water as absorbent；Sulfur dioxide can be used as absorbent by the use of tetrachloro mercury sodium；Thimet (3911), demeton
Etc. (1059) organophosphorus pesticide can be used as absorbent etc. by the use of 5% methanol.Solid absorbent has granular adsorbent and threadiness to inhale
Attached dose two kinds.Conventional granular adsorbent has silica gel, unglazed pottery etc., the sampling for gaseous state, steam-like and particulate matter.Fiber
Shape adsorbent has filter paper, filter membrane, absorbent cotton, mineral wool etc., and suction-operated is mainly physical detention, for gathering particle
Thing.Sometimes adsorbent makes pollutant that chemical action occur with it and be adsorbed first with certain chemical reagent impregnation, main to use
In collection gaseous state or steam-like pollutant.
Atmospheric sampling will select suitable sample mode according to the purpose and field condition of sampling.As adopted continuously or instantaneously
Sample, on ground, grab sampling or flowing sampling, are sampled in the air with balloon, aircraft, and Environment features, indoor sampling and dirt
Contaminate source sampling etc..It is different with sample mode to sample purpose, the method for sampling and sampler used is also different.Such as in chimney
Grain thing sampling, can select appropriate location punching according to chimney shape, height, the collector of sampler stretched into hole, with etc. it is dynamic
The pumping collection of power speed.This method is referred to as isokinetic sampling method.
The sample that atmospheric sampling is gathered should be representative.The efficiency of sampling will height, operation must be easy, and be easy into
The subsequent chemical analysis measure of row.Influenceing the representational factor of sample has the efficiency of sampler and absorbent, the position of sampled point
Put with interference of the sampler to air-flow etc..
In recent years, atmospheric sampling technology just gradually combines with analysis and testing technology, and forming one kind can be continuously automatic
The device that ground is sampled, analyzes measure, recording measured result.This device can directly carry out field monitoring, referred to as monitoring point
Analyzer.
Detection of the air sampler for pernicious gas in air and environment plays a good role.With science skill
The continuous progress of art, air sampler are also continuous release new product, such as：It is intelligent type atmospheric sampler, explosion-proof air sampler, double
Gas circuit air sampler etc. product, the classification of air sampler is greatly enriched.
However, air sampler, in sampling process, equipment generation is not within minority from the situation of dieseling, if equipment
Generation dieseling, then do not cause singly sampling to fail, return equipment and bring destructive damage in itself, What is more also results in more
Big fire incident, consequence are hardly imaginable.Sample devices occur dieseling much due to heater temperature it is too high caused by,
It is therefore desirable to prevent heater temperature is too high from causing spontaneous combustion, a kind of atmospheric sampling with self-protection function of design fills
Put.
Utility model content
The purpose of this utility model is to provide a kind of dress of the atmospheric sampling with self-protection function that is safe, preventing spontaneous combustion
Put.
To achieve these goals, the technical solution of the utility model is：A kind of air with self-protection function is provided
Sampling apparatus, including：
For storing the sealable storage cabin of absorption bottle, the storage cabin is internally provided with some for placing absorption bottle
Cylinder, be additionally provided with the valve for connecting extraneous source of the gas and the absorption bottle；
The heater heated to the absorption bottle, the heater are arranged on the cylinder interior；
Also include protection device, the protection device includes：Bimetal leaf, push rod, pusher bar support, shell fragment, movable contact and
Fixed contact, the push rod are limited in the pilot hole in the pusher bar support Nei and moved up and down, and the bimetal leaf is located at described
Between the lower surface of cylinder and the push rod upper end, the fixing end of the shell fragment is fixed and free end connects with the movable contact
Connect, the movable contact with the fixed contact is due to the elastic force of the shell fragment under normal conditions and is connected, and the heating dress
The movable contact and fixed contact are passed through in the heater circuit loop put, when the temperature of the cylinder is higher than setting value, double gold
Category piece deform upon and promote the push rod to move downward and push up the free end of the shell fragment, and by the movable contact with it is described
Fixed contact separates, and makes the heater circuit loop open circuit of the heater；
Also including control system, the control system is connected with the heater, and for controlling the heater
Heating power, if the control system is additionally operable to judge the heater circuit loop in the range of the time T of setting in addition
The number of open circuit reaches the times N of setting, then the control system reduces the heating power of the heater.
Also include pulse modulation unit and power cell, the control system is built-in with PID adjustment units, the control system
System is connected by PID adjustment units, pulse modulation unit and the power cell with the heater.
Also include temperature sensing unit, damping anti-interference unit, digital filtering unit is additionally provided with the control system, it is described
Temperature sensing unit passes through the damping anti-interference unit and the digital filtering unit and the control in the cylinder
System connects.
The control system is additionally operable to count the number of the heater circuit loop open circuit, and the control system is also
Be connected with remote communication module, the control system by the number of the heater circuit loop open circuit, the heater plus
Temperature information detected by thermal power, the temperature sensing unit is sent to remote terminal by the remote communication module.
Also include refrigerating plant, the refrigerating plant includes compressor, condenser and the evaporator connected with copper pipe, described
Evaporator is arranged on inside the storage cabin to freeze to the storage cabin.
The evaporator is flexible copper pipe, and the inwall for winding cylinder is arranged on the cylinder interior.
The protection device also includes metal shell, and the metal shell includes metal upper shell body and metal lower shell body, institute
State pusher bar support to be fixed in the metal upper shell body, and the upper surface of the metal upper shell body is adjacent to the following table of the cylinder
Face, the bimetal leaf is between the lower surface of the metal upper shell body and the push rod upper end, the fixing end of the shell fragment
The bottom of the metal lower shell body is fixed on, the fixed contact is fixed on the pusher bar support.
The lower surface of the cylinder is provided with a base, and the upper surface of the metal upper shell body is adjacent to the following table of the base
Face.
The base is rectangular-shaped, and the base and the metal upper shell body are equipped with screwed hole, pass through bolt and institute
Screwed hole cooperation is stated, the metal upper shell body is closely adjacent to the base.
Compared with prior art, in due to there is the atmosphere sampler of self-protection function in the utility model, due to tool
There is the protection device, so if when being that the factors such as voltage, electric current cause the instantaneous temperature of the cylinder to be higher than setting value, institute
Bimetal leaf is stated to deform upon immediately due to its distinctive physical property and promote the push rod to move downward and push up described
The free end of shell fragment, and the movable contact is separated with the fixed contact, and the heater circuit loop of the heater is broken
Road.Ingenious part of the present utility model is the characteristics of neatly having used the temperature distortion of the bimetal leaf so that described to add
The heater circuit loop open circuit of thermal, and after the temperature of the bimetal leaf reduces, its elastic deformation diminishes, and due to
The elastic force of the shell fragment so that the movable contact is together with fixed contact reconnect so that the heater continues
Work, and resume work again after undergoing of short duration open circuit due to the heater, will not be to the temperature in the cylinder
Cause very big fluctuation, and if if the protection device continually starting protection works, the control system then sets again
The heating power of the fixed heater, makes it be worked within the scope of the temperature of safety, and the control system is also connected with remotely
Communication module, can be by the number of the heater circuit loop open circuit, the heating power of the heater, the TEMP list
Temperature information detected by member is sent to remote terminal by the remote communication module, holds the staff of remote terminal
The working condition of equipment can be then grasped at any time.
It will be become more fully apparent by following description and with reference to accompanying drawing, the utility model, these accompanying drawings are used to explain this
The embodiment of utility model.
Brief description of the drawings
Fig. 1 is the stereochemical structure signal of the one embodiment for the atmosphere sampler that the utility model has self-protection function
Figure.
Fig. 2 is the explosive view of the atmosphere sampler with self-protection function as shown in Figure 1.
Fig. 3 is the module diagram of the atmosphere sampler with self-protection function as shown in Figure 1.
Fig. 4 is the topology view of the cylinder of the atmosphere sampler with self-protection function as shown in Figure 1.
Fig. 5 is the circuit theory module map of the atmosphere sampler with self-protection function as shown in Figure 1.
Embodiment
Embodiment of the present utility model described with reference now to accompanying drawing, similar element numbers represent similar member in accompanying drawing
Part.As described above, as Figure 1-5, the atmosphere sampler with self-protection function that the utility model embodiment provides
100, including：
For storing the sealable storage cabin 1 of absorption bottle 2, the storage cabin 1 be internally provided with ten be used for place suction
The cylinder 3 of bottle 2 is received, is additionally provided with the valve 4 for connecting extraneous source of the gas and the absorption bottle 2；
The heater 5 heated to the absorption bottle 2, the heater 5 are arranged on inside the cylinder 3, institute
Water can also be filled by stating in cylinder 3, the temperature stabilization in the cylinder 3 is kept by water；
In addition, also including protection device 6, the protection device 6 includes：Bimetal leaf 7, push rod 8, pusher bar support 9, shell fragment
10th, movable contact 11 and fixed contact 12, the push rod 8 are limited in the pilot hole in the pusher bar support 9 Nei and moved up and down, and described
Bimetal leaf 7 located at the cylinder 3 lower surface and the upper end of the push rod 8 between, the fixing end of the shell fragment 10 fixed and
Free end is connected with the movable contact 11, and the movable contact 11 and the fixed contact 12 are due to the shell fragment 10 under normal conditions
Elastic force and be connected, and the movable contact 11 and fixed contact 12 are passed through in the heater circuit loop of the heater 5, when described
When the temperature of cylinder 3 is higher than setting value, the bimetal leaf 7 deforms upon and promotes the push rod 8 to move downward and push up institute
The free end of shell fragment 10 is stated, and the movable contact 11 is separated with the fixed contact 12, and makes the heating electricity of the heater 5
Road loop open circuit；
Also including control system 40, the control system 40 is connected with the heater 5, and for controlling the heating
The heating power of device 5, if the control system 40 is additionally operable to judge the heating electricity in the range of the time T of setting in addition
The number of road loop open circuit reaches the times N of setting, then the control system 40 reduces the heating power of the heater 5.
Exemplarily, in the 60 seconds time of setting, if the number of heating circuit open circuit reaches 3 times, the control system
40 reduce 0.5-5 watts of the heating power of the heater.
As shown in figure 5, also including pulse modulation unit 41 and power cell 44, the control system 40 is built-in with PID tune
Save unit 42, the control system 40 by the PID adjustment units 42, pulse modulation unit 41 and power cell 44 with it is described
Heater 5 connects.Specifically, the pulse modulation unit 41 also includes pwm unit 410 and pulse frequency is adjusted
Unit 411 processed, the PID adjustment units 42 by the pwm unit 410 and pulse frequency modulated unit 411 with
The power cell 44 connects.
As shown in figure 5, also including temperature sensing unit 461, damping anti-interference unit 462, also set in the control system 40
There is digital filtering unit 463, the temperature sensing unit 461 passes through the damping anti-interference unit in the cylinder 3
462 and the digital filtering unit 463 be connected with the control system 40.Specifically, include in the damping anti-interference unit 462
There are impedance matching unit 4621 and difference anti-interference transmission unit 4622.The temperature can be made by the impedance matching unit 462
Spend the temperature information detected by sensing unit 461 and carry out impedance matching, and the difference anti-interference transmission unit 4622 can increase
Antijamming capability in transmitting procedure by force.
In one embodiment, the control system 40 is additionally operable to unite to the number of the heater circuit loop open circuit
Meter, the control system 40 are also associated with remote communication module 50, and the control system 40 is by the heater circuit loop open circuit
Number, the heating power of the heater 5, the temperature information detected by the temperature sensing unit 461 pass through it is described
Remote communication module 50 is sent to remote terminal, holds the work feelings that the staff of remote terminal can then grasp equipment at any time
Condition.
In one embodiment, as shown in figure 3, also including refrigerating plant, the refrigerating plant includes the pressure connected with copper pipe
Contracting machine 13, condenser 14 and evaporator 15, the evaporator 15 are arranged on inside the storage cabin 1 and the storage cabin 1 are carried out
Refrigeration.
Specifically, as in above-mentioned embodiment, the evaporator 15 is flexible copper pipe, and the inwall for winding cylinder 3 is arranged on
Inside the cylinder 3.
In one embodiment, as shown in figure 3, the protection device 6 also includes metal shell, the metal shell includes gold
Belong to upper shell 16 and metal lower shell body 17, the pusher bar support 9 is fixed in the metal upper shell body 16, and the metal upper shell
The upper surface of body 16 is adjacent to the lower surface of the cylinder 3, the bimetal leaf 7 located at the lower surface of the metal upper shell body 16 with
Between the upper end of push rod 8, the fixing end of the shell fragment 10 is fixed on the bottom of the metal lower shell body 17, the fixed contact 12
It is fixed on the pusher bar support 9.
In one embodiment, as shown in Figure 3,4, the lower surface of the cylinder 3 is provided with a base 31, the metal upper shell body
16 upper surface is adjacent to the lower surface of the base 31.The base 31 and the cylinder 3 are Detachable connection structure, and described
Base 31 is made up of the good metal of heat conductivility.
As in above-mentioned embodiment, the base 31 is rectangular-shaped, and the base 31 and the metal upper shell body 16 are all provided with
There is screwed hole, coordinated by bolt and the screwed hole, the metal upper shell body 16 is closely adjacent to the base.
Compared with prior art, with reference to Fig. 1-4, due to having the atmosphere sampler of self-protection function in the utility model
In 100, due to the protection device 6, so if being the instantaneous temperature that the factors such as voltage, electric current cause the cylinder 3
During higher than setting value, the bimetal leaf 7 deformed upon immediately due to its distinctive physical property and promote the push rod 8 to
It is lower to move and push up the free end of the shell fragment 10, and the movable contact 11 is separated with the fixed contact 12, and make described add
The heater circuit loop open circuit of thermal 5.Ingenious part of the present utility model be neatly used the bimetal leaf 7 by
The characteristics of thermal deformation so that the heater circuit loop open circuit of the heater 5, and when the temperature of the bimetal leaf 7 reduces
Afterwards, its elastic deformation diminishes, and due to the elastic force of the shell fragment 10 so that the movable contact 11 and the fixed contact 12 are again
Linking together so that the heater 5 works on, and because the heater 5 undergoes of short duration open circuit weight afterwards
Newly resume work, very big fluctuation will not be caused to the temperature in the cylinder 3, and if if the protection device 6 is frequent
Ground starting protection work, the control system 40 then reset the heating power of the heater 5, make it in the temperature of safety
Operated within range is spent, and the control system 40 is also connected with remote communication module 50, can be by the heater circuit loop open circuit
Number, the heating power of the heater 5, the temperature information detected by the temperature sensing unit 461 pass through described remote
Journey communication module 50 is sent to remote terminal, holds the work feelings that the staff of remote terminal can then grasp equipment at any time
Condition.
Above disclosed is only preferred embodiment of the present utility model, certainly can not be new to limit this practicality with this
The interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the utility model and covered
Scope.
Claims (9)
1. a kind of atmosphere sampler with self-protection function, including：
For storing the sealable storage cabin of absorption bottle, the storage cabin is internally provided with some circles for being used to place absorption bottle
Cylinder, is additionally provided with the valve for connecting extraneous source of the gas and the absorption bottle；
The heater heated to the absorption bottle, the heater are arranged on the cylinder interior；
It is characterized in that：
Also include protection device, the protection device includes：Bimetal leaf, push rod, pusher bar support, shell fragment, movable contact and fixed touch
Point, the push rod is limited in the pilot hole in the pusher bar support Nei and moved up and down, and the bimetal leaf is located at the cylinder
Lower surface and the push rod upper end between, the fixing end of the shell fragment is fixed and free end is connected with the movable contact, institute
Movable contact is stated with the fixed contact to be due to the elastic force of the shell fragment under normal conditions and be connected, and the heater plus
The movable contact and fixed contact are passed through in heater circuit loop, when the temperature of the cylinder is higher than setting value, the bimetal leaf hair
Raw deformation and promote the push rod to move downward and push up the free end of the shell fragment, and by the movable contact and the fixed contact
Separation, and make the heater circuit loop open circuit of the heater；
Also including control system, the control system is connected with the heater, and for controlling adding for the heater
Thermal power, if the control system is additionally operable to judge the heater circuit loop open circuit in the range of the time T of setting in addition
Number reach the times N of setting, then the control system reduces the heating power of the heater.
2. there is the atmosphere sampler of self-protection function as claimed in claim 1, it is characterised in that：Also include impulse modulation
Unit and power cell, the control system are built-in with PID adjustment units, the control system by the PID adjustment units,
Pulse modulation unit and power cell are connected with the heater.
3. there is the atmosphere sampler of self-protection function as claimed in claim 2, it is characterised in that：Also include TEMP
Unit, anti-interference unit is damped, be additionally provided with digital filtering unit in the control system, the temperature sensing unit is located at the circle
In cylinder, and it is connected by the damping anti-interference unit and the digital filtering unit with the control system.
4. there is the atmosphere sampler of self-protection function as claimed in claim 3, it is characterised in that：The control system is also
For being counted to the number of the heater circuit loop open circuit, the control system is also associated with remote communication module, institute
Control system is stated by the number of the heater circuit loop open circuit, the heating power of the heater, the TEMP list
Temperature information detected by member is sent to remote terminal by the remote communication module.
5. there is the atmosphere sampler of self-protection function as claimed in claim 1, it is characterised in that：Also include refrigeration dress
Put, the refrigerating plant includes compressor, condenser and the evaporator connected with copper pipe, and the evaporator is arranged on the storage
The storage cabin is freezed inside cabin.
6. there is the atmosphere sampler of self-protection function as claimed in claim 5, it is characterised in that：The evaporator is soft
Property copper pipe, and wind cylinder inwall be arranged on the cylinder interior.
7. there is the atmosphere sampler of self-protection function as claimed in claim 1, it is characterised in that：The protection device is also
Including metal shell, the metal shell includes metal upper shell body and metal lower shell body, and the pusher bar support is fixed on the gold
Belong in upper shell, and the upper surface of the metal upper shell body is adjacent to the lower surface of the cylinder, the bimetal leaf is located at described
Between the lower surface of metal upper shell body and the push rod upper end, the fixing end of the shell fragment is fixed on the bottom of the metal lower shell body
Portion, the fixed contact are fixed on the pusher bar support.
8. there is the atmosphere sampler of self-protection function as claimed in claim 7, it is characterised in that：The following table of the cylinder
Face is provided with a base, and the upper surface of the metal-back upper body is adjacent to the lower surface of the base.
9. there is the atmosphere sampler of self-protection function as claimed in claim 8, it is characterised in that：The base is rectangle
Shape, and the base and the metal upper shell body are equipped with screwed hole, are coordinated by bolt and the screwed hole, by the metal
Upper shell is closely adjacent to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720339325.1U CN206906087U (en) | 2017-03-31 | 2017-03-31 | Atmosphere sampler with self-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720339325.1U CN206906087U (en) | 2017-03-31 | 2017-03-31 | Atmosphere sampler with self-protection function |
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| Publication Number | Publication Date |
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| CN206906087U true CN206906087U (en) | 2018-01-19 |
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ID=61293933
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720339325.1U Active CN206906087U (en) | 2017-03-31 | 2017-03-31 | Atmosphere sampler with self-protection function |
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| Country | Link |
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| CN (1) | CN206906087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840783A (en) * | 2017-03-31 | 2017-06-13 | 华测检测认证集团股份有限公司 | Atmospheric sampling equipment with self-protection function |
-
2017
- 2017-03-31 CN CN201720339325.1U patent/CN206906087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840783A (en) * | 2017-03-31 | 2017-06-13 | 华测检测认证集团股份有限公司 | Atmospheric sampling equipment with self-protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: 116600 No. 19-6 ShuangD Port ShuangD4 Street, Dalian Development Zone, Liaoning Province Patentee after: Dalian Huaxin physical and chemical inspection center Co., Ltd. Address before: 518101 C, Hongwei Industrial Park, 70 District, Baoan District, Shenzhen, Guangdong. Patentee before: CENTRE TESTING INTERNATIONAL GROUP CO., LTD. |
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| TR01 | Transfer of patent right |