Surface heat exchanger

FIELD: heat exchange apparatus.

SUBSTANCE: surface heat exchanger comprises casing provided with bearing lags, lens compensator, pipe bench with branch pipes for supplying and discharging heat-transfer agent, and front water chamber with the baffle that divides it into two sections. One of the sections is provided with the branch pipes for supplying and discharging of the fluid to be heated, and the other section defines the back water chamber. The pipe bench inside the housing is separated by the horizontal baffle provided with the by-pass port interposed between the lens compensator and back water chamber. The top and bottom sections of the pipe bench are separated with the vertical baffles arranged symmetrically to each other.

EFFECT: improved heat exchange and enhanced heat power and reliability.

1 dwg

 

The invention relates to the field of power engineering and can be used in the chemical and energy industries.

Known water-water heater comprising a housing with a tube bundle with partitions and fittings inlet and outlet Teploobmennik environments (GOST 27590-88. Pressurized water heaters, page 3).

The disadvantage of this heater is of considerable length and low productivity, which requires increased space in the boiler room, additional fittings and steel structures.

The known heat exchanger, comprising a housing with a tube bundle with pipe inlet and outlet coolant, front water chamber separated by two partitions into three parts with the nozzle inlet and outlet of the heated environment, the rear water chamber, divided by a partition into two parts, and a removable cover on the flange (Permyakov V.A. and other Heat exchangers OPTO systems supply heat and hot water. Proceedings of skti No. 288, 2002, str-161 - Prototype).

A disadvantage of the known heat exchanger design is the complexity, the greater intensity and reduced reliability due to the presence of trehglazaya connections with gaskets, poor heat transfer in horizontal arrangement of the tubes and installed a vertical partitions.

The inventive solution allows you to save and ensure acivate optimal velocity of the medium in the tube bundle, to reduce the intensity and effort, to provide the necessary cooling of the fluid in reduced dimensions, which leads to improved heat transfer enhancement of heat capacity, stability deaerators, reliability and increase the turnaround time of operation and service life of the heat exchanger.

Proposed surface heat exchanger, comprising a housing with support legs, compensator lens and tube bundle with pipe inlet and outlet coolant, front water chamber with a partition dividing it into two parts, with the nozzle inlet and outlet of the heated medium and rear water chamber, while the tube bundle inside the housing is divided by a horizontal partition wall with an overflow box, located between the lens compensator and rear water chamber, and the upper and lower parts of the tube bundle is divided by vertical partitions mounted symmetrically to each other in mirror image.

The invention is illustrated in the drawing.

Surface heat exchanger includes a housing 1 with the supporting legs 2 and 3, a compensator lens 4 and the beam pipe 5 with the nozzle inlet 6 and outlet 7 of the heat carrier, front water chamber 8 by a partition 9, dividing it into two parts, with the nozzle inlet 10 and outlet 11 of the heated medium and the rear water chamber 12. Tube bundle 5 GNC the ri of the housing 1 is divided by a horizontal partition 13 with an overflow box 14, located between the compensator lens 4 and the rear water chamber 12. The upper and lower parts of the tube bundle 5 is divided by vertical partitions 15, 16, mounted symmetrically to each other in the mirror.

The heat exchanger works as follows. In case 1 in tube bundle 5 through the pipe for supplying coolant 6 receives hot coolant, passing through the upper part of the tube bundle around the vertical partitions 15, 16, goes through the bypass window 14 in the horizontal partition 13 and around the vertical walls 15, 16 in the lower part of the tube bundle, is discharged through pipe 7. Heating medium (water) at a flow rate close to the nominal through the nozzles supplying the heated medium 10 is fed into the front water chamber 8 passes through the tube bundle 5 and the rear water chamber 12 and through the pipe outlet of the heated medium 11 flows to the deaerator. When submitting Teploobmennik media in the device due to separation of the tube bundle of horizontal and vertical partitions are provided a counter-current flow, which allows to obtain the maximum effect on the heating (cooling) environments. The lens compensator 4 with significant changes in temperature environments allows to compensate the difference of linear expansion of the tube bundle and the shell.

Surface heat transfer is IR, including housing with support legs, compensator lens and tube bundle with pipe inlet and outlet coolant, front water chamber with a partition dividing it into two parts, with the nozzle inlet and outlet of the heated medium and rear water chamber, wherein the tube bundle inside the housing is divided by a horizontal partition wall with an overflow box, located between the lens compensator and rear water chamber, and the upper and lower parts of the tube bundle is divided by vertical partitions mounted symmetrically to each other in mirror image.



 

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EFFECT: improved reliability.

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