A concentration evaporation method and a concentration evaporation apparatus

Abstract

The application discloses a concentration evaporation method and a concentration evaporation device, and the method comprises the following steps: in response to a vacuum standard signal, steam enters the evaporation device, and then the material also enters the evaporation device; in response to each cycle signal, the material is driven by each cycle pump to enter a three-effect second heater, a three-effect first heater, a waste heat heating separator, a two-effect heater and a one-effect heater to be cyclically heated; and finally, the material is discharged from a discharge pipe after reaching a standard. In the application, the material first enters the three-effect second heater to be concentrated and evaporated, then enters the three-effect first heater and the three-effect separator to be concentrated and evaporated, and then enters the two-effect evaporation device and the one-effect evaporation device in sequence to be concentrated and evaporated, so that the heat energy of the steam is fully utilized, the material is more fully evaporated, the evaporation effect is better, and the evaporation efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of concentration evaporation technology, and more particularly to a concentration evaporation method and equipment. Background Technology

[0002] Concentration evaporation is widely used in many fields such as chemical industry, pharmaceutical production, processing industry, and sewage treatment. Concentration evaporation equipment utilizes the principle of evaporation, continuously supplying heat energy during the concentration evaporation process to heat the solution to make it boil and vaporize, thereby removing water from the solution and obtaining a solution or solid solute with a higher concentration.

[0003] Existing concentration and evaporation methods and equipment cannot fully utilize the thermal energy of steam to evaporate materials during the concentration and evaporation process, resulting in insufficient material evaporation and high steam consumption. Therefore, existing concentration and evaporation methods and equipment have poor evaporation effect and low evaporation efficiency. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a concentration evaporation method and equipment to solve the problems of poor evaporation effect and low evaporation efficiency.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is to provide a concentration and evaporation method and a concentration and evaporation device, comprising the following steps:

[0006] In response to the vacuum compliance signal, the steam regulating valve opens, and the steam in the steam inlet pipe and the condensate flash tank enters the evaporation equipment in sequence; then the main feed valve opens, and feeding begins;

[0007] In response to the first circulation signal, the triple-effect second circulation pump starts, and the triple-effect second circulation pump introduces the material into the triple-effect second heater through the feed pipe for circulation heating. The material separated in the triple-effect second heater is diverted to the triple-effect first heater, and the material vapor separated in the triple-effect second heater enters the triple-effect separator.

[0008] In response to the second circulation signal, the triple-effect first circulation pump starts, and the triple-effect first circulation pump introduces the material diverted from the triple-effect second heater into the triple-effect first heater for circulation heating. The material separated from the triple-effect first heater is diverted to the waste heat heating separator. The material vapor separated from the triple-effect first heater enters the triple-effect separator. The material separated from the triple-effect separator enters the triple-effect first heater and the triple-effect second heater respectively for circulation heating.

[0009] In response to the third circulation signal, the waste heat effect circulation pump starts and introduces the material diverted from the first triple-effect heater into the waste heat heating separator for circulation heating. The material separated from the waste heat heating separator is diverted to the second-effect heater.

[0010] In response to the fourth cycle signal, the second-effect circulating pump starts and introduces the material diverted from the waste heat heating separator into the second-effect heater for circulating heating. The material separated from the second-effect heater is diverted to the first-effect heater. The material vapor separated from the second-effect heater enters the second-effect separator, and the material separated from the second-effect separator enters the second-effect heater for circulating heating.

[0011] In response to the fifth cycle signal, the first-effect circulating pump starts and introduces the material diverted from the second-effect heater into the first-effect heater for circulating heating. The material vapor separated from the first-effect heater enters the first-effect separator, and the material separated from the first-effect separator enters the first-effect heater for circulating heating.

[0012] In response to the density reaching the target signal, the main discharge valve opens, and the first-effect circulating pump discharges the material that has been circulated and heated by the first-effect heater from the discharge pipe.

[0013] Preferably, the concentration evaporation method further includes the following steps:

[0014] In response to the steam inlet signal, the steam regulating valve opens, and the steam in the steam inlet pipe and the condensate flash tank enters the first-effect heater to concentrate and evaporate the material in the first-effect heater. The material steam flowing out of the first-effect heater enters the first-effect separator for separation. The steam separated by the first-effect separator and the steam in the condensate flash tank enter the second-effect heater together to concentrate and evaporate the material in the second-effect heater. The material steam flowing out of the second-effect heater enters the second-effect separator for separation. The steam separated by the second-effect separator enters the third-effect second heater to concentrate and evaporate the material in the third-effect second heater. The material steam flowing out of the third-effect second heater enters the third-effect separator for separation. The steam separated by the third-effect separator enters the condenser for condensation.

[0015] Preferably, the concentration evaporation method further includes the following steps:

[0016] In response to the waste gas inlet signal, the waste gas enters the waste gas scrubbing tower for washing. The steam washed from the waste gas scrubbing tower enters the waste heat heating separator for concentration and evaporation. The steam separated from the waste heat heating separator enters the triple-effect first heater for concentration and evaporation. The steam from the triple-effect first heater enters the triple-effect second heater for concentration and evaporation. The material steam separated from the triple-effect first heater enters the triple-effect separator for separation. The steam separated from the triple-effect separator enters the condenser for condensation.

[0017] In response to the exhaust gas discharge signal, the induced draft fan starts and discharges the exhaust gas generated in the exhaust gas dewatering tank.

[0018] Preferably, the concentration evaporation method further includes the following steps:

[0019] In response to the condensate inlet signal, the condensate enters the condensate flash tank for flash evaporation to form steam;

[0020] In response to the first condensation signal, the tube bundle condensate pump starts and introduces the clean condensate produced after flash evaporation in the condensate flash tank into the condensate clean water pipe for discharge.

[0021] The condensate generated by steam condensation in the first-effect heater enters the second-effect heater, and the condensate generated by steam condensation in the second-effect heater enters the third-effect second heater. In response to the second condensation signal, the third-effect condensate pump starts and introduces the condensate generated by steam condensation in the first and second-effect heaters into the condensate wastewater pipe for discharge.

[0022] In response to the third condensation signal, the condenser condensate pump starts, and the condenser condensate pump introduces the condensate wastewater in the condenser into the condensate wastewater pipe for discharge.

[0023] In response to the fourth condensation signal, the waste gas scrubbing pump starts and re-inputs the condensate generated by the condensation of waste gas in the waste heat scrubbing tower back into the waste heat scrubbing tower for recycling, thus completing the scrubbing of the waste gas.

[0024] In response to the fifth condensation signal, the waste heat effect condensate pump starts, and the waste heat effect condensate pump introduces the condensate wastewater in the waste heat heating separator and waste heat scrubbing tower into the condensate wastewater pipe for discharge.

[0025] Preferably, the concentration evaporation method further includes the following steps:

[0026] In response to the exhaust signal, the vacuum pump starts and introduces the non-condensable gas in the first-effect heater into the second-effect heater, the non-condensable gas in the second-effect heater into the third-effect second heater, and the non-condensable gas in the third-effect second heater and the third-effect first heater into the condenser; the non-condensable gas in the condenser is introduced into the exhaust pipe by the vacuum pump and discharged.

[0027] Preferably, the concentration evaporation method further includes the following steps:

[0028] In response to the pump seal water inlet signal, the pump seal water inlet valves of each material pump and water pump are opened, and the pump seal water flows through each material pump and water pump respectively and then flows out from the pump seal return water pipe.

[0029] In response to the cooling water circulation signal, cooling water enters the condenser and circulates between the cooling tower and the condenser.

[0030] Based on the same inventive concept, this invention also provides a concentration evaporation device, including a single-effect evaporator, a double-effect evaporator, a triple-effect evaporator, a waste treatment device, a condenser, and a condensate flash tank. The single-effect evaporator includes a single-effect heater, a single-effect separator, and a single-effect circulating pump; the double-effect evaporator includes a double-effect heater, a double-effect separator, and a double-effect circulating pump; the triple-effect evaporator includes a triple-effect first heater, a triple-effect first circulating pump, a triple-effect separator, a triple-effect second heater, a triple-effect second circulating pump, and a triple-effect condensate pump; the waste treatment device includes a waste heat heating separator, a tail steam dewatering tank, a waste heat effect circulating pump, a waste heat scrubbing tower, and a waste heat effect condensate pump.

[0031] The inlet of the triple-effect second circulation pump is connected to the feed pipe; the outlet of the triple-effect second circulation pump is connected to the inlet of the triple-effect second heater; the second outlet of the triple-effect second heater is connected to the inlet of the triple-effect second circulation pump and the sewage pipe; the first outlet of the triple-effect second heater is connected to the second inlet of the triple-effect first heater; the outlet of the triple-effect first heater is connected to the sewage pipe and the inlet of the triple-effect first circulation pump; the outlet of the triple-effect first circulation pump is connected to the first inlet of the triple-effect first heater and the first inlet of the waste heat heating separator; and the outlet of the triple-effect separator is connected to the inlets of the triple-effect first circulation pump and the triple-effect second circulation pump. The outlet of the waste heat heating separator is connected to the inlet of the waste heat effect circulation pump and the sewage pipe. The outlet of the waste heat effect circulation pump is connected to the first inlet of the waste heat heating separator. The outlet of the tail steam dewatering tank is connected to the second inlet of the waste heat heating separator. The outlet of the waste heat effect circulation pump is also connected to the outlet of the second-effect circulation pump. The outlet of the second-effect circulation pump is connected to the inlet of the second-effect heater. The outlet of the second-effect heater is connected to the inlet of the second-effect circulation pump and the sewage pipe. The outlet of the second-effect separator is also connected to the inlet of the second-effect circulation pump. The outlet of the second-effect circulation pump is also connected to the outlet of the first-effect circulation pump. The outlet of the first-effect heater is connected to... The inlet and wastewater pipe of the first-effect circulating pump and the outlet of the first-effect separator are connected to the inlet of the first-effect circulating pump. The outlet of the first-effect circulating pump is connected to the inlet of the first-effect heater. The outlet of the first-effect circulating pump is also connected to the outlet and outlet pipe of the first-effect heater. The steam outlet and steam inlet pipe of the condensate flash tank are both connected to the steam inlet of the first-effect heater. The steam outlet of the first-effect heater is connected to the steam inlet of the first-effect separator. The steam outlet and steam inlet pipe of the first-effect separator are both connected to the steam inlet of the second-effect heater. The steam outlet of the second-effect heater is connected to the steam inlet of the second-effect separator. The steam outlet of the second-effect separator is connected to the first steam inlet of the second heater of the third-effect system. The steam outlet of the second-effect heater is connected to the first steam inlet of the triple-effect separator. The steam inlet of the waste heat scrubbing tower is connected to the waste steam pipe. The steam outlet of the waste heat scrubbing tower is connected to the steam inlet of the waste heat heating separator. The first steam outlet of the waste heat heating separator is connected to the steam inlet of the tail steam dehydration tank. The exhaust port of the tail steam dehydration tank is connected to the induced draft fan. The second steam outlet of the waste heat heating separator is connected to the steam inlet of the first-effect heater of the triple-effect separator. The second steam outlet of the first-effect heater of the triple-effect separator is connected to the second steam inlet of the second-effect heater of the triple-effect separator. The first steam outlet of the first-effect heater of the triple-effect separator is connected to the second steam inlet of the triple-effect separator. The steam outlet of the triple-effect separator is connected to the steam inlet of the condenser.

[0032] Preferably, the concentration evaporation equipment also includes a condenser condensate pump, a tube bundle condensate pump, and a waste gas scrubbing pump. The condensate outlet of the first-effect heater is connected to the condensate inlet of the second-effect heater, the condensate outlet of the second-effect heater is connected to the condensate inlet of the third-effect second heater, the condensate outlets of the third-effect second heater and the third-effect first heater are connected to a wastewater pipe and the inlet of the third-effect condensate pump, the outlet of the third-effect condensate pump is connected to a condensate wastewater pipe, the condensate outlet of the condenser is connected to the inlet of the condenser condensate pump, and the outlet of the condenser condensate pump is connected to the condensate wastewater pipe; condensate... The inlet of the flash tank is connected to the condensate inlet pipe, the outlet of the flash tank is connected to the inlet of the tube bundle condensate pump, and the outlet of the tube bundle condensate pump is connected to the condensate clean water pipe. The condensate outlet of the waste heat heating separator is also connected to the inlet of the waste heat efficiency condensate pump, and the outlet of the waste heat efficiency condensate pump is connected to the condensate sewage pipe. The first condensate outlet of the waste heat scrubbing tower is connected to the condensate outlet of the waste heat heating separator. The second condensate outlet of the waste heat scrubbing tower is connected to the inlet of the waste steam scrubbing pump, the outlet of the waste steam scrubbing pump is connected to the waste steam pipe, and the outlet of the waste steam scrubbing pump is also connected to the condensate inlet of the waste heat scrubbing tower.

[0033] Preferably, the concentration evaporation equipment also includes a vacuum pump, the condenser inlet is connected to an inlet pipe, and the condenser return outlet is connected to a return pipe; the pump seal inlets of the waste steam scrubbing pump, waste heat effect circulation pump, waste heat effect condensate pump, triple-effect first circulation pump, triple-effect second circulation pump, triple-effect condensate pump, condenser condensate pump, second-effect circulation pump, vacuum pump, first-effect circulation pump, and tube bundle condensate pump are all connected to pump seal inlet pipes; the pump seal outlets of the waste steam scrubbing pump, waste heat effect circulation pump, waste heat effect condensate pump, triple-effect first circulation pump, triple-effect second circulation pump, triple-effect condensate pump, condenser condensate pump, second-effect circulation pump, first-effect circulation pump, and tube bundle condensate pump are all connected to pump seal outlet pipes;

[0034] The non-condensable gas outlets of the first and second heaters of the triple-effect generator are connected to the steam outlet of the triple-effect separator. The non-condensable gas outlet of the first heater is connected to the steam outlet of the first-effect separator. The non-condensable gas outlet of the second heater is connected to the steam outlet of the second-effect separator. The first and second non-condensable gas outlets of the condenser are both connected to the inlet of the vacuum pump. The outlet of the vacuum pump is connected to the exhaust pipe.

[0035] Preferably, a first level transmitter is connected to the control port of the first-effect heater, the first level transmitter is connected to a first material regulating valve, and the first material regulating valve is located between the outlet of the second-effect circulating pump and the inlet of the first-effect heater.

[0036] A second level transmitter is connected to the control port of the double-effect heater. The second level transmitter is connected to a second material regulating valve. The second material regulating valve is located between the outlet of the waste heat circulation pump and the inlet of the double-effect heater.

[0037] The control port of the triple-effect second heater is connected to a third level transmitter, which is connected to a third material regulating valve. The third material regulating valve is installed on the feed pipe.

[0038] The control port of the waste heat heating separator is connected to a fourth level transmitter, which is connected to a fourth material regulating valve. The fourth material regulating valve is located between the outlet of the triple-effect first circulation pump and the inlet of the waste heat heating separator.

[0039] The control port of the waste heat scrubbing tower is connected to the fifth level transmitter, and the fifth level transmitter is connected to the fifth material regulating valve.

[0040] The beneficial effects of this invention are as follows: In this invention, the material first enters the second heater of the triple-effect process for concentration and evaporation, then enters the first heater of the triple-effect process and the triple-effect separator for concentration and evaporation, and then enters the second-effect evaporator and the first-effect evaporator in sequence for concentration and evaporation. This fully utilizes the thermal energy of the steam, resulting in more complete material evaporation, better evaporation effect, and higher evaporation efficiency. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of a waste heat scrubbing tower according to an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the tail steam dewatering tank according to an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the structure of a waste heat heating separator according to an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of the structure of the first triple-effect heater according to an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of the structure of a three-effect separator according to an embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram of the structure of a triple-effect second heater according to an embodiment of the present invention;

[0048] Figure 8 This is a schematic diagram of the structure of a condenser according to an embodiment of the present invention;

[0049] Figure 9 This is a schematic diagram of the structure of a two-effect separator according to an embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram of the structure of a dual-effect heater according to an embodiment of the present invention;

[0051] Figure 11 This is a schematic diagram of the structure of a single-effect separator according to an embodiment of the present invention;

[0052] Figure 12 This is a schematic diagram of the structure of a single-effect heater according to an embodiment of the present invention;

[0053] Figure 13 This is a schematic diagram of the structure of a condensate flash tank according to an embodiment of the present invention;

[0054] Figure 14 This is a schematic flowchart of a concentration and evaporation method according to an embodiment of the present invention; Detailed Implementation

[0055] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0056] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0057] Figures 1-13 An embodiment of the concentration evaporation equipment of the present invention is shown, including a first-effect evaporator 1, a second-effect evaporator 2, a third-effect evaporator 3, a waste treatment device 4, a condensate flash tank 5, and a condenser 6. The first-effect evaporator 1 includes a first-effect heater 11, a first-effect separator 12, and a first-effect circulating pump 13; the second-effect evaporator 2 includes a second-effect heater 21, a second-effect separator 22, and a second-effect circulating pump 23; the third-effect evaporator 3 includes a third-effect first heater 31, a third-effect first circulating pump 34, a third-effect separator 32, a third-effect second heater 33, a third-effect second circulating pump 35, and a third-effect condensate pump 36; the waste treatment device 4 includes a waste heat heating separator 41, a tail steam dewatering tank 42, a waste heat effect circulating pump 43, a waste heat scrubbing tower 44, and a waste heat effect condensate pump 45;

[0058] The steam outlet 51 and steam inlet pipe 40 of the condensate flash tank 5 are both connected to the steam inlet 113 of the first-effect heater 11. The steam outlet 114 of the first-effect heater 11 is connected to the steam inlet 122 of the first-effect separator 12. The steam outlet 123 and steam inlet pipe 40 of the first-effect separator 12 are both connected to the steam inlet 213 of the second-effect heater 21. The steam outlet 214 of the second-effect heater 21 is connected to the steam inlet 222 of the second-effect separator 22. The steam outlet 223 of the second-effect separator 22 is connected to the first steam inlet 334 of the third-effect second heater 33. The steam outlet 336 of the third-effect second heater 33 is connected to the first steam inlet 322 of the third-effect separator 32. The steam inlet 441 of the waste heat scrubbing tower 44 is connected to the waste steam pipe 50. The steam outlet 442 of the waste heat scrubbing tower 44 is connected to the steam inlet 414 of the waste heat heating separator 41. The first steam outlet 415 of the waste heat heating separator 41 is connected to the steam inlet 421 of the tail steam dehydration tank 42. The exhaust port 422 of the tail steam dehydration tank 42 is connected to the induced draft fan 7. The second steam outlet 416 of the waste heat heating separator 41 is connected to the steam inlet 316 of the triple-effect first heater 31. The second steam outlet 315 of the triple-effect first heater 31 is connected to the second steam inlet 335 of the triple-effect second heater 33. The first steam outlet 314 of the triple-effect first heater 31 is connected to the second steam inlet 323 of the triple-effect separator 32. The steam outlet 324 of the triple-effect separator 32 is connected to the steam inlet 63 of the condenser 6.

[0059] In this invention, the steam from the condensate flash tank 5 and the steam inlet pipe 40 first enters the first-effect heater 11 together, and then enters the first-effect separator 12. The steam from the first-effect separator 12 and the steam from the steam inlet pipe 40 enter the second-effect heater 21 and the third-effect first heater 31 together. The steam from the second-effect heater 21 enters the second-effect separator 22. The steam from the second-effect separator 22 enters the third-effect second heater 33. The steam from the third-effect first heater 31 enters the third-effect second heater 33 and the third-effect separator 32. The steam from the waste steam pipe 50 enters the waste steam scrubbing pump 46. The steam from the waste steam scrubbing pump 46 enters the waste heat heating separator 41. The steam from the waste heat heating separator 41 enters the third-effect first heater 31. The steam from the third-effect first heater 31 also enters the third-effect separator 32.

[0060] In this invention, the waste steam generated from other production processes in the workshop is washed by the waste steam washing pump 46 and then provides heat energy for the concentration and evaporation of materials in the waste heat heating separator 41, the triple-effect first heater 31 and the triple-effect second heater 33. This fully utilizes the heat energy of the waste steam, reduces the amount of steam consumed, and lowers the evaporation cost.

[0061] The inlet of the triple-effect second circulation pump 35 is connected to the inlet pipe 10, and the outlet of the triple-effect second circulation pump 35 is connected to the inlet 331 of the triple-effect second heater 33. The second outlet 333 of the triple-effect second heater 33 is connected to the inlet of the triple-effect second circulation pump 35 and the sewage pipe 30. The first outlet 332 of the triple-effect second heater 33 is connected to the second inlet 313 of the triple-effect first heater 31. The outlet 312 of the triple-effect first heater 31 is connected to the sewage pipe 30 and the triple-effect second circulation pump 35. The inlet of the first circulating pump 34 and the outlet of the third-effect first circulating pump 34 are connected to the first inlet 311 of the third-effect first heater 31 and the first inlet 411 of the waste heat heating separator 41. The outlet 321 of the third-effect separator 32 is connected to the inlets of the third-effect first circulating pump 34 and the third-effect second circulating pump 35. The outlet 413 of the waste heat heating separator 41 is connected to the inlet of the waste heat efficiency circulating pump 43 and the sewage pipe 30. The outlet of the waste heat efficiency circulating pump 43 is connected to the waste heat heating... The first inlet 411 of the separator 41 and the outlet 423 of the tail steam dewatering tank 42 are connected to the second inlet 412 of the waste heat heating separator 41. The outlet of the waste heat circulation pump 43 is also connected to the outlet of the second-effect circulation pump 23. The outlet of the second-effect circulation pump 23 is connected to the inlet 211 of the second-effect heater 21. The outlet 212 of the second-effect heater 21 is connected to the inlet of the second-effect circulation pump 23 and the sewage pipe 30. The outlet 221 of the second-effect separator 22 is also connected to the second-effect circulation pump 23. The feed inlet of the ring pump 23 and the discharge outlet of the second-effect circulating pump 23 are also connected to the discharge outlet of the first-effect circulating pump 13. The discharge outlet 112 of the first-effect heater 11 is connected to the feed inlet of the first-effect circulating pump 13 and the sewage pipe 30. The discharge outlet 121 of the first-effect separator 12 is connected to the feed inlet of the first-effect circulating pump 13. The discharge outlet of the first-effect circulating pump 13 is connected to the feed inlet 111 of the first-effect heater 11. The discharge outlet of the first-effect circulating pump 13 is also connected to the discharge outlet 112 of the first-effect heater 11 and the discharge pipe 20.

[0062] In this invention, the material first enters the triple-effect second heater 33, where it undergoes cyclic heating. The material diverted from the triple-effect second heater 33 then enters the triple-effect first heater 31 for cyclic heating. The steam generated after heating by the triple-effect second heater 33 and the triple-effect first heater 31 enters the triple-effect separator 32, where it separates the steam. The separated material re-enters the triple-effect first heater 31 and the triple-effect second heater 33 for cyclic heating. The material in the triple-effect first heater 31 is diverted to the waste heat separator 41 for further heating. The material in the waste heat heater 41 is diverted to the second-effect heater 21 for circulating heating. The material steam generated by the second-effect heater 21 enters the second-effect separator 22. The separated material re-enters the second-effect heater 21 for circulating heating. The material in the second-effect heater 21 is diverted to the first-effect heater 11 for circulating heating. The material steam generated by the first-effect heater 11 enters the first-effect separator 12. The separated material steam re-enters the first-effect heater 11 for circulating heating. When the material in the first-effect heater 11 reaches the preset concentration, it flows out through the discharge pipe 20.

[0063] In this invention, the material first enters the triple-effect second heater 33, and then sequentially enters the triple-effect first heater 31, waste heat heating separator 41, second-effect heater 21 and first-effect heater 11. Each effect evaporation device is circulated and heated, resulting in a large material circulation volume and low steam consumption, better evaporation effect and higher evaporation efficiency.

[0064] In one embodiment, the triple-effect evaporator further includes a condenser condensate pump 67, a tube bundle condensate pump 8, and a waste gas scrubbing pump 46. The condensate outlet 115 of the first-effect heater 11 is connected to the condensate inlet 215 of the second-effect heater 21. The condensate outlet 216 of the second-effect heater 21 is connected to the condensate inlet 337 of the third-effect second heater 33. The condensate outlet 338 of the third-effect second heater 33 and the condensate outlet 317 of the third-effect first heater 31 are connected to the wastewater pipe 30 and the inlet of the triple-effect condensate pump 36. The outlet of the triple-effect condensate pump 36 is connected to the condensate wastewater pipe 70. The condensate outlet 66 of the condenser 6 is connected to the inlet of the condenser condensate pump 67, and the outlet of the condenser condensate pump 67 is connected to the condensate wastewater pipe 70. The inlet 52 of the condensate flash tank 5 is connected to the condensate inlet pipe 60, and the outlet 53 of the condensate flash tank 5 is connected to the inlet of the tube bundle condensate pump 8. The outlet of the tube bundle condensate pump 8 is connected to the condensate clean water pipe 80. The condensate outlet 417 of the waste heat heating separator 41 is also connected to the inlet of the waste heat efficiency condensate pump 45. The outlet of the waste heat efficiency condensate pump 45 is connected to the condensate sewage pipe 70. The first condensate outlet 444 of the waste heat scrubbing tower 44 is connected to the condensate outlet 417 of the waste heat heating separator 41. The second condensate outlet 445 of the waste heat scrubbing tower 44 is connected to the inlet of the waste steam scrubbing pump 46. The outlet of the waste steam scrubbing pump 46 is connected to the waste steam pipe 50. The outlet of the waste steam scrubbing pump 46 is also connected to the condensate inlet 443 of the waste heat scrubbing tower 44.

[0065] In this invention, after the condensate is circulated, the clean condensate is discharged from the condensate clean water pipe 80 and can be reused; the condensate wastewater is discharged from the condensate wastewater pipe 70 and undergoes further treatment for reuse.

[0066] In one embodiment, the triple-effect evaporator further includes a vacuum pump 9, the inlet 61 of the condenser 6 is connected to an inlet pipe, and the return inlet 62 of the condenser 6 is connected to a return pipe; the pump seal inlets of the waste steam scrubbing pump 46, the waste heat effect circulation pump 43, the waste heat effect condensate pump 45, the triple-effect first circulation pump 34, the triple-effect second circulation pump 35, the triple-effect condensate pump 36, the condenser 6 condensate pump 67, the second-effect circulation pump 23, the vacuum pump 9, the first-effect circulation pump 13, and the tube bundle condensate pump 8 are all connected to the pump seal inlet pipe 100; the pump seal outlets of the waste steam scrubbing pump 46, the waste heat effect circulation pump 43, the waste heat effect condensate pump 45, the triple-effect first circulation pump 34, the triple-effect second circulation pump 35, the triple-effect condensate pump 36, the condenser condensate pump 67, the second-effect circulation pump 23, the first-effect circulation pump 13, and the tube bundle condensate pump 8 are all connected to the pump seal outlet pipe 110.

[0067] In this invention, the pump sealing water circulates between the pump sealing inlet pipe 100 and the pump sealing outlet pipe 110 to ensure the sealing effect of each water pump and material pump.

[0068] In one embodiment, the non-condensable gas outlet 318 of the triple-effect first heater 31 and the non-condensable gas outlet 339 of the triple-effect second heater 33 are connected to the steam outlet 324 of the triple-effect separator 32, the non-condensable gas outlet 116 of the first-effect heater 11 is connected to the steam outlet 123 of the first-effect separator 12, the non-condensable gas outlet 217 of the second-effect heater 21 is connected to the steam outlet 223 of the second-effect separator 22, the first non-condensable gas outlet 64 and the second non-condensable gas outlet 65 of the condenser 6 are both connected to the inlet of the vacuum pump 9, and the outlet of the vacuum pump 9 is connected to the exhaust pipe 90.

[0069] In this invention, the non-condensable gas in each effect device is discharged from the system by the vacuum pump 9, ensuring that each effect device is in a vacuum state.

[0070] In one embodiment, a first level transmitter 14 is connected to the control port 117 of the first-effect heater 11. The first level transmitter 14 is connected to a first material regulating valve 15, which is located between the outlet of the second-effect circulating pump 23 and the inlet 111 of the first-effect heater 11. The opening degree of the first material regulating valve 15 is controlled by the first level transmitter 14, thereby controlling the amount of material in the first-effect heater 11.

[0071] A second level transmitter 24 is connected to the control port 218 of the double-effect heater 21. The second level transmitter 24 is connected to a second material regulating valve 25, which is located between the outlet of the waste heat circulation pump 43 and the inlet 211 of the double-effect heater 21. The opening of the second material regulating valve 25 is controlled by the second level transmitter 24, thereby controlling the amount of material in the double-effect heater 21.

[0072] A third level transmitter 37 is connected to the control port 3310 of the triple-effect second heater 33. The third level transmitter 37 is connected to a third material regulating valve 38, which is located on the feed pipe 10. The opening degree of the third material regulating valve 38 is controlled by the third level transmitter 37, thereby controlling the amount of material in the triple-effect second heater 33.

[0073] The control port 418 of the waste heat heating separator 41 is connected to a fourth level transmitter 47, which is connected to a fourth material regulating valve 48. The fourth material regulating valve 48 is located between the outlet of the triple-effect first circulating pump 34 and the inlet of the waste heat heating separator 41. The opening degree of the fourth material regulating valve 48 is controlled by the fourth level transmitter 47, thereby controlling the amount of material in the waste heat heating separator 41.

[0074] The control port of the waste heat scrubbing tower 44 is connected to the fifth level transmitter 49, which is connected to the fifth material regulating valve 410. The opening degree of the fifth material regulating valve 410 is controlled by the fifth level transmitter 49, thereby controlling the amount of material in the waste heat scrubbing tower 44.

[0075] The first condensing outlet 444 of the waste heat scrubbing tower 44, the discharge port 413 of the waste heat heating separator 41, the first discharge port of the triple-effect first heater 31, the second discharge port 333 of the triple-effect second heater 33, the condensing outlet 317 of the triple-effect first heater 31 and the condensing outlet 338 of the triple-effect second heater 33, the condensing outlet 66 of the condenser 6, the discharge port 212 of the second-effect heater 21, and the discharge port 112 of the first-effect heater 11 are all connected to a sewage valve 301 and then to a sewage pipe 30. The sewage discharge can be conveniently adjusted by opening and closing the sewage valve 301.

[0076] Pump seal inlet pipe 100 is connected to pump seal inlet valve 1001 before the pump seal inlets of the following pumps: waste gas scrubbing pump 46, waste heat effect circulation pump 43, waste heat effect condensate pump 45, triple-effect first circulation pump 34, triple-effect second circulation pump 35, triple-effect condensate pump 36, condenser 6 condensate pump 67, second-effect circulation pump 23, vacuum pump 9, first-effect circulation pump 13, and tube bundle condensate pump 8. The opening and closing of pump seal inlet valve 1001 controls the entry of pump seal water into each pump and circulation pump.

[0077] Sampling valves 120 are installed after the discharge ports of waste heat effect circulating pump 43, triple-effect first circulating pump 34, triple-effect second circulating pump 35, and second-effect circulating pump 23, as well as after the outlet ports of waste steam scrubbing pump 46, waste heat effect condensate pump 45, triple-effect condensate pump 36, condenser 6 condensate pump 67, and tube bundle condensate pump 8; sampling valves 120 are also installed after the discharge ports of waste heat effect circulating pump 43, triple-effect first circulating pump 34, triple-effect second circulating pump 35, second-effect circulating pump 23, and first-effect circulating pump 13.

[0078] Sampling valves 120 are installed on the condensing pipe between the condensing outlet 115 of the first-effect heater 11 and the condensing inlet 215 of the second-effect heater 21, as well as on the condensing pipe between the second-effect heater 21 and the third-effect heater 33. The sampling valves 120 allow for rapid sampling of materials and condensate.

[0079] The waste steam scrubbing pump 46, the waste heat condensate pump 45, the triple-effect condensate pump 36, the condenser condensate pump 67, and the tube bundle condensate pump 8 are equipped with condensate inlet valves 130 in front of their inlets; the water inlet of each pump is controlled by opening and closing the condensate inlet valves 130.

[0080] A densitometer 140 is installed on the material pipeline between the outlet of the first-effect circulating pump 13 and the outlet 112 of the first-effect heater 11. The densitometer 140 is connected to a main discharge valve 201. The densitometer 140 detects the density of the material coming out of the first-effect circulating pump 13. When the density of the material coming out of the first-effect circulating pump 13 reaches the preset density, a control signal is sent to the main discharge valve 201, which opens and begins to discharge the material. A main feed valve 101 is installed on the feed pipe 10 and is used to control the feeding of the material into the feed pipe 10. A steam regulating valve 401 is installed on the steam inlet pipe 40 to regulate the amount of steam entering the concentration and evaporation equipment.

[0081] Vacuum gauges (not shown in the figure) are installed on the triple-effect first heater 31, triple-effect second heater 33, condenser 6, second-effect heater 21 and first-effect heater 11 to detect the internal pressure of each component;

[0082] Temperature sensors (not shown in the figure) are installed on the single-effect heater 11, the double-effect heater 21, the triple-effect first heater 31, the triple-effect second heater 33 and the waste heat heating separator 41 to monitor the temperature in each device.

[0083] Therefore, this invention discloses a concentration evaporation device. Waste steam generated from other production processes in the workshop is introduced into a waste heat scrubbing tower for washing via a waste steam pipe. After washing, the waste steam then enters a waste heat heating separator, a triple-effect first heater, and a triple-effect second heater in sequence, providing heat energy for the concentration evaporation of materials in the waste heat heating separator, the triple-effect first heater, and the triple-effect second heater. This fully utilizes the heat energy of the waste steam, consumes less steam, and reduces evaporation costs.

[0084] Figure 14 An embodiment of the concentration and evaporation method of the present invention is shown, including the following steps:

[0085] Step S11: In response to the vacuum compliance signal, the steam regulating valve opens, and the steam in the steam inlet pipe and the condensate flash tank enters the evaporation equipment in sequence; then the main feed valve opens, and feeding begins;

[0086] Step S12: In response to the first circulation signal, the triple-effect second circulation pump starts and introduces the material into the triple-effect second heater through the feed pipe for circulation heating. The material separated in the triple-effect second heater is diverted to the triple-effect first heater, and the material vapor separated in the triple-effect second heater enters the triple-effect separator.

[0087] Step S13: In response to the second circulation signal, the triple-effect first circulation pump starts, and the triple-effect first circulation pump introduces the material diverted from the triple-effect second heater into the triple-effect first heater for circulation heating. The material separated in the triple-effect first heater is diverted to the waste heat heating separator. The material vapor separated in the triple-effect first heater enters the triple-effect separator. The material separated in the triple-effect separator enters the triple-effect first heater and the triple-effect second heater respectively for circulation heating.

[0088] Step S14: In response to the third circulation signal, the waste heat effect circulation pump starts and introduces the material diverted from the first triple-effect heater into the waste heat heating separator for circulation heating. The material separated in the waste heat heating separator is diverted to the second-effect heater.

[0089] Step S15: In response to the fourth circulation signal, the second-effect circulation pump starts and introduces the material diverted from the waste heat heating separator into the second-effect heater for circulation heating. The material separated by the second-effect heater is diverted to the first-effect heater. The material vapor separated by the second-effect heater enters the second-effect separator. The material separated by the second-effect separator enters the second-effect heater for circulation heating.

[0090] Step S16: In response to the fifth cycle signal, the first-effect circulating pump starts and introduces the material diverted from the second-effect heater into the first-effect heater for circulating heating. The material vapor separated from the first-effect heater enters the first-effect separator, and the material separated from the first-effect separator enters the first-effect heater for circulating heating.

[0091] Step S17: In response to the density target signal, the main discharge valve opens, and the first-effect circulating pump discharges the material that has been circulated and heated by the first-effect heater from the discharge pipe.

[0092] In this invention, the material first enters the triple-effect second heater for concentration and evaporation, then enters the triple-effect first heater and triple-effect separator for further concentration and evaporation, and then sequentially enters the second-effect evaporator and first-effect evaporator for further concentration and evaporation. This fully utilizes the thermal energy of the steam, resulting in more complete material evaporation, better evaporation effect, and higher evaporation efficiency.

[0093] When the material enters each effect evaporation unit, the first, second, third, fourth, and fifth level transmitters monitor the liquid levels in the first-effect heater, the second-effect heater, the third-effect second heater, the waste heat heating separator, and the waste heat scrubbing tower, respectively. The following explanation will be based on the first-effect heater as an example.

[0094] A preset liquid level threshold for the first-effect heater is established. In this embodiment, the preset liquid level threshold for each effect heater is 50%. During continuous feeding, when the first liquid level transmitter detects that the liquid level in the first-effect heater is below 50%, the valve opening of the first material regulating valve is increased; when the first liquid level transmitter detects that the liquid level in the first-effect heater is below 50%, the valve opening of the first material regulating valve is decreased, thereby ensuring that the liquid level in the first-effect heater is always maintained at 50%. The regulating principles of the second, third, fourth, and fifth material regulating valves are the same as those of the first material regulating valve, and will not be described again here.

[0095] The following describes the process of steam entering the evaporation equipment, which includes the following steps:

[0096] Step S21: In response to the steam inlet signal, the steam regulating valve opens, and the steam in the steam inlet pipe and the condensate flash tank enters the first-effect heater to concentrate and evaporate the material in the first-effect heater. The material steam separated from the first-effect heater enters the first-effect separator for further separation. The steam flowing out of the first-effect separator and the steam in the condensate flash tank enter the second-effect heater together to concentrate and evaporate the material in the second-effect heater. The material steam flowing out of the second-effect heater enters the second-effect separator for further separation. The steam separated from the second-effect separator enters the third-effect second heater to concentrate and evaporate the material in the third-effect second heater. The material steam flowing out of the third-effect second heater enters the third-effect separator for further separation. The steam separated from the third-effect separator enters the condenser for condensation.

[0097] Step S22: In response to the waste gas inlet signal, the waste gas enters the waste gas scrubbing tower for scrubbing. The steam after scrubbing from the waste gas scrubbing tower enters the waste heat heating separator for concentration and evaporation. The steam separated from the waste heat heating separator enters the triple-effect first heater for concentration and evaporation. The steam from the triple-effect first heater enters the triple-effect second heater for concentration and evaporation. The material steam separated from the triple-effect first heater enters the triple-effect separator for separation. The steam separated from the triple-effect separator enters the condenser for condensation.

[0098] Step S23: In response to the exhaust gas discharge signal, the induced draft fan starts and discharges the exhaust gas generated in the exhaust gas dewatering tank.

[0099] In this invention, after the waste gas is washed by the waste gas scrubbing tower, it provides heat energy for the concentration and evaporation of materials in the waste heat heating separator, the first triple-effect heater and the second triple-effect heater, thereby making full use of the heat energy of the waste gas, reducing the consumption of waste gas and lowering the evaporation cost.

[0100] It should be noted that during the continuous injection of steam, the temperature sensor on the first-effect heater monitors the temperature inside the first-effect heater and presets the temperature threshold of the first-effect heater. In this embodiment, the preset temperature threshold of the first-effect heater is 90°C. When the temperature inside the first-effect heater is lower than 90°C, the temperature sensor sends a feedback signal to the steam regulating valve to increase the valve opening. When the temperature inside the first-effect heater is higher than 90°C, the valve opening of the steam regulating valve is reduced to keep the temperature inside the first-effect heater at 90°C, thereby reasonably controlling the steam consumption, avoiding resource waste, and reducing evaporation costs.

[0101] After steam enters the system, it exchanges heat with the material. The heat energy in the steam is transferred to the material. Therefore, a large amount of condensate will be generated during the material concentration and evaporation process. The specific steps of condensate circulation in the system are described below.

[0102] Step S31: In response to the condensate inlet signal, the condensate enters the condensate flash tank for flash evaporation to form steam;

[0103] Step S32: In response to the first condensation signal, the tube bundle condensate pump starts and introduces the clean condensate generated after flash evaporation in the condensate flash tank into the condensate clean water pipe for discharge.

[0104] Step S33: The condensate generated by steam condensation in the first-effect heater enters the second-effect heater, and the condensate generated by steam condensation in the second-effect heater enters the third-effect second heater. In response to the second condensation signal, the third-effect condensate pump starts and introduces the condensate generated by steam condensation in the first and second-effect heaters into the condensate wastewater pipe for discharge.

[0105] Step S34: In response to the third condensation signal, the condenser condensate pump starts, and the condenser condensate pump introduces the condensate wastewater in the condenser into the condensate wastewater pipe for discharge;

[0106] Step S35: In response to the fourth condensation signal, the waste gas scrubbing pump starts and re-inputs the condensate generated by the condensation of waste gas in the waste heat scrubbing tower back into the waste heat scrubbing tower for recycling to complete the scrubbing of waste gas.

[0107] Step S36: In response to the fifth condensation signal, the waste heat effect condensate pump starts and introduces the condensate wastewater generated by steam condensation in the waste heat heating separator and the condensate wastewater flowing out of the waste heat scrubbing tower into the condensate wastewater pipe for discharge.

[0108] In this invention, clean condensate from the flash condensate tank is discharged through the condensate clean water pipe, facilitating the reuse of clean condensate; the triple-effect condensate pump, waste heat condensate pump, and condensate condensate pump respectively discharge the condensate wastewater in the system through the condensate wastewater pipe, facilitating centralized treatment of the condensate wastewater.

[0109] It should be noted that the steam and materials do not directly enter the evaporation system; this concentration and evaporation method also includes the following steps:

[0110] Step S41: In response to the exhaust signal, the vacuum pump starts and introduces the non-condensable gas in the first-effect heater into the second-effect heater. The non-condensable gas in the second-effect heater is introduced into the third-effect second heater. The non-condensable gas in the third-effect second heater and the third-effect first heater is introduced into the condenser. The non-condensable gas in the condenser is introduced into the exhaust pipe by the vacuum pump and discharged.

[0111] Step S42: In response to the pump seal water inlet signal, the pump seal water inlet valves of each material pump and water pump are opened, and the pump seal water flows through each material pump and water pump respectively and then flows out from the pump seal return water pipe.

[0112] Step S43: In response to the cooling water circulation signal, cooling water circulates between the cooling tower and the condenser to complete the condensation of steam in the condenser.

[0113] In this invention, during the concentration and evaporation process, non-condensable gases in each evaporation device are discharged from the exhaust pipe through a vacuum pump; pump sealing water circulates in each water pump and material pump to ensure the sealing of each water pump and material pump; at the same time, cooling water also enters the concentration and evaporation equipment to provide a cold source for the condenser steam.

[0114] The above describes the specific steps of the flow and circulation of steam, materials, and condensate in the concentration and evaporation equipment. The following is an explanation of the entire evaporation process.

[0115] First, after completing the preliminary preparations, the vacuum pump starts in response to the exhaust signal and begins to exhaust, while the vacuum gauge monitors the vacuum in the condenser in real time.

[0116] Then, in response to the pump seal water inlet signal, the pump seal water inlet valves of each material pump and water pump are opened, and the pump seal water flows through each material pump and water pump and then flows out from the pump seal return water pipe to ensure the sealing effect of each water pump and material pump; at the same time, in response to the cooling water circulation signal, the cooling water circulates between the cooling tower and the condenser to complete the condensation of the steam in the condenser.

[0117] As the vacuum pump continuously exhausts gas, when the vacuum reaches -0.065MPa, in response to the vacuum standard signal, the main feed valve opens and feeding begins, and the material gradually enters each effect evaporation unit.

[0118] When the main material valve is opened, in response to the steam inlet signal, waste steam inlet signal, tail gas discharge signal and cooling water circulation signal, steam and waste steam enter the system, and the induced draft fan is also started to discharge the tail gas in the tail gas dewatering tank.

[0119] After 900 seconds of steam injection, each condensate pump turns on to discharge the condensate from the system.

[0120] As steam and waste gas are continuously injected, the material is continuously circulated and heated, and finally reaches the first-effect heater. The densitometer constantly monitors the material concentration at the outlet of the first-effect circulating pump. When the material concentration reaches the preset concentration threshold (in this embodiment, the preset concentration threshold is 26 μM), in response to the concentration reaching the standard signal, the main discharge valve opens and the material is discharged from the discharge pipe, thereby completing the entire concentration and evaporation process.

[0121] Therefore, this invention discloses a concentration and evaporation method and equipment. In this invention, the material first enters the triple-effect second heater for concentration and evaporation, then enters the triple-effect first heater and triple-effect separator for concentration and evaporation, and then enters the second-effect evaporation device and the first-effect evaporation device in sequence for concentration and evaporation. This fully utilizes the thermal energy of steam, resulting in more complete material evaporation, better evaporation effect, and higher evaporation efficiency.

[0122] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for concentration and evaporation, characterized in that, Including the following steps: In response to the vacuum compliance signal, the steam regulating valve opens, and the steam in the steam inlet pipe and the condensate flash tank enters the evaporation equipment in sequence; then the main feed valve opens, and feeding begins; In response to the first circulation signal, the triple-effect second circulation pump starts, and the triple-effect second circulation pump introduces the material into the triple-effect second heater through the feed pipe for circulation heating. The material separated in the triple-effect second heater is diverted to the triple-effect first heater, and the material vapor separated in the triple-effect second heater enters the triple-effect separator. In response to the second circulation signal, the triple-effect first circulation pump starts, and the triple-effect first circulation pump introduces the material diverted from the triple-effect second heater into the triple-effect first heater for circulation heating. The material separated from the triple-effect first heater is diverted to the waste heat heating separator, and the material vapor separated from the triple-effect first heater enters the triple-effect separator. The material separated from the triple-effect separator enters the triple-effect first heater and the triple-effect second heater respectively for circulation heating. In response to the third circulation signal, the waste heat effect circulation pump starts, and the waste heat effect circulation pump introduces the material diverted from the first triple-effect heater into the waste heat heating separator for circulation heating, and the material separated from the waste heat heating separator is diverted to the second-effect heater; In response to the fourth circulation signal, the second-effect circulation pump starts, and the second-effect circulation pump introduces the material diverted from the waste heat heating separator into the second-effect heater for circulation heating. The material separated by the second-effect heater is diverted to the first-effect heater, and the material vapor separated by the second-effect heater enters the second-effect separator. The material separated by the second-effect separator enters the second-effect heater for circulation heating. In response to the fifth cycle signal, the first-effect circulating pump starts, and the first-effect circulating pump introduces the material diverted from the second-effect heater into the first-effect heater for circulating heating. The material vapor separated by the first-effect heater enters the first-effect separator, and the material separated by the first-effect separator enters the first-effect heater for circulating heating. In response to the density target signal, the main discharge valve opens, and the first-effect circulating pump discharges the material that has been circulated and heated by the first-effect heater from the discharge pipe. In response to the steam inlet signal, the steam regulating valve opens, and the steam in the steam inlet pipe and the condensate flash tank enters the first-effect heater to concentrate and evaporate the material in the first-effect heater. The material steam flowing out of the first-effect heater enters the first-effect separator for separation. The steam separated by the first-effect separator and the steam in the condensate flash tank enter the second-effect heater together to concentrate and evaporate the material in the second-effect heater. The material vapor flowing out of the double-effect heater enters the double-effect separator for separation. The vapor separated by the double-effect separator enters the triple-effect second heater to concentrate and evaporate the material in the triple-effect second heater. The material vapor flowing out of the triple-effect second heater enters the triple-effect separator for separation. The vapor separated by the triple-effect separator enters the condenser for condensation. In response to the waste gas inlet signal, the waste gas enters the waste gas scrubbing tower for washing. The steam washed from the waste gas scrubbing tower enters the waste heat heating separator for concentration and evaporation. The steam separated from the waste heat heating separator enters the triple-effect first heater for concentration and evaporation. The steam separated from the triple-effect first heater enters the triple-effect second heater for concentration and evaporation. The material steam separated from the triple-effect first heater enters the triple-effect separator for separation. The steam separated from the triple-effect separator enters the condenser for condensation. In response to the exhaust gas discharge signal, the induced draft fan starts and discharges the exhaust gas generated in the exhaust gas dewatering tank.

2. The concentration and evaporation method according to claim 1, characterized in that, The concentration and evaporation method further includes the following steps: In response to the condensate inlet signal, the condensate enters the condensate flash tank for flash evaporation to form steam; In response to the first condensation signal, the tube bundle condensate pump starts, and the tube bundle condensate pump introduces the clean condensate generated after flash evaporation in the condensate flash tank into the condensate clean water pipe for discharge. The condensate generated by steam condensation in the first-effect heater enters the second-effect heater, and the condensate generated by steam condensation in the second-effect heater enters the third-effect second heater. In response to the second condensation signal, the third-effect condensate pump starts and introduces the condensate generated by steam condensation in the first and second-effect heaters into the condensate wastewater pipe for discharge. In response to the third condensation signal, the condenser condensate pump starts, and the condenser condensate pump introduces the condensate wastewater in the condenser into the condensate wastewater pipe for discharge. In response to the fourth condensation signal, the waste gas scrubbing pump starts, and the waste gas scrubbing pump re-inputs the condensate generated by the condensation of waste gas in the waste heat scrubbing tower back into the waste heat scrubbing tower for recycling to complete the scrubbing of waste gas. In response to the fifth condensation signal, the waste heat effect condensate pump starts, and the waste heat effect condensate pump introduces the condensate wastewater in the waste heat heating separator and the waste heat scrubbing tower into the condensate wastewater pipe for discharge.

3. The concentration and evaporation method according to claim 1, characterized in that, The concentration and evaporation method further includes the following steps: In response to the exhaust signal, the vacuum pump starts, and the vacuum pump introduces the non-condensable gas in the first-effect heater into the second-effect heater, the non-condensable gas in the second-effect heater into the third-effect second heater, and the non-condensable gas in the third-effect second heater and the third-effect first heater into the condenser; the non-condensable gas in the condenser is introduced into the exhaust pipe by the vacuum pump and discharged.

4. The concentration and evaporation method according to claim 1, characterized in that, The concentration and evaporation method further includes the following steps: In response to the pump seal water inlet signal, the pump seal water inlet valves of each material pump and water pump are opened, and the pump seal water flows through each material pump and water pump respectively, and then flows out from the pump seal return water pipe. In response to the cooling water circulation signal, cooling water enters the condenser and circulates between the cooling tower and the condenser.

5. A concentration and evaporation apparatus, characterized in that, The system includes a single-effect evaporator, a double-effect evaporator, a triple-effect evaporator, a waste treatment device, a condenser, and a flash condensate tank. The single-effect evaporator includes a single-effect heater, a single-effect separator, and a single-effect circulating pump. The double-effect evaporator includes a single-effect heater, a single-effect separator, and a single-effect circulating pump. The triple-effect evaporator includes a triple-effect first heater, a triple-effect first circulating pump, a triple-effect separator, a triple-effect second heater, a triple-effect second circulating pump, and a triple-effect condensate pump. The waste treatment device includes a waste heat heating separator, a tail steam dewatering tank, a waste heat effect circulating pump, a waste heat scrubbing tower, and a waste heat effect condensate pump. The inlet of the triple-effect second circulation pump is connected to the inlet pipe, and the outlet of the triple-effect second circulation pump is connected to the inlet of the triple-effect second heater. The second outlet of the triple-effect second heater is connected to the inlet of the triple-effect second circulation pump and the sewage pipe. The first outlet of the triple-effect second heater is connected to the second inlet of the triple-effect first heater. The outlet of the triple-effect first heater is connected to the sewage pipe and the inlet of the triple-effect first circulation pump. The outlet of the triple-effect first circulation pump is connected to the first inlet of the triple-effect first heater and the first inlet of the waste heat heating separator. The outlet of the triple-effect separator is connected to the inlets of the triple-effect first circulation pump and the triple-effect second circulation pump. The outlet of the waste heat heating separator is connected to the inlet of the waste heat efficiency circulation pump and the sewage pipe. The outlet of the waste heat efficiency circulation pump is connected to the waste... The first inlet of the waste heat separator is connected to the outlet of the tail steam dewatering tank, which is connected to the second inlet of the waste heat separator. The outlet of the waste heat circulation pump is also connected to the outlet of the second-effect circulation pump. The outlet of the second-effect circulation pump is connected to the inlet of the second-effect heater. The outlet of the second-effect heater is connected to the inlet of the second-effect circulation pump and the sewage pipe. The outlet of the second-effect separator is also connected to the inlet of the second-effect circulation pump. The outlet of the second-effect circulation pump is also connected to the outlet of the first-effect circulation pump. The outlet of the first-effect heater is connected to the inlet of the first-effect circulation pump and the sewage pipe. The outlet of the first-effect separator is connected to the inlet of the first-effect circulation pump. The outlet of the first-effect circulation pump is connected to the inlet of the first-effect heater. The outlet of the first-effect circulation pump is also connected to the outlet of the first-effect heater and the outlet pipe. The steam outlet and inlet pipe of the condensate flash tank are both connected to the steam inlet of the first-effect heater. The steam outlet of the first-effect heater is connected to the steam inlet of the first-effect separator. The steam outlet and inlet pipe of the first-effect separator are both connected to the steam inlet of the second-effect heater. The steam outlet of the second-effect heater is connected to the steam inlet of the second-effect separator. The steam outlet of the second-effect separator is connected to the first steam inlet of the third-effect second heater. The steam outlet of the third-effect second heater is connected to the first steam inlet of the third-effect separator. The steam inlet of the waste heat scrubbing tower is connected to the waste steam pipe. The steam outlet of the waste heat scrubbing tower is connected to the steam inlet of the waste heat heating separator. The first steam outlet of the waste heat heating separator is connected to the steam inlet of the tail steam dehydration tank. The exhaust port of the tail steam dehydration tank is connected to the induced draft fan. The second steam outlet of the waste heat heating separator is connected to the steam inlet of the first triple-effect heater. The second steam outlet of the first triple-effect heater is connected to the second steam inlet of the second triple-effect heater. The first steam outlet of the first triple-effect heater is connected to the second steam inlet of the triple-effect separator. The steam outlet of the triple-effect separator is connected to the steam inlet of the condenser.

6. The concentration and evaporation equipment according to claim 5, characterized in that, The concentration evaporation equipment also includes a condenser condensate pump, a tube bundle condensate pump, and a waste gas scrubbing pump. The condensate outlet of the first-effect heater is connected to the condensate inlet of the second-effect heater, and the condensate outlet of the second-effect heater is connected to the condensate inlet of the third-effect second heater. The condensate outlets of the third-effect second heater and the third-effect first heater are connected to the wastewater pipe and the inlet of the third-effect condensate pump. The outlet of the third-effect condensate pump is connected to the condensate wastewater pipe. The condensate outlet of the condenser is connected to the inlet of the condenser condensate pump, and the outlet of the condenser condensate pump is connected to the condensate wastewater pipe. The condensate flash evaporation... The inlet of the tank is connected to the condensate inlet pipe, the outlet of the condensate flash tank is connected to the inlet of the tube bundle condensate pump, and the outlet of the tube bundle condensate pump is connected to the condensate clean water pipe; the condensate outlet of the waste heat heating separator is also connected to the inlet of the waste heat efficiency condensate pump, the outlet of the waste heat efficiency condensate pump is connected to the condensate sewage pipe, the first condensate outlet of the waste heat scrubbing tower is connected to the condensate outlet of the waste heat heating separator, the second condensate outlet of the waste heat scrubbing tower is connected to the inlet of the waste steam scrubbing pump, the outlet of the waste steam scrubbing pump is connected to the waste steam pipe, and the outlet of the waste steam scrubbing pump is also connected to the condensate inlet of the waste heat scrubbing tower.

7. The concentration and evaporation equipment according to claim 6, characterized in that, The concentration and evaporation equipment also includes a vacuum pump; the inlet of the condenser is connected to an inlet pipe, and the return outlet of the condenser is connected to a return pipe; the pump seal inlets of the waste steam scrubbing pump, waste heat effect circulation pump, waste heat effect condensate pump, triple-effect first circulation pump, triple-effect second circulation pump, triple-effect condensate pump, condenser condensate pump, second-effect circulation pump, vacuum pump, first-effect circulation pump, and tube bundle condensate pump are all connected to pump seal inlet pipes; the pump seal outlets of the waste steam scrubbing pump, waste heat effect circulation pump, waste heat effect condensate pump, triple-effect first circulation pump, triple-effect second circulation pump, triple-effect condensate pump, condenser condensate pump, second-effect circulation pump, first-effect circulation pump, and tube bundle condensate pump are all connected to pump seal outlet pipes. The non-condensable gas outlets of the first and second triple-effect heaters are connected to the steam outlet of the triple-effect separator. The non-condensable gas outlet of the first-effect heater is connected to the steam outlet of the first-effect separator. The non-condensable gas outlet of the second-effect heater is connected to the steam outlet of the second-effect separator. The first and second non-condensable gas outlets of the condenser are both connected to the inlet of the vacuum pump. The outlet of the vacuum pump is connected to the exhaust pipe.

8. The concentration and evaporation equipment according to claim 5, characterized in that, A first level transmitter is connected to the control port of the first-effect heater. The first level transmitter is connected to a first material regulating valve. The first material regulating valve is located between the outlet of the second-effect circulating pump and the inlet of the first-effect heater. A second level transmitter is connected to the control port of the double-effect heater. The second level transmitter is connected to a second material regulating valve. The second material regulating valve is located between the outlet of the waste heat circulation pump and the inlet of the double-effect heater. A third level transmitter is connected to the control port of the triple-effect second heater. The third level transmitter is connected to a third material regulating valve, which is installed on the feed pipe. The control port of the waste heat heating separator is connected to a fourth level transmitter, which is connected to a fourth material regulating valve. The fourth material regulating valve is located between the outlet of the triple-effect first circulation pump and the inlet of the waste heat heating separator. The control port of the waste heat scrubbing tower is connected to the fifth level transmitter, and the fifth level transmitter is connected to the fifth material regulating valve.

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