如何正確維修ASCO防爆電磁閥方法？

如何正確維修ASCO防爆電磁閥方法？

預防性維護主要是為確保調壓器可靠運行而在不發(fā)生故障時采取的預防性維護措施,包括ASC防爆電磁閥在現(xiàn)場安裝使用

時采取的一系列預防性措施;和ASCO防爆電磁閥的故障維護,即當調壓器出現(xiàn)故障時調壓器不能滿足使用要求時所進行的一系

列維護,通常在車間內完成,也可以直接在工r進行。特殊情況下的管道。

預防性維護,預防性維護是指控制閥故障之前的計劃維護。可以理解為日常維護,通常包括以下任務。

1.1泄壓管線。由氣動控制閥的組合或安裝不當弓|起的各種應力,例如高溫介質弓|起的熱應力,固定式單座控制閥在安裝過

程中因固體力不平衡引起的應力以及人為的確定性。以及這些碰撞導致的管道。這些應力會影響ASCO防爆電磁閥及其管道,這

些應力很容易影響調節(jié)閥。在嚴重的情況下,它會影響調節(jié)系統(tǒng)本身,導致閥桿和導向件變形,而閥桿和導向件無法與閥座對

齊。分體閥體調節(jié)閥可能導致閥體法蘭脫離;應力也可能導致閥座泄漏。因此,有必要確保可以隨時避免或消除應力,并且應力

應從調節(jié)閥上移開。

1.2檢查軸承狀況。ASCO防爆電磁閥的好位置是使閥桿的行程方向和執(zhí)行器位于閥體上方的垂直平面上。如果必須將調節(jié)

器安裝在閥桿水平移動的位置,或者當閥桿的移動方向和水平面傾斜-定程度時,應在調節(jié)器的正常工作狀態(tài)下支撐執(zhí)行器。如

果沒有安裝支撐或安裝支撐, 安裝不當會導致閥桿和閥座的調節(jié)不-致,很容易引起差異或引起填料泄漏和其他故障。即使調節(jié)

器具有固定的支撐措施,也應定期檢查,例如每2到3個月檢查- -次。

常閉式:線路通電時,吸住先導閥芯,打開先導孔，解除閥門上腔,下腔內的介質壓力推動活塞,電磁閥開啟;當線國斷電

時,先導閥芯被彈簧復位,先導孔關閉,閥的上腔被活塞孔和復位彈簧的推力加壓,電磁閥關閉。

常開型:當線罔通電時,先導孔關閉,閥的上腔由活塞孔和回位彈簧的推力加壓,電磁閥關閉。斷電時,先導閥芯被彈簧復

位,先導孔打開,閥門上腔卸壓，下腔中壓推動活塞,電磁閥打開。信號反饋:當閥[ ]開啟時,信號公共線和開啟信號線連接:

當閥門關閉時,信號公共線和關閉信號線連接。信號反饋電磁閥選擇規(guī)范:

1.電磁閥的主要控制參數(shù)有直徑、設計公稱壓力、介質允許溫度范圍、接口尺寸等。

2.電磁閥使用電磁鐵推動閥[ ]的開啟和關閉,通常用于直徑從DN15到DN300的兩位控制,特別是用于連接、切斷或

How to correctly repair ASCO explosion-proof solenoid valves?

Preventive maintenance is mainly a preventive maintenance measure taken to ensure the reliable operation of the voltage regulator without failure, including the installation and use of ASC explosion-proof solenoid valves on site

A series of preventive measures taken at the time; Fault maintenance of ASCO explosion-proof solenoid valves, which refers to a series of actions taken when the regulator fails and cannot meet the usage requirements

Column maintenance is usually completed in the workshop or can be directly carried out in the workshop. Pipeline under special circumstances.

Preventive maintenance refers to planned maintenance prior to control valve failure. It can be understood as daily maintenance, usually including the following tasks.

1.1 Pressure relief pipeline. Various stresses caused by the combination or improper installation of pneumatic control valves, such as the thermal stress caused by high-temperature medium bows, can occur when a fixed single seat control valve is installed

The stress caused by the imbalance of physical strength during the process and the uncertainty caused by human factors. And the pipes caused by these collisions. These stresses will affect ASCO explosion-proof solenoid valves and their pipelines, which

Some stresses can easily affect the regulating valve. In severe cases, it can affect the regulating system itself, causing deformation of the valve stem and guide components, which cannot align with the valve seat

Qi. The split valve body regulating valve may cause the valve body flange to detach; Stress can also cause valve seat leakage. Therefore, it is necessary to ensure that stress can be avoided or eliminated at any time, and that stress

It should be removed from the regulating valve.

1.2 Check the condition of the bearings. The good position for ASCO explosion-proof solenoid valves is to position the direction of valve stem travel and the actuator on the vertical plane above the valve body. If it is necessary to adjust

The actuator should be supported in the normal working state of the regulator when installed in the position where the valve stem moves horizontally, or when the direction of valve stem movement and the horizontal plane tilt to a certain degree. as

If there is no installation support or installation support, improper installation can lead to improper adjustment of the valve stem and valve seat, which can easily cause differences or lead to packing leakage and other faults. Even if adjusted

The device has fixed support measures and should also be inspected regularly, such as every 2 to 3 months.

Normally closed: When the circuit is energized, the pilot valve core is sucked in, the pilot hole is opened, and the upper chamber of the valve is released. The medium pressure in the lower chamber pushes the piston, and the solenoid valve opens; When the line country loses power

At this time, the pilot valve core is reset by the spring, the pilot hole is closed, the upper chamber of the valve is pressurized by the thrust of the piston hole and the reset spring, and the solenoid valve is closed.

Normally open type: When the line is not energized, the pilot hole closes, and the upper chamber of the valve is pressurized by the thrust of the piston hole and return spring, and the solenoid valve closes. When the power is cut off, the pilot valve core is spring-loaded

Position, pilot hole open, valve upper chamber depressurizes, lower chamber medium pressure pushes piston, solenoid valve opens. Signal feedback: When the valve [] opens, the signal common line is connected to the open signal line:

When the valve is closed, the signal common line is connected to the closing signal line. Selection specifications for signal feedback solenoid valves:

The main control parameters of an electromagnetic valve include diameter, design nominal pressure, allowable temperature range of the medium, interface size, etc.

2. Electromagnetic valves use electromagnets to push the opening and closing of valves, usually used for two position control with diameters ranging from DN15 to DN300, especially for connecting, cutting, or