A kind of low temperature high-efficient energy-saving evaporation crystallization equipment
Technical field
The utility model relates to a kind of evaporation crystallization equipment, is specifically related to a kind of low temperature high-efficient energy-saving evaporation crystallization equipment that can be applicable to environmental protection, chemical field.
Background technology
Existing evaporation equipment is all for specific production technology and material design, function is comparatively single, after being evaporated the appointment material concentration, enter again another crystallizer and carry out Crystallization Separation, equipment is larger, structure is complicated, inconvenient operation, and also the energy recycling rate of waterused in evaporation heating process is not high, equipment does not have versatility, thereby makes troubles to production.Used recycle compressor that indirect steam is compressed among the patent 201220089427.X, and then to former water heating.Compare with traditional crystallizer, energy consumption has obtained preferably saving, but not enough is, corresponding supporting equipment also increases thereupon, makes the whole system complicated, and floor space is also larger, has increased operating cost.How improving the utilization rate of heat energy, reduce operating cost, and make device simple, integrated, and then improve equipment operating efficiency, is present problem demanding prompt solution.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of compact conformation floor space is little, the low temperature high-efficient energy-saving evaporation crystallization equipment of energy recycling rate of waterused height and effect stability.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of low temperature high-efficient energy-saving evaporation crystallization equipment, comprise vaporization chamber and condensation chamber, described vaporization chamber comprises the vaporization chamber shell and is arranged at water distribution layer, evaporation layer and the strong brine tank of arranging from top to bottom in the vaporization chamber shell, described water distribution layer comprises the water distribution pipeline, described water distributor road direction is arranged with water-distribution nozzle, and described evaporation layer comprises gripper shoe and the filler that is arranged on the gripper shoe; Described condensation chamber is fixed in the vaporization chamber shell, and described condensation chamber comprises the condensation chamber shell and is arranged at the interior fan of arranging from top to bottom of condensation chamber shell, interior heat exchanger and condensed water tank; The water side of described interior heat exchanger is connected with water distribution pipeline and raw water tubes respectively with water inlet end, and described condensed water tank is connected with the external heat exchanger of being located at the vaporization chamber outside by condensate draining pipe.
Preferably, described condensation chamber is fixed in the vaporization chamber shell by gripper shoe.
Preferably, described water distribution pipeline is provided with heater and flow control valve, and the nozzle diameter of described water-distribution nozzle is 0.5~3mm.
Preferably, the lower sides of described condensation chamber shell is provided with eliminator plate, enters vaporization chamber to stop condensed water, and described eliminator plate links to each other with the condensed water tank.
Preferably, described fan is arranged at the top of condensation chamber, and its wind speed is 1~30m/s.
Preferably, described interior heat exchanger is fin heat exchanger, and described external heat exchanger is double-tube heat exchanger or plate type heat exchanger.
Preferably, described filler is two-way ripple filler.
Preferably, described strong brine tank is connected with raw water tubes by the strong brine circulation pipe, and described strong brine circulation pipe is positioned at the external heat exchanger bottom, and described strong brine circulation pipe is provided with circulating pump.
Preferably, the outside of described evaporation crystallization equipment is provided with heat-insulation layer.
Preferably: the operating temperature of described evaporation crystallization equipment is 0~80 ℃, and operating pressure is-0.1~0.2MPa.
With respect to prior art, equipment of the present utility model, compact conformation, collection evaporates, crystallization is integrated, and floor space is little, and after reclaiming through twice energy, the energy recycling rate of waterused is high; The operating maximum temperature of equipment is 80 ℃ only, and energy consumption is low; And equipment of the present utility model can move by Automatic continuous, satisfy the technological requirement of continuous feed, continuous pulp discharge, vaporization chamber has formed best cooperating with forced circulation between the condensation chamber, and its internal structure is so that crystal obtains effectively separating fast with clear liquid, and efficient is high.Equipment of the present utility model adopts fan that power is provided, so that inner air carries out forced circulation, utilize airborne saturated vapor content difference under the different temperatures, and then realization evaporation and crystal process, can utilize the condensed water of relatively-high temperature to carry out preheating to former water by external heat exchanger, take full advantage of the energy that discharges after the high-temperature condensation water cooling, can be so that steam-condensation institute liberated heat heats for former water by interior heat exchanger.After process external heat exchanger and interior heat exchanger carry out twice heat exchange, effectively reclaim heat energy, effectively saved energy.Use equipment of the present utility model, not only reduced operating cost, and greatly reduced the production cost of enterprise, bring direct economic benefit to enterprise; Can realize recycling after the process device processes of the present utility model such as the strong brine in the industrial production, sewage, waste water, reduce the discharging of trade effluent, in protection of the environment, also save national water resource.
Description of drawings
Fig. 1 shows the structural representation of evaporation crystallization equipment described in the utility model;
Fig. 2 shows the water content of saturated moist air under the different temperatures;
Fig. 3 shows the saturated vapor pressure of steam under the different temperatures.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.
With reference to figure 1, evaporation crystallization equipment described in the utility model comprises vaporization chamber 1 and condensation chamber 2, described vaporization chamber 1 comprises the vaporization chamber shell and is arranged at water distribution layer, evaporation layer and the strong brine tank 23 of arranging from top to bottom in the vaporization chamber shell that described evaporation layer comprises gripper shoe 10 and the filler 11 that is arranged on the gripper shoe 10; Described filler 11 is two-way ripple filler high temperature resistant, corrosion resistance, and its material is the PVC plastics, and a pitch of fins is 30mm, and sheet is thick to be 0.35~0.5mm, in order to accelerate former evaporation of water, promotes the energy transmission between the hydration air.Described water distribution layer comprises water distribution pipeline 13, and described water distribution pipeline 13 is to being arranged with water-distribution nozzle 17, and the material of described water-distribution nozzle 17 is ABS plastic, can not stop up simultaneously at corrosion-resistant yet, the water droplet of spray can atomize, and nozzle diameter is 0.5~3mm, and every square metre of per second can be assigned to the 4L spray liquid.Also be provided with the control valve 14 of control uninterrupted on the described water distribution pipeline 13, and heater 12, described strong brine tank 23 is connected with raw water tubes 3 by the strong brine circulation pipe 22 of its sidewall.
Described condensation chamber 2 is fixed in the vaporization chamber shell by gripper shoe 10, and described condensation chamber 2 comprises the condensation chamber shell and is arranged at the interior fan 16 of arranging from top to bottom of condensation chamber shell, interior heat exchanger 18 and condensed water tank 8; Described interior heat exchanger 18 is fin heat exchanger, its water side and water inlet end are connected with water distribution pipeline 13 and raw water tubes 3 respectively, the lower sides of condensation chamber shell is provided with eliminator plate 9, enters vaporization chamber 1 to stop condensed water, and described eliminator plate links to each other with condensed water tank 8; Described condensed water tank 8 is connected with the external heat exchanger 7 of being located at the vaporization chamber outside by the condensate draining pipe 20 of its bottom, and described external heat exchanger 7 is double-tube heat exchanger or plate type heat exchanger.
The operation principle of evaporation crystallization equipment described in the utility model is: under different temperatures, the water content of saturated moist air is different, and as shown in Figure 2, its corresponding saturated vapor dividing potential drop as shown in Figure 3.By air is carried out heating and cooling, make it under the promotion of saturated vapor pressure, constantly carry a certain amount of steam, and then realize strong brine evaporation and crystallization.The condensed water of separating can be used as middle water and recycles, and crystal salt can be sold in market.In the utility model, air comes from the fan 16 at condensation chamber 2 tops at the power of vaporization chamber 1 and condensation chamber 2 circulations, and the wind speed of described fan 16 is 1~30m/s, and its effect is that inner air is carried out forced circulation.Hot blast 15 is carrying saturated vapor and is entering condensation chamber 2, makes its cooling through interior heat exchanger 18, and steam-condensation Cheng Shui enters condensed water tank 8, and the cold air after the cooling enters vaporization chamber 1 by eliminator plate 9 and carries out next evaporative crystallization circulation.
Adopt evaporation crystallization equipment described in the utility model, its operating procedure is as follows: the former water in the raw water tubes 3, under the effect of raw water pump 4, enter external heat exchanger 7, with enter interior heat exchanger 18 after the condensed water heat exchange, behind the latent heat that fully the absorption steam-condensation is emitted, enter be heated to design temperature in the heater 12 of being located on the water distribution pipeline 13 after, spray by water-distribution nozzle 17.After entering vaporization chamber 1 from the cold wind 19 of condensation chamber 2, contact at filler 11 with the hot water that water-distribution nozzle 17 sprays, steam is in filler 11 evaporations, steam after the evaporation enters condensation chamber 2 condensations under the drive of the hot blast 15 that the fan 16 of being located at condensation chamber 2 tops provides, behind the absorbing heat, carry a certain amount of saturated vapor and enter together condensation chamber 2 condensations, condensed liquid enters condensed water tank 8, and after external heat exchanger 7 and former water heat exchange, discharge through condensation-water drain 21.Unevaporated strong brine enters strong brine tank 23, through circulating pump 6 with carry out next evaporative crystallization cyclic process after former water mixes, the crystal salt that evaporative crystallization produces is discharged by the crystal salt outlet 5 of being located at strong brine tank 23 bottoms.
Embodiment 1
Utilize said apparatus to process brine waste.30 ℃ 10% sodium chloride solution is delivered in the external heat exchanger 7 through raw water pump 4, after carrying out heat exchange with external heat exchanger 7, solution temperature rises to 35 ℃, after sodium chloride solution after the intensification carries out carrying out heat exchange in the interior heat exchanger 18, the temperature that solution leaves interior heat exchanger 18 is 60 ℃, and enter into heater 12 through water distributor 13 and be heated to 80 ℃, sodium chloride solution after the intensification sprays through water-distribution nozzle 17, under the drive of hot blast 15, steam enters condensation chamber 2 and carries out condensation, and condensed liquid enters into condensed water tank 8 under action of gravitation, and this moment, temperature was 50 ℃, and after external heat exchanger 7 and former water heat exchange, discharge through condensation-water drain 21.The concentrated sodium chloride solution that is not evaporated in the vaporization chamber 1 enters into strong brine tank 23, the temperature of this moment is 55 ℃, the solution of strong brine tank 23 middle and upper parts is under the effect of circulating pump 6, after passing through strong brine circulation pipe 22 and former water mixing, enter next time evaporative crystallization circulation, and the crystal salt of strong brine tank 23 bottoms is discharged by crystal salt outlet 5.
The utility model is by preferred embodiment having carried out detailed explanation.Yet, by to the studying carefully of preamble, to the variation of each embodiment with to increase also be that one of ordinary skill in the art institute is apparent.The applicant be intended that all these variations and increase has dropped in the protection domain of the utility model claim.
Similar numbering refers to similar element in the whole text.For the purpose of clear, the situation that some line, layer, element, parts or feature are amplified may be arranged in the accompanying drawings.
Term used herein is only for to be illustrated specific embodiment, and it is not to be intended to the utility model is limited.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with the utility model one of ordinary skill in the art's understanding.Also must be clear and definite be, except clear and definite definition is arranged in this article, such as in the dictionary usually the term of definition should be interpreted as in the linguistic context of this specification and correlation technique, can having the consistent meaning, and the idealized or undue formalization that should not explain.Known function or structure are in briefly and clearly consider or repeat no more.