Quadruple-effect evaporation system capable of uniformly distributing materials

Abstract

The utility model discloses a quadruple-effect evaporation system capable of uniformly distributing materials, which comprises a first-effect heater, a first-effect separator, a second-effect heater, a second-effect separator, a third-effect heater, a third-effect separator, a quadruple-effect heater and a quadruple-effect separator, and is characterized in that materials firstly enter the quadruple-effect heater and then sequentially enter a first-effect evaporation device, a second-effect evaporation device and a third-effect evaporation device; a guide distributing device is arranged in a triple-effect separator and comprises a transverse extending part and a vertical extending part which are connected in sequence; and a guide plate which is spirally arranged is arranged in the vertical extension part. When a mixture of feed liquid and steam enters the vertical extension part at the same time, the guide plate can enable the feed liquid to spirally rise, separate the feed liquid from the steam and improve the centrifugal force of the feed liquid, and finally the feed liquid is diffused out from the upper end of the vertical extension part, so that the feed liquid is uniformly distributed in the triple-effect separator, and the evaporation and concentration efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation and concentration, in particular to a four-effect evaporation system for uniform distribution of materials. Background Art

[0002] In evaporation production, the output of secondary steam is large and contains a lot of latent heat, so it should be recovered and utilized. Multi-effect evaporation concentration technology uses the secondary steam generated in the previous evaporation process as the heat source for the next evaporation process, thereby saving steam consumption and reducing evaporation concentration costs.

[0003] Existing evaporation systems generally use pressure pumps to transport liquid, but there is often a situation where the liquid is unevenly distributed in the evaporation equipment. When the liquid is unevenly distributed, it will lead to insufficient evaporation of the liquid, greatly reducing the efficiency of evaporation and concentration. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a four-effect evaporation system with uniform material distribution, so as to solve the problems of uneven distribution of material liquid in the evaporation equipment and low evaporation concentration efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a four-effect evaporation system with uniform distribution, including a first-effect heater, a first-effect separator, a second-effect heater, a second-effect separator, a third-effect heater, a third-effect separator, a fourth-effect heater and a fourth-effect separator;

[0006] The feed port of the four-effect heater is connected to the feed pipe, the discharge ports of the four-effect heater and the four-effect separator are connected to the feed ports of the four-effect circulation pump and the first-effect feed pump, the discharge port of the four-effect circulation pump is connected to the return port of the four-effect heater, the discharge port of the first-effect feed pump is connected to the feed port of the first-effect heater, the discharge ports of the first-effect heater and the first-effect separator are connected to the feed port of the first-effect circulation pump, and the discharge port of the first-effect circulation pump is connected to the feed ports of the first-effect heater and the second-effect heater;

[0007] The discharge ports of the second-effect heater and the second-effect separator are connected to the feed port of the second-effect circulating pump, and the discharge port of the second-effect circulating pump is connected to the feed port of the second-effect heater and the feed port of the triple-effect heater; the steam outlet of the triple-effect heater is connected to the feed port of the triple-effect separator, and the discharge port of the triple-effect separator is connected to the feed port of the triple-effect circulating pump and the feed port of the triple-effect discharge pump, and the discharge port of the triple-effect circulating pump is connected to the feed port of the triple-effect heater, and the discharge port of the triple-effect discharge pump is connected to the discharge pipe;

[0008] A guide distributor is arranged in the three-effect separator, and the guide distributor comprises a transverse extension part and a vertical extension part which are connected in sequence, the first end of the transverse extension part is located on the side of the three-effect separator, the second end of the transverse extension part extends to the middle of the three-effect separator, the lower end of the vertical extension part is connected to the second end of the transverse extension part, and the upper end of the vertical extension part extends in a direction away from the second end of the transverse extension part; a spirally arranged guide plate is arranged in the vertical extension part.

[0009] In some embodiments, the central axis of the vertically extending portion coincides with the central axis of the triple-effect separator.

[0010] In some embodiments, the guide plates include a plurality of guide plates, and the plurality of guide plates are evenly distributed in the vertical extension portion, and the outer contour of the guide plates is arc-shaped.

[0011] In some embodiments, the sealed inlets of the first-effect circulation pump, the second-effect circulation pump, the third-effect circulation pump, the third-effect discharge pump, the first-effect feed pump, and the fourth-effect circulation pump are all connected to the pump sealed water inlet pipe; the sealed outlets of the first-effect circulation pump, the second-effect circulation pump, the third-effect circulation pump, the third-effect discharge pump, the first-effect feed pump, and the fourth-effect circulation pump are all connected to the pump sealed water outlet pipe.

[0012] In some embodiments, the system also includes a condenser and a terminal condensate water pump. The condenser is used to condense hot steam. The condenser is connected to the terminal condensate water pump. The terminal condensate water pump is used to pump the condensed water in the condenser to the return pipe. The sealed inlet of the terminal condensate water pump is connected to the pump sealed water inlet pipe, and the sealed outlet of the terminal condensate water pump is connected to the pump sealed water outlet pipe.

[0013] In some embodiments, the single-effect heater is also connected to a single-effect condensation water pump, which is used to pump the condensed water in the single-effect heater to the return pipe, the sealed inlet of the single-effect condensation water pump is connected to the pump sealed water inlet pipe, and the sealed outlet of the single-effect condensation water pump is connected to the pump sealed water outlet pipe; the quadruple-effect heater is also connected to a quadruple-effect condensation water pump, which is used to pump the condensed water in the quadruple-effect heater, the triple-effect heater and the double-effect heater to the return pipe, the sealed inlet of the quadruple-effect condensation water pump is connected to the pump sealed water inlet pipe, and the sealed outlet of the quadruple-effect condensation water pump is connected to the pump sealed water outlet pipe.

[0014] The beneficial effects of the utility model are as follows: by arranging a guide distributor in the three-effect separator, the guide distributor includes a lateral extension part and a vertical extension part connected in sequence, the first end of the lateral extension part is located on the side of the three-effect separator, the second end of the lateral extension part extends to the middle of the three-effect separator, the lower end of the vertical extension part is connected to the second end of the lateral extension part, and the upper end of the vertical extension part extends away from the second end of the lateral extension part; a spirally arranged guide plate is arranged in the vertical extension part. When the mixture of feed liquid and steam enters the vertical extension part at the same time, the guide plate can make the feed liquid spirally rise, separate the feed liquid from the steam, and at the same time increase the centrifugal force of the feed liquid, and finally the feed liquid diffuses out from the upper end of the vertical extension part, so that the feed liquid is evenly distributed in the three-effect separator, and the evaporation concentration efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a guide distributor according to an embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the top view of the vertical extension portion of one embodiment of the utility model;

[0018] Figure 4 This is a schematic structural diagram of a first-effect heater according to an embodiment of the utility model;

[0019] Figure 5 This is a schematic structural diagram of a first-effect separator according to an embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of a two-effect heater according to an embodiment of the present utility model;

[0021] Figure 7 This is a schematic diagram of the structure of a two-effect separator in accordance with an embodiment of the present utility model;

[0022] Figure 8 This is a schematic diagram of the structure of a triple-effect heater according to an embodiment of the present utility model;

[0023] Fig. 9 It is a structural schematic diagram of a triple-effect separator in one embodiment of the utility model;

[0024] Fig.10 This is a schematic diagram of the structure of a four-effect heater according to an embodiment of the present utility model;

[0025] Fig.11 This is a schematic diagram of the structure of a four-effect separator according to the first embodiment of the utility model;

[0026] Fig.12 It is a structural schematic diagram of a condenser according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0029] Figure 1-Figure 12 The embodiment of the four-effect evaporation system for uniform distribution of the utility model is shown, comprising a first-effect heater 1, a first-effect separator 2, a second-effect heater 3, a second-effect separator 4, a third-effect heater 5, a third-effect separator 6, a fourth-effect heater 7 and a fourth-effect separator 8;

[0030] The feed port 73 of the quadruple-effect heater 7 is connected to the feed pipe 70, the discharge port 74 of the quadruple-effect heater 7 and the discharge port 83 of the quadruple-effect separator 8 are connected to the feed port of the quadruple-effect circulation pump 84 and the feed port of the first-effect feed pump 16, the discharge port of the quadruple-effect circulation pump 84 is connected to the return port 75 of the quadruple-effect heater 7, the discharge port of the first-effect feed pump 16 is connected to the feed port 13 of the first-effect heater 1, the discharge port 14 of the first-effect heater 1 and the discharge port 23 of the first-effect separator 2 are connected to the feed port of the first-effect circulation pump 15, and the discharge port of the first-effect circulation pump 15 is connected to the feed port 13 of the first-effect heater 1 and the feed port 33 of the second-effect heater 3.

[0031] The discharge port 34 of the second-effect heater 3 and the discharge port 43 of the second-effect separator 4 are connected to the feed port of the second-effect circulation pump 35, and the discharge port of the second-effect circulation pump 35 is connected to the feed port 33 of the second-effect heater 3 and the feed port 53 of the triple-effect heater 5; the steam outlet 52 of the triple-effect heater 5 is connected to the feed port 62 of the triple-effect separator 6, and the discharge port 63 of the triple-effect separator 6 is connected to the feed port of the triple-effect circulation pump 54 and the feed port of the triple-effect discharge pump 55, the discharge port of the triple-effect circulation pump 54 is connected to the feed port 53 of the triple-effect heater 5, and the discharge port of the triple-effect discharge pump 55 is connected to the discharge pipe 80.

[0032] A guide distributor 30 is arranged in the three-effect separator 6, and the guide distributor 30 includes a lateral extension part 301 and a vertical extension part 302 connected in sequence. The first end of the lateral extension part 301 is located on the side of the three-effect separator 6, and the second end of the lateral extension part 301 extends to the middle of the three-effect separator 6. The lower end of the vertical extension part 302 is connected to the second end of the lateral extension part 301, and the upper end of the vertical extension part 302 extends in a direction away from the second end of the lateral extension part 301; a spirally arranged guide plate 303 is arranged in the vertical extension part 302.

[0033] In the utility model, a guide distributor 30 is arranged in the triple-effect separator 6, and the guide distributor 30 includes a lateral extension part 301 and a vertical extension part 302 connected in sequence, the first end of the lateral extension part 301 is located on the side of the triple-effect separator 6, the second end of the lateral extension part 301 extends to the middle of the triple-effect separator 6, the lower end of the vertical extension part 302 is connected to the second end of the lateral extension part 301, and the upper end of the vertical extension part 302 extends in a direction away from the second end of the lateral extension part 301; a spirally arranged guide plate 303 is arranged in the vertical extension part 302. When the mixture of feed liquid and steam enters the vertical extension part 302 at the same time, the guide plate 303 can make the feed liquid spirally rise, separate the feed liquid from the steam, and at the same time increase the centrifugal force of the feed liquid, and finally the feed liquid diffuses out from the upper end of the vertical extension part 302, so that the feed liquid is evenly distributed in the triple-effect separator 6, and the evaporation concentration efficiency is higher.

[0034] It should be noted that the steam coming out of the steam outlet 52 of the triple-effect heater 5 is accompanied by part of the feed liquid, and the steam and the feed liquid enter the triple-effect separator 6 together through the feed inlet 62 of the triple-effect separator 6. The above is an introduction to the flow process of the feed liquid in the four-effect evaporation system. The feed liquid is introduced by the feed pipe 70, and then flows and circulates among the four-effect heater 7, the four-effect separator 8, the first-effect heater 1, the first-effect separator 2, the second-effect heater 3, the second-effect separator 4, the triple-effect heater 5 and the triple-effect separator 6 in sequence, and is finally discharged from the discharge pipe 80 after the concentration is qualified. The flow process of the steam in the four-effect evaporation system is introduced in detail below in combination with the connection relationship between the equipment.

[0035] The steam inlet 11 of the first-effect heater 1 is connected to the steam pipe 10, the steam outlet 12 of the first-effect heater 1 is connected to the steam inlet 21 of the first-effect separator 2, the steam outlet 22 of the first-effect separator 2 is connected to the steam inlet 31 of the second-effect heater 3, the steam outlet 32 ​​of the second-effect heater 3 is connected to the steam inlet 41 of the second-effect separator 4, the steam outlet 42 of the second-effect separator 4 is connected to the steam inlet 51 of the triple-effect heater 5, the steam outlet 52 of the triple-effect heater 5 is connected to the feed port 62 of the triple-effect separator 6, the steam outlet 61 of the triple-effect separator 6 is connected to the steam inlet 71 of the quadruple-effect heater 7, the steam outlet 72 of the quadruple-effect heater 7 is connected to the steam inlet 81 of the quadruple-effect separator 8, the steam outlet 82 of the quadruple-effect separator 8 is connected to the steam inlet 91 of the condenser 9, and the condensation outlet 92 of the condenser 9 is connected to the return pipe 20. The steam enters the first-effect, second-effect, third-effect and fourth-effect evaporation equipment in sequence, making full use of the heat of the steam and improving the efficiency of evaporation and concentration.

[0036] In some embodiments, Figure 2 As shown, the central axis 3021 of the vertical extension part 302 coincides with the central axis 64 of the triple-effect separator 6. By arranging the vertical extension part 302 in the middle of the triple-effect separator 6 and coinciding the central axes of the two, the uniformity of liquid diffusion is further improved, and the efficiency of evaporation and concentration is improved.

[0037] In some embodiments, Figure 3 As shown, the guide plates 303 include a plurality of guide plates 303, which are evenly distributed in the vertical extension portion 302, and the outer contour of the guide plates 303 is in an arc shape. When the mixture of steam and liquid flows through the guide plates 303, the centrifugal force generated by the spiral separates the steam and the liquid, and at the same time increases the acceleration of the liquid diffusion, so that the liquid diffusion is more uniform.

[0038] In some embodiments, Figure 1 As shown, the sealed inlets of the first-effect circulation pump 15, the second-effect circulation pump 35, the third-effect circulation pump 54, the third-effect discharge pump 55, the first-effect feed pump 16, and the fourth-effect circulation pump 84 are all connected to the pump sealed water inlet pipe 90; the sealed outlets of the first-effect circulation pump 15, the second-effect circulation pump 35, the third-effect circulation pump 54, the third-effect discharge pump 55, the first-effect feed pump 16, and the fourth-effect circulation pump 84 are all connected to the pump sealed water outlet pipe 100. By introducing pump sealing water into each power pump, the pump sealing water can form a water film between the rotating shaft and the sealing member to prevent the high-pressure water in the pump from leaking from the gap between the rotating shaft and the sealing member, and the sealing effect is better.

[0039] In some embodiments, Figure 1As shown, the system further includes a condenser 9 and a terminal condensate water pump 60. The condenser 9 is used to condense the hot steam. The condenser 9 is connected to the terminal condensate water pump 60. The terminal condensate water pump 60 is used to pump the condensate in the condenser 9 to the return pipe 20. The sealed inlet of the terminal condensate water pump 60 is connected to the pump sealed water inlet pipe 90, and the sealed outlet of the terminal condensate water pump 60 is connected to the pump sealed water outlet pipe 100. By connecting the terminal condensate water pump 60 to the pump sealed water inlet pipe 90 and the pump sealed water outlet pipe 100 respectively, the pump sealed water circulates in the terminal condensate water pump 60, which has a sealing effect.

[0040] In some embodiments, Figure 1 As shown, the single-effect heater 1 is also connected to a single-effect condensing water pump 40, which is used to pump the condensed water in the single-effect heater 1 to the return pipe 20, the sealed inlet of the single-effect condensing water pump 40 is connected to the pump sealed water inlet pipe 90, and the sealed outlet of the single-effect condensing water pump 40 is connected to the pump sealed water outlet pipe 100; the quadruple-effect heater 7 is also connected to a quadruple-effect condensing water pump 50, which is used to pump the condensed water in the quadruple-effect heater 7, the triple-effect heater 5 and the double-effect heater 3 to the return pipe 20, the sealed inlet of the quadruple-effect condensing water pump 50 is connected to the pump sealed water inlet pipe 90, and the sealed outlet of the quadruple-effect condensing water pump 50 is connected to the pump sealed water outlet pipe 100. By setting the single-effect condensing water pump 40 and the quadruple-effect condensing water pump 50, the flow of condensed water is accelerated and the reuse of condensed water is realized. The single-effect condensing water pump 40 and the quadruple-effect condensing water pump 50 are both fed with pump sealing water, and the sealing effect is better.

[0041] It should be noted that the sealing inlet and sealing outlet of each power pump are arranged on the side of the pump body for introducing and outflowing pump sealing water, which are not marked one by one in the drawings.

[0042] It can be seen that the utility model discloses a four-effect evaporation system with uniform distribution, by arranging a guide distributor in a three-effect separator, the guide distributor includes a lateral extension part and a vertical extension part connected in sequence, the first end of the lateral extension part is located on the side of the three-effect separator, the second end of the lateral extension part extends to the middle of the three-effect separator, the lower end of the vertical extension part is connected to the second end of the lateral extension part, and the upper end of the vertical extension part extends away from the second end of the lateral extension part; a spirally arranged guide plate is arranged in the vertical extension part. When the mixture of feed liquid and steam enters the vertical extension part at the same time, the guide plate can make the feed liquid spirally rise, separate the feed liquid from the steam, and at the same time increase the centrifugal force of the feed liquid, and finally the feed liquid diffuses out from the upper end of the vertical extension part, so that the feed liquid is evenly distributed in the three-effect separator, and the evaporation concentration efficiency is higher.

[0043] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A four-effect evaporation system with uniform distribution, characterized in that: It includes a single-effect heater, a single-effect separator, a double-effect heater, a double-effect separator, a triple-effect heater, a triple-effect separator, a quadruple-effect heater and a quadruple-effect separator; The feed port of the four-effect heater is connected to the feed pipe, the discharge ports of the four-effect heater and the four-effect separator are connected to the feed ports of the four-effect circulation pump and the first-effect feed pump, the discharge port of the four-effect circulation pump is connected to the return port of the four-effect heater, the discharge port of the first-effect feed pump is connected to the feed port of the first-effect heater, the discharge ports of the first-effect heater and the first-effect separator are connected to the feed port of the first-effect circulation pump, and the discharge port of the first-effect circulation pump is connected to the feed ports of the first-effect heater and the second-effect heater; The discharge ports of the second-effect heater and the second-effect separator are connected to the feed port of the second-effect circulation pump, and the discharge port of the second-effect circulation pump is connected to the feed port of the second-effect heater and the feed port of the triple-effect heater; the steam outlet of the triple-effect heater is connected to the feed port of the triple-effect separator, and the discharge port of the triple-effect separator is connected to the feed port of the triple-effect circulation pump and the feed port of the triple-effect discharge pump, and the discharge port of the triple-effect circulation pump is connected to the feed port of the triple-effect heater, and the discharge port of the triple-effect discharge pump is connected to the discharge pipe; A guide distributor is arranged in the three-effect separator, and the guide distributor includes a lateral extension part and a vertical extension part connected in sequence, the first end of the lateral extension part is located on the side of the three-effect separator, the second end of the lateral extension part extends to the middle of the three-effect separator, the lower end of the vertical extension part is connected to the second end of the lateral extension part, and the upper end of the vertical extension part extends away from the second end of the lateral extension part; a spirally arranged guide plate is arranged in the vertical extension part.

2. The four-effect evaporation system for uniform distribution of materials according to claim 1, characterized in that: The central axis of the vertically extending portion coincides with the central axis of the triple-effect separator.

3. The four-effect evaporation system for uniform distribution of materials according to claim 1, characterized in that: The guide plates include a plurality of guide plates, which are evenly distributed in the vertical extension portion, and the outer contour of the guide plates is in an arc shape.

4. The four-effect evaporation system for uniform distribution of materials according to claim 1 is characterized in that: The sealed inlets of the first-effect circulation pump, the second-effect circulation pump, the third-effect circulation pump, the third-effect discharge pump, the first-effect feed pump, and the fourth-effect circulation pump are all connected to the pump sealed water inlet pipe; the sealed outlets of the first-effect circulation pump, the second-effect circulation pump, the third-effect circulation pump, the third-effect discharge pump, the first-effect feed pump, and the fourth-effect circulation pump are all connected to the pump sealed water outlet pipe.

5. The four-effect evaporation system for uniform distribution of materials according to claim 4, characterized in that: The system also includes a condenser and a terminal condensate water pump. The condenser is used to condense hot steam. The condenser is connected to the terminal condensate water pump. The terminal condensate water pump is used to pump condensed water in the condenser to a return pipe. The sealed inlet of the terminal condensate water pump is connected to the pump sealed water inlet pipe, and the sealed outlet of the terminal condensate water pump is connected to the pump sealed water outlet pipe.

6. The four-effect evaporation system for uniform distribution of materials according to claim 5, characterized in that: The single-effect heater is also connected to a single-effect condensation water pump, which is used to pump the condensation water in the single-effect heater to the return pipe, the sealed inlet of the single-effect condensation water pump is connected to the pump sealed water inlet pipe, and the sealed outlet of the single-effect condensation water pump is connected to the pump sealed water outlet pipe; the quadruple-effect heater is also connected to a quadruple-effect condensation water pump, which is used to pump the condensation water in the quadruple-effect heater, the triple-effect heater and the double-effect heater to the return pipe, the sealed inlet of the quadruple-effect condensation water pump is connected to the pump sealed water inlet pipe, and the sealed outlet of the quadruple-effect condensation water pump is connected to the pump sealed water outlet pipe.

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