Summary of the invention
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide a kind of efficient pipe bundle heat exchanger that reduces heat-exchanging water consumption.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of pipe bundle heat exchanger, it comprises telescopic housing, be located at the pipe support at housing two ends, wherein connect and be positioned at corresponding pipe support outside and this pipe support and surround the drive end bearing bracket of inlet chamber in one end with described housing, connect and be positioned at corresponding pipe support outside and this pipe support and surround the rear end cap of discharge chamber with the other end of described housing, be set up in two heat exchanger tubes between pipe support, described heat exchanger tube comprises leading section, main pipe, rearward end, the interior diameter of rearward end is greater than main pipe's interior diameter, main pipe's interior diameter is more than or equal to 1.2 times of interior diameter of leading section, described main pipe's length is not less than 0.6 times of heat exchanger entire length, described housing is provided with water inlet and delivery port.
One as the technical scheme of the utility model pipe bundle heat exchanger is improved, and described inlet chamber is inwardly narrow tubaeform, and described discharge chamber is the drum type outwards heaved or spherical.
One as the technical scheme of the utility model pipe bundle heat exchanger is improved, and described main pipe inner side is stretched in described leading section part, and described main pipe stretches into part the inner side of described rearward end.
One as the technical scheme of the utility model pipe bundle heat exchanger is improved, and the interior diameter of the rearward end of heat exchanger tube is more than or equal to main pipe's 1.2 times of interior diameter.
One as the technical scheme of the utility model pipe bundle heat exchanger is improved, and the length ratio between the leading section of heat exchanger tube, main pipe, rearward end is 1:6:3.
One as the technical scheme of the utility model pipe bundle heat exchanger is improved, and described inlet chamber outside is provided with air inlet, and described discharge chamber outside is provided with exhaust outlet, and described air inlet sectional area is not more than 0.5 times of exhaust outlet sectional area.
The beneficial effects of the utility model are: because gas bag heat exchanger allows to exist pressure reduction in technological process, swell refrigeration technology process features is combined, single pipe as heat exchanger tube in heat exchanger is made as to expansion tube, make to need cooling down high-temperature gas to allow import to have pressure drop to outlet, due to gas by expansion short circuit time, volume can increase, gas instantaneous expansion, gas pressure declines, gas externally does work, need to absorb heat from the external world, the process of gas expansion is very fast, have little time to carry out heat exchange with the external world, gas can only be realized by the temperature that reduces self balance of energy, thereby reach the effect of the temperature that reduces self, thereby save widely the consumption of cooling water, reach the effect of energy-saving and emission-reduction.
Detailed description of the invention
Further illustrate detailed description of the invention of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of pipe bundle heat exchanger of the utility model, it comprises telescopic housing 10, be located at the pipe support 12 at housing two ends, wherein connect and be positioned at corresponding pipe support 12 outsides and this pipe support and surround the drive end bearing bracket 22 of inlet chamber 20 in one end with described housing 10, connect and be positioned at corresponding pipe support 12 outsides and this pipe support and surround the rear end cap 33 of discharge chamber 30 with the other end of described housing 10, be set up in two heat exchanger tubes 15 between pipe support 12, described heat exchanger tube 15 comprises leading section 16, main pipe 18, rearward end 19, the interior diameter of rearward end 19 is greater than main pipe 18 interior diameter, main pipe 18 interior diameter is more than or equal to 1.2 times of interior diameter of leading section 16, described main pipe's 18 length is not less than 0.6 times of heat exchanger tube entire length, described housing 10 is provided with water inlet 29 and delivery port 39.Because gas bag heat exchanger allows to exist pressure reduction in technological process, swell refrigeration technology process features is combined, single pipe as heat exchanger tube in heat exchanger is made as to expansion tube, make to need cooling down high-temperature gas to allow import to have pressure drop to outlet, due to gas by expansion short circuit time, volume can increase, gas instantaneous expansion, gas pressure declines, gas externally does work, need to absorb heat from the external world, the process of gas expansion is very fast, have little time to carry out heat exchange with the external world, gas can only be realized by the temperature that reduces self balance of energy, thereby reach the effect of the temperature that reduces self, thereby save widely the consumption of cooling water, reach the effect of energy-saving and emission-reduction.
In offshore oil preliminary working process, not solidifying gas flash system handling process is that the high-temp liquid at the bottom of debutanizing tower tower enters as solidifying gas flash tank by gravity flow, liquid by step-down flash distillation after, most of C4 and light hydrocarbon component more than minority C5 evaporate and become gas, gas is by the cooling rear section C5 of shell-and-tube swelling water cold air bag heat exchanger and the component more than C5 of solidifying gas flash tank are not cooled, be back in flash tank, after gas is cooling by water cooler, enter after the flash distillation of heavy hydrocarbon flash tank, liquid enters debutanizing tower after promoting by pump.The liquid of solidifying gas flash tank does not enter light oil cooler by gravity flow, is cooled to after suitable temperature, enters light oil storage tank stores.The effect of solidifying gas flash system is not that the component below the C4 in light oil is separated by flash distillation, has reached qualified light oil products.
Because allowing the import and export of system, process system there is pressure reduction, when gas passes through tube bank layer, single pipe is realized instantaneous expansion twice, because gas, in the process expanding, entropy enthalpy change occurs, need to absorb heat and reach new balance, thereby realize the self cooling result of gas, reduce the consumption of cooling water, realized energy-saving and cost-reducing effect.The simultaneously reduction of outlet temperature, equal by space in the situation that, the percent of pass of gas is increased, increase the disposal ability of system.
More preferably, described inlet chamber 20 is tubaeform for what inwardly narrow, described discharge chamber 30 is the drum type outwards heaved or spherical, promote the pressure of inlet chamber and heat exchanger tube leading section, reduce the pressure of discharge chamber 30 and heat exchanger tube 15 rearward end 19 simultaneously, form two pressure differential, realize instantaneous expansion twice at single pipe, make gas that entropy enthalpy change occur in flow process, realize oneself's heat absorption from cooling.
More preferably, described main pipe 18 inner sides are stretched in described leading section 16 parts, and described main pipe stretches into 18 parts the inner side of described rearward end 19, forms obvious gas pressure differential, make twice abrupt pressure reduction of γ-ray emission mobile in pipe and entropy enthalpy change occurs, realizing oneself's heat absorption from cooling.
More preferably, the interior diameter of the rearward end 19 of heat exchanger tube 15 is more than or equal to main pipe 18 1.2 times of interior diameter, thereby it is differential to form certain pressure, makes flowing gas have the space of expanding according to this, expansion process generation entropy enthalpy change, realizes oneself's heat absorption from cooling.
More preferably, length ratio between the leading section 16 of heat exchanger tube 15, main pipe 18, rearward end 19 is 1:6:3, length ratio between the leading section 16 of heat exchanger tube 15, main pipe 18, rearward end 19 also can be made as 1:5:2, make main pipe's 18 parts there is enough length and avoid two ends inlet chamber 20 in addition and the pressure reduction impact of discharge chamber 30, make the pressure reduction between inlet chamber 20 and discharge chamber 30 be formed and maintain.Because the diameter of rearward end is slightly large, so the Length Ratio leading section of rearward end 19 is slightly large, pressure reduction is produced and maintain, and increasing space and the area of heat exchange.
More preferably, described inlet chamber 20 outsides are provided with air inlet 25, described discharge chamber 30 outsides are provided with exhaust outlet 35, described air inlet 25 sectional areas are not more than 0.5 times of exhaust outlet 35 sectional areas, by importing and exporting 25 size adjustment air pressure, increase the formation possibility of pressure differential and play structural booster action to maintaining pressure differential.
Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.