裝配熱電偶
工業(yè)用裝配式熱電偶作為測量溫度的傳感器,通常和顯示儀表、記錄儀表和電子調(diào)節(jié)器配套使用。它可以直接測量各種生產(chǎn)過程中從0℃~1800℃范圍內(nèi)的液體、蒸汽和氣體介質(zhì)以及固體的表面溫度。
根據(jù)國家規(guī)定,我廠從1987年起開始生產(chǎn)符合IEC標(biāo)準(zhǔn)分度號(hào)的鉑銠30—鉑銠6—鉑銠10—鉑、鎳鉻—鎳硅、鎳鉻—銅鎳、銅-銅鎳、鐵-銅鎳等型式熱電偶。
□主要技術(shù)指標(biāo)
◆溫度測量范圍和允許誤差
熱電偶類別 | 代號(hào) | 分度號(hào) | 測量范圍℃ | 允許偏差△t ℃ |
鉑銠30—鉑銠6 | WRR | B | 0~800 | ±1.5℃或±0.25%t |
鉑銠10—鉑 | WRP | S | 0~1600 | ±1.5℃或±0.25%t |
鎳鉻-鎳硅 | WRN | K | 0~1300 | ±2.5℃或±0.75%t |
鎳鉻-銅鎳 | WRE | E | 0~800 | ±2.5℃或±0.75%t |
◆ 熱響應(yīng)時(shí)間
在溫度出現(xiàn)階躍變化時(shí),熱電偶的輸出變化至相當(dāng)于該變化的50%,所需要的時(shí)間稱為熱響應(yīng)時(shí)間,用t0.5表示
□型號(hào)表示
WR□-□□□
W | 溫度儀表 |
R | 熱電偶 |
□熱電偶材料 | R)鉑銠30-鉑銠6 |
P)鉑銠10-鉑 |
N)鎳鉻-鎳硅 |
E)鎳鉻-銅鎳 (鎳鉻-康銅) |
□安裝固定形式 | 1)無固定式裝置式 |
2)固定螺紋式 |
3)活動(dòng)式法蘭 |
4)固定法蘭式 |
5)活動(dòng)法蘭角尺形式 |
6)固定螺紋錐形 保護(hù)管式 |
□ 接線盒形式 | 2)防濺式 |
3)防水式 |
4)隔爆式 |
□設(shè)計(jì)序號(hào) | 0)ø16mm保護(hù)管 |
1)ø25mm保護(hù)管(雙層套管) |
2)ø16mm高鋁質(zhì)管(單層套管) |
3)ø20mm高鋁質(zhì)管 |
◆熱電偶公稱壓力
一般是指在室溫情況下保護(hù)管所能承受的靜態(tài)外壓而不破裂。實(shí)際上,容許工作壓力不僅與保護(hù)管材料、直徑壁厚有關(guān),還與其結(jié)構(gòu)形式,安裝方法、置入深度以及被測介質(zhì)的流速和種類等有關(guān)。
◆熱電偶zui小置入深度
應(yīng)不小于其保護(hù)管外徑的8~10倍(特殊產(chǎn)品例外)。
◆熱電偶絕緣電阻(常溫)
常溫絕緣電阻的試驗(yàn)電壓為直流500V±50V,測量常溫絕緣電阻的大氣條件為溫度15~35℃,相對(duì)濕度45%,大氣壓力86~106kPa。 a.對(duì)于長度超過1米的熱電偶它的常溫絕緣電阻值與其長度的乘積應(yīng)不小于100MΩ。M。
即Rr.L≥100 MΩ。M L>1m 式中:Rr-熱電偶的長度,m b.對(duì)于長度等于或不足1米的熱電偶,它的常溫絕緣電阻值應(yīng)不小于100 MΩ
◆上限溫度絕緣電阻
熱電偶的上限溫度絕緣電阻應(yīng)不小于下表現(xiàn)定:
上限溫度tm℃ | 試驗(yàn)溫度t℃ | 電阻值MΩ |
100≤tm<300 | t=tm | 10 |
300≤tm<500 | t=tm | 2 |
500≤tm<850 | t=tm | 0.5 |
850≤tm<1000 | t=tm | 0.08 |
1000≤tm<1300 | t=tm | 0.02 |
tm>1300 | t=1300 | 0.02 |
◆工作原理
熱電偶的工作原理是:兩種不同成分的導(dǎo)體兩端經(jīng)焊接、形成回路,直接測溫端叫測量端,接線端子端叫參比端。當(dāng)測量端和參比端存在溫差時(shí),就會(huì)在回路中產(chǎn)生熱電流,接上顯示儀表,儀表上就指示出熱電偶,產(chǎn)生的熱電動(dòng)勢的對(duì)應(yīng)溫度值。 熱電偶的熱電動(dòng)勢將隨著測量端溫度升高而增長,熱電動(dòng)勢的大小只和熱電偶導(dǎo)體材質(zhì)以及兩端溫差有關(guān),和熱電極的長度、直徑無關(guān)。
裝配式熱電偶主要由接線盒、保護(hù)管、絕緣套管、接線端子、熱電極組成基本結(jié)構(gòu),并配以各種安裝固定裝置組成。 備注:關(guān)于本型號(hào)具體技術(shù)要求(如長度、螺紋或法蘭接等)可與公司洽詢。,
熱電偶:
裝配式不銹鋼接線盒熱電偶WRR-120B,WRR-121B,WRR2-120B,WRR2-121B,WRP-120B,WRP-121B,WRP2-120B,WRP2-121B,WRN-122B,WRN-123B,WRN2-123B,WRR-130B,WRR-131B,WRR2-130B,WRR2-131B,WRP-130B,WRP-131B,WRP2-130B,WRP2-131B,WRN-133B,WRN2-133B,WRN-130B,WRN2-130B,WRE-130B,WRE2-130B,WRN-230B,WRN2-230B,WRE-230B, 表面熱電偶溫度計(jì)WRE2-230B,WRN-220B,WRN-220AB,WRN2-220B,WRN2-220AB,WRE-220B,WRE-220AB,WRE2-220B,WRE2-220AB,WRN-230B,WRN2-230B,WRE-230B,WRE2-230B,WRN-330B,WRN2-330B,WRE-330B,WRE2-330B,WRN-430B,WRN2-430B,WRE-430B,WRE2-430B,WRN-420B,WRN-420AB,WRN2-420B,WRE-420B,WRE-420AB,WRE2-420B,WRN-430B,WRN2-430B,WRE-430B,WRE2-430B,WRN-530B,鎧裝熱電偶WRN2-530B,WRE-530B,WRE2-530B,WRN-631B,WRN2-6310B,WRE-631B,WRE2-631B,WRN-620, WRN-621B,WRN-620A, WRN-621AB,WRN2-620, WRN2-621B,WRE-621B,WRE-621AB,WRE2-621B,WRN-631B,WRN2-631B,WRE-631B,表面熱電偶WRE2-631B,WRN-624B,WRN-625B,WRE-624B,WRE-625B,WRN-420B,WRN-430B,WRN2-420B,WRN2-430B,WRE-420B,WRE-430B,WRE2-420B,WRE2-430B,WRN-420C,WRN-430C,WRN2-420C,WRN2-430C,WRE-420C,WRE-430C,WRE2-420C,WRE2-430C,WRN-420D,小接線盒鎧裝熱電偶WRN-430D,WRN2-420D,WRN2-430D,WRE-420D,WRE-430D,WRE2-420D,WRE2-430D,WZP-420B,WZP-421B,WZP -430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZC-420B,WZC-430B,WZP -420C,WZP -421C,WZP -430C,高溫耐磨熱電偶WZP -431C,WZP2-420C,WZP2-421C,WZP2-430C,WZP2-431C,WZC-420C,WZC-430C,WZP -420D,WZP -421D,WZP -430D,WZP -431D,WZP2-420D,WZP2-421D,WZP2-430D,WZP2-431D,WZC-420D,WZC-430D,WRE-892M,WRE-891M,WRE-890M,WREK-101,WREK-121,WREK-131,WREK-181,WREK-187,WREK-191,WREK-102,WREK-122,WREK-132,鉑銠10-鉑二等標(biāo)準(zhǔn)熱電偶WREK-182,WREK-188,WREK-192,WREK2-121,WREK2-131,WREK2-122,WREK2-132,WRNK-101,WRNK-121,WRNK-131,WRNK-181,WRNK-187,WRNK-191,WRNK-102,WRNK-122,WRNK-132,WRNK-182,WRNK-188,WRNK-192,WRNK2-121,WRNK2-131,WRNK2-122,WRNK2-132,WRCK-101,WRCK-121,WRCK-131,WRCK-181,WRCK-187,吹氣型熱電偶WRCK-191,WRCK-102,WRCK-122,WRCK-132,WRCK-182,WRCK-188,WRCK-192,WRCK2-121,WRCK2-131,WRCK2-122,WRCK2-132,WREK-201,WREK-221,WREK-231,WREK-281,WREK-291,WREK-202,WREK-222,WREK-232,WREK-282,WREK-292,WREK2-221,WREK2-231,WREK2-222,WREK2-232,WRNK-201,WRNK-221,WRNK-231,WRNK-281,WRNK-291,WRNK-202,WRNK-222,WRNK-232,WRNK-282,WRNK-292,WRNK2-221,WRNK2-231,WRNK2-222,WRNK2-232,WRCK-201, WRCK-221, WRCK-231, 拱頂熱電偶WRCK-281, WRCK-291, WRCK-202, WRCK-222, WRCK-232, WRCK-282, WRCK-292. WRCK2-221, WRCK2-231, WRCK2-222, WRCK2-232WREK-301, WREK-321, WREK-331, WREK-381, WREK-387, WREK-391, WREK-302, WREK-322, WREK-332, WREK-382, WREK-388, WREK2-321, WREK2-331, WREK2-322 WREK2-332 ,WRNK-301,
隔爆本安型帶熱電偶電阻,SBWR-4270/440D,WZP2-892室內(nèi)用雙支鉑熱電阻,WREK-440,WRE2-740,WRN2-740,WRN2-440A,WRNK-240,WREK2-240,WRNK-841n*i,WRNK-842n*i,WRE-240A,WREK-841n*I,WREK-842n*i,WRN2-240A,WREK2-440,WRN-640,WRN2-640,WRN-740,WRE-440A,WRNK-440,WRE-640,WRE2-640,WREK-842n*D,WZP-64SB,SBWR-4280/8413KD,XMTA-100,MWFT-1,MWFT-2,MWFT-3,WZP-120B,WZP-121B,WZP-130B,WZP-131B,WZP2-120B,WZP2-121B,WZP2-130B,WZP2-131B,WZC-120B,WZC-130B,WZP-220B,WZP-221B,
WZP-230B,WZP-231B,WZP2-220B,WZP2-221B,WZP2-230B,WZP2-231B,WZP-220ABWZP2-220AB,WZC-220B,WZC-120B,電站測溫用熱電阻WZC-130B,.WZP-220B,WZP-221B,WZP-230B,WZP-231B,WZP2-220B,WZP2-221B,.WZP2-230B,WZP2-231B,WZP-220AB,WZP2-220AB。WZC-220B,WZC-230B,WZC-220AB,WZP-320B,WZP-321B,WZP-330B,WZP-331B,WZP2-320B,WZP2-321B,WZP2-330B,WZP2-330B,WZC-320B,WZC-320B,WZP-420B,.WZP-421B,WZP-430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZP-42AB,WZP2-42AB,WZC-420B,WZC-430B,WZP-420B,.WZP-421B,WZP-430B,WZP-430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZP-42AB,WZP2-42AB,WZP-420B,WZC-430B,WZP-621B,WZP-621AB,WZP-631B,..WZP2 -621B,WZP2 -621B,WZP2 -631B,WZP-621B,.WZP-631B,WZP-621B,WZP2 -631B,WZP-621AB,WZP2-621AB,WZP-002,WZP-003,WZP-003A,WZCM-201,.WZPM-201,WZPM-201,WZP-270S,WZP-26S,WZP-236SB,薄膜鉑熱電阻WZP2-236SB,WZP-1312AB,WZP2-1312AB,WZP-212AB,.WZP2-212AB,WZP-3312AB,WZP2-3312AB,WZP-4312AB,WZP2-4312AB,WZP-6312AB,WZPK-103U,WZPK-104U,WZPK-105U,WZPK-106U,WZPK-106U,WZPK-204U,WZPK-205U,WZPK-206U,WZPK-303U,WZPK-304U,WZPK-305U,WZPK-306U,WZPK-403U,WZPK-404U,WZPK-405U,WZPK-406U,WZPK-503U,WZPK-504U,WZPK-505U,WZPK-506U,WZPK-133U,WZPK-134U,.WZPK-135U,WZPK-136U,.WZPK-233U,WZPK-234U,WZPK-235U,WZPK-236U,WZPK-333U,WZPK-334U,WZPK-335U,WZPK-336U,WZPK-433U,WZPK-434U,WZPK-435U,WZPK-436U,WZPK-533U,WZPK-534U,WZPK-535U,WZPK-536U,WZPK-123UWZPK-124U,裝配式不銹鋼接線盒鉑電阻WZPK-125U,WZPK-126U,.WZPK-223U,WZPK-224U,WZPK-225U,WZPK-226U,WZPK-323U,WZPK-324U,WZPK-325U,WZPK-326U,WZPK-423U,WZPK-424U,WZPK-425U,WZPK-426U,WZPK-523U,WZPK-524U,WZPK-525U,WZPK-526U,WZPK-163U,WZPK-164U,WZPK-165U,WZPK-166U,WZPK-263U,WZPK-264U,WZPK-265U,WZPK-266U,WZPK-363U,WZPK-364U,WZPK-365U,WZPK-366U,WZPK-463U,WZPK-464U,WZPK-465U,鎧裝鉑電阻WZPK-466U,WZPK-563U,WZPK-564U,WZPK-565U,WZPK-566U,.WZPK-173U,WZPK-174U,WZPK-175U,WZPK-176U,WZPK-273U,WZPK-274U,WZPK-275U,WZPK-276U,WZPK-373U,WZPK-374U,WZPK-375U,WZPK-376U,WZPK-473U,WZPK-474U,WZPK-475U,WZPK-476U,WZPK-573U,WZPK-574U,WZPK-575U,WZPK-576U,WZPK-103S,WZPK-104S,WZPK-105S,WZPK-106S,WZPK2-105SA,WZPK2-106SA,WZPK-203S,WZPK-204S,WZPK-205S,.WZPK-206S,WZPK2-205SA,WZPK2-206SA,WZPK-303S,化工隔爆型熱電阻WZPK-304S,WZPK-305S,WZPK-306S,WZPK2-305SA,.WZPK2306SA,WZPK-403S,WZPK-404S,WZPK-405S,WZPK-406S,WZPK2-405SA,WZPK2406SA,WZPK-503S,WZPK-504S,WZPK-505S,WZPK-506S,WZPK2-505SA,WZPK2506SA,WZPK-123S,WZPK-124S,WZPK-125S,WZPK-126S,WZPK2-125SA,WZPK2-126SA,WZPK-223S,WZPK-224S,WZPK-225S,WZPK-226S,WZPK2-225SA,WPK2-225SA,WZPK2-226SA,WZPK-323S,.WZPK-324S,WZPK-325S,WZPK-326S,WZPK2-325SA,WZPK2326SA,WZPK-423S,WZPK-424S,WZPK-425S,WZPK-426S,WZPK2-425SA,.WZPK2426SA,WZPK-523S,隔爆鉑電阻WZPK-524S,WZPK-525S,WZPK-526S,WZPK2-525SA,WZPK2526SA,WZPK-133S,WZPK-134S,WZPK-135S,WZPK-136S,WZPK2-135SA,WZPK2-136SA,WZPK-233S,WZPK-234S,WZPK-235S,WZPK-236S,WZPK2-235SA,WZPK2-236SA,WZPK-333S,WZPK-334S,WZPK-335S,WZPK-336S,WZPK2-335SA,WZPK2336SA,WZPK-433S,WZPK-434S,WZPK-435S,WZPK-436S,WZPK2-435SA,WZPK2436SA,WZPK-533S,WZPK-534S,WZPK-535S,WZPK-536S,WZPK2-535SA,WZPK2536SA,WZPK-163S,WZPK-164S,WZPK-165S,WZPK-166S,鉑電阻元件WZPK2-165SA,WZPK2-166SA,WZPK-263S,WZPK-264S,WZPK-265S,WZPK-266S,.WZPK2-265SA,WZPK2-266SA,WZPK-363S,WZPK-364S,WZPK-365S,WZPK-366S,WZPK2-365SA,WZPK2366SA,WZPK-463S,WZPK-464S,WZPK-465S,WZPK-466S,WZPK2-465SA,WZPK2466SA,WZPK-563S,WZPK-564S,WZPK-565S,WZPK-566S,WZPK2-565SA,WZPK2566SA,WZPK-173S,WZPK-174S,WZPK-175S,WZPK-176S,WZPK2-175SA,WZPK2-176SA,WZPK-273S,WZPK-274S,WZPK-275S,WZPK-276S,WZPK2-275SA,WZPK2-276SA,WZPK-373S,WZPK-374S,WZPK-375S,WZPK-376S,WZPK2-375SA,WZPK2376SA,WZPK-473S,WZPK-474S,WZPK-475S,WZPK-476S,WZPK2-475SA,WZPK2476SA,WZPK-573S,.WZPK-574S,WZPK-575S,WZPK-576S,WZPK2-575SA,WZPK2576SA,WZPM-101U,WZPM-201U,WZPM—002U,WZPM-102U,WZPM-202U,WZPM—001,WZPM-101S,WZPM-201S,WZPM-002,WZPM-102,WZPM-202,WZPM—301,WZP-011S,WZP-012S,WZP-013S,WZP-014S,WZP-015S,WZP-203S,WZP-205S,WZP-018,WZP-0110,WZP-2012,裝配式鉑電阻(采用引進(jìn)鉑電阻元件)WZP-106S,.WZP2-0110,WZP-1212U,WZP-1312U,WZP-2212U,WZP-2312U,WZP-3212U,WZP-3312U,WZP-4212U,WZP-4312U,WZP-6212U,WZP-6312U,WZP-270U,WZP-270S,WZP-26S,WZP-236S,WZP2-236S,WZP-1212A,WZP2-1212A,WZP-1312A,WZP2-1312A,WZP-2212A,WZP2-2212A,WZP-2312A,WZP2-2312A,WZP-3212A,WZP2-3212A,WZP-3312A,WZP2-3312A,.WZP-4212A,WZP2-4212A,WZP-4312A,WZP2-4312A,.WZP-6212A,WZP2-6212A,WZP-6312A,WZP2-6312A,WZPT-31,WZP-74S,WZP2-74S,WZPK-133S WZPK-134S WZPK-135S WZPK-136S,WZPK-233S,WZPK-234S,裝配式熱電阻WZPK-235S,WZPK-236S ,WPK-333S WZPK-334S,WZPK-335S,WZPK-336S,WZPK-433S WZPK-434S WZPK-435S WZPK-436S WZPK-533S WZPK-534S WZPK-535S WZPK-536S WZP-621 WZP-6312A WZP2-631 WZP2-6212A WZPK2-135SA WZPK2-136SA WZPK2-235SA WZPK2-236SA WZPK2-335SA WZPK2-336SA WZPK2-435SA WZPK2-436SA WZPK2-535SA WZPK2-536SA, WZPK-163S WZPK-164S WZPK-165S WZPK-166S WZPK-263S WZPK264S WZPK-265S WZPK266S WZPK363S WZPK363S WZPK364S WZPK365S WZPK-366S WZPK-463S WZPK-464S WZPK-465S WZPK-466S .WZPK563S WZPK-564S WZPK-565S WZPK-566S WZPK2-165SA WZPK2-166SA WZPK2-265SA WZPK2-266SA WZPK2-365SA WZPK2-366SA WZPK2-465SA WZPK2466SA WZPK-565SA WZPK2-566SA, WZP-235T, WZP2-235TWZP-130-F, WZP-230-F, WZP-330-F, WZP-430-F, WZP 2-130-F, WZP 2-230-F, WZP 2-330-F, WZP 2-430-F, WZP-131-F, WZP-231-F,套管式熱電阻 WZP-331-F, WZP-431-F, WZP 2-131-F, WZP 2-231-F, WZP 2-331-F, .WZP 2-431-F, WZC-130-F, WZC-230-F, WZC-330-F, WZC-430-F, WZPN-130, WZPN-230, WZPN-330, WZPN-430, WZPN 2-130, WZPN 2-230, WZPN 2-330, WZPN 2-430, WZPN-131, WZPN-231, WZPN-331, WZPN-431, WZPN 2-131, WZPN 2-231, .WZPN 2-331, WZPN 2-431, WZPM-631, WZPM2-631, WZCN-130, WZCN-230, WZCN-330, WZCN-430, WZP-2328, WZP2-2328, WZP-93C1, WZP2-93C1, WZP-93C2, WZP2-93C2, WZP-633, WZP2-633, WZP-634, WZP2-634, WZP-4318, WZP2-4318, WZP-731, WZP2-731, WZP-120, WZP-121,耐腐型、耐磨型熱電阻 WZP-130, WZP-131, WZP2-120, WZP2-121, WZP2-130, WZP2-131, WZC-120,WZC-130, WZP-220, WZP-221, WZP-230, .WZP-231, WZP2-220, WZP2-221, WZP2-230,WZP2-231, WZP-221A, WZP2-221A, WZC-220, WZC-230, WZC-220A, WZP-220, WZP-221WZP-230, WZP-231, WZP2-220, WZP2-221, WZP2-230, WZP2-231, WZP-220A, WZP2-220A, WZC-220, WZC-230, WZC-220A, WZP-320, WZP-321, WZP-330, WZP-331, WZP2-320, WZP2-321, WZP2-330, WZP2-331, 可動(dòng)式熱電阻WZC-320, WZC-330, WZP-420, .WZP-421, WZP-430, WZP-431, WZP2-420, WZP2-421, WZP2-430, WZP2-431, WZP-420A, WZP2-420A, WZP-420, WZC-430, WZP-420, WZP-421, WZP-430, WZP-431, WZP2-420, WZP2-421, WZP2-430, WZP2-431, WZP-420A, WZP2-420A, WZC-420. WZC-430, WZP-621, 裝配式薄膜鉑熱電阻WZP-621A, WZP-631, WZP2-621, WZP2-621A, WZP2-631, WZP-621, WZP-631, WZP2-621, WZP2-621, WZP2-631., WZP-621A, WZP2-621A, WZP-002, WZP-003, WZP-003A, WZP-010, WZP2-010, WZP-011, WZP2-011, WZC-010A, WZP-035S, WZC-001, WZC-200, WZP-260, WZP2-260, WZPM-267,WZP-269, WZP2-260, WZC-269, WZP-270, .WZC-270, WZP-280, WZP-260, WZP2-260, WZP-269, WZP2-269, WZC-269, WZC-190, WZC-890J, WZP-892, WZP2-892, WZP2-3212A,WZP2-421B,SBWZ-2481/44SI,WRN-74S,WZPK-426S,WZP-3312A,WZPK2-326SA,WZP2-6312A,WZP-6312A,WZP2-24SA,WZP-24SA,WZP2-6212A,WZP-6212A,.WZP-4312A,WZP-4212A,WZP2-3312A,