CN220618504U - High-efficient denitrification negative pressure low temperature evaporation plant - Google Patents
High-efficient denitrification negative pressure low temperature evaporation plant Download PDFInfo
- Publication number
- CN220618504U CN220618504U CN202321788091.0U CN202321788091U CN220618504U CN 220618504 U CN220618504 U CN 220618504U CN 202321788091 U CN202321788091 U CN 202321788091U CN 220618504 U CN220618504 U CN 220618504U
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- Prior art keywords
- separator
- pump
- heater
- temperature evaporation
- negative pressure
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- 238000001704 evaporation Methods 0.000 title claims abstract description 16
- 230000008020 evaporation Effects 0.000 title claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000012153 distilled water Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011550 stock solution Substances 0.000 abstract description 8
- 239000002351 wastewater Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a high-efficiency denitrification negative pressure low-temperature evaporation device which comprises a heater, wherein a top pipeline of the heater is connected with a separator, a circulating pump is sleeved at the bottom end of the heater, the other end of the circulating pump is connected with the separator pipeline, and a slurry pump is connected to a pipeline between the separator and the circulating pump. According to the utility model, the stock solution is subjected to PH value control through the stock solution pretreatment mechanism, the scaling on the surface of the tube nest can be reduced, the effect of improving the ammonia nitrogen removal rate is achieved, meanwhile, the pressure of the separator is controlled by the vacuum pump, so that low-temperature evaporation is realized, the scaling degree of wastewater on the inner wall of the tube nest can be slowed down, the equipment is always in a high-efficiency working condition, the size of the vacuum degree directly influences the denitrification effect, the denitrification effect can be ensured through the high-efficiency demisting net in the separator, the ammonia nitrogen in the wastewater is removed, the NH3-N removal rate can reach 92-97%, and the power consumption, the medicament cost and the maintenance difficulty can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a high-efficiency denitrification negative pressure low-temperature evaporation device.
Background
The industrial wastewater has the characteristics of high pollutant concentration, high treatment difficulty, strong toxicity and the like, so that the influence degree of the industrial wastewater on the environment is not ignored, various industries in China are in vigorous development in recent years, the generated wastewater amount is also rapidly increased, the ammonia nitrogen content of the wastewater generated by the industries is high, the concentration can reach 2500-4500mg/L, a process flow mainly based on forced growth is generally adopted, the forced biochemical process scheme is adopted to treat the high ammonia nitrogen wastewater according to the project operation condition, a large amount of carbon sources and sodium carbonate are required to be added, the ammonia nitrogen removal effect is unstable, the occupied area is large, and the high-efficiency denitrification negative pressure low-temperature evaporation device is provided for the purpose.
Disclosure of Invention
The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the utility model is as follows:
the utility model provides a high-efficient nitrogen removal negative pressure low temperature evaporation plant, includes the heater, its characterized in that, the top pipe connection of heater has the separator, and the bottom of heater has cup jointed the circulating pump, the other end and the separator pipe connection of circulating pump, be connected with the thick liquids pump on the pipeline between separator and the circulating pump, the other end of thick liquids pump is connected with heat exchanger, the other end of heat exchanger is connected with the liquid inlet pump, the other end of liquid inlet pump is connected with stoste pretreatment mechanism, the top of separator is connected with vapor compressor, one side of heater bottom is connected with the distillation pitcher, and the middle part of heater is connected with the vacuum pump, the opposite side of vacuum pump is connected with the gas-liquid separation jar.
Preferably, the separator is internally equipped with a high efficiency demister screen.
Preferably, the number of the heat exchangers is two, the two heat exchangers are respectively connected with a distilled water pump and a slurry pump, and the discharge ports of the two heat exchangers are respectively used for discharging distilled water and slurry.
By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:
according to the utility model, the stock solution is subjected to PH value control through the stock solution pretreatment mechanism, so that scaling on the surface of the tube nest can be reduced, the effect of improving the ammonia nitrogen removal rate is achieved, meanwhile, the pressure of the separator is controlled by the vacuum pump, so that low-temperature evaporation is realized, the scaling degree of wastewater on the inner wall of the tube nest can be slowed down, the equipment is always in a high-efficiency working condition, the size of the vacuum degree directly influences the denitrification effect, the denitrification effect can be ensured through the high-efficiency demisting net in the separator, and the ammonia nitrogen and NH (NH) of wastewater are removed 3 The removal rate of N can reach 92-97%, and the power consumption, the medicament cost and the maintenance and overhaul difficulty can be effectively reduced.
Drawings
FIG. 1 is an overall schematic of an embodiment of the present utility model.
Reference numerals:
101. a stock solution pretreatment mechanism; 102. a liquid inlet pump; 103. a heat exchanger; 104. a slurry pump; 105. a separator; 106. a high-efficiency defogging net; 107. a vapor compressor; 108. a heater; 109. a circulation pump; 110. a distilled water tank; 111. a distilled water pump; 112. a vacuum pump; 113. a gas-liquid separation tank.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
The following describes a high-efficiency denitrification negative pressure low-temperature evaporation device according to some embodiments of the present utility model with reference to the accompanying drawings.
Examples:
referring to fig. 1, the high-efficiency denitrification negative pressure low-temperature evaporation device provided by the utility model comprises a heater 108, wherein a top pipeline of the heater 108 is connected with a separator 105, a bottom end of the heater 108 is sleeved with a circulating pump 109, the other end of the circulating pump 109 is connected with the separator 105 in a pipeline, a high-efficiency demisting net 106 is arranged in the separator 105, a slurry pump 104 is connected to a pipeline between the separator 105 and the circulating pump 109, the other end of the slurry pump 104 is connected with a heat exchanger 103, the other end of the heat exchanger 103 is connected with a liquid inlet pump 102, the other end of the liquid inlet pump 102 is connected with a raw liquid pretreatment mechanism 101, the top of the separator 105 is connected with a vapor compressor 107, one side of the bottom of the heater 108 is connected with a distilled water tank 110, the middle part of the heater 108 is connected with a vacuum pump 112, the other side of the vacuum pump 112 is connected with a gas-liquid separation tank 113, the two heat exchangers 103 are respectively connected with a distilled water pump 111 and a slurry pump 104, and the discharge ports of the two heat exchangers 103 are respectively used for discharging distilled water and slurry.
Specifically, the PH value of the stock solution is adjusted to be acidic through the stock solution pretreatment mechanism 101, so that evaporation is performed under the weak acid condition, the equipment scaling rate can be relieved, and ammonia nitrogen is not easily released under the weak acid condition, so that the water quality of the effluent distilled water is better than the water quality of evaporation under neutral or alkaline conditions, heat is recovered by adopting the heat exchanger 103, the energy efficiency of the equipment is reduced, the operation cost is reduced, the high-efficiency demisting net 106 is arranged in the separator 105 to separate gas from liquid, the quality of the effluent water quality is ensured, and the vacuum pump 112 maintains the operation negative pressure in the whole process, so that the operation of the device is stable, and the water quality is further ensured.
The working principle and the using flow of the utility model are as follows: firstly, high-salt wastewater is conveyed into a stock solution pretreatment mechanism 101 through a pump to adjust the pH value to 5.5-6.5, pretreated water is conveyed into two heat exchangers 103 through a liquid inlet pump 102, energy of liquid outside the system is recovered and discharged, the energy enters the bottom of a separator 105 and is mixed with original circulating liquid, the circulating pump 109 is conveyed into a heater 108 to exchange heat with tube side steam, the evaporated gas and liquid are subjected to flash evaporation in the separator 105, the evaporated gas and liquid are subjected to gas-liquid separation through a high-efficiency demisting net 106 above the inside of the separator 105, then the evaporated gas and liquid are heated by the tube side of the heater 108 through the tube side after being heated and pressurized by a steam compressor 107, latent heat is discharged, condensed into distilled water which is temporarily stored in a distilled water tank 110, the distilled water pump 111 is conveyed into the heat exchanger 103 to recover energy and then discharged outside after reaching standards, otherwise, non-condensable gas in the heater 108 is conveyed into a gas and liquid separation tank 113 through a vacuum pump 112 to be separated and discharged out of the system.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (3)
1. The utility model provides a high-efficient denitrification negative pressure low temperature evaporation plant, includes heater (108), its characterized in that, the top pipeline of heater (108) is connected with separator (105), and the bottom of heater (108) has cup jointed circulating pump (109), the other end and the separator (105) pipe connection of circulating pump (109), be connected with thick liquids pump (104) on the pipeline between separator (105) and circulating pump (109), the other end of thick liquids pump (104) is connected with heat exchanger (103), the other end of heat exchanger (103) is connected with feed pump (102), the other end of feed pump (102) is connected with stoste pretreatment unit (101), the top of separator (105) is connected with vapor compressor (107), one side of heater (108) bottom is connected with distillation pitcher (110), and the middle part of heater (108) is connected with vacuum pump (112), the opposite side of vacuum pump (112) is connected with gas-liquid separation jar (113).
2. The high-efficiency denitrification negative pressure low-temperature evaporation device according to claim 1, wherein the separator (105) is internally provided with a high-efficiency demister net (106).
3. The high-efficiency denitrification negative pressure low-temperature evaporation device according to claim 1, wherein the number of the heat exchangers (103) is two, the two heat exchangers (103) are respectively connected with a distilled water pump (111) and a slurry pump (104), and the discharge ports of the two heat exchangers (103) are respectively used for discharging distilled water and slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321788091.0U CN220618504U (en) | 2023-07-07 | 2023-07-07 | High-efficient denitrification negative pressure low temperature evaporation plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321788091.0U CN220618504U (en) | 2023-07-07 | 2023-07-07 | High-efficient denitrification negative pressure low temperature evaporation plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220618504U true CN220618504U (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321788091.0U Active CN220618504U (en) | 2023-07-07 | 2023-07-07 | High-efficient denitrification negative pressure low temperature evaporation plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220618504U (en) |
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2023
- 2023-07-07 CN CN202321788091.0U patent/CN220618504U/en active Active
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