Heat exchange device

FIELD: power engineering.

SUBSTANCE: heat exchange device comprising a lower part - a heating and evaporation zone and an upper part - a cooling and condensation zone, a body with heat-insulated walls and nozzles for supply and drain of a heated solution, comprises a longitudinally ribbed pipe located in a mixing chamber of a furnace, at the same time the ribbed pipe exiting the furnace goes into a shell and tube heat exchanger, which comprises a body, three pipes exiting from the ribbed pipe at the angle of 15 degrees, changing into horizontal pipes, at each end of which there is a socket, and seven tubes of identical diametre exit from the each socket, besides, body walls are heat-insulated with a heat insulation material, for instance, penofol, and the body comprises three nozzles for supply and drain of the heated solution and a nozzle for emptying a reservoir, at the same time the device is equipped with a pressure gauge, a safety valve and a tap for coolant filling and has a line of excessive pressure compensation for coolant filling with the device on, which is equipped with a valve, besides, in the device there is a reverse line of the circulating circuit and an expander with a nozzle.

EFFECT: invention increases efficiency, reliability and effectiveness of device operation.

4 dwg

 

The invention relates to shell and tube heat exchange apparatus that can be used as heat exchangers, coolers, condensers and evaporators in the chemical, petrochemical and other industries. The heat exchangers are designed for heating and cooling, refrigerators - cooling (water or other non-toxic, naojiro - and non-explosive refrigerant liquid and gaseous media.

Known heat exchanger according to the patent of Russian Federation №2306514, F28D 7/00, 20.09.2007, containing a distribution chamber with a cover connected to the casing, the tubes connected by walls with segmental cutouts, lens compensator and fitting for tube and pipe space (prototype).

A disadvantage of the known heat exchanger is relatively low efficiency and high cost of manufacture and operation.

The closest analogue to the claimed technical solution is the heat exchanger for heating the liquid containing the lower part of zone heating and evaporation and the upper part of the zone cooling and condensation, building with insulated walls and pipes for input and output of the heated solution (EN 954779 A, F28D 15/02, 30.08.1982).

A disadvantage of the known heat exchanger is low strength and large perfo the operating costs.

Objective of the claimed invention is to improve the efficiency, reliability and economy of operation.

This object is achieved in that the heat exchanger containing the lower part of zone heating and evaporation and the upper part of the zone cooling and condensation, building with insulated walls and pipes for input and output of the heated solution, contains longitudinally finned tube located in the mixing chamber of the furnace, this ribbed pipe, leaving the furnace, passes into the shell and tube heat exchanger, which consists of a body emerging from the finned tubes three inclined at an angle of 15° of the pipe, moving in a horizontal pipe, each end of which is located at the outlet, and each socket goes on seven tubes of the same diameter, and the housing wall insulated thermal insulation material, such as penofolom, and the case has three socket for input and output of the heated solution and the pipe for discharging capacity, this unit is equipped with pressure gauge, safety valve and faucet for a Gulf carrier and has a line compensation excess pressure for the Gulf of fluid at the working apparatus, which is equipped with a valve, in addition, the apparatus has a return line of the circulation loop and the expander with the pipe.

1 shows a General view of the heat exchanger; figure 2 presents the cross-section B-B figure 1 - the lower part of the apparatus, the heating zone and evaporation; 3 shows a section a-a figure 1 - shows a section of the upper part of the device - cooling zone, condensing; figure 4 shows the I figure 1 - the upper part of the heat exchanger.

Heat exchanger, being hermetically sealed heat exchanger contains the lower part 1 - zone heating and evaporation and the upper part of the 2 - zone cooling and condensation, case 3 with insulated walls and pipes 4 and 5 respectively for input and output of the heated solution. In the lower part 1 of a heat exchanger placed longitudinally finned tube 6 located in the mixing chamber 7 of the furnace 8, this ribbed pipe 6, leaving the furnace 8, goes into a shell and tube heat exchanger, which consists of a casing 3, leaving finned tubes 6 three inclined at an angle of 15° pipe 9, moving in a horizontal tube 10, each end of which is located at the outlet 11, and each socket 11 out of seven tubes 12 of the same diameter, and the walls of the housing 3 insulated insulating material, such as penofolom. The housing 3 has three socket: socket 4 - to enter the heated solution and the pipes 13 and 14 to output the heated solution, and the outlet 5B of the lower shell 3 is designed for emptying the container body 3. In addition, the apparatus is equipped with 15 gauge, safety valve 16 and valve 17 for the Gulf of coolant and has a line 18 compensation excess pressure for the Gulf of fluid at the working apparatus, which is equipped with a valve 19, in addition, the apparatus has a return line of the circulation circuit (not shown) and the expander 20 to the pipe 13. In addition, the upper portion of the finned tube 6 by means of two cutting nozzles 21 and 22, respectively upper and lower, connected with finned tube 23.

Heat exchanger operates as follows.

Located in the mixing chamber 7 of the furnace 8, in the area of heating and evaporation heat exchanger, finned tube 6 is filled with water above the lower cut-in pipe 21, so that the finned tube 23 worked on the evaporation of water, and not steam superheat. Under the influence of high temperature (about 600°) in the mixing chamber 7 of the furnace 8 water heats up, boils and turns to vapor (evaporates). It absorbs a large quantity of heat (heat of transformation), which steam is transferred to another colder part 2 of a heat exchanger in the cooling zone and condensation, where the steam condenses and releases the absorbed heat, the heated solution. Next, the condensed liquid is again returned to the zone of heating and evaporation. the Hanks to the tubes 9 are tilted, does not create stagnant zones of the condensate. The solution is continuously fed into the housing 3 through the pipe 4 and then either selected in the process through pipe 14, or is returned in the return line of the circulation loop through the expander 20 and the nozzle 13. The design of the upper part of the heat exchanger enables you to evenly heat the solution, without resorting to forced mixing, when this heat exchanger works in economy mode, blocking the main flow of gas only 3%, thereby creating a tangible obstacles for the passage of gas in the dryer and not affecting the gas flow.

Heat exchanger is a device that combines actually a hermetically sealed heat exchanger, similar to a heat pipe filled with distilled water; and the capacity to heat the working fluid to the boiling point, operating in flow mode.

In the operating mode to set the temperature, the pressure in the lower part of the heat exchanger 460÷480°C, in the top - 50÷60°C. the Performance of heat transfer is 70,000÷80000 kcal/h

Thus, the construction of the claimed heat exchanger improves the efficiency, reliability and efficiency of its work.

Heat exchanger containing the lower part of zone heating and evaporation of the upper part zone cooling and condensation, building with insulated walls and pipes for input and output of the heated solution, characterized in that it contains longitudinally-finned tube located in the mixing chamber of the furnace, this ribbed pipe, leaving the furnace, passes into the shell and tube heat exchanger, which consists of a body emerging from the finned tubes three inclined at an angle of 15° of the pipe, moving in a horizontal pipe, each end of which is located at the outlet, and each socket is published seven tubes of the same diameter, and the housing wall insulated thermal insulation material, such as penofolom, and the case has three socket for input and output of the heated solution and the pipe for discharging capacity, this unit is equipped with pressure gauge, safety valve and faucet for a Gulf carrier and has a line compensation excess pressure for the Gulf of fluid at the working apparatus, which is equipped with a valve, in addition, the apparatus has a return line of the circulation loop and the expander with the pipe.



 

Same patents:

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22 cl, 4 dwg

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