A kind of pneumatic pump and gas phase chromatotube road coupling arrangement
Technical field
The utility model relates to a kind of pneumatic pump and gas phase chromatotube road coupling arrangement.
Background technology
Certain steel enterprise laboratory, adopts pneumatic pump to supply compressed air to gas chromatography and uses.Due to outlet of air pump and gas chromatography white steel conduit aperture is inconsistent cannot direct air feed, so adopt rubber hose transition to connect at present, easily gas leakage and air feed is unstable, the accuracy of impact analysis sample.In addition, laboratory usually needs multiple stage gas chromatography to work simultaneously, and a pneumatic pump cannot meet the demands.
Summary of the invention
For overcoming prior art defect, the technical matters that the utility model solves is to provide a kind of pneumatic pump and gas phase chromatotube road coupling arrangement, structure is simple, easy to operate, stable connection, an available pneumatic pump gives multiple stage gas chromatography air feed simultaneously, solve gas chromatography because air feed is unstable the accuracy problem of impact analysis sample, safe and reliable.
In order to achieve the above object, the utility model realizes by the following technical solutions:
A kind of pneumatic pump and gas phase chromatotube road coupling arrangement, comprise valve body, pipe plug, connector, white steel pipe, it is characterized in that, described valve body is provided with a connecting filament end of thread mated with outlet of air pump end spherical valve, and five threaded pipe adapters can be threaded togather with pipe plug or connector; Described connector and the white steel-pipe welding of gas chromatography link together.
Described connecting filament end of thread and the center of five pipe adapters are provided with the mutually through through hole identical with pneumatic pump and gas chromatography white steel pipe aperture.
Compared with prior art, the beneficial effects of the utility model are: structure is simple, easy to operate, stable connection, an available pneumatic pump gives multiple stage gas chromatography air feed simultaneously, solve gas chromatography because air feed is unstable the accuracy problem of impact analysis sample, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation front view of the present utility model;
Fig. 2 is structural representation vertical view of the present utility model.
In figure: the white steel pipe of 1-valve body 11-connecting filament end of thread 12-pipe adapter 13-through hole 2-pipe plug 3-connector 4-
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, Fig. 2, the utility model relates to a kind of pneumatic pump and gas phase chromatotube road coupling arrangement, comprise valve body 1, pipe plug 2, connector 3, white steel pipe 4, described valve body 1 is provided with a connecting filament end of thread mated with outlet of air pump end spherical valve 11, five threaded pipe adapters 12 and can be threaded togather with pipe plug 2 or connector 3; Described connector 3 is welded together with the white steel pipe 4 of gas chromatography.
Described connecting filament end of thread 11 and the center of five pipe adapters 12 are provided with the mutually through through hole 13 identical with pneumatic pump and gas chromatography white steel pipe 4 aperture.
During work, the connecting filament end of thread 11 on valve body 1 is connected with the spherical valve of outlet of air pump end, and five on valve body 1 threaded pipe adapters 12 can give gas chromatography air feed by joint 3 as required in succession, also can take over stifled 2 and shut, prevent gas leakage.