CN204815763U - Evaporation crystallization integrated device - Google Patents
Evaporation crystallization integrated device Download PDFInfo
- Publication number
- CN204815763U CN204815763U CN201520413729.1U CN201520413729U CN204815763U CN 204815763 U CN204815763 U CN 204815763U CN 201520413729 U CN201520413729 U CN 201520413729U CN 204815763 U CN204815763 U CN 204815763U
- Authority
- CN
- China
- Prior art keywords
- crystallization
- pond
- feed liquid
- tank body
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002425 crystallisation Methods 0.000 title claims abstract description 77
- 230000005712 crystallization Effects 0.000 title claims abstract description 77
- 238000001704 evaporation Methods 0.000 title abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims abstract description 18
- 229920002456 HOTAIR Polymers 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000576 supplementary Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Abstract
The utility model relates to an evaporation crystallization integrated device, which comprises a tank body, the upper portion of jar body is equipped with the feed inlet, and tank body cavity's upper portion is equipped with the feed liquid sprayer, and near feed liquid sprayer is equipped with hot -blast spout, and hot -blast spout passes through the hot -blast main, the air heater is connected with the hot -blast furnace, and tank body cavity's top is equipped with steam collection chamber, steam is collected and to be equipped with vacuum negative pressure steam outlet on the lateral cavity wall in chamber, steam collect the chamber with be equipped with gas liquid separator between the tank body cavity, the bottom of jar body is equipped with pond at the bottom of the crystallization, is equipped with the cooling water circulation coil pipe at the bottom of the crystallization in the pond, and the water inlet of cooling water circulation coil pipe leads to pipe, the circulating pump is connected with the water storage tank, and the logical pipe of delivery port of cooling water circulation coil pipe is connected with the water storage tank, is equipped with cold heat exchanger in the water storage tank, and the bottom in pond is equipped with the crystallisate discharge opening at the bottom of the crystallization, be equipped with feed liquid backward flow mouthful at the bottom of the crystallization on the lateral wall in pond. The device can the utilization ratio with production efficiency is higher, the evaporation container is difficult to the production scale deposit.
Description
Technical field
The utility model relates to crystallizer technical field, is specifically related to a kind of evaporative crystallization integrated apparatus.
Background technology
Heat utilization rate low for the evaporative crystallization ubiquity of solution in the prior art, and water consumption is large, and container for evaporation easily produces fouling and affects the normal operation of equipment.How to improve the utilization rate of heat energy, the generation of fouling in the device that avoids evaporating, reduce the impact that fouling runs evaporimeter, and how effectively to reduce operating cost, improve on-road efficiency, technical problem urgently to be resolved hurrily especially.
Utility model content
The purpose of this utility model is to overcome defect of the prior art, designs a kind of heat utilization rate and production efficiency is higher, container for evaporation is not easy to produce the evaporative crystallization integrated apparatus of fouling.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of evaporative crystallization integrated apparatus, it is characterized in that, described device comprises tank body, the top of described tank body is provided with charging aperture, the top of described tank inner chamber is provided with feed liquid injector, hot air spout is provided with near feed liquid injector, hot air spout passes through warm-air pipe, air-heater is connected with hot-blast stove, the top of described tank inner chamber is provided with vapor collection chamber, chamber, the side wall in described vapor collection chamber is provided with negative pressure of vacuum steam (vapor) outlet, vapour liquid separator is provided with between described vapor collection chamber and described tank inner chamber, the bottom of described tank body is provided with pond at the bottom of crystallization, cooling water circulation coil pipe is provided with in pond at the bottom of crystallization, the water inlet of cooling water circulation coil pipe passes through water pipe, circulating pump is connected with water tank, the delivery port of cooling water circulation coil pipe is connected with water tank by water pipe, cool-heat-exchanger is provided with in water tank, at the bottom of described crystallization, the bottom in pond is provided with crystal discharge port, at the bottom of described crystallization, the sidewall in pond is provided with feed liquid refluxing opening.
Wherein preferred technical scheme is, described vapour liquid separator is the foam removal net removed by the foam in steam.
Preferred technical scheme also has, and described feed liquid injector comprises the shower nozzle being distributed on tank body top by several.
Preferred technical scheme also has, and at the bottom of described crystallization, pond is back taper, and described crystal discharge port is arranged on the bottom in pond at the bottom of described back taper crystallization.
Advantage of the present utility model and beneficial effect are: described evaporative crystallization integrated apparatus is owing to have employed technique scheme, evaporative crystallization tank, comprise tank body, the top of described tank body is provided with charging aperture, the top of described tank inner chamber is provided with feed liquid injector, the top of described tank inner chamber is provided with vapor collection chamber, the chamber wall in described vapor collection chamber is provided with negative pressure of vacuum steam (vapor) outlet, vapor-liquid separating device is provided with between described vapor collection chamber and described tank inner chamber, the bottom of described tank body is provided with pond at the bottom of crystallization, at the bottom of described crystallization, the bottom in pond is provided with crystal discharge port, at the bottom of described crystallization, the sidewall in pond is provided with feed liquid refluxing opening, feed liquid to be ejected in evaporating space and to make it into shape of drenching with rain by feed liquid injection apparatus, increases the evaporation surface of feed liquid, accelerates the evaporation of feed liquid, improve heat utilization rate, and container for evaporation is not easy to produce fouling, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model evaporative crystallization integrated apparatus embodiment 1;
Fig. 2 is the structural representation of the utility model evaporative crystallization integrated apparatus embodiment 2;
Fig. 3 is the using method schematic diagram of the utility model evaporative crystallization integrated apparatus embodiment 1;
Fig. 4 is the using method schematic diagram of the utility model evaporative crystallization integrated apparatus embodiment 2; .
In figure: 1, tank body; 2, air-heater; 3, hot-blast stove; 4, pond at the bottom of crystallization; 5, crystal discharge port; 6, charging aperture; 7, negative pressure of vacuum steam (vapor) outlet; 8, feed liquid refluxing opening; 9, hot air spout; 10, discharging pump; The brilliant liquid/gas separator of 11-; 12, vapor collection chamber; 13, injector; 14, vapour liquid separator; 15, the first feed pump; 16, the first heat exchanger; 17, pressure regulator valve; 18, mixing pit; 19, the second feed pump; 20, the second heat exchanger; 21, vavuum pump; 22, heater; 23, cooling water circulation coil pipe; 24, circulating pump; 25, water tank.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
As shown in Figure 1: the utility model is a kind of evaporative crystallization integrated apparatus, described device comprises tank body 1, the top of described tank body 1 is provided with charging aperture 6, the top of described tank body 1 inner chamber is provided with feed liquid injector 13, hot air spout 9 is provided with near feed liquid injector 13, hot air spout 9 passes through warm-air pipe, air-heater 2 is connected with hot-blast stove 3, the top of described tank body 1 inner chamber is provided with vapor collection chamber 12, chamber, the side wall in described vapor collection chamber 12 is provided with negative pressure of vacuum steam (vapor) outlet 7, vapour liquid separator 14 is provided with between described vapor collection chamber 12 and described tank body 1 inner chamber, the bottom of described tank body 1 is provided with pond 4 at the bottom of crystallization, cooling water circulation coil pipe 23 is provided with in pond 4 at the bottom of crystallization, the water inlet of cooling water circulation coil pipe 23 passes through water pipe, circulating pump 24 is connected with water tank 25, the delivery port of cooling water circulation coil pipe 23 is connected with water tank 25 by water pipe, cool-heat-exchanger is provided with in water tank 25, at the bottom of described crystallization, the bottom in pond 4 is provided with crystal discharge port 5, at the bottom of described crystallization, the sidewall in pond 4 is provided with feed liquid refluxing opening 8.
The preferred embodiment of the utility model is, described vapour liquid separator 14 is the foam removal net removed by the foam in steam.
The preferred embodiment of the utility model also has, and described feed liquid injector 13 comprises the shower nozzle being distributed on tank body 1 top by several.
The preferred embodiment of the utility model also has, and at the bottom of described crystallization, pond 4 is in back taper, and described crystal discharge port 5 is arranged on the bottom in pond 4 at the bottom of described back taper crystallization.
The using method of the present embodiment as shown in Figure 3, first open the first feed pump 15 elementary feed liquid to be sent in the first heat exchanger 16, then flow in mixing pit 18, again through expecting that the second liquid pump 19 is sent in the second heat exchanger 20, then flow in the injector 13 of evaporative crystallization tank top through charging aperture 6, sprayed to evaporating space in tank by injector 13, simultaneously the hot blast after heating in hot-blast stove 3 to be blowed to the spout in injector 13 by the hot air spout 9 at top by warm-air pipe, air-heater 2, make feed liquid form shape of drenching with rain, and make it to be covered with evaporating space as far as possible.The bottom of evaporative crystallization tank has been fallen by the feed liquid after heating, so the bottom of evaporative crystallization tank is slowly filled, and then feed liquid is overflowed by the feed liquid refluxing opening 8 of evaporative crystallization tank and is flow into the elementary feed liquid sent here with the first feed pump 15 in mixing pit 18 and mixes mutually, and be again sent in the second heat exchanger 20 by material second liquid pump 19, then flow in the injector 13 of evaporative crystallization tank top through charging aperture 6 again, sprayed to evaporating space in tank by injector 13, feed liquid is formed to drench with rain shape, and make it the evaporating space in cloth canful as far as possible.So go round and begin again, the temperature of feed liquid also raises gradually, and reaches operating temperature.Then open vavuum pump 21 and be pumped into negative pressure state by evaporative crystallization tank, the boiling point under making the feed temperature under this negative pressure state exceed this pressure, so the one-tenth be ejected in evaporative crystallization tank is drenched with rain, the boiling vaporization in the process fallen of the feed liquid of shape produces steam.The steam produced is pressed in the second heat exchanger 20 by vavuum pump 21 through negative pressure of vacuum steam (vapor) outlet 7 sucking-off again, the second heat exchanger 20 steam side pressure is made to be stabilized in more than an atmospheric pressure or an atmospheric pressure by regulating pressure regulator valve 17, if in an atmospheric situation, as long as now the temperature of the second heat exchanger 20 feed liquid side does not reach 100 DEG C, so the generation of heat exchange will be had between the steam side of the second heat exchanger 20 and feed liquid side, now steam will be condensed, and feed liquid will be heated.The primary solvent also containing higher heat is become after steam is liquefied, in order to the least possible minimizing thermal loss, again the primary solvent be just liquefied is sent in the first heat exchanger 16, carry out heat exchange with the elementary feed liquid flowed through herein, finally become and flow into ultimate solvent cell containing ultimate solvent more low in calories.
The feed liquid falling into evaporative crystallization pot bottom is concentrated because having evaporated portion of water, go round and begin again like this and will reach hypersaturated state in the feed liquid of evaporative crystallization pot bottom and produce crystallization and be deposited to bottom pond 4 at the bottom of crystallization, crystal is sent into brilliant liquid/gas separator 11 through crystal discharge port 5 by discharging pump 10 and is carried out brilliant liquid separation, in order to accelerate the speed of crystallization, make crystallization rate even, crystallization effect is good, is therefore provided with cooling water circulation coil pipe 23 in pond 4 at the bottom of crystallization.
The present embodiment is used for desalinization, has more excellent effect.Not only can isolate a large amount of crystal salt, the most important thing is to obtain a large amount of condensed waters.
Embodiment 2
As shown in Figure 2, the utility model is a kind of evaporative crystallization integrated apparatus, comprise tank body 1, the top of described tank body 1 is provided with charging aperture 6, the top of described tank body 1 inner chamber is provided with injector 13, the top of described tank body 1 inner chamber is provided with vapor collection chamber 12, the chamber wall in described vapor collection chamber 12 is provided with negative pressure of vacuum steam (vapor) outlet 7, vapour liquid separator 14 is provided with between described vapor collection chamber 12 and described tank body 1 inner chamber, the bottom of described tank body 1 is provided with pond 4 at the bottom of crystallization, cooling water circulation coil pipe 23 is provided with in pond 4 at the bottom of crystallization, the water inlet of cooling water circulation coil pipe 23 passes through water pipe, circulating pump 24 is connected with water tank 25, the delivery port of cooling water circulation coil pipe 23 is connected with water tank 25 by water pipe, cool-heat-exchanger is provided with in water tank 25, at the bottom of described crystallization, the bottom in pond 4 is provided with crystal discharge port 5, at the bottom of described crystallization, the sidewall in pond 4 is provided with feed liquid refluxing opening 8.
At the bottom of described crystallization, pond 4 is in back taper, and described crystal discharge port 5 is arranged on the bottom in pond 4 at the bottom of described back taper crystallization.
The using method of the present embodiment as shown in Figure 4, first open the first feed pump 15 elementary feed liquid to be sent in the first heat exchanger 16, then flow in mixing pit 18, again through expecting that the second liquid pump 19 is sent in the second heat exchanger 20, then by after heater 22 supplementary heating, flow in the injector 13 of evaporative crystallization tank top through charging aperture 6, sprayed to evaporating space in tank by injector 13, feed liquid is made to form shape of drenching with rain, and make it to be covered with evaporating space as far as possible, so the bottom of evaporative crystallization tank is filled with, and then feed liquid is overflowed by the feed liquid refluxing opening 8 of evaporative crystallization tank and is flow into the elementary feed liquid sent here with the first feed pump 15 in mixing pit 18 and mixes mutually, and be again sent in the second heat exchanger 20 by material second liquid pump 19, then again by after heater 22 supplementary heating, flow in the injector 13 of evaporative crystallization tank top through charging aperture 6, sprayed to evaporating space in tank by injector 13, feed liquid is made to form shape of drenching with rain.And the evaporating space made it in as far as possible cloth canful.So go round and begin again, the temperature of feed liquid also raises gradually, and reaches operating temperature.Then open vavuum pump 21 and be pumped into negative pressure state by evaporative crystallization tank, the boiling point under making the feed temperature under this negative pressure state exceed this pressure, so the one-tenth be ejected in evaporative crystallization tank is drenched with rain, the boiling vaporization in the process fallen of the feed liquid of shape produces steam.The steam produced is pressed in the second heat exchanger 20 by vavuum pump 21 through negative pressure of vacuum steam (vapor) outlet 7 sucking-off again, the second heat exchanger 20 steam side pressure is made to be stabilized in more than an atmospheric pressure or an atmospheric pressure by regulating pressure regulator valve 17, if in an atmospheric situation, as long as now the temperature of the second heat exchanger 20 feed liquid side does not reach 100 DEG C, so the generation of heat exchange will be had between the steam side of the second heat exchanger 20 and feed liquid side, now steam will be condensed, and feed liquid will be heated.The primary solvent also containing higher heat is become after steam is liquefied, in order to the least possible minimizing thermal loss, again the primary solvent be just liquefied is sent in heat exchanger 16, carry out heat exchange with the elementary feed liquid flowed through herein, finally become and flow into ultimate solvent cell containing ultimate solvent more low in calories.
The feed liquid falling into evaporative crystallization pot bottom is concentrated because having evaporated portion of water, go round and begin again like this and will reach hypersaturated state in the feed liquid of evaporative crystallization pot bottom and produce crystallization and be deposited to bottom pond 4 at the bottom of crystallization, crystal is sent into brilliant liquid/gas separator 11 through crystal discharge port 5 by discharging pump 10 and is carried out brilliant liquid separation, is therefore provided with cooling water circulation coil pipe 23 in pond 4 at the bottom of crystallization.
The present embodiment may be used for desalinization equally, also has excellent effect.Not only can isolate a large amount of crystal salt, the most important thing is to obtain a large amount of condensed waters.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. an evaporative crystallization integrated apparatus, it is characterized in that, described device comprises tank body, the top of described tank body is provided with charging aperture, the top of described tank inner chamber is provided with feed liquid injector, hot air spout is provided with near feed liquid injector, hot air spout passes through warm-air pipe, air-heater is connected with hot-blast stove, the top of described tank inner chamber is provided with vapor collection chamber, chamber, the side wall in described vapor collection chamber is provided with negative pressure of vacuum steam (vapor) outlet, vapour liquid separator is provided with between described vapor collection chamber and described tank inner chamber, the bottom of described tank body is provided with pond at the bottom of crystallization, cooling water circulation coil pipe is provided with in pond at the bottom of crystallization, the water inlet of cooling water circulation coil pipe passes through water pipe, circulating pump is connected with water tank, the delivery port of cooling water circulation coil pipe is connected with water tank by water pipe, cool-heat-exchanger is provided with in water tank, at the bottom of described crystallization, the bottom in pond is provided with crystal discharge port, at the bottom of described crystallization, the sidewall in pond is provided with feed liquid refluxing opening.
2. evaporative crystallization integrated apparatus as claimed in claim 1, is characterized in that, described vapour liquid separator is the foam removal net removed by the foam in steam.
3. evaporative crystallization integrated apparatus as claimed in claim 1, it is characterized in that, described feed liquid injector comprises the shower nozzle being distributed on tank body top by several.
4. evaporative crystallization integrated apparatus as claimed in claim 1, it is characterized in that, at the bottom of described crystallization, pond is back taper, and described crystal discharge port is arranged on the bottom in pond at the bottom of described back taper crystallization.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520413729.1U CN204815763U (en) | 2015-06-16 | 2015-06-16 | Evaporation crystallization integrated device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520413729.1U CN204815763U (en) | 2015-06-16 | 2015-06-16 | Evaporation crystallization integrated device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN204815763U true CN204815763U (en) | 2015-12-02 |
Family
ID=54673407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201520413729.1U Expired - Fee Related CN204815763U (en) | 2015-06-16 | 2015-06-16 | Evaporation crystallization integrated device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN204815763U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105749577A (en) * | 2016-05-11 | 2016-07-13 | 南宁市夏阳化工科技有限责任公司 | Coil crystallizing equipment for producing vehicle urea |
CN105771305A (en) * | 2016-05-11 | 2016-07-20 | 南宁市夏阳化工科技有限责任公司 | Buffer crystallization equipment for producing adblue |
CN105854338A (en) * | 2016-05-11 | 2016-08-17 | 南宁市夏阳化工科技有限责任公司 | Tube-nest crystallization apparatus for producing vehicular aqueous urea solution |
CN113772884A (en) * | 2021-09-03 | 2021-12-10 | 西安交通大学 | Coking wastewater treatment system and method |
-
2015
- 2015-06-16 CN CN201520413729.1U patent/CN204815763U/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105749577A (en) * | 2016-05-11 | 2016-07-13 | 南宁市夏阳化工科技有限责任公司 | Coil crystallizing equipment for producing vehicle urea |
CN105771305A (en) * | 2016-05-11 | 2016-07-20 | 南宁市夏阳化工科技有限责任公司 | Buffer crystallization equipment for producing adblue |
CN105854338A (en) * | 2016-05-11 | 2016-08-17 | 南宁市夏阳化工科技有限责任公司 | Tube-nest crystallization apparatus for producing vehicular aqueous urea solution |
CN105854338B (en) * | 2016-05-11 | 2018-03-13 | 南宁市夏阳化工科技有限责任公司 | Produce the tubulation crystallizer of urea for vehicle |
CN105749577B (en) * | 2016-05-11 | 2018-08-07 | 南宁市夏阳化工科技有限责任公司 | Produce the coil pipe crystallizer of urea for vehicle |
CN113772884A (en) * | 2021-09-03 | 2021-12-10 | 西安交通大学 | Coking wastewater treatment system and method |
CN113772884B (en) * | 2021-09-03 | 2022-12-13 | 西安交通大学 | Coking wastewater treatment system and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204815763U (en) | Evaporation crystallization integrated device | |
CN104759108B (en) | Three grades of continuous falling liquid film circulating and evaporating concentration systems with function of mechanical steam recompression | |
CN107008026B (en) | Nickel sulfate evaporative crystallization technique | |
CN204522328U (en) | Three grades with function of mechanical steam recompression continuous falling liquid film circulating and evaporating concentration systems | |
CN102730779A (en) | Solar zero-liquid-discharge sea water desalting plant and method | |
CN102010020A (en) | Solar energy sea water desalinization heat collecting system | |
CN105417606A (en) | Multi-effect distillation and multi-stage flash evaporation solar sea water desalination method | |
CN104857734A (en) | Microwave-evaporation device, application and application method thereof | |
CN206631225U (en) | A kind of film-rising evaporator | |
CN201537402U (en) | High-efficient evaporation crystallizer | |
CN201517039U (en) | Heat pump type sea water desalination device | |
CN204767453U (en) | Microwave - evaporation plant | |
CN101564602A (en) | High-efficiency evaporating and crystallizing tower | |
CN205235415U (en) | Thermal cycle mechanical compression evaporation plant | |
CN204017401U (en) | A kind of ultrasonic extraction and ultrasonic evaporation and concentration integration apparatus | |
CN208803048U (en) | A kind of foreign wine production line | |
CN206184013U (en) | System for utilize air heat pump low temperature evaporative concentration alcohol waste liquid | |
CN207605382U (en) | A kind of multiple effect counter current vapo(u)rization system | |
CN206642386U (en) | A kind of multiple-effect falling film with high stability is evaporated in vacuo condenser apparatus | |
CN104944664A (en) | Countercurrent multi-effect evaporation coupling immersion pipe flashing composite distillation seawater desalination device and method | |
CN201399260Y (en) | High-efficiency evaporation crystallizing tower | |
CN205461107U (en) | Reactive crystallization jar for crystallization | |
CN205241436U (en) | Multistage flash distillation solar seawater desalination device of multiple -effect distillation | |
CN205084432U (en) | Double -effect concentrator | |
CN205164164U (en) | Tape unit tool vapor recompression's tertiary concentrated system of falling liquid film circulation evaporating in succession |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160616 |
|
CF01 | Termination of patent right due to non-payment of annual fee |