山東螺桿式風(fēng)機的介紹

山東螺桿式風(fēng)機發(fā)展較晚，是一種新型的回轉式風(fēng)機，分為單螺桿與雙螺桿式，市場(chǎng)上常見(jiàn)的為雙螺桿式。雙螺桿結構由瑞典人里斯曼發(fā)明，先用于壓縮機領(lǐng)域，到20世紀末，雙螺桿結構在鼓風(fēng)機領(lǐng)域才開(kāi)始獲得較快發(fā)展，并在諸多應用領(lǐng)域展現里良好的易用性，如、穩定等。憑借良好的性能，在較多領(lǐng)域開(kāi)始逐漸替代傳統風(fēng)機。

Screw fan is a new type of rotary fan, which can be divided into single screw type and double screw type. The common type in the market is twin-screw type. The twin-screw structure was invented by Riesman of Sweden and was first used in the field of compressor. By the end of the 20th century, the twin-screw structure began to obtain rapid development in the field of blower, and showed good ease of use in many application fields, such as energy saving, stability, etc. With good performance, it has gradually replaced the traditional fan in many fields.

一、螺桿風(fēng)機的結構

1、 Structure of screw fan

以錦工雙螺桿鼓風(fēng)機為例，螺桿風(fēng)機一般主要由外罩、主機、電機、空氣過(guò)濾器、消音器、油泵油箱以及油慮等部分構成。錦工雙螺桿鼓風(fēng)機可根據客戶(hù)要求進(jìn)行定制，比如去掉外罩、改為無(wú)油系統等。

Taking Jingong twin-screw blower as an example, screw fan is generally composed of cover, main engine, motor, air filter, muffler, oil pump tank and oil filter. Jingong twin-screw blower can be customized according to customer requirements, such as removing the cover, changing to oil-free system, etc.

錦工螺桿鼓風(fēng)機結構

Structure of screw blower in Jingong

螺桿主機作為螺桿風(fēng)機的核心部件，其結構直接決定了風(fēng)機性能的優(yōu)劣。螺桿主機主要由機殼、螺桿轉子、齒輪箱、軸承、軸封等主要部件構成。

As the core component of screw fan, the structure of screw host directly determines the performance of the fan. Screw host is mainly composed of casing, screw rotor, gearbox, bearing, shaft seal and other main components.

二、螺桿風(fēng)機的運行原理

2、 Operation principle of screw fan

螺桿式風(fēng)機的運行原理是兩根平行的陰陽(yáng)轉子在“∞”形氣缸中相互嚙合形成工作容積，通過(guò)同步齒輪，轉子作反向高速轉動(dòng)，隨著(zhù)轉子轉動(dòng)工作容積的大小發(fā)生周期性的變化，在氣體輸送過(guò)程中同時(shí)實(shí)現氣體的壓縮。螺桿式風(fēng)機的工作循環(huán)可分為吸氣、壓縮和排氣三個(gè)過(guò)程。其循環(huán)過(guò)程如下所示：

The operation principle of screw fan is that two parallel male and female rotors mesh with each other in the "∞" cylinder to form the working volume. Through synchronous gears, the rotor rotates in reverse high speed. With the rotor rotation, the working volume changes periodically, and the gas compression is realized in the process of gas transmission. The working cycle of screw fan can be divided into three processes: suction, compression and exhaust. The cycle process is as follows:

1、吸氣過(guò)程

1. Inspiratory process

氣體經(jīng)吸氣口進(jìn)入轉子齒間容積，隨著(zhù)轉子的轉動(dòng)，齒間容積不斷擴大，當齒間容積達到時(shí)，齒間容積與吸氣口斷開(kāi)，吸氣過(guò)程結束。

The gas enters into the inter tooth volume of the rotor through the suction port. With the rotation of the rotor, the volume between teeth expands continuously. When the volume between teeth reaches the maximum, the volume between teeth is disconnected from the suction port, and the suction process is finished.

3、排氣過(guò)程

3. Exhaust process

齒間容積與排氣口連通后，排氣過(guò)程開(kāi)始。轉子轉動(dòng)過(guò)程中，齒間容積不斷減小，將壓縮后的氣體送排氣管。此過(guò)程一直延續到該容積達

After the volume between teeth is connected with the exhaust port, the exhaust process begins. During the rotation of the rotor, the volume between the teeth decreases continuously, and the compressed gas is sent to the exhaust pipe. This process continues until the volume reaches

三、螺桿式風(fēng)機的特點(diǎn)

3、 Characteristics of screw fan

螺桿式風(fēng)機在腔體內氣體輸送的過(guò)程中實(shí)現了內壓縮，因此螺桿擁有羅茨大部分的優(yōu)點(diǎn)之外，同時(shí)比羅茨具備更高的效率，且氣體的輸送壓縮的過(guò)程是連續漸進(jìn)的，氣流脈動(dòng)更低，排氣噪音、溫度控制等均要優(yōu)于羅茨等傳統風(fēng)機。

Screw fan realizes internal compression in the process of gas transportation in the cavity, so screw has most of the advantages of roots, and has higher efficiency than roots. Moreover, the process of gas transportation and compression is continuous and gradual, with lower flow pulsation, better exhaust noise and temperature control than roots and other traditional fans.

作為近年來(lái)新興發(fā)展的回轉式鼓風(fēng)機種類(lèi)，螺桿風(fēng)機因其結構簡(jiǎn)單，穩定、低噪音等優(yōu)勢，開(kāi)始普遍出現在曝氣、氣水反沖、氧化脫硫、流化/均化工藝、氣力輸送等應用中，并將會(huì )成為各個(gè)行業(yè)風(fēng)機選擇亮點(diǎn)。

As a new type of rotary blower in recent years, screw fan has been widely used in aeration, gas water backwash, oxidation desulfurization, fluidization / homogenization process, pneumatic conveying and other applications due to its simple structure, stability, energy saving and low noise, and will become the highlight of fan selection in various industries.