A kind of enclosed heat pump low-temperature evaporation crystallization treatment equipment
Technical field
The utility model is related to a kind of enclosed heat pump low-temperature evaporation crystallization treatment equipment.
Background technology
Evaporative crystallization is a basic chemical industry operation unit, and many fields all relate to evaporative crystallization link at present.
And evaporative crystallization is related to liquid from liquid phase to gas phase, evaporation latent heat is very huge, this results in evaporative crystallization
Link huge energy consumption.And since evaporative crystallization temperature is higher, also there is higher requirement to the material of evaporation equipment.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems, providing a kind of reduce manufactures the low enclosed of cost, comprehensive energy consumption
Heat pump low-temperature evaporation crystallization treatment equipment.
The utility model, a kind of enclosed heat pump low-temperature evaporation crystallization treatment equipment are swollen including enclosed heat pump condenser, electronics
Swollen valve, drying machine, chilled water circulating pump, crystallizing tank, centrifuge, magma tank, magma pump, enclosed evaporator with heat pump, forced circulation
Pump, cyclone, cyclone feed pump, evaporative crystallization separation chamber, circulating fan, condensate pump, heating sheet heat exchanger, condensed water storage
Tank and condensation sheet heat exchanger;Enclosed heat pump condenser is connected by chilled water circulating pump with condensation sheet heat exchanger, forms saturated water
Steam condensing circuit, electric expansion valve are connected with enclosed heat pump condenser and enclosed evaporator with heat pump;Enclosed evaporator with heat pump leads to
It crosses forced circulation pump with heating sheet heat exchanger to be connected, forms circulated air Heat transfer systems;Water storage tank is condensed to exchange heat with cold plate
Device is connected, and discharges condensed water by condensate pump, forms condensation water discharge system;Condensation sheet heat exchanger and heating sheet heat exchanger lead to
Pervaporation Crystallization Separation room, circulating fan form the closed cycle circuit of the evaporation and condensation of another water;Evaporative crystallization separates
Room connects cyclone by cyclone feed pump, and cyclone connection crystallizing tank, crystallizing tank connection centrifuge, centrifuge is via magma
Tank simultaneously connects drying machine, another way connection evaporative crystallization separation chamber all the way by magma pump.
The utility model has following good effect:
1), the utility model, using low-temperature evaporation, system belongs to normal pressure state, and equipment can use low price
Plastic apparatus make equipment investment reduce more than 90%;The utility model belongs to 20-50 DEG C of low-temperature evaporation, to heat-sensitive substance
Destruction be also minimum;The utility model belongs to the evaporation of low noise, low vibration;
2), the utility model enclosed heat pump low-temperature evaporation crystallization, belong to evaporation with freeze combination.At present, closed type hot
Pump is typically just applied to refrigeration link therein, and air-source water heater is just with to heating link therein, moreover, its energy
The typical value COP of consumption is relatively low, is usually no more than 6, this just causes very high energy consumption to being applied to evaporative crystallization link,
The electricity of the energy consumption more than 100kwh of one ton of water of evaporation;And the COP values of the enclosed heat pump low-temperature evaporation crystallization of the utility model can be with
Reach 23, greatly reduce the energy consumption for evaporating water per ton.
The utility model is suitable for but is not limited to food fermentation industry, pharmaceutical industry, bioengineering industry, chemical industry row
The evaporating, concentrating and crystallizing in the fields such as industry, smelting industry, steamer field of seawater desalination and wastewater zero discharge.Therefore, the utility model,
Have the advantages that reduction manufacture cost, comprehensive energy consumption are low.
Example below, which is described with reference to the drawings, is further described the utility model.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of the utility model.
In figure, 1, enclosed heat pump condenser;2nd, electric expansion valve;3rd, drying machine;4th, chilled water circulating pump;5th, crystallizing tank;
6th, centrifuge;7th, magma tank;8th, magma pumps;9th, enclosed evaporator with heat pump;10th, forced circulation pump;11st, cyclone;12nd, cyclone
Feed pump;13rd, evaporative crystallization separation chamber;14th, circulating fan;15th, condensate pump;16th, sheet heat exchanger is heated;17th, condensed water stores up
Tank;18th, sheet heat exchanger is condensed.
Specific embodiment
With reference to Fig. 1, the present embodiment is a kind of enclosed heat pump low-temperature evaporation crystallization treatment equipment, including enclosed heat pump condenser
1st, electric expansion valve 2, drying machine 3, chilled water circulating pump 4, crystallizing tank 5, centrifuge 6, magma tank 7, magma pump 8, enclosed heat pump
Evaporator 9, forced circulation pump 10, cyclone 11, cyclone feed pump 12, evaporative crystallization separation chamber 13, circulating fan 14, condensation
Water pump 15, heating sheet heat exchanger 16, condensation water storage tank 17 and condensation sheet heat exchanger 18;Enclosed heat pump condenser 1 passes through chilled water
Circulating pump 4 is connected with condensation sheet heat exchanger 18, forms saturated vapor condensing circuit, and electric expansion valve 2 is condensed with enclosed heat pump
Device 1 and enclosed evaporator with heat pump 9 are connected;Enclosed evaporator with heat pump 9 is connected by forced circulation pump 10 with heating sheet heat exchanger 16,
Form circulated air Heat transfer systems;Condensation water storage tank 17 is connected with condensation sheet heat exchanger 18, is discharged by condensate pump 15 cold
Condensate forms condensation water discharge system;Condensation sheet heat exchanger 18 and heating sheet heat exchanger 16 by evaporative crystallization separation chamber 13, follow
Ring fan 14 forms the closed cycle circuit of the evaporation and condensation of another water;Evaporative crystallization separation chamber 13 is fed by cyclone
Pump 12 connection cyclones 11, cyclone 11 connect crystallizing tank 5, crystallizing tank 5 connect centrifuge 6, centrifuge 6 via magma tank 7 simultaneously
8 one tunnels are pumped by magma and connect drying machine 3, another way connection evaporative crystallization separation chamber 13.
The evaporative crystallization processing of the utility model, it is cold that closed type heat pump low-temperature evaporation crystallization treatment equipment includes enclosed heat pump
Condenser 1, electric expansion valve 2, drying machine 3, chilled water circulating pump 4, crystallizing tank 5, centrifuge 6, magma tank 7, magma pump 8, enclosed
Evaporator with heat pump 9, forced circulation pump 10, cyclone 11, cyclone feed pump 12, evaporative crystallization separation chamber 13, circulating fan 14,
Condensate pump 15, heating sheet heat exchanger 16, condensation water storage tank 17 and condensation sheet heat exchanger 18;Enclosed heat pump condenser 1 is by cold
Freeze water-circulating pump 4 to be connected with condensation sheet heat exchanger 18, form saturated vapor condensing circuit, generated using closed type heat pump
Cold is passed to circulated air using water, circulated air is made to cool down by cold, and condensation is realized from saturated vapor is made;Electric expansion valve 2
It is connected with enclosed heat pump condenser 1 and enclosed evaporator with heat pump 9, the continuous liquefaction and vaporization of refrigerant is realized, so as to obtain
Heat and cold;Enclosed evaporator with heat pump 9 is connected by forced circulation pump 10 with heating sheet heat exchanger 16, forms circulated air heat
Transmission system;Condensation water storage tank 17 is connected with condensation sheet heat exchanger 18, discharges condensed water by condensate pump 15, forms condensation water
Discharge system;Condensation sheet heat exchanger 18 and heating sheet heat exchanger 16 are formed separately by evaporative crystallization separation chamber 13, circulating fan 14
The closed cycle circuit of the evaporation and condensation of one water, circulated air is in heating 16 continuous heat drying of sheet heat exchanger, Ran Hou
Evaporative crystallization separation chamber 13 completes the evaporating, concentrating and crystallizing process of solution by the contact with solution large area, and solution is from evaporation
Crystallization Separation room 13 come out after into cold plate heat exchanger 18, complete the temperature-fall period of circulated air, water recovery is into condensed water
And it discharges;Evaporative crystallization separation chamber 13 connects cyclone 11 by cyclone feed pump 12, and cyclone 11 connects crystallizing tank 5, knot
Brilliant tank 5 connects centrifuge 6, and centrifuge 6 pumps 8 one tunnels connection drying machine 3 via magma tank 7 and by magma, and another way connection is steamed
Send out Crystallization Separation room 13;Upper clear supernate in circulation loop returns to evaporative crystallization separation chamber 13 and continues evaporative crystallization, and lower part carries
The brilliant liquid of a large amount of crystal enters crystallizing tank 5, and the crystal of 5 the inside of crystallizing tank enters centrifuge 6 with magma and isolates crystal;Thereafter,
Magma enters magma tank 7 and a part of magma is got to drying machine 3 by magma pump 8, and another part magma is back to evaporation knot
Brilliant separation chamber 13.
The evaporative crystallization processing method of the utility model is based on following principle, and enclosed heat pump releases heat and corresponding
Cold.Circulated air, into evaporation separation crystallisation chamber and supernatant material-heat-exchanging, takes away moisture after heating plate changes interior heating, wet
Temperature reduces after circulated air after degree increase enters condensation sheet heat exchanger, and water vapour realizes separation after becoming water droplet.After concentration
After fine crystals are precipitated in saturated solution, by cyclone, upper clear supernate continues evaporative crystallization, and lower part carries the brilliant liquid of a large amount of crystal
Into crystallizing tank.
The utility model, the effect of cyclone 11 are to carry out preliminary separation of solid and liquid, it enters cyclone using solution tangent line,
Heavy crystal walks downward, and solution is up walked, and this situation is suitble to continuous production;The discharging solid-to-liquid ratio of cyclone lower part is about
It is 1:3, magma is referred to as, these magmas, which enter in crystallizing tank, makes crystal grow up, and is discharged into centrifuge realization afterwards to a certain extent
Separation of solid and liquid, liquid are called magma and are returned System relays by magma pump and continued evaporative crystallization, and crystal is packaged discharge after crystallization;Entirely
The dope of some difficult evaporation difficult degradation for being called kettle base solution is understood in system, it is long-term to be enriched with if non-quantitative discharge system
It will make vapo(u)rization system cisco unity malfunction, so system design, which periodically discharges a small amount of kettle base solution, enters drying machine 3, make system long
Phase stable operation.
The utility model, enclosed heat pump low-temperature evaporation method for crystallising are that efficient magnetic suspension centrifugal chiller provides first
COP values are up to 23 efficiency, and kilowatt-hour can be allow to generate the heat for providing 40kg water evaporation needs and corresponding cold.
In addition exclusive energy-saving design, enables this technology to be smoothly completed in the case of low energy consumption, water per ton its comprehensive energy consumption is evaporated
Less than 40 degree electricity.Secondly the set system is to belong to atmospheric low-temperature evaporative crystallization, so just not having to resist using expensive titanium
The corrosion of chlorion, the set system is using the plastic material of very low cost, and equipment manufacturing costs are than current wastewater treatment
Equipment cost low more than 90%.