CN105056553A - Forced-circulation evaporator system and operation method thereof - Google Patents
Forced-circulation evaporator system and operation method thereof Download PDFInfo
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- CN105056553A CN105056553A CN201510559095.5A CN201510559095A CN105056553A CN 105056553 A CN105056553 A CN 105056553A CN 201510559095 A CN201510559095 A CN 201510559095A CN 105056553 A CN105056553 A CN 105056553A
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- evaporimeter
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- circulation evaporator
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Abstract
The invention discloses a forced-circulation evaporator system and an operation method thereof and belongs to the technical field of evaporators, and the forced-circulation evaporator system can be used for solving the defects that an existing evaporator is high in cost, wastes energy and pollutes the environment. The forced-circulation evaporator system comprises an evaporator, wherein the evaporator comprises a heating chamber at the lower part and a separation chamber at the upper part, a discharging hole is formed in the bottom end of the evaporator, a discharging pipe is connected at the discharging hole, a first material receiver is arranged at the tail end of the discharging pipe, a feeding hole and a liquid outlet are formed in the lower part of the evaporator, the feeding hole and the liquid outlet are respectively connected with a preheater through pipelines, the preheater is respectively connected with a feeding pipe and a water outlet pipe, the feeding pipe is connected with a raw material tank, the water outlet pipe is connected with a second material receiver, a vent hole is formed in the top end of the evaporator, the vent hole is connected with a separator through a pipeline, a discharging channel is formed in the bottom end of the separator, the tail end of the discharging channel is connected with a first delivery pump, the tail end of the first delivery pump is connected with the discharging pipe through a pipeline, and one side of the separator is connected with a steam compressor.
Description
Technical field
The invention belongs to vaporizer technology field, relate to a kind of forced-circulation evaporator system, particularly a kind of forced-circulation evaporator system and method for operating thereof.
Background technology
The nearly section time, China is shrouded by haze weather in most area, in the supervision of 80, Beijing Tianjin and Hebei Region city country, in air more than half, PM2.5 exceeds standard continuously, 129, Yangtze River Delta Area country supervision point has 1/3rd to occur, and in air, PM2.5 exceeds standard continuously, the harm of haze to people's health makes people more yearningly have the date of blue sky and white cloud, the chief culprit producing haze is the coal-fired pollution produced, the discharge of vehicle exhaust, plant gas ....In 7,000,000,000 tons of standard coals of the whole world in 2012 burning according to statistics, CHINESE COAL carbon consumption, more than 3,600,000,000 tons, accounts for 51% of total flow, the dust of generation, SO
2, CO
2huge pressure is caused to atmospheric environment.Therefore restructure the use of energy, reduce coal-fired consumption, adopt clean energy resource, greatly develop Energy Saving Industry imperative.
" MVR " evaporimeter is the abbreviation of English (MechanicalVaporRecompression), it is a kind of novel high-efficiency and energy-saving evaporation equipment, be mainly used in concentrating, evaporate, in distil process, as industries such as food deep processing, dairy produce industry, Industrial Wastewater Treatment and beverages.Traditional evaporimeter heating steam is generally provided by boiler, and coal combustion generally used by boiler, evaporates the steam that 1 ton of water about needs 1 ton, and one ton of atmospheric steam approximately consumes 77Kg standard coal, and discharges CO
2, SO
2in toxic gas and dust.Forced-circulation evaporator evaporates 1 ton of water, and only electricity is spent in power consumption 20 to 80, is equivalent to the steam of 50 to 200Kg, this equipment adopts low temperature and low-pressure steam steaming technique and clean energy resource----" electric energy ", be transferred to heat energy by mechanical compress acting, produce steam, the moisture in medium is separated." forced-circulation evaporator " is current the most energy-conservation, state-of-the-art evaporation technique in the world.
Domestic have tens tons of traditional evaporation equipments urgently to improve at present.If adopt advanced forced-circulation evaporation equipment, the standard coal of nearly 1,000,000,000 tons can be saved every year, carbon dioxide and the sulfur dioxide of several hundred million tons can be reduced discharging every year.According to expert statistics and the prediction in studies in China evaporimeter market, the output value of current traditional multi-effect evaporator and forced-circulation evaporator is 100:5.Expert expects, in the time of the coming five years, forced-circulation evaporator, by with the speed increment being about 20% every year, progressively replaces traditional evaporimeter.Forced-circulation evaporator is the upgraded product of alternative conventional evaporator.The exploitation of forced-circulation evaporator plays huge effect to environmental protection, energy-saving and emission-reduction and sustainable development with producing, and prospect is very wide, social benefit and economic interests remarkable.
Except haze, people are paying close attention to the adverse effect because CO2 emission makes climate warming bring to human economy and society, government has also put into effect the serial policy of energy-saving and emission-reduction successively, transformation fall behind power consumption exhaust apparatus, be guarantee current realization by way of one of.The application of forced-circulation evaporator can alleviate greatly because of the pollution of evaporation to air, and comply with country and greatly develop Energy Saving Industry, the target of Environment control energy-saving and emission-reduction and common people are to the serious hope of blue sky and white cloud.
Forced-circulation evaporator is that a kind of novel high-efficiency and energy-saving evaporation that develops of later 1990s is established in the world also known as " mechanical steam recompression evaporimeter ", being current state-of-the-art evaporation technique in the world, is the upgraded product of alternative conventional evaporator.This technology is applied in the various fields of some developed countries such as North America and Europe.
Forced-circulation evaporator started to enter Chinese market from North America and Europe from 2007, was mainly used in the industries such as food deep processing, dairy produce industry, Industrial Wastewater Treatment and beverage.Meanwhile, the few company of domestic also promising number develops domestic machinery forced-circulation evaporator product, and starts commercially to promote, but shared market volume divides seldom, still based on import.Therefore, Chinese evaporimeter city field structure is still based on the general layout of traditional multi-effect evaporator.Its chief reason is, forced-circulation evaporator is New Technologies new product, domestic manufacturing firm technology focuses on traditional evaporimeter, the vapour compression machine of new technology configuration is not understood, configuring also can only dependence on import, and the price of the vapour compression machine of import and mechanical recompression evaporimeter is very expensive.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of by adopting vapour compression machine to be connected with evaporimeter, the swabbing action of vapour compression machine, realize the steam of suction after vapour compression machine effect, heat content increases, temperature raises, steam after intensification and the raw material in evaporimeter carry out exchange heat, make intrasystem material temperature promote 5 DEG C ~ 30 DEG C, the heat taken away when supplementing evaporation, maintain intrasystem heat balance, keep raw material to continue evaporation.
Object of the present invention realizes by following technical proposal:
A kind of forced-circulation evaporator system, comprise evaporimeter, described evaporimeter comprises the heating clamber of bottom and the separation chamber on top, the bottom of described evaporimeter is provided with discharging opening, described discharging opening is connected with drainage conduit, the end of described drainage conduit is provided with the first material receiver, the bottom of described evaporimeter is provided with charging aperture and liquid outlet, described charging aperture is connected preheater with liquid outlet respectively by pipeline, described preheater is connected with feed pipe and outlet pipe respectively, described feed pipe connects head tank, described outlet pipe connects the second material receiver, the top of described evaporimeter is provided with steam vent, described steam vent connects separator by pipeline, the bottom of described separator is provided with discharging channel, the end of described discharging channel is connected with the first delivery pump, the end of described first delivery pump connects above-mentioned drainage conduit by pipeline, the side of described separator is connected with vapour compression machine, described vapour compression machine is provided with exhaust outlet, described exhaust outlet connects the heating clamber of evaporimeter, annular seal space is provided with near exhaust side in described vapour compression machine.
In above-mentioned a kind of forced-circulation evaporator system, described drainage conduit is provided with multiple control valve.Effectively can control discharge progress and the withdrawal rate of drainage conduit.
In above-mentioned a kind of forced-circulation evaporator system, described discharging channel is provided with control valve.Control valve effectively can regulate the mass flow in discharging channel.
In above-mentioned a kind of forced-circulation evaporator system, between described head tank and feed pipe, be provided with the second delivery pump.Second delivery pump can provide power, ensures that material can enter feed pipe from head tank smoothly.
In above-mentioned a kind of forced-circulation evaporator system, the sidewall of described evaporimeter is provided with pressure-regulating valve and material display instrument.The pressure in evaporimeter and material residue situation can be shown timely.
A method of operating for forced-circulation evaporator system, adopts a kind of forced-circulation evaporator system as above, specifically comprises the following steps:
Step one: head tank is filled raw material, makes raw material be entered the heating clamber of evaporimeter successively by the second delivery pump, preheater;
Step 2: open the pressure-regulating valve on the control valve on discharging channel, evaporimeter sidewall and material display instrument, then start vapour compression machine;
Step 3: under the swabbing action of vapour compression machine, under making the raw material in evaporimeter be in negative pressure state, remain on certain temperature of less than 100 DEG C and be in fluidized state, steam after boiling is constantly aspirated by vapour compression machine, the steam of suction is after vapour compression machine effect, heat content increases, temperature raises, steam after intensification and the raw material in evaporimeter carry out exchange heat, intrasystem material temperature is made to promote 5 DEG C ~ 30 DEG C, the heat taken away when supplementing evaporation, maintains the heat balance in evaporimeter, keeps the raw material in evaporimeter to continue evaporation;
Step 4: open the control valve in drainage conduit, by the stock discharge that processed in evaporimeter in the first material receiver.
In the method for operating of above-mentioned a kind of forced-circulation evaporator system, the temperature of described vapour compression machine can reach more than 20 DEG C, and evaporation capacity is 0.1T/hr ~ 10T/hr.
Compared with prior art, this forced-circulation evaporator system, under making the raw material in evaporimeter be in negative pressure state, remain on certain temperature of less than 100 DEG C and be in fluidized state, steam after boiling is constantly aspirated by vapour compression machine, the steam of suction is after vapour compression machine effect, heat content increases, temperature raises, steam after intensification and the raw material in evaporimeter carry out exchange heat, make intrasystem material temperature promote 5 DEG C ~ 30 DEG C, the heat taken away when supplementing evaporation, maintain the heat balance in evaporimeter, keep the raw material in evaporimeter to continue evaporation.Considerably reduce the consumption of evaporimeter to external live steam, improve the thermal efficiency, reduce energy consumption, the main operating expenses of this steam recompression formula energy-saving evaporator is only the electric energy driving compressor, the cost using external steam and boiler will have been lacked, because electric energy is clean energy resource, the discharge that therefore, forced-circulation evaporator really reaches " zero " pollutes.
Accompanying drawing explanation
Fig. 1 is a kind of forced-circulation evaporator system architecture schematic diagram.
In figure, 1, evaporimeter; 2, discharging opening; 3, the first material receiver; 4, charging aperture; 5, liquid outlet; 6, preheater; 7, feed pipe; 8, outlet pipe; 9, head tank; 10, steam vent; 11, separator; 12, discharging channel; 13, the first delivery pump; 14, vapour compression machine; 15, the second material receiver; 16, the second delivery pump.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, a kind of forced-circulation evaporator system, comprise evaporimeter 1, evaporimeter 1 comprises the heating clamber of bottom and the separation chamber on top, the bottom of evaporimeter 1 is provided with discharging opening 2, discharging opening 2 is connected with drainage conduit, the end of drainage conduit is provided with the first material receiver 3, the bottom of evaporimeter 1 is provided with charging aperture 4 and liquid outlet 5, charging aperture 4 is connected preheater 6 with liquid outlet 5 respectively by pipeline, preheater 6 is connected with respectively feed pipe 7 and outlet pipe 8, feed pipe 7 connects head tank 9, outlet pipe 8 connects the second material receiver 15, the top of evaporimeter 1 is provided with steam vent 10, steam vent 10 connects separator 11 by pipeline, the bottom of separator 11 is provided with discharging channel 12, the end of discharging channel 12 is connected with the first delivery pump 13, the end of the first delivery pump 13 connects drainage conduit by pipeline, the side of separator 11 is connected with vapour compression machine 14, vapour compression machine 14 is provided with exhaust outlet, exhaust outlet connects the heating clamber of evaporimeter 1, annular seal space is provided with near exhaust side in vapour compression machine 12.
Drainage conduit is provided with multiple control valve.Effectively can control discharge progress and the withdrawal rate of drainage conduit.
Discharging channel 12 is provided with control valve.Control valve effectively can regulate the mass flow in discharging channel 12.
The second delivery pump 16 is provided with between head tank 9 and feed pipe 7.Second delivery pump 16 can provide power, ensures that material can enter feed pipe 7 from head tank 9 smoothly.
The sidewall of evaporimeter 1 is provided with pressure-regulating valve and material display instrument.The pressure in evaporimeter 1 and material residue situation can be shown timely.
A method of operating for forced-circulation evaporator system, adopts a kind of forced-circulation evaporator system as above, specifically comprises the following steps:
Step one: head tank 9 is filled raw material, makes raw material be entered the heating clamber of evaporimeter 1 successively by the second delivery pump 16, preheater 6;
Step 2: open the pressure-regulating valve on the control valve on discharging channel 12, evaporimeter 1 sidewall and material display instrument, then starts vapour compression machine 13;
Step 3: under the swabbing action of vapour compression machine 13, under making the raw material in evaporimeter 1 be in negative pressure state, remain on certain temperature of less than 100 DEG C and be in fluidized state, steam after boiling is constantly aspirated by vapour compression machine 13, the steam of suction is after vapour compression machine 14 acts on, heat content increases, temperature raises, raw material in steam after intensification and evaporimeter 1 carries out exchange heat, intrasystem material temperature is made to promote 5 DEG C ~ 30 DEG C, the heat taken away when supplementing evaporation, maintain the heat balance in evaporimeter 1, the raw material in evaporimeter 1 is kept to continue evaporation,
Step 4: open the control valve in drainage conduit, by interior for evaporimeter 1 stock discharge processed in the first material receiver 3.
The temperature of vapour compression machine 13 can reach more than 20 DEG C, and evaporation capacity is 0.1T/hr ~ 10T/hr.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as evaporimeter 1, discharging opening 2, material receiver 3, charging aperture 4, liquid outlet 5, preheater 6, feed pipe 7, outlet pipe 8, head tank 9, steam vent 10, separator 11, discharging channel 12, delivery pump 13, vapour compression machine 14, second material receiver 15, second delivery pump 16 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. a forced-circulation evaporator system, comprise evaporimeter, described evaporimeter comprises the heating clamber of bottom and the separation chamber on top, it is characterized in that, the bottom of described evaporimeter is provided with discharging opening, described discharging opening is connected with drainage conduit, the end of described drainage conduit is provided with the first material receiver, the bottom of described evaporimeter is provided with charging aperture and liquid outlet, described charging aperture is connected preheater with liquid outlet respectively by pipeline, described preheater is connected with feed pipe and outlet pipe respectively, described feed pipe connects head tank, described outlet pipe connects the second material receiver, the top of described evaporimeter is provided with steam vent, described steam vent connects separator by pipeline, the bottom of described separator is provided with discharging channel, the end of described discharging channel is connected with the first delivery pump, the end of described first delivery pump connects above-mentioned drainage conduit by pipeline, the side of described separator is connected with vapour compression machine, described vapour compression machine is provided with exhaust outlet, described exhaust outlet connects the heating clamber of evaporimeter, annular seal space is provided with near exhaust side in described vapour compression machine.
2. a kind of forced-circulation evaporator system according to claim 1, it is characterized in that, described drainage conduit is provided with multiple control valve.
3. a kind of forced-circulation evaporator system according to claim 1, it is characterized in that, described discharging channel is provided with control valve.
4. a kind of forced-circulation evaporator system according to claim 1, is characterized in that, be provided with the second delivery pump between described head tank and feed pipe.
5. a kind of forced-circulation evaporator system according to claim 1, is characterized in that, the sidewall of described evaporimeter is provided with pressure-regulating valve and material display instrument.
6. a method of operating for forced-circulation evaporator system, adopts a kind of forced-circulation evaporator system as claimed in claim 1, it is characterized in that, specifically comprise the following steps:
Step one: head tank is filled raw material, makes raw material be entered the heating clamber of evaporimeter successively by the second delivery pump, preheater;
Step 2: open the pressure-regulating valve on the control valve on discharging channel, evaporimeter sidewall and material display instrument, then start vapour compression machine;
Step 3: under the swabbing action of vapour compression machine, under making the raw material in evaporimeter be in negative pressure state, remain on certain temperature of less than 100 DEG C and be in fluidized state, steam after boiling is constantly aspirated by vapour compression machine, the steam of suction is after vapour compression machine effect, heat content increases, temperature raises, steam after intensification and the raw material in evaporimeter carry out exchange heat, intrasystem material temperature is made to promote 5 DEG C ~ 30 DEG C, the heat taken away when supplementing evaporation, maintains the heat balance in evaporimeter, keeps the raw material in evaporimeter to continue evaporation;
Step 4: open the control valve in drainage conduit, by the stock discharge that processed in evaporimeter in the first material receiver.
7. the method for operating of a kind of forced-circulation evaporator system as claimed in claim 6, the temperature of described vapour compression machine can reach more than 20 DEG C, and evaporation capacity is 0.1T/hr ~ 10T/hr.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107126717A (en) * | 2017-05-19 | 2017-09-05 | 航天晨光股份有限公司 | A kind of MVR vapo(u)rization systems and its startup pre-heating mean |
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