CN203886220U - Pre-distillation device - Google Patents
Pre-distillation device Download PDFInfo
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- CN203886220U CN203886220U CN201420341522.3U CN201420341522U CN203886220U CN 203886220 U CN203886220 U CN 203886220U CN 201420341522 U CN201420341522 U CN 201420341522U CN 203886220 U CN203886220 U CN 203886220U
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- rectifying tower
- heater
- rectifying
- level
- heat exchanging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Abstract
The utility model discloses a pre-distillation device. The pre-distillation device comprises a pre-distillation tower storage tank, a primary pre-distillation heater, a secondary pre-distillation heater, a pre-distillation tower, a pre-distillation tower cooler, a first mixture cooler and a pre-distillation tower return tank, wherein a dehydrogenated oil mixture output pipe is connected with the primary pre-distillation heater, the secondary pre-distillation heater is connected with the primary pre-distillation heater, the secondary pre-distillation heater is connected to the pre-distillation tower, the pre-distillation tower is connected to the pre-distillation tower cooler and is connected to the primary pre-distillation heater, the pre-distillation tower cooler and the pre-distillation tower return tank are connected by virtue of a pipeline, the pre-distillation tower return tank is connected to the secondary pre-distillation heater, the secondary pre-distillation heater is connected with the first mixture cooler, the first mixture cooler is connected with a first mixture output pipe, and the primary pre-distillation heater is connected with a second mixture output pipe. The pre-distillation device disclosed by the utility model has the advantages of high heat exchange efficiency, high yield, good pre-distillation effect and energy conservation.
Description
Technical field
The utility model relates to a kind ofly produces the pre-rectifier unit in benzene, toluene and dimethylbenzene technique by crude benzol.
Background technology
Benzene, toluene and dimethylbenzene are all very important industrial chemicals, are mainly derived from the coking benzene in petrobenzene and the coking industry in petrochemical process, thereby above-mentioned crude benzol obtains benzene, toluene and dimethylbenzene through the techniques such as separation of purifying.The process for refining of crude benzol mainly contains three classes now: acid wash, hydrofinishing method, extractive distillation method, wherein acid wash is because environmental pollution is seriously eliminated, in conjunction with hydrofinishing and extractive distillation, the applicant provides a kind of new process for refining, it comprise take off in advance heavy, crude benzol is separated into heavy benzol and light benzene, in light benzene, hydrogenation reacts under the effect of catalyst again, obtain benzene, toluene and dimethylbenzene and other light components, again by de-light processing, light components in said mixture and reaction impurities (hydrogen sulfide gas etc.) are removed, thereby obtain semi-finished product BTXS(benzene, toluene, dimethylbenzene and C8, the mixtures such as non-aromatics, be referred to as again dehydrogenated oil mixture), again by pre-rectification process, semi-finished product BTXS is separated into BT(benzene, toluene, the mixture of non-aromatics) and XS(dimethylbenzene, the mixture of C8 etc.), BT is passed in extraction equipment, thereby obtain product non-aromatics, the mixture of benzene and toluene is through in purified petroleum benzin tower apparatus, thereby benzene is separated with toluene, obtain final products benzene, toluene, treatment process by XS through benzenol hydrorefining, isolate final products dimethylbenzene and C8.Above-mentioned technological process complexity, existing equipment can not be realized above-mentioned technique, thereby a covering device need to be set separately realize above-mentioned technique.At semi-finished product BTXS(dehydrogenated oil mixture) be separated in the process of BT and XS and need to adopt pre-rectification process, do not have now a set ofly can save the equipment that the energy can be raised the efficiency again.
Utility model content
The utility model provides a kind of pre-rectifier unit that can realize efficiently above-mentioned pre-rectification process for the problems referred to above.
In order to solve the problems of the technologies described above, the utility model provides a kind of pre-rectifier unit of following design feature, its design feature is to comprise pre-rectifying tower storage tank, pre-rectifying one-level heater, pre-rectifying secondary heater, pre-rectifying tower, pre-rectifying tower cooler, the first mixture cooler and pre-rectifying tower return tank, on pre-rectifying tower storage tank, be connected with dehydrogenated oil mixture and enter pipe and dehydrogenated oil mixture efferent duct, on dehydrogenated oil mixture efferent duct, kinetic pump is housed, the end of dehydrogenated oil mixture efferent duct is connected to pre-rectifying one-level heater, pre-rectifying secondary heater is connected with pre-rectifying one-level heater by pipeline, pre-rectifying secondary heater is connected on pre-rectifying tower by pipeline, one output of pre-rectifying tower is connected on pre-rectifying tower cooler by pipeline, another output is connected on pre-rectifying one-level heater, steam access tube is housed on pre-rectifying tower, cooling water circulation pipe is housed on pre-rectifying tower cooler, pre-rectifying tower cooler is connected by pipeline with pre-rectifying tower return tank, pre-rectifying tower return tank is connected on pre-rectifying secondary heater by pipeline, pre-rectifying secondary heater is connected with the first mixture cooler by pipeline, on the first mixture cooler, be connected with the first mixture efferent duct, on pre-rectifying one-level heater, be connected with the second mixture efferent duct.
Adopt after said structure, dehydrogenated oil mixture enters pipe through dehydrogenated oil mixture and enters successively pre-rectifying one-level heater, pre-rectifying secondary heater by kinetic pump, then enter pre-rectifying tower, carry out distillation by the steam passing into, top is gone out BT component, bottom and is flowed out XS component, BT component can enter pre-rectifying secondary heater, XS component can enter pre-rectifying one-level heater, thereby realize to dehydrogenated oil mixture with heating, take full advantage of heat energy, and employing said structure, above-mentioned good separating effect, can meet pre-rectification process.
As improvement of the present utility model, pre-rectifier unit also comprises pre-rectifying tower reboiler, on pre-rectifying tower reboiler, be connected with conduction oil circulation pipe, one end of pre-rectifying tower reboiler is by pipeline and the discharge end of pre-rectifying tower is connected, the other end is connected to pre-rectifying tower feed end, if separate not thorough from the isolated XS component of pre-rectifying tower, the heat effect that can be passed through pre-rectifying tower reboiler enters pre-rectifying tower again, proceed pre-rectifying, thereby make the effect of pre-rectifying reach best.
Pre-rectifying tower reboiler comprises reboiler tank, reboiler tank inner chamber is partitioned into reboiler feed cavity by ring flange, reboiler heat exchanging chamber and reboiler discharging chamber, described conduction oil circulation pipe comprises and is connected to the oil inlet pipe and the flowline that on reboiler tank and with reboiler heat exchanging chamber, are communicated with, spaced multiple reboiler deflection plate is housed in reboiler heat exchanging chamber, on ring flange, be connected with many reboilers that are communicated with reboiler feed cavity and reboiler discharging chamber respectively through reboiler heat exchanging chamber and both ends by pipe, adopt the high and saving heat energy of the pre-rectifying tower reboiler heat exchange efficiency of said structure.
Pre-rectifying tower comprises pre-rectifying tower body, in pre-rectifying tower body, be equipped with and arrange from top to bottom and spaced multiple float valve tray, multiple float valve trays are positioned at the top of described steam access tube inner extending end, on the tower wall of pre-rectifying tower body, be connected with the pre-rectifying tower feed pipe being connected with described pre-rectifying secondary heater, pre-rectifying tower body bottom is connected with the second mixture effuser being connected with described pre-rectifying one-level heater, and pre-rectifying tower body top is also equipped with and is positioned at above float valve tray and the first mixture effuser that its overhanging end is connected with pre-rectifying tower cooler.The tube section ends that steam access tube stretches in pre-rectifying tower body is equipped with end-plate, described pipeline section bottom is provided with downward opening air inlet, the tube section ends that the first mixture effuser stretches in pre-rectifying tower body is equipped with end-plate, described pipeline section bottom is provided with downward opening discharging opening, adopts the pre-rectifying tower of said structure to have advantages of the high and saving heat energy of pre-rectification efficiency.
Pre-rectifying one-level heater comprises two one-level heater tank bodies of serial connection up and down, one-level heater tank inner chamber is partitioned into one-level heater feed cavity by ring flange, one-level heater heat exchanging chamber and one-level heater discharging chamber, spaced multiple one-level heater baffling plate is housed in one-level heater heat exchanging chamber, on ring flange, be connected with many one-level heaters that are communicated with one-level heater feed cavity and one-level heater discharging chamber respectively through one-level heater heat exchanging chamber and both ends by pipe, the second mixture effuser is connected on the one-level heater tank body on top and is communicated with one-level heater heat exchanging chamber, described the second mixture efferent duct is connected on the one-level heater tank body of bottom and is communicated with one-level heater heat exchanging chamber, the one-level heater heat exchanging chamber of two one-level heater tank bodies passes through pipeline connection, pipeline connection is passed through in the one-level heater discharging chamber of the one-level heater feed cavity of the one-level heater tank body of its middle and upper part and the one-level heater tank body of bottom, described dehydrogenated oil mixture efferent duct is communicated with the one-level heater feed cavity of the one-level heater tank body of bottom, the one-level heater discharging chamber of the one-level heater tank body on top is connected with the one-level heater effuser with pre-rectifying secondary heater, adopt the high and saving heat energy of the pre-rectifying one-level heater heat exchange efficiency of said structure.
Pre-rectifying secondary heater comprises three secondary heater tank bodies of serial connection up and down, secondary heater tank inner chamber is partitioned into secondary heater input and output material chamber by ring flange, secondary heater heat exchanging chamber and secondary heater torus, spaced multiple secondary heater baffling plate is housed in secondary heater heat exchanging chamber, on ring flange, be connected with many secondary heaters that are communicated with secondary heater input and output material chamber and secondary heater torus respectively through secondary heater heat exchanging chamber and both ends by pipe, on described the first mixture cooler, be communicated with the secondary heater heat exchanging chamber on the secondary heater tank body of foot by pipe by the first mixture, on described pre-rectifying tower return tank, be connected to the secondary heater heat exchanging chamber of the secondary heater tank body of topmost by the first mixture runner pipe, the secondary heater heat exchanging chamber of three secondary heater tank bodies passes through pipeline connection, in described secondary heater input and output material chamber, be equipped with its upper and lower separated heater space bar, described pre-rectifying tower feed pipe is communicated with the top in the secondary heater input and output material chamber of the secondary heater tank body of topmost, adopt the high and saving heat energy of the pre-rectifying secondary heater heat exchange efficiency of said structure.
Pre-rectifying tower cooler comprises pre-rectifying tower tank, pre-rectifying tower tank inner chamber is partitioned into pre-rectifying tower input and output material chamber, pre-rectifying tower heat exchanging chamber and pre-rectifying tower torus by ring flange, described cooling water circulation pipe comprises and is connected to the water inlet pipe and the outlet pipe that on pre-rectifying tower tank and with pre-rectifying tower heat exchanging chamber, are communicated with, spaced multiple pre-rectifying tower deflection plate is housed in pre-rectifying tower heat exchanging chamber, on ring flange, is connected with many pre-rectifying towers that are communicated with pre-rectifying tower input and output material chamber and pre-rectifying tower torus respectively through pre-rectifying tower heat exchanging chamber and both ends by pipe; In pre-rectifying tower input and output material chamber, be equipped with its upper and lower separated pre-rectifying tower space bar; Adopt the high and saving heat energy of the pre-rectifying tower cooler heat exchange efficiency of said structure.
In sum, what the utility model can be energy-efficient realizes above-mentioned pre-rectification process, has the advantageous effect that heat exchange efficiency is high, yield is high, pre-rectification effect is good and energy-conservation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of pre-rectifying one-level heater;
Fig. 3 is the structural representation of pre-rectifying secondary heater;
Fig. 4 is the structural representation of pre-rectifying tower;
Fig. 5 is the structural representation of pre-rectifying tower cooler;
Fig. 6 is the structural representation of pre-rectifying tower reboiler.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail:
As shown in Figure 1, pre-rectifier unit provided by the utility model comprises pre-rectifying tower storage tank 1, pre-rectifying one-level heater 3, pre-rectifying secondary heater 4, pre-rectifying tower 5, pre-rectifying tower cooler 6, the first mixture cooler 8, pre-rectifying tower return tank 7 and pre-rectifying tower reboiler 9, arrow in figure represents the flow direction of material, the dehydrogenated oil mixture that solid line in figure represents, the BT component of dotted line representative, the XS component that chain-dotted line represents, the steam of double dot dash line representative, conduction oil and cooling water, on pre-rectifying tower storage tank 1, be connected with dehydrogenated oil mixture and enter pipe 10 and dehydrogenated oil mixture efferent duct 11, on dehydrogenated oil mixture efferent duct 11, kinetic pump 2 is housed, the end of dehydrogenated oil mixture efferent duct 11 is connected to pre-rectifying one-level heater 3, pre-rectifying secondary heater 4 is connected with pre-rectifying one-level heater 3 by pipeline, pre-rectifying secondary heater 4 is connected on pre-rectifying tower 5 by pipeline, one output of pre-rectifying tower 5 is connected on pre-rectifying tower cooler 6 by pipeline, another output is connected on pre-rectifying one-level heater 3, steam access tube 14 is housed on pre-rectifying tower 5, cooling water circulation pipe 15 is housed on pre-rectifying tower cooler 6, pre-rectifying tower cooler 6 is connected by pipeline with pre-rectifying tower return tank 7, pre-rectifying tower return tank 7 is connected on pre-rectifying secondary heater 4 by pipeline, pre-rectifying secondary heater 4 is connected with the first mixture cooler 8 by pipeline, on the first mixture cooler 8, be connected with the first mixture efferent duct 12, on pre-rectifying one-level heater 3, be connected with the second mixture efferent duct 13.On pre-rectifying tower reboiler 9, be connected with conduction oil circulation pipe 16, one end of pre-rectifying tower reboiler 9 is by the feed end that pipeline is connected with the discharge end of pre-rectifying tower 5, the other end is connected to pre-rectifying tower 5.
By reference to the accompanying drawings each equipment in Fig. 1 is elaborated: as depicted in figs. 1 and 2, pre-rectifying one-level heater 3 comprises two one-level heater tank bodies 31 of serial connection up and down, one-level heater tank body 31 inner chambers are partitioned into one-level heater feed cavity 32 by ring flange, one-level heater heat exchanging chamber 33 and one-level heater discharging chamber 34, spaced multiple one-level heater baffling plate 35 is housed in one-level heater heat exchanging chamber 33, on ring flange, be connected with many one-level heaters that are communicated with one-level heater feed cavity 32 and one-level heater discharging chamber 34 respectively through one-level heater heat exchanging chamber 33 and both ends by pipe 36, the second mixture effuser 17 is connected on the one-level heater tank body 31 on top and is communicated with one-level heater heat exchanging chamber 33, the second mixture efferent duct 13 is connected on the one-level heater tank body 31 of bottom and is communicated with one-level heater heat exchanging chamber 33, the one-level heater heat exchanging chamber 33 of two one-level heater tank bodies 31 passes through pipeline connection, the one-level heater feed cavity 32 of the one-level heater tank body 31 of its middle and upper part is passed through pipeline connection with the one-level heater discharging chamber 34 of the one-level heater tank body 31 of bottom, described dehydrogenated oil mixture efferent duct 11 is communicated with the one-level heater feed cavity 32 of the one-level heater tank body 31 of bottom, the one-level heater discharging chamber 34 of the one-level heater tank body 31 on top is connected with the one-level heater effuser 37 with pre-rectifying secondary heater 4.
As shown in figures 1 and 3, pre-rectifying secondary heater 4 comprises three secondary heater tank bodies 41 of serial connection up and down, secondary heater tank body 41 inner chambers are partitioned into secondary heater input and output material chamber 42 by ring flange, secondary heater heat exchanging chamber 43 and secondary heater torus 44, spaced multiple secondary heater baffling plate 45 is housed in secondary heater heat exchanging chamber 43, on ring flange, be connected with many secondary heaters that are communicated with secondary heater input and output material chamber 42 and secondary heater torus 44 respectively through secondary heater heat exchanging chamber 43 and both ends by pipe 46, on described the first mixture cooler 8, be communicated with the secondary heater heat exchanging chamber 43 on the secondary heater tank body 41 of foot by managing 19 by the first mixture, on pre-rectifying tower return tank 7, be connected to the secondary heater heat exchanging chamber 43 of the secondary heater tank body 41 of topmost by the first mixture runner pipe 20, the secondary heater heat exchanging chamber 43 of three secondary heater tank bodies 41 passes through pipeline connection, in secondary heater input and output material chamber 42, be equipped with its upper and lower separated heater space bar 47, pre-rectifying tower feed pipe 16 is communicated with the top in the secondary heater input and output material chamber 42 of the secondary heater tank body 41 of topmost, on the first mixture runner pipe 20, kinetic pump is also housed, not thorough for preventing separation, a point branch road 21 can be set on this kinetic pump, divide branch road 21 to be connected to again on pre-rectifying tower 5 by tube connector.
As shown in Figure 1 and Figure 4, pre-rectifying tower 5 comprises pre-rectifying tower body 51, in pre-rectifying tower body 51, be equipped with and arrange from top to bottom and spaced multiple float valve tray 52, multiple float valve trays 52 are positioned at the top of described steam access tube 14 inner extending ends, on the tower wall of pre-rectifying tower body 52, be connected with the pre-rectifying tower feed pipe 16 being connected with described pre-rectifying secondary heater 4, pre-rectifying tower body 51 bottoms are connected with the second mixture effuser 17 being connected with pre-rectifying one-level heater 3, pre-rectifying tower body 51 tops are also equipped with and are positioned at the first mixture effuser 18 that float valve tray 52 tops and its overhanging end are connected with pre-rectifying tower cooler 6.The tube section ends that steam access tube 14 stretches in pre-rectifying tower body 51 is equipped with end-plate, pipeline section bottom is provided with downward opening air inlet, the tube section ends that the first mixture effuser 18 stretches in pre-rectifying tower body 51 is equipped with end-plate, and pipeline section bottom is provided with downward opening discharging opening.
As shown in Figure 1 and Figure 5, pre-rectifying tower cooler 6 comprises pre-rectifying tower tank 61, pre-rectifying tower tank 61 inner chambers are partitioned into pre-rectifying tower input and output material chamber 62 by ring flange, pre-rectifying tower heat exchanging chamber 63 and pre-rectifying tower torus 64, cooling water circulation pipe 15 comprises and is connected to the water inlet pipe and the outlet pipe that on pre-rectifying tower tank 61 and with pre-rectifying tower heat exchanging chamber, are communicated with, spaced multiple pre-rectifying tower deflection plate 65 is housed in pre-rectifying tower heat exchanging chamber, on ring flange, be connected with many pre-rectifying towers that are communicated with pre-rectifying tower input and output material chamber and pre-rectifying tower torus respectively through pre-rectifying tower heat exchanging chamber and both ends by pipe 66, in pre-rectifying tower input and output material chamber 62, be equipped with its upper and lower separated pre-rectifying tower space bar 67.
As shown in Fig. 1 and Fig. 6, pre-rectifying tower reboiler 9 comprises reboiler tank 91, reboiler tank 91 inner chambers are partitioned into reboiler feed cavity 92 by ring flange, reboiler heat exchanging chamber 93 and reboiler discharging chamber 94, described conduction oil circulation pipe 16 comprises and is connected to the oil inlet pipe and the flowline that on reboiler tank 91 and with reboiler heat exchanging chamber, are communicated with, spaced multiple reboiler deflection plate 95 is housed in reboiler heat exchanging chamber, on ring flange, be connected with many reboilers that are communicated with reboiler feed cavity and reboiler discharging chamber respectively through reboiler heat exchanging chamber and both ends by pipe 96, the bottom of above-mentioned pre-rectifying tower body 51 and middle part are communicated with reboiler feed cavity 92 and reboiler discharging chamber 94 by reboiler runner pipe 22 respectively.
In the present embodiment, the basic structure of the first mixture cooler 8 is identical with pre-rectifying tower cooler 6, its objective is that to make isolated BT component fully cooling.
The above is specific constructive form of the present utility model; the utility model is not restricted to the described embodiments; the art personnel, the equivalent variations based on concrete structure on the utility model and parts are replaced all in protection domain of the present utility model.
Claims (8)
1. a pre-rectifier unit, it is characterized in that comprising pre-rectifying tower storage tank (1), pre-rectifying one-level heater (3), pre-rectifying secondary heater (4), pre-rectifying tower (5), pre-rectifying tower cooler (6), the first mixture cooler (8) and pre-rectifying tower return tank (7), on pre-rectifying tower storage tank (1), be connected with dehydrogenated oil mixture and enter pipe (10) and dehydrogenated oil mixture efferent duct (11), kinetic pump (2) is housed on dehydrogenated oil mixture efferent duct (11), the end of dehydrogenated oil mixture efferent duct (11) is connected to pre-rectifying one-level heater (3), pre-rectifying secondary heater (4) is connected with pre-rectifying one-level heater (3) by pipeline, pre-rectifying secondary heater (4) is connected on pre-rectifying tower (5) by pipeline, one output of pre-rectifying tower (5) is connected on pre-rectifying tower cooler (6) by pipeline, another output is connected on pre-rectifying one-level heater (3), steam access tube (14) is housed on pre-rectifying tower (5), cooling water circulation pipe (15) is housed on pre-rectifying tower cooler (6), pre-rectifying tower cooler (6) is connected by pipeline with pre-rectifying tower return tank (7), pre-rectifying tower return tank (7) is connected on pre-rectifying secondary heater (4) by pipeline, pre-rectifying secondary heater (4) is connected with the first mixture cooler (8) by pipeline, on the first mixture cooler (8), be connected with the first mixture efferent duct (12), on pre-rectifying one-level heater (3), be connected with the second mixture efferent duct (13).
2. pre-rectifier unit as claimed in claim 1, it is characterized in that: described pre-rectifier unit also comprises pre-rectifying tower reboiler (9), on pre-rectifying tower reboiler (9), be connected with conduction oil circulation pipe (16), one end of pre-rectifying tower reboiler (9) is by pipeline and the discharge end of pre-rectifying tower (5) is connected, the other end is connected to pre-rectifying tower (5) feed end.
3. pre-rectifier unit as claimed in claim 2, it is characterized in that: described pre-rectifying tower reboiler (9) comprises reboiler tank (91), reboiler tank (91) inner chamber is partitioned into reboiler feed cavity (92) by ring flange, reboiler heat exchanging chamber (93) and reboiler discharging chamber (94), described conduction oil circulation pipe (16) comprises and is connected to oil inlet pipe and the flowline that reboiler tank (91) is upper and be communicated with reboiler heat exchanging chamber, spaced multiple reboiler deflection plates (95) are housed in reboiler heat exchanging chamber, on ring flange, be connected with many reboilers that are communicated with reboiler feed cavity and reboiler discharging chamber respectively through reboiler heat exchanging chamber and both ends by pipe (96).
4. the pre-rectifier unit as described in any one in claim 1-3, it is characterized in that: described pre-rectifying tower (5) comprises pre-rectifying tower body (51), in pre-rectifying tower body (51), be equipped with and arrange from top to bottom and spaced multiple float valve tray (52), multiple float valve trays (52) are positioned at the top of described steam access tube (14) inner extending end, on the tower wall of pre-rectifying tower body (52), be connected with the pre-rectifying tower feed pipe (16) being connected with described pre-rectifying secondary heater (4), pre-rectifying tower body (51) bottom is connected with the second mixture effuser (17) being connected with described pre-rectifying one-level heater (3), pre-rectifying tower body (51) top is also equipped with and is positioned at the first mixture effuser (18) that float valve tray (52) top and its overhanging end are connected with pre-rectifying tower cooler (6).
5. pre-rectifier unit as claimed in claim 4, it is characterized in that: the tube section ends that described steam access tube (14) stretches in pre-rectifying tower body (51) is equipped with end-plate, described pipeline section bottom is provided with downward opening air inlet, the tube section ends that the first mixture effuser (18) stretches in pre-rectifying tower body (51) is equipped with end-plate, and described pipeline section bottom is provided with downward opening discharging opening.
6. pre-rectifier unit as claimed in claim 4, it is characterized in that: described pre-rectifying one-level heater (3) comprises two one-level heater tank bodies (31) of serial connection up and down, one-level heater tank body (31) inner chamber is partitioned into one-level heater feed cavity (32) by ring flange, one-level heater heat exchanging chamber (33) and one-level heater discharging chamber (34), spaced multiple one-level heater baffling plates (35) are housed in one-level heater heat exchanging chamber (33), on ring flange, be connected with many one-level heaters that are communicated with one-level heater feed cavity (32) and one-level heater discharging chamber (34) respectively through one-level heater heat exchanging chamber (33) and both ends by pipe (36), the second mixture effuser (17) is connected to the one-level heater tank body (31) on top and goes up and be communicated with one-level heater heat exchanging chamber (33), described the second mixture efferent duct (13) is connected to the one-level heater tank body (31) of bottom and goes up and be communicated with one-level heater heat exchanging chamber (33), the one-level heater heat exchanging chamber (33) of two one-level heater tank bodies (31) passes through pipeline connection, the one-level heater feed cavity (32) of the one-level heater tank body (31) of its middle and upper part is passed through pipeline connection with the one-level heater discharging chamber (34) of the one-level heater tank body (31) of bottom, described dehydrogenated oil mixture efferent duct (11) is communicated with the one-level heater feed cavity (32) of the one-level heater tank body (31) of bottom, the one-level heater discharging chamber (34) of the one-level heater tank body (31) on top is connected with the one-level heater effuser (37) with pre-rectifying secondary heater (4).
7. pre-rectifier unit as claimed in claim 4, it is characterized in that: described pre-rectifying secondary heater (4) comprises three secondary heater tank bodies (41) of serial connection up and down, secondary heater tank body (41) inner chamber is partitioned into secondary heater input and output material chamber (42) by ring flange, secondary heater heat exchanging chamber (43) and secondary heater torus (44), spaced multiple secondary heater baffling plates (45) are housed in secondary heater heat exchanging chamber (43), on ring flange, be connected with many secondary heaters that are communicated with secondary heater input and output material chamber (42) and secondary heater torus (44) respectively through secondary heater heat exchanging chamber (43) and both ends by pipe (46), described the first mixture cooler (8) is upper to be communicated with by the secondary heater heat exchanging chamber (43) on the secondary heater tank body (41) of pipe (19) and foot by the first mixture, the upper secondary heater heat exchanging chamber (43) that is connected to the secondary heater tank body (41) of topmost by the first mixture runner pipe (20) of described pre-rectifying tower return tank (7), the secondary heater heat exchanging chamber (43) of three secondary heater tank bodies (41) passes through pipeline connection, in described secondary heater input and output material chamber (42), be equipped with its upper and lower separated heater space bar (47), described pre-rectifying tower feed pipe (16) is communicated with the top in the secondary heater input and output material chamber (42) of the secondary heater tank body (41) of topmost.
8. the pre-rectifier unit as described in any one in claim 1-3, it is characterized in that: described pre-rectifying tower cooler (6) comprises pre-rectifying tower tank (61), pre-rectifying tower tank (61) inner chamber is partitioned into pre-rectifying tower input and output material chamber (62) by ring flange, pre-rectifying tower heat exchanging chamber (63) and pre-rectifying tower torus (64), described cooling water circulation pipe (15) comprises and is connected to water inlet pipe and the outlet pipe that pre-rectifying tower tank (61) is upper and be communicated with pre-rectifying tower heat exchanging chamber, spaced multiple pre-rectifying tower deflection plates (65) are housed in pre-rectifying tower heat exchanging chamber, on ring flange, be connected with many pre-rectifying towers that are communicated with pre-rectifying tower input and output material chamber and pre-rectifying tower torus respectively through pre-rectifying tower heat exchanging chamber and both ends by pipe (66), in pre-rectifying tower input and output material chamber (62), be equipped with its upper and lower separated pre-rectifying tower space bar (67).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341522.3U CN203886220U (en) | 2014-06-25 | 2014-06-25 | Pre-distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341522.3U CN203886220U (en) | 2014-06-25 | 2014-06-25 | Pre-distillation device |
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| Publication Number | Publication Date |
|---|---|
| CN203886220U true CN203886220U (en) | 2014-10-22 |
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| CN201420341522.3U Expired - Fee Related CN203886220U (en) | 2014-06-25 | 2014-06-25 | Pre-distillation device |
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| CN (1) | CN203886220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148550A (en) * | 2015-07-15 | 2015-12-16 | 苏州捷力新能源材料有限公司 | Dichloromethane extract liquid separation apparatus |
-
2014
- 2014-06-25 CN CN201420341522.3U patent/CN203886220U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148550A (en) * | 2015-07-15 | 2015-12-16 | 苏州捷力新能源材料有限公司 | Dichloromethane extract liquid separation apparatus |
| CN105148550B (en) * | 2015-07-15 | 2017-06-13 | 苏州捷力新能源材料有限公司 | Dichloromethane extract separator |
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