CN202255993U

CN202255993U - Sampling device aiming at normal-pressure gas

Info

Publication number: CN202255993U
Application number: CN2011203559300U
Authority: CN
Inventors: 陈颖; 张磊; 王宝辉; 杨鹤; 梁宇宁
Original assignee: Northeast Petroleum University
Current assignee: Northeast Petroleum University
Priority date: 2011-09-22
Filing date: 2011-09-22
Publication date: 2012-05-30
Anticipated expiration: 2021-09-22

Abstract

The utility model discloses a sampling device aiming at normal-pressure gas, and the problem that the normal-pressure gas is difficult to sample is solved. The device comprises an organic glass sealing box, a glass hopper, a vacuum pump, a plastic pipe and a hose; the organic glass sealing box is a rectangular parallelepiped; two holes are drilled on one side surface of the organic glass sealing box; the hose and the plastic pipe are respectively connected through the two holes; a spring clip is configured on the hose; a two-way valve is configured on the plastic pipe, wherein the tail end of the plastic pipe is connected with the glass hopper; the tail end of the hose is connected with the vacuum pump; the organic glass sealing box further comprises a gas collecting bag internally; an outlet of the gas collecting bag is connected with an inlet of the plastic pipe; and further, the connection is respectively hermetical connection. The device is applicable to the sampling of common gas, combustible and explosive gas and gas with a pungent smell under no pressure, and particularly, when a substance to be sampled is the combustible and explosive gas or the gas with the pungent smell, an operator is not necessary to approach the gas to sample the gas.

Description

A kind of sampler to atmosphere gas

Technical field

The utility model relates to a kind of gas sampling device, and concrete is the sampler to atmosphere gas.

Background technology

At present, exist the multiple gases sampling method, most methods only is confined to, and exists at sampling spot under the sampling condition of pressure to carry out, and utilizes the intrinsic pressure in sampling spot place, and the pressure differential of formation directly forces gas to be pressed in the sample apparatus.But under sampling spot and the extraneous situation that does not have pressure reduction, taking a sample, then not have good way, especially when institute's sample thief was inflammable and explosive or has the gas of penetrating odor, the personnel's that take a sample safety also can receive threat to a certain degree.

Summary of the invention

In order to overcome normal disadvantages of background technology; The utility model provides a kind of sampler of gas; This device solves the difficult problem of gas sample under the no pressure differential condition; Especially when getting material is inflammable and explosive or has the gas of penetrating odor, operating personnel's sampling can near.

For realizing the foregoing invention purpose; The technical scheme that the utility model adopts is: a kind of sampler to atmosphere gas, comprise organic glass capsulation case, glass funnel, vacuum pump, plastic tube and sebific duct, and said organic glass seal box is rectangular parallelepiped; On a side of organic glass seal box, be drilled with two holes; Connect sebific duct and plastic tube respectively through these two holes, and on sebific duct, dispose spring clamp, on plastic tube, dispose two-port valve; Wherein the tail end of plastic tube connects glass funnel, and the other end of sebific duct connects vacuum pump; Also comprise a gas production bag in the organic glass seal box of sampler, the outlet of this gas production bag is connected with the inlet of plastic tube, and the above connection is and is tightly connected.

The beneficial effect of the utility model: the application's device to atmosphere gas, the gas production bag is placed vacuum environment, the pressure official post atmosphere gas of utilizing the vacuum pump effect to produce enters into the gas production bag automatically, accomplishes sampling operation.Be applicable to common gases, the flammable explosive gas under the no pressure and have the gas sample of penetrating odor, also be applicable to normal pressure sampling situation such as the waste gas that evaporates in lease tank oil gas, the sewage wastewater and biogas.Utilize the sampling of the application's device can take dissimilar vacuum pumps under the different sampling environment; When wherein flammable explosive gas being taken a sample, should use hand-operating vacuum-pump, sampling can be adopted the electric power vacuum pump to common gases; Can guarantee like this effect that vacuumizes can guarantee handling safety again.

Description of drawings

Fig. 1 is the structural drawing of the utility model sampler.　

Among the figure: 1-organic glass seal box, 2-sebific duct, 3-plastic tube, 4-two-port valve, 5-glass funnel, 6-spring clamp, 7-gas production bag, 8-vacuum pump.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described:

By shown in Figure 1; The application to the sampler of atmosphere gas, comprise organic glass capsulation case 1, glass funnel 5, vacuum pump 8, plastic tube 3 and sebific duct 2, said organic glass seal box 1 is rectangular parallelepiped; On a side of organic glass seal box 1, be drilled with two holes; Connect sebific duct 2 and the plastic tube 3 that is about 30 centimetres respectively through these two holes, and on sebific duct 2, dispose spring clamp 6, configuration two-port valve 4 on plastic tube 3; Wherein the tail end of plastic tube 3 connects glass funnel 5, and the tail end of sebific duct 3 connects vacuum pump 8; Also comprise a gas production bag 7 in the organic glass seal box 1 of sampler, the outlet of this gas production bag 7 is connected with the inlet of plastic tube 3, and the above connection is and is tightly connected.

When sample tap is metal material, put the rubber sleeve that size is coincide in the upper edge of long neck funnel 5, the built-in magnet of rubber sleeve, magnet is adsorbed on the periphery of sample tap, makes the rubber sleeve outside be close to sample tap, prevents that too much air from getting into.

During sampling, be in the plane of the opening of glass funnel 5 and windward side on the same surface level after, place sampling.Open spring clamp 6 and two-port valve 4, start vacuum pump 8, organic glass seal box 1 is vacuumized; Because the pressure in the organic glass seal box 1 is lower than the pressure of sampled point, gaseous sample gets into gas production bag 7 through plastic tube 3 automatically, after gas production bag 7 is full of; Close spring clamp 6 and two-port valve 4, close vacuum pump 8, lay down the negative pressure in the organic glass case 1; Open organic glass case 1, with gas production bag 7 good seals, sampling finishes.Carry out numbering and sample record.

Claims

1. sampler to atmosphere gas; Comprise organic glass capsulation case, glass funnel, vacuum pump, plastic tube and sebific duct; It is characterized in that: said organic glass seal box is rectangular parallelepiped, on a side of organic glass seal box, is drilled with two holes, connects sebific duct and plastic tube respectively through these two holes; And on sebific duct, dispose spring clamp, on plastic tube, dispose two-port valve; Wherein the tail end of plastic tube connects glass funnel, and the tail end of sebific duct connects vacuum pump; Also comprise a gas production bag in the organic glass seal box of sampler, the outlet of this gas production bag is connected with the inlet of plastic tube, and the above connection is and is tightly connected.

2. the sampler to atmosphere gas according to claim 1 is characterized in that: when sample tap is metal material, on the upper edge of long neck funnel, be with rubber sleeve, and the built-in magnet of rubber sleeve, magnet is adsorbed on the periphery of sample tap.