CN214218249U - Filler formula evaporation plant - Google Patents
Filler formula evaporation plant Download PDFInfo
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- CN214218249U CN214218249U CN202022233662.7U CN202022233662U CN214218249U CN 214218249 U CN214218249 U CN 214218249U CN 202022233662 U CN202022233662 U CN 202022233662U CN 214218249 U CN214218249 U CN 214218249U
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Abstract
The utility model provides a filler formula evaporation plant, filler formula evaporation plant includes: the evaporation chamber comprises at least two filler units which are arranged in a stacked mode, and each filler unit is filled with filler; an air inlet disposed below the packing unit, through which air enters the evaporation chamber; the liquid distributor is arranged above the packing units and used for distributing the heated liquid to be evaporated to the packing units, and the liquid to be evaporated is in gas-liquid contact with air in each packing unit; the air outlet is arranged at the top of the evaporation chamber, and the damp and hot air generated after the gas-liquid contact is discharged out of the evaporation chamber through the air outlet; and the concentrated water discharge port is arranged at the bottom of the evaporation chamber and is used for discharging concentrated water generated after the liquid to be evaporated is evaporated. The utility model provides a filler formula evaporation plant realizes treating the abundant mass transfer heat transfer of evaporation liquid and air through two at least filler units of range upon range of setting, and mass transfer heat transfer efficiency is high, equipment space utilization is high.
Description
Technical Field
The utility model relates to a waste treatment technical field, specifically, the utility model relates to a filler formula evaporation plant.
Background
The treatment of high-concentration salt-containing wastewater in the industries of petrochemical industry, coal chemical industry, landfill leachate, hazardous waste disposal and the like is difficult, and the water quality has high inorganic salt (including Cl)-、NO3 2-、Na+、K+) And also has higher COD (chemical oxygen demand), ammonia nitrogen and the like, so that the treatment process and equipment have strict requirements, for example, high salt components can cause the failure of a conventional biochemical system and high Cl-The content causes severe corrosion of equipment. The problems of evaporator scaling and blockage, equipment corrosion, substandard condensate water and the like can be caused by directly adopting a conventional evaporator for treatment. Therefore, high-concentration salt-containing wastewater is a great problem in the current water treatment industry.
For the sewage, the biochemical and physicochemical cooperative treatment is usually adopted, for example, the pretreatment, biochemical treatment, advanced treatment and evaporation means are adopted, so that not only can COD and ammonia nitrogen be removed, but also high-salt components can be subjected to water evaporation treatment. The water can be treated by directly adopting a pretreatment and evaporation treatment mode, and the evaporation condensate water can reach the standard by controlling evaporation conditions and subsequent physicochemical or biochemical treatment.
At present, evaporators suitable for treating high-concentration salt-containing wastewater include falling film type evaporators, forced circulation type evaporators and the like. However, the condensate water of the conventional evaporation method is difficult to reach the standard, and COD and ammonia nitrogen in the condensate water are inevitably overproof along with the rise of the evaporation temperature. This requires the evaporation system to carry out secondary treatment subsequently, and the aforesaid mode can handle the rising of treatment cost, and owing to adopt dividing wall type heat transfer mode, easily produce the scale deposit on the metal heat transfer surface, and high organic matter concentration can cause the heat exchange tube to paste stifled, influences the steady operation of evaporimeter.
The submerged combustion evaporator is suitable for treating high-concentration salt-containing wastewater, and adopts high-temperature flue gas generated by natural gas combustion as a heat source to realize an evaporation concentration process by directly contacting with the high-salt wastewater. However, the process requires high consumption of natural gas and high operation cost, and generates a large amount of non-condensable gas to be reasonably disposed, so that the operation cost is increased.
Therefore, it is necessary to provide a new evaporation device to solve the problem of difficult treatment of high-salinity wastewater.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
To the deficiency of prior art, the utility model provides a filler formula evaporation plant in one aspect, filler formula evaporation plant includes:
the evaporation chamber comprises at least two filler units which are arranged in a stacked mode, and each filler unit is filled with filler;
an air inlet disposed below the at least two packing units, through which air enters the evaporation chamber;
the liquid distributor is arranged above the at least two packing units and used for distributing the heated liquid to be evaporated to the packing units, and the liquid to be evaporated and the air are in gas-liquid contact in each packing unit so as to evaporate the liquid to be evaporated;
the air outlet is arranged at the top of the evaporation chamber, and the damp and hot air generated after the gas-liquid contact is discharged out of the evaporation chamber through the air outlet;
and the concentrated water discharge port is arranged at the bottom of the evaporation chamber and is used for discharging concentrated water generated after the liquid to be evaporated is evaporated.
In one embodiment, the packed evaporation device further comprises a cleaning shower pipe arranged above each packing unit and used for spraying cleaning agent to clean the packing.
In one embodiment, the filler type evaporation device further comprises a cleaning agent storage tank for providing a cleaning agent for the cleaning spray pipes, the cleaning agent storage tank is connected with a cleaning dosing pump, and a first electric adjusting valve is arranged between the cleaning dosing pump and each cleaning spray pipe.
In one embodiment, the packed evaporation device further comprises a temperature, humidity and pressure sensor disposed above each of the packing units for measuring the temperature, humidity and pressure of each of the packing units.
In one embodiment, the temperature, humidity, pressure sensors, the cleaning dosing pump and the first electrically actuated regulator valve are in communication with a control device.
In one embodiment, the bottom of the evaporation chamber is connected with the cleaning agent storage tank through a second electric regulating valve so as to circulate the cleaning agent at the bottom of the evaporation chamber to the cleaning agent storage tank.
In one embodiment, the material of the housing of the evaporation chamber and/or the filler comprises a non-metallic material.
The utility model provides a filler formula evaporation plant realizes treating the abundant mass transfer heat transfer of evaporation liquid and air through two at least filler units of range upon range of setting, and mass transfer heat transfer efficiency is high to the problem that energy and equipment space utilization are low in the evaporation process has been solved.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles and devices of the invention. In the drawings, there is shown in the drawings,
fig. 1 is a schematic structural diagram of a packed evaporation device according to an embodiment of the present invention;
fig. 2 is a radial cross-sectional view of a cleaning shower in an embodiment of the present invention.
Reference numerals:
101: an evaporation chamber; 102: the liquid to be evaporated;
103: a liquid distributor; 104: a filler unit;
105: an air inlet; 106: a concentrated water outlet;
107: a discharge pipe; 108: a cleaning agent storage tank;
109: temperature, humidity, pressure sensors; 110: cleaning the dosing pump;
111: a first electric control valve; 112: cleaning the spray pipe;
113: and a second electric control valve.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to provide a thorough understanding of the present invention, detailed steps will be set forth in the following description in order to illustrate the packed evaporation device as set forth in the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The filler type evaporation device of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a packed evaporation device according to an embodiment of the present invention includes an evaporation chamber 101, where the evaporation chamber 101 includes at least two packing units 104 stacked one on another, and each packing unit 104 is filled with a packing; an air inlet 105 disposed below the at least two packing units 104, air entering the evaporation chamber 101 through the air inlet 105; a liquid distributor 103 disposed above the at least two packing units 104, for distributing the heated liquid to be evaporated 102 to the packing units 104, the liquid to be evaporated and the air being in gas-liquid contact inside each of the packing units 104 to evaporate the liquid to be evaporated; an air outlet arranged at the top of the evaporation chamber 101, through which hot and humid air generated after the gas-liquid contact is discharged out of the evaporation chamber 101; and a concentrated water discharge port 106 arranged at the bottom of the evaporation chamber 101 and used for discharging concentrated water generated after the liquid to be evaporated evaporates.
The embodiment of the utility model provides a main aim at of filler formula evaporation plant provides the place for gas-liquid contact evaporation, two at least filler units 104 through range upon range of setting realize waiting the abundant mass transfer heat transfer of evaporation liquid and air, and mass transfer heat transfer efficiency is high, and energy utilization is high, has realized the high-efficient evaporation process of high salt waste water, has solved the low scheduling problem of energy and equipment space utilization in the evaporation process simultaneously.
Specifically, the liquid to be evaporated may be high-concentration salt-containing wastewater, i.e., wastewater with high salt content, high COD and high ammonia nitrogen. After the high-concentration salt-containing wastewater is heated to 60-95 ℃, the high-concentration salt-containing wastewater is fully and uniformly distributed into the evaporation chamber 101 through the liquid distributor 103. The housing of the evaporation chamber 101 may be made of non-metal materials, such as glass fiber reinforced plastic, modified plastic, etc. Due to the low evaporation temperature, low-temperature waste heat (such as waste hot water, waste steam and the like) or solar energy can be used for heating the liquid to be evaporated.
The evaporation chamber 101 comprises at least two filler units 104 arranged in a stack, each filler unit 104 being filled with a filler. The evaporation chamber 101 may be provided in the form of a circular tower to save floor space. The filler is an inert solid material filled in the evaporation chamber 101, and has the function of increasing the gas-liquid contact surface and enabling the inert solid material and the gas-liquid contact surface to be intensively mixed with each other. The packing can adopt non-metal packing, such as non-metal regular packing such as plastic orifice plate corrugated packing and the like, thereby reducing the cost; other non-regular packing may also be used. The packed evaporation apparatus shown in fig. 1 only shows three packing units 104 arranged in a stacked manner, but the number of the packing units 104 may be two or more, and may be specifically arranged according to actual needs. The arrangement of a plurality of packing elements 104 ensures that the liquid to be evaporated is in sufficient contact with air and has a mass and heat transfer effect.
An air inlet 105 is provided below the bottommost packing unit 104, and air enters the evaporation chamber 101 through the air inlet 105. Above the topmost packing unit 104, a liquid distributor 103 is arranged for distributing the heated liquid to be evaporated to said packing unit 104. Liquid to be evaporated and air are in gas-liquid contact in each packing unit 104, wherein the air is used as carrier gas, the air and the hot liquid to be evaporated are subjected to sufficient gas-liquid mass transfer and heat transfer in the packing units 104, dry air is heated and humidified to form damp and hot air, the damp and hot air carrying a large amount of liquid to be evaporated by heating is discharged out of the evaporation chamber 101 through an air outlet arranged at the top of the evaporation chamber 101, the damp and hot air discharged from the top of the evaporator is sent to a cooling device through a discharge pipe 107 to be condensed, and the condensed water is discharged or recycled up to the standard so as to realize the evaporation process of the liquid to be evaporated.
The bottom of the evaporation chamber 101 is provided with a concentrated water discharge port 106, and concentrated water generated after evaporation of the evaporated liquid is collected at the bottom of the evaporation chamber 101 and then discharged out of the evaporation chamber 101 through the concentrated water discharge port 106. In addition, if the concentration of the concentrated water at the bottom of the evaporation chamber 101 does not reach the concentration requirement, the supernatant is directly conveyed by a water pump to flow back to the evaporation chamber 101 for continuous evaporation.
In one embodiment, the packed evaporation device further comprises a cleaning shower 112 disposed above each packing unit 104 for spraying a cleaning agent to clean the packing below each cleaning shower 112. The cleaning agent is not limited to water, acid, alkali, scale remover and the like, and can be used for cleaning the liquid or reagent of the polluted filler, so as to realize the cleaning recovery of the polluted and blocked filler.
Fig. 2 is a radial sectional view of the cleaning spray pipe 112, and the cleaning agent enters the disk-shaped cleaning spray pipe 112 located in the center of the evaporation chamber 101 through the feeding pipe on one side, and the uniform spraying of the cleaning agent above the filler is realized through the uniform distribution of holes on the cleaning spray pipe 112.
Wherein the cleaning agent sprayed by the cleaning shower 112 may be provided by the cleaning agent storage tank 108. The cleaning agent storage tank 108 is connected with a cleaning dosing pump 110, and a first electric control valve 111 is arranged between the cleaning dosing pump 110 and each cleaning spray pipe 112. The cleaning agent storage tank 108 may be provided with a stirring device to prevent the cleaning agent from depositing; the cleaning dosing pump 110 may be a variable frequency pump. The cleaning agent in the cleaning agent storage tank 108 is sent to a cleaning spray pipe 112 arranged above each filling unit 104 through a cleaning dosing pump 110 and a first electric regulating valve 111 to be sprayed into the filling, and the filling of each layer is cleaned simultaneously or independently by controlling the opening and closing of the first electric regulating valve.
In one embodiment, a temperature, humidity, pressure sensor 109 is disposed above each packing unit 104 for measuring the temperature, humidity, and pressure of each packing unit 104 in real time. The temperature, humidity and pressure sensors 109 are in communication connection with a control device, and the control device comprises a remote central control system which is used for realizing online processing and analysis of temperature, humidity and pressure data. Simultaneously, wash dosing pump 110 with first electrical control valve 111 also with controlling means communication connection, in the actual operation process, controlling means is through the implementation control to temperature, humidity and pressure parameter, feed back to first electrical control valve 111 and wash dosing pump 110 through autonomous system, realize the switch or certain aperture of first electrical control valve 111 and wash dosing pump 110 according to distal end transmission signal, thereby realize the accurate orientation and the automatic online cleaning to the filler, can practice thrift the washing medicament, reduce the downtime maintenance time, guarantee the long-term steady operation of evaporation plant.
In one embodiment, the cleaning agent storage tank 108 is connected with the bottom of the evaporation chamber 101 through a second electric control valve 113 to circulate the cleaning agent at the bottom of the evaporation chamber 101 to the cleaning agent storage tank 108, thereby saving the cleaning agent.
Based on the above description, the embodiment of the present invention provides a filler type evaporation apparatus, which has at least the following advantages:
1. the evaporation device provided by the embodiment of the utility model provides a large amount of contact areas are provided for air and hot liquid to be evaporated by arranging the multilayer filler, so that the air and the hot liquid to be evaporated can be sufficiently transferred in mass and heat, the hot water can be gasified, and the liquid can be evaporated and taken out of the evaporator in a saturated wet air manner, thereby achieving the purpose of evaporation and desalination, improving the efficiency of mass and heat transfer, and maximizing the utilization rate of energy and equipment space;
2. in the evaporation process, temperature, humidity and pressure parameters can be monitored in real time through a sensor on each layer of filler, accurate orientation and automatic online cleaning of the filler are realized, cleaning agents can be saved, the shutdown maintenance time is reduced, and the long-term stable operation of the evaporation device is ensured;
3. because the evaporation temperature is low, the evaporation device provided by the utility model can adopt low-temperature waste heat or solar energy as a heat source to heat the liquid to be evaporated, and the evaporation chamber and the filler can both adopt non-metallic materials, so the equipment operation cost and the investment cost are low;
4. the utility model discloses a filler formula evaporation plant is including a plurality of filler units of range upon range of setting, and area is little.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A packed evaporation device, comprising:
the evaporation chamber comprises at least two filler units which are arranged in a stacked mode, and each filler unit is filled with filler;
an air inlet disposed below the at least two packing units, through which air enters the evaporation chamber;
the liquid distributor is arranged above the at least two packing units and used for distributing the heated liquid to be evaporated to the packing units, and the liquid to be evaporated and the air are in gas-liquid contact in each packing unit so as to evaporate the liquid to be evaporated;
the air outlet is arranged at the top of the evaporation chamber, and the damp and hot air generated after the gas-liquid contact is discharged out of the evaporation chamber through the air outlet;
and the concentrated water discharge port is arranged at the bottom of the evaporation chamber and is used for discharging concentrated water generated after the liquid to be evaporated is evaporated.
2. The packed evaporation device of claim 1, further comprising a cleaning shower disposed above each of the packing units for spraying a cleaning agent to clean the packing.
3. The packed evaporation device of claim 2, further comprising a cleaning agent storage tank for supplying a cleaning agent to the cleaning spray pipes, wherein the cleaning agent storage tank is connected to a cleaning dosing pump, and a first electric control valve is disposed between the cleaning dosing pump and each cleaning spray pipe.
4. The packed vaporization device of claim 3, further comprising temperature, humidity, and pressure sensors disposed above each of the packing elements for measuring the temperature, humidity, and pressure of each of the packing elements.
5. The packed vaporization device of claim 4, wherein the temperature, humidity, pressure sensors, the purge dosing pump, and the first electrically actuated regulator valve are in communication with a control device.
6. The packed evaporation device of claim 3, wherein the bottom of the evaporation chamber is connected to the cleaning agent storage tank through a second electrically adjustable valve to circulate the cleaning agent in the bottom of the evaporation chamber to the cleaning agent storage tank.
7. The packed evaporation device of claim 1, wherein the material of the casing of the evaporation chamber and/or the packing comprises a non-metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022233662.7U CN214218249U (en) | 2020-10-09 | 2020-10-09 | Filler formula evaporation plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022233662.7U CN214218249U (en) | 2020-10-09 | 2020-10-09 | Filler formula evaporation plant |
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| Publication Number | Publication Date |
|---|---|
| CN214218249U true CN214218249U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022233662.7U Active CN214218249U (en) | 2020-10-09 | 2020-10-09 | Filler formula evaporation plant |
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| CN (1) | CN214218249U (en) |
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2020
- 2020-10-09 CN CN202022233662.7U patent/CN214218249U/en active Active
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