Crystallizer cooling system in the crystallised sugar production process
Technical field
The utility model belongs to glucose manufacturing technology field, relates in particular to crystallizer cooling system in a kind of crystallised sugar production process.
Background technology
The crystallisation process that at present crystallised sugar is produced in the prior art generally adopts frozen water directly to get into ice maker chuck and the coil pipe of crystallizer and then material is lowered the temperature.Because of frozen water temperature (7-12 ℃) and temperature of charge (28-60 ℃) temperature difference are bigger, cause in the crystallisation process easily because of the material rapid cooling form pseudo-brilliant, reduce crystallization yield.In addition, because of the frozen water long-time running, water quality is unstable, and impure higher, and coil pipe and the chuck to crystallizer corrodes easily, and crystallizer will be in case after the corrosion, frozen water just will enter into the inside of crystallizer, thereby contaminated material influences quality product.
Summary of the invention
The purpose of the utility model is, overcomes the deficiency of prior art, and crystallizer cooling system in a kind of crystallised sugar production process is provided.This system adds plate-type heat exchanger between frozen water and crystallizer, the cold that cuts off frozen water and ice maker directly exchanges, and stops material and pollutes.Through the temperature of plate-type heat exchanger crystallization control machine water inlet, guarantee the temperature difference of frozen water and material, reduce pseudo-brilliant generation.
For solving the problems of the technologies described above; The technical scheme of the utility model is: crystallizer cooling system in the crystallised sugar production process; Comprise crystallizer, be positioned at coil pipe and chuck on the crystallizer; Also comprise circulating water inlet, recirculated water return water pipe, frozen water water inlet pipe and CHR, said circulating water inlet is connected with the water-in of chuck and coil pipe respectively, and said recirculated water return water pipe is connected with the water outlet of chuck and coil pipe respectively; Said recirculated water return water pipe is connected through plate-type heat exchanger with circulating water inlet, and said frozen water water inlet pipe is connected with plate-type heat exchanger respectively with CHR.Frozen water gives crystallizer inner circulating water cooling through plate-type heat exchanger; Cryogenic recirculated water is used further to the cooling of material; Such structure does not directly contact crystallizer with frozen water; Thereby avoided because pipeline damages to reduce the temperature difference of frozen water and material simultaneously again, reduced the generation of pseudo-crystalline substance the pollution of material.
One end of the described recirculated water return water pipe of the utility model has water compensating valve and exhaust-valve respectively.Not enough or too much the time when recirculated water, or open water compensating valve or exhaust-valve carries out moisturizing or emptying.
On the described recirculated water return water pipe of the utility model, pump is arranged.Power is provided for the circulation of recirculated water through pump, gets back in the crystallizer after making recirculated water through the plate-type heat exchanger cooling and lower the temperature to material.
The beneficial effect of the utility model is: crystallizer cooling system in the crystallised sugar production process; Comprise crystallizer, be positioned at coil pipe and chuck on the crystallizer; Also comprise circulating water inlet, recirculated water return water pipe, frozen water water inlet pipe and CHR; Said circulating water inlet is connected with the water-in of chuck and coil pipe respectively; Said recirculated water return water pipe is connected with the water outlet of chuck and coil pipe respectively, and said recirculated water return water pipe is connected through plate-type heat exchanger with circulating water inlet, and said frozen water water inlet pipe is connected with plate-type heat exchanger respectively with CHR.Between frozen water and crystallizer, add plate-type heat exchanger, the cold that cuts off frozen water and ice maker directly exchanges, and stops material and pollutes.Through the temperature of plate-type heat exchanger crystallization control machine water inlet, guarantee the temperature difference of frozen water and material, reduce pseudo-brilliant generation.Can control the frozen water flow through on off system, thus the accurate Control Circulation water leaving water temperature(LWT) of ability, the temperature that promptly gets into crystallizer, the excessive low problem of crystallization yield that causes of avoid lowering the temperature water and material temperature difference.Avoided frozen water directly to get into crystallizer, frozen water is to the pollution of material.
Description of drawings
Fig. 1 is the structural representation of the utility model,
Among the figure: 1-frozen water water inlet pipe, 2-recirculated water return water pipe, 3-pump, 4-plate-type heat exchanger, 5-circulating water inlet, 6-CHR, 7-water compensating valve, 8-exhaust-valve, 9-crystallizer, 10-coil pipe, 11-chuck.
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Embodiment
According to shown in Figure 1; Crystallizer cooling system in the crystallised sugar production process; Comprise crystallizer 9, be positioned at coil pipe 10 and chuck 11 on the crystallizer 9; Also comprise circulating water inlet 5, recirculated water return water pipe 2, frozen water water inlet pipe 1 and CHR 2, circulating water inlet 5 is connected with the water-in of chuck 11 with coil pipe 10 respectively, and recirculated water return water pipe 2 is connected with the water outlet of chuck 11 with coil pipe 10 respectively; Recirculated water return water pipe 2 is connected through plate-type heat exchanger 4 with circulating water inlet 5, and frozen water water inlet pipe 1 is connected with plate-type heat exchanger 4 respectively with CHR 6.One end of recirculated water return water pipe 2 has water compensating valve 7 and exhaust-valve 8, and pump 3 is arranged on the recirculated water return water pipe 2.