CN209820884U - Sampling pretreatment system device considering VOC and NOX - Google Patents

Abstract

The utility model discloses a compromise VOC, NOX's sampling pretreatment system device, including sampling box and sample connection, the sample connection has been seted up to sampling box side surface, and sample connection one side is located the inside separation chamber that is equipped with of sampling box. The utility model discloses in, be equipped with the spiral fretwork pipe that the cross-section is the rectangle in the separation storehouse of sampling box, wash into the separation storehouse through the sample connection with the sample gas, the organic solvent of interpolation in the separation storehouse, can fuse into wherein VOC and particle impurity in the sample gas, and other composition (NOX) that are not soluble in organic solvent in the sample gas are through first drainage heating mechanism injection NOX storage jar, and simultaneously, the VOC who dissolves in organic solvent passes through the honeycomb duct and gets into the heated warehouses, control panel through the sampling box surface opens the heating pipe and heats, can be heated the VOC in the organic solvent and volatilize out, then through second drainage heating mechanism injection VOC storage jar, be convenient for carry out VOC NOX's concentration detection on next step.

Description

Sampling pretreatment system device considering VOC and NOX

Technical Field

The utility model relates to an environmental protection equipment technical field especially relates to a compromise VOC, NOX's sampling pretreatment system device.

Background

VOC is volatile organic compound, and VOC in the common meaning is command organic matter; but the definition in the environmental protection sense refers to an active class of volatile organic compounds, namely, volatile organic compounds which can cause harm. VOC, i.e., volatile organic compounds, have a great influence on human health, NOX is a generic name of nitrogen oxides, generally including NO and NO2, etc., and NOX in the atmosphere is derived from emissions of natural and artificial activities and is also a compound harmful to human health and the atmosphere.

In the operation of VOC and NOX's testing process, need carry out the sampling preliminary treatment to the sample gas, avoid the impurity damage detecting instrument in the sample gas, current preprocessing device is in the use, just gets rid of the particle impurity in the sample gas, can not separate VOC and NOX in the sample gas usually, and simultaneously, VOC and NOX's mixed sample gas is in the testing process, receives the temperature influence easily to influence subsequent testing result.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a sampling pretreatment system device taking VOC and NOX into account.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a compromise VOC, NOX's sampling pretreatment system device, includes sampling box and sample connection, the sample connection has been seted up to sampling box side surface, and sample connection one side is located the inside separation storehouse that is equipped with of sampling box, separation storehouse internally mounted has the fretwork pipe, and fretwork pipe one end passes through flange spare and sample connection intercommunication, separation storehouse top surface intercommunication has first air duct, and first air duct extends to the sampling box top surface, first air duct one end runs through and extends to sampling box internally connected with NOX storage jar, the separation storehouse below is equipped with the heating cabinet, and heating cabinet internally mounted has the heating pipe, heating cabinet one side intercommunication has the second air duct, and second air duct one end intercommunication has VOC storage jar, sampling box one side surface mounting's control panel.

Preferably, negative pressure pump, a water filtering cylinder, a heater and motorised valve are all installed on first air duct and second air duct surface, and the negative pressure pump, the water filtering cylinder, heater and the motorised valve of first air duct and second air duct respectively with sampling box one side surface mounting's control panel electric connection.

Preferably, a shunt pipe is connected to a surface of one side of the bottom of the separation bin in a through manner, one end of the shunt pipe is communicated with the heating bin, and a heating pipe of the heating bin is electrically connected with a control panel arranged on a surface of one side of the sampling box.

Preferably, the hollow pipe is of a spiral structure with a rectangular cross section, and the other end of the hollow pipe is sleeved with the sealing end.

Preferably, a picture peg is pegged graft to a water filtering section of thick bamboo top surface, and the equidistance welding of picture peg bottom has a plurality of annular boards to it has the foam-rubber cushion to bond between a plurality of annular boards, add between picture peg and the water filtering section of thick bamboo and be equipped with sealed the pad.

Preferably, the suction fan is arranged in the sampling port, and the suction fan is electrically connected with the control panel on one side surface of the sampling box.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, be equipped with the spiral fretwork pipe that the cross-section is the rectangle in the separation storehouse of sampling box, wash into the separation storehouse through the sample connection with the sample gas, the organic solvent of interpolation in the separation storehouse, can fuse into wherein VOC and particle impurity in the sample gas, and other composition (NOX) that are not soluble in organic solvent in the sample gas are through first drainage heating mechanism injection NOX storage jar, and simultaneously, the VOC who dissolves in organic solvent passes through the honeycomb duct and gets into the heated warehouses, open the heating pipe through the control panel on sampling box surface and heat, can be heated the VOC in the organic solvent and volatilize out, then through second drainage heating mechanism injection VOC storage jar, be convenient for carry out VOC NOX's concentration detection on next step, can effectively separate VOC and NOX in the sample gas, be convenient for detect, the suitability of sampling box has been improved.

2. The utility model discloses in, first air duct and second air duct surface all are equipped with the negative pressure pump, a water filtering section of thick bamboo, heater and motorised valve, control panel through the sampling box surface opens the negative pressure pump and can lead gas to in NOX storage jar VOC storage jar, the picture peg of pegging graft in the water filtering section of thick bamboo is equipped with a plurality of annular slabs, it has the foam-rubber cushion to bond between a plurality of annular slabs, can be with the moisture filtering in the gas, heater and the control panel electric connection on sampling box surface, start the temperature that the heater can improve gas through control panel, avoid the deviation of atmospheric pressure to cause follow-up detection to have the condition of floating to some extent, and then improve the efficiency of detection.

Drawings

Fig. 1 is a schematic structural diagram of a sampling pretreatment system device for both VOC and NOX according to the present invention;

FIG. 2 is a schematic diagram of a hollow-out tube structure of the sampling pretreatment system device for both VOC and NOX provided by the present invention;

fig. 3 is the utility model provides a take into account a water filtration section of thick bamboo schematic structure of VOC, NOX's sampling pretreatment system device.

Illustration of the drawings:

1. a sampling box; 2. separating the bins; 3. a heating chamber; 4. a sampling port; 5. a hollow pipe; 6. a first air duct; 7. a negative pressure pump; 8. a water filtration cartridge; 9. a heater; 10. an electrically operated valve; 11. an NOX storage tank; 12. heating a tube; 13. a second air duct; 14. a VOC storage tank; 15. a flange member; 16. sealing the end; 17. inserting plates; 18. an annular plate; 19. a spongy cushion.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a sampling pretreatment system device considering both VOC and NOX, including sampling box 1 and sampling port 4, sampling port 4 has been seted up on one side surface of sampling box 1, and sampling port 4 one side is located sampling box 1 inside and is equipped with separating bin 2, separating bin 2 internally mounted has fretwork pipe 5, and fretwork pipe 5 one end passes through flange spare 15 and sampling port 4 intercommunication, separating bin 2 top surface intercommunication has first air duct 6, and first air duct 6 extends to sampling box 1 top surface, first air duct 6 one end runs through and extends to sampling box 1 internally connected with NOX storage jar 11, separating bin 2 below is equipped with heating chamber 3, and heating chamber 3 internally mounted has heating pipe 12, heating chamber 3 one side intercommunication has second air duct 13, and second air duct 13 one end intercommunication has VOC storage jar 14, sampling box 1 one side surface mounting's control panel.

The surface of the first air duct 6 and the second air duct 13 are respectively provided with a negative pressure pump 7, a water filtering cylinder 8, a heater 9 and an electric valve 10, the negative pressure pump 7, the water filtering cylinder 8, the heater 9 and the electric valve 10 of the first air duct 6 and the second air duct 13 are respectively electrically connected with a control panel arranged on the surface of one side of the sampling box 1, the surface of one side of the bottom of the separation bin 2 is communicated with a shunt tube, one end of the shunt tube is communicated with the heating bin 3, a heating pipe 12 of the heating bin 3 is electrically connected with the control panel arranged on the surface of one side of the sampling box 1, VOC in an organic solvent can be discharged by heating, the hollow pipe 5 is of a spiral structure with a rectangular cross section, the other end of the hollow pipe 5 is sleeved with a sealing end 16, the dissolving of the VOC can be accelerated, the top surface of the water filtering cylinder 8 is inserted with an insert plate 17, the bottom end, add between picture peg 17 and the section of thick bamboo 8 of straining and be equipped with sealed the pad, can drive away the moisture in the gas, also can ensure the leakproofness of a section of thick bamboo 8 of straining, and 4 internally mounted of sampling port have the suction fan, and the control panel electric connection that suction fan and sampling box 1 side surface were equipped with is convenient for will wait to detect gas introduction sampling box 1.

The working principle is as follows: when the sampling box is used, the sampling box 1 is moved to a proper position, the power is switched on, when sampling is carried out, the spiral hollow pipe 5 with the rectangular cross section is arranged in the separation bin 2 of the sampling box 1, the sample gas is flushed into the separation bin 2 through the sampling port 4, the organic solvent added in the separation bin 2 can be used for melting VOC and particle impurities in the sample gas into the spiral hollow pipe, other components (NOX) which are insoluble in the organic solvent in the sample gas are injected into the NOX storage tank 11 through the first air duct 6, meanwhile, the VOC dissolved in the organic solvent enters the heating bin 3 through the guide pipe, the heating pipe 12 is started through the control panel on the surface of the sampling box 1 for heating, the VOC in the organic solvent can be heated and volatilized, then the VOC in the VOC storage tank 14 through the second air duct 13, the concentration detection of the VOC/NOX in the next step is convenient, the VOC and the NOX in the sample gas can be effectively separated, and the detection is convenient, the suitability of sampling box 1 has been improved, when needs are to gas dehumidification heating, first air duct 6 and 13 surfaces of second air duct all are equipped with negative pressure pump 7, water filtering section of thick bamboo 8, heater 9 and motorised valve 10, open negative pressure pump 7 through the control panel on sampling box 1 surface and can lead gas to in NOX storage jar 11/VOC storage jar 14, picture peg 17 of pegging graft in the water filtering section of thick bamboo 8 is equipped with a plurality of annular slabs 18, it has foam-rubber cushion 19 to bond between a plurality of annular slabs 18, can be with the moisture filtering in the gas, heater 9 and the control panel electric connection on sampling box 1 surface, start heater 9 through control panel and can improve gaseous temperature, avoid the deviation of atmospheric pressure to cause the condition that follow-up detection floated, and then improve the efficiency of detection.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The sampling pretreatment system device for VOC and NOx comprises a sampling box (1) and a sampling port (4), and is characterized in that the sampling port (4) is formed in one side surface of the sampling box (1), a separation bin (2) is arranged inside the sampling box (1) on one side of the sampling port (4), a hollow pipe (5) is installed inside the separation bin (2), one end of the hollow pipe (5) is communicated with the sampling port (4) through a flange piece (15), a first air duct (6) is communicated with the top surface of the separation bin (2), the first air duct (6) extends to the top surface of the sampling box (1), one end of the first air duct (6) penetrates through and extends to the inside of the sampling box (1) to be connected with a NOx storage tank (11), a heating bin (3) is arranged below the separation bin (2), and a heating pipe (12) is installed inside the heating bin (3), heating chamber (3) one side intercommunication has second air duct (13), and second air duct (13) one end intercommunication has VOC storage jar (14), sampling box (1) one side surface mounting's control panel.

2. The sampling pretreatment system device for both VOC and NOx according to claim 1, wherein the first air duct (6) and the second air duct (13) are respectively provided with a negative pressure pump (7), a water filtering cylinder (8), a heater (9) and an electric valve (10) on the surface, and the negative pressure pump (7), the water filtering cylinder (8), the heater (9) and the electric valve (10) of the first air duct (6) and the second air duct (13) are respectively electrically connected with a control panel arranged on one side surface of the sampling box (1).

3. The sampling pretreatment system device for VOC and NOx compatible according to claim 1, wherein a shunt tube is connected to a surface of one side of the bottom of the separation chamber (2), one end of the shunt tube is communicated with the heating chamber (3), and a heating pipe (12) of the heating chamber (3) is electrically connected with a control panel arranged on a surface of one side of the sampling box (1).

4. The VOC and NOx compatible sampling pretreatment system device according to claim 1, wherein the hollow pipe (5) is a spiral structure with a rectangular cross section, and the other end of the hollow pipe (5) is sleeved with a sealing end (16).

5. The sampling pretreatment system device considering both VOC and NOx as claimed in claim 2, wherein an insertion plate (17) is inserted into the top surface of the water filtering cylinder (8), a plurality of annular plates (18) are welded to the bottom end of the insertion plate (17) at equal intervals, a sponge mat (19) is bonded between the plurality of annular plates (18), and a sealing gasket is additionally arranged between the insertion plate (17) and the water filtering cylinder (8).

6. The sampling pretreatment system device for VOC and NOx compatible according to claim 1, wherein a suction fan is installed inside the sampling port (4), and the suction fan is electrically connected with a control panel arranged on one side surface of the sampling box (1).