CN209927549U

CN209927549U - Gas collection device capable of rapidly, qualitatively and quantitatively collecting gas

Info

Publication number: CN209927549U
Application number: CN201920616112.8U
Authority: CN
Inventors: 李拥军; 夏智恒; 党欣; 侯言东
Original assignee: Gansu Center For Disease Control And Prevention Gansu Academy Of Preventive Medicine
Current assignee: Gansu Center For Disease Control And Prevention Gansu Academy Of Preventive Medicine
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-10
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a poisonous and harmful gas collecting device, in particular to a collecting device for quickly determining the nature and quantity of gas, which comprises a glass tube, a rubber cap, a ventilating containing bag, a rubber ventilating block, a graphene adsorbent and quartz cotton, wherein the ventilating containing bag is arranged in the glass tube, the outer extension of the ventilating containing bag is attached to the inner wall of the glass tube, the bag mouth of the ventilating containing bag is provided with a flanging which wraps one end of the glass tube, the rubber cap is arranged at the two ends of the glass tube, the rubber cap and the glass tube form a closed cavity, the flanging is clamped between the rubber cap and the glass tube, the rubber cap wraps the flanging, the quartz cotton is arranged in the ventilating containing bag, the rubber ventilating block and the inner wall of the ventilating containing bag form an adsorbent containing cavity, the quartz cotton is arranged in the adsorbent containing cavity, the quartz cotton divides the adsorbent containing cavity into a main adsorption area and an auxiliary adsorption, the graphene adsorbent is arranged in the main adsorption area and the auxiliary adsorption area.

Description

Gas collection device capable of rapidly, qualitatively and quantitatively collecting gas

Technical Field

The utility model relates to a poisonous, harmful gas collection system, concretely relates to gaseous collection system of qualitative ration fast.

Background

In recent years, with the continuous improvement of national economic strength, newly built enterprises are more and more, the chemical industry is no exception, safety production accidents of the chemical enterprises sometimes occur, the safety accidents of the chemical enterprises generally mainly comprise acute poisoning symptoms of a large number of people, and quick qualitative results of field toxicants are needed as treatment bases in emergency of medical rescue work facing the safety production accidents of the chemical enterprises, but the research on the aspect in China is relatively weak at present.

The latest promulgated occupational health standard (GBZ/T300-2017/2018) mainly collects and qualitatively detects toxic and harmful substances recognized in a workplace, different sampling modes and detection means are adopted for different hazard factors, the sampling method is complex and diverse, the efficiency is not high, and the technology is difficult to quickly sample and collect various toxic and harmful substances in an accident scene, so that the technology becomes a bottleneck in quickly qualitatively collecting various toxic and harmful gases in the accident scene and is urgently solved.

Traditional packed column sampling pipe manufacturing process is earlier with the filler packing in glass pipe, then seals behind the hot melt of glass pipe both ends, need seal the both ends earlier during the use and open, then connects and carry out sampling work on the professional equipment, and the use procedure is loaded down with trivial details, and the waste time exists following three not enough opening when sealing simultaneously: firstly, the glass tube is easy to break when being opened, so that the sealing structure is damaged and cannot be used, and secondly, the opened gap is relatively sharp, so that an operator is easy to scratch; thirdly, the problem that the filling agent is not easy to take out exists after the gas collection is finished.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the above-mentioned prior art the utility model aims at providing a gaseous collection system of qualitative ration fast can carry out multiple poisonous, harmful gas synchronous collection, can confirm poisonous, harmful gas content simultaneously, and the filler conveniently takes out after using, and the practicality is strong, and safe and reliable has solved the problem that exists among the prior art.

The utility model adopts the technical proposal that: a collecting device for quickly determining the nature and quantity of gas is composed of glass tube, rubber cap, air permeable bag with flange at its mouth, graphene adsorbent, quartz wool, air permeable block between said glass tube and rubber cap, and quartz wool between said glass tube and rubber cap, the graphene adsorbent is arranged in the main adsorption area and the auxiliary adsorption area.

Further, the volume of the main adsorption zone is 2 times of the volume of the auxiliary adsorption zone.

Further the glass tube comprises a filling part and a connecting part, the connecting part is arranged at two ends of the filling part, the outer diameter of the connecting part is larger than that of the filling part, the breathable containing bag is arranged in the filling part, and the flanging is arranged between the connecting part and the rubber cap.

And a plurality of vent holes are formed in the rubber ventilation blocking block, the vent holes penetrate through the rubber ventilation blocking block, and the vent holes are arranged along the axis direction of the glass tube.

Further, the outer diameter of the rubber ventilation block is equal to the inner diameter of the glass tube.

Further, the vent holes are wave broken line type through holes.

And two positioning rings are further arranged in the breathable containing bag, the positioning rings are fixedly connected to the inner wall of the breathable containing bag, and the positioning rings are arranged at two ends of the rubber ventilation blocking block.

And the outer diameter of the positioning ring is equal to the inner diameter of the breathable containing bag, and the inner diameter of the positioning ring is slightly smaller than the outer diameter of the rubber ventilation blocking block.

Further, the material of the breathable containing bag is non-woven fabric.

The utility model has the advantages that: satisfy the toxicity to the different categories under special circumstances through graphite alkene adsorbent, harmful gas carries out quick collection, fix graphite alkene adsorbent in glass intraductally through ventilative splendid attire bag, can guarantee the normal use of graphite alkene adsorbent, can also solve the inconvenient problem of taking out of filler after using, utilize the rubber to ventilate the sprue intercommunication gas flow way, compress tightly graphite alkene adsorbent simultaneously and prevent that it from spilling over, still play the effect of fixed ventilative splendid attire bag, the volume through main adsorption zone is the rubber cap realization sealing to the sampling tube at both ends of the purpose of assisting 2 times of adsorption zone volume, be connected with sampling instrument when conveniently using, the mode of opening of traditional sampling tube has been changed, safety is improved, reliability.

Drawings

FIG. 1 is a schematic view of a half-section structure of the present invention;

fig. 2 is a schematic diagram of a half-section structure of the graphene adsorbent removal device of the present invention;

figure 3 is a partially enlarged semi-sectional view of an embodiment of the invention at a in figure 1,

fig. 4 is a schematic view of a second partially enlarged half-section structure of the embodiment of the present invention shown in fig. 1.

In the figure: 1. the glass tube comprises a glass tube body 101, a closed cavity 102, a filling part 103, a connecting part 2, a rubber cap 3, a breathable containing bag 301, a flanging 302, an adsorbent containing cavity 303, a main adsorption area 304, an auxiliary adsorption area 305, a positioning ring, 4 rubber ventilation blocking blocks 401, a ventilation hole 5, a graphene adsorbent and 6 quartz wool.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments: a collecting device for quickly determining the nature and quantity of gas comprises a glass tube 1, a rubber cap 2, a breathable containing bag 3, rubber ventilating blocks 4, a graphene adsorbent 5 and quartz cotton 6, wherein the breathable containing bag 3 is arranged in the glass tube 1, the outer extension of the breathable containing bag 3 is attached to the inner wall of the glass tube 1, the opening of the breathable containing bag 3 is provided with a flanging 301, the rubber cap 2 is arranged at two ends of the glass tube 1, a closed cavity 101 is formed inside the rubber cap 2 and the glass tube 1, the flanging 301 is clamped between the rubber cap 2 and the glass tube 1, the quartz cotton 6 is arranged in the breathable containing bag 3, the rubber ventilating blocks 4 are arranged at one end of the opening of the breathable containing bag 3, the rubber ventilating blocks 4 and the inner wall of the breathable containing bag 3 form an adsorbent containing cavity 302, the quartz cotton 6 is arranged in the adsorbent containing cavity 302, the adsorbent containing cavity 302 is divided into a main adsorption area 303 and an auxiliary adsorption area 304 by the quartz cotton 6, the main adsorption area 303 is arranged between the quartz cotton 6 and the rubber ventilation block 4, the graphene adsorbent 5 is arranged in the main adsorption area 303 and the auxiliary adsorption area 304, the rubber caps 2 at two ends are utilized to form the closed cavity 101 in the glass tube 1, the utility model is ensured not to be polluted before use, the graphene has better adsorption effect on various organic gases, so the graphene adsorbent 5 adopted by the utility model is the graphene adsorbent 5, but the price of the graphene material is higher, the traditional sampling tube has the condition that the adsorbent is not easy to take out and is easy to spill after use, therefore, the ventilation containing bag 3 is additionally arranged, the graphene adsorbent 5 is contained in the ventilation containing bag 3, then the ventilation containing bag 3 is plugged into the glass tube 1, the ventilation containing bag 3 is fixed in the glass tube 1 through the rubber ventilation block 4, the ventilation containing bag 3 is additionally provided with a flange 301, on the one hand can play the further fixed of ventilative splendid attire bag 3, on the other hand is for the back that finishes using, takes off rubber cap 2, can directly pull out ventilative splendid attire bag 3 through turn-ups 301.

Furthermore, the volume of the main adsorption area 303 is 2 times of the volume of the auxiliary adsorption area 304, so as to prevent the main adsorption area 303 from incompletely adsorbing and performing secondary adsorption due to over-saturation or over-high concentration of toxic and harmful gases, and ensure that the amount of toxic and harmful gases collected by the filler of the auxiliary adsorption area 304 is less than 5% of the total amount of toxic and harmful gases collected by the sealed cavity 101, and if the amount of toxic and harmful gases is greater than or equal to 5%, the penetration is called, so as to complete the purpose of quantitative detection.

Further, the glass tube 1 comprises a filling part 102 and a connecting part 103, the connecting part 103 is arranged at two ends of the filling part 102, the outer diameter of the connecting part 103 is larger than that of the filling part 102, the breathable containing bag 3 is arranged in the filling part 102, the turned edge 301 is arranged between the connecting part 103 and the rubber cap 2, the connecting part 103 is additionally arranged for facilitating quick connection with detection equipment on one hand and ensuring that in the process of storage and transportation on the other hand, the utility model discloses all be the rubber cap 2 at both ends and other physical contact, prevent that glass pipe 1 from taking place to break and unable use, rubber cap 2 parcel connecting portion 103 can guarantee on the one hand the utility model discloses an air tightness, on the other hand have changed traditional sampling pipe and have opened the mode, and direct plug connects broken rubber cap 2 during the use and connects and can normally use, has avoided traditional opening mode to lead to the sampling pipe to break and the problem that the opening part can the fish tail staff.

As shown in the first embodiment of fig. 3, a plurality of vent holes 401 are formed in the rubber vent block 4, the vent holes 401 penetrate through the rubber vent block 4, the vent holes 401 are arranged along the axial direction of the glass tube 1, the vent holes 401 play a role in communicating with a gas flow passage, the outer diameter of the rubber vent block 4 is set to be equal to the inner diameter of the glass tube 1, and the breathable holding bag 3 is clamped between the rubber vent block 4 and the glass tube 1 to play a role in fixing.

As shown in the second embodiment of fig. 4, the vent hole 401 is a zigzag line type through hole, two positioning rings 305 are arranged in the breathable bag 3, the positioning rings 305 are fixedly connected to the inner wall of the breathable bag 3, the positioning rings 305 are arranged at two ends of the rubber vent block 4, the outer diameter of the positioning rings 305 is equal to the inner diameter of the breathable bag 3, the inner diameter of the positioning rings 205 is slightly smaller than the outer diameter of the rubber vent block 4, the vent hole 401 is arranged to be a zigzag line type through hole, which increases the flow resistance of the graphene adsorbent 5 entering the vent hole 401, and prevents the graphene adsorbent 5 from overflowing from the vent hole 401, the positioning rings 305 are added, on one hand, the support function of the breathable bag 3 can be achieved, and at the same time, the positioning and fixing device of the rubber vent block 4 is also used, so as to limit the filling amount of the graphene adsorbent 5, the size of the positioning rings 205 is limited to, simultaneously also make things convenient for the installation of rubber block 4 of ventilating, can ventilate the tight block 4 clamp with rubber, and then the block 4 of ventilating of rubber compresses tightly graphite alkene adsorbent 5.

The material of the breathable containing bag 3 is non-woven fabric, and the non-woven fabric is selected for ventilation on one hand and is not easy to generate chemical reaction with other substances on the other hand.

During the use, prick the rubber cap 2 at both ends, then will the utility model discloses quick connection samples on gaseous sampling equipment, after the sampling, takes off the rubber cap 2 at both ends, holds turn-ups 301 and directly pulls out ventilative splendid attire bag 3, takes out graphite alkene adsorbent 5 and detects work.

Claims

1. The utility model provides a gaseous collection system of qualitative ration fast which characterized in that: comprises a glass tube (1), a rubber cap (2), a breathable containing bag (3), a rubber ventilation block (4), a graphene adsorbent (5) and quartz cotton (6), wherein the breathable containing bag (3) is arranged in the glass tube (1), the outer extension of the breathable containing bag (3) is attached to the inner wall of the glass tube (1), a flanging (301) is arranged at the bag opening of the breathable containing bag (3), the rubber caps (2) are arranged at two ends of the glass tube (1), a closed cavity (101) is formed inside the rubber cap (2) and the glass tube (1), the flanging (301) is clamped between the rubber cap (2) and the glass tube (1), the quartz cotton (6) is arranged in the breathable containing bag (3), the rubber ventilation block (4) is arranged at one end of the breathable containing bag (3), and the rubber ventilation block (4) and the inner wall of the breathable containing bag (3) form an adsorbent containing cavity (302), quartz wool (6) sets up in adsorbent splendid attire chamber (302), and quartz wool (6) is cut apart into main adsorption zone (303) and is assisted adsorption zone (304) with adsorbent splendid attire chamber (302), and main adsorption zone (303) set up between quartz wool (6) and rubber block (4) of ventilating, and graphite alkene adsorbent (5) set up in main adsorption zone (303) and assistance adsorption zone (304).

2. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 1, wherein: the volume of the main adsorption zone (303) is 2 times the volume of the auxiliary adsorption zone (304).

3. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 1, wherein: the glass tube (1) comprises a filling part (102) and a connecting part (103), wherein the connecting part (103) is arranged at two ends of the filling part (102), the outer diameter of the connecting part (103) is larger than that of the filling part (102), the breathable containing bag (3) is arranged in the filling part (102), and the flanging (301) is arranged between the connecting part (103) and the rubber cap (2).

4. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 1, wherein: the rubber ventilation blocking block (4) is provided with a plurality of ventilation holes (401), the ventilation holes (401) penetrate through the rubber ventilation blocking block (4), and the ventilation holes (401) are arranged along the axial direction of the glass tube (1).

5. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 4, wherein: the outer diameter of the rubber ventilation block (4) is equal to the inner diameter of the glass tube (1).

6. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 4, wherein: the vent holes (401) are wavy line type through holes.

7. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 1, wherein: two positioning rings (305) are arranged in the breathable filling bag (3), the positioning rings (305) are fixedly connected to the inner wall of the breathable filling bag (3), and the positioning rings (305) are arranged at two ends of the rubber ventilation blocking block (4).

8. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 7, wherein: the outer diameter of the positioning ring (305) is equal to the inner diameter of the breathable containing bag (3), and the inner diameter of the positioning ring (305) is slightly smaller than the outer diameter of the rubber ventilation blocking block (4).

9. The device for rapidly, qualitatively and quantitatively collecting gas as claimed in claim 1, wherein: the breathable containing bag (3) is made of non-woven fabrics.