CN210953551U

CN210953551U - Air sampler for waste gas detection

Info

Publication number: CN210953551U
Application number: CN201921860082.1U
Authority: CN
Inventors: 张建武
Original assignee: Guangdong Anyuan Dingsheng Detection Evaluation Co ltd
Current assignee: Guangdong Anyuan Dingsheng Detection Evaluation Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-07
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses an air sampler for exhaust-gas detection, include workstation, crossbeam and install the fan on the workstation and place the gas bomb on the crossbeam, the landing leg is all installed in the bottom face four corners of workstation, the bottom gas outlet of fan is connected with the outlet duct, the one end of outlet duct is passed through three-way valve and is connected the blast pipe, and the bottom of outlet duct is passed through connecting pipe, bottom even pipe and top even pipe and gas bomb intercommunication, still install the vacuum machine on the crossbeam of gas bomb one side, the one end intercommunication of passing through pipeline and connecting pipe of vacuum machine. This air sampler for exhaust-gas detection can be when the sampling, earlier through the vacuum machine with gas bomb, connecting pipe, bottom connecting pipe and the air escape in the top connecting pipe, remaining gas is discharged from the blast pipe in outlet duct and the fan to rethread three-way valve to guarantee the accuracy nature of air sampling, the accuracy of sampling is higher, and has avoided remaining gaseous interference.

Description

Air sampler for waste gas detection

Technical Field

The utility model belongs to the technical field of the empty gas detection surveys, concretely relates to air sampler for waste gas detection surveys.

Background

Air sampler for exhaust-gas detection is a device that can collect sampling area waste gas, and it can be convenient for carry waste gas to the laboratory, and then the researcher of being convenient for detects this waste gas.

However, when the existing air sampler for waste gas detection is used for sampling a waste gas area, residual gas in sampling equipment and a pipeline of the existing air sampler can enter a gas storage bottle together with the sampled gas and is mixed with the residual gas in the gas storage bottle, so that the sampled gas is not only the gas in the waste gas area, interference is caused to a detection result, and the accuracy of the adopted result is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air sampler for exhaust-gas detection to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an air sampler for waste gas detection comprises a workbench, a cross beam, a fan and a gas storage bottle, wherein the fan is installed on the workbench, the gas storage bottle is placed on the cross beam, supporting legs are installed at four corners of the bottom end face of the workbench, universal wheels are installed at the bottom ends of the supporting legs, the cross beam is arranged among the four groups of supporting legs and is welded and fixed with the supporting legs, the fan is installed in the middle of the upper end face of the workbench, a fixed outer pipe is fixedly arranged on the workbench on one side of the fan, an air inlet of the fan is communicated with the inner bottom end of the fixed outer pipe through an air suction pipe, an air inlet pipe is inserted into the fixed outer pipe, and the air inlet pipe;

the bottom gas outlet of fan is connected with the outlet duct, the one end of outlet duct is passed through the three-way valve and is connected the blast pipe, and the bottom of outlet duct is passed through connecting pipe, bottom connecting pipe and top connecting pipe and gas bomb intercommunication, still install the vacuum machine on the crossbeam of gas bomb one side, the one end intercommunication of passing through pipeline and connecting pipe of vacuum machine.

Preferably, the bottom end of the fixed outer pipe is sealed, the top end of the fixed outer pipe is provided with an inward inner edge, the air inlet pipe is matched in the inner edge, one end of the air inlet pipe in the fixed outer pipe is fixedly connected with the inner wall of the fixed outer pipe through a bearing fixedly sleeved on the outer side, and the air inlet pipe on the bearing is further sleeved with a sealing plug.

Preferably, the top end of the air inlet pipe is provided with internal threads, and the internal threads are connected with the pipeline at the bottom end of the ball plug in a sealing manner.

Preferably, the transmission device comprises a motor arranged on one side of the fixed outer pipe, a driving gear fixedly sleeved on a crankshaft of the motor and a driven gear fixedly sleeved on the air inlet pipe, and one end of the driving gear is meshed with the driven gear.

Preferably, the barometer is still installed to the one end of connecting pipe, bottom connecting pipe and top connecting pipe threaded connection, top connecting pipe fixed mounting is on the top of gas bomb, and one end still installs manual valve.

The utility model discloses a technological effect and advantage: according to the air sampler for detecting the waste gas, the three-way valve is installed at one end of the air outlet pipe and is communicated with the exhaust pipe, and the connecting pipe connected with the tail end of the air outlet pipe is communicated with the vacuum machine, so that air in the gas storage bottle, the connecting pipe, the bottom connecting pipe and the top connecting pipe can be exhausted through the vacuum machine at first during sampling, and residual gas in the air outlet pipe and the air blower is exhausted from the exhaust pipe through the three-way valve, so that the accuracy of air sampling is ensured, the sampling accuracy is higher, and the interference of the residual gas is avoided; the intake pipe of sampling connection passes through in the fixed outer tube of transmission and rotates in addition, and the intake pipe top is connected with the ball stopper to can be by motor work, circulate and adopt, and avoid the interference of large granule impurity by the ball stopper, with effect and the efficiency that improves the adoption.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a vertical cross-sectional view of the inside of the fixed outer tube of the present invention;

fig. 3 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

In the figure: 1 workbench, 2 supporting legs, 3 cross beams, 4 fans, 5 air suction pipes, 6 air inlet pipes, 7 ball plugs, 8 fixed outer pipes, 9 driven gears, 10 driving gears, 11 motors, 12 air outlet pipes, 13 three-way valves, 14 air outlet pipes, 15 vacuum machines, 16 air storage bottles, 17 bearings, 18 sealing plugs, 19 connecting pipes, 20 bottom connecting pipes, 21 top connecting pipes and 22 barometers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an air sampler for waste gas detection as shown in figures 1-3, including workstation 1, crossbeam 3 and install fan 4 on workstation 1 and place the gas bomb 16 on crossbeam 3, landing leg 2 is all installed in the bottom surface four corners of workstation 1, and the bottom of landing leg 2 installs the universal wheel, crossbeam 3 sets up between four group's landing leg 2 to with landing leg 2 welded fastening, fan 4 installs the upper end face intermediate position at workstation 1, fixedly is equipped with fixed outer tube 8 on workstation 1 of fan 4 one side, and the air inlet of fan 4 is linked together through breathing pipe 5 and the inside bottom of fixed outer tube 8, insert on fixed outer tube 8 and be equipped with intake pipe 6, intake pipe 6 rotates the setting in fixed outer tube 8 through transmission;

the bottom gas outlet of fan 4 is connected with

outlet duct

12, 13 door connection blast pipes 14 are passed through the three-way valve to the one end of outlet duct 12, and the bottom of outlet duct 12 is passed through connecting pipe 19, bottom connecting pipe 20 and top connecting pipe 21 and is communicated with gas bomb 16, still install vacuum machine 15 on the crossbeam 3 of gas bomb 16 one side, the one end intercommunication of passing through pipeline and connecting pipe 19 of vacuum machine 15.

Specifically, the bottom end of the fixed outer pipe 8 is sealed, the top end of the fixed outer pipe 8 is provided with an inward inner edge, the air inlet pipe 6 is matched with the inner edge, one end of the air inlet pipe 6 in the fixed outer pipe 8 is fixedly connected with the inner wall of the fixed outer pipe 8 through a bearing 17 fixedly sleeved on the outer side, so that the air inlet pipe 6 can be rotatably arranged in the fixed outer pipe 8 through the bearing 17, the air inlet pipe 6 on the bearing 17 is further sleeved with a sealing plug 18, and the air leakage of the fixed outer pipe 8 in the gas production process is avoided, and the efficiency of the gas entering from the air inlet pipe.

Specifically, the top of intake pipe 6 is equipped with the internal thread to the pipeline seal through the screw thread of inside setting and 7 bottoms of ball stopper links to each other, can adopt different filter efficiency's ball stopper 7 according to the environment demand of use, in order to avoid large granule impurity to the interference of gas of adopting.

Specifically, transmission is including installing motor 11, the driving gear 10 and the fixed driven gear 9 of fixed cover joint in intake pipe 6 of fixed bell and spigot joint on the bent axle of motor 11 of fixed outer tube 8 one side, the one end and the driven gear 9 meshing of driving gear 10 are connected to realize that motor 11 rotates, drive intake pipe 6 by the meshing between the gear and rotate.

Specifically, barometer 22 is still installed to the one end of connecting pipe 19, can judge whether the gaseous residual situation in the gas bomb 16 and the sampling gas in the gas bomb 16 have been full of according to the setting of barometer 22, bottom connecting pipe 20 and top connecting pipe 21 threaded connection, top connecting pipe 21 fixed mounting is on the top of gas bomb 16, and one end still installs manual valve, and after gaseous sampling, through the sealed to top connecting pipe 21, can dismantle top connecting pipe 21 and bottom connecting pipe 20, makes things convenient for the transfer of gas bomb 16 to conveniently carry out subsequent detection.

Specifically, when sampling air, firstly, after the workbench 1 is moved to a sampling area through the supporting legs 2, at the moment, the gas storage bottle 16 is hermetically connected with the bottom connecting pipe 20 through the top connecting pipe 21, at the moment, the three-way valve 13 is adjusted, the gas outlet pipe 12 is communicated with the gas exhaust pipe 14, the vacuum machine 15, the fan 4 and the motor 11 are started, the vacuum machine 15 performs vacuum-pumping treatment on the connecting pipe 19, the bottom connecting pipe 20, the top connecting pipe 21 and the gas storage bottle 16 below the three-way valve 13, the internal gas is pumped out, the vacuum machine 15 is closed after the completion of the pumping is judged according to the barometer 22, the fan 4 works to absorb the air near the ball plug 7 through the gas suction pipe 5, the fixed outer pipe 8 and the gas inlet 6, and simultaneously, the motor 11 rotates to drive the gas inlet pipe 6 and the ball plug 7 to rotate through the meshing of the gears so as to avoid pumping at, the fan 4 discharges the inhaled gas from the exhaust pipe 14 when beginning to accomplish the emission of residual gas in the fan 4 and the pipeline, about 30S is discharged, after making inside storage gas basically discharge and accomplish, adjust the three-way valve 13, communicate outlet duct 12 and connecting pipe 19, deposit to gathering the air in the gas bomb 16, and observe the gas collection situation by barometer 22, gather after accomplishing, close motor 11, fan 4 and the manual valve of top connecting pipe 21, unpack top connecting pipe 21 and bottom connecting pipe 20 apart, take away gas bomb 16 and carry out subsequent waste gas detection.

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 modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an air sampler for exhaust-gas detection, includes workstation (1), crossbeam (3) and install fan (4) on workstation (1) and place gas bomb (16) on crossbeam (3), its characterized in that: the four corners of the bottom end face of the workbench (1) are provided with the supporting legs (2), the bottom ends of the supporting legs (2) are provided with universal wheels, the cross beam (3) is arranged among the four groups of the supporting legs (2) and is fixedly welded with the supporting legs (2), the fan (4) is arranged in the middle of the upper end face of the workbench (1), a fixed outer tube (8) is fixedly arranged on the workbench (1) on one side of the fan (4), an air inlet of the fan (4) is communicated with the inner bottom end of the fixed outer tube (8) through an air suction tube (5), an air inlet tube (6) is inserted into the fixed outer tube (8), and the air inlet tube (6) is rotatably arranged in the fixed outer tube (8) through a transmission device;

the bottom gas outlet of fan (4) is connected with outlet duct (12), the one end of outlet duct (12) is passed through three-way valve (13) door and is connected blast pipe (14), and the bottom of outlet duct (12) is passed through connecting pipe (19), bottom connecting pipe (20) and top connecting pipe (21) and gas bomb (16) intercommunication, still install vacuum machine (15) on crossbeam (3) of gas bomb (16) one side, the one end intercommunication of passing through pipeline and connecting pipe (19) of vacuum machine (15).

2. The air sampler for exhaust gas detection according to claim 1, characterized in that: the bottom end of the fixed outer pipe (8) is sealed, the top end of the fixed outer pipe is provided with an inward inner edge, the air inlet pipe (6) is matched in the inner edge, one end of the air inlet pipe (6) in the fixed outer pipe (8) is fixedly connected with the inner wall of the fixed outer pipe (8) through a bearing (17) which is fixedly sleeved on the outer side, and the air inlet pipe (6) on the bearing (17) is further sleeved with a sealing plug (18).

3. The air sampler for exhaust gas detection according to claim 1, characterized in that: the top end of the air inlet pipe (6) is provided with internal threads and is connected with the pipeline at the bottom end of the ball plug (7) in a sealing way through the internally arranged threads.

4. The air sampler for exhaust gas detection according to claim 1, characterized in that: the transmission device comprises a motor (11) arranged on one side of the fixed outer pipe (8), a driving gear (10) fixedly sleeved on a crankshaft of the motor (11) and a driven gear (9) fixedly sleeved on the air inlet pipe (6), wherein one end of the driving gear (10) is meshed with the driven gear (9).

5. The air sampler for exhaust gas detection according to claim 1, characterized in that: the gas-pressure meter (22) is still installed to the one end of connecting pipe (19), bottom connecting pipe (20) and top connecting pipe (21) threaded connection, top connecting pipe (21) fixed mounting is on the top of gas bomb (16), and manual valve is still installed to one end.