Hermetic為客戶-煉油廠的新柴油脫硫裝置提供了一臺流量為1000 m3/h的屏蔽泵；柴油在脫硫過程中存在著很高的系統(tǒng)壓力和溫度；要求所用的泵設(shè)備具有最高的安全性和可靠性。Hermetic無泄漏屏蔽泵，通過精確的測量和精密的控制，以及嚴(yán)格的測試和檢查，提供了高可用性泵的解決方案；海密梯克Hermetic擁有在大型工業(yè)油氣廠面對復(fù)雜挑戰(zhàn)的專業(yè)知識和經(jīng)驗，同時，大連海密梯克泵業(yè)有限公司的泵技術(shù)專家還會時刻為制造廠和服務(wù)辦事處提供現(xiàn)場支持。
HERMETIC-Pumpen GmbH supplied a canned motor pump with a flow rate of 1,000 m3/h and a delivery head of 65 m for a new diesel fuel desulphurisation plant of a Chinese refinery. The high system pressures and temperatures prevailing during the desulphurisation process require the highest safety and reliability of the equipment used. The hermetically sealed HERMETIC pump, extensive measuring and control equipment as well as rigorous tests and inspections not only guarantee the plant operator a safe pump solution with high availability. The decisive factor to the refinery was HERMETIC’s expertise and experience with the complex challenges of large industrial oil and gas plants. In addition, the pump specialist with a joint venture provides on-site support to manufacturing plants and service offices in China.
隨著日益嚴(yán)格的全球污染物減排法律法規(guī)的頒布，在中國，柴油的含硫量被限制在10ppm。為了滿足這些要求，煉油廠必須依靠現(xiàn)代的技術(shù)。柴油脫硫工藝包括一個加氫的工藝，該工藝要求系統(tǒng)壓力超過100bar，溫度超過400°C。由于即使是最小的泄漏也可能導(dǎo)致致命火災(zāi)，因此工廠和部件需要具有最高水平的可靠性和安全性，多家有柴油脫硫需求的企業(yè)依賴并信任Hermetic的技術(shù)和質(zhì)量。
Under the increasingly stringent global regulations on the reduction of pollutant emissions, China also has a limit of 10 ppm for the sulphur content in diesel fuels. To comply with the requirements, refineries are required to invest in technological modernisation. The diesel desulphurisation process includes a hydrogenation process that requires system pressures of more than 100 bar and temperatures of more than 400°C. Since even the smallest leaks can cause fatal fires, plants and components require the highest level of reliability and safety. In the case of the reactor circulation pump requiring a delivery rate of 1,000 m3/h and a delivery head of 65 m, a well-known refiner in China relies on the expertise and quality of HERMETIC.
石油天然氣工業(yè)無泄漏泵解決方案
整個10噸重系統(tǒng)的核心是一臺Hermetic-CNKFH+D300-500屏蔽泵。完全符合API 685標(biāo)準(zhǔn)，泵電機的軸功率為185kw。所有承壓部件均由鍛造金屬材料制成。外殼由高強度不銹鋼316-Ti不銹鋼制成，并在310 bar的壓力下進行了測試。系統(tǒng)壓力為112 bar，工作溫度為405℃，一體式緊湊型裝置的額定壓力為130 bar。除轉(zhuǎn)子外，電機外殼還用作二次承壓設(shè)計，為提供無泄漏、安全的泵解決方案打下了基礎(chǔ)。
Leakage-free pump solution for the oil and gas industry
The core of the 10-ton pump system is a CNKfH+D 300-500 canned motor pump. The water-cooled motor of the pump according to API 685 has a shaft power of 185 kW. All pressure containing parts were made of forged solid materials. The housing is made of highly resistant SS 316 Ti stainless steel and has been tested at 310 bar. With a system pressure of 112 bar and an operating temperature of 405 degrees Celsius, the integrated, compact unit is designed for a nominal pressure of 130 bar. In addition to the rotor lining, the motor housing serves as a secondary containment, which provides a leak-free, safe pump solution.
低磨損、低維護的設(shè)計原則
Hermetic屏蔽泵無軸密封，無聯(lián)軸器和滾動軸承的設(shè)計，大大減少了用戶維護和維修的成本，并能確保更長的使用壽命。Hermetic的“ZART”(零軸向和徑向推力)技術(shù)原理，確保轉(zhuǎn)子單元的無接觸和無磨損運行。旋轉(zhuǎn)和靜態(tài)套筒軸承組件之間的精細流體膜允許轉(zhuǎn)子完全“浮動”。為了監(jiān)測軸向推力平衡，該泵采用了密封的“MAP”技術(shù)。轉(zhuǎn)子位置監(jiān)測檢測轉(zhuǎn)子運中最輕微的運動，作為一種早期預(yù)警系統(tǒng)，能防止不期望的操作環(huán)境和花費造成的巨大損壞。由于這種液壓動力平衡，屏蔽泵沒有徑向和軸向磨損，從而保證了屏蔽泵明顯更長的使用壽命。
Low-wear and low-maintenance design principle
The design-related omission of wear-prone components such as shaft seals, couplings and bearings reduces the maintenance and repair costs and ensures a longer service life. The “ZART” (Zero Axial and Radial Thrust) technological part from HERMETIC ensures a contact- and wear-free running of the rotor unit. It is based on comprehensive axial thrust balancing in conjunction with hydrodynamic sleeve bearings. While relief mechanisms in the control unit continuously monitor the axial position of the pump shaft, a fine fluid film between the rotating and static sleeve bearing component allows a full “floating” of the rotor. For the monitoring of the the axial thrust balancing, the pump is equipped with the HERMETIC “MAP” technology. The rotor position monitoring detects the slightest plays in the rotor movement and serves as a kind of early warning system to prevent undesired operating conditions and expensive damage. Due to this hydraulic power balance, the HERMETIC pump operates without radial and axial wear, thus offering plant operators significantly longer service life.
整個系統(tǒng)集成了測量和控制設(shè)備
為確保高可用性和耐用性，Hermetic屏蔽泵配備了額外的測量和控制設(shè)備。為了防止?jié)撛诘碾姍C和軸承損壞，該特定液體循環(huán)過程避免了電動機側(cè)的氣體積聚，氣體可以從泵輸送的送介質(zhì)中逸出。這其中應(yīng)用了精確定制的計量泵在轉(zhuǎn)子空間中產(chǎn)生精細，均勻的逆流，從而防止這種情況發(fā)生。系統(tǒng)監(jiān)控中集成的液位指示器，指示電路中是否沒有氣體。為防止電機過熱，安裝了電機繞組的溫度監(jiān)控。另一個傳感器監(jiān)控電機冷卻回路的溫度，確保冷卻性能和功能安全。其他組件還包括，如安全閥；還有嚴(yán)格的測試和檢查程序，包括X射線測試，振動測試和超聲波測試以及全面的檢測檢驗，這些測試和監(jiān)控設(shè)備保證了高可靠性屏蔽泵系統(tǒng)的全球供貨范圍。HERMETIC泵在全球目前的15家大型煉油廠中都展示了其安全性和性能；
Entire system with integrated measuring and control equipment
To ensure high availability and durability, the canned motor pump was provided with additional measuring and control equipment. To prevent potential motor and bearing damage, this particular process avoids gas accumulations on the motor side, which can escape from the pumped medium. A dosing pump precisely tailored to the application generates a fine, uniform counterflow in the rotor space, which prevents this. A level indicator integrated in the system monitoring indicates whether there is no gas in the circuit. While a heat barrier prevents the heat transfer from the pump to the motor part, an external heat exchanger ensures the dissipation of motor heat loss. To prevent overheating, a temperature monitoring of the motor winding is integrated. Another sensor monitors the temperature of the motor cooling circuit, which ensures the cooling performance and the functional safety. Other components such as safety valves and an extensive, rigorous testing and inspection procedures including X-ray tests, vibration tests and ultrasonic tests as well as comprehensive documentation complete the scope of supply to a highly reliable system. HERMETIC pumps demonstrate their safety and performance in currently 15 large refineries worldwide.
