A pre-concentration tower

Abstract

The present invention provides a pre-concentration tower, which makes the arrangement of the heat exchanger reliable and effective, ensures the high efficiency of gas-liquid separation, and reduces the manufacturing cost of the whole equipment. It includes a cylinder, the top of the cylinder is fixedly connected with an elliptical upper head, the bottom of the cylinder is fixedly connected with an elliptical lower head, the upper part of the cylinder is provided with a packing bed, the space area of ​​the packing bed is filled with packing, the lower part of the cylinder is a reboiler collecting box, the reboiler collecting box is provided with a liquid inlet at a position corresponding to one side of the cylinder wall of the cylinder, the reboiler collecting box includes a bottom transverse plate, a first longitudinal partition, a plurality of heat exchangers, a liquid inlet, a second partition longitudinal plate assembly, and a third longitudinal partition, one end of the bottom transverse plate extends to the corresponding position below the liquid inlet, the first longitudinal partition blocks the corresponding height position of the liquid inlet, and the other end of the bottom transverse plate is provided with a convex third longitudinal partition.

Description

Technical Field

[0001] The invention relates to the technical field of liquid concentration equipment, in particular to a pre-concentration tower. Background Art

[0002] After the production is completed, some gas will remain in the liquid medium. In order to increase the concentration of the liquid medium, the residual gas needs to be discharged. Therefore, a pre-concentration tower is required to discharge the residual gas before subsequent operations. The existing pre-concentration tower heats the liquid medium passing through a whole row of heat exchangers and then passes through the liquid accumulation tank to accelerate gas-liquid separation. In actual use, a longer row of heat exchangers needs to be arranged to ensure sufficient heating of the liquid medium and the heat exchanger, which makes the production cost of the entire equipment high and the gas-liquid separation effect is average. Summary of the invention

[0003] In view of the above problems, the present invention provides a pre-concentration tower, which makes the arrangement of the heat exchanger reliable and effective, ensures efficient gas-liquid separation, and reduces the manufacturing cost of the entire equipment.

[0004] A pre-concentration tower, characterized in that it comprises a cylinder, an elliptical upper head is fixedly connected to the top of the cylinder, an elliptical lower head is fixedly connected to the bottom of the cylinder, a packing bed is arranged on the upper part of the cylinder, a space area of ​​the packing bed is filled with packing, the lower part of the cylinder is a reboiler collecting box, a liquid inlet is arranged at a side position of the reboiler collecting box corresponding to the cylinder wall of the cylinder, the reboiler collecting box comprises a bottom transverse plate, a first longitudinal partition plate, a plurality of heat exchangers, a liquid inlet, a second partition longitudinal plate assembly, a third longitudinal partition plate, One end of the bottom transverse plate extends to the corresponding position below the liquid inlet, the first longitudinal partition blocks the corresponding height position of the liquid inlet, and the other end of the bottom transverse plate is provided with a convex third longitudinal partition, and the bottom transverse plate separates the reboiler collecting tank and the space below. A plurality of the heat exchangers are arranged in the area of ​​the bottom transverse plate corresponding to the first longitudinal partition to the third longitudinal partition, and the plurality of heat exchangers are separated by the second partition longitudinal plate assembly to form two independent heat exchange cavities, specifically the first heat exchange cavity and the second heat exchange cavity. The longitudinal partition plate assembly specifically includes a first upper limit partition plate and a second lower limit partition plate. The bottom of the first upper limit partition plate is fixedly connected to the bottom transverse plate, and the two ends of the second lower limit partition plate in the length direction are respectively fixedly connected to the corresponding inner wall arrangement of the cylinder. A connecting gap is left between the bottom of the second lower limit partition plate and the bottom transverse plate, and the top of the second lower limit partition plate is higher than the top of the first upper limit partition plate. The first upper limit partition plate is located at the boundary position of the first heat exchange cavity, and the second lower limit partition plate is located at the boundary position of the second heat exchange cavity. A transition cavity is formed between the first upper limit partition plate and the second lower limit partition plate, and an inflow gap is left between the bottom of the first longitudinal partition plate and the bottom transverse plate; the outer overflow cavity of the third longitudinal partition plate is connected to the inner cavity of the elliptical lower head, and a liquid phase outlet pipe is connected to the bottom center position of the elliptical lower head, and a vent and a vent are arranged at the top center position of the elliptical upper head. At least one gas phase outlet is arranged at the corresponding position of the outer ring of the vent and the vent, and a gas phase outlet pipe is arranged on each of the gas phase outlets.

[0005] Its further feature is that: the cylinder specifically comprises an upper cylinder section and a lower cylinder section, the upper cylinder section and the lower cylinder section are fixedly connected to form the cylinder, a packing bed is arranged in the upper cylinder section, the packing bed is supported by a packing bed support, a packing stopper is also arranged on the top of the packing bed, and the inner cavity of the lower cylinder section is a reboiler collecting tank; the packing bed and the reboiler collecting tank are arranged in the upper cylinder section and the lower cylinder section respectively, so that the whole structure is easy and quick to assemble;

[0006] The height of the liquid inlet of the reboiler header tank is higher than the height of the heat exchanger;

[0007] The bottom of the bottom transverse plate is supported on the corresponding inner wall of the lower cylinder section through an I-beam to ensure a stable and reliable structure;

[0008] The four heat exchangers are arranged in the area of ​​the bottom transverse plate corresponding to the first longitudinal partition to the third longitudinal partition, two heat exchangers are arranged in the first heat exchange cavity, and two heat exchangers are arranged in the second heat exchange cavity, and each heat exchanger is supported at a corresponding position of the bottom transverse plate by brackets on both sides;

[0009] The bottoms of the first upper limit baffle and the third longitudinal baffle are both provided with small-diameter drain holes to ensure that the liquid is drained when no work is performed later;

[0010] The elliptical lower head is supported on a skirt seat, the height of the skirt seat ensures the normal use of the entire structure, and the skirt seat is supported on the ground through a grounding plate;

[0011] The side outer wall of the upper cylinder section is provided with a connecting piece, and the connecting piece is connected to the bottom of the hanging column to ensure that the whole structure is convenient for hanging;

[0012] A first manhole is provided on the cylinder side wall of the cavity between the upper part of the packing bed and the elliptical upper head, a second manhole is provided on the cylinder side wall of the cavity between the lower part of the packing bed and the lower cylinder section, and a third manhole is provided on the lower part of the bottom horizontal plate corresponding to the side wall of the lower cylinder section to ensure monitoring of the operation of the equipment;

[0013] A temperature detection port is provided on the side wall away from the feed port at a position higher than the third longitudinal partition. The temperature detection port is connected to four thermometers through connecting lines. Each thermometer is placed in a corresponding area of ​​the heat exchanger to monitor the operating temperature inside the equipment at any time.

[0014] After adopting the above technical scheme, the finished liquid medium enters the liquid inlet cavity formed by the first longitudinal partition and the bottom horizontal plate through the liquid inlet, and then passes through the first heat exchange cavity and the heat exchanger corresponding to the second heat exchange cavity in sequence. Due to the presence of the first longitudinal partition, the second partition longitudinal plate assembly, and the third longitudinal partition, it is concentrated through several heat exchangers, and the separated medium components and the gas phase components are further separated through the packing bed. The light gas phase components are discharged from the upper gas phase outlet, and the heavy components fall into the lower liquid storage tank to continue to participate in gas-liquid separation. The liquid phase components overflow through the third longitudinal partition and flow out from the liquid phase outlet pipe connected to the bottom center position of the lower elliptical lower head; it makes the layout of the heat exchanger reliable and effective, ensures efficient gas-liquid separation, and reduces the production cost of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 It is a schematic diagram of assembling the cylinder, the elliptical upper head and the elliptical lower head of the present invention;

[0017] The names corresponding to the serial numbers in the figure are as follows:

[0018] Cylinder 1, upper cylinder section 101, lower cylinder section 102, elliptical upper head 2, elliptical lower head 3, packing bed 4, packing 5, reboiler collecting box 6, liquid inlet 7, bottom transverse plate 8, first longitudinal baffle 9, heat exchanger 10, third longitudinal baffle 11, first heat exchange cavity 12, second heat exchange cavity 13, first upper limit baffle 14, second lower limit baffle 15, connecting gap 16, transition cavity 17, inflow gap 18, overflow cavity 19, liquid phase outlet pipe 20, vent and vent 21, gas phase outlet 22, gas phase outlet pipe 23, packing bed support 24, packing stopper 25, I-beam 26, side bracket 27, small diameter drain hole 28, skirt 29, grounding plate 30, connector 31, hanging column 32, first manhole 33, second manhole 34, third manhole 35, temperature detection port 36. DETAILED DESCRIPTION

[0019] A pre-withdrawing concentration tower, see Figure 1 , Figure 2It includes a cylinder 1, an elliptical upper head 2 is fixedly connected to the top of the cylinder 1, an elliptical lower head 3 is fixedly connected to the bottom of the cylinder 1, a packing bed 4 is arranged on the upper part of the cylinder 1, and a packing 5 is filled in the space area of ​​the packing bed 4, and the lower part of the cylinder 1 is a reboiler collecting tank 6, and a liquid inlet 7 is arranged at a side position of the reboiler collecting tank 6 corresponding to the cylinder wall of the cylinder 1, and the reboiler collecting tank 6 includes a bottom transverse plate 8, a first longitudinal partition plate 9, a plurality of heat exchangers 10, a liquid inlet 7, a second partition longitudinal plate assembly, and a third longitudinal partition plate 11. One end of the bottom transverse plate 8 extends to the inlet At the corresponding position below the liquid inlet 7, the first longitudinal partition 9 blocks the corresponding height position of the liquid inlet 7, and the other end of the bottom transverse plate 8 is provided with a convex third longitudinal partition 11, and the bottom transverse plate 11 separates the reboiler collecting tank 6 and the space below. A plurality of heat exchangers 10 are arranged in the area of ​​the bottom transverse plate 8 corresponding to the first longitudinal partition 9 to the third longitudinal partition 11, and the plurality of heat exchangers 10 are separated by the second partition longitudinal plate assembly to form two independent heat exchange cavities, specifically a first heat exchange cavity 12 and a second heat exchange cavity 13, and the second partition longitudinal plate assembly has The heat exchange chamber 12 includes a first upper limit baffle 14 and a second lower limit baffle 15. The bottom of the first upper limit baffle 14 is fixedly connected to the bottom transverse plate 8. The two ends of the second lower limit baffle 15 in the length direction are respectively fixedly connected to the corresponding inner wall of the cylinder 1. A connecting notch 16 is left between the bottom of the second lower limit baffle 15 and the bottom transverse plate 8. The top of the second lower limit baffle 15 is higher than the top of the first upper limit baffle 14. The first upper limit baffle 14 is located at the boundary position of the first heat exchange chamber 12, and the second lower limit baffle 15 is located at the boundary position of the second heat exchange chamber 13. A transition cavity 17 is formed between the first upper limit baffle 14 and the second lower limit baffle 15, and an inlet notch 18 is left between the bottom of the first longitudinal baffle 9 and the bottom transverse plate 8; the outer overflow cavity 19 of the third longitudinal baffle 11 is connected to the inner cavity of the elliptical lower head 3, and a liquid phase outlet pipe 20 is connected to the bottom center position of the elliptical lower head 3, and a vent and a vent 21 are provided at the top center position of the elliptical upper head 2, and at least one gas phase outlet 22 is arranged at the corresponding position of the outer ring of the vent and the vent 21, and each gas phase outlet 22 is provided with a gas phase outlet pipe 23.

[0020] In a specific embodiment: two gas phase outlets 22 are arranged at corresponding positions of the outer ring of the vent and the vent 21;

[0021] The cylinder body 1 specifically includes an upper cylinder section 101 and a lower cylinder section 102. The upper cylinder section 101 and the lower cylinder section 102 are fixedly connected to form the cylinder body 1. A packing bed 4 is arranged in the upper cylinder section 101. The packing bed 4 is supported by a packing bed support 24. A packing stopper 25 is also arranged on the top of the packing bed 4. The inner cavity of the lower cylinder section 102 is a reboiler collecting tank 6. The packing bed 4 and the reboiler collecting tank 6 are arranged in the upper cylinder section 101 and the lower cylinder section 102 respectively, so that the whole structure can be assembled conveniently and quickly.

[0022] The height of the liquid inlet 7 of the reboiler header tank 6 is higher than the height of the heat exchanger 10;

[0023] The bottom of the bottom transverse plate 8 is supported on the corresponding inner wall of the lower cylinder section 102 through the I-beam 26 to ensure that the structure is stable and reliable;

[0024] Four heat exchangers 10 are arranged in the area of ​​the bottom transverse plate 8 corresponding to the first longitudinal partition 9 to the third longitudinal partition 11. Two heat exchangers 10 are arranged in the first heat exchange cavity 12, and two heat exchangers 10 are arranged in the second heat exchange cavity 13. Each heat exchanger 10 is supported at a corresponding position of the bottom transverse plate 8 by brackets 27 on both sides.

[0025] The bottoms of the first upper limit baffle 14 and the third longitudinal baffle 11 are both provided with small diameter drain holes 28 to ensure that the liquid is drained when no work is performed later;

[0026] The elliptical lower head 3 is supported on a skirt 29. The height of the skirt 29 ensures the normal use of the entire structure. The skirt 29 is supported on the ground through a grounding plate 30.

[0027] The side outer wall of the upper cylinder section 101 is provided with a connecting piece 31, and the connecting piece 31 is connected to the bottom of the hanging column 32 to ensure that the whole structure is easy to hoist;

[0028] A first manhole 33 is provided on the cylinder side wall of the cavity between the upper part of the packing bed 4 and the elliptical upper head 3, a second manhole 34 is provided on the cylinder side wall of the cavity between the lower part of the packing bed 4 and the lower cylinder section 102, and a third manhole 35 is provided on the side wall of the lower cylinder section 102 at the lower part of the bottom cross plate 8 to ensure monitoring of the operation of the equipment;

[0029] A temperature detection port 36 is provided on the side wall away from the feed port 7 at a position higher than the third longitudinal partition 11. The temperature detection port 36 is connected to four thermometers through connecting lines. Each thermometer is placed in a corresponding area of ​​the heat exchanger 10 to monitor the operating temperature inside the equipment at any time.

[0030] Its working principle is as follows: the liquid medium after production enters the liquid inlet cavity formed by the first longitudinal partition and the bottom horizontal plate through the liquid inlet, and then passes through the first heat exchange cavity and the heat exchanger corresponding to the second heat exchange cavity in sequence. Due to the existence of the first longitudinal partition, the second partition longitudinal plate assembly, and the third longitudinal partition, it is concentrated through several heat exchangers, and the separated medium components and the gas phase components are further separated through the packing bed. The light components of the gas phase are discharged from the gas phase outlet at the top, and the heavy components fall into the lower liquid storage box to continue to participate in gas-liquid separation. The liquid phase components overflow through the third longitudinal partition and flow out from the liquid phase outlet pipe connected to the bottom center position of the lower elliptical lower head; it makes the layout of the heat exchanger reliable and effective, ensures efficient gas-liquid separation, and reduces the production cost of the entire equipment.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pre-concentration tower, characterized in that: It includes a cylinder, the top of the cylinder is fixedly connected to an elliptical upper head, the bottom of the cylinder is fixedly connected to an elliptical lower head, the upper part of the cylinder is provided with a packing bed, the space area of ​​the packing bed is filled with packing, the lower part of the cylinder is a reboiler collecting box, the reboiler collecting box is provided with a liquid inlet at a position corresponding to one side of the cylinder wall of the cylinder, the reboiler collecting box includes a bottom transverse plate, a first longitudinal partition plate, a plurality of heat exchangers, a liquid inlet, a second partition longitudinal plate assembly, a third longitudinal partition plate, one end of the bottom transverse plate extends To the corresponding position below the liquid inlet, the first longitudinal partition blocks the corresponding height position of the liquid inlet, the other end of the bottom transverse plate is provided with a convex third longitudinal partition, the bottom transverse plate separates the reboiler collecting tank and the space below, a plurality of the heat exchangers are arranged in the area of ​​the bottom transverse plate corresponding to the first longitudinal partition to the third longitudinal partition, and a plurality of the heat exchangers are separated by the second partition longitudinal plate assembly to form two independent heat exchange cavities, specifically the first heat exchange cavity and the second heat exchange cavity, and the second partition longitudinal plate assembly has The body comprises a first upper limit baffle and a second lower limit baffle, the bottom of the first upper limit baffle is fixedly connected to the bottom cross plate, the two ends of the second lower limit baffle in the length direction are respectively fixedly connected to the corresponding inner wall arrangement of the cylinder, a connecting notch is left between the bottom of the second lower limit baffle and the bottom cross plate, the top of the second lower limit baffle is higher than the top of the first upper limit baffle, the first upper limit baffle is located at the boundary position of the first heat exchange cavity, the second lower limit baffle is located at the boundary position of the second heat exchange cavity, a transition cavity is formed between the first upper limit baffle and the second lower limit baffle, an inflow notch is left between the bottom of the first longitudinal baffle and the bottom cross plate; the outer overflow cavity of the third longitudinal baffle is connected to the inner cavity of the elliptical lower head, the bottom center position of the elliptical lower head is connected with a liquid phase outlet pipe, the top center position of the elliptical upper head is provided with a vent and a vent, at least one gas phase outlet is arranged at the corresponding position of the outer ring of the vent and the vent, and a gas phase outlet pipe is provided on each of the gas phase outlets.

2. A pre-stripping and concentrating tower as claimed in claim 1, characterized in that: The cylinder body specifically includes an upper cylinder section and a lower cylinder section. The upper cylinder section and the lower cylinder section are fixedly connected to form a cylinder body. A packing bed is arranged in the upper cylinder section. The packing bed is supported by a packing bed support. A packing limiter is also arranged on the top of the packing bed. The inner cavity of the lower cylinder section is a reboiler collecting tank.

3. A pre-stripping and concentrating tower as claimed in claim 2, characterized in that: The height of the liquid inlet of the reboiler collecting tank is higher than the height of the heat exchanger.

4. A pre-stripping and concentrating tower as claimed in claim 2, characterized in that: The bottom of the bottom transverse plate is supported on the corresponding inner wall of the lower cylinder section through an I-beam.

5. A pre-stripping and concentrating tower as claimed in claim 2, characterized in that: The four heat exchangers are arranged in the area of ​​the bottom transverse plate corresponding to the first longitudinal partition to the third longitudinal partition, two heat exchangers are arranged in the first heat exchange cavity, and two heat exchangers are arranged in the second heat exchange cavity. Each heat exchanger is supported at the corresponding position of the bottom transverse plate by two side brackets.

6. A pre-stripping and concentrating tower as claimed in claim 1, characterized in that: The bottoms of the first limit-limiting partition and the third longitudinal partition are both provided with small-diameter drainage holes.

7. A pre-stripping and concentrating tower as claimed in claim 1, characterized in that: The elliptical lower head is supported on a skirt seat, and the skirt seat is supported on the ground through a grounding plate.

8. A pre-stripping and concentrating tower as claimed in claim 2, characterized in that: The side outer wall of the upper cylinder section is provided with a connecting piece, and the connecting piece is connected to the bottom of the suspension column.

9. A pre-stripping and concentrating tower as claimed in claim 2, characterized in that: A first manhole is provided on the cylinder side wall of the cavity between the upper part of the packing bed and the elliptical upper head, a second manhole is provided on the cylinder side wall of the cavity between the lower part of the packing bed and the lower cylinder section, and a third manhole is provided on the side wall of the lower part of the bottom cross plate corresponding to the lower cylinder section.

10. A pre-stripping and concentrating tower as claimed in claim 5, characterized in that: A temperature detection port is provided on the side wall away from the feed port at a position higher than the third longitudinal partition, and the temperature detection port is connected to four thermometers through connecting lines, and each thermometer is placed in a corresponding area of ​​the heat exchanger.

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