第二次工業(yè)革命則是讓人類進(jìn)入了機(jī)械時(shí)代，其能源以石油為主，截止到今天為止，煤炭和石油依然是當(dāng)今世界主要能源。在甘肅慶陽(yáng)發(fā)現(xiàn)特大型油田，其儲(chǔ)量達(dá)50億噸，資源總價(jià)值超4萬(wàn)億，甘肅大油田的發(fā)現(xiàn)，我國(guó)石油的發(fā)展打下了堅(jiān)實(shí)的基礎(chǔ)，讓我國(guó)在進(jìn)口石油之時(shí)有了踏實(shí)的底氣。  蘭州市、嘉峪關(guān)市、金昌市、白銀市、天水市、武威市、張掖市、平?jīng)鍪?、酒泉copy市、慶陽(yáng)市、定西市、隴南市,等地區(qū)的很多油田開(kāi)采上都有廣泛的使用方向,并且在慶陽(yáng)市在2019年發(fā)現(xiàn)的大油田,在不久的將來(lái)會(huì)被廣泛的使用.

立足西北,發(fā)展西北工業(yè)自動(dòng)化使命感的西安華恒儀表制造廠家:目前擁有三大技術(shù)實(shí)力，一是全隔離的智能電路處理單元技術(shù)，二是金屬電容傳感器的制造技術(shù)，三是全系列節(jié)流裝置的多參量技術(shù)。
在突出的液位/流量使用變送器使用有著超過(guò)40年的技術(shù)優(yōu)勢(shì)和使用范疇.
單法蘭液位變送器是一種直接安裝在管道或容器上的現(xiàn)場(chǎng)變送器。單法蘭液位變送器可對(duì)各種容器進(jìn)行液位、密度的準(zhǔn)確測(cè)量，分為平法蘭和插入式法蘭兩種，由于隔離膜片直接與液體介質(zhì)相接觸。無(wú)須將正壓側(cè)用導(dǎo)壓管引出，因此適用于高溫、高粘度、易結(jié)晶、易沉淀和強(qiáng)腐蝕等介質(zhì)的測(cè)量。
單法蘭變送器分插入式和平法蘭兩種，兩種變送器的測(cè)量原理和安裝方式基本相同，但不同的工藝條件對(duì)變送器的測(cè)量數(shù)據(jù)影響是非常大的。以制鹽行業(yè)蒸汽冷凝水閃發(fā)桶為例，A為蒸汽冷凝水進(jìn)口，B為閃發(fā)蒸汽出口，C為單法蘭變送器安裝位置．D為蒸汽冷凝水排水管道，E點(diǎn)為單法蘭變送器的負(fù)壓側(cè)取壓點(diǎn)。
插人式單法蘭液位變送器還是平法蘭液位變送器歸根結(jié)底都屬于差壓變送器，其測(cè)量液位的原理都是通過(guò)公式P=pgh計(jì)算出介質(zhì)在滿液位時(shí)的壓強(qiáng)， 然后將變送器的量程負(fù)遷移后通過(guò)差壓計(jì)算容器內(nèi)液位的高度。所以，只有壓力測(cè)量準(zhǔn)確了，液位才有可能是正確的。插人式單法蘭液位變送器的優(yōu)點(diǎn)是在黏度高，顆粒大的介質(zhì)中不易發(fā)生堵管現(xiàn)象， 但在應(yīng)對(duì)流體沖擊較為嚴(yán)重的環(huán)境中還是顯得有些乏力
單法蘭液位變送器也需要連續(xù)測(cè)量界面和密度，要在衛(wèi)生清潔要求很高的場(chǎng)合使用。如食品、飲料和醫(yī)藥工業(yè)生產(chǎn)中，不僅要求變送器接觸介質(zhì)部位符合衛(wèi)生標(biāo)準(zhǔn)，并且應(yīng)便于沖洗，以防止不同批量介質(zhì)的交叉污染?？上龑?dǎo)壓管泄漏污染周圍環(huán)境，可免去采用隔離液時(shí)，因測(cè)量信號(hào)的不穩(wěn)定，需要經(jīng)常補(bǔ)充隔離液的繁瑣工作。
從中東各國(guó)以及美國(guó)的反應(yīng)來(lái)看，隨著世界石油資源的消耗，在未來(lái)石油緊缺之時(shí)，或許將爆發(fā)更大的資源爭(zhēng)奪戰(zhàn)，在這種背景之下，國(guó)內(nèi)石油的儲(chǔ)量是越多越好，總之一句話，石油在手，天下我有。單法蘭液位變送器也需要連續(xù)測(cè)量界面和密度，要在衛(wèi)生清潔要求很高的場(chǎng)合使用.也能夠使用.
華恒變送器廠家研發(fā)出傳感器和智能電路板兩項(xiàng)核心技術(shù)，不僅所有產(chǎn)品的核心部件技術(shù)全部掌握，工業(yè)自動(dòng)變送器廠家的精確度也在不斷提高，由0.2級(jí)提高到0.1級(jí)。還可通過(guò)對(duì)所掌握核心技術(shù)進(jìn)行延伸，變形出測(cè)流量、測(cè)溫度的其他產(chǎn)品。

The second industrial revolution is to let human beings enter the mechanical age. Its energy is mainly oil. Up to now, coal and oil are still the main energy sources in the world. The discovery of large oil fields in Qingyang, Gansu Province, has a reserves of 5 billion tons and a total resource value of more than 4 trillion. The discovery of large oil fields in Gansu Province has laid a solid foundation for the development of China's oil industry, which provides a solid foundation for China to import oil. Lanzhou City, Jiayuguan City, Jinchang City, Baiyin City, Tianshui City, Wuwei City, Zhangye City, Pingliang City, Jiuquan copy City, Qingyang City, Dingxi City, Longnan City and many other areas have a wide range of oil field exploitation directions, and the large oil field found in Qingyang City in 2019 will be widely used in the near future
Based on the northwest, Xi'an Huaheng instrument manufacturer, which develops the sense of mission of northwest industrial automation, now has three major scientific and technological strengths, one is the technology of fully isolated intelligent circuit processing unit, the other is the manufacturing technology of metal capacitance sensor, and the third is the multi parameter technology of full series throttling devices.
It has more than 40 years of technology advantages and application scope in outstanding liquid level / flow transmitter
Single flange liquid level transmitter is a kind of field transmitter installed directly on the channel or vessel. The single flange liquid level transmitter can accurately measure the liquid level and density of various vessels, which can be divided into two types: flat flange and plug-in flange. Because the isolation diaphragm is in direct contact with the liquid medium. It is not necessary to lead the positive pressure side out with a pressure pipe. This method is applicable to the measurement of high temperature, high viscosity, easy crystallization, easy precipitation, strong corrosion and other media.

There are two kinds of single flange transmitters: plug-in type and flat flange type. The measurement principle and installation mode of the two transmitters are basically the same, but different process conditions have a great influence on the measurement data of the transmitter. Taking the flash drum of steam condensate in salt industry as an example, a is the inlet of steam condensate, B is the outlet of flash steam, C is the installation position of single flange transmitter, D is the drainage pipe of steam condensate, and E is the pressure tapping point on the negative pressure side of single flange transmitter.
Plug in single flange liquid level transmitter or flat flange liquid level transmitter are all differential pressure transmitters in the final analysis. The principle of measuring liquid level is to calculate the pressure of medium at full liquid level through the formula P = pGH, and then calculate the height of liquid level in the vessel through differential pressure after the range of transmitter is negatively shifted. Therefore, only when the pressure measurement is accurate can the liquid level be correct. The advantages of plug-in single flange liquid level transmitter are that it is not easy to block the pipe in the medium with high viscosity and large particles, but it still appears to be weak in the environment with severe fluid impact
The single flange liquid level transmitter also needs to continuously measure the interface and density, which should be used in the occasions with high requirements of sanitation and cleaning. For example, in the production of food, beverage and medicine industry, it is not only required that the contact medium part of the transmitter meet the health standard, but also should be flushed to prevent cross contamination of different batches of media. It can eliminate the leakage of the impulse pipe and pollute the surrounding environment. It can avoid the tedious work of replenishing the isolation liquid frequently because of the instability of the measurement signal when using the isolation liquid.
From the reactions of the countries in the Middle East and the United States, with the consumption of world oil resources, in the future when the oil is in short supply, there may be a greater battle for resources. In this context, the more domestic oil reserves, the better. In a word, oil is in hand, and I have it all over the world. The single flange liquid level transmitter also needs to measure the interface and density continuously. It should be used in the places with high requirements of sanitation and cleanness. It can also be used

華恒變送器廠家研發(fā)出感測(cè)器和智慧電路板兩項(xiàng)核心技術(shù)，不僅所有產(chǎn)品的核心部件科技全部掌握，工業(yè)自動(dòng)變送器廠家的精確度也在不斷提高，由0.2級(jí)提高到0.1級(jí)。還可通過(guò)對(duì)所掌握核心技術(shù)進(jìn)行延伸，變形出測(cè)流量、測(cè)溫度的其他產(chǎn)品。