簡(jiǎn) 介
膜盒壓力表采用膜盒作為測(cè)壓力敏感元件。測(cè)量對(duì)銅合金不起腐蝕作用、無(wú)爆炸危險(xiǎn)的氣體的微壓和真空，廣泛應(yīng)用于鍋爐通風(fēng)、氣體管道、燃燒裝置及其它類(lèi)似設(shè)備上。
不銹鋼膜盒壓力表在普通膜盒壓力表的基礎(chǔ)上導(dǎo)壓系統(tǒng)及外殼均采用了不銹鋼材料。應(yīng)用于耐腐蝕要求較高的工藝流程中對(duì)各種氣體介質(zhì)的壓力和真空的測(cè)量。
在膜盒壓力表的基礎(chǔ)上內(nèi)部填充阻尼液和緩沖裝置即成耐震膜盒壓力表具有良好的耐震性能；適用于被測(cè)介質(zhì)的壓力有強(qiáng)烈脈沖變化或壓力沖擊和在生產(chǎn)工藝中經(jīng)常突然卸荷的場(chǎng)合，以及環(huán)境震動(dòng)較大的場(chǎng)所。
膜盒壓力表與相應(yīng)的電氣器件配套使用，即成為電接點(diǎn)膜盒壓力表，可達(dá)到對(duì)被測(cè)壓力系統(tǒng)實(shí)現(xiàn)預(yù)先設(shè)定的zui大或zui小壓力值的雙位自動(dòng)控制和發(fā)信（報(bào)警）的目的。
我公司生產(chǎn)的YE-70膜盒壓力表批量出口美國(guó)。
Brief Introduction
Theca box pressure gauges are used to measure micro pressure and negative pressure of gas that has no danger of explosion and does not erode alloy. Adopting theca box as sense organ, the gauges are widely applied to boiler ventilating, gas pipeline, burning device and other similar devices.
Based on common theca box pressure gauges, stainless theca box pressure gauges introduce stainless material uesd in pressure leading system and crust. The gauges are not only suitable for measuring micro pressure and negative pressure of various gas medium in craftwork flow, which require higher performance of corrosion resistance, but also can be applied to boiler ventilating, gas pipeline, burning device and other similar devices.
構(gòu)成示意圖
結(jié)構(gòu)原理 Structure
儀表由導(dǎo)壓系統(tǒng)（包括接頭、膜盒等）、傳動(dòng)機(jī)構(gòu)、指示裝置、和外殼等組成（電接點(diǎn)膜盒壓力表還包括磁助電接點(diǎn)裝置、調(diào)節(jié)裝置及航空插頭等）。
當(dāng)被測(cè)介質(zhì)作用于膜盒時(shí)，其管端產(chǎn)生相應(yīng)的彈性變形——位移，經(jīng)傳動(dòng)機(jī)構(gòu)放大后，由指示裝置在度盤(pán)上把被測(cè)壓力指示出來(lái)。
電接點(diǎn)膜盒壓力表在指示裝置將被測(cè)壓力顯示在儀表度盤(pán)上的同時(shí)，指針帶動(dòng)電接點(diǎn)裝置的活動(dòng)觸點(diǎn)與設(shè)定指針上的觸頭（上限或下限）相接觸的瞬時(shí)，控制系統(tǒng)接通或斷開(kāi)電路，以達(dá)到自動(dòng)控制和發(fā)信報(bào)警的目的。
The meter is composed of pressure leading system （including joint and theca box, etc）, driving framework, indicating device and crust.（electric contact theca box dressart meter in dude,magnetism of electric conacd）
When theca box is operated by measured medium, its end will produce elasticity distortiondisplacement. The displacement is enlarged by driving machine, and measured pressure value will be shown up by indicating device on meter dial.
When indicating device installed at electric contact theca box pressure meter shows the measured pressure value on meter dial, the pointer will simultaneously drive active contactor of electric contact device to meet the contactor （upper limit or lower limit） installed at the pointer. Thus control system will switch on or cut off circuit, and both aims of autocontrol and signal sending are all achieved
型號(hào)表示
標(biāo)記示例：YJE-100-ZT 產(chǎn)品電腦編碼為0030053402
膜盒電接點(diǎn)壓力表，表殼公稱(chēng)直徑100mm，安裝形式為軸向前邊，軸向盤(pán)裝式。詳細(xì)電腦編碼參照《膜盒壓力系列儀表選型指南》
Marking in stance：YJE-100-ZT Production computer coding：0030053402
Electric contact theca box pressure meter , meter dials nominal diameter is 100mm, installation mode is axial front, and installing mode is axial plate mounting. For detail production computer coding information, please refer to “Guide for type selection of theca box series instruments and meters”
主要技術(shù)參數(shù)
- 度：1.6級(jí)、2.5級(jí)
- 使用環(huán)境溫度：-25℃~55℃，相對(duì)濕度不大于85%
- 溫度影響：不大于0.4%/10℃
- 抗工作環(huán)境振動(dòng)：V.H.3
V.H.4 （耐震膜盒壓力表）
Principal technical parameters
- Accuracy: 1.6 、2.5 grades
- Temperature of applicable circumstance: -25℃~55℃,relative
- humidity not greater than 85%
- Temperature influence: no more than 0.4%/10℃
- Resistance against vibration of working environment: V.H. 3
V.H.4（shockproof theca box pressure meter
型號(hào)規(guī)格
| 型號(hào) | 標(biāo)度范圍 Measuring ranges（kPa） | 度 Accuracy |
| 壓力 Pressure | 真空 Vacuum | 壓力真空（聯(lián)程） Pressure vacuum （linkage） |
| YJE-40 YJE-50 YJE-60 YJE-70 YJE-75 YJE-100 YJE-150 | 0～1.6 0～2.5 0～4 0～6 0～10 0～16 0～25 0～40 0～60 | -1.6～0 -2.5～0 -4～0 -6～0 -10～0 -16～0 -25～0 -40～0 -60～0 | -0.8～+0.8 -1.2～+1.2 -2～2 -3～+3 -5～+5 -8～+8 -12～+12 -20～+20 -30～+30 | 1.6、2.5 |
材質(zhì)說(shuō)明
| 零件名稱(chēng) | 材質(zhì)名稱(chēng) |
| 普通膜盒壓力表 | 不銹鋼膜盒壓力表 |
| 接液材質(zhì) | 黃銅HPb59-1 | 1Cr18Ni9不銹鋼、304不銹鋼、316L不銹鋼 |
| 敏感元件 （膜盒） | 鈹青銅 QBe2 | 316L不銹鋼 |
| 外殼 | 鋼板08F | 1Cr18Ni9不銹鋼、304不銹鋼 |
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