The support and hanger are mainly used in the steam pipe or boiler equipment of the power plant, and generate thermal displacement and equipment in operation. According to the calculation of hanger and thermal displacement is determined by the stress requirements of the pipeline, the factory will spring hanger according to the design load setting: spring preload and the cold load position; at the same time marked on the cold state theory work position.

Spring hanger manufacturing factory in the factory are set, when installed to piping and equipment, for the thread adjustment, will set off the spring pin, the actual bearing cold load design is required.

Two, models and types

Variable type spring hanger has four series, is mainly designed by the Northwest Electric Power Design Institute of T1, T2, T3, T4, T5 series, East China Electric Power Design Institute design of TH1, TH2, TH3 series, TD series (JB/J8130.2-1999) design and Design Institute of chemical industry of the VS series, the basic characteristics of the series the same, bearing capacity is 20daN-21000daN. The main structural forms are suspension type, support type and parallel suspension support type.

(three) T and TH structure form and model representation method:

The hanger is divided into an intermediate hanger according to the installation form; the hanger spring TH 1 is connected with the hanger spring TH 2 and the bracket spring TH 3 three models.

TH 1 is divided into three types: A, B and C;

The TH 1 A (T1) is a single lug hanger spring;

The TH 1 B (T2) is the hanger spring for the binaural connection;

TH 1 C threaded hanger spring;

These three types of springs are used mainly for suspension on steel beams, pipe girders, and floor plates.

TH 2 (T3) is suitable for mounting on steel beams;

TH 3 (T4) is mainly used for shelving on foundations, steel beams, and floors;

T5 parallel suspension type.

(four) VS and TD structure form and model representation method:

The variable spring support hanger is mainly composed of a cylindrical spiral spring, a displacement indicator plate, a housing and an elastic nut.

Variable spring hanger is divided into seven types: A, B, C, D, E, F, G.

Type A -- threaded suspension type;

Type B -- single ear suspension type;

Type C - binaural suspension type;

Type D -- adjustment type;

Type E --- down regulation type;

Type F -- support type;

Type G - parallel suspension type