CN2400796Y - Air monitoring unpowered dust-collecting device - Google Patents

Abstract

The utility model relates to an air-monitoring unpowered dust-collecting device, which is composed of a box body (1) and a dust-collecting cup (2). The utility model is characterized in that a support (3) of the dust-collecting cup is fixed inside the box body (1); a side plate (10) of the box is provided with air vents (4) and the upper part of each air vent (4) is provided with a protective cover. The measured dust-collecting quantity can show out the pollution status of total suspended particulate matters on the air of each point at the same time and can meet the requirement of air monitoring optimizing point distribution.

Description

Air monitering is unpowered adopts the dirt device

The utility model belongs to the air monitering device, particularly relates to the harvester of overall suspended pellet level of pollution in the reaction air.

Overall suspended pellet (TSP) is airborne major pollutants, be air monitering must survey project.But because the monitoring of overall suspended pellet must be sampled in working power, the price 7000-10000 unit of every sampling thief, so existing monitoring method can only be to carry out routine monitoring in limited some position, in layouting the monitoring of this high density point, large tracts of land scope, ambient air monitoring optimization can't use.The basic data that ambient air monitoring optimization is layouted is from the grid monitoring of layouting, and grid layout data monitored and the unnecessary actual concentrations of asking the reflection pollutant, a level of pollution that only needs to reflect each regional internal contamination thing of city satisfies the requirement that optimization is layouted.Because the applied research of unpowered sampling method, the level of pollution of sulphuric dioxide in the available sulfation rate reflection air is with the level of pollution of oxides of nitrogen in the TEA-NO2 reflection air.And depositing dust is measured in the existing air, connects the dirt sampling with the dustfall jar that opens wide, and it is too big to be subjected to external condition to disturb uncertain factor to influence, and can't be reflected in the level of pollution of overall suspended pellet in the air of each point position exactly.Therefore the unpowered sampling points distributing method of overall suspended pellet is blank always.

The purpose of this utility model provides the special-purpose unpowered dirt device of adopting of a kind of air monitering, it has simple in structure, easy to use, the overall suspended pellet pollution situation that can effectively reflect a position of respectively layouting can satisfy high density, the network monitoring requirement of layouting and carrying out pollution tendencies on a large scale.

The purpose of this utility model realizes by following principle scheme: under unified restrictive condition, promptly at one time in the scope, collect the dirt that in the air land naturally in the different location.Specifically be in the case that the circulation of air hole is arranged, to be placed with dust-accepting cup, enter airborne dirt in the case to collect by this hole, for flowing of air in the guard box can prevent that again DIFFERENT METEOROLOGICAL CONDITIONS and other factors to the influence of the dust fall in the dust-accepting cup in the case, can be provided with protective cover on the top of airflow through hole.

The utility model is made up of casing and dust-accepting cup, it is characterized in that at the box-shaped container internal fixation dust-accepting cup being installed props up and put frame, communicates with its outer atmospheric environment for making box cavity, has ventilating opening on the side plate of case, and ventilating opening is one or more; In order to prevent the influence of the outer convection current wind of case to dust-accepting cup, the rim of a cup of dust-accepting cup should be higher than the top of ventilating opening; For preventing that little mosquito from entering dust-accepting cup in the case, lives ventilating opening with the sand guard.Casing can be made into square or round.

The utility model is a kind of economical and practical unpowered dirt device of adopting, and airborne dirt enters in the dust-accepting cup by thermometer screen.On a plurality of position of layouting, can be provided with the utility model simultaneously, under unified restrictive condition, as be arranged on overhead contour, adopting in the dirt cup space in an identical size, collect the amount of the dirt that lands naturally in the air at one time in the section, the dust-accepting amount of being measured, the pollution situation of each point position can be reacted, the requirement that air monitering optimization is layouted can be satisfied with overall suspended pellet in the air in the section time.

Below in conjunction with accompanying drawing and with the accompanying drawing is that the utility model is described in further detail for embodiment:

Fig. 1 is a structural representation of the present utility model;

Figure is the vertical section structure synoptic diagram of the utility model embodiment;

Figure is the A-A cut-open view of Fig. 1;

Among the figure: the 1st, casing, the 2nd, dust-accepting cup, the 3rd, dust-accepting cup support, the 4th, ventilating opening, the 5th, louver, the 6th covers on the sand net, the 7th on the ventilating opening, case bottom plate, the 8th, chamber door, the 9th, box cover, the 10th, case side plate.

In Fig. 1, casing 1 is to be made of bottom plate 7, chamber door 8, loam cake 9, side plate 10.On bottom plate 7, be installed with dust-accepting cup and prop up and put frame 3, can be placed with dust-accepting cup 2 thereon; Casing 1 each 10 or side door 8 on have one or more bar shaped ventilating openings 4, the upper edge of each stripe shape ventilating opening 4 is provided with oblique louver 5, seals ventilating opening 4 with sand net 6 on the inwall of casing 1.

Dust-accepting cup 2 is placed in the case of blinds 5, and its rim of a cup should be higher than the upper edge of the ventilating opening 4 of side plate 10 the tops; Blinds can be designed to the gradient about 45 degree, and preferably the lower edge of its lower edge and ventilating opening 4 can be in same horizontal line, can guarantee air flowing in case, can prevent the rapid variation of the interior air-flow of case that weather such as wind, sleet bring again and influences and connect dirt.

In order to make weighing accurately of dust quantity, the cup that the polyvinyl chloride material that can select for use basis weight light (1.7-2.0 gram) and weight not influenced by air humidity is made is done dust-accepting cup.

During use, the utility model can be installed on the overhead level support or base of open-air difference, gather certain period the dirt that enters in (as being generally January) in the dust-accepting cup, use gravimetric determination, both can obtain the dust-accepting amount of every day with this impinger.

Claims (3)

1, the unpowered dirt device of adopting of a kind of air monitering, form by casing (1) and dust-accepting cup (2), it is characterized in that dust-accepting cup support (3) is fixedly mounted in the casing (1), on the side plate (10) of case, have ventilating opening (4), be provided with protective cover (5) on the top of each ventilating opening (4).

2, the unpowered dirt device of adopting of air monitering according to claim 1 is characterized in that being covered with sand net (6) on ventilating opening (4).

3, the unpowered dirt device of adopting according to claim 1 and 2 is characterized in that the rim of a cup of dust-accepting cup (2) should be higher than the upper edge of the ventilating opening (4) of side plate (10) the top.