螺桿式空壓機(jī)進(jìn)氣閥的工作過程是：啟動、加載、卸載、空調(diào)和停機(jī)。 

 （1）啟動。電機(jī)啟動，主機(jī)開始運(yùn)轉(zhuǎn)，進(jìn)氣閥關(guān)閉狀態(tài)閥芯上的小孔進(jìn)氣，經(jīng)過壓縮的油氣進(jìn)入油氣桶，系統(tǒng)壓力逐漸上升。 

 （2）加載。電機(jī)星三角轉(zhuǎn)換，控制系統(tǒng)會比較系統(tǒng)的實際壓力與設(shè)定壓力，當(dāng)系統(tǒng)壓力低于壓力開關(guān)設(shè)定下限壓力時，壓力開關(guān)動作使加載電磁閥加電，三向電磁閥開啟，向進(jìn)氣門伺服氣缸供氣推動控制氣缸打開蝶閥，進(jìn)氣閥全開吸氣；經(jīng)由電磁閥的壓力同時關(guān)閉泄放閥，機(jī)器不再放空，罐內(nèi)壓力持續(xù)上升至外向供氣。 

 （3）卸載。當(dāng)壓力上升到壓差開關(guān)上限壓力時，壓差開關(guān)發(fā)出一個電信號給三向電磁閥，電磁閥關(guān)閉停止向進(jìn)氣門伺服氣缸供氣，控制氣缸不受壓則蝶閥關(guān)閉維持小孔進(jìn)氣，此時受配重控制止回閥能及時迅速的緊密關(guān)閉，同時泄放閥打開釋放油氣桶內(nèi)壓力至基本油壓。空壓機(jī)處于空載運(yùn)行，在加載電磁閥連續(xù)失電20min后，系統(tǒng)進(jìn)入空車過久停車狀態(tài)。  

（4）容調(diào)。空壓機(jī)加載過程中為減少空壓機(jī)的空重負(fù)荷次數(shù)，安裝有反比例閥，當(dāng)機(jī)組壓力達(dá)到壓力開關(guān)上限前反比例閥提前動作，減少向伺服汽缸的供氣量，進(jìn)氣閥伺服汽缸閥桿推力減少，在彈簧力的作用下閥桿回縮，當(dāng)彈簧力與汽缸的氣體推力平衡時，閥桿處于半開狀態(tài)，進(jìn)氣量減少實現(xiàn)空壓機(jī)的容量調(diào)節(jié)。 

 （5）停機(jī)。停機(jī)信號來自空車過久或系統(tǒng)壓力長時間處于壓力上限，電機(jī)停止，主機(jī)停轉(zhuǎn)不再吸氣，進(jìn)氣閥的內(nèi)部止回閥迅速關(guān)閉確保沒有停機(jī)吐油的現(xiàn)象，泄放閥持續(xù)放空至外部大氣壓力。

HOERBIGER賀爾碧格螺桿空壓機(jī)進(jìn)氣閥型號：HDKG40，HDKG50，HDKG65，HDKG85,HDKG120，HDKG160

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進(jìn)氣閥的主要功能是在控制系統(tǒng)作用下調(diào)節(jié)空氣壓縮機(jī)的進(jìn)氣量，使其與用戶的用氣量保持一個經(jīng)濟(jì)的匹配。
產(chǎn)品使用于瑞典Atlas.Copco（阿特拉斯），美國SULLAIR（壽力）,Ingersoll-Rand（英格索蘭），英國CompAir（康普艾）,日本HITACHI（日立）,KOBELCO（神鋼）,Iwata（巖田）,德國ECOAIR（艾高）,BOGE（寶駒）,KAESER（凱撒）,HANNOVEI（漢諾威）,Lingein（凌格風(fēng)），臺灣FS（復(fù)盛）,柳州LiUTEHCH（富達(dá)），昆西Quincy，優(yōu)耐特unite，聚才JuCai，霸爾BAUER，風(fēng)霸HYDROVANE，巨霸PUMA，瑪拉MAHLE，三井MITSUISEKI，羅德康普ROTORCOMP，固力GOODAIR，瑪泰MATTEIN，柯龍AIRKRONE，韓信HANSHIN等各類螺桿壓縮機(jī)。

Screw air compressor inlet valve working process is: start, loading, unloading, air conditioning and downtime.

(1). To run motor starts, the host, into the holes on the valve closed valve core inlet, compressed gas into the barrels of oil and gas, the system pressure is rising gradually.

(2) load. Star triangle conversion, control system will be the actual pressure and setting, when the system pressure below the pressure switch is set lower limit pressure, pressure switch action make electromagnetic valve, electric load, three-way electromagnetic valve opens, the gas supply to the inlet valve servo cylinder push open the butterfly valve control cylinder, intake valve fully open a breath; Through the electromagnetic valve of the pressure at the same time close the discharge valve, the machine is no longer empty, tank pressure continued to rise to the outgoing air supply.

(3) the unloading. When the pressure rises to the maximum pressure differential pressure switch, pressure differential switch sends an electrical signal to the three-way electromagnetic valve, electromagnetic valve closed stop gas supply to the inlet valve servo cylinder, control cylinder pressure was maintained holes inlet butterfly valve closing, as controlled by the weight check timely quickly tightly closed, open the drain valve at the same time release the pressure in the barrel of oil and gas to basic oil pressure. The no-load operation of the compressor, the load solenoid valve for 20 min after losing electricity, the system enters the empty car parking state too long.

(4) capacity. Air compressor in the loading process to decrease the number of empty heavy load for air compressor, the installation has the inverse proportion valve, when the unit pressure to pressure switch cap of inverse proportion valve in advance before action, reduce the gas, a servo cylinder servo cylinder inlet valve stem thrust reduced, in under the action of spring force stem retraction, when the spring force and the gas cylinder thrust balance, the valve stem is in a state of half open, the volume reduction of air compressor capacity adjustment.

(5) downtime. Stop signal from empty for too long, or the system pressure in pressure for a long time limit, the motor stops, the host stalling no longer breathe in, quickly close internal check valve inlet valve to ensure no downtime the phenomenon of spitting oil, relief valve continued to vent to the outside atmospheric pressure.

HOERBIGER He Erbi screw air compressor inlet valve type: HDKG40, HDKG50, HDKG65, HDKG85, HDKG120, HDKG160

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Intake valve"s main function is in the control system under the action of adjust the air inflow of air compressor, to keep its gas with the user a matching of the economy.

Products used in the Atlas Copco (Atlas), American SULLAIR (SULLAIR), Ingersoll Rand (Ingersoll Rand), British CompAir (CompAir), Japan"s HITACHI (HITACHI), KOBELCO (steel) god, Iwata (range), Germany ECOAIR (ai), BOGE (easy-on-the-ol), KAESER (Kaiser), HANNOVEI (Hanover), Lingein (insulted thestandard wind), Taiwan FS (fu sheng), liuzhou LiUTEHCH (fidelity), Quincy, Quincy, optimal knight unite, JuCai poly, bully BAUER, wind bully HYDROVANE, big bully PUMA, Myra MAHLE, mitsui MITSUISEKI, Luo Dekang ROTORCOMP, solid GOODAIR, Thai MATTEIN, KeLong AIRKRONE, han xin HANSHIN, etc all kinds of screw compressor.