CN104251809A - High-precision steady calibration device for tiny solid particle aerosol - Google Patents
High-precision steady calibration device for tiny solid particle aerosol Download PDFInfo
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- CN104251809A CN104251809A CN201410470124.6A CN201410470124A CN104251809A CN 104251809 A CN104251809 A CN 104251809A CN 201410470124 A CN201410470124 A CN 201410470124A CN 104251809 A CN104251809 A CN 104251809A
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Abstract
The invention provides a high precision steady calibration device for tiny solid particle aerosol. Solid particle aerosol produced by a particle quantitative atomizer controlled by a computer controller enters a mixing chamber, and is screened through a large particle screen to obtain the tiny solid particle aerosol; the tiny solid particle aerosol enters a balancing chamber through a mixing outlet; the tiny solid particle aerosol is subjected to temperature control stirring and dilution through an electric temperature control device, a stirring fan, a diluting nozzle and a balancing air outlet of the balancing chamber; the tiny solid particle aerosol enters a spherical calibration chamber through an output channel opening; a plurality of calibration connecting openings are formed in a horizontal line position in the middle of the calibration chamber, so as to be connected with relevant calibration instruments to achieve the detection and calibration functions; a calibration flow controller connected with the calibration chamber accurately adjust the steady flow and the concentration of the tiny solid particle aerosol in the chamber; gas exhausted through an exhausted gas treatment device is filtered through a particle filter and then is pumped and safely discharged through a negative pressure pump. The device has the benefits that the high precision steady calibration on the tiny solid particle aerosol can be implemented, so that special requirements in fields of environmental science, military medicine, inhalation toxicology, material science and the like are met.
Description
Technical field
The present invention relates to a kind of minute solid particles gasoloid high precision steady caliberating device.
Background technology
Current in environmental science, military medicine, suck toxicity, not only the fields such as material science need to utilize one can produce high-precision minute solid particles gasoloid but also can carry out steady test to it in a hurry, demarcate, assessment, the experimental provision of the scientific researches such as inspection, this experimental provision generally can produce high-precision minute solid particles aerosol generating equipment by one and one can the device that it carries out steady demarcation be formed, general solid particulate aerosol generation equipment mostly adopts air-flow directly to blow sample and produces solid particulate aerosol, concentration is uncontrollable, the particle diameter of the solid particle produced also is all not of uniform size, and sample is required harsh, must be non-sticky powder or dust otherwise just can not test to produce solid particulate aerosol etc., to the demarcation of solid particulate aerosol be also take sampling after demarcate with other testing equipments, pilot process is complicated also to be disturbed by outside contamination, the low data of precision are inaccurate, do not reach the requirement of contemporary scientific research, thus constrain the development of related science research.Therefore research and develop a dust atomization both can having carried out accurate concentration control to the powder of any character or dust produce minute solid particles gasoloid and the experimental provision that can carry out the demarcation of high precision steady to it become current in the urgent need to.
Summary of the invention
For solving the problem, the object of this invention is to provide a kind of minute solid particles gasoloid high precision steady caliberating device, high-precision minute solid particles gasoloid can be produced and can carry out the scientific researches such as the test of high precision steady, demarcation, assessment, inspection to it again, meet the specific demand of the field scientific researches such as environmental science, military medicine, suction toxicity, material science.
For achieving the above object, technical scheme of the present invention is to provide a kind of minute solid particles gasoloid high precision steady caliberating device, the quantitative concentrations solid particulate matter gasoloid that the particle ration atomizer controlled by computer control produces enters mixed cabin, screening through oversized particles screen cloth obtains the minute solid particles gasoloid mixed, balance cabin is entered again through mixed export, the electric temp control device in balance cabin, stir evenly fan, minute solid particles gasoloid is carried out temperature control stirring and is diluted to required concentration and flow by diluent nozzle and balance gas outlet, spherical demarcation cabin is entered by exporting road junction, the horizontal line position, middle part demarcating cabin has several demarcation interface and can access associated calibration instrument to realize detection and calibrating function, demarcate the aerocolloidal steady flow of minute solid particles in the calibrational capacity controller accurate adjustment demarcation cabin of cabin connection and concentration, exhaust gas treatment device aspirates safety dumping by negative pressure pump after the gas of discharge is drawn into particulate filter inner filtration.
The invention has the beneficial effects as follows: invent and a kind ofly not only the dust atomization that the powder of any character or dust carry out accurate concentration control can be produced to high-precision minute solid particles gasoloid but also can carry out steady test to it, demarcate, assessment, the experimental provision of the scientific researches such as inspection, the aerocolloidal steady flow of minute solid particles in cabin and concentration can be demarcated by accurate adjustment, directly in demarcation cabin, carry out test calibration, process is simply noiseless, data are accurate, environmental science can be met, military medicine, suck toxicity, the specific demand in the fields such as material science.
Accompanying drawing explanation
Accompanying drawing is the schematic diagram of structure of the present invention.
In figure:
1, computer control 2, calibrate gas port 3, High Accuracy Solid granule density detector 4, associated calibration instrument
5, flow controller 6, device for drying and filtering 7, pressure steel cylinder 8, high-purity inertia source of the gas 9, temperature control pipeline
10, electric temp control device 11, dilution nozzle 12, output road junction 13, interior demarcation gland bonnet 14, Circular Pipe
15, outer demarcation gland bonnet 16, demarcation interface 17, micro-negative pressure pump 18, calibrational capacity controller
19, with no pressurely pipe 20, particulate filter 21, exhaust gas treatment device 22, negative pressure pump 23, urceolus is taken out
24, inner core 25, balance gas outlet 26, stir evenly fan 27, bulky grain screen cloth 28, slappe
29, motor 30, particle ration atomizer 31, data line 32, holding tank 33, mixed cabin is bounced
34, spraynozzle 35, mixed export 36, balance cabin 37, demarcation cabin.
Embodiment
By reference to the accompanying drawings and embodiment the present invention is illustrated.
As shown in drawings, the invention provides a kind of minute solid particles gasoloid high precision steady caliberating device, by mixed cabin 33, balance cabin 36 and demarcation cabin 37 form, mixed cabin 33 is the seal hatchs of the smooth cleaning easy to clean of inside surface made by resistant material, overall cylindrical, the upper and lower of mixed cabin 33 is cone shape structure, the lower sidewalls of seal hatch has osculum and inwardly introduces spout atomizer 34 upwards, the certain density minute solid particles condensation aerosol that particle ration atomizer 30 is formed is entered in mixed cabin 33 by atomizer 34 and upwards spreads, in mixed cabin 33, the fixing bulky grain screen cloth 27 of an edge seal is installed in middle and upper part, be equipped with in the middle of bulky grain screen cloth 27 and bounce motor 29 and slappe 28, bulky grain screen cloth 27 can be bounced according to different frequency, larger particles under being screened by bulky grain screen cloth 27 shakes off, the conical base of the bottom of mixed cabin 33 has an osculum and is connected to holding tank 32, collect at any time and hold the bulky grain solid particulate matter settled down, the upper cone top of mixed cabin 33 has a mixed export 35 and is connected with balance cabin 36, balance cabin 36 is the seal hatchs of the smooth cleaning easy to clean of inside surface made by resistant material, global design is columnar structured, electric temp control device 10 is all equipped with at the cylinder sidewall of a week and top, bottom balance cabin 36, eccentric side has mixed export 35 to be communicated with mixed cabin 33, vertically on top sidewall just right with mixed export 35 in balance cabin 36 be equipped with one and stir evenly fan 26, stir evenly above fan 26 and balance gas outlet 25 is housed, balance top, cabin 36 opposite side has output road junction 12 and is communicated with demarcation cabin 37, be positioned at output road junction 12 and High Accuracy Solid granule density detector 3 is housed below, at High Accuracy Solid granule density detector 3, diluent nozzle 11 is housed below, demarcate the seal hatch that cabin 37 is the smooth cleanings easy to clean of inside surface made by insulation resistant material, global design is the spheroidal structure with standard volume, the bottommost opening in whole spherical demarcation cabin 37 and balance cabin 36 are tightly connected by exporting road junction 12, have in the top in whole spherical demarcation cabin 37 and calibrate gas port 2 and flow controller 5 is tightly connected, enclose horizontal line position to have multiple demarcation interface 16 and access High Accuracy Solid granule density detector 3 or the aerocolloidal associated calibration instrument 4 of minute solid particles at the middle part one in whole spherical demarcation cabin 37 respectively and be used for realizing detecting and calibrating function, demarcate the Circular Pipe 14 that interface 16 is the inner hollow made by hard resistant material, the middle part one that Circular Pipe 14 center section is sealably coupled to spherical demarcation cabin 37 is enclosed on multiple circular holes that horizontal line position has, the part of Circular Pipe 14 outside spherical demarcation cabin 37 is equipped with outer demarcation gland bonnet 15, can be tightly connected when opening High Accuracy Solid granule density detector 3 or the aerocolloidal associated calibration instrument 4 of minute solid particles is used for realizing detecting and calibrating function, Circular Pipe 14 is equipped with interior demarcation gland bonnet 13 in the part of inside, spherical demarcation cabin 37, it can close to ensure to demarcate cabin 37 homeostasis and sealing when connecting High Accuracy Solid granule density detector 3 or minute solid particles aerocolloidal associated calibration instrument 4, high-purity inertia source of the gas 8 is made up of pressure steel cylinder 7 and device for drying and filtering 6, the inert gas that high-purity inertia source of the gas 8 provides is divided into by temperature control pipeline 9 and flow controller 5 diluent nozzle 11 that two tunnels supply particle ration atomizer 30 and balance bottom, cabin 36 respectively to carry out being atomized and diluting, the inert gas provided due to high-purity inertia source of the gas 8 has stable physicochemical property and adds flow controller 5 by accurate flow control and temperature control pipeline 9, therefore, it is possible to ensure that the inert gas dimension criteria that the diluent nozzle 11 being input to particle ration atomizer 30 and balance bottom, cabin 36 carries out being atomized and diluting is constant, high-purity inertia source of the gas 8 supplies quantitative steady inert gas to particle ration atomizer 30, the solid particulate aerosol producing quantitative concentrations enters into mixed cabin 33 by atomizer 34, the minute solid particles gasoloid mixed is obtained after the screening of the bulky grain screen cloth 27 on mixed cabin 33 top, balance cabin 36 is directly sent to via the mixed export 35 of conical top directly over mixed cabin 33, balance cabin 36 can ensure to balance the environment that cabin 36 maintains a constant temperature all the time built with electric temp control device 10, stir evenly fan 26, the minute solid particles gasoloid that mixing cabin 33 is sent into is carried out temperature control stirring evenly and be diluted to required concentration and flow by diluent nozzle 11 and balance gas outlet 25, spherical demarcation cabin 37 is entered by the output road junction 12 balancing top, cabin 36, the High Accuracy Solid granule density detector 3 using the demarcation interface 16 on spherical demarcation cabin 37 to access or associated calibration instrument 4 carry out detecting and demarcating, the parts that calibrational capacity controller 18 is made up of micro-negative pressure pump 17 and flow controller 5, what trace negative pressure pump 17 input end was connected in series that a flow controller 5 is connected to top, spherical demarcation cabin 37 calibrates gas port 2, the output terminal of trace negative pressure pump 17 is connected to one of them input end taking out pipe 19 with no pressure in exhaust gas treatment device 21, experimental calibration request trace negative pressure pump 17 and flow controller 5 synergy regulating and controlling can demarcate marked gas flow in cabin 37, the calibrational capacity controller 18 that top, spherical demarcation cabin 37 is communicated with is experimental needs accurate adjustment to demarcate the aerocolloidal flow of minute solid particles in cabin 37 and concentration, exhaust gas treatment device 21 arranged side by side with no pressurely takes out pipe 19 by two, the parts that particulate filter 20 and negative pressure pump 22 combine, wherein with no pressurely take out the airflow pipeline that pipe 19 is inside and outside double-barrel structures, the opening of urceolus one end is as the entrance taking out pipe 19 diluents with no pressure, the other end is sealably coupled to negative pressure pump 22 as the output terminal taking out pipe 19 with no pressure, inner core 24 is fixed on the concentric axis of urceolus 23, it is inner that one end is deeply communicated to urceolus 23, the other end attenuates and extends urceolus 23 as the input end taking out pipe 19 with no pressure, two input ends one taking out pipe 19 with no pressure arranged side by side are connected to micro-negative pressure pump 17 output terminal, another is connected to balance gas outlet 25, negative pressure pump 22 is connected to after two output terminals taking out pipe 19 with no pressure arranged side by side are pooled to a particulate filter 20, with no pressurely take out going deep into plug bush structure and can ensureing in exhaust pipe both without any pressure interference balance cabin 36 with demarcate cabin 37 of pipe 19, again can in time by balance gas outlet 25 with calibrate the gas that gas port 2 discharges and be drawn into particulate filter 20 inner filtration completely, then by the suction safety dumping of negative pressure pump 22, computer control 1 by data line 31 control flow check amount controller 5, particle ration atomizer 30, balance cabin 36 electric temp control device 10 and stir evenly fan 26, High Accuracy Solid granule density detector 3, associated calibration instrument 4 and negative pressure pump 22.
embodiment:
When using a kind of minute solid particles gasoloid high precision steady caliberating device that the powder of any character or dust are carried out to the dust atomization generation minute solid particles gasoloid of accurate concentration control and can carry out the scientific experiment of high precision steady demarcation to it, first high-purity inertia source of the gas 8 is got out, pressure steel cylinder 7 wherein will fill experiment inert gas, the powder of experiment or dust are loaded particle ration atomizer 30 li, clean out the bulky grain screen cloth 27 of mixed cabin 33 li, device for drying and filtering 6 in high-purity inertia source of the gas 8 and the particulate filter 20 of exhaust gas treatment device 21, empty the holding tank 32 collected and hold the bulky grain solid particulate matter settled down, experimental needs connect High Accuracy Solid granule density detector 3 or the aerocolloidal associated calibration instrument 4 of minute solid particles of experiment on the demarcation interface 16 demarcating cabin 37, connect the power supply of computer control 1, open high-purity inertia source of the gas 8 to start to provide inert gas, inert gas is divided into by temperature control pipeline 9 and flow controller 5 diluent nozzle 11 that two tunnels supply particle ration atomizer 30 and balance bottom, cabin 36 respectively to carry out being atomized and diluting, the inert gas provided due to high-purity inertia source of the gas 8 has stable physicochemical property and adds flow controller 5 by accurate flow control and temperature control pipeline 9, therefore, it is possible to ensure that the inert gas dimension criteria that the diluent nozzle 11 being input to particle ration atomizer 30 and balance bottom, cabin 36 carries out being atomized and diluting is constant, high-purity inertia source of the gas 8 supplies quantitative steady inert gas to particle ration atomizer 30, experimentally need the concentration and the flow that are obtained needs by computer control 1 adjust flux controller 5, the certain density minute solid particles condensation aerosol that powder in particle ration atomizer 30 or dust atomization are formed is entered in mixed cabin 33 by atomizer 34 and upwards spreads, experimentally require that the frequency that motor 29 and slappe 28 are bounced in setting bounces bulky grain screen cloth 27, larger particles under being screened by bulky grain screen cloth 27 shakes off, the conical base of the bottom of mixed cabin 33 has an osculum and is connected to, the bulky grain solid particulate matter settled down is collected into holding tank 32 li at any time, all the other minute solid particles gasoloids mixed obtained after the screening of the bulky grain screen cloth 27 on mixed cabin 33 top are directly sent to balance cabin 36 via the mixed export 35 of conical top directly over mixed cabin 33, the minute solid particles gasoloid that diluent nozzle 11 pairs of mixed cabins 33 that the inert gas that high-purity inertia source of the gas 8 provides arrives balance bottom, cabin 36 are sent into dilutes, concentration and the flow of needs is obtained by computer control 1 adjust flux controller 5, electric temp control device 10 in balance cabin 36 is controlled to ensure that balance cabin 36 maintains the environment of a constant temperature all the time by computer control 1, stir evenly fan 26 under the control of computer control 1, the minute solid particles gasoloid experimentally required constant temperature dilution to be stirred, spherical demarcation cabin 37 is entered by the output road junction 12 balancing top, cabin 36, gas in balance cabin 36 enters exhaust gas treatment device 21 after balance gas outlet 25 is discharged, controlled the suction safety dumping of negative pressure pump 22 by computer control 1 after particulate filter 20 filters, period can use High Accuracy Solid granule density detector 3 to check the concentration of solid particles balanced in cabin 36 at any time, adjust at any time when not meeting requirement of experiment, open the High Accuracy Solid granule density detector 3 of experiment or the power supply of the aerocolloidal associated calibration instrument 4 of minute solid particles of demarcation interface 16 access on spherical demarcation cabin 37, the micro-negative pressure pump 17 of experimental calibration request regulating and controlling calibrational capacity controller 18 and flow controller 5, just regulating and controlling can demarcate marked gas flow in cabin 37, also with regard to the aerocolloidal flow of minute solid particles in energy accurate adjustment demarcation cabin 37 and concentration, carry out minute solid particles gasoloid high precision steady and demarcate and detect, the gas calibrating gas port 2 discharge demarcating cabin 37 controls the suction safety dumping of negative pressure pump 22 after particulate filter 20 filters by computer control 1, after the scientific experiment using minute solid particles gasoloid high precision steady caliberating device to carry out the demarcation of high precision steady completes, to shut down computer the power supply of controller 1, close high-purity inertia source of the gas 8 and stop air feed, the result after demarcating and detecting will further be analysed scientifically and study.
Claims (8)
1. a minute solid particles gasoloid high precision steady caliberating device, it is characterized in that: by mixed cabin (33), balance cabin (36) and demarcation cabin (37) composition, high-purity inertia source of the gas (8) supplies quantitative steady inert gas to particle ration atomizer (30), the solid particulate aerosol producing quantitative concentrations enters into mixed cabin (33) by atomizer (34), the minute solid particles gasoloid mixed is obtained after the screening of the bulky grain screen cloth (27) on mixed cabin (33) top, balance cabin (36) is directly sent to via the mixed export (35) of conical top directly over mixed cabin (33), balance cabin (36) can ensure to balance the environment that cabin (36) maintains a constant temperature all the time built with electric temp control device (10), stir evenly fan (26), diluent nozzle (11) and balance gas outlet (25) will mix the minute solid particles gasoloid sent in cabin (33), and to carry out temperature control stirring even and be diluted to required concentration and flow, spherical demarcation cabin (37) is entered by the output road junction (12) balancing cabin (36) top, enclose horizontal line position to have multiple demarcation interface (16) and High Accuracy Solid granule density detector (3) or the aerocolloidal associated calibration instrument (4) of minute solid particles can be accessed at the middle part one of spherical demarcation cabin (37) be respectively used for realizing detecting and calibrating function, the calibrational capacity controller (18) that spherical demarcation cabin (37) top is communicated with is experimental needs accurate adjustment to demarcate the aerocolloidal flow of minute solid particles in cabin (37) and concentration, the exhaust gas treatment device (21) being connected to calibrational capacity controller (18) and balance gas outlet (25) back can ensure in exhaust pipe both without any pressure interference balance cabin (36) and demarcation cabin (37), again can in time by balance gas outlet (25) with calibrate the gas that gas port (2) discharges and be drawn into particulate filter (20) inner filtration in time completely, then by negative pressure pump (22) suction safety dumping, computer control (1) is by data line (31) control flow check amount controller (5), particle ration atomizer (30), balance the electric temp control device (10) in cabin (36) and stir evenly fan (26), High Accuracy Solid granule density detector (2), associated calibration instrument (4) and negative pressure pump (22).
2. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: described mixed cabin (33) is the seal hatch of the smooth cleaning easy to clean of inside surface made by resistant material, overall cylindrical, the upper and lower of mixed cabin (33) is cone shape structure, the lower sidewalls of seal hatch has osculum and inwardly introduces spout atomizer upwards (34), the certain density minute solid particles condensation aerosol that particle ration atomizer (30) is formed is entered in mixed cabin (33) by atomizer (34) and upwards spreads, the fixing bulky grain screen cloth (27) of an edge seal is installed in mixed cabin (33) interior middle and upper part, be equipped with in the middle of bulky grain screen cloth (27) and bounce motor (29) and slappe (28), bulky grain screen cloth (27) can be bounced according to different frequency, larger particles under being screened by bulky grain screen cloth (27) shakes off, the conical base of the bottom of mixed cabin (33) has an osculum and is connected to holding tank (33), collect at any time and hold the bulky grain solid particulate matter settled down, the upper cone top of mixed cabin (33) has a mixed export (35) and is connected with balance cabin (36).
3. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: described balance cabin (36) is the seal hatch of the smooth cleaning easy to clean of inside surface made by resistant material, global design is columnar structured, electric temp control device (10) is all equipped with at the cylinder sidewall of a week and top, eccentric side, balance cabin (36) bottom has mixed export (35) to be communicated with mixed cabin (33), vertically on top sidewall just right with mixed export (35) in balance cabin (36) be equipped with one and stir evenly fan (26), stir evenly fan (26) top and balance gas outlet (25) is housed, balance cabin (36) top opposite side has output road junction (12) and is communicated with demarcation cabin (37), be positioned at output road junction (12) and High Accuracy Solid granule density detector (3) is housed below, at High Accuracy Solid granule density detector (3), diluent nozzle (11) is housed below.
4. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: described demarcation cabin (37) is the seal hatch of the smooth cleaning easy to clean of inside surface made by insulation resistant material, global design is the spheroidal structure with standard volume, the bottommost opening of whole spherical demarcation cabin (37) and balance cabin (36) are tightly connected by exporting road junction (12), have in the top of whole spherical demarcation cabin (37) and calibrate gas port (2) and flow controller (5) is tightly connected, enclose horizontal line position to have multiple demarcation interface (16) and access High Accuracy Solid granule density detector (3) or the aerocolloidal associated calibration instrument (4) of minute solid particles at the middle part one of whole spherical demarcation cabin (37) respectively and be used for realizing detecting and calibrating function.
5. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: described demarcation interface (16) is the Circular Pipe (14) of the inner hollow made by hard resistant material, the middle part one that Circular Pipe (14) center section is sealably coupled to spherical demarcation cabin (37) is enclosed on multiple circular holes that horizontal line position has, Circular Pipe (14) is equipped with outer demarcation gland bonnet (15) in spherical demarcation cabin (37) part outward, can be tightly connected when opening High Accuracy Solid granule density detector (3) or the aerocolloidal associated calibration instrument (4) of minute solid particles is used for realizing detecting and calibrating function, Circular Pipe (14) is equipped with interior demarcation gland bonnet (13) in the part that spherical demarcation cabin (37) is inner, it can close to ensure to demarcate cabin (37) homeostasis and sealing when connecting High Accuracy Solid granule density detector (3) or minute solid particles aerocolloidal associated calibration instrument (4).
6. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: described high-purity inertia source of the gas (8) is made up of pressure steel cylinder (7) and device for drying and filtering (6), the inert gas that high-purity inertia source of the gas (8) provides by temperature control pipeline (9) and flow controller (5) be divided into two tunnels supply respectively particle ration atomizer (30) and balance cabin (36) bottom diluent nozzle (11) carry out being atomized and diluting, the inert gas provided due to high-purity inertia source of the gas (8) has stable physicochemical property and adds flow controller (5) by accurate flow control and temperature control pipeline (9), therefore, it is possible to ensure that the inert gas dimension criteria that the diluent nozzle (11) being input to particle ration atomizer (30) and balance cabin (36) bottom carries out being atomized and diluting is constant.
7. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: the parts that described calibrational capacity controller (18) is made up of micro-negative pressure pump (17) and flow controller (5), what trace negative pressure pump (17) input end was connected in series that a flow controller (5) is connected to spherical demarcation cabin (37) top calibrates gas port (2), the output terminal of trace negative pressure pump (17) is connected to that one of them in exhaust gas treatment device (21) is with no pressure takes out pipe (19) input end, experimental calibration request trace negative pressure pump (17) and flow controller (5) synergy can marked gas flows in regulating and controlling demarcation cabin (37).
8. a kind of minute solid particles gasoloid high precision steady caliberating device according to claim 1, it is characterized in that: described exhaust gas treatment device (21) arranged side by side with no pressurely takes out pipe (19) by two, the parts that particulate filter (20) and negative pressure pump (22) combine, wherein with no pressurely take out the airflow pipeline that pipe (19) is an inside and outside double-barrel structure, the opening of urceolus one end is as the entrance taking out pipe (19) diluents with no pressure, the other end is sealably coupled to negative pressure pump (22) as the output terminal taking out pipe (19) with no pressure, inner core (24) is fixed on the concentric axis of urceolus (23), it is inner that one end is deeply communicated to urceolus (23), the other end attenuates and extends urceolus (23) as the input end taking out pipe (19) with no pressure, two input ends one taking out pipe (19) with no pressure arranged side by side are connected to micro-negative pressure pump (17) output terminal, another is connected to balance gas outlet (25), negative pressure pump (22) is connected to after two output terminals taking out pipe (19) with no pressure arranged side by side are pooled to a particulate filter (20), with no pressurely take out going deep into plug bush structure and can ensureing in exhaust pipe both without any pressure interference balance cabin (36) and demarcation cabin (37) of pipe (19), again can in time by balance gas outlet (25) with calibrate the gas that gas port (2) discharges and be drawn into particulate filter (20) inner filtration completely, then by the suction safety dumping of negative pressure pump (22).
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