CN204173942U - Rubbish leachate treatment system - Google Patents
Rubbish leachate treatment system Download PDFInfo
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- CN204173942U CN204173942U CN201420199175.5U CN201420199175U CN204173942U CN 204173942 U CN204173942 U CN 204173942U CN 201420199175 U CN201420199175 U CN 201420199175U CN 204173942 U CN204173942 U CN 204173942U
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Abstract
The utility model discloses a kind of rubbish leachate treatment system, comprises vaporizer, well heater and vapour compressor; Vaporizer is provided with vapour outlet, leachate feed-pipe, concentrated solution return line and concentrated solution outlet; Well heater is provided with concentrated solution entrance, heater steam import, concentrated solution outlet, condensation-water drain, uncondensated steam outlet; The vapour outlet of described vaporizer is connected to vapour compressor, the heater steam import of vapour compressor outlet well heater; The concentrated solution outlet of described vaporizer is divided into two-way, and a road is communicated to concentrated solution discharging pump, and another road is communicated to forced circulation pump, and forced circulation pump is communicated to the concentrated solution entrance of well heater, and the concentrated solution outlet of well heater is communicated to the concentrated solution return line of vaporizer.Vapo(u)rization system thermal source described in the utility model mainly adopts the secondary steam self produced.Secondary steam utilizes as thermal source by again.
Description
Technical field
The utility model relates to a kind of rubbish leachate treatment system, and particularly a kind of cost is low, energy consumption is low, operational management for the treatment of the vapo(u)rization system of garbage burning factory rubbish leachate, belongs to technical field of waste water processing easily.
Background technology
Along with the quickening of Chinese Urbanization pace of construction, the growth of population and the raising of living standards of the people, domestic waste is also growing.At present, the method for waste treatment and disposal mainly comprises garbage loading embeading, composting process, burning method etc., and burning method is relative to traditional garbage loading embeading, composting process, because having the advantage of the aspects such as minimizing, innoxious, resource utilization, obtains good development.
In order to ensure firing efficiency in Refuse Incineration Process, fresh rubbish need be piled ferment in refuse pit and burn again after 3 ~ 7 days, and this process creating rubbish leachate.Leaching vat is a kind of unmanageable poisonous and hazardous high concentrated organic wastewater, and in tawny or beige, the gas volatilized, with fetor, has harm to human body, and people can be made to produce the symptoms such as nauseating, hematuria, dizziness.
Method of evaporation is a kind of method for the treatment of refuse leaching vat, and evaporation is a physical process that volatile constituent is separated with nonvolatile element, is made up of two portions: heated solution makes the water vapour of water ebullition, gasification and constantly removing gasification.During rubbish leachate evaporation process, water boils from leaching vat, and pollutent remains in concentrated solution.All heavy metals and inorganics and most of organic volatility all weak than water, therefore can be retained in concentrated solution, only have some volatile hydrocarbon, the pollutent such as VFA and ammonia can enter steam, is finally present in phlegma.But the evaporation unit of existing treating refuse leaching vat be multiple-effect evaporator and transverse tube type falling-film evaporator, shortcoming is that evaporation unit is complicated, energy consumption is high, running cost is high, easy fouling, cleaning are complicated.
Utility model content
Utility model object: the purpose of this utility model is to relate to that a kind of cost is low, energy consumption is low, operational management is easily for the treatment of the vapo(u)rization system of garbage burning factory rubbish leachate.
Technical scheme: rubbish leachate treatment system described in the utility model, comprises vaporizer, well heater and vapour compressor; Vaporizer is provided with vapour outlet, leachate feed-pipe, concentrated solution return line and concentrated solution outlet; Well heater is provided with concentrated solution entrance, heater steam import, concentrated solution outlet, condensation-water drain, uncondensated steam outlet; The vapour outlet of described vaporizer is connected to vapour compressor, the heater steam import of vapour compressor outlet well heater; The concentrated solution outlet of described vaporizer is divided into two-way, and a road is communicated to concentrated solution discharging pump, and another road is communicated to forced circulation pump, and forced circulation pump is communicated to the concentrated solution entrance of well heater, and the concentrated solution outlet of well heater is communicated to the concentrated solution return line of vaporizer.
Further, water of condensation interchanger and gas heat exchanger is also comprised; The condensation-water drain of well heater is communicated to water of condensation interchanger; The uncondensated steam outlet of well heater is to gas heat exchanger, and leachate is communicated to the leachate feed-pipe of vaporizer again after water of condensation interchanger and gas heat exchanger heating.
Further, leachate is first communicated to water of condensation interchanger, then is communicated to gas heat exchanger, and then is communicated to the leachate feed-pipe of vaporizer.
Further, leachate is divided into two-way, is communicated to gas heat exchanger respectively and water of condensation interchanger converges into the leachate feed-pipe that a road is communicated to vaporizer again.
Further, solidifying water transfer tank, solidifying water pot and gas-liquid separator is also comprised; The condensation-water drain of described well heater is communicated with water of condensation interchanger by solidifying water transfer tank; Water of condensation interchanger is provided with the condensation-water drain being communicated with solidifying water pot; Gas heat exchanger is provided with the pneumatic outlet being communicated with gas-liquid separator; Described gas-liquid separator is provided with pneumatic outlet and liquid exit, and wherein pneumatic outlet expellant gas is disposed to air, and liquid exit is communicated to solidifying water pot; Described solidifying water transfer tank arranges first outlet pipe, and described solidifying water pot is provided with second exhaust pipe, and first outlet pipe and second exhaust pipe are all communicated to gas heat exchanger.
Further, described vaporizer is vertical tank body, and described well heater is horizontal tank body, is provided with multiple heating tube bundle in well heater, space in well heater is divided into heating tube bundle inside and heating tube bundle outside, concentrated solution carries out heat exchange with the steam of heating tube bundle outside in heating tube bundle.
Compared with prior art, its beneficial effect is the utility model: 1, vapo(u)rization system thermal source described in the utility model mainly adopts the secondary steam self produced.Secondary steam utilizes as thermal source by again.After secondary steam is collected together, carry out boosting temperature raising through vapour compressor, as the heating source of self in the well heater being delivered to vapo(u)rization system afterwards, while condensation the enthalpy heat trnasfer of self to the leaching vat of opposite side.Leaching vat after heating is produced secondary steam by while heating evaporation in vaporizer, constantly circulates thus.2, without the need to arranging refrigerating unit large-scale specially.After boosting temperature raising as the secondary steam condensation of thermal source after, can by interchanger with carry out liquid and carry out heat exchange, after the heat of self overwhelming majority passed to liquid, just leave system, both reclaimed energy, also serve the effect cooled.3, energy consumption is minimum.It utilizes secondary steam again as thermal source, be equivalent to a multiple-effect evaporator, but it does not need steam supply, it needs a small amount of electrical energy fed vapour compressor, by vapour compressor secondary steam boosted temperature raising to one slightly higher than secondary steam can position.4, the vapo(u)rization system described in native system is evaporated under negative pressure low temperature, saves steam consumption, and negative pressure low-temperature evaporation is conducive to reducing organic concentration in steam, improves organic removal effect.5, invest low, structure is simple, and operation runs easily.Structurally it is equivalent to a single-effect evaporator to vaporizer described in the utility model, and effect is equivalent to a multiple-effect evaporator, and it does not have the Controlling System of the complexity required by multiple-effect evaporator, and also comparatively multiple-effect is low for device fabrication cost.6, concentrated solution carries out heat exchange with the steam of heating tube bundle outside in the heating tube bundle of well heater, and in heating tube bundle, concentrated solution flow velocity is fast, and surging force is large, and heating tube bundle is less scaling.And transverse tube type vaporizer evaporates by spraying leaching vat in heating tube bundle outside, the outside easily fouling of heating tube bundle, vaporizer and the heater structure of the utility model design are simple, and it is also easy to clean.7, the leaching vat of input is first by water of condensation interchanger, promote certain temperature, again by the steam heating in gas heat exchanger, because although the steam in gas is roughly the same with the temperature of phlegma, but the heat of its release mostly is heat of condensation, a large amount of heats can be discharged when temperature reduces lower, thus improve the temperature before entering vaporizer after overall rubbish leachate preheats, save the more energy.
Accompanying drawing explanation
Fig. 1 is the utility model rubbish leachate treatment system schematic diagram.
Embodiment
Below technical solutions of the utility model are described in detail, but protection domain of the present utility model is not limited to described embodiment.
Embodiment:
The rubbish leachate treatment system of the present embodiment as shown in Figure 1, comprise vaporizer 1, well heater 2, vapour compressor 3, vaporizer body is vertical tank body, vaporizer top is provided with vapour outlet 4, be provided with rubbish leachate feed-pipe 5 and concentrated solution return line 6 in the middle part of vaporizer, vaporizer bottom is provided with concentrated solution outlet 7; Multiple concentrated solution heating tube bundle 8 is provided with in well heater, vaporizer concentrated solution outlet 7 is connected by forced circulation pump 9 with the concentrated solution entrance 10 being communicated with well heater 2 heating tube bundle, heater heats tube bank outlet 12 connects vaporizer concentrated solution backflow import 6, and vaporizer vapour outlet 4 is connected by vapour compressor 3 with heater steam import 11.
Vaporizer inside arranges steam-out (SO) pipe, and steam-out (SO) pipe thermal source is garbage burning factory steam.Preheating percolate when steam-out (SO) is for starting shooting.
Heater base is provided with condensation-water drain 13, and condensation-water drain is connected with solidifying water transfer tank 16, and solidifying water transfer tank 16 is connected with water of condensation interchanger 17, and rubbish leachate feed-pipe also connects water of condensation interchanger.Water of condensation enters solidifying water pot 18 after the heat exchange of water of condensation interchanger, and solidifying water pot is provided with drip pipe, and water of condensation enters next process process.
Well heater 2 is provided with well heater uncondensated steam outlet 14, solidifying water transfer tank 16 top is provided with first outlet pipe 21, solidifying water pot 18 top is provided with second exhaust pipe 22, well heater uncondensated steam outlet 14, first outlet pipe 21 are all connected gas heat exchanger 19 with second exhaust pipe 22, gas heat exchanger outlet connects gas-liquid separator 20, gas-liquid separator pneumatic outlet connects vacuum pump 23, vacuum pump 23 withdrawing gas from gas-liquid separator is disposed to air, and gas-liquid separator liquid exit connects solidifying water pot 18.Water of condensation interchanger 17 and gas heat exchanger 19 are arranged in parallel.But both also can be arranged in series, and from the Article 6 of beneficial effect, water of condensation interchanger 17 of first connecting, then gas heat exchanger 19 of connecting, the preheat efficiency of rubbish leachate can be higher.
Concentrated solution discharging pump 15 is connected with between vaporizer concentrated solution outlet 7 and forced circulation pump 9.
The equipment of vapo(u)rization system works under negative pressure, first, steam-out (SO) passes in the rubbish leachate of base of evaporator, heating rubbish leachate, rubbish leachate is evaporated under negative pressure, water in leaching vat and ammonia become steam and are raised to vaporizer top, rise to through vapour compressor compression temperature again and pass into well heater a little more than after boiling point, the leaching vat of vaporizer bottom is got in the heating tube bundle of heater body through forced circulation pump, thermal energy transfer is given the concentrated solution in tube bank by steam, concentrated solution temperature is back in vaporizer after raising evaporates again, continuous circulation.The steam heating rubbish leachate that native system utilizes evaporation self to produce, saves the energy.
Evaporation start rear system produce water of condensation and vapor temperature higher, recoverable.In water of condensation interchanger and gas heat exchanger, heat exchange is carried out with water of condensation, solidifying steam/a small amount of uncondensated steam before rubbish leachate enters vaporizer, while rubbish leachate temperature improves, water of condensation and vapor temperature reduce, reclaim energy, and without the need to arranging special refrigerating unit.Can close steam-out (SO) after native system normally runs, the energy only utilizing system self to produce and the electric energy of vapour compressor can make evaporation steady running.
Water of condensation after heat exchange enters down one treatment process, can be the technique such as ammonia aeration, ion-exchange, and the non-condensable gases after gas-liquid separation is squeezed in garbage burning factory incinerator after being extracted out by vacuum pump, prevents secondary pollution.Concentrated solution by discharging pump continuously or interval discharge, squeeze into rubbish feed bin laggard enter incinerator burn.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.
Claims (5)
1. a rubbish leachate treatment system, is characterized in that, comprises vaporizer (1), well heater (2) and vapour compressor (3); Vaporizer (1) is provided with vapour outlet (4), leachate feed-pipe (5), concentrated solution return line (6) and concentrated solution outlet (7); Well heater (2) is provided with concentrated solution entrance, heater steam import (11), concentrated solution outlet, condensation-water drain (13), uncondensated steam outlet; The vapour outlet (4) of described vaporizer (1) is connected to vapour compressor (3), the heater steam import of vapour compressor (3) outlet well heater (2); The concentrated solution outlet (7) of described vaporizer is divided into two-way, one tunnel is communicated to concentrated solution discharging pump (15), another road is communicated to forced circulation pump (9), forced circulation pump (9) is communicated to the concentrated solution entrance of well heater (2), and the concentrated solution outlet of well heater (2) is communicated to the concentrated solution return line (6) of vaporizer (1).
2. rubbish leachate treatment system according to claim 1, is characterized in that, comprises water of condensation interchanger (17) and gas heat exchanger (19); The condensation-water drain (13) of well heater (2) is communicated to water of condensation interchanger (17); The uncondensated steam outlet of well heater (2) is to gas heat exchanger (19), and leachate is communicated to the leachate feed-pipe (5) of vaporizer (1) again after water of condensation interchanger (17) and gas heat exchanger (19) heating.
3. rubbish leachate treatment system according to claim 2, it is characterized in that, leachate is first communicated to water of condensation interchanger (17), then is communicated to gas heat exchanger (19), and then is communicated to the leachate feed-pipe of vaporizer (1).
4. rubbish leachate treatment system according to claim 2, it is characterized in that, leachate is divided into two-way, is communicated to gas heat exchanger (19) respectively and water of condensation interchanger (17) converges into the leachate feed-pipe that a road is communicated to vaporizer (1) again.
5. rubbish leachate treatment system according to claim 2, is characterized in that, comprises solidifying water transfer tank (16), solidifying water pot (18) and gas-liquid separator (20); The condensation-water drain (13) of described well heater is communicated with water of condensation interchanger (17) by solidifying water transfer tank (16); Water of condensation interchanger (17) is provided with the condensation-water drain being communicated with solidifying water pot (18); Gas heat exchanger (19) is provided with the pneumatic outlet being communicated with gas-liquid separator (20); Described gas-liquid separator (20) is provided with pneumatic outlet and liquid exit, and wherein pneumatic outlet expellant gas is disposed to air, and liquid exit is communicated to solidifying water pot (18); Described solidifying water transfer tank (16) arranges first outlet pipe (21), described solidifying water pot (18) is provided with second exhaust pipe (22), and first outlet pipe (21) and second exhaust pipe (22) are all communicated to gas heat exchanger (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199175.5U CN204173942U (en) | 2014-04-22 | 2014-04-22 | Rubbish leachate treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199175.5U CN204173942U (en) | 2014-04-22 | 2014-04-22 | Rubbish leachate treatment system |
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| Publication Number | Publication Date |
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| CN204173942U true CN204173942U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199175.5U Withdrawn - After Issue CN204173942U (en) | 2014-04-22 | 2014-04-22 | Rubbish leachate treatment system |
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| CN (1) | CN204173942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910399A (en) * | 2014-04-22 | 2014-07-09 | 东南大学 | Garbage leachate treatment system |
| CN106348368A (en) * | 2015-07-16 | 2017-01-25 | 中广核工程有限公司 | Heat pump evaporation system and heat pump evaporation method used for processing low-activity liquid waste in nuclear plant |
-
2014
- 2014-04-22 CN CN201420199175.5U patent/CN204173942U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910399A (en) * | 2014-04-22 | 2014-07-09 | 东南大学 | Garbage leachate treatment system |
| CN106348368A (en) * | 2015-07-16 | 2017-01-25 | 中广核工程有限公司 | Heat pump evaporation system and heat pump evaporation method used for processing low-activity liquid waste in nuclear plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150225 Effective date of abandoning: 20160420 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |