CN102053019A - Method for performance testing and detection of natural ventilation filter device - Google Patents

Method for performance testing and detection of natural ventilation filter device Download PDF

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CN102053019A
CN102053019A CN201010524336XA CN201010524336A CN102053019A CN 102053019 A CN102053019 A CN 102053019A CN 201010524336X A CN201010524336X A CN 201010524336XA CN 201010524336 A CN201010524336 A CN 201010524336A CN 102053019 A CN102053019 A CN 102053019A
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gas
test unit
straight tube
gas inflow
section
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陈妙生
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Abstract

The invention relates to a method for performance testing and detection of a natural ventilation filter device. The method is characterized in that a testing apparatus is used for detecting the ventilation rate and the pressure difference, the particle size of the captured dust and the dust removing capability, the dehumidification efficiency and the rain-proof performance of the natural ventilation filter device through a low-speed wind tunnel testing apparatus; an exhaust fan is used as the power source for inducing air or feeding air; the inflowing air is filtered and purified after being rectified when the air flows into the testing apparatus at the rated pressure; the ventilation rate and the pressure difference before and behind the natural ventilation filter device, the particle size of the captured dust and the dust removing capability, the sprayed mist water and a rainwater spraying device are tested to obtain the corresponding data; and the particle size of the dust captured by the device is tested by a digital differential pressure gauge, a digital dust concentration testing instrument, an optical microscope and a humidity meter to observe whether or not water remains in a transparent organic tube. The method is simple, reasonable and effective.

Description

Performance test of natural ventilation filtration unit and detection method
Technical field
A kind of natural ventilation filtration unit of the present invention performance test and detection method, relate to be used for natural ventilation filter plant that the covil construction indoor-outdoor air pollutes, to testing apparatus and the detection method of ventilation with the pressure loss, capture dust size size and dust collection capacity, dehumidification rate, water-resistant performance, be used for building energy conservation and environmental protection field thereby satisfy product.
Background technology
The IAQ (indoor air quality) of covil construction and the health of human body have closely related.Because the widespread use of Building Decoration Material and chemical adhesive, make the sealing property of buildings improve, also caused the deficiency of room ventilation ventilation volume, allow indoor muddy air be difficult for discharging, room air pollution, comprising formaldehyde, benzene, radon, ammonia and TVOC (volatility chemical organic compounds matter), the outdoor air that contains wetly, dust, noise, these pollutants have increased the weight of the harm to health, cause respiratory inflammation, tuberculosis, angiocardiopathy to increase.If do not open a window, in the time of ventilation in the holding chamber often, realization low-carbon energy-saving, must reduce the healthy residence of indoor-outdoor air pollutant effect again, this ventilation equipment and systems technology also do not occur, and more do not have the technical standard of its corresponding testing apparatus and detection method and relevant industries; Therefore, be necessary a kind of natural ventilation filtration unit that is used for covil construction newly developed, and performance test of natural ventilation filtration unit and detection method, the indoor and outdoor ventilation system that allows buildings realize 24 hours, realize the building energy conservation low-carbon emission, purpose is to allow the air pollution of indoor and outdoor and disease away from health.
Summary of the invention
Purpose of the present invention is for providing a kind of simple in structure complete again, can implement performance test of natural ventilation filtration unit and detection method than being easier to, after the test data that obtains by experiment, outgoing examination criteria and the accurate side of the normalized measuring technology face that can make product have had necessity and reliable technique according to having solved above-mentioned technical matters.
Performance test of described natural ventilation filtration unit and detection method, it is characterized in that: adopt each four different performance test apparatus and detection method, can be corresponding to the circular bore of difference, be used for offering the natural ventilation filtration unit (being designated hereinafter simply as " test unit α ") that is provided with on the ventilating opening, wherein comprise non-power air exchanger (invention patent mandate number: 2006100242398) at the buildings in general body of wall, unpowered air intake filter (utility model patent grant number: 2008201581295), (the application for a patent for invention number: 2009100296103 of combined type dedusting sound-insulating air suction device, 200910246150X, 2010101352781,2010101549520); Be suitable for book shape and easy building masonry wall, skin uses on glass curtain wall or the outside push-pull type closing type window, the natural ventilation filtration unit (being designated hereinafter simply as " test unit β ") that the square or circular bore ventilating opening of being offered is provided with is comprising window type natural ventilation filtration unit (utility model patent grant number: 2010201261523, application for a patent for invention number: 200910259912X, 2010100046420,2010101182371,2010101587452,201010190396X, 201010236248X, the ventilation of each test unit 2010102950392) and pressure differential, capture dust size size and dust collection capacity, dehumidification rate, every index test of water-resistant performance; The one, be used for test unit α low-speed wind tunnel testing apparatus (1), test unit β low-speed wind tunnel testing apparatus (41) and the detection method of ventilation and pressure differential; The 2nd, be used to capture the test unit β testing apparatus (51) and the detection method of test unit alpha test equipment (11), capture dust size size and the dust collection capacity of dust size size and dust collection capacity; The 3rd, be used for the test unit alpha test equipment (21) of dehumidification rate, the test unit β testing apparatus (61) and the detection method of dehumidification rate; The 4th, be used for the test unit alpha test equipment (71) of water-resistant performance, the test unit β testing apparatus (91) and the detection method of water-resistant performance; The described test unit α low-speed wind tunnel testing apparatus (1) that is used for ventilation and pressure differential, be to flow out section straight tube (5) by gas inflow filter (3j), gas rectifying device (4), gas inflow segment straight tube (3), test unit α (2), gas, Frequency Adjustable axial flow blower (6), digital differential manometer (7) are formed; The described test unit β low-speed wind tunnel testing apparatus (41) that is used for ventilation and pressure differential is made up of gas inflow filter (41j), gas rectifying device (44), gas inflow segment straight tube (43), gas inflow segment reducer union (48a), test unit β (42), the reducer union (48b) of two gas outflow sections, three gas outflow section three-way pipe drive connectors (49), a gas outflow section straight tube (45), Frequency Adjustable axial flow blower (46), digital differential manometers (47); The described test unit alpha test equipment (11) that is used to capture dust size size and dust collection capacity, be by gas inflow filter (13e), be arranged on the dust storage device (18) in the reducer union (11a), gas inflow segment straight tube (13), test unit α (12), gas flow out section straight tube (14), capture the big dingus of dust size (15), Frequency Adjustable axial flow blower (16), digital dust concentration tester (17a, 17b) is formed; The described test unit β testing apparatus (51) that is used to capture dust size size and dust collection capacity, be by gas inflow filter (53e), be arranged on the dust storage device (58) in the reducer union (51a), gas inflow segment straight tube (53), gas inflow segment reducer union (59a), test unit β (52), two gases flow out section reducer union (59b), gas flows out section three-way pipe drive connector (60), gas flows out section straight tube (54), capture the big dingus of dust size (55), Frequency Adjustable axial flow blower (56), digital dust concentration tester (57a, 57b) form; The described test unit alpha test equipment (21) that is used for dehumidification rate is by gas inflow filter (23e), gas inflow segment straight tube (23), test unit α (22), gas flows out section straight tube (24), Frequency Adjustable axial flow blower (26), and the spray spraying system is formed; The described test unit β testing apparatus (61) that is used for dehumidification rate, be by gas inflow filter (63e), reducer union (61a), gas inflow segment straight tube (63), gas inflow segment reducer union (68a), test unit β (62), gas flow out section reducer union (68b), gas flows out section three-way pipe drive connector (69), gas flows out section straight tube (64), Frequency Adjustable axial flow blower (66), and the spray spraying system is formed; The described test unit alpha test equipment (71) that is used for water-resistant performance is made up of the test unit α (80) in organic glass transparent tube (72), rain cover (73), laboratory body of wall (74), the body of wall, anemoscope test point (75), pressure fan (76), pressure fan support (77), rainwater spray equipment (78), connection water pipe (79), rhone (81); The described test unit β testing apparatus (91) that is used for water-resistant performance is made up of the test unit β (100) in organic glass transparent tube (92), rainproof grid (93), laboratory body of wall (94), glass window framework (101), the glass window framework, anemoscope test point (95), pressure fan (96), pressure fan support (97), rainwater spray equipment (98), connection water pipe (99), rhone (102).
The described interior gas inflow filter (3j) of test unit α low-speed wind tunnel testing apparatus (1) that is used for ventilation and pressure differential, it is characterized in that: include screen pack case (3d), nonwoven fabrics filter cloth (3b), 10 order metal screens (3c), screen pack plate washer (3a), the bore that gas inflow filter (3j) is set is DN200, and is same size with bore that gas inflow segment straight tube (3), gas rectifying device (4), test unit α (2), gas flow out a section straight tube (4), Frequency Adjustable axial flow blower (6) and interconnects; The described interior gas inflow filter (43j) of test unit β low-speed wind tunnel testing apparatus (41) that is used for ventilation and pressure differential, its external diameter is made as DN200, and with gas inflow segment straight tube (43), gas rectifying device (44), the inflow entrance of gas inflow segment reducer union (48a), test unit β (42), flow export external diameter in three gas outflow section three-way pipe drive connectors (49), gas flows out section straight tube (45), the bore of Frequency Adjustable axial flow blower (46) is same size, except that two gases flow out the external diameter difference of section reducer unions (48b) and interconnect; And the length of establishing a gas inflow segment straight tube (3,43) is more than 5 times or 5 times of bore DN200, and length is made as 1m or more than the 1m; The length that gas flows out section straight tube (5,45) is more than 10 times or 10 times of bore DN200, and length is made as 2m or more than the 2m; Moreover the bore that gas flows out section straight tube (5,45) also can be connected by the different bores of other reducer union with Frequency Adjustable axial flow blower (6,46); In the testing apparatus use, screen pack case (3d, 43d) plays the effect of coming off that prevents nonwoven fabrics filter cloth (3b, 43b), 10 order metal screens (3c, 43c), and is fixed with 4 fastening bolts (3k, 43k); The screen pack layer thickness that is used for gas filtration is 1/5 distance of gas inflow filter (3j, 43j) bore DN200, thickness is made as 40mm, the screen pack plate washer of 4 equal distribution (3a, 43a) is for fixing and maintenance screen pack layer thickness, screen pack plate washer (3a, 43a) is located at inflow point's deep inside of gas inflow filter (3j, 43j), the degree of depth is made as 40mm, and the length and the wide size of screen pack plate washer (3a, 43a) is set to 15 * 10mm, thickness is made as between 4～6mm.
Described gas rectifying device (4,44), it is characterized in that: contain flange liner plate (4a, 44a), 10 order gas rectification filter screens (4b, 44b), gas rectification screen cloth (4c, 44c), the external diameter that gas rectifying device (4,44) is set is identical with the outer diameter D N200 of gas inflow segment straight tube (3,43), and the aperture of gas rectification screen cloth (4c, 44c) belongs to even arrangement states for Φ 9mm.The exit position that gas inflow filter (3j, 43j) is set is more than 5 times or 5 times of gas inflow filter (3j, 43j) outer diameter D N200 to the distance of gas rectifying device (4,44), and length is made as 1m or more than the 1m; Gas rectifying device (4,44) is more than 10 times or 10 times of gas rectifying device (4,44) outer diameter D N200 to distance between the test unit α (2), and length is made as 2m or more than the 2m; It is that gas flows out section more than 10 times or 10 times of straight tube (5) outer diameter D N to the distance of Frequency Adjustable axial flow blower (6) that the gas of test unit α (2) flows out section straight tube (5), and length is made as 2m or more than the 2m; And between the porch of gas rectifying device (44) and test unit β (42), except that being provided with gas inflow segment straight tube (43j), also be provided with gas inflow segment reducer union (48a); In two exits of test unit β (42), be respectively equipped with gas and flow out section reducer union (48b) and three gases outflow section three-way pipe drive connectors (49), flow out section straight tube (45) with gas again and be connected; It is that gas flows out section more than 10 times or 10 times of straight tube (45) outer diameter D N200 to the distance of Frequency Adjustable axial flow blower (46) that the gas of test unit β (42) flows out section straight tube (45), and length is made as 2m or more than the 2m;
By being used for the test unit α low-speed wind tunnel testing apparatus (1) of ventilation and pressure differential, the detection method of test unit β low-speed wind tunnel testing apparatus (41), it is characterized in that: with Frequency Adjustable axial flow blower (6,46) as test unit α (2), the air inducing power of test unit β (42) low-speed wind tunnel testing apparatus, when air quantity is with the wind speed between 2.5～5.0m/s, by Frequency Adjustable axial flow blower (6,46) power is introduced into gas inflow filter (3j, in the time of 43j), via screen pack case (3d, 43d), 10 order metal screen (3c, 43c), nonwoven fabrics filter cloth (3b, enter gas rectifying device (4 after filtration 43b) and the purified treatment, 44) and gas inflow segment straight tube (3,43), through gas rectifying device (4,44) gas that flows into is carried out rectified action, gas is in laminar condition, by gas inflow segment straight tube (3,43), gas flows out section straight tube (5,45) in the institute respectively the setting inflow segment anemoscope (3e, 43e), flow out section anemoscope (5a, 45a) test unit α (2) is flowed into and the wind speed of eluting gas when testing, can pass through gas inflow segment straight tube (3 again, 43) and gas flow out a section straight tube (5,45) in the institute respectively the setting inflow segment piezometric tube (3f, 43f) with inflow segment Pitot tube (3g, 43g), flow out section piezometric tube (5c, 45c) with an outflow section Pitot tube (5d, the digital differential manometer (7 that 45d) all is connected, 47), the concrete data that flow through ventilation before and after the test unit α (2) and pressure differential relation are tested are at digital differential manometer (7,47) show on, when digital differential manometer (7, when 47) being shown as the data value of 9.8Pa, at Frequency Adjustable axial flow blower (6,46) leading portion, gas flows out section straight tube (5,45) go up the air volume meter (5b that is provided with, 45b) can demonstrate the data value of ventilation; Can certainly calculate the ventilation of test unit α (2) and the relation value of pressure differential by the specified flow velocity of Frequency Adjustable axial flow blower (6,46) introducing, gas inflow segment straight tube (3,43) and the outside dimension of gas outflow section straight tube (5,45) or the area of section of airduct; Flow into for test unit β (42) equally and the wind speed of eluting gas when testing, can flow out section reducer union (48b) and gas by gas inflow segment reducer union (48a) and gas again and flow out in the section three-way pipe drive connector (49) institute the inflow segment piezometric tube (43ff) and the inflow segment Pitot tube (43g) of setting respectively, flow out section piezometric tube (45cc) and flow out the digital differential manometer (47) that section Pitot tube (45d) all is connected, the concrete data that flow through ventilation before and after the test unit β (42) and pressure differential relation are tested show on digital differential manometer (47), when digital differential manometer (47) is shown as the data value of 9.8Pa, flows out section three-way pipe drive connector (49) at gas and go up the data value that the air volume meter (45bb) that is provided with can demonstrate ventilation; Secondly for test unit β (42) is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolts (42a) with clamping plate (42b) and two, one end test unit β is fixed between gas inflow segment straight tube (43) and the gas inflow segment reducer union (48a) with clamping plate (42b) to be furnished with on the flange face, an other end test unit β fixes (42b) on the framework of test unit β (42) with clamping plate, is fixed with adjustable bolt (42a) by two cover test unit β.
Described test unit β testing apparatus (51) and the detection method that is used to capture test unit α (11), capture dust size size and the dust collection capacity of dust size size and dust collection capacity, it is characterized in that:, include gas inflow filter (13e, 53e), reducer union (11a, 51a), gas inflow segment straight tube (13,53), inflow segment anemoscope (13g, 53g), flow into sampling pipe (13h, 53h) and flow into sampling flexible pipe (13i, 53i) with a kind of interior gas inflow segment of testing apparatus that captures dust size size and dust collection capacity; The outer diameter D N200 of gas inflow filter (13e, 53e) and gas inflow segment straight tube (13,53) is set, the outside dimension and the equal in length of gas inflow filter (13e, 53e); The screen pack layer thickness that is used for filtering gas is 1/5 distance of gas inflow filter (13e, 53e) outer diameter D N200, and thickness is made as 40mm; The inflow segment outside diameter d of reducer union (11a, 51a) is half of gas inflow filter (13e, 53e) outer diameter D N200, the outflow section external diameter of reducer union (11a, 51a) is identical with the outer diameter D N200 of gas inflow filter (13e, 53e), the inflow segment of reducer union (11a, 51a) is connected with gas inflow segment straight tube (13,53) with the outflow section of gas inflow filter (13e, 53e), reducer union (11a, 51a), and the waist shape angle of reducer union (11a, 51a) should be less than or equal to 20 °; Flow into sampling pipe (13h, 53h) and be connected to digital dust concentration tester (17a, 57a) with flexible pipe (13i, 53i) with the inflow sampling, flow into sampling pipe (13h, 53h) and be arranged on 2 times of distances test unit α (12) front, that be equivalent to gas inflow segment straight tube (13) outer diameter D N200, its length is made as 400mm; The length that gas inflow segment straight tube (13) is set is the distance more than 10 times or 10 times of its outer diameter D N200, and length is made as 2m or more than the 2m; Equally at the leading portion position of test unit β (52), be provided with gas inflow segment reducer union (59a), be provided with in the gas inflow segment reducer union (59a) and flow into sampling pipe (53hh) and flow into sampling with flexible pipe 53i and be connected to digital dust concentration tester (57a), flow into sampling pipe (53hh) and be arranged on 1 times of distance test unit β (52) front, that be equivalent to gas inflow segment straight tube (53) outer diameter D N200, its length is made as 200mm.
Described dust storage device (18,58), it is characterized in that: include and regulate with butterfly valve (18a, 58a), dust discharges straight tube (18a, 58a), inflow segment dust pipe (18b, 58b), inflow segment dust pipe (18b, 58b) be connected to dust and discharge straight tube (13f, 53f) end portion, and run through reducer union (11a, middle part 51a), dust discharges straight tube (13f, 53f) upper part connects adjusting butterfly valve (18a, 58a) with dust storage device (18,58), inflow segment dust pipe (18b is set, 58b) center, exit and adjusting butterfly valve (18a, height distance 58a), be equivalent to gas inflow filter (13e, 53e) 10 of outer diameter D N200 times or distance more than 10 times, its length are made as 2m or more than the 2m.
Described gas flows out section straight tube (14,54), it is characterized in that: its external diameter and gas inflow segment straight tube (13,53) outer diameter D N200 is identical, and be provided with and flow out a section anemoscope (14a, 54a), flow out sampling pipe (14c, 54c) with outflow sampling flexible pipe (14d, 54d) be connected to digital dust concentration tester (17a, 17b, 57a, 57b), air volume meter (14b, 54b), air volume meter (14b, 54b) with outflow sampling pipe (14c, 54c) be arranged on test unit α (12) back, be equivalent to gas and flow out section straight tube (14,54) 2 of outer diameter D N200 times of distances, its length is made as 400mm; What see from the cross section is, the insertion of both sensors differs 90 ° position, it is 5 times or the above 5 times of distances of outer diameter D N200 that the length that gas flows out section straight tube (14,54) is set, and its length is made as 1m or more than the 1m, and is connected with Frequency Adjustable axial flow blower (16,56); For the leading portion position of test unit β (52), be provided with gas inflow segment reducer union (59a), be provided with in the gas inflow segment reducer union (59a) and flow into sampling pipe (53h) and flow into sampling with flexible pipe (53i) and be connected to digital dust concentration tester (57a, 57b), flow into sampling pipe (53h) and be arranged on 1 times of distance test unit β (52) front, that be equivalent to gas inflow segment straight tube (53) outer diameter D N200, its length is made as 200mm.
Described capture dust size device (15,55) is characterized in that: include spacer flanger (15a, 55a), glassware lining (15b, 55b), 20 order metal screens (15c, 55c), glassware (15d, 55d); Glassware (15d is set, external diameter 55d) is that gas flows out section straight tube (14,54) half-size scale of outer diameter D N200, diameter is made as φ 100mm, and at glassware (15d, internal diameter 55d) and the inboard thin layer of coating grease, glassware lining (15b, 55b) be attached to spacer flanger (15a, 55a), glassware lining (15b, have 4 scallop holes and 4 reinforcements that can ventilate 55b), the width of reinforcement is made as 4～5mm, glassware lining (15b, 55b) be provided with intermediate groove and can put into glassware (15d, 55d), the internal diameter of intermediate groove and the degree of depth are greater than glassware (15d, between external diameter 55d) and the height 2～3mm, glassware (15d, opening part 55d) attaches 20 order metal screen (15c, 55c) be used for protection, re-use steel wire 20 order metal screen (15c, 55c) be fixed on glassware lining (15b, on reinforcement 55b), to prevent glassware (15d, 55d) coming off in process of the test; The distance that captures between dust size device (15,55) and test unit α (12) and the test unit β (52) is set, and is the distance more than 10 times or 10 times of gas outflow section straight tube (14,54) outer diameter D N200, and its length is made as 2m or more than the 2m.
By the detection method that captures dust size size and dust collection capacity test unit α (11), capture dust size size and dust collection capacity test unit β (51) be, with the air inducing power of Frequency Adjustable axial flow blower (16,56) as testing apparatus, leading portion, gas in Frequency Adjustable axial flow blower (16,56) flow out in the section straight tube (14,54) air volume meter (14b, 54b) are set; When air quantity is introduced into gas inflow filter (13e with the wind speed of 2.5～5m/s, in the time of 53e), via screen pack case (13d, 53d), 10 order metal screen (13c, 53c), nonwoven fabrics filter cloth (13b, enter the gas stream section of going into after filtration 53b) and the purified treatment, flow into reducer union (11a then, 51a), via reducer union (11a, the dust storage device (18 that top 51a) is provided with, 58) Nei dust, open and regulate with butterfly valve (18a, 58a), dust is by the freely falling body form, flow into dust and discharge straight tube (18b, 58b) with inflow segment dust pipe (13f, 53f) exit, dust and gas combine together, through reducer union (11a, 51a) to the diffusion of gas, gas is in laminar condition, by gas inflow segment straight tube (13,53) or gas inflow segment reducer union (59a), and gas flows out section reducer union (59b) or gas flows out section straight tube (14,54) the inflow segment anemoscope (13g that is provided with respectively in, 53g), flow out section anemoscope (14a, 54a), air volume meter (14b, 54b) to wind speed and the air quantity and the test of gas, can pass through gas inflow segment straight tube (13 again, 53) and gas flow out a section straight tube (14,54) the inflow sampling pipe (13h that is provided with respectively in, 53h) with inflow sampling flexible pipe (13i, 53i), flow out sampling pipe (14c, 54c) with outflow sampling flexible pipe (14d, 54d) all be connected separately digital dust concentration tester (17a, 17b, 57a, 57b), the concrete data before and after the dust collection capacity of flow through test unit α (12) and test unit β (52) at digital dust concentration tester (17a, 17b, 57a, show 57b), be provided with (14 via flowing out section at gas, 54) dust size capturing device (15,55) Nei the glassware (15d that scribbles greasy films, 55d), the dust size that traps outflow, amplify more than 600 times by microscope, be printed on the picture as the size foundation with PM10 (10 μ m) size-spacing mark, can measure the detection method of the dust size size that traps outflow; Secondly for test unit β (52) is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolts (52a) with clamping plate (52b) and two, one end test unit β is fixed between gas inflow segment straight tube (53) and the gas inflow segment reducer union (59a) with clamping plate (52b) to be furnished with on the flange face, an other end test unit β fixes (52b) on the framework of test unit β (52) with clamping plate, is fixed with adjustable bolt (52a) by two cover test unit β.
The described test unit α (21) that is used for dehumidification rate, the test unit β (61) and the detection method of dehumidification rate, it is characterized in that: with the gas inflow segment in a kind of testing apparatus of dehumidification rate, include gas inflow filter (23e, 63e), reducer union (21a), gas inflow segment straight tube (23,63), inflow segment anemoscope (23h, 63h), inflow segment hygronom (23f, 63f), gas inflow segment straight tube (23 is set, 63) external diameter is DN200, inflow segment drainpipe (23i, 63i) insert test unit α (22) front, be equivalent to gas inflow segment straight tube (23,63) distance of diameter outer diameter D N200 is with inflow segment drain stop valve (23j, 63j) be connected; And test unit β (62) front, except that many gas inflow segments reducer union (58a), with test unit α (22) front identical configuration is arranged, for test unit β (62) front, inflow segment drainpipe (23i, 63i) is inserted in the gas inflow segment reducer union (58a), a half-distance that is equivalent to gas inflow segment straight tube (23,63) diameter outer diameter D N200 is 100mm, and is connected with inflow segment drain stop valve (23j, 63j).
Described gas inflow filter (21a, 61a), it is characterized in that: include screen pack case (23d, 63d), nonwoven fabrics filter cloth (23b, 63b), 10 order metal screens (23c, 63c), screen pack plate washer (23a, 63a) composition, outer diameter D N200 and gas inflow segment straight tube (23,63), test unit α (22), gas that gas inflow filter (21a, 61a) is set flow out section straight tube (24,64), and the external diameter of scalable axial flow blower (26,66) is identical; Screen pack case (23d, 63d) plays a part protection nonwoven fabrics filter cloth (23b, 63b), 10 order metal screens (23c, 63c); The screen pack layer depth that is used for filtering gas is 1/5 distance of gas inflow filter (21a, 61a) outer diameter D N200, and length is made as 40mm; The screen pack plate washer (23a, 63a) that 4 equal distribution are set is for fixing and maintenance screen pack layer depth; At gas inflow filter (21a, horizontal central line 61a), be equivalent to gas inflow filter (21a, 61a) spray nozzle (21g is set on the half-distance of outer diameter D N200,61g), nozzle (21g, 61g) direction is towards the inflow point of test unit α (22) and test unit β (62), by spray water pipe (29a, 29b), spray water stop valve is connected and forms the spray spraying plant, again by spray water pipe (29a, 29b) with spray water pump (27a, 27b), header tank (28a, interconnect 28b), header tank (28a, the height ball-cock assembly of control automatically is set 28b), by header tank (28a, 28b) be external in water inlet pipe (30a, 30b) with the water inlet stop valve, and form the spray spraying system.
Described gas flows out section straight tube (24,64), it is characterized in that: include and flow out section anemoscope (24a, 64a), flow out section hygronom (24c, 64c), air volume meter (24b, 64b), the length that gas outflow section straight tube (24,64) is set is the distance more than 10 times or 10 times of outer diameter D N200, its length is made as 2m or more than the 2m, and be connected with Frequency Adjustable axle axial flow blower (26,66), distance test unit α (22) back, that be equivalent to gas outflow section straight tube (24,64) outer diameter D N200 is 200mm, and is connected with an outflow section drain stop valve; And the set outflow section drainpipe (64dd) in test unit β (62) back be inserted in gas flow out section reducer union (68b), to be equivalent to the half-distance that gas flows out section straight tube (64) outer diameter D N200 be 100mm, and be connected with inflow segment drain stop valve (64ee).
By dehumidification rate test unit α (21), dehumidification rate test unit β (61) testing apparatus and detection method, with the air inducing power of Frequency Adjustable axial flow blower (26,66), at the leading portion of Frequency Adjustable axial flow blower (26,66), to be equivalent to the distance that gas flows out section straight tube (24,64) outer diameter D N200 be that air volume meter (24b, 64b) is set in the 200mm as testing apparatus; When air quantity is introduced into gas inflow filter (21a with 5m/s or with the wind speed of 10m/s, in the time of 61a), via screen pack case (23d, 63d), 10 order metal screen (23c, 63c), nonwoven fabrics filter cloth (23b, when after filtration 63b) and the purified treatment, start the spray spraying system, enter into the reducer union (21a of gas inflow segment by the spray fan-shaped vaporific moisture that spraying system sprayed, 61a), via reducer union (21a, the diffusion of gas 61a), gas is in laminar condition, by gas inflow segment straight tube (23,63), gas flows out section straight tube (24,64) or gas flow out the inflow segment anemoscope (23h that is provided with respectively in the section reducer union (68b), 63h), flow out section anemoscope (24a, 64a) to the test of eluting gas wind speed, again by gas inflow segment straight tube (23,63) and gas flow out a section straight tube (24,64) or gas flow out the inflow segment hygronom (23f that is provided with respectively in the section reducer union (68b), 63f) with an outflow section hygronom (24c, 64c) to the test and the comparison of the humidity percentage that contains fan-shaped vaporific moisture in the gas, this detection method can draw the actual percentage of test unit α (22) and test unit β (62) dehumidification rate; Moreover, for test unit β (62) is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolts (62a) with clamping plate (62b) and two, one end test unit β is fixed between gas inflow segment straight tube (63) and the gas inflow segment reducer union (68a) with clamping plate (62b) to be furnished with on the flange face, an other end test unit β fixes (62b) on the framework of test unit β (62) with clamping plate, is fixed with adjustable bolt (62a) by two cover test unit β.
Described test unit alpha test equipment (71), the water-resistant performance test unit β testing apparatus (91) that is used for water-resistant performance, it is characterized in that: organic glass transparent tube (72) in a kind of water-resistant performance testing apparatus that on body of wall, is provided with and rain cover (73), interconnect with the test unit α (80) that is arranged in the body of wall, the length of organic glass transparent tube (72) is made as 300mm, level height h 1All being arranged on apart from ground is smaller or equal to 1.5m; The distance that described anemoscope test point (75) and pressure fan (76), anemoscope test point (75) are arranged on laboratory body of wall (74) outside is between the 1.0m, and with the distance L of pressure fan (76) exit end face 2Between 0.05m, pressure fan (76) is to be supported by pressure fan support (77).Described rainwater spray equipment (78) be connected water pipe (79), be arranged on the upper position of laboratory body of wall (74), and the centre distance h between the rain cover (73) 2Be arranged on more than or equal to 1.2m, rainwater spray equipment (78) be connected water pipe (79) and be connected; And rhone (81) be located at rain cover (73) under, its length * wide * depth dimensions is made as 1.0m * 1.0m * 0.5m; Interconnect for the test unit β (100) that is arranged in the glass window framework (101), the length of organic glass transparent tube (92) is 300mm, level height h 11All being arranged on apart from ground is smaller or equal to 1.5m; Described anemoscope test point (95) and pressure fan (96), the distance that is arranged on laboratory body of wall (94) outside is between the 1.0m, and the distance of pressure fan (96) exit end face is between the 0.05m, pressure fan (96) is to be supported by pressure fan support (97).Described rainwater spray equipment (98) be connected water pipe (99), be arranged on the upper position of laboratory body of wall (94), glass window framework (101), be provided with and rainproof grid (93) between distance should be more than or equal to 1.2m, rainwater spray equipment (98) be connected water pipe (99) and be connected; And rhone (102) be located at rainproof grid (93) under, its length * wide * depth dimensions is made as 1.0m * 1.0m * 0.5m.
By water-resistant performance test unit alpha test equipment (71), water-resistant performance test unit β testing apparatus (91) and detection method, with pressure fan (76,96) as the air intake power of testing apparatus, when the wind speed of air quantity with 10m/s and 15m/s, be arranged on anemoscope test point (75,95) wind speed test, via connecting water pipe (79,99) with the rainwater spray equipment (78 that is connected, 98) rainwater that is sprayed on rain cover (73) or rainproof grid (93) top more than or equal to the distance of 1.2m, test passage in transit 10 minutes, 20 minutes, after three sections time long run tests of 30 minutes, whether to some extent the rainwater that progressively can observe sprinkling through being arranged on the test unit α (80) on the laboratory body of wall (80), the test unit β (100) that is arranged on the glass window framework (101) is penetrated into organic glass transparent tube (72,92) leave the moisture phenomenon in and take place, this detection method can draw test unit α (80) and test unit β (100) to rainproof performance.
Eight testing apparatuss of the present invention and different detection methods, by to ventilation and the pressure differential of the test unit α (2,12,22,80) of different circles and square bore and test unit β (42,52,62,100), capture the various testing apparatuss and the detection method of dust size size and dust collection capacity, dehumidification rate, water-resistant performance, it is simple and reasonable for structure, and effect is remarkable.
Description of drawings
Fig. 1 is the ventilation that the present invention implemented and the test unit α low-speed wind tunnel testing apparatus figure of pressure differential;
Fig. 2 is the A among Fig. 1 1-A 1, A 2-A 2View;
Fig. 3 is the B among Fig. 1 1-B 1, B 2-B 2Cut-open view
Fig. 4 is the C among Fig. 1 1-C 1, C 2-C 2Cut-open view;
Fig. 5 is the test unit alpha test equipment drawing of capture dust size that the present invention implemented size and dust collection capacity;
Fig. 6 is the D among Fig. 5 1-D 1, D 2-D 2View;
Fig. 7 is the E among Fig. 5 1-E 1, E 2-E 2Cut-open view;
Fig. 8 is the F among Fig. 5 1-F 1, F 2-F 2Cut-open view;
Fig. 9 is the test unit alpha test equipment drawing of the dehumidification rate that the present invention implemented;
Figure 10 is the G among Fig. 9 1-G 1, G 2-G 2View;
Figure 11 is the H among Fig. 9 1-H 1, G 2-G 2Cut-open view;
Figure 12 is the ventilation that the present invention implemented and the test unit β low-speed wind tunnel testing apparatus figure of pressure differential;
Figure 13 is the test unit β testing apparatus figure of capture dust size that the present invention implemented size and dust collection capacity;
Figure 14 is the test unit β testing apparatus figure of the dehumidification rate that the present invention implemented;
Figure 15 is the J among Figure 12, Figure 13, Figure 14 1-J 1, J 2-J 2, J 3-J 3Cut-open view;
Figure 16 is the K among Figure 12, Figure 13, Figure 14 1-K 1, K 2-K 2, K 3-K 3Cut-open view;
Figure 17 is the test unit alpha test equipment drawing of the water-resistant performance that the present invention implemented;
Figure 18 is the test unit β testing apparatus figure of the water-resistant performance that the present invention implemented;
Description of symbols among the figure
1-test unit α low-speed wind tunnel testing apparatus;
2,12,22,80-test unit α;
3,13,23,43,53,63-gas inflow segment straight tube;
3a, 13a, 23a, 43a, 53a, 63a-screen pack baffle plate;
3b, 13b, 23b, 43b, 53b, 63b-nonwoven fabrics filter cloth;
3c, 13c, 23c, 43c, 53c, 63c-10 order metal screen;
3d, 13d, 23d, 43d, 53d, 63d-screen pack case;
3e, 13g, 23g, 43e, 53g, 63g-inflow segment anemoscope;
3f, 43f, 43ff-inflow segment piezometric tube, 3g, 43g-inflow segment Pitot tube;
3j, 13e, 23e, 43j, 53e, 63e-gas inflow filter;
4,44-gas rectifying device, 4a, 44a-flange liner plate;
4b, 44b-10 order gas rectification filter screen, 4c, 44c-gas rectification screen cloth;
5,14,24-gas flows out a section straight tube;
5a, 14a, 24a, 45a, 54a, 64a-flow out the section anemoscope;
5b, 14b, 24b, 45b, 45bb, 54b, 54bb, 64b, 64bb-air volume meter;
5c, 45c, 45cc-flow out the section piezometric tube, and 5d, 45d-flow out the section Pitot tube;
6,16,26,46,56,66-Frequency Adjustable axial flow blower;
7, the digital differential manometer of 47-;
11-captures the test unit alpha test equipment of dust size size and dust collection capacity;
11a, 21a, 51a, 61a-reducer union, 13f, the 53f-section of becoming a mandarin dust pipe;
13h, 53h, 53hh-flow into sampling pipe, and 13i, 53i-flow into the sampling flexible pipe;
14c, 54c, 54cc-flow out sampling pipe, and 14d, 54d-flow out the sampling flexible pipe;
15,55-captures dust size device, 15a, 55a-spacer flanger;
15b, 55b-glassware lining, 15c, 55c-20 order metal screen;
15d, 55d-glassware;
17a, 17b, 57a, 57b-numeral dust concentration tester;
18,58-dust storage device, 18a, 58a-are regulated and are used butterfly valve;
18b, 58b-dust discharge battery tube;
The test unit alpha test equipment of 21-dehumidification rate;
23g, 63g-spray spraying plant, 23h, 63h-inflow segment hygronom;
23f, 63f-inflow segment hygronom, 23i, 63i-inflow segment drainpipe;
23j, 63j-inflow segment drain stop valve, 24d, 64d, 64dd-flow out the section drainpipe;
24e, 64e, 64ee-flow out section drain stop valve;
27a, 27b-water pump, 28a, 28b-header tank;
29a, 29b-spray header, 30a, 30b-water inlet pipe;
41-test unit β low-speed wind tunnel testing apparatus;
42,52,62,100-test unit β;
42a, 52a, 62a-test unit β adjustable bolt;
42b, 52b, 62b-test unit β clamping plate;
45,54,64-gas flows out a section straight tube;
48a, 59a, the reducer union of 68a-gas inflow segment;
48b, 59b, 68b-gas flow out the section reducer union;
51-captures the test unit β testing apparatus of dust size size and dust collection capacity;
60-gas flows out section three-way pipe drive connector;
The test unit β testing apparatus of 61-dehumidification rate;
The test unit alpha test equipment of 71-water-resistant performance;
72,92-organic glass transparent tube, the 73-rain cover;
74,94-laboratory body of wall, 75,95-anemoscope test point;
76,96-pressure fan, 77,97-pressure fan support;
78,98-rainwater spray equipment, 79,99-connects water pipe;
81,102-rhone, the test unit β testing apparatus of 91-water-resistant performance;
The rainproof grid of 93-, 101-glass window framework.
Embodiment
As Fig. 1～shown in Figure 180, performance test of described natural ventilation filtration unit and detection method, adopt each four different performance test apparatus and detection method, can corresponding to the circular bore of difference, be used for offering the natural ventilation filtration unit (being designated hereinafter simply as " test unit α ") that is provided with on the ventilating opening at the buildings in general body of wall, wherein comprise non-power air exchanger (invention patent mandate number; 2008201581295), (application for a patent for invention number: 2009100296103,200910246150X, 2010101352781,2010101549520) of combined type dedusting sound-insulating air suction device 2006100242398), unpowered air intake filter (utility model patent grant number:; Be suitable for book shape and easy building masonry wall, skin uses on glass curtain wall or the outside push-pull type closing type window, the natural ventilation filtration unit (being designated hereinafter simply as " test unit β ") that the square or circular bore ventilating opening of being offered is provided with is comprising window type natural ventilation filtration unit (utility model patent grant number: 2010201261523, application for a patent for invention number: 200910259912X, 2010100046420,2010101182371,2010101587452,201010190396X, 201010236248X, the ventilation of each test unit 2010102950392) and pressure differential, capture dust size size and dust collection capacity, dehumidification rate, every index test of water-resistant performance; The one, be used for test unit α low-speed wind tunnel testing apparatus 1, test unit β low-speed wind tunnel testing apparatus 41 and the detection method of ventilation and pressure differential; The 2nd, be used to capture the test unit β testing apparatus 51 and the detection method of test unit alpha test equipment 11, capture dust size size and the dust collection capacity of dust size size and dust collection capacity; The 3rd, be used for the test unit alpha test equipment 21 of dehumidification rate, the test unit β testing apparatus 61 and the detection method of dehumidification rate; The 4th, be used for the test unit alpha test equipment 71 of water-resistant performance, the test unit β testing apparatus 91 and the detection method of water-resistant performance; The described test unit α low-speed wind tunnel testing apparatus 1 that is used for ventilation and pressure differential, be to flow out section straight tube 5 by gas inflow filter 3j, gas rectifying device 4, gas inflow segment straight tube 3, test unit α 2, gas, Frequency Adjustable axial flow blower 6, digital differential manometer 7 are formed; The described test unit β low-speed wind tunnel testing apparatus 41 that is used for ventilation and pressure differential flows out a section reducer union 48b, three gas by gas inflow filter 41j, gas rectifying device 44, gas inflow segment straight tube 43, gas inflow segment reducer union 48a, test unit β 42, two gas and flows out a section three-way pipe drive connector 49, gas and flow out a section straight tube 45, Frequency Adjustable axial flow blower 46, digital differential manometers 47 and formed; The described test unit alpha test equipment 11 that is used to capture dust size size and dust collection capacity, be by gas inflow filter 13e, be arranged on the dust storage device 18 on the reducer union 11a, gas inflow segment straight tube 13, test unit α 12, gas flow out section straight tube 14, capture the big dingus 15 of dust size, Frequency Adjustable axial flow blower 16, digital dust concentration tester 17a, 17b form; The described test unit β testing apparatus 51 that is used to capture dust size size and dust collection capacity, be by gas inflow filter 53e, be arranged on the dust storage device 58 on the reducer union 51a, gas inflow segment straight tube 53, gas inflow segment reducer union 59a, test unit β 52, two gases flow out section reducer union 59b, gas flows out section three-way pipe drive connector 60, gas flows out section straight tube 54, capture the big dingus 55 of dust size, Frequency Adjustable axial flow blower 56, digital dust concentration tester 57a, 57b form; The described test unit alpha test equipment 21 that is used for dehumidification rate is by gas inflow filter 23e, gas inflow segment straight tube 23, and test unit α 22, gas flow out section straight tube 24, Frequency Adjustable axial flow blower 26, the spray spraying system is formed; The described test unit β testing apparatus 61 that is used for dehumidification rate, be by gas inflow filter 63e, reducer union 61a, gas inflow segment straight tube 63, gas inflow segment reducer union 68a, test unit β 62, gas flow out section reducer union 68b, gas flows out section three-way pipe drive connector 69, gas flows out section straight tube 64, Frequency Adjustable axial flow blower 66, and the spray spraying system is formed; The described test unit alpha test equipment 71 that is used for water-resistant performance is made up of the test unit α 80 in organic glass transparent tube 72, rain cover 73, laboratory body of wall 74, the body of wall, anemoscope test point 75, pressure fan 76, pressure fan support 77, rainwater spray equipment 78, connection water pipe 79, rhone 81; The described test unit β testing apparatus 91 that is used for water-resistant performance is made up of the test unit β 100 in organic glass transparent tube 92, rainproof grid 93, laboratory body of wall 94, glass window framework 101, the glass window framework, anemoscope test point 95, pressure fan 96, pressure fan support 97, rainwater spray equipment 98, connection water pipe 99, rhone 102.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Figure 12, Figure 15, shown in Figure 16, gas inflow filter 3j in the described test unit α low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential 1, include screen pack case 3d, nonwoven fabrics filter cloth 3b, 10 order metal screen 3c, screen pack plate washer 3a, the bore that gas inflow filter 3j is set is DN200, and is same size with bore that gas inflow segment straight tube 3, gas rectifying device 4, test unit α 2, gas flow out a section straight tube 4, Frequency Adjustable axial flow blower 6 and interconnects; Gas inflow filter 43j in the described test unit β low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential 41, its external diameter is made as DN200, and with the inflow entrance of gas inflow segment straight tube 43, gas rectifying device 44, gas inflow segment reducer union 48a, test unit β 42, three gas flow out the bore that flow export external diameter, gas in the section three-way pipe drive connector 49 flows out a section straight tube 45, Frequency Adjustable axial flow blower 46 be same size, remove two gases flow out section external diameter of reducer union 48b different and interconnect; And the length of establishing a gas inflow segment straight tube 3,43 is more than 5 times or 5 times of bore DN200, and length is made as 1m or more than the 1m; The length that gas flows out section straight tube 5,45 is more than 10 times or 10 times of bore DN200, and length is made as 2m or more than the 2m; Moreover the bore that gas flows out section straight tube 5,45 also can be connected by the different bores of other reducer union with Frequency Adjustable axial flow blower 6,46; In the testing apparatus use, screen pack case 3d, 43d play the effect of coming off that prevents nonwoven fabrics filter cloth 3b, 43b, 10 order metal screen 3c, 43c, and are fixed with 4 fastening bolt 3k, 43k; The screen pack layer thickness that is used for gas filtration is 1/5 distance of gas inflow filter 3j, 43j bore DN200, thickness is made as 40mm, screen pack plate washer 3a, the 43a of 4 equal distribution is for fixing and maintenance screen pack layer thickness, screen pack plate washer 3a, 43a are located at inflow point's deep inside of gas inflow filter 3j, 43j, the degree of depth is made as 40mm, and length and the wide size of screen pack plate washer 3a, 43a is set to 15 * 10mm, thickness is made as between 4～6mm.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Figure 12, Figure 15, shown in Figure 16, described gas rectifying device 4,44, contain flange liner plate 4a, 44a, 10 order gas rectification filter screen 4b, 44b, gas rectification screen cloth 4c, 44c, the external diameter that gas rectifying device 4,44 is set is identical with the outer diameter D N200 of gas inflow segment straight tube 3,43, and the aperture of gas rectification screen cloth 4c, 44c belongs to even arrangement states for Φ 9mm.The exit position that gas inflow filter 3j, 43j be set is gas inflow filter 3j, more than 5 times or 5 times of 43j outer diameter D N200 to the distance of gas rectifying device 4,44, and length is made as 1m or more than the 1m; Gas rectifying device 4,44 is more than 10 times or 10 times of gas rectifying device 4,44 outer diameter D N200 to distance between the test unit α 2, and length is made as 2m or more than the 2m; It is that gas flows out section more than 10 times or 10 times of straight tube 5 outer diameter D N to the distance of Frequency Adjustable axial flow blower 6 that the gas of test unit α 2 flows out section straight tube 5, and length is made as 2m or more than the 2m; And between the porch of gas rectifying device 44 and test unit β 42, except that being provided with gas inflow segment straight tube 43j, also be provided with gas inflow segment reducer union 48a; In two exits of test unit β 42, be respectively equipped with gas and flow out section reducer union 48b and three gases outflow section three-way pipe drive connectors 49, flow out section straight tube 45 with gas again and be connected; It is that gas flows out section more than 10 times or 10 times of straight tube 45 outer diameter D N200 to the distance of Frequency Adjustable axial flow blower 46 that the gas of test unit β 42 flows out section straight tube 45, and length is made as 2m or more than the 2m;
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Figure 12, Figure 15, shown in Figure 16, by being used for the test unit α low-speed wind tunnel testing apparatus 1 of ventilation and pressure differential, the detection method of test unit β low-speed wind tunnel testing apparatus 41, with Frequency Adjustable axial flow blower 6,46 as test unit α 2, the air inducing power of test unit β 42 low-speed wind tunnel testing apparatuss, when air quantity is with the wind speed between 2.5～5.0m/s, by Frequency Adjustable axial flow blower 6,46 power is introduced into gas inflow filter 3j, during 43j, via screen pack case 3d, 43d, 10 order metal screen 3c, 43c, nonwoven fabrics filter cloth 3b, enter gas rectifying device 4 after the filtration of 43b and the purified treatment, 44 and gas inflow segment straight tube 3,43, through gas rectifying device 4, the gas of 44 pairs of inflows carries out rectified action, gas is in laminar condition, by gas inflow segment straight tube 3,43, gas flows out section straight tube 5, the inflow segment anemoscope 3e of setting respectively of institute in 45,43e, flow out section anemoscope 5a, when 45a tests the wind speed of 2 inflows of test unit α and eluting gas, can pass through gas inflow segment straight tube 3 again, 43 and gas flow out a section straight tube 5, the inflow segment piezometric tube 3f of setting respectively of institute in 45,43f and inflow segment Pitot tube 3g, 43g, flow out section piezometric tube 5c, a 45c and an outflow section Pitot tube 5d, the digital differential manometer 7 that 45d all is connected, 47, the ventilation of test unit α 2 front and back of flowing through and concrete data that the pressure differential relation is tested at digital differential manometer 7, show on 47, when digital differential manometer 7,47 when being shown as the data value of 9.8Pa, at Frequency Adjustable axial flow blower 6,46 leading portion, gas flows out section straight tube 5, the air volume meter 5b that is provided with on 45,45b can demonstrate the data value of ventilation; Can certainly calculate the ventilation of test unit α 2 and the relation value of pressure differential by the specified flow velocity of Frequency Adjustable axial flow blower 6,46 introducings, gas inflow segment straight tube 3,43 and the outside dimension of gas outflow section straight tube 5,45 or the area of section of airduct; When testing for the wind speed of 42 inflows of test unit β and eluting gas equally, can flow out section reducer union 48b and gas by gas inflow segment reducer union 48a and gas again and flow out in the section three-way pipe drive connector 49 institute the inflow segment piezometric tube 43ff and the inflow segment Pitot tube 43g of setting respectively, flow out section piezometric tube 45cc and flow out the digital differential manometer 47 that section Pitot tube 45d all is connected, the ventilation of test unit β 42 front and back of flowing through and concrete data that the pressure differential relation is tested are shown on digital differential manometer 47, when digital differential manometer 47 is shown as the data value of 9.8Pa, flow out the data value that the air volume meter 45bb that is provided with on the section three-way pipe drive connector 49 can demonstrate ventilation at gas; Secondly for test unit β 42 is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolt 42a with clamping plate 42b and two, one end test unit β is fixed between gas inflow segment straight tube 43 and the gas inflow segment reducer union 48a with clamping plate 42b to be furnished with on the flange face, an other end test unit β with clamping plate fixedly 42b on the framework of test unit β 42, fixed with adjustable bolt 42a by two cover test unit β.
As Fig. 5, Fig. 6, Fig. 7, Fig. 8, Figure 13, Figure 15, shown in Figure 16, the described test unit α 11 that is used to capture dust size size and dust collection capacity, capture the test unit β testing apparatus 51 and the detection method of dust size size and dust collection capacity, gas inflow segment with in a kind of testing apparatus that captures dust size size and dust collection capacity includes gas inflow filter 13e, 53e, reducer union 11a, 51a, gas inflow segment straight tube 13,53, inflow segment anemoscope 13g, 53g, flow into sampling pipe 13h, 53h and inflow sampling flexible pipe 13i, 53i; The outer diameter D N200 of gas inflow filter 13e, 53e and gas inflow segment straight tube 13,53 is set, outside dimension and the equal in length of gas inflow filter 13e, 53e; The screen pack layer thickness that is used for filtering gas is 1/5 distance of gas inflow filter 13e, 53e outer diameter D N200, and thickness is made as 40mm; The inflow segment outside diameter d of reducer union 11a, 51a is half of gas inflow filter 13e, 53e outer diameter D N200, the outflow section external diameter of reducer union 11a, 51a is identical with the outer diameter D N200 of gas inflow filter 13e, 53e, the inflow segment of reducer union 11a, 51a is connected with gas inflow segment straight tube 13,53 with the outflow section of gas inflow filter 13e, 53e, reducer union 11a, 51a, and the waist shape angle of reducer union 11a, 51a should be less than or equal to 20 °; Flow into sampling pipe 13h, 53h and inflow sampling and be connected to digital dust concentration tester 17a, 57a with flexible pipe 13i, 53i, flow into sampling pipe 13h, 53h and be arranged on 2 times of distances test unit α 12 fronts, that be equivalent to gas inflow segment straight tube 13 outer diameter D N200, its length is made as 400mm; The length that gas inflow segment straight tube 13 is set is the distance more than 10 times or 10 times of its outer diameter D N200, and length is made as 2m or more than the 2m; Equally at the leading portion position of test unit β 52, be provided with gas inflow segment reducer union 59a, be provided with on the gas inflow segment reducer union 59a and flow into sampling pipe 53hh and flow into sampling with flexible pipe 53i and be connected to digital dust concentration tester 57a, flow into sampling pipe 53hh and be arranged on 1 times of distance test unit β 52 fronts, that be equivalent to gas inflow segment straight tube 53 outer diameter D N200, its length is made as 200mm.
As Fig. 5, Fig. 6, Fig. 7, Fig. 8, Figure 13, Figure 15, shown in Figure 16, described dust storage device 18,58, include and regulate with butterfly valve (18a, 58a), dust discharges straight tube 18a, 58a, inflow segment dust pipe 18b, 58b, inflow segment dust pipe 18b, 58b is connected to dust and discharges straight tube 13f, the 53f end portion, and run through reducer union 11a, the middle part of 51a, dust discharges straight tube 13f, the 53f upper part connects to regulate uses butterfly valve 18a, 58a and dust storage device 18,58, inflow segment dust pipe 18b is set, center, 58b exit and adjusting butterfly valve 18a, height distance between the 58a, be equivalent to gas inflow filter 13e, the distance more than 10 times or 10 times of 53e outer diameter D N200, its length are made as 2m or more than the 2m.
As Fig. 5, Fig. 6, Fig. 7, Fig. 8, Figure 13, Figure 15, shown in Figure 16, described gas flows out section straight tube 14,54, its external diameter and gas inflow segment straight tube 13,53 outer diameter D N200 is identical, and be provided with and flow out a section anemoscope 14a, 54a, flow out sampling pipe 14c, 54c and outflow sampling flexible pipe 14d, 54d is connected to digital dust concentration tester 17a, 17b, 57a, 57b, air volume meter 14b, 54b, air volume meter 14b, 54b and outflow sampling pipe 14c, 54c is arranged on test unit α 12 back, be equivalent to gas and flow out section straight tube 14,2 times of distances of 54 outer diameter D N200, its length is made as 400mm; What see from the cross section is, the insertion of both sensors differs 90 ° position, it is 5 times or the above 5 times of distances of outer diameter D N200 that the length that gas flows out section straight tube 14,54 is set, and its length is made as 1m or more than the 1m, and is connected with Frequency Adjustable axial flow blower 16,56; For the leading portion position of test unit β 52, be provided with gas inflow segment reducer union 59a, be provided with on the gas inflow segment reducer union 59a and flow into sampling pipe 53h and flow into sampling with flexible pipe 53i and be connected to digital dust concentration tester 57a, 57b, flow into sampling pipe 53h and be arranged on 1 times of distance test unit β 52 fronts, that be equivalent to gas inflow segment straight tube 53 outer diameter D N200, its length is made as 200mm.
As Fig. 5, Fig. 6, Fig. 7, Fig. 8, Figure 13, Figure 15, shown in Figure 16, described capture dust size device 15,55 includes spacer flanger 15a, 55a, glassware lining 15b, 55b, 20 order metal screen 15c, 55c, glassware 15d, 55d; Glassware 15d is set, the external diameter of 55d is that gas flows out section straight tube 14, the half-size scale of 54 outer diameter D N200, diameter is made as φ 100mm, and at glassware 15d, the internal diameter of 55d and the inboard thin layer of coating grease, glassware lining 15b, 55b is attached to spacer flanger 15a, in the 55a, glassware lining 15b, have 4 scallop holes and 4 reinforcements that can ventilate on the 55b, the width of reinforcement is made as 4～5mm, glassware lining 15b, 55b is provided with intermediate groove can put into glassware 15d, 55d, the internal diameter of intermediate groove and the degree of depth are greater than glassware 15d, between the external diameter of 55d and the height 2～3mm, glassware 15d, the opening part of 55d attaches 20 order metal screen 15c, 55c is used for protection, re-use steel wire 20 order metal screen 15c, 55c is fixed on glassware lining 15b, on the reinforcement of 55b, to prevent glassware 15d, 55d coming off in process of the test; The distance that captures between dust size device 15,55 and test unit α 12 and the test unit β 52 is set, and is that gas flows out section distance more than 10 times or 10 times of straight tube 14,54 outer diameter D N200, and its length is made as 2m or more than the 2m.
As Fig. 5, Fig. 6, Fig. 7, Fig. 8, Figure 13, Figure 15, shown in Figure 16, by the detection method that captures dust size size and dust collection capacity test unit α 11, capture dust size size and dust collection capacity test unit β 51 be, with the air inducing power of Frequency Adjustable axial flow blower 16,56, in the leading portion of Frequency Adjustable axial flow blower 16,56, gas flow out section straight tube 14,54, air volume meter 14b, 54b are set as testing apparatus; When air quantity is introduced into gas inflow filter 13e with the wind speed of 2.5～5m/s, during 53e, via screen pack case 13d, 53d, 10 order metal screen 13c, 53c, nonwoven fabrics filter cloth 13b, enter the gas stream section of going into after the filtration of 53b and the purified treatment, flow into reducer union 11a then, 51a, via reducer union 11a, the dust storage device 18 that the top of 51a is provided with, dust in 58, open to regulate and use butterfly valve 18a, 58a, dust is by the freely falling body form, flow into dust and discharge straight tube 18b, 58b and inflow segment dust pipe 13f, the 53f exit, dust and gas combine together, through reducer union 11a, 51a is to the diffusion of gas, gas is in laminar condition, by gas inflow segment straight tube 13,53 or gas inflow segment reducer union 59a, and gas flows out section reducer union 59b or gas flows out section straight tube 14, the inflow segment anemoscope 13g that is provided with respectively in 54,53g, flow out section anemoscope 14a, 54a, air volume meter 14b, 54b is to wind speed and the air quantity and the test of gas, can pass through gas inflow segment straight tube 13 again, 53 and gas flow out a section straight tube 14, the inflow sampling pipe 13h that is provided with respectively in 54,53h and inflow sampling flexible pipe 13i, 53i, flow out sampling pipe 14c, 54c and outflow sampling flexible pipe 14d, the 54d digital dust concentration tester 17a separately that all is connected, 17b, 57a, 57b, the concrete data before and after the dust collection capacity of flow through test unit α 12 and test unit β 52 at digital dust concentration tester 17a, 17b, 57a, show on the 57b, be provided with 14 via flowing out section at gas, 54 dust size capturing device 15, the glassware 15d that scribbles greasy films in 55,55d, the dust size that traps outflow, amplify more than 600 times by microscope, be printed on the picture as the size foundation with PM10 (10 μ m) size-spacing mark, can measure the detection method of the dust size size that traps outflow; Secondly for test unit β 52 is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolt 52a with clamping plate 52b and two, one end test unit β is fixed between gas inflow segment straight tube 53 and the gas inflow segment reducer union 59a with clamping plate 52b to be furnished with on the flange face, an other end test unit β with clamping plate fixedly 52b on the framework of test unit β 52, fixed with adjustable bolt 52a by two cover test unit β.
As Fig. 9, Figure 10, Figure 11, Figure 14, Figure 15, shown in Figure 16, the described test unit α 21 that is used for dehumidification rate, the test unit β 61 and the detection method of dehumidification rate, with the gas inflow segment in a kind of testing apparatus of dehumidification rate, include gas inflow filter 23e, 63e, reducer union 21a, gas inflow segment straight tube 23,63, inflow segment anemoscope 23h, 63h, inflow segment thermometer 23f, 63f, gas inflow segment straight tube 23 is set, 63 external diameter is DN200, inflow segment drainpipe 23i, 63i inserts test unit α 22 fronts, be equivalent to gas inflow segment straight tube 23, the distance of 63 diameter outer diameter D N200 is with inflow segment drain stop valve 23j, 63j is connected; And test unit β (62) front, except that many gas inflow segment reducer union 58a, with test unit α 22 fronts identical configuration is arranged, for test unit β 62 fronts, inflow segment drainpipe 23i, 63i be inserted on the gas inflow segment reducer union 58a, a half-distance that is equivalent to gas inflow segment straight tube 23,63 diameter outer diameter D N200 is 100mm, and is connected with inflow segment drain stop valve 23j, 63j.
As Fig. 9, Figure 10, Figure 11, Figure 14, Figure 15, shown in Figure 16, described gas inflow filter 21a, 61a, include screen pack case 23d, 63d, nonwoven fabrics filter cloth 23b, 63b, 10 order metal screen 23c, 63c, screen pack plate washer 23a, 63a composition, outer diameter D N200 and gas inflow segment straight tube 23,63, test unit α 22, gas that gas inflow filter 21a, 61a are set flow out section straight tube (24,64), and the external diameter of scalable axial flow blower (26,66) is identical; Screen pack case 23d, 63d play a part protection nonwoven fabrics filter cloth 23b, 63b, 10 order metal screen 23c, 63c; The screen pack layer depth that is used for filtering gas is 1/5 distance of gas inflow filter 21a, 61a outer diameter D N200, and length is made as 40mm; Screen pack plate washer 23a, the 63a that 4 equal distribution are set is for fixing and maintenance screen pack layer depth; At gas inflow filter 21a, the horizontal central line of 61a, be equivalent to gas inflow filter 21a, spray nozzle 21g is set on the half-distance of 61a outer diameter D N200,61g, nozzle 21g, the 61g direction is towards test unit α 22, inflow point with test unit β 62, by spray water pipe 29a, 29b, spray water stop valve is connected and forms the spray spraying plant, again by spray water pipe 29a, 29b and spray water pump 27a, 27b, header tank 28a, interconnect between the 28b, header tank 28a, the height ball-cock assembly of control automatically is set in the 28b, by header tank 28a, 28b is external in water inlet pipe 30a, 30b and water inlet stop valve, and form the spray spraying system.
As Fig. 9, Figure 10, Figure 11, Figure 14, Figure 15, shown in Figure 16, described gas flows out section straight tube 24,64, include and flow out section anemoscope 24a, 64a, flow out section hygronom 24c, 64c, air volume meter 24b, 64b, gas is set flows out section straight tube 24,64 length is the distance more than 10 times or 10 times of outer diameter D N200, its length is made as 2m or more than the 2m, and with Frequency Adjustable axle axial flow blower 26,66 are connected, test unit α 22 back, be equivalent to gas and flow out section straight tube (24,64) distance of outer diameter D N200 is 200mm, and is connected with an outflow section drain stop valve; And the set outflow section drainpipe 64dd in test unit β 62 back be inserted in gas flow out section reducer union 68b, to be equivalent to the half-distance that gas flows out section straight tube 64 outer diameter D N200 be 100mm, and be connected with inflow segment drain stop valve 64ee.
As Fig. 9, Figure 10, Figure 11, Figure 14, Figure 15, shown in Figure 16, by dehumidification rate test unit α 21, dehumidification rate test unit β (61) testing apparatus and detection method, with the air inducing power of Frequency Adjustable axial flow blower 26,66, at the leading portion of Frequency Adjustable axial flow blower 26,66, to be equivalent to the distance that gas flows out section straight tube 24,64 outer diameter D N200 be that air volume meter 24b, 64b are set in the 200mm as testing apparatus; When air quantity is introduced into gas inflow filter 21a with 5m/s or with the wind speed of 10m/s, during 61a, via screen pack case 23d, 63d, 10 order metal screen 23c, 63c, nonwoven fabrics filter cloth 23b, when after the filtration of 63b and the purified treatment, start the spray spraying system, enter into the reducer union 21a of gas inflow segment by the spray fan-shaped vaporific moisture that spraying system sprayed, in the 61a, via reducer union 21a, the diffusion of the gas of 61a, gas is in laminar condition, by gas inflow segment straight tube 23,63, gas flows out section straight tube 24,64 or gas flow out the inflow segment anemoscope 23h that is provided with respectively in the section reducer union 68b, 63h, flow out section anemoscope 24a, 64a is to the test of eluting gas wind speed, again by gas inflow segment straight tube 23,63 and gas flow out a section straight tube 24,64 or gas flow out the inflow segment hygronom 23f that is provided with respectively in the section reducer union 68b, a 63f and an outflow section hygronom 24c, 64c is to the test and the comparison of the humidity percentage that contains fan-shaped vaporific moisture in the gas, and this detection method can draw the actual percentage of test unit α 22 and test unit β 62 dehumidification rates; Moreover, for test unit β 62 is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolt 62a with clamping plate 62b and two, one end test unit β is fixed between gas inflow segment straight tube 63 and the gas inflow segment reducer union 68a with clamping plate 62b to be furnished with on the flange face, an other end test unit β with clamping plate fixedly 62b on the framework of test unit β 62, fixed with adjustable bolt 62a by two cover test unit β.
As Figure 17, shown in Figure 180, described test unit alpha test equipment 71, the water-resistant performance test unit β testing apparatus 91 that is used for water-resistant performance, organic glass transparent tube 72 and rain cover 73 in a kind of water-resistant performance testing apparatus that on body of wall, is provided with, interconnect with the test unit α 80 that is arranged in the body of wall, the length of organic glass transparent tube 72 is made as 300mm, level height h 1All being arranged on apart from ground is smaller or equal to 1.5m; The distance that described anemoscope test point 75 and pressure fan 76, anemoscope test point 75 are arranged on laboratory body of wall (74) outside is between the 1.0m, and with the distance L of pressure fan 76 exit end faces 2Between 0.05m, pressure fan 76 is to be supported by pressure fan support 77.Described rainwater spray equipment 78 be connected water pipe 79, be arranged on the upper position of laboratory body of wall 74, and the centre distance h between the rain cover 73 2Be arranged on more than or equal to 1.2m, rainwater spray equipment 78 be connected water pipe 79 and be connected; And rhone 81 be located at rain cover 73 under, its length * wide * depth dimensions is made as 1.0m * 1.0m * 0.5m; Interconnect for the test unit β 100 that is arranged in the glass window framework 101, the length of organic glass transparent tube 92 is 300mm, level height h 11All being arranged on apart from ground is smaller or equal to 1.5m; Described anemoscope test point 95 and pressure fan 96, the distance that is arranged on laboratory body of wall 94 outsides is between the 1.0m, and the distance of pressure fan 96 exit end faces is between the 0.05m, pressure fan 96 is to be supported by pressure fan support 97.Described rainwater spray equipment 98 be connected water pipe 99, be arranged on the upper position of laboratory body of wall 94, glass window framework 101, be provided with and rainproof grid 93 between distance should be more than or equal to 1.2m, rainwater spray equipment 98 be connected water pipe 99 and be connected; And rhone 102 be located at rainproof grid 93 under, its length * wide * depth dimensions is made as 1.0m * 1.0m * 0.5m.
As Figure 17, shown in Figure 180, by water-resistant performance test unit alpha test equipment (71), water-resistant performance test unit β testing apparatus 91 and detection method, with pressure fan 76,96 air intake power as testing apparatus, when the wind speed of air quantity with 10m/s and 15m/s, be arranged on anemoscope test point 75,95 wind speed test, via connecting water pipe 79,99 with the rainwater spray equipment 78 that is connected, 98 rainwater that sprayed on rain cover 73 or rainproof grid 93 tops more than or equal to the distance of 1.2m, test passage in transit 10 minutes, 20 minutes, after three sections time long run tests of 30 minutes, whether to some extent the rainwater that progressively can observe sprinkling through being arranged on the test unit α 80 on the laboratory body of wall 80, the test unit β 100 that is arranged on the glass window framework 101 is penetrated into organic glass transparent tube 72, leave the moisture phenomenon in 92 and take place, this detection method can draw test unit α 80 and 100 pairs of rainproof performances of test unit β.
As Fig. 1～shown in Figure 180, eight testing apparatuss of the present invention and different detection methods, by to ventilation and the pressure differential of the test unit α 2,12,22,80 of different circles and square bore and test unit β 42,52,62,100, capture the various testing apparatuss and the detection method of dust size size and dust collection capacity, dehumidification rate, water-resistant performance, it is simple and reasonable for structure, and effect is remarkable; Through the data after the difference detection of testing apparatus be: when the ventilation of air pressure difference under 9.8Pa, 50Pa state is 15m 3/ h, 35m 3More than/the h; It is more than 90% that the outdoor air that contains the relative saturation moisture flows into the indoor dehumidification rate that makes; When the air pressure difference captures the particle diameter of dust smaller or equal to 5.0 μ m under the 70Pa state, its dust removing effects is more than 90%; After noise reduction capability was 30dB, IAQ (indoor air quality) can be fully improved, and reduced indoor-outdoor air and polluted harm to health, reached to be used for that covil construction are energy-conservation, the device of non-carbon-emitting effect.

Claims (9)

1. performance test of natural ventilation filtration unit and detection method, adopt each four different performance test apparatus and detection method, can be corresponding to the circular bore of difference, be used for offering the natural ventilation filtration unit (being designated hereinafter simply as " test unit α ") that is provided with on the ventilating opening, wherein comprise non-power air exchanger (invention patent mandate number: 2006100242398) at the buildings in general body of wall, unpowered air intake filter (utility model patent grant number: 2008201581295), (the application for a patent for invention number: 2009100296103 of combined type dedusting sound-insulating air suction device, 200910246150X, 2010101352781,2010101549520); Be suitable for book shape and easy building masonry wall, skin uses on glass curtain wall or the outside push-pull type closing type window, the natural ventilation filtration unit (being designated hereinafter simply as " test unit β ") that the square or circular bore ventilating opening of being offered is provided with is comprising window type natural ventilation filtration unit (utility model patent grant number: 2010201261523, application for a patent for invention number: 200910259912X, 2010100046420,2010101182371,2010101587452,201010190396X, 201010236248X, the ventilation of each test unit 2010102950392) and pressure differential, capture dust size size and dust collection capacity, dehumidification rate, every index test of water-resistant performance; The one, be used for test unit α low-speed wind tunnel testing apparatus, test unit β low-speed wind tunnel testing apparatus and the detection method of ventilation and pressure differential; The 2nd, be used to capture the test unit β testing apparatus and the detection method of test unit alpha test equipment, capture dust size size and the dust collection capacity of dust size size and dust collection capacity; The 3rd, be used for the test unit alpha test equipment of dehumidification rate, the test unit β testing apparatus and the detection method of dehumidification rate; The 4th, be used for the test unit alpha test equipment of water-resistant performance, the test unit β testing apparatus and the detection method of water-resistant performance; The described test unit α low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential, be to flow out the section straight tube by gas inflow filter, gas rectifying device, gas inflow segment straight tube, test unit α, gas, Frequency Adjustable axial flow blower, digital differential manometer are formed; The described test unit β low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential is made up of gas inflow filter, gas rectifying device, gas inflow segment straight tube, the reducer union of gas inflow segment, test unit β, the reducer union of two gas outflow sections, three gas outflow section three-way pipe drive connectors, a gas outflow section straight tube, Frequency Adjustable axial flow blower, digital differential manometers; The described test unit alpha test equipment that is used to capture dust size size and dust collection capacity, be by the gas inflow filter, be arranged on the dust storage device in the reducer union, gas inflow segment straight tube, test unit α, gas flow out the section straight tube, capture the big dingus of dust size, the Frequency Adjustable axial flow blower, digital dust concentration tester is formed; The described test unit β testing apparatus that is used to capture dust size size and dust collection capacity, be by the gas inflow filter, be arranged on the dust storage device in the reducer union, gas inflow segment straight tube, the reducer union of gas inflow segment, test unit β, two gases flow out the section reducer union, and gas flows out section three-way pipe drive connector, gas flows out the section straight tube, capture the big dingus of dust size, the Frequency Adjustable axial flow blower, digital dust concentration tester is formed; The described test unit alpha test equipment that is used for dehumidification rate is by the gas inflow filter, gas inflow segment straight tube, and test unit α, gas flow out the section straight tube, the Frequency Adjustable axial flow blower, the spray spraying system is formed; The described test unit β testing apparatus that is used for dehumidification rate, be by the gas inflow filter, reducer union, gas inflow segment straight tube, the reducer union of gas inflow segment, test unit β, gas flow out the section reducer union, gas flows out section three-way pipe drive connector, gas flows out the section straight tube, the Frequency Adjustable axial flow blower, and the spray spraying system is formed; The described test unit alpha test equipment that is used for water-resistant performance is made up of the test unit α in organic glass transparent tube, rain cover, laboratory body of wall, the body of wall, anemoscope test point, pressure fan, pressure fan support, rainwater spray equipment, connection water pipe, rhone; The described test unit β testing apparatus that is used for water-resistant performance is made up of the test unit β in organic glass transparent tube, rainproof grid, laboratory body of wall, glass window framework, the glass window framework, anemoscope test point, pressure fan, pressure fan support, rainwater spray equipment, connection water pipe, rhone.
2. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: the described interior gas inflow filter of test unit α low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential, include screen pack case, nonwoven fabrics filter cloth, 10 solid metal screens, screen pack plate washer, the bore that the gas inflow filter is set is DN200, and is same size with bore that gas inflow segment straight tube, gas rectifying device, test unit α, gas flow out a section straight tube, Frequency Adjustable axial flow blower and interconnects; The described interior gas inflow filter of test unit β low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential, its external diameter is made as DN200, and with the inflow entrance of gas inflow segment straight tube, gas rectifying device, the reducer union of gas inflow segment, test unit β, three gas flow out the bore that flow export external diameter, gas in the section three-way pipe drive connector flows out a section straight tube, Frequency Adjustable axial flow blower be same size, remove two gases flow out the external diameter of section reducer unions different and interconnect; And the length of establishing a gas inflow segment straight tube is more than 5 times or 5 times of bore DN200, and length is made as 1m or more than the 1m; The length that gas flows out the section straight tube is more than 10 times or 10 times of bore DN200, and length is made as 2m or more than the 2m; Moreover the bore that gas flows out the section straight tube also can be connected with the different bores of Frequency Adjustable axial flow blower by other reducer union; In the testing apparatus use, the screen pack case plays the effect of coming off that prevents nonwoven fabrics filter cloth, 10 order metal screens, and is fixed with 4 fastening bolts; The screen pack layer thickness that is used for gas filtration is 1/5 distance of gas inflow filter bore DN200, thickness is made as 40mm, the screen pack plate washer of 4 equal distribution is for fixing and maintenance screen pack layer thickness, the screen pack plate washer is located at inflow point's deep inside of gas inflow filter, the degree of depth is made as 40mm, and the length of screen pack plate washer and wide size are set to 15 * 10mm, thickness is made as between 4～6mm; Described gas rectifying device, contain flange liner plate, 10 order gas rectification filter screens, gas rectification screen cloth, the external diameter that gas rectifying device is set is identical with the outer diameter D N200 of gas inflow segment straight tube, and the aperture of gas rectification screen cloth belongs to even arrangement states for Φ 9mm.The exit position that the gas inflow filter is set is more than 5 times or 5 times of gas inflow filter outer diameter D N200 to the distance of gas rectifying device, and length is made as 1m or more than the 1m; Gas rectifying device is more than 10 times or 10 times of gas rectifying device outer diameter D N200 to distance between the test unit α, and length is made as 2m or more than the 2m; It is that gas flows out section more than 10 times or 10 times of straight tube outer diameter D N to the distance of Frequency Adjustable axial flow blower that the gas of test unit α flows out the section straight tube, and length is made as 2m or more than the 2m; And between the porch of gas rectifying device and test unit β, except that being provided with gas inflow segment straight tube, also be provided with the reducer union of gas inflow segment; In two exits of test unit β, be respectively equipped with gas and flow out section reducer union and three gases outflow section three-way pipe drive connectors, flow out the section straight tube with gas again and be connected; It is that gas flows out section more than 10 times or 10 times of straight tube outer diameter D N200 to the distance of Frequency Adjustable axial flow blower that the gas of test unit β flows out the section straight tube, and length is made as 2m or more than the 2m;
3. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: the described test unit α low-speed wind tunnel testing apparatus that is used for ventilation and pressure differential, the detection method of test unit β low-speed wind tunnel testing apparatus, with the Frequency Adjustable axial flow blower as test unit α, the air inducing power of test unit β low-speed wind tunnel testing apparatus, when air quantity is with the wind speed between 2.5～5.0m/s, when the power by the Frequency Adjustable axial flow blower is introduced into the gas inflow filter, via the screen pack case, 10 order metal screens, enter gas rectifying device and gas inflow segment straight tube after the filtration of nonwoven fabrics filter cloth and the purified treatment, through gas rectifying device the gas that flows into is carried out rectified action, gas is in laminar condition, by gas inflow segment straight tube, gas flows out in the section straight tube institute's inflow segment anemoscope of setting respectively, when an outflow section anemoscope is tested the wind speed of test unit α inflow and eluting gas, can flow out in the section straight tube institute inflow segment piezometric tube and the inflow segment Pitot tube of setting respectively by gas inflow segment straight tube and gas again, flow out the section piezometric tube and flow out the digital differential manometer that the section Pitot tube all is connected, the concrete data that flow through ventilation before and after the test unit α and pressure differential relation are tested show on digital differential manometer, when digital differential manometer is shown as the data value of 9.8Pa, at the leading portion of Frequency Adjustable axial flow blower, gas flows out the data value that the air volume meter that is provided with on the section straight tube can demonstrate ventilation; Can certainly calculate the ventilation of test unit α and the relation value of pressure differential by the specified flow velocity of Frequency Adjustable axial flow blower introducing, gas inflow segment straight tube and the outside dimension of gas outflow section straight tube or the area of section of airduct; When testing for the wind speed of test unit β inflow and eluting gas equally, can flow out section reducer union and gas by the reducer union of gas inflow segment and gas again and flow out in the section three-way pipe drive connector institute inflow segment piezometric tube and the inflow segment Pitot tube of setting respectively, flow out the section piezometric tube and flow out the digital differential manometer that the section Pitot tube all is connected, the concrete data that flow through ventilation before and after the test unit β and pressure differential relation are tested show on digital differential manometer, when digital differential manometer is shown as the data value of 9.8Pa, flow out the data value that the air volume meter that is provided with on the section three-way pipe drive connector can demonstrate ventilation at gas; Secondly for test unit β is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolts with clamping plate and two, one end test unit β is fixed between gas inflow segment straight tube and the reducer union of gas inflow segment with clamping plate to be furnished with on the flange face, an other end test unit β is fixed on clamping plate on the framework of test unit β, is fixed with adjustable bolt by two cover test unit β.
4. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: described test unit β testing apparatus and the detection method that is used to capture test unit α, capture dust size size and the dust collection capacity of dust size size and dust collection capacity, gas inflow segment with in a kind of testing apparatus that captures dust size size and dust collection capacity includes gas inflow filter, reducer union, gas inflow segment straight tube, inflow segment anemoscope, flows into sampling pipe and use flexible pipe with flowing into to sample; The outer diameter D N200 of gas inflow filter and gas inflow segment straight tube is set, the outside dimension of gas inflow filter and equal in length; The screen pack layer thickness that is used for filtering gas is 1/5 distance of gas inflow filter outer diameter D N200, and thickness is made as 40mm; The inflow segment outside diameter d of reducer union is half of gas inflow filter outer diameter D N200, the outflow section external diameter of reducer union is identical with the outer diameter D N200 of gas inflow filter, the inflow segment of reducer union is connected with gas inflow segment straight tube with the outflow section of gas inflow filter, reducer union, and the waist shape angle of reducer union should be less than or equal to 20 °; Flow into sampling pipe and be connected to digital dust concentration tester with flowing into sampling with flexible pipe, flow into sampling pipe and be arranged on 2 times of distances test unit α front, that be equivalent to gas inflow segment straight tube outer diameter D N200, its length is made as 400mm; The length that gas inflow segment straight tube is set is the distance more than 10 times or 10 times of its outer diameter D N200, and length is made as 2m or more than the 2m; Equally at the leading portion position of test unit β, be provided with the reducer union of gas inflow segment, be provided with in the reducer union of gas inflow segment and flow into sampling pipe and flow into sampling with flexible pipe 53i and be connected to digital dust concentration tester, flow into sampling pipe and be arranged on 1 times of distance test unit β front, that be equivalent to gas inflow segment straight tube outer diameter D N200, its length is made as 200mm.
5. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: described dust storage device, include to regulate and use butterfly valve, dust discharges straight tube, inflow segment dust pipe, inflow segment dust pipe is connected to dust and discharges the straight tube end portion, and run through the middle part of reducer union, dust discharges the straight tube upper part and connects adjusting butterfly valve and dust storage device, inflow segment dust center, pipe exit is set and regulates the height distance of using between the butterfly valve, the distance more than 10 times or 10 times that is equivalent to gas inflow filter outer diameter D N200, its length are made as 2m or more than the 2m;
Described gas flows out the section straight tube, its external diameter is identical with the outer diameter D N200 of gas inflow segment straight tube, and be provided with and flow out a section anemoscope, flow out sampling pipe and flow out sampling and be connected to digital dust concentration tester, air volume meter with flexible pipe, air volume meter and outflow sampling pipe are arranged on 2 times of distances test unit α back, that be equivalent to gas outflow section straight tube outer diameter D N200, and its length is made as 400mm; What see from the cross section is, the insertion of both sensors differs 90 ° position, and it is 5 times or the above 5 times of distances of outer diameter D N200 that the length that gas flows out the section straight tube is set, and its length is made as 1m or more than the 1m, and is connected with the Frequency Adjustable axial flow blower; For the leading portion position of test unit β, be provided with the reducer union of gas inflow segment, be provided with in the reducer union of gas inflow segment and flow into sampling pipe and flow into sampling with flexible pipe and be connected to digital dust concentration tester, flow into sampling pipe and be arranged on 1 times of distance test unit β front, that be equivalent to gas inflow segment straight tube outer diameter D N200, its length is made as 200mm; Described capture dust size device includes spacer flanger, glassware lining, 20 order metal screens, glassware; The external diameter that glassware is set is the half-size scale that gas flows out section straight tube outer diameter D N200, diameter is made as φ 100mm, and the thin layer of coating grease in the internal diameter and the inboard of glassware, glassware is attached in the spacer flanger with lining, glassware is with having 4 scallop holes and 4 reinforcements that can ventilate on the lining, the width of reinforcement is made as 4～5mm, glassware is provided with intermediate groove with lining can put into glassware, between the internal diameter of intermediate groove and the degree of depth the external diameter and height 2～3mm greater than glassware, the opening part of glassware attaches 20 order metal screens and is used for protection, re-use steel wire 20 order metal screens are fixed on glassware with on the reinforcement of lining, to prevent glassware coming off in process of the test; The distance that captures between dust size device and test unit α and the test unit β is set, and is that gas flows out section distance more than 10 times or 10 times of straight tube outer diameter D N200, and its length is made as 2m or more than the 2m.
6. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: described detection method by capture dust size size and dust collection capacity test unit α, capture dust size size and dust collection capacity test unit β is, with the air inducing power of Frequency Adjustable axial flow blower, in the leading portion of Frequency Adjustable axial flow blower, gas flow out the section straight tube, air volume meter is set as testing apparatus; When air quantity is introduced into the gas inflow filter with the wind speed of 2.5～5m/s, via the screen pack case, 10 order metal screens, enter the gas stream section of going into after the filtration of nonwoven fabrics filter cloth and the purified treatment, flow into reducer union then, dust in the dust storage device that is provided with via the top of reducer union, open to regulate and use butterfly valve, dust is by the freely falling body form, flow into dust and discharge straight tube and inflow segment dust pipe exit, dust and gas combine together, through the diffusion of reducer union to gas, gas is in laminar condition, by gas inflow segment straight tube or the reducer union of gas inflow segment, and gas flows out the section reducer union or gas flows out the inflow segment anemoscope that is provided with respectively in the section straight tube, flow out the section anemoscope, air volume meter is to wind speed and the air quantity and the test of gas, can flow out the inflow sampling pipe that is provided with respectively in the section straight tube and flow into the sampling flexible pipe by gas inflow segment straight tube and gas again, flowing out sampling pipe samples with all be connected separately digital dust concentration tester of flexible pipe with flowing out, concrete data before and after the dust collection capacity of flow through test unit α and test unit β are shown on digital dust concentration tester, via the glassware that scribbles greasy films in the dust size capturing device that flows out the section setting at gas, the dust size that traps outflow, amplify more than 600 times by microscope, be printed on the picture as the size foundation with PM10 (10 μ m) size-spacing mark, can measure the detection method of the dust size size that traps outflow; Secondly for test unit β is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolts with clamping plate and two, one end test unit β is fixed between gas inflow segment straight tube and the reducer union of gas inflow segment with clamping plate to be furnished with on the flange face, an other end test unit β is fixed on clamping plate on the framework of test unit β, is fixed with adjustable bolt by two cover test unit β.
7. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: the described test unit α that is used for dehumidification rate, the test unit β and the detection method of dehumidification rate, with the gas inflow segment in a kind of testing apparatus of dehumidification rate, include the gas inflow filter, reducer union, gas inflow segment straight tube, the inflow segment anemoscope, the inflow segment hygronom, the external diameter that gas inflow segment straight tube is set is DN200, the inflow segment drainpipe inserts test unit α front, be equivalent to the distance of gas inflow segment straight tube diameter outer diameter D N200, be connected with inflow segment drain stop valve; And test unit β front, except that the reducer union of many gas inflow segments, with test unit α front identical configuration is arranged, for test unit β front, the inflow segment drainpipe is inserted in the reducer union of gas inflow segment, a half-distance that is equivalent to gas inflow segment straight tube diameter outer diameter D N200 is 100mm, and is connected with inflow segment drain stop valve;
Described gas inflow filter, include screen pack case, nonwoven fabrics filter cloth, 10 order metal screens, screen pack plate washer composition, outer diameter D N200 and gas inflow segment straight tube, test unit α, gas that the gas inflow filter is set flow out the section straight tube, and the external diameter of scalable axial flow blower is identical; The screen pack case plays a part protection nonwoven fabrics filter cloth, 10 order metal screens; The screen pack layer depth that is used for filtering gas is 1/5 distance of gas inflow filter outer diameter D N200, and length is made as 40mm; The screen pack plate washer that 4 equal distribution are set is for fixing and maintenance screen pack layer depth; Horizontal central line at the gas inflow filter, be equivalent to be provided with on the half-distance of gas inflow filter outer diameter D N200 the spray nozzle, the nozzle direction is towards the inflow point of test unit α and test unit β, be connected to form by spray water pipe, spray water stop valve and spray spraying plant, again by spraying water pipe and spray with interconnecting between water pump, the header tank, the height ball-cock assembly of control automatically is set in the header tank, be external in water inlet pipe and water inlet stop valve by header tank, and form the spray spraying system;
Described gas flows out the section straight tube, include and flow out the section anemoscope, flow out the section thermometer, air volume meter, it is the distance more than 10 times or 10 times of outer diameter D N200 that the length that gas flows out the section straight tube is set, and its length is made as 2m or more than the 2m, and is connected with Frequency Adjustable axle axial flow blower, distance test unit α back, that be equivalent to gas outflow section straight tube outer diameter D N200 is 200mm, and is connected with an outflow section drain stop valve; And the set outflow section drainpipe in test unit β back be inserted in gas flow out the section reducer union, to be equivalent to the half-distance that gas flows out section straight tube outer diameter D N200 be 100mm, and be connected with inflow segment drain stop valve.
8. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: by dehumidification rate test unit α, dehumidification rate test unit β testing apparatus and detection method, with the air inducing power of Frequency Adjustable axial flow blower, at the leading portion of Frequency Adjustable axial flow blower, to be equivalent to the distance that gas flows out section straight tube outer diameter D N200 be in the 200mm air volume meter to be set as testing apparatus; When air quantity is introduced into the gas inflow filter with 5m/s or with the wind speed of 10m/s, via the screen pack case, 10 order metal screens, when after the filtration of nonwoven fabrics filter cloth and the purified treatment, start the spray spraying system, enter in the reducer union of gas inflow segment by the spray fan-shaped vaporific moisture that spraying system sprayed, diffusion via the gas of reducer union, gas is in laminar condition, by gas inflow segment straight tube, gas flows out the section straight tube or gas flows out the inflow segment anemoscope that is provided with respectively in the section reducer union, flow out of the test of section anemoscope to the eluting gas wind speed, flow out section straight tube or gas by gas inflow segment straight tube and gas again and flow out the inflow segment hygronom that is provided with respectively in the section reducer union and flow out test and the comparison of section hygronom to the humidity percentage that contains fan-shaped vaporific moisture in the gas, this detection method can draw the actual percentage of test unit α and test unit β dehumidification rate; Moreover, for test unit β is fixed on the testing apparatus, adopting up and down, two test unit β overlap test unit β adjustable bolts with clamping plate and two, one end test unit β is fixed between gas inflow segment straight tube and the reducer union of gas inflow segment with clamping plate to be furnished with on the flange face, an other end test unit β is fixed on clamping plate on the framework of test unit β, is fixed with adjustable bolt by two cover test unit β.
9. natural ventilation filtration unit as claimed in claim 1 performance test and detection method, it is characterized in that: described test unit alpha test equipment, the water-resistant performance test unit β testing apparatus that is used for water-resistant performance, organic glass transparent tube and rain cover in a kind of water-resistant performance testing apparatus that on body of wall, is provided with, interconnect with the test unit α that is arranged in the body of wall, the length of organic glass transparent tube is made as 300mm, level height h 1All being arranged on apart from ground is smaller or equal to 1.5m; The distance that described anemoscope test point and pressure fan, anemoscope test point are arranged on the laboratory wall outer side is between the 1.0m, and with the distance L of pressure fan exit end face 2Between 0.05m, pressure fan is to be supported by the pressure fan support.Described rainwater spray equipment be connected water pipe, be arranged on the upper position of laboratory body of wall, and the centre distance h between the rain cover 2Be arranged on more than or equal to 1.2m, the rainwater spray equipment be connected water pipe and be connected; And rhone be located at rain cover under, its length * wide * depth dimensions is made as 1.0m * 1.0m * 0.5m; Interconnect for the test unit β that is arranged in the glass window framework, the length of organic glass transparent tube is 300mm, level height h 11All being arranged on apart from ground is smaller or equal to 1.5m; Described anemoscope test point and pressure fan, the distance that is arranged on the laboratory wall outer side is between the 1.0m, and the distance of pressure fan exit end face is between the 0.05m, pressure fan is to be supported by the pressure fan support.Described rainwater spray equipment be connected water pipe, be arranged on the upper position of laboratory body of wall, glass window framework, be provided with and rainproof grid between distance should be more than or equal to 1.2m, the rainwater spray equipment be connected water pipe and be connected; And rhone be located at rainproof grid (93) under, its length * wide * depth dimensions is made as 1.0m * 1.0m * 0.5m.
CN201010524336XA 2009-10-29 2010-10-16 Method for performance testing and detection of natural ventilation filter device Pending CN102053019A (en)

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