山東螺桿式風機的全面介紹

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

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、螺桿風機的結構

1、 Structure of screw fan

以錦工雙螺桿鼓風機為例，螺桿風機一般主要由外罩、主機、電機、空氣過濾器、消音器、油泵油箱以及油慮等部分構成。錦工雙螺桿鼓風機可根據(jù)客戶要求進行定制，比如去掉外罩、改為無油系統(tǒng)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.

錦工螺桿鼓風機結構

Structure of screw blower in Jingong

螺桿主機作為螺桿風機的核心部件，其結構直接決定了風機性能的優(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、螺桿風機的運行原理

2、 Operation principle of screw fan

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

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、吸氣過程

1. Inspiratory process

氣體經吸氣口進入轉子齒間容積，隨著轉子的轉動，齒間容積不斷擴大，當齒間容積達到最大時，齒間容積與吸氣口斷開，吸氣過程結束。

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、排氣過程

3. Exhaust process

齒間容積與排氣口連通后，排氣過程開始。轉子轉動過程中，齒間容積不斷減小，將壓縮后的氣體送至排氣管。此過程一直延續(xù)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、螺桿式風機的特點

3、 Characteristics of screw fan

螺桿式風機在腔體內氣體輸送的過程中實現(xiàn)了內壓縮，因此螺桿擁有羅茨大部分的優(yōu)點之外，同時比羅茨具備更高的效率，且氣體的輸送壓縮的過程是連續(xù)漸進的，氣流脈動更低，排氣噪音、溫度控制等均要優(yōu)于羅茨等傳統(tǒng)風機。

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.

作為近年來新興發(fā)展的回轉式鼓風機種類，螺桿風機因其結構簡單，穩(wěn)定、節(jié)能低噪音等優(yōu)勢，開始普遍出現(xiàn)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，并將會成為各個行業(yè)風機選擇亮點。

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.