Disassembly tool
1) Set of wrenches
Set of wrenches is the most commonly used, economical and convenient hand tool in the tightening of heat exchanger bolts, commonly known as "tight head".
In the process of bolt tightening, it is necessary to increase the impact force of the hammer or lengthen the arm with a sleeve to be disassembled or tightened. This requires the wrench to disassemble the bolt to have greater resistance to impact, non-slip, and long life. . When making the set of wrenches, the size of the die is equal to the size of the standard nut + 1m, and it is manufactured by stamping.
2) Impact air trigger (pneumatic wrench)
Impact pneumatic trigger, also known as pneumatic wrench, is an efficient mechanical hand tool for disassembling bolts and nuts, and is widely used in petrochemical inspection and maintenance industries. It can play a very prominent role in the overhaul. A bolt or nut can be tightened or removed within a few seconds, which can greatly shorten the maintenance time of the heat exchanger, and it is very safe and simple to use. The power used by the pneumatic wrench The source is compressed air, so it is especially convenient to use in petrochemical plants and other plants with compressed air pipe networks.
Plate heat exchanger Introduction of special disassembly tools
It is particularly important to note that the pneumatic wrench cannot replace the set of wrenches. The reason is that some heat exchangers used at high temperatures have bolts and nuts seized and difficult to disassemble. The impact force of the pneumatic wrench is not enough to loosen the nut. The set wrench has a long handle, under the impact of the sledgehammer, a large impact torque is obtained and the nut is loosened. After the nut is loosened by the set wrench, the nut is removed with an air-operated wrench, which will greatly speed up the work efficiency of removing the bolt.
The heat exchanger is thermally tight, and a set of wrenches is generally used instead of a pneumatic wrench.
3) Hydraulic wrench
Hydraulic wrenches are used to tighten large-size bolts of high-pressure heat exchangers. Hydraulic wrench can accurately control the torque of high-strength bolt connection, improve the quality and reliability of bolt thread connection, and is one of the necessary tools for high-pressure heat exchanger maintenance.
