Multi-source Shanghai Machinery Co., Ltd.

The disc heat interchanger is the fluid - fluid, the fluid - steam carries on the heat change the ideal equipment. It has the heat transfer efficiency to be high, the heat los is small, the structure compact dexterous, the area is small, the installment clean is convenient, the application is widespread, service life long and so on characteristics. In the same pressure loss situation, its heat transfer coefficient compared to tubular heat exchanger high 3-5 times, the area for the tubular heat exchanger 1/3, the heat recovery rate may reach as high as above 90%. The disc heat interchanger widely applies in professions and so on metallurgy, petroleum, chemical industry, food, drugs manufacture, ships, spinning and weaving, papermaking, is the heating, cooling, the heat recovery, fast antiseptic and so on use fine equipment.

Fourth, flow principle of work

The disc heat interchanger as a result of the slab ripple surface's special function, causes the fluid flows its speed size direction unceasing change along the narrow curving channel, the cause fluid when not the great speed of flow (Rc=200), aroused the intense end to move, thus sped up the fluid boundary layer destruction, strengthened the heat transfer process, sharpened the heat-transfer capability effectively. And enables it to have the structure to be compact, the metal consumption quantity is low, the operation flexibility is big, the heat los is small, the installment, the inspection take apart and wash, the wearability to be strong conveniently, service life long and so on prominent merit. Heat interchanger's flow is becomes by many slabs according to certain craft and the consumer technology work requirement assembly. When assembly a board and the B board arrange alternately, between the slab forms the netted channel four angle holes to form the distribution pipe and the convergence tube, the gasket the cold hot medium seal in the heat interchanger, simultaneously reasonable will be also cold the hot medium to separate does not send the mix. Inside channel cold thermal fluid gap flowing, may the adverse current also be possible to be afloat, the cold thermal fluid carries on the heat change in the flowing process through the wooden partition. Disc heat interchanger's flow combination form are many, is uses the different commutation slab and the different assembly realizes, the flow combination form may divide into the single flow, multi-flows and steam fluid exchange flow, mixture length form. Must choose heat interchanger's flow combination according to the technological conditions.

Fifth, heat interchanger installment

1st, on disc heat interchanger's two compaction board has 4 shackles, for hoisting up when uses, the bridle do not hang on the control, the localization crossbeam or the slab. 2nd, the heat interchanger surroundings must leave leeway 1 meter about space, is advantageous for the overhaul. 3rd, installment of the cold hot medium import and export control, should stipulate the direction connection strictly according to the leaving the plant data plate, otherwise, the heat interchanger performance will come under the influence. 4th, when installs the pipeline, should arrange the valve, the pressure gauge, the thermometer on the pipeline, the flow control valve should install in the heat interchanger entry, should install the discharge valve in the exit. 5th, inside the equipment pipeline must clean up cleanly, prevents the sand and crushed stone to weld sundry goods and so on dregs to enter the heat interchanger, creates the jamming. 6th, works as the use medium not to be unclean, when has the big pellet or the long textile fiber, the entry should be loaded with the filter. 7th, when heat interchanger connection pipelining welding, should build the welding ground in the welding place, refuses to build the grounding in the distant place, causes the galvanic circle to create the damage through the heat interchanger.

Sixth, before the use production, prepares

1st, before the equipment use, should inspect the clamping belt whether to become less crowded, should tighten according to the instruction booklet to size A guarantees all bolts even consistent. 2nd, before the use, to carries on the hydraulic pressure test according to 1.25 time of service pressure minute, guarantees the pressure 20 minutes not to have the divulging only then production. 3rd, before this equipment use, carried on about 20 minutes with the clear running water to clean the circulation then. 4th, should be equipped with bleeder valve opening after the circuitry should discharge in the equipment the air to prevent the air to pause in the equipment, reduces the heat transfer effect. 5th, installment of the cold hot medium import and export control, should stipulate the direction connection strictly according to the leaving the plant data plate. Otherwise, has not been able to display the equipment optimum performance. 6th, before this equipment uses in food, the drugs manufacture production, loosening each bolt, with brown brushes the clean each slab to be clean, should defer to the flow to carry on the even assembly to finish. the 82o-90o hot water carries on 10-20 minute circulation disinfection, starts the material pump immediately, causes the cooling material to remain the slab in the excess water to go against completely, until was completely the material then produces.

BR0.05