& does relevant recommendations: the flexible joint, stainless steel corrugated compensator, pine set limit to pull expansion 】 is gongyi city full state pipeline equipment co., LTD. The main business of our company has been made as a special equipment manufacturing license and ISO quality management system certification of qualified companies, the company management concept: the factory in order to "customer needs is our goal" principle, wholeheartedly for the customers with excellent products, reasonable prices, fast delivery cycle, professional technical support and perfect after-sales service. In the future, full state is full of confidence and hope, was determined in a more high quality brand and good service, sincere cooperation with customers at home and abroad, to do the northern area of the thermal compensation smoke duct equipment industry's first brand.


Pulverized coal pipe dedicated 3 d corrugated compensator model example
Example: MSW450 x 8 j / 200 - L
Said: coal dedicated 3 d corrugated compensator, nominal diameter is 450 mm, wave number is 8, offsets 200 mm corrugated compensator, L length for our products.

Pulverized coal pipe special scope of application of three dimensional corrugated compensator
Suitable for pulverized coal, hot atmosphere solid two phase fluid, velocity of 15 ∽ 30 m/s, working temperature 60 ℃, wind 500 or less mmh2o a wind three times, three times the wind, the wind pipe any direction displacement compensation.
Applicable to pressure 0.25 MPa or less with other solid particles, particles of gas-solid two phase fluid thermal displacement of the requirements of the piping system.

Pulverized coal pipe dedicated 3 d the performance characteristics of corrugated compensator
High temperature resistant, not powder leakage, no accumulated powder small displacement stiffness; Able to absorb any direction displacement, flexible good guarantee boiler and piping expansion freely; Easy installation and maintenance, simple hanger and long service life, comprehensive investment provinces. Widely used in the 100 ∽ 600 mw generating units, fundamentally solve the problem of the coal powder leakage, ensure the normal safe operation of the unit.

Pulverized coal pipe dedicated 3 d the material of corrugated compensator
Corrugated pipe is made of 1 cr18ni9ti, took over from low carbon alloy wear resistant steel manufacturing, has a good welding and wear-resisting performance.

Pulverized coal pipe special three-dimensional corrugated compensator selection and installation requirements
5.1 pulverized coal pipe special three-dimensional corrugated compensator can absorb the axial displacement (X), arbitrary (Y) to the lateral displacement and axial offsets (Xo), lateral offsets (Ymm) can satisfy the requirement of various units.
5.2 for more than 200 mw large thermal power unit, power boiler burner and the pulverized coal pipe outlet above the vertical displacement of 200 mm, horizontal displacement, more than 40 mm, expansion joint installed as close as possible to the burner, and set a fixed bracket, isolation outside the deformation of the pipeline stent 5 make the compensator is mainly to absorb the displacement of the boiler installation method as shown in the following three:
5.2.1 near the burner installed at the entrance level, vertical displacement of the boiler, boiler and pulverized coal pipe any direction of displacement of compensator is mainly through the lateral deflection and a small amount of axial displacement and compression to absorb. In order to reduce wear and flow resistance, the product according to the state of cold spring installation (partial), amount of cold spring for the vertical displacement at the entrance Δ Y. To ensure that the compensator can work in level state.

5.2.2 near the burner at the entrance to the vertical installation, the compensator is mainly through the expansion and a small amount of lateral deflection to absorb the displacement. To reduce the force, point A compensator according to the state of pretensioning installation.
Note: when ordering the product, such as user puts forward preliminary draft completed by manufacturer, the product delivery length L + Δ X. Such as performed by the user, but before the product installation, through product double-headed stud and nut (3) (4) increase the length of the second set of corrugated pipe each 1/2 Δ X.
Pulverized coal pipe 5.2.3 requires special three-dimensional corrugated compensator axial and lateral offsets a large amount of compensation, axial stiffness and lateral stiffness is less than, so under the condition of the pipeline layout as far as possible choose horizontal installation.
5.2.4 set constant force hanger is mainly used for pipeline, and reducing the weight of the compensator under deformation of the moment. Three-dimensional corrugated compensator stiffness is small, the movement is blocked and will not occur. Therefore, according to the above two installation methods of constant force hanger sometimes can be omitted. Whether government should be set by design department.
5.2.5 from fixed bracket to pulverized coal pipe can be in accordance with the requirements of the compensation between the bellows compensator was designed on section at any level. The weight of the pipe must be just hanging or constant force hanger bearing, are not allowed to use compensator sustain the weight of the pipe.
A compensation section 5.2.6 (furnace) between the fixed bracket or bellows and only allow a compensator, don't allow in a compensator in blended with other type compensator.
5.2.7, lifting and installation when the welding construction, collision wave ? should not damage