The support bracket is mainly used for power plant steam piping or boiler equipment, thermal displacement in operation and its equipment and devices. According to the pipeline force calculation to determine the spring support work and thermal displacement requirements, the factory will be spring support according to the design load for rectification: that is, the spring pre-pressure and the position of the set cold load; at the same time marked on the cold theoretical theoretical working position.
Hanger
Spring hanger in the factory before the manufacturer for the calibration, when installed to the pipeline and equipment, make the relevant thread adjustment, will be set pin disengagement, then the actual bearing spring is the design of the required cold load.
Two, model, type
Variable spring hanger has four series, mainly designed by the Northwest Electric Power Design Institute of the T1, T2, T3, T4, T5 type series, East China Electric Power Design Institute of the TH1, TH2, TH3 type series, TD series (JB/J8130.2-1999) and the Chemical Engineering Institute of the VS series, the basic characteristics of the series are the same, the load carrying capacity of the spring is the cold load required by the design. The basic characteristics of the same, bearing capacity of 20daN-21000daN. structural forms are mainly suspended, support type and parallel suspension support type.
(C), T, TH structure and model number:
This hanger is divided into three models according to the installation form, namely, middle connecting hanger spring TH 1, upper and lower connecting hanger spring TH 2, and bracket spring TH 3.
TH 1 is divided into three types: A, B and C;
TH 1 A ( T1 ) is a single-ear connection hanger spring;
TH 1 B ( T2 ) is a double-ear connection hanger spring;
TH 1 C is a thread connection hanger spring;
These three types of springs are mainly used for hanging on the steel beams, pipe beams and base plates.
TH 2 ( T3 ) is suitable for mounting on steel beams;
TH 3 ( T4 ) is mainly used for resting on foundations, steel beams, and floor slabs;
T5 Parallel connection hanger type.
(D), VS, TD structure and type expression:
Variable spring support is mainly composed of cylindrical coil spring, displacement indicator plate, shell and elastic nut and other parts.
Variable spring hanger is divided into A, B, C, D, E, F, G seven types according to the different installation methods.
Type A ---- upper thread suspension type;
Type B ---- single lug suspension type;
Type C ---- double lug suspension type;
Type D ---- upper adjustable shelving type;
Type E ---- lower adjustable shelving type;
Type F ---- support shelving type;
Type G ---- Parallel suspension type;