關(guān)于風(fēng)門執(zhí)行器,您可以了解的內(nèi)容(中英文)
風(fēng)閥執(zhí)行器(有時(shí)也稱為風(fēng)門電機(jī))是 HVAC 系統(tǒng)中用于控制風(fēng)門開(kāi)啟和關(guān)閉的部件。風(fēng)門是一個(gè)小型閥門或板,用于調(diào)節(jié)系統(tǒng)內(nèi)的氣流。沒(méi)有風(fēng)門執(zhí)行器,就無(wú)法提供移動(dòng)風(fēng)門所需的力。
風(fēng)門及其配套的風(fēng)門執(zhí)行器組合用于各種工業(yè)系統(tǒng),但在 HVAC 領(lǐng)域最為常見(jiàn)。電動(dòng)、氣動(dòng)或液壓機(jī)構(gòu)均可用于操作風(fēng)門執(zhí)行器,并能夠高度精確地控制氣流。
The damper actuator – also called damper motor in some cases – is the HVAC component used to control the opening and closing of the damper. The damper is a small valve or plate that helps to regulate airflow within a system. Without the damper actuator, there is no way to provide the necessary force to move the damper.
The combination of a damper and its associated damper actuator is used in a variety of industrial systems, but it is most common in the HVAC world. Electric, pneumatic, or hydraulic mechanisms can all be used to operate the damper actuator, and it enables highly precise control over the flow of air.
溫度和空氣質(zhì)量都可以通過(guò) HVAC 風(fēng)門執(zhí)行器進(jìn)行控制:
它可以控制新鮮空氣(室外)和循環(huán)空氣的混合
它可以根據(jù)需要保持、升高或降低溫度
它可以控制濕度水平
Temperature and air quality can both be influenced through an HVAC damper actuator:
It can control the mixture of fresh (outside) and recycled air
It can maintain, raise, or lower the temperature as desired
It can control humidity levels
暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器如何工作?
How Does an HVAC Damper Actuator Work?
風(fēng)門執(zhí)行器根據(jù)控制系統(tǒng)的信號(hào)移動(dòng),控制系統(tǒng)根據(jù)建筑物內(nèi)的溫度設(shè)定或氣流需求,提供風(fēng)門的優(yōu)選位置信息。在執(zhí)行器內(nèi)部,控制信號(hào)被轉(zhuǎn)換為必要的運(yùn)動(dòng)。
風(fēng)門執(zhí)行器持續(xù)監(jiān)測(cè)控制信號(hào),以便風(fēng)門能夠根據(jù)環(huán)境變化隨時(shí)移動(dòng)。在某些情況下,甚至還設(shè)有手動(dòng)超控功能,以便技術(shù)人員可以繞過(guò)自動(dòng)控制系統(tǒng)直接打開(kāi)或關(guān)閉風(fēng)門。
暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器通常配備限位開(kāi)關(guān)和故障安全功能。這些功能有助于防止風(fēng)門在異常運(yùn)行條件下甚至系統(tǒng)其他部件發(fā)生故障時(shí)受損。例如,執(zhí)行器可以設(shè)計(jì)為在丟失控制信號(hào)時(shí)返回安全位置。
The damper actuator moves in response to a signal from a control system, which provides information on the preferred position for the damper in response to temperature settings or airflow requirements in the building. Inside the actuator, the control signal is translated into the necessary movement.
The damper actuator continues to monitor for control signals so the damper can move at any time in response to changes in the conditions. In some cases, there are even manual override functions so that a technician can directly open or close the damper while bypassing the automatic control system.
Limit switches and fail-safe features are often incorporated into an HVAC damper actuator. These help to keep the damper from getting damaged during unusual operating conditions or even when the rest of the system is failing. For example, the actuator might be designed to return to a safe position if it loses the control signal.
暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器的類型
Types of HVAC Damper Actuators
雖然目前最常見(jiàn)的 HVAC 風(fēng)門執(zhí)行器是電動(dòng)執(zhí)行器,但也存在其他幾種類型。其他類型的風(fēng)門執(zhí)行器各有優(yōu)缺點(diǎn)。如果有人在現(xiàn)場(chǎng)遇到其他類型的風(fēng)門執(zhí)行器,很可能它是專門為滿足系統(tǒng)需求而設(shè)計(jì)的。
最常見(jiàn)的 HVAC 風(fēng)門執(zhí)行器類型包括:
Although the most common HVAC damper actuator these days is the electric type, several others exist. The other varieties of damper actuators all have their own pros and cons. If you encounter another kind of damper actuator in the field, odds are good it was designed a certain way on purpose to serve the system’s needs.
The most common types of HVAC damper actuators include:
電動(dòng)暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器
Electric HVAC Damper Actuators
電動(dòng)暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器以使用電動(dòng)機(jī)控制風(fēng)門的開(kāi)啟和關(guān)閉而聞名。電動(dòng)機(jī)在接收到控制信號(hào)后產(chǎn)生適當(dāng)?shù)男D(zhuǎn)力。通常的設(shè)計(jì)采用齒輪系將旋轉(zhuǎn)力轉(zhuǎn)化為精確移動(dòng)到所需位置的移動(dòng)。
Electric HVAC damper actuators are known for using an electric motor to control the opening and closing of the damper. The electric motor generates the appropriate rotational force after receiving a control signal. The usual design employs a gear train to convert the rotational force into the precise movement to the desired position.
氣動(dòng) HVAC 風(fēng)門執(zhí)行器
Pneumatic HVAC Damper Actuators
壓縮空氣作為氣動(dòng) HVAC 風(fēng)門執(zhí)行器的動(dòng)力。空氣壓力驅(qū)動(dòng)隔膜或活塞,使其移動(dòng),并將移動(dòng)傳遞至執(zhí)行器??烧{(diào)節(jié)空氣量,以精確控制執(zhí)行器的運(yùn)動(dòng)。
Compressed air acts as the motive force in the pneumatic HVAC damper actuator. The pressure of the air drives the diaphragm or piston, moving it, and the movement is transferred to the actuator. The amount of air can be moderated to deliver precise control over the actuator’s movement.
液壓暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器
Hydraulic HVAC Damper Actuators
液壓暖通空調(diào) (HVAC) 風(fēng)門執(zhí)行器最不常見(jiàn),但更常見(jiàn)于大型系統(tǒng)中。液壓泵用于在封閉系統(tǒng)內(nèi)對(duì)流體加壓,從而驅(qū)動(dòng)機(jī)械部件——最常見(jiàn)的是活塞??刂菩盘?hào)打開(kāi)或關(guān)閉執(zhí)行器內(nèi)的閥門,以控制運(yùn)動(dòng)。
The hydraulic HVAC damper actuator is the least typical and is more likely to be seen within the largest scale systems. A hydraulic pump is used to pressurize fluid within a closed system, moving the mechanical parts – a piston is most common. Control signals open or close valves within the actuator to control the movement.
風(fēng)門執(zhí)行器維護(hù)和故障排除
Damper Actuator Maintenance and Damper Actuator Troubleshooting
與其他常規(guī)暖通空調(diào) (HVAC) 維護(hù)或商用壓縮機(jī)維護(hù)相比,風(fēng)門執(zhí)行器的維護(hù)技巧并沒(méi)有什么特別之處。首先,務(wù)必檢查執(zhí)行器,以便在腐蝕、磨損和其他問(wèn)題影響性能之前發(fā)現(xiàn)它們。
定期按照制造商說(shuō)明潤(rùn)滑零件,以防止摩擦造成損壞。每季度或每年兩次校準(zhǔn)執(zhí)行器,以確保其持續(xù)對(duì)控制系統(tǒng)的信號(hào)做出適當(dāng)?shù)捻憫?yīng)??赡苄枰屑?xì)檢查校準(zhǔn)情況并清潔反饋傳感器。
定期檢查過(guò)濾器,確保流體或空氣清潔,如果使用液壓或氣動(dòng)執(zhí)行器,則測(cè)試壓力水平。請(qǐng)記住,就像系統(tǒng)中其他位置的暖通空調(diào) (HVAC) 過(guò)濾器一樣,任何執(zhí)行器的過(guò)濾器都需要清潔或更換,并且應(yīng)該確切地知道如何處理它們。
風(fēng)門執(zhí)行器是暖通空調(diào) (HVAC) 系統(tǒng)的一個(gè)部件,如果它停止工作,可能會(huì)導(dǎo)致嚴(yán)重的問(wèn)題。但是,如果診斷出問(wèn)題后才發(fā)現(xiàn)實(shí)際上是暖通空調(diào)壓縮機(jī)出了問(wèn)題,該怎么辦?在這種情況下,翻新商用壓縮機(jī)是最佳選擇。
使用翻新商用壓縮機(jī),比從原始設(shè)備制造商 (OEM) 關(guān)聯(lián)批發(fā)商處購(gòu)買全新暖通空調(diào)商用壓縮機(jī),可節(jié)省 10%、20% 甚至更多。購(gòu)買一臺(tái)可再用十年的設(shè)備,同時(shí)將新暖通空調(diào)壓縮機(jī)的采購(gòu)時(shí)間從數(shù)月縮短至數(shù)周。
Damper actuator maintenance tips are nothing too out of the ordinary compared to other forms of regular HVAC maintenance or?HVAC commercial compressor maintenance. First and foremost, make sure you inspect the actuator so you can spot signs of corrosion, wear, and other problems before they impact performance.
Lubricate parts regularly according to manufacturer instructions to keep friction from causing damage. Calibrate the actuator on a quarterly or twice-annual basis to ensure it continues to respond appropriately to the signal from the control system. You may need to double-check alignment and clean off feedback sensors.
Regularly check the filters, ensure the fluid or air is clean, and test the pressure levels if you use a hydraulic or pneumatic actuator. Remember that, just like the HVAC filters elsewhere in the system, you will need to clean or replace any actuator filters and should know exactly how to handle them when the time comes.
The damper actuator is one component that can cause outsize problems with your HVAC system if it stops working. But what if you diagnose a problem only to discover it’s actually the HVAC compressor at fault? In cases like these, a remanufactured commercial compressor is your best bet.
With a remanufactured commercial compressor, you can enjoy a savings of 10%, 20%, or even more over the new HVAC commercial compressor cost from an OEM-affiliated wholesaler. You get a unit that’s ready for another decade while cutting your new HVAC compressor procurement time from months to weeks.
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