CN212720955U - System for recovering reduction flash steam - Google Patents
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- CN212720955U CN212720955U CN202021298850.1U CN202021298850U CN212720955U CN 212720955 U CN212720955 U CN 212720955U CN 202021298850 U CN202021298850 U CN 202021298850U CN 212720955 U CN212720955 U CN 212720955U
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Abstract
The utility model discloses a system for recovering reduction flash steam, which comprises a flash steam access port, a first air cooler, a second air cooler, a third air cooler, a steam condensate tank, a liquid collecting tank, a pump and a valve, wherein all the parts are connected through pipelines; wherein the first conduit is provided with a first, second and third orifice and the eighth conduit is provided with a fourth, fifth and sixth orifice; the flash steam access port is connected with the first pipeline, and the first hole, the second hole and the third hole in the first pipeline are connected to inlets of the first air cooler, the second air cooler and the third air cooler through the second pipeline, the third pipeline and the fourth pipeline respectively. The utility model relates to a simple structure, recycle surplus 0.4MPa steam on the basis that does not influence original design usage, during the condensate storage tank was collected to make full use of Xinjiang regional wind energy with unnecessary steam condensation one-tenth condensate, can not produce the waste of water resource, had value on probation.
Description
Technical Field
The utility model relates to a polycrystalline silicon processing technology field, concretely relates to system for recovery of reduction flash distillation vapour.
Background
In the existing polysilicon production process, when a system runs under high load stably, 0.4MPa steam is surplus and is directly discharged when the steam is not used completely, so that energy waste is caused. While 0.4MPa steam may not be enough when the system operates at low load and needs to be adjusted according to production conditions, in the prior art, the steam is adjusted when the original reduction furnace operates, but influences are generated on the polycrystalline silicon rod, so that the surface of the silicon rod is abnormal.
Therefore, it is desirable to develop a new system and process for recovery of reducing flash steam, which does not affect the growth of polysilicon rods whether the system is operated at high load or low load.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to solve the technical problem that to prior art not enough, provide a system that reduction flash distillation vapour was retrieved.
The utility model discloses the technical problem that still need to solve provides the technology of utilizing above-mentioned system that reduction flash distillation vapour was retrieved to retrieve reduction flash distillation vapour.
The utility model discloses the thinking: evaporative air cooler AC-12 is for the adsorption tower refrigerated among the prior art, and its design has 3 groups of tube bundles, as long as at present put into use 2 groups of tube bundles just can reach the design value with cooling temperature, process this the utility model discloses it does not have too big influence to the adsorption tower cooling effect to verify. The utility model discloses to be rich in 0.4MPa steam and cool off through AC-12 air cooler 3 rd group tube bank air cooler. The condensate is recycled, and the use cost of the condensate is reduced.
In order to solve the first technical problem, the utility model discloses a system that reduction flash distillation vapour was retrieved, with reduction flash distillation vapour (0.4MPa steam) through the condensation in the pipe bundle in the evaporative air cooler, the lime set after the condensation is arranged to steam lime set jar 3, sends to high temperature water pitcher of condensing after mixing, collects liquid jar 4 promptly and retrieves.
The system for recovering the reduced flash steam comprises a flash steam inlet 1, a first air cooler 21, a second air cooler 22, a third air cooler 23, a steam condensate tank 3, a liquid collecting tank 4, a pump 5 and a valve 6, wherein all the components are connected through a pipeline 7; wherein the first duct 71 is provided with a first aperture 81, a second aperture 82 and a third aperture 83 and the eighth duct 78 is provided with a fourth aperture 84, a fifth aperture 85 and a sixth aperture 86.
Wherein the flash steam inlet 1 is connected with the first pipeline 71, and the first, second and third orifices 81, 82 and 83 on the first pipeline 71 are respectively connected with the inlets 213, 223 and 233 of the first, second and third air coolers 21, 22 and 23 through the second, third and fourth pipelines 72, 73 and 74; outlets 216, 226, 236 of first, second, and third air coolers 21, 22, 23 are connected to fourth, fifth, and sixth orifices 84, 85, and 86 on an eighth conduit by fifth, sixth, and seventh conduits 75, 76, and 77, respectively, and eighth conduit 78 is connected to an inlet of vapor condensate tank 3; the vapor condensate tank 3 is provided with two outlets, wherein one outlet 31 is connected with a ninth pipeline 79, the other end of the ninth pipeline 79 is opened to the atmosphere, the other outlet 32 is connected with a tenth pipeline 710, and the tenth pipeline 710 is connected with the liquid collecting tank 4 through two pumps 51 and 52.
The second pipeline 72, the third pipeline 73 and the fourth pipeline 74 are respectively provided with a fourth valve 64, a third valve 63 and a fifth valve 65; a sixth valve 66, a seventh valve 67 and an eighth valve 68 are respectively arranged on the fifth pipeline 75, the sixth pipeline 76 and the seventh pipeline 77; a ninth valve 69 is arranged at the inlet of the eighth pipeline 78 and the steam condensate tank 3; the ninth conduit 79 is provided with a fifteenth valve 615.
Wherein, the eighth pipeline 78 is further provided with a twenty-fifth orifice 825 between the sixth orifice 86 and the ninth valve 69, and the twenty-fifth orifice 825 is connected with the tenth valve 610 through a twenty-fifth pipeline 725.
The system for recovering the reduced flash steam further comprises a reducing furnace 10, a steam storage tank 11 and a rectifying tower 12.
The reduction furnace 10 is introduced into the rectifying tower 12 through a twenty-sixth pipeline 726, the steam storage tank 11 is introduced into the rectifying tower 12 through a twenty-seventh pipeline 727, the twenty-sixth pipeline 726 and the twenty-seventh pipeline 727 are respectively provided with a twenty-sixth orifice 826 and a twenty-seventh orifice 827, the two orifices are connected through a twenty-eighteen pipeline 728, and the twenty-eighth pipeline 728 is provided with a twelfth valve 612; a twenty-sixth pipeline 726 connecting the twenty-sixth orifice 826 and the reduction furnace 10 is provided with an eleventh valve 611; a twenty-seventh pipeline 727 connecting the twenty-sixth orifice 826 and the flash steam inlet 1 is provided with a first valve 61; a twenty-seventh pipeline 727 connecting the flash steam inlet 1 and the steam storage tank 11 is provided with a second valve 62.
The first air cooler 21, the second air cooler 22 and the third air cooler 23 are evaporative air coolers provided with three groups of parallel tube bundles; wherein one process is used for condensing 0.4MPa steam, the inlets of the corresponding three air coolers are 213, 223 and 233 respectively, and the temperature of the steam at the inlet is 152 ℃.
The first air cooler 21, the second air cooler 22 and the third air cooler 23 are respectively provided with three inlets 211, 212, 213, 221, 222, 223, 231, 232 and 233; the first air cooler 21, the second air cooler 22 and the third air cooler 23 are respectively provided with three outlets 214, 215, 216, 224, 225, 226, 234, 235 and 236.
The system for recovering the reducing flash steam further comprises an adsorption tower hot water inlet 9; wherein, the hot water inlet 9 of the adsorption tower is connected with an eleventh pipeline 711, and the seventh orifice 87, the eighth orifice 88, the ninth orifice 89, the tenth orifice 810, the eleventh orifice 811 and the twelfth orifice 812 on the eleventh pipeline 711 are respectively connected with the inlets 211, 212, 221, 222, 231 and 232 of the first air cooler 21, the second air cooler 22 and the third air cooler 23 through a twelfth pipeline 712, a thirteenth pipeline 713, a fourteenth pipeline 714, a fifteenth pipeline 715, a sixteenth pipeline 716 and a seventeenth pipeline 717; the outlets 214, 215, 224, 225, 234, 235 of the first, second, and third air coolers 21, 22, 23 are connected to thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth orifices 813, 814, 815, sixteenth, 817, 818 on a twenty-fourth duct 724 by eighteenth, nineteenth, twentieth, twenty-first, twenty-second, and twenty- third ducts 718, 719, respectively; the outlet of the twenty-fourth conduit 724 is provided with a fourteenth valve 614.
Wherein, the joint of the hot water inlet 9 of the adsorption tower and the eleventh pipeline 711 is provided with a thirteenth valve 613, and simultaneously, the hot water of the adsorption tower is pumped into AC-12a, AC-12b and AC-12c by a pump.
Wherein, the eleventh duct 711 is provided with a seventh orifice 87, an eighth orifice 88, a ninth orifice 89, a tenth orifice 810, an eleventh orifice 811, a twelfth orifice 812; twenty-fourth conduit 724 is provided with thirteenth apertures 813, fourteenth apertures 814, fifteenth apertures 815, sixteenth apertures 816, seventeenth apertures 817, eighteenth apertures 818.
Wherein the nineteenth, twentieth, twenty-first and twenty- second orifices 822, 823, 824 on the eleventh duct 711 and the twenty-fourth duct 724, respectively, are blind-sealed off.
Wherein, the system for recovering the reducing flash steam further comprises a steam trap 13.
Wherein, the top end beside the first orifice 81 of the first pipeline 71 is provided with a twenty-eighth orifice 828, and the twenty-eighth orifice 828 is sequentially connected with a sixteenth valve 616, a steam trap 13 and a seventeenth valve 617 through a twenty-ninth pipeline 729; the twenty-ninth conduit 729 is further provided with a twenty-ninth orifice 829, the twenty-ninth orifice 829 being connected to the eighteenth valve 618 by a thirtieth conduit 730, and then merging with the twenty-ninth conduit 729.
In the system for recovering the reduction flash steam,
wherein, 0.4MPa steam is flashed out from the reducing furnace 10; the steam storage tank 11 is a source of 0.5MPa steam, namely 0.5MPa steam which is sent from a power plant to the device directly through a pipeline after passing through a temperature reduction and pressure reduction device together with condensate.
Wherein, the ninth valve 69 is a valve with a reserved opening; the fifteenth valve 615 is an air release valve, facing the atmosphere; the thirteenth valve 613 is a general valve for the hot water inlet 9 of the adsorption tower to enter the air coolers 21, 22 and 23; the fourteenth valve 614 is a cold water outlet main valve cooled by the air coolers 21, 22 and 23; the tenth valve 610 is used for sampling and analyzing, and condensed water can be discharged to the steam condensed water tank 3 only after all pipelines are replaced to be qualified; the twelfth valve 612 is a crossover valve of 0.4MPa to 0.5MPa vapor to switch the reduction flash 0.4MPa vapor and 0.5MPa vapor; the eleventh valve 611 is a main valve from the reduction furnace 10 to the rectifying tower 12, so that a 0.4MPa steam source provided by the reduction furnace 10 can be cut off under special conditions, the valve is a valve for reducing and flashing 0.4MPa steam to a boundary area of the device, is normally open, and can be closed when the two devices need to be overhauled or cut off to be connected; the second valve 62 is an outlet valve of the temperature and pressure reducing device, is always opened in the prior art before being transformed, and is closed before construction because 0.5MPa steam is not used after the practical transformation; sixteenth valve 616, seventeenth valve 617 and eighteenth valve 618 are front and back hand valves of steam trap 13.
When condensate enters the steam condensate tank 3, the liquid level, the pressure and the temperature need to be noticed, overtemperature and overpressure are prevented, the emptying valve is put into use in time, and when the liquid level of the steam condensate tank 3 rises, the double pumps 51 and 52 are connected to the working section to start to operate in time, so that overload operation of a single pump is prevented, and external operation is performed for multiple times of inspection vibration and temperature. The steam condensate tank 3 is provided with a magnetic turning plate liquid level meter and an in-situ pressure gauge, and a remote transmission liquid level meter, a remote transmission pressure display and a temperature display are operated in the magnetic turning plate liquid level meter.
In addition, throw and use the back and operate many notes pipeline and equipment outward and take place the liquid and hit the phenomenon, the utility model discloses a set up steam trap 13 and solve this problem, operating personnel confirms through steam trap back steam, lime set discharge.
Has the advantages that: compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses the technique is retrieved 0.4MPa steam through the air cooling system, arranges the lime set and maintains the system desalination water balance in the lime set jar.
2. The utility model discloses retrieve 0.4MPa steam under the reducing furnace growth condition not influencing, guaranteed polycrystalline silicon rod's output and quality.
3. The utility model relates to a simple structure, recycle surplus 0.4MPa steam on the basis that does not influence original design usage, during the condensate storage tank was collected to make full use of Xinjiang regional wind energy with unnecessary steam condensation one-tenth condensate, can not produce the waste of water resource, had value on probation.
4. The utility model discloses the small investment, take effect soon, efficient, the water shortage of Xinjiang district is favorable to energy saving and consumption reduction, cost reduction increase, and the lime set of retrieving can regard as lithium bromide unit, heating water etc. and various usage all have certain recovery benefit.
5. The utility model discloses simple process, the operation is convenient, adjust elasticity big, entire system factor of safety is high, can be according to the long-term steady operation of system's requirement.
Drawings
These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic view of the inlet and outlet of the air cooler.
Detailed Description
The utility model discloses the technical problem that still need to solve provides the technology of utilizing above-mentioned system that reduction flash distillation vapour was retrieved to retrieve reduction flash distillation vapour.
Example 1: in the prior art, an evaporative air cooler AC-12 is used for cooling an adsorption tower, 3 groups of tube bundles are designed, the cooling temperature can reach a design value only by using 2 groups of tube bundles, as shown in fig. 1 and 2, the embodiment improves the existing device so as to cool the residual 0.4MPa steam through the 3 rd group of tube bundle air coolers of the AC-12 air cooler, condensed condensate is discharged to a steam condensate tank 3 and is sent to a high-temperature condensate tank after being mixed, namely, a liquid collecting tank 4 is recycled, so that the purposes of recycling the condensate and reducing the use cost of the condensate are achieved.
Specifically, the system for recovering the reduced flash steam comprises a flash steam inlet 1, a first air cooler 21, a second air cooler 22, a third air cooler 23, a steam condensate tank 3, a liquid collecting tank 4, a pump 5 and a valve 6, wherein all the components are connected through a pipeline 7; wherein the first duct 71 is provided with a first aperture 81, a second aperture 82 and a third aperture 83 and the eighth duct 78 is provided with a fourth aperture 84, a fifth aperture 85 and a sixth aperture 86.
Wherein the flash steam inlet 1 is connected with the first pipeline 71, and the first, second and third orifices 81, 82 and 83 on the first pipeline 71 are respectively connected with the inlets 213, 223 and 233 of the first, second and third air coolers 21, 22 and 23 through the second, third and fourth pipelines 72, 73 and 74; outlets 216, 226, 236 of first, second, and third air coolers 21, 22, 23 are connected to fourth, fifth, and sixth orifices 84, 85, and 86 on an eighth conduit by fifth, sixth, and seventh conduits 75, 76, and 77, respectively, and eighth conduit 78 is connected to an inlet of vapor condensate tank 3; the vapor condensate tank 3 is provided with two outlets, wherein one outlet 31 is connected with a ninth pipeline 79, the other end of the ninth pipeline 79 is opened to the atmosphere, the other outlet 32 is connected with a tenth pipeline 710, and the tenth pipeline 710 is connected with the liquid collecting tank 4 through two pumps 51 and 52.
The second pipeline 72, the third pipeline 73 and the fourth pipeline 74 are respectively provided with a fourth valve 64, a third valve 63 and a fifth valve 65; a sixth valve 66, a seventh valve 67 and an eighth valve 68 are respectively arranged on the fifth pipeline 75, the sixth pipeline 76 and the seventh pipeline 77; a ninth valve 69 is arranged at the inlet of the eighth pipeline 78 and the steam condensate tank 3; the ninth conduit 79 is provided with a fifteenth valve 615.
Wherein, the eighth pipeline 78 is further provided with a twenty-fifth orifice 825 between the sixth orifice 86 and the ninth valve 69, and the twenty-fifth orifice 825 is connected with the tenth valve 610 through a twenty-fifth pipeline 725.
The system for recovering the reduced flash steam further comprises a reducing furnace 10, a steam storage tank 11 and a rectifying tower 12.
The reduction furnace 10 is introduced into the rectifying tower 12 through a twenty-sixth pipeline 726, the steam storage tank 11 is introduced into the rectifying tower 12 through a twenty-seventh pipeline 727, the twenty-sixth pipeline 726 and the twenty-seventh pipeline 727 are respectively provided with a twenty-sixth orifice 826 and a twenty-seventh orifice 827, the two orifices are connected through a twenty-eighteen pipeline 728, and the twenty-eighth pipeline 728 is provided with a twelfth valve 612; a twenty-sixth pipeline 726 connecting the twenty-sixth orifice 826 and the reduction furnace 10 is provided with an eleventh valve 611; a twenty-seventh pipeline 727 connecting the twenty-sixth orifice 826 and the flash steam inlet 1 is provided with a first valve 61; a twenty-seventh pipeline 727 connecting the flash steam inlet 1 and the steam storage tank 11 is provided with a second valve 62.
The first air cooler 21, the second air cooler 22 and the third air cooler 23 are evaporative air coolers provided with three groups of parallel tube bundles; wherein one process is used for condensing 0.4MPa steam, the inlets of the corresponding three air coolers are 213, 223 and 233 respectively, and the temperature of the steam at the inlet is 152 ℃.
The first air cooler 21, the second air cooler 22 and the third air cooler 23 are respectively provided with three inlets 211, 212, 213, 221, 222, 223, 231, 232 and 233; the first air cooler 21, the second air cooler 22 and the third air cooler 23 are respectively provided with three outlets 214, 215, 216, 224, 225, 226, 234, 235 and 236.
The system for recovering the reducing flash steam further comprises an adsorption tower hot water inlet 9; wherein, the hot water inlet 9 of the adsorption tower is connected with an eleventh pipeline 711, and the seventh orifice 87, the eighth orifice 88, the ninth orifice 89, the tenth orifice 810, the eleventh orifice 811 and the twelfth orifice 812 on the eleventh pipeline 711 are respectively connected with the inlets 211, 212, 221, 222, 231 and 232 of the first air cooler 21, the second air cooler 22 and the third air cooler 23 through a twelfth pipeline 712, a thirteenth pipeline 713, a fourteenth pipeline 714, a fifteenth pipeline 715, a sixteenth pipeline 716 and a seventeenth pipeline 717; the outlets 214, 215, 224, 225, 234, 235 of the first, second, and third air coolers 21, 22, 23 are connected to thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth orifices 813, 814, 815, sixteenth, 817, 818 on a twenty-fourth duct 724 by eighteenth, nineteenth, twentieth, twenty-first, twenty-second, and twenty- third ducts 718, 719, respectively; the outlet of the twenty-fourth conduit 724 is provided with a fourteenth valve 614.
Wherein, the joint of the hot water inlet 9 of the adsorption tower and the eleventh pipeline 711 is provided with a thirteenth valve 613, and simultaneously, the hot water of the adsorption tower is pumped into AC-12a, AC-12b and AC-12c by a pump.
Wherein, the eleventh duct 711 is provided with a seventh orifice 87, an eighth orifice 88, a ninth orifice 89, a tenth orifice 810, an eleventh orifice 811, a twelfth orifice 812; twenty-fourth conduit 724 is provided with thirteenth apertures 813, fourteenth apertures 814, fifteenth apertures 815, sixteenth apertures 816, seventeenth apertures 817, eighteenth apertures 818.
Wherein the nineteenth, twentieth, twenty-first and twenty- second orifices 822, 823, 824 on the eleventh duct 711 and the twenty-fourth duct 724, respectively, are blind-sealed off.
Wherein, the system for recovering the reducing flash steam further comprises a steam trap 13.
Wherein, the top end beside the first orifice 81 of the first pipeline 71 is provided with a twenty-eighth orifice 828, and the twenty-eighth orifice 828 is sequentially connected with a sixteenth valve 616, a steam trap 13 and a seventeenth valve 617 through a twenty-ninth pipeline 729; the twenty-ninth conduit 729 is further provided with a twenty-ninth orifice 829, the twenty-ninth orifice 829 being connected to the eighteenth valve 618 by a thirtieth conduit 730, and then merging with the twenty-ninth conduit 729.
Example 2: recovery of reduced flash steam using the System described in example 1
The pipeline before the application is purged and pressurized to be qualified; prior to use, valves 62, 63, 64, 65, 66, 67, 68, 69, 610, 613, 614, 615, 618 are closed; the valves 61, 611, 612, 616, 617 are open.
The specific use comprises the following steps:
s1: the external operation slowly opens valve 61, and valves 611 and 612 are also in an open state, thereby communicating steam trap 13 through conduits 728, 727, 71 and 729;
s2: heating the pipes by steam in the inlet pipelines 727, 71, 729 and 730 to quickly flush dirt in the pipes, preventing the dirt from blocking the valves 616, 617 and 618, and meanwhile, slowly raising the temperature by introducing 0.4MPa steam (raising the temperature for 5 minutes and raising the temperature for 1 ℃) to ensure that the water delivery is normal, and closing the valves 617 and 618 when the heating of the pipes is finished;
wherein the steam comes from reduction flash evaporation 0.4MPa steam, passes through a valve 611, passes through pipelines 728 and 727, and then controls the steam amount through a valve 61;
wherein, whether the water delivery is normal is judged through a condensate water outlet behind the steam trap 13, and the water delivery is normal as long as no leakage point exists except the water outlet of the pipeline;
the completion of the heating pipe is judged by observing condensate beside the steam trap 13, namely the discharged condensate is turbid, then the discharged condensate is clean, when the temperature of the pipeline reaches the temperature close to that of steam, the discharged condensate is the steam, and the completion of the heating pipe is shown at the moment.
S3: after the temperature rise in the step S1 is normal, the air cooler 21 is ready to be put into use, the internal operation observes the running conditions of three fans in the air cooler 21, as long as the fans run (AC-12 ensures 50% of the running load of the fans), the external operation is informed to open the valves 66 and 610 first, then the valve 63 is opened slowly, the internal operation observes the FI054 steam flow on the surface of the air cooler 21, the flow of the air cooler 21 is controlled to be 2t/h just by starting to control, and the change of the fi0540.4 mpa steam flow meter is noticed to prevent the steam flow from exceeding the maximum value; and (5) observing the water yield of the twenty-fifth pipeline 725 by an external operation, sampling and analyzing, informing the dispatching, and merging the water yield and the sampling and analyzing into the steam condensate tank 3 in the system after the sampling and analyzing are qualified. Valve 69 is opened first.
Wherein, the normal temperature rise means that 0.4MPa steam can enter the air cooler only after reaching a certain temperature (152 ℃), that is, the steam entering the air cooler enters the air cooler after the temperature is normal;
the main purpose of opening the valves 66 and 610 and then slowly opening the valve 63 is to condense the 0.4MPa vapor of the reduction flash evaporation through the first group of tube bundle air coolers, discharge the condensed vapor to the trench at the valve 10, and integrate the condensed vapor into the system after the sampling is qualified.
S4: the air cooler 22 and the air cooler 23 are put into use in sequence according to S3, and the sample is also sampled and analyzed at the valve 610, i.e., at the outlet of the twenty-fifth pipeline 725, and the sample is merged into the vapor condensate tank 3 in the system after the sample is qualified.
S5: the liquid in the vapor condensate tank 3 is transferred to the liquid collecting tank 4 by the pump 52.
In steps S3 and S4, when the condensed water enters the vapor condensed water tank 3, the liquid level, pressure and temperature need to be paid attention to prevent over-temperature and over-pressure, and the vent valve 615 is put into use in time.
In step S5, if the liquid level of the vapor condensate tank 3 rises, the operation of the two pumps (the pumps 51 and 52 operate simultaneously) is started in time to connect the working section, so as to prevent the single pump from running in an overload manner, and the external operation is performed to detect vibration and temperature.
Wherein, the steam condensate tank 3 is provided with a magnetic turning plate liquid level meter and an in-situ pressure gauge, and a remote transmission liquid level meter, a remote transmission pressure display and a temperature display are operated inside.
Meanwhile, in the above process of recovering the reducing flash steam, the valves 613 and 614 may be in a closed state, i.e. the other two pipes of the air cooler are not used; the valves 613 and 614 can also be opened to put the other two pipes of the air cooler into use (prior art); namely, the hot water of the adsorption tower is cooled by passing through three air coolers from the inlet 9 and converged to the twenty-fourth pipeline 724, and then the outlet of the pipeline is introduced into the adsorption unit of the rectifying tower 12.
In the process, the temperature difference between each group of steam and the water channel is large, the expansion coefficients are different, the pipe box is easy to pull and damage, and the valve needs to be slowly adjusted when the valve is started and stopped.
The AC-12a/b/c changes the hot water into 0.4MPa steam, each group of tube bundles can meet the flow of 6t/h through calculation, the pressure drop is 43KPa under the condition, the flow rate is 30.5m/s, the external operation controls and adjusts the flow of the steam entering each group of AC12 according to the flow display of the internal operation steam flow meter FI054, and the flow of each group of tube bundles is ensured not to exceed 6t/h so as to avoid overhigh flow rate.
The utility model provides a train of thought and method of system that reduction flash distillation vapour was retrieved, the method and the way that specifically realize this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary skilled person in this technical field, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.
Claims (10)
1. A system for recovering reduction flash steam is characterized by comprising a flash steam inlet (1), a first air cooler (21), a second air cooler (22), a third air cooler (23), a steam condensate tank (3), a liquid collecting tank (4), a pump (5) and a valve (6), wherein all the components are connected through a pipeline (7);
wherein the first duct (71) is provided with a first aperture (81), a second aperture (82) and a third aperture (83), and the eighth duct (78) is provided with a fourth aperture (84), a fifth aperture (85) and a sixth aperture (86);
the flash steam inlet (1) is connected with a first pipeline (71), and a first orifice (81), a second orifice (82) and a third orifice (83) on the first pipeline (71) are respectively connected with inlets (213), (223), (233) of the first air cooler (21), the second air cooler (22) and the third air cooler (23) through a second pipeline (72), a third pipeline (73) and a fourth pipeline (74); the outlets (216), (226), (236) of the first air cooler (21), the second air cooler (22), and the third air cooler (23) are connected to the fourth port (84), the fifth port (85), and the sixth port (86) on the eighth pipe through a fifth pipe (75), a sixth pipe (76), and a seventh pipe (77), respectively, and the eighth pipe (78) is connected to the inlet of the vapor condensate tank (3); the steam condensate tank (3) is provided with two outlets, wherein one outlet (31) is connected with a ninth pipeline (79), the other end of the ninth pipeline (79) is communicated with the atmosphere, the other outlet (32) is connected with a tenth pipeline (710), and the tenth pipeline (710) is connected with the liquid collecting tank (4) through two pumps (51) and (52);
wherein the second pipeline (72), the third pipeline (73) and the fourth pipeline (74) are respectively provided with a fourth valve (64), a third valve (63) and a fifth valve (65); a sixth valve (66), a seventh valve (67) and an eighth valve (68) are respectively arranged on the fifth pipeline (75), the sixth pipeline (76) and the seventh pipeline (77); a ninth valve (69) is arranged at the inlet of the eighth pipeline (78) and the steam condensate tank (3); the ninth conduit (79) is provided with a fifteenth valve (615).
2. A system for reductive flash vapor recovery according to claim 1 wherein the eighth conduit (78) further comprises a twenty-fifth port (825) between the sixth port (86) and the ninth valve (69), the twenty-fifth port (825) being connected to the tenth valve (610) via a twenty-fifth conduit (725).
3. A system for reductive flash vapor recovery according to claim 1 further comprising a reduction furnace (10) vapor storage tank (11), and a rectification column (12).
4. A system for reducing flash steam recovery according to claim 3, wherein the reduction furnace (10) is connected to the rectifying tower (12) through a twenty-sixth pipeline (726), the steam storage tank (11) is connected to the rectifying tower (12) through a twenty-seventh pipeline (727), the twenty-sixth pipeline (726) and the twenty-seventh pipeline (727) are respectively provided with a twenty-sixth orifice (826) and a twenty-seventh orifice (827), the two orifices are connected through a twenty-eighteen pipeline (728), and the twenty-eighth pipeline (728) is provided with a twelfth valve (612); a twenty-sixth pipeline (726) connected between the twenty-sixth orifice (826) and the reduction furnace (10) is provided with an eleventh valve (611); a twenty-seventh pipeline (727) connecting the twenty-sixth hole (826) and the flash steam access port (1) is provided with a first valve (61); a twenty-seventh pipeline (727) connected between the flash steam access port (1) and the steam storage tank (11) is provided with a second valve (62).
5. The system for reductive flash vapor recovery according to claim 1, wherein the first air cooler (21), the second air cooler (22) and the third air cooler (23) are evaporative air coolers provided with three groups of tube bundles connected in parallel.
6. A system for reductive flash steam recovery according to claim 5 wherein the first air cooler (21), the second air cooler (22) and the third air cooler (23) are respectively provided with three inlets (211), (212), (213), (221), (222), (223), (231), (232) and (233); the first air cooler (21), the second air cooler (22) and the third air cooler (23) are respectively provided with three outlets (214), (215), (216), (224), (225), (226), (234), (235) and (236).
7. A system for reductive flash vapor recovery according to claim 1 further comprising an adsorption tower hot water inlet (9); wherein, the hot water inlet (9) of the adsorption tower is connected with an eleventh pipeline (711), and a seventh orifice (87), an eighth orifice (88), a ninth orifice (89), a tenth orifice (810), an eleventh orifice (811) and a twelfth orifice (812) on the eleventh pipeline (711) are respectively connected with the inlets (211), (212), (221), (222), (231) and (232) of the first air cooler (21), the second air cooler (22) and the third air cooler (23) through a twelfth pipeline (712), a thirteenth pipeline (713), a fourteenth pipeline (714), a fifteenth pipeline (715), a sixteenth pipeline (716) and a seventeenth pipeline (717); the outlets (214), (215), (224), (225), (234), (235) of the first, second, and third air coolers (21, 22, 23) are connected to a thirteenth orifice (813), a fourteenth orifice (814), a fifteenth orifice (815), a sixteenth orifice (816), a seventeenth orifice (817), and an eighteenth orifice (818) on a fourteenth conduit (724) through an eighteenth conduit (718), a nineteenth conduit (719), a twentieth conduit (720), a twenty-first conduit (721), a twenty-second conduit (722), and a twenty-third conduit (723), respectively; a fourteenth valve (614) is arranged at the outlet of the twenty-fourth pipeline (724);
wherein, a thirteenth valve (613) is arranged at the joint of the hot water inlet (9) of the adsorption tower and the eleventh pipeline (711);
wherein the eleventh duct (711) is provided with a seventh aperture (87), an eighth aperture (88), a ninth aperture (89), a tenth aperture (810), an eleventh aperture (811), a twelfth aperture (812); twenty-fourth conduit (724) is provided with thirteenth apertures (813), fourteenth apertures (814), fifteenth apertures (815), sixteenth apertures (816), seventeenth apertures (817), eighteenth apertures (818).
8. A system for reductive flash vapor recovery according to claim 7 wherein the nineteenth orifice (819), the twentieth orifice (820), the twenty-first orifice (821) on the eleventh conduit (711) and the twenty-second orifice (822), the twenty-third orifice (823), the twenty-fourth orifice (824) on the twenty-fourth conduit (724) are respectively sealed off with blind seals.
9. A system for reductive flash steam recovery according to claim 1 further comprising a steam trap (13).
10. The system for reducing flash steam recovery according to claim 9, wherein a twenty-eighth orifice (828) is arranged at the top end of the first pipeline (71) beside the first orifice (81), and the twenty-eighteenth orifice (828) is sequentially connected with a sixteenth valve (616), a steam trap (13) and a seventeenth valve (617) through a twenty-ninth pipeline (729); the twenty-ninth pipeline (729) is further provided with a twenty-ninth orifice (829), and the twenty-ninth orifice (829) is connected with the eighteenth valve (618) through the thirtieth pipeline (730) and then merged with the twenty-ninth pipeline (729).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021298850.1U CN212720955U (en) | 2020-07-06 | 2020-07-06 | System for recovering reduction flash steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021298850.1U CN212720955U (en) | 2020-07-06 | 2020-07-06 | System for recovering reduction flash steam |
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| CN212720955U true CN212720955U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021298850.1U Active CN212720955U (en) | 2020-07-06 | 2020-07-06 | System for recovering reduction flash steam |
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| CN (1) | CN212720955U (en) |
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