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1、JAPANESE I NDUSTRIAL STANDARD e o Small-size Reciprocating Air Compressors a Translated and Published by Japanese Standards Association Printed in Japan UDC 621.512 +. 1 5 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, B
2、ernie Not for Resale, 03/14/2007 09:00:08 MDTNo reproduction or networking permitted without license from IHS -,-,- Translation without guarantee In the event of any doubt arising, the original standard in Japanese is to be evidence . Copyright Japanese Standards Association Provided by IHS under li
3、cense with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 09:00:08 MDTNo reproduction or networking permitted without license from IHS -,-,- : JPS B*8342 8b W 4933608 0022374 2 M 1 UDC 621,512 JAPANESE INDUSTRIAL STANDARD 31s Small-size Reciprocating Air Compresso
4、rs B 8342-1986 i. Scope This Jap an8 se Industrial Stan dard specifies the sin gle - actin g a i r -cooled single-stage reciprocating air compressors having the maximum pressure( of 200 to 1000 kPa 2 to 10 kgf/cm2) and the single-acting air-cooled two-stage reciprocating ab? compressors having the m
5、aximum pressure of 700 to 1400 kPa 7 to 14 kgf/cm2) , combined with electric motors with a rated output of not more than 1 1 kW or internal combustion engines equivalent thereto, to be used mainly in painting, air-filling and other general works, hereinafter referred to as the “compressors“, The gas
6、 handled i n the compressor shall be air having a temperature of -15 to -400C(2) at the ordinary pressure, are delivered without the equipment of electric motors or internal combustion engines, This standard also applies to the compressors for the same purposes that Notes( ) The pressure at which th
7、e pressure switch or automatic unloaer is actuated. (2) Where a freezing preventive measures is particularly required because of the temperature of not more than OOC, it shall be subjected to the agreement between the perties concerned. The unitsand numerical values given in in this standard are in
8、accordance with the conventional unit and are the standard values. Remark: 2, Types The compressors shall be divided into the types as shown in Table 1 by the lubricathg system, number of stages, rated output of the electric driving motor and the maximum pressure of the compressor, Provided that the
9、 nter- mediate values Table 1 may be taken as the maximum pressure. Applicable Standards and Reference Standard: See pages 24 and 25. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 09:00:0
10、8 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*8342 Bb H 4933608 0022375 4 H _ 2 B 8342-1986 Lubricating system) (symbol) Feed-oil type (LI Non-feed- oil type (FI Humber 3r stages (symbol) Single- stage (1) TWO- (2) stages Table 1. Classification of Air Compresso
11、r :Rated output() of electric driving motor kW and symbol 0.2 M 0.4 M 0.75 M 1.5 M 2.2 M 3.7 M 5.5 M 7.5 M 11 M 0.4 M 0.75 M 1.5 M 2.2 M 3.7 M 5.5 M 7.5 M 11 M Mnx. presliure o coniprcsmr . kPn Ikgf/cm*) and symbol 2002 5005) 2002 5005) 500 51 500 (5) SOO (5) 500 (51 500 S SOO 5) 500 5 700 7) 700 (7
12、) 700 (7) 700 7 700 (7) 700 (7) 700 7j 700 7 700 7 1 o00 (10) 1 o00 (10) 1 o00 (10) 1 o00 lo) 1 o00 lo 1 O00 lo 1 000 10) 1 O00 (10) 1 O00 (10) 700 7 1 O00 10) 1 400 14) 7007) lo00lO) 1400 (14) 7007) lo00 (10) 140014) 7007) loo0 lo 140014) 700 (7) lo00 lo) 1400 14) 700 (7) 1 o00 lo 1 400 14) 7007 lO
13、OO(10) 140014 700 7) 1 o00 (10) 1400 14 Note (3) Where an internal combustion engine is used as the driving prime mover, it shall have a continuous rating that is equivalent to the rated output of the electric driving motor indicated in Table 1. Remarks 1. The symbol in the case where an internal co
14、mbustion engine is used as the driving prime mover shall be appended with “E“ behind the rated output, Example: 2.2 E, 3.7 E 2. The numerical values in 1 shall be used for the symbol of the maximum pressure. 3. Rated Voltage and Rated Frequency The rated voltage shall be not more than 250 V single-p
15、hase ac. or not more than 600 V 3-phase a.c., and the rated frequency shall be 50 Hz or 60 Hz, or 50 Hz and 60 Hz for common use, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 09:00:08 MD
16、TNo reproduction or networking permitted without license from IHS -,-,- JIS B*?,342 86 4933b08 0022376 b S 3. B 8342-1986 4, Performance. 4 , l Air Volume The a i r volumes of the compressors shall be the values conversed into those under the suction conditions and be not less than the values indica
17、ted i n Table 2. Provided that the air volume i n the case, where the maximum pressure is a pressure of intermediate values, shall be equal to or more than the value calculated by the rule of proportional calculation, Number of stage Single - stage Two- stages lated out ,Ut of slectric Irivin g ioto
18、r (kW) 0.2 0.4 0.75 1 . 5 2.2 3 . 7 5 . 5 7.5 11 0 . 4 0.75 1 . 5 2.2 3.7 5 . 5 7 . 5 11 Table 2. Air Volume Unit: l/min For 200 kPa (2 kgflcmal max; pressure of compressor 40 (38) 83 (79) For 500 kPa (5 kgflcmz) max, pressure of compressor 20 (19) 40 (38) 85 (81) 182 (173) 270 (256) 470 (446) 700 (
19、665) 940 (890) 1 390 (1 320) Air volume (9 For 700 kPa 7 kgf /cma 1 nax, pressure D f compressor 15 (14) 32 (30) 67 (W 149 (142) 230 (218) 390 (370) 600 (570) 790 (750) 1160 (i 100) 4 1 78 160 250 430 660 870 1 230 For 1000 kPa (10 kgf/cm2) max. pressure of compressor - 23 (21) 50 (48) 114 (109) 175
20、 (166) 310 (294) 490 (465) 640 (610) 935 (890) 36 66 140 200 340 510 690 1 O10 For 1400 kPa I14 kgflcmll max. pressure of compressor - 29 57 118 175 295 440 600 880 Note (4) The value at 60 Hz shall be taken for the compressor for common use of 50 Hz and 60 Hz. Remark: The numerical values in ( ) gi
21、ve the air volume i n the cases of the compressors of non-feed-oil type, 4,2 Fill-up Time( 5, The fill-up time shall be not more than the values indicated in Table 3. the fill-up time shall be equal to or less than the value calculated by the rule of proportional calculation, Note ( 5, The time requ
22、ired to fill-up the tank when the compressor is Provided that where the maximum pressure is an intermediate pressure, tested in accordance with Appendix 3.1 of JIS B 8341. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Ber
23、nie Not for Resale, 03/14/2007 09:00:08 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 B 8342-1986 Table 3. Fill-up Time Unit: min Number of stages Single- eta Two- stages iated out- ,ut of . !lec t ric iriving notor kW) 0.2 0.4 0.75 1.5 2.2 3.7 5.5 7.5 11 0.4 0.75 1.5 2
24、.2 3.7 5.5 7.5 11 For 200 kPa E2 kgf/cm2 1 max. pressure of aompressor 4.54 (4.77) 2.19 (2.30) - Fill-up time per 100 I of air tank volume For 500 kPa E5 kgf/cm2) max, pressure of compressor 22.6 (23.9) 11.2 (11.9) 5.34 (5.61) 2.49 (2.74) 1.68 (1.77) 0.97 (1.01) 0.65 (0.69) 0 . 4 8 (0.51) 0.33 (0.34
25、) For 700 kPa (7 kd/cm21 - max. pressure of compressor 42.3 (45.4) 19.8 (21.2) 9.49 (9.88) 4.27 (4.46) 2.76 (2.91) 1.63 (1.71) 1-06 (1.11) 0.80 (0.85) 0.55 (0.58) 15.5 8.15 3.97 2.54 1.48 0.96 0.73 0.52 For 1000 kPa El0 kgf/cm2) max. pressure of compressor 39.3 (43.2) 18.2 (18.9) 7.96 (8.30) 5.19 (5
26、.46) 2.93 (3.08) 1.85 (1.95) 1.42 (1.49) 0.97 (1.02) 25.2 13.8 6.49 4.54 2.67 1.78 1.32 0.90 For 1400 kPa (14 kgflcm2) max , pressure of compressor - 43.8 22.3 10,8 7.26 4.31 2.89 2.12 1.44 Remarks 1 . The fill-up time for whole volume of an individual air tank shall be calculated i n proportion to
27、its volume. 2. The ( ) shows the case of non-feed o i l type. 4.3 Shaft Power The shaft power for the compressor at the maximum pressure shall not exceed the rated output of the electric driving motor, Provide that, the values of the full load current of a single-phase motor and squirrel-cage three-
28、phase induction motor of 3 k W or less capacity are acceptable, if they are not more than 110 % of the value of the marked full load currents. 4.4 Variation of Supply Voltage The compressor shall be able to run without trouble in practical service irrespective of the variation of k 10 % of the rated
29、 voltage in service voltage of the motor. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 09:00:08 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 B 8342-1986 5.
30、 Construction e 5.1 Constitution of Compressor The compressor shall have the construction as shown in Attached Figs. 1 to 7 and be constituted of the following main parts. Compressor main body Electric motor or internal combustion engine Air tank (including safety device) Drive unit Running control
31、apparatus Bed Remarks 1. , A portable compressor shall completely be provided with all of the parts above. However, a compressor of 0.75 k W or less may be not equipped with the air tank, 2, A stationary compressor may be not equipped with the air tank and bed, if so specified by the orderer. 3. The
32、 electric motor or internal combustion engine may be not equipped. 5.2 Construction in General The construction in general of the compressor shall comply with the following: (4) The parts subjected to air pressure shall have sufficient strength. Each part shall not easily cause mechanical or electri
33、cal failures, In service, the compressors shall be able to run normally without remarkable vibratioyis . The internal threads in the fitting parts for pipes and air hoses, and for the safety valve, cock, plug and the like shall conform to JIS B 0202 or JIS B 0203. Earthing shall be easily practicabl
34、e from the electric motor or any metal part connected thereto. The pressure gauge shall be of the grade 1.5 of JIS B 7505 or one equal or superior to this in precision in using it, The V-belt shall be as specified in JIS K 6323 or JIS K 6368, The rotary part of V-belt pulley, V-belt and the like sha
35、ll be equipped with the safety cover. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 09:00:08 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*8342 8b E 49
36、33608 002.2179 1 E Every part shall have interchangeability and the renewal of any part shall cause no remarkable change in performance. No particularly thin part shall be present in the cylinder wall or cylhder cover that is directly subjected to pressure. The compressor of feed-oil type main body
37、shall be provided with an oiling port at suitable part to allow to enter easily lubricating oil, In addition, it shall be provided with an oil level gauge for the detection of oil quantity, and an o i l drain, The crankcase shall have sufficient strength, and in the case of feed-oil type, it shall h
38、ave a bottom that serves as an oil pan and shall be able to shut off oil leak and intrusion of dust in the outside air. The lubricating oil pan shall have enough capacity for a continuous operation for at least 48 h without refeeding, The centre lines of right- and left-hand side bearings shall be i
39、n the same horizontal line and parallel to the cylinder-mounting plane, The crankshaft shall have sufficient strength, and the surfaces of its pins shall be finished by grinding or by any other method that is not less effective than the former to a surface roughness not lower than 3 . 2 Z of JIS B 0
40、601. Further, the centre lines of the crankpins shall be parallel to the centre line of the crankshaft journals. The bearings shall be of plain or rolling type, shall withstand the axle loads and shall stand long term use, The crankshaft shall not play excessively in the axial direction, The piston
41、shall as a general rule be provided with not less than three piston rings and the piston-ring grooves shall be in precise finish. The piston pin shall as a general rule have a surface hardness of HRC 52 to 65, and shall be provided with clips or protectors to prevent it from touching with the cylind
42、er wall inside. Its surface shall be finished by grinding or by any other method that is not less effective than the former to a surface roughness not lower than 0.8 Z, However, for a pin that utilizes cast iron holes for pin, its surface hardness shall be not lower than HRC 58. The cylinder shll be
43、 airtight and wearproof. Its outside shall be constructed for cooling purpose, and its inside surface shall be finished to a surface roughness of.about 3.2 Z or superior in JIS B 0601. Futhermore, in the case of the compressor of non-feed-oil type, the cylinder shall be subjected to the rust prevent
44、ive treatment, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 09:00:08 MDTNo reproduction or networking permitted without license from IHS -,-,- i J I S B*8342 8 b 4933608 0022L80 8 0 I 7
45、B 8342-3.986 The minimum wall thickness of the cylinder shall be 4 mm, when tested in accordance with the method specified in 8.2, no part of it shows leaks, deformation etc. The cylinder cover shall withstand the same test hydraulic pressure as the cylinder and its outside shall be constructed for
46、cooling purpose. When a gasket is inserted between the cyinder and cylinder cover, it shall be uniform i n thickness, heat resistant, oilproof and pressure resistant. A two-stage compressor shall be provided with an intercooler between the first- and second-stage cylinders to remove the heat produce
47、d in the first stage and to lower the temperature of compressed air. A two-stage compressor shall be provided with a safety valve before the suction port of the second-stage cylinder for ensuring the safety of the main body by preventing the abnormal pressure rise i n the first-stage cylinder, or be
48、 so constructed that the compressor can resist that pressure b The belt pulley shall serve as a flywheel and shall gerform cooling of the outer wall of the cylinder when it is revolved cooling may be carried out by a separate fan annexed to the compressor I However the The suction filter shall be little i n suction resistance and large in dustproof effect The distance between thecentre lines of bearings of large end of connecting rod and small end