CN219416605U - Gas circuit leak detection mechanism of gas sampler - Google Patents

Abstract

The utility model relates to a gas circuit leakage detection mechanism of a gas sampler, which comprises a supporting plate, wherein an organism is fixedly arranged at the upper end part of the supporting plate, a supporting plate is fixedly connected to the outer side of the organism, a sampling bottle is placed on the supporting plate, a triangular bracket is arranged at the lower end part of the supporting plate, a leakage detection assembly is arranged on the supporting plate and the organism, the leakage detection assembly comprises a mounting bin, one end of the mounting bin is fixedly connected with the lower end part of the supporting plate, and a vacuum pump is fixedly arranged at the inner side of the mounting bin. This gas circuit of gas sampler leaks and examines mechanism, through the exhaust tube on the vacuum pump with the collection mouth intercommunication on the sampling bottle after, the accessible rotates the screw rod and drives two solid fixed rings and press from both sides tight sealedly to the junction of exhaust tube and sampling bottle, later with the sampling bottle after pumping to the vacuum, can observe whether the manometer is stable, can judge whether sampling bottle or sampling bottle and organism junction produce and leak to improve gas analysis validity.

Description

Gas circuit leak detection mechanism of gas sampler

Technical Field

The utility model relates to the technical field of gas collection and analysis, in particular to a gas circuit omission detecting mechanism of a gas sampler.

Background

The gas sampling instrument is a conventional instrument for collecting gas samples in the atmospheric environment or the working environment, and the gas sampling instrument is an independent gas path system formed by two air pumps respectively, can collect two gas samples or collect balance samples simultaneously, has quick and reliable sampling work, can be widely applied to departments of metallurgy, mines, chemical industry, construction, casting, electric power and environment monitoring, sanitation and epidemic prevention and the like, has the advantages of compact electronic timing function, compact rhythm, small volume, stable and reliable performance and the like, and is a relatively ideal product in the current domestic atmospheric sampling instrument.

The utility model of publication number CN210266456U, the gas sampler disclosed comprises a machine body, the bottom of organism is provided with the tripod, the equal swing joint in left side and the right side of organism has the sampling bottle, the equal fixedly connected with in left side and the right side of organism places the board, the top intercommunication of placing the board has places the bucket, through setting up chucking mechanism, can make the chucking pole carry out spacing fixed to the movable sleeve to reach and compress tightly the spacing purpose of cover, improved the degree of compressing tightly fixedly to the sampling bottle, improved the stability in the sampling bottle use.

However, before the gas is sampled by the sampling bottle in the above application, the sampling bottle is inconvenient to leak the sampling bottle, and when leakage exists between the sampling bottle or the sampling bottle and the machine body, the analysis of the concentration or the composition of the subsequent gas is easily affected, so that the effectiveness of the gas analysis result is affected, and therefore, the gas path leak detection mechanism of the gas sampler is provided to solve the above problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a gas path missed detection mechanism of a gas sampler, which has the advantages of improving the effectiveness of gas analysis and the like, and solves the problem of inconvenience in missed detection before acquisition.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the gas path leakage detection mechanism of the gas sampler comprises a support plate, wherein a machine body is fixedly arranged at the upper end part of the support plate, a support plate is fixedly connected to the outer side of the machine body, a sampling bottle is placed on the support plate, a triangular bracket is arranged at the lower end part of the support plate, and a leakage detection assembly is arranged on the support plate and the machine body;

the leak detection assembly comprises an installation bin with one end fixedly connected with the lower end part of the supporting plate, a vacuum pump is fixedly installed on the inner side of the installation bin, a supporting block is fixedly connected on the outer side of the supporting plate, an exhaust pipe with one end penetrating through the supporting block is communicated with an air inlet end of the vacuum pump, a stop block is fixedly connected on the outer side of the exhaust pipe, a control valve is fixedly installed on the outer side of the exhaust pipe, a pressure gauge is fixedly installed on the outer side of the exhaust pipe, and a fixing assembly is arranged on the outer side of the machine body.

Further, the outside of supporting shoe is offered and is located the perforation in the exhaust tube outside, the specification of perforation and exhaust tube's specification phase-match.

Further, the specification of the through hole is smaller than that of the stop block, and the exhaust pipe is a hose.

Further, the number of the supporting blocks is two, and the two supporting blocks are distributed in a bilateral symmetry mode.

Further, fixed subassembly includes the bracing piece of the outside fixed connection of one end and organism, the outside sliding connection of bracing piece has two connecting blocks in quantity, the one end fixedly connected with solid fixed ring of connecting block, the outside fixedly connected with fixed block of solid fixed ring, the inside threaded connection of fixed block has the screw rod.

Further, the support rods are U-shaped, the number of the support rods is two, and the two support rods are distributed in a bilateral symmetry mode.

Further, the front side the screw hole in the screw outside has been seted up to the inside of fixed block, the screw hole cooperates with the screw thread in the screw outside, and the rear side the round hole in the screw outside has been seted up to the inside of fixed block.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this gas circuit of gas sampler leaks and examines mechanism, through the exhaust tube on the vacuum pump with the collection mouth intercommunication on the sampling bottle after, the accessible rotates the screw rod and drives two solid fixed rings and press from both sides tight sealedly to the junction of exhaust tube and sampling bottle, later with the sampling bottle after pumping to the vacuum, can observe whether the manometer is stable, can judge whether sampling bottle or sampling bottle and organism junction produce and leak to improve gas analysis validity.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a leak detection assembly according to the present utility model;

fig. 3 is a top view of the structure of the fixing assembly of the present utility model.

In the figure: 1 backup pad, 2 organism, 3 layer boards, 4 sampling bottle, 5A-frame, 6 leak detection subassembly, 61 installation storehouse, 62 vacuum pump, 63 fixed subassembly, 631 bracing piece, 632 connecting block, 633 solid fixed ring, 634 fixed block, 634 screw rod, 64 dog, 65 exhaust tube, 66 control valve, 67 manometer, 68 supporting shoe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one: in order to perform omission inspection before the whole gas sampler is collected, the gas analysis effectiveness is improved, please refer to fig. 1-2, the gas circuit omission inspection mechanism of the gas sampler in the embodiment comprises a supporting plate 1, an organic body 2 is fixedly installed at the upper end part of the supporting plate 1, a supporting plate 3 is fixedly connected to the outer side of the organic body 2, a sampling bottle 4 is placed on the supporting plate 3, a triangular bracket 5 is arranged at the lower end part of the supporting plate 1, and a omission inspection component 6 is arranged on the supporting plate 1 and the organic body 2.

The leak detection assembly 6 comprises a mounting bin 61, one end of which is fixedly connected with the lower end part of the supporting plate 1, a vacuum pump 62 is fixedly mounted on the inner side of the mounting bin 61, a supporting block 68 is fixedly connected on the outer side of the supporting plate 1, an exhaust pipe 65, one end of which penetrates through the supporting block 68, is communicated with the air inlet end of the vacuum pump 62, a perforation located on the outer side of the exhaust pipe 65 is formed in the outer side of the supporting block 68, the perforation specification is matched with the specification of the exhaust pipe 65, and the perforation specification is smaller than that of the stop block 64.

The exhaust pipe 65 is a hose, so that the exhaust pipe 65 can be dragged and blocked by the supporting blocks 68 through the stop blocks 64, the two supporting blocks 68 are distributed in a bilateral symmetry mode, the stop blocks 64 are fixedly connected to the outer side of the exhaust pipe 65, the control valve 66 is fixedly arranged on the outer side of the exhaust pipe 65, the pressure gauge 67 is fixedly arranged on the outer side of the exhaust pipe 65, and the fixing component 63 is arranged on the outer side of the machine body 2.

In this embodiment, after the suction tube 65 on the vacuum pump 62 is communicated with the collection port on the sampling bottle 4, the sampling bottle 4 is pumped to vacuum, and then whether the pressure gauge 67 is stable or not can be observed, and whether leakage occurs in the sampling bottle 4 or the joint of the sampling bottle 4 and the machine body 2 can be judged

Referring to fig. 3, the fixing assembly 63 in this embodiment includes two support rods 631 with one end fixedly connected to the outer side of the machine body 2, the number of the support rods 631 is two, the two support rods 631 are symmetrically distributed, the outer sides of the support rods 631 are slidably connected with two connecting blocks 632, one end of each connecting block 632 is fixedly connected with a fixing ring 633, and the outer sides of the fixing rings 633 are fixedly connected with fixing blocks 634.

The screw 635 is connected to the internal thread of the fixed block 634, the screw hole located on the outer side of the screw 635 is formed in the front fixed block 634, the screw hole is matched with the screw thread located on the outer side of the screw 635, the round hole located on the outer side of the screw 635 is formed in the rear fixed block 634, and the rotating screw 635 can drive the front fixed block 634 to be close to the rear fixed block 634 so as to drive the two fixing rings 633 to be close to clamp.

In this embodiment, the screw 635 is rotated to drive the two fixing rings 633 to clamp and seal the connection between the suction tube 65 and the collection bottle 4.

The working principle of the embodiment is as follows:

after the air inlet end of the extraction tube 65 is pulled to be communicated with the collecting end of the collecting bottle 4, the screw 635 can be rotated to drive the two fixing rings 633 to be close to the joint of the extraction tube 65 and the collecting bottle 4 for clamping and sealing, and then the collecting bottle 4 is pumped to be in vacuum, whether the pressure gauge 67 is stable or not can be observed, if the value of the pressure gauge 67 is not more than 0.1Mpa in 0.5h, the air tightness of the whole gas sampler is proved to be good, otherwise, the leakage is proved to be caused when the value of the pressure gauge 67 is more than 0.1Mpa, and the whole gas sampler needs to be overhauled to improve the gas analysis effectiveness.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a gas circuit of gas sampler leaks and examines mechanism, includes backup pad (1), its characterized in that: the automatic sampling device is characterized in that an organism (2) is fixedly arranged at the upper end part of the supporting plate (1), a supporting plate (3) is fixedly connected to the outer side of the organism (2), a sampling bottle (4) is placed on the supporting plate (3), a triangular bracket (5) is arranged at the lower end part of the supporting plate (1), and a leakage detection assembly (6) is arranged on the supporting plate (1) and the organism (2);

the leakage detection assembly (6) comprises an installation bin (61) with one end fixedly connected with the lower end of the supporting plate (1), a vacuum pump (62) is fixedly installed on the inner side of the installation bin (61), a supporting block (68) is fixedly connected on the outer side of the supporting plate (1), an exhaust pipe (65) with one end penetrating through the supporting block (68) is communicated with the air inlet end of the vacuum pump (62), a stop block (64) is fixedly connected on the outer side of the exhaust pipe (65), a control valve (66) is fixedly installed on the outer side of the exhaust pipe (65), a pressure gauge (67) is fixedly installed on the outer side of the exhaust pipe (65), and a fixing assembly (63) is arranged on the outer side of the machine body (2).

2. The gas circuit omission factor of a gas sampler according to claim 1, wherein: and a through hole positioned at the outer side of the exhaust pipe (65) is formed in the outer side of the supporting block (68), and the specification of the through hole is matched with that of the exhaust pipe (65).

3. The gas circuit omission factor of claim 2 wherein: the specification of the perforation is smaller than that of the stop block (64), and the exhaust pipe (65) is a hose.

4. The gas circuit omission factor of a gas sampler according to claim 1, wherein: the number of the supporting blocks (68) is two, and the two supporting blocks (68) are distributed in a bilateral symmetry mode.

5. The gas circuit omission factor of a gas sampler according to claim 1, wherein: the fixed subassembly (63) includes bracing piece (631) of the outside fixed connection of one end and organism (2), the outside sliding connection of bracing piece (631) has a quantity to be two connecting blocks (632), the one end fixedly connected with solid fixed ring (633) of connecting block (632), the outside fixedly connected with fixed block (634) of solid fixed ring (633), the inside threaded connection of fixed block (634) has screw rod (635).

6. The gas circuit omission factor of claim 5 wherein: the support rods (631) are U-shaped, the number of the support rods (631) is two, and the two support rods (631) are distributed in a bilateral symmetry mode.

7. The gas circuit omission factor of claim 5 wherein: screw holes positioned on the outer side of the screw rod (635) are formed in the fixing block (634) on the front side, the screw holes are matched with screw threads on the outer side of the screw rod (635), and round holes positioned on the outer side of the screw rod (635) are formed in the fixing block (634) on the rear side.