GOST R 8 728-2010 State system for ensuring the uniformity of measurements Estimation of errors of measurements of thermal energy and weight of the heat-carrier of water systems of.pdf

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1、 8.7282010 27 2002 . 184- , 1.02004 . 1 - . . ( . . -) 2 3 23 2010 . 994-4 - , - . () . - , , 2012 , - - II 8.72820101 12 13 14 .25 .3 () - .6 () - 9 14 8.7282010III State system for ensuring the uniformity of measurements. Estimation of errors of measurementsof thermal energy and weight of the heat

2、-carrier in water systems of the heat supply 201207011 - .2 : 8.6422008 . - . 516492000 . 8.00984 . - - - , 1 , , . (), - () . , , - , , .3 :3.1 : , - .3.2 : , / .3.3 ; : , , () , .1 8.72820103.43.5 : , - .3.6 : , - .3.7 : , - , .3.84 4.1 Q - 1, 2, 3 4 : :Q = mh11dc116c242 mh22dc116c242 mh. .dc116c2

3、42; (1)Q = mh m mh21 2 1 2 1 .)d )d d( ;hmhc116c116c116c242c242c242c43c45 (2)Q = mh m mh11 2 1 2 2 .)d )d d( ;hmhc116c116c116c242c242 c242c43c45 (3)Q = mh m mh21 2 31 .)d d d(;hhc116c116 c116c242c242c242c43c45 (4)Q = mh m mh11 2 32 .)d d dhhc116c116 c116c242c242c242c43c45 (5)c68 = mm mm12 12dd )dc11

4、6c116 c116c242c242c242c61c45( , (6) m1, m2, m3, m. , - ( ) (m3= m1 m2 ), (m.= m1 m2 ), ;c116 ;h1, h2 h. , - , ;c68 , . :Q = mh(,12)dh c116c242(7) m . :Q = mhdc116c242, (8) m h .4.2 51649 8.642.2 8.7282010 : , , , . 2669185, 40 : / , , () , -. 516492000, 3.9 , -, 51649 , . . 1 ,. 1 , % c177 (2+4c68t/

5、c68t + 0,01Gmax/G) c177 (3+4c68t/c68t + 0,02Gmax/G) c177 (4+4c68t/c68t + 0,05Gmax/G) :Gmax , 3/;G , 3/;c68t ,; : 1 , 2 , 3 ; 2 , 3 , 5 - ; 3 , 5 , 10 ;c68t , , .5 5.1 - 8.009. . - - 5.5.2 - ( - , ). 0,95.5.2.1 : 1 , 2 - 3 13, - 2 , , 2. ( ) c100Q c100Q = c177 1,1()( )( ),QQ Q Q Q QQQ11233223c215c43c

6、215c43c215c43c45c100c100 c100. .1.Q(9) Q1= c1141G1(h1 h2); (10)Q3= c1143G3h2; (11)Q.= c114.G.h., (12)G1, G3 G. , - h2 c h.,-, 3/;c100Q1 , %, 1 . c100Q1 -. - ( ) (. 4, 1) 3 8.7282010 ( ). c100Q3 h2 (11)c100Q3= c100c114 c100 c100323222c43c43Gh.(13) c100Q. - (12)c100Q.= c100c114 c100 c100. . .222c43c43

7、Gh.(14) (10), (11) (12) h c114 - 6, 7, - 1. c100mi -c100mi= c177 1,1 c100c114 c100iiG22c43 ,(15) i = 1,2,3;c100c114i= c177c182c114c182c114c182c114c182c114ttiic68c68c230c232c231c231c231c231c246c248c247c247c247c247c43c230c232c231c231c231c231c246c248c247c247c247c24722PPii.(16) - c100hi= c177c182c182c11

8、4c182c182htthhiic68c68c230c232c231c231c231c231c246c248c247c247c247c247c43c230c232c231c231c231c231c246c248c247c247c247c24722PPii.(17) (16) (17):c182c114 c182/ t, c182c114 c182/ P, c182c182ht/ , c182c182hP/ - t = ti P = Pi( 1 6, 7 , -);c68ti c68Pi -.5.2.2 , 3 G3 , - c100Q c100Q = c177 1,1()( )( ),QQ Q

9、Q Q QQQ11222222c215c43c215c43c215c45c45c100c100 c100. .1.(Q(18) Q1= c1141G1h1; (19)Q2=(c1141G1 c1142G2)h2; (20)Q.= m.h.= c114.G.h.; (21)c100Q1 , %, 1 :4 8.7282010c100Q2= c177()( )()c114 c100c114c100 c114 c100c114c100c114c114c10011 1212222 2222211 2 2222GGG GGGhc43c43 c43c45c43 ;(22)c100Q.= c177 ()(

10、)().c100c114 c100 c100. . .222c43c43Gh(23) (15), i =1,2. c100m3, - , c100m3= c177 1,1 c100c114c100c10032 112222122c43c43c215c215c45()( )().GG G GGG(24)5 8.7282010 () .1 4 (1)(5) - (1). . (5) Q :Q = m1(h1 h2)+m3h2 m.h. (.1) : 1, - 2 3. 13, 2 . - ( , ) . (.1) :Q1= m1(h1 h2)=c1141G1(h1 h2); (.2)Q3= m3h2= c1143G3h2; (.3)Q.= m.h.= c114.G.h.; (.4)Q = Q1+ Q3 Q. (A.5), Q1 - m1 h1 h2, ; Q3- ( ) m3 h2, Q. m. h. ,