阅读说明：本技术 一种环境监测用超大流量空气采样现场标定装置 (Ultra-large flow air sampling field calibration device for environmental monitoring ) 是由 邓维爱 李华栈 彭文斌 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种环境监测用超大流量空气采样现场标定装置,包括标定仪主体、采样器主体、防护座、采样流量传感器、采样温度传感器、采样压力传感器、标准温度传感器、标准压力传感器、阻燃网板、阻燃网罩、防护封板、防护外壳、连接槽、连接板、限位槽、限位条和通风网板；该发明具备自动化的无人采样功能,无需人员现场实时操作,避免了人为读数误差,确保了装置采样结果的精确性,流程简洁、标定时间短,提高了装置的工作效率,有利于装置的大面积普及,提高了装置的防护性能,减少了外力损伤,延长了装置的使用寿命,且具备阻燃功能,能对可燃性气体的进行空气采样,扩大了装置的适用范围。(The invention discloses an ultra-large flow air sampling field calibration device for environmental monitoring, which comprises a calibrator main body, a sampler main body, a protective seat, a sampling flow sensor, a sampling temperature sensor, a sampling pressure sensor, a standard temperature sensor, a standard pressure sensor, a flame-retardant screen plate, a flame-retardant screen cover, a protective sealing plate, a protective shell, a connecting groove, a connecting plate, a limiting groove, a limiting strip and a ventilation screen plate, wherein the sampler main body is arranged on the calibrator main body; the device has an automatic unmanned sampling function, does not need real-time operation of personnel on site, avoids artificial reading errors, ensures the accuracy of the sampling result of the device, has simple flow and short calibration time, improves the working efficiency of the device, is beneficial to large-area popularization of the device, improves the protection performance of the device, reduces external force damage, prolongs the service life of the device, has a flame retardant function, can carry out air sampling on combustible gas, and enlarges the application range of the device.)

1. The utility model provides an environmental monitoring is with super large flow air sampling field calibration device which characterized in that: the sampler comprises a calibration instrument main body (1), a sampler main body (2), a protective seat (3), a first fixing groove (4), a sampling port (6), a sampling flow sensor (7), a sampling temperature sensor (8), a sampling pressure sensor (9), a standard temperature sensor (10), a standard pressure sensor (11), a touch display screen (24), a central processing module (25), a data acquisition module (26), a data analysis module (27), a data compensation module (28), a communication receiving module (29) and a communication transmission module (30), wherein the calibration instrument main body (1) is fixedly embedded in the front bottom end of the protective seat (3) through the first fixing groove (4), the calibration instrument main body (1) is connected with the sampler main body (2) through a network, the sampling port (6) is arranged at the center of the top of the sampler main body (2), and the sampling flow sensor (7) is arranged at the center and the top of the side face of the sampler main body (2), A sampling temperature sensor (8), a sampling pressure sensor (9), a standard temperature sensor (10) and a standard pressure sensor (11); the calibration instrument comprises a calibration instrument main body (1) and is characterized in that a touch display screen (24) is arranged in the center of the front face of the calibration instrument main body (1), a central processing module (25) and a data acquisition module (26) are respectively arranged in the center and at the top of the back face of the touch display screen (24), and a data analysis module (27), a data compensation module (28), a communication receiving module (29) and a communication transmission module (30) are respectively arranged at four corners of the back face of the touch display screen (24).

2. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 1, characterized in that: still include second fixed slot (5), fire-retardant otter board (12), fire-retardant screen panel (13), protection shrouding (14), locking screw (15), locking screw (16), protecting sheathing (17), spread groove (18), connecting plate (19), spacing groove (20), spacing strip (21), connecting screw (22) and connecting screw (23), the bottom of sample thief main part (2) contacts with the top of fire-retardant otter board (12), and sample thief main part (2) and fire-retardant otter board (12) all inlay the center in the bottom of fire-retardant screen panel (13), sample thief main part (2) and fire-retardant otter board (12) inlay the center at protecting seat (3) top through second fixed slot (5), and the outer fringe at fire-retardant screen panel (13) top contacts with the inner edge of protecting shrouding (14) bottom, the outer fringe of protecting shrouding (14) bottom passes through locking screw (15) and locking screw (16) and protecting sheathing (17) top the center of protecting sheathing (17) The outer fringe fixed connection of portion, protective housing (17) cup joints on the outer wall of fire-retardant screen panel (13), and protective housing's (17) bottom is through spread groove (18), connecting plate (19), spacing groove (20), spacing strip (21), connection screw (22) and connecting screw (23) and the outer fringe fixed connection at protective seat (3) top.

3. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 2, characterized in that: the bottom of protection seat (3) both sides all is provided with fixed otic placode (31), fixed orifices (32) have all been seted up to the both sides at fixed otic placode (31) top.

4. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 2, characterized in that: the locking screw holes (15) are respectively formed in the four corners and four edges of the outer edge of the bottom of the protective sealing plate (14) and the four corners and four edges of the outer edge of the top of the protective shell (17), and locking screws (16) are embedded in the locking screw holes (15).

5. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 2, characterized in that: the connecting grooves (18) are respectively arranged on four sides of the outer edge of the top of the protective seat (3), connecting plates (19) are embedded in the connecting grooves (18), and the connecting plates (19) are respectively arranged on four sides of the outer edge of the bottom of the protective shell (17).

6. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 2, characterized in that: the limiting grooves (20) are respectively formed in the top ends of the front surface and the two sides of the protective seat (3) and the center of the side surface of the connecting plate (19), and limiting strips (21) are embedded in the limiting grooves (20).

7. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 2, characterized in that: the connecting screw holes (22) are respectively formed in the top ends of the front surface and the two sides of the protective seat (3) and the two sides of the side surface of the limiting strip (21), and connecting screws (23) are embedded in the connecting screw holes (22).

8. The on-site calibration device for the ultra-large flow air sampling for environmental monitoring according to claim 2, characterized in that: the outer wall of the sampling port (6) is respectively sleeved with a flame-retardant mesh enclosure (13) and a protective sealing plate (14), and the inside of the sampling port (6) is fixedly embedded with a ventilation mesh plate (33).

Technical Field

The invention relates to the technical field of environmental monitoring, in particular to a super-large-flow air sampling field calibration device for environmental monitoring.

Background

The environment monitoring is an activity for monitoring and measuring the environment quality condition, and the environmental pollution condition and the environment quality are determined by monitoring and measuring the indexes reflecting the environment quality, and the content mainly comprises the monitoring of physical indexes, the monitoring of chemical indexes and the monitoring of an ecosystem. At present, in the environment monitoring activity, an ultra-large flow air sampling field calibration device is mainly used, the measured values of flow, temperature and pressure are measured through a sensor, then the actual values of the temperature and the pressure are calculated according to the compensation values of the temperature and the pressure, and further the actual values of the flow are determined, and the real data of a sample are obtained.

However, most of the conventional ultra-large flow air sampling field calibration devices have the following problems: firstly, the device does not have an automatic unmanned sampling function, needs real-time field operation by personnel, has large artificial reading error, influences the accuracy of the sampling result of the device, has complex flow, long calibration time and low working efficiency, and is not beneficial to large-area popularization of the device; secondly, the protective performance is insufficient, the device is easily damaged by external force, the service life of the device is shortened, the device does not have a flame retardant function, the combustible gas cannot be sampled by air, and the application range of the device is limited; thirdly, the sampling part adopts integral fixed knot to construct more, inconvenient installation and dismantlement, and the maintenance is changed difficultly, and personnel intensity of labour is big, has increased the running cost of device.

Disclosure of Invention

The invention aims to provide a super-large flow air sampling field calibration device for environment monitoring and an implementation method thereof, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an environmental monitoring is with super large flow air sampling field calibration device which characterized in that: the sampler comprises a calibrator main body, a sampler main body, a protective seat, a first fixing groove, a sampling port, a sampling flow sensor, a sampling temperature sensor, a sampling pressure sensor, a standard temperature sensor, a standard pressure sensor, a touch display screen, a central processing module, a data acquisition module, a data analysis module, a data compensation module, a communication receiving module and a communication transmission module, wherein the calibrator main body is fixedly embedded at the bottom end of the front surface of the protective seat through the first fixing groove, the calibrator main body is connected with the sampler main body through a network, the sampling port is arranged at the center of the top of the sampler main body, and the sampling flow sensor, the sampling temperature sensor, the sampling pressure sensor, the standard temperature sensor and the standard pressure sensor are respectively arranged at the center and the top of the side surface of the sampler main body; the calibration instrument comprises a calibration instrument body and is characterized in that a touch display screen is arranged in the center of the front face of the calibration instrument body, a central processing module and a data acquisition module are respectively arranged in the center and at the top of the back face of the touch display screen, and a data analysis module, a data compensation module, a communication receiving module and a communication transmission module are respectively arranged at four corners of the back face of the touch display screen.

The ultra-large flow air sampling field calibration device for environmental monitoring further comprises a second fixing groove, a flame-retardant screen, a protective sealing plate, a locking screw hole, a locking screw, a protective shell, a connecting groove, a connecting plate, a limiting groove, a limiting strip, a connecting screw hole and a connecting screw, wherein the bottom of the sampler main body is in contact with the top of the flame-retardant screen, the sampler main body and the flame-retardant screen are embedded in the center of the bottom of the flame-retardant screen, the sampler main body and the flame-retardant screen are embedded in the center of the top of the protective seat through the second fixing groove, the outer edge of the top of the flame-retardant screen is in contact with the inner edge of the bottom of the protective sealing plate, the outer edge of the bottom of the protective sealing plate is fixedly connected with the outer edge of the top of the protective shell through the locking screw hole and the locking screw, the protective shell is sleeved on the outer wall of the flame-retardant screen, and the bottom of the protective shell is in contact with the connecting groove, The connecting plate, the limiting groove, the limiting strip, the connecting screw hole and the connecting screw are fixedly connected with the outer edge of the top of the protective seat. According to the technical scheme, the bottom ends of the two sides of the protection seat are provided with the fixed ear plates, and the two sides of the top of each fixed ear plate are provided with the fixed holes.

According to the technical scheme, the locking screw holes are respectively formed in the four corners and the four sides of the outer edge of the bottom of the protective sealing plate and the four corners and the four sides of the outer edge of the top of the protective shell, and the locking screws are embedded in the locking screw holes.

According to the technical scheme, the connecting grooves are respectively formed in the four sides of the outer edge of the top of the protection seat, the connecting plates are embedded in the connecting grooves, and the connecting plates are respectively arranged on the four sides of the outer edge of the bottom of the protection shell.

According to the technical scheme, the limiting grooves are respectively formed in the top ends of the front surface and the two sides of the protection seat and in the centers of the side surfaces of the connecting plates, and the limiting strips are embedded in the limiting grooves.

According to the technical scheme, the connecting screw holes are respectively formed in the top ends of the front surface and the two sides of the protective seat and the two sides of the side surface of the limiting strip, and the connecting screws are embedded in the connecting screw holes.

According to the technical scheme, the outer wall of the sampling port is respectively sleeved with the flame-retardant mesh enclosure and the protective sealing plate, and the inside of the sampling port is fixedly embedded with the ventilation mesh plate.

An implementation method of a super-large flow air sampling field calibration device for environmental monitoring comprises the following steps: step one, installation; step two, sampling; step three, calibrating, step four, replacing;

in the first step, the protection seat is installed at a designated position through the fixing ear plate and the fixing hole, the calibrator main body is embedded on the protection seat through the first fixing groove, the sampler main body and the flame-retardant screen plate are embedded inside the flame-retardant screen cover, the flame-retardant screen cover is embedded on the protection seat through the second fixing groove, then the protection shell is installed on the protection seat by embedding the connecting plate into the connecting groove, embedding the limiting strip into the limiting groove and embedding the connecting screw into the connecting screw hole, and then installing the protection sealing plate on the protection shell by embedding the locking screw into the locking screw hole to wrap the flame-retardant screen cover;

in the second step, sending an instruction to the central processing module through manual control of the touch display screen or through the communication receiving module, so that external air to be measured enters the interior of the calibrator main body through the sampling port and the ventilation screen plate, and respectively measuring a flow measurement value, a temperature measurement value, a pressure measurement value, a temperature standard value and a pressure standard value of an air sample to be measured through the sampling flow sensor, the sampling temperature sensor, the sampling pressure sensor, the standard temperature sensor and the standard pressure sensor;

in the third step, the sampler main body sends the flow measurement value, the temperature measurement value, the pressure measurement value, the temperature standard value and the pressure standard value to the data acquisition module through a network, and sends the data acquisition module to the data analysis module through the central processing module, calculates the flow compensation value by using the errors between the temperature measurement value and the temperature standard value as well as between the pressure measurement value and the pressure standard value, and then sends the flow compensation value to the data compensation module, calculates the actual flow value by using the flow compensation value and the flow measurement value, obtains the real data of the sample, sends the actual flow value to the environment monitoring platform through the communication transmission module, and displays the data through the touch display screen;

wherein in the fourth step, through making locking screw break away from the locking screw will, thereby take off on the protective housing of protection shrouding, take out fire-retardant screen panel from protective housing and protection seat again, and then take out the sample thief main part from fire-retardant screen panel.

Compared with the prior art, the invention has the following beneficial effects: the invention has the automatic unmanned sampling function, does not need the real-time operation of personnel on site, avoids the artificial reading error, ensures the accuracy of the sampling result of the device, has simple flow and short calibration time, improves the working efficiency of the device and is beneficial to the large-area popularization of the device; the device has the advantages that the protection performance of the device is improved, the external force damage is reduced, the service life of the device is prolonged, the device has a flame-retardant function, the combustible gas can be subjected to air sampling, and the application range of the device is expanded; the sampling component adopts a split type fixing structure, is convenient to install and disassemble, is convenient and quick to maintain and replace, reduces the labor intensity of personnel, and saves the operation cost of the device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front partial cross-sectional view of the overall construction of the present invention;

FIG. 2 is a left side cross-sectional view of the overall construction of the present invention;

FIG. 3 is a top plan view of the overall structure of the present invention;

FIG. 4 is a perspective view of the shield seat of the present invention;

FIG. 5 is a perspective view of the protective housing of the present invention;

FIG. 6 is a rear view of a touch display screen according to the present invention;

FIG. 7 is a system flow diagram of the present invention;

FIG. 8 is a flow chart of a method of the present invention;

in the figure: 1. a calibration instrument main body; 2. a sampler body; 3. a protective seat; 4. a first fixing groove; 5. a second fixing groove; 6. a sampling port; 7. a sampling flow sensor; 8. a sampling temperature sensor; 9. a sampling pressure sensor; 10. a standard temperature sensor; 11. a standard pressure sensor; 12. a flame-retardant screen plate; 13. a flame-retardant mesh enclosure; 14. a protective seal plate; 15. locking the screw hole; 16. locking the screw; 17. a protective housing; 18. connecting grooves; 19. a connecting plate; 20. a limiting groove; 21. a limiting strip; 22. a connecting screw hole; 23. a connecting screw; 24. a touch display screen; 25. a central processing module; 26. a data acquisition module; 27. a data analysis module; 28. a data compensation module; 29. a communication receiving module; 30. a communication transmission module; 31. fixing the ear plate; 32. a fixing hole; 33. and (4) ventilating the screen plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: an ultra-high flow air sampling field calibration device for environmental monitoring comprises a calibration instrument main body 1, a sampler main body 2, a protective seat 3, a first fixing groove 4, a second fixing groove 5, a sampling port 6, a sampling flow sensor 7, a sampling temperature sensor 8, a sampling pressure sensor 9, a standard temperature sensor 10, a standard pressure sensor 11, a flame-retardant screen 12, a flame-retardant screen 13, a protective sealing plate 14, a locking screw hole 15, a locking screw 16, a protective shell 17, a connecting groove 18, a connecting plate 19, a limiting groove 20, a limiting strip 21, a connecting screw hole 22, a connecting screw 23, a touch display screen 24, a central processing module 25, a data acquisition module 26, a data analysis module 27, a data compensation module 28, a communication receiving module 29, a communication transmission module 30, a fixed lug plate 31, a fixing hole 32 and a ventilation screen 33, wherein the calibration instrument main body 1 is fixed at the bottom end of the front face of the protective seat 3 through the first fixing groove 4, the center of the front surface of the calibrator main body 1 is provided with a touch display screen 24, the center and the top of the back surface of the touch display screen 24 are respectively provided with a central processing module 25 and a data acquisition module 26, four corners of the back surface of the touch display screen 24 are respectively provided with a data analysis module 27, a data compensation module 28, a communication receiving module 29 and a communication transmission module 30, the calibrator main body 1 is connected with the sampler main body 2 through a network, the center of the top of the sampler main body 2 is provided with a sampling port 6, the outer wall of the sampling port 6 is respectively sleeved with a flame-retardant mesh enclosure 13 and a protective sealing plate 14, the inside of the sampling port 6 is fixedly embedded with a ventilation mesh plate 33, the center and the top of the side surface of the sampler main body 2 are respectively provided with a sampling flow sensor 7, a sampling temperature sensor 8, a sampling pressure sensor 9, a standard temperature sensor 10 and a standard pressure sensor 11, and have an automatic unmanned sampling function, the real-time operation of personnel on site is not needed, the artificial reading error is avoided, the accuracy of the sampling result of the device is ensured, the flow is simple, the calibration time is short, the working efficiency of the device is improved, and the large-area popularization of the device is facilitated; the bottom of the sampler main body 2 contacts with the top of the flame-retardant screen plate 12, the sampler main body 2 and the flame-retardant screen plate 12 are embedded in the center of the bottom of the flame-retardant screen 13, the sampler main body 2 and the flame-retardant screen plate 12 are embedded in the center of the top of the protective seat 3 through the second fixing groove 5, the outer edge of the top of the flame-retardant screen 13 contacts with the inner edge of the bottom of the protective sealing plate 14, the outer edge of the bottom of the protective sealing plate 14 is fixedly connected with the outer edge of the top of the protective shell 17 through locking screw holes 15 and locking screws 16, the locking screw holes 15 are respectively arranged at the four corners and four sides of the outer edge of the bottom of the protective sealing plate 14 and the four corners and four sides of the outer edge of the top of the protective shell 17, the locking screws 16 are embedded in the locking screw holes 15, the protective shell 17 is sleeved on the outer wall of the flame-retardant screen 13, the protective performance of the device is improved, the external force damage is reduced, and the service life of the device is prolonged, the flame-retardant sampling device has a flame-retardant function, can sample air of combustible gas, and enlarges the application range of the device; the bottom of the protective shell 17 is fixedly connected with the outer edge of the top of the protective seat 3 through a connecting groove 18, a connecting plate 19, a limiting groove 20, a limiting strip 21, a connecting screw hole 22 and a connecting screw 23, the connecting grooves 18 are respectively arranged on the four sides of the outer edge of the top of the protective seat 3, the connecting plates 19 are embedded in the connecting groove 18, the connecting plates 19 are respectively arranged on the four sides of the outer edge of the bottom of the protective shell 17, the limiting grooves 20 are respectively arranged on the top ends of the front surface and the two sides of the protective seat 3 and the center of the side surface of the connecting plate 19, the limiting strip 21 is embedded in the limiting groove 20, the connecting screw holes 22 are respectively arranged on the top ends of the front surface and the two sides of the protective seat 3 and the two sides of the limiting strip 21, the connecting screw hole 22 is embedded with the connecting screw 23, the bottom ends of the two sides of the protective seat 3 are respectively provided with a fixing lug plate 31, the two sides of the top of the fixing lug plate 31 are respectively provided with a fixing hole 32, the sampling part adopts a split type fixing structure, the device is convenient to mount and dismount, convenient and quick to maintain and replace, reduces the labor intensity of personnel, and saves the operation cost of the device.

Referring to fig. 8, the present invention provides a technical solution: an implementation method of a super-large flow air sampling field calibration device for environmental monitoring comprises the following steps: step one, installation; step two, sampling; step three, calibrating, step four, replacing;

in the first step, the protection seat 3 is installed at a designated position through the fixing ear plate 31 and the fixing hole 32, the calibrator body 1 is embedded on the protection seat 3 through the first fixing groove 4, the sampler body 2 and the flame-retardant screen plate 12 are embedded inside the flame-retardant screen cover 13, the flame-retardant screen cover 13 is embedded on the protection seat 3 through the second fixing groove 5, then the protection shell 17 is installed on the protection seat 3 by embedding the connecting plate 19 into the connecting groove 18, the limiting strip 21 into the limiting groove 20 and the connecting screw 23 into the connecting screw hole 22, and then the locking screw 16 into the locking screw hole 15 to install the protection closing plate 14 on the protection shell 17 to wrap the flame-retardant screen cover 13;

in the second step, an instruction is sent to the central processing module 25 through manual control of the touch display screen 24 or through the communication receiving module 29, so that external air to be measured enters the interior of the calibrator main body 1 through the sampling port 6 and the ventilation screen 33, and a flow measurement value, a temperature measurement value, a pressure measurement value, a temperature standard value and a pressure standard value of an air sample to be measured are respectively measured through the sampling flow sensor 7, the sampling temperature sensor 8, the sampling pressure sensor 9, the standard temperature sensor 10 and the standard pressure sensor 11;

in the third step, the sampler main body 2 sends the flow measurement value, the temperature measurement value, the pressure measurement value, the temperature standard value and the pressure standard value to the data acquisition module 26 through the network, and sends the flow measurement value, the temperature measurement value, the pressure measurement value and the pressure standard value to the data analysis module 27 through the central processing module 25, calculates the flow compensation value by using the errors between the temperature measurement value and the temperature standard value, and the pressure measurement value and the pressure standard value, sends the flow compensation value to the data compensation module 28, calculates the actual flow value by using the flow compensation value and the flow measurement value, obtains the real data of the sample, sends the actual flow compensation value to the environment monitoring platform through the communication transmission module 30, and displays the data through the touch display screen 24;

in the fourth step, the locking screw 16 is disengaged from the locking screw hole 15, so that the protective enclosure plate 14 is taken down from the protective shell 17, the flame-retardant mesh enclosure 13 is taken out from the protective shell 17 and the protective seat 3, and the sampler main body 2 is taken out from the flame-retardant mesh enclosure 13.

Based on the above, the present invention has the advantages that when the present invention is used, firstly, the touch display screen 24 is used for manually controlling or the communication receiving module 29 is used for sending an instruction to the central processing module 25, so that the external air to be measured enters the interior of the calibration instrument main body 1 through the sampling port 6 and the ventilation screen 33, the flow measurement value, the temperature measurement value, the pressure measurement value, the temperature standard value and the pressure standard value of the air sample to be measured are respectively measured through the sampling flow sensor 7, the sampling temperature sensor 8, the sampling pressure sensor 9, the standard temperature sensor 10 and the standard pressure sensor 11, the flow measurement value, the temperature measurement value, the pressure measurement value, the temperature standard value and the pressure standard value are sent to the data acquisition module 26 through the network, and the flow measurement value, the temperature measurement value, the pressure measurement value, the temperature standard value and the pressure standard value are sent to the data analysis module 27 through the central processing module 25, and the temperature measurement value, the temperature standard value, the pressure standard value and the pressure standard value are used, The error between the pressure measurement value and the pressure standard value is used to calculate a flow compensation value, and then the flow compensation value is sent to the data compensation module 28, the actual flow value is calculated by using the flow compensation value and the flow measurement value, the actual data of the sample is obtained, and then the actual data is sent to the environment monitoring platform through the communication transmission module 30, and the data is displayed through the touch display screen 24, and finally, the protective closing plate 14 is taken down from the protective shell 17 by separating the locking screw 16 from the locking screw hole 15, and then the flame-retardant mesh enclosure 13 is taken out from the protective shell 17 and the protective seat 3, and then take out sampler main part 2 from fire-retardant screen panel 13, possess automatic unmanned sampling function, need not personnel's on-the-spot real-time operation, avoided artificial reading error, ensured the accuracy nature of device sampling result, the flow is succinct, calibration time is short, has improved the work efficiency of device, is favorable to the large tracts of land popularization of device.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.