CN101002991A

CN101002991A - Closing circulation type system for recovering solvent

Info

Publication number: CN101002991A
Application number: CN 200610006432
Authority: CN
Inventors: 梁诗文
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-20
Filing date: 2006-01-20
Publication date: 2007-07-25
Anticipated expiration: 2026-01-20
Also published as: CN100512915C

Abstract

A closed-loop solvent recovering system for the printing machine or coating machine features that a heater-blower unit can supply hot air to baker, the volatilized solvent is induced in the heat exchanger, heat radiator and condenser of recovering system for cooling it three times to recover the solvent in recovering bath, and the cold air is delivered to evaporator, heat exchanger and heater-blower unit for heating it three times.

Description

The solvent recovering system of loop circuit

[technical field]

The invention relates to a kind of solvent recovering system of loop circuit, it is by the design that forms a closed circulation loop between printing or painting device and recovery system, order printing or the gas that painting device volatilized can reclaim in this device fully, through heating for three times and the program line liquid gas shift of three coolings, the environmental benefit of not only having is economized the energy, the solvent of volatilization is recycled with season, and then reduces the consumption of solvent, reaches best user mode.

[background technology]

General employed traditional printing device (10), as shown in Figure 1, be to start pressure fan (11) earlier before its running, calandria (12) and air exhauster (13), make baking box (14) inner formation one hot air circulate space and keep an operating temperature, make product via rolling body (15) and unreel body (16) and receive and be delivered to block letter (17) under the synchronous turn of putting and enter in the baking box (14), allow product go up behind the ink print in regular turn the hot-air mediate contact of being sent with the entrance hole (142) of air-conductor (141) and utilize leadout hole (143) that hot-air is extracted out again to form one and go into one and do well and reach the purpose of oven dry by block letter (17).

Aforesaid existing structure, it still has following disappearance: You Zhiqi to print employed solvent generally all to belong to the volatility pernicious gas, residual gas will directly be thrown in the air by air exhauster (13) through leadout hole (143) in the printing back, yet, the gas that is discharged does not pass through any processing fully, except that can't effectively reclaiming the solvent, for arround resident and air will cause severe contamination so that the ozone layer that endangers atmosphere increases environmental burden.

Be to be another existing planar gesture schematic diagram as shown in Figure 2, its printing equipment (10) is to establish one in the discharging termination of air exhauster (13) to be the recovery system (18) of active carbon tank (181), the residual gas in printing back can be reclaimed through the air exhauster (13) of baking box (14) is adsorbed in the active carbon tank (181), again through heat desorption program and cooling to collect solvent and the discharge water part in the active carbon tank (181).

Aforesaid another existing structure, it still has following disappearance: (one) refers to its active carbon tank (181) especially in the desorption of heating, cooling procedure, though solvent partly can be separated with recovery by work in the moisture content, yet, the moisture content of being discharged still can residual part solvent, so that causes water to pollute; (2) because of its activated carbon is to belong to consumptive material, on using, there is certain time limit,, more allows the waste of user's palpus change the burden of consumptive material and the dual cost of processing consumptive material so the palpus periodic replacement not only brings inconvenience.

[summary of the invention]

The object of the present invention is to provide a kind of solvent recovering system of loop circuit, by the design that forms a closed circulation loop between recovery system and printing or painting device, the gas that order printing or painting device are discharged can be heated and the program line liquid gas shift of three coolings and the defective that nothing leaks through three times in recovery system fully, avoiding the traditional printing device to cause water to pollute and the air-polluting situation really, and then effectively improve environmental benefit.

Another object of the present invention is to provide a kind of solvent recovering system of loop circuit, the gas that its printing or painting device are discharged forms the effectiveness that three coolings cause liquid gas to separate by heat exchanger, radiator, condenser and the evaporimeter of recovery system, the solvent of order volatilization can be condensed into liquid once more and be recycled fully by solvent through the condensation accumulator tank, and then the consumption of reduction solvent, reach best user mode.

A further object of the present invention is providing a kind of solvent recovering system of loop circuit, the solvent that its printing or painting device utilization are volatilized is after the conversion of the capable liquid gas of condenser of recovery system is reclaimed, air then can be in regular turn through capable three progressive the heating of evaporimeter, heat exchanger and calandria, originally the temperature that has heated in the loop of sealing prevent that not only hot gas runs off, also can shorten and add the effect that heat aging Yi Da economizes the energy.

In order to achieve the above object, the invention provides a kind of solvent recovering system of loop circuit, it is characterized in that: printing or painting device are the closed circuits that forms a sealing with a recovery system, this recovery system is provided with a heat exchanger, be connected in a side of heat exchanger and the air exhauster of printing or painting device and the pressure fan of tool heater, opposite side connects a radiator and an evaporimeter of establishing a tool cooling tower respectively, and establish the condenser of a tool condensation accumulator tank and radiator forms a pipeline that communicates, and carry out two-way circulation with a compressor respectively between evaporimeter and condenser and establish a pipeline that communicates to realize separately gas being heated and the purpose of liquid gas shift (being condensation); Whereby, make the solvent of volatilization in printing or the painting device baking box be collected the consumption that is stored in the interior recycling of condensation accumulator tank and then reduces solvent, gas with the volatilization in season can circulate in this loop fully and prevent to leak, avoiding traditional printing water that device is caused to pollute really and the air-polluting situation takes place, and then effectively improve environmental benefit.

The solvent recovering system of described loop circuit is characterized in that: this printing or painting device are to can be the japanning printing or go up ink print.

In sum, the structure of the solvent recovering system of loop circuit of the present invention and the progressive effect that reaches thereof are summarized as follows: the solvent recovering system of loop circuit of the present invention, wherein printing or the painting device pressure fan of establishing the tool calandria operation of drying for baking box, utilize air exhauster that heat exchanger, radiator and the condenser that the solvent that volatilizees is evacuated to recovery system carried out three coolings again, make the solvent of volatilization carry out liquid gas and separate and be recovered in the condensation accumulator tank, and cold air promptly is sent to the pressure fan of evaporimeter, heat exchanger and tool calandria and carries out three times and heat; Whereby, making the solvent of volatilization be able to store collected recycles in the condensation accumulator tank, and then the consumption of reduction solvent, gas with the volatilization in season can circulate and the anti-anxiety that leaks in this loop fully, pollute and air pollution with the water of avoiding the traditional printing device to be caused really, and then effectively improve environmental benefit and save the energy.

[description of drawings]

Fig. 1: the planar gesture schematic diagram that is existing apparatus.

Fig. 2: the planar gesture schematic diagram that is another existing apparatus.

Fig. 3: be printing equipment of the present invention and recovery system plane do action schematic diagram.

[specific embodiment]

Now conjunction with figs. describes preferred embodiment of the present invention in detail as back:

Be printing of the present invention or painting device and recovery system plane do action schematic diagram as shown in Figure 3, its printing or painting device (40) (can be the japanning printing or go up ink print) are the closed circuits that forms a sealing with a recovery system (50), this recovery system (50) is provided with a heat exchanger (51), be connected in a side of heat exchanger (51) and the air exhauster (41) of printing or painting device (40) and the pressure fan (42) of tool heater, opposite side connects a radiator (52) and an evaporimeter (53) of establishing a tool cooling tower (521) respectively, and the condenser (54) of establishing a tool condensation accumulator tank (541) forms a pipeline that communicates with radiator (52), and evaporimeter (53) and condenser (54) are respectively with a compressor (55) the two-way circulation of row and establish a pipeline that communicates separately gas is heated and the purpose of liquid gas shift (being condensation), whereby, form hot-air and discharge in the radiator (52) that enters heat exchanger (51) and tool cooling tower (521) in regular turn row cooling for the first time respectively by air exhauster (41) and lower the temperature for the second time when printing or the China ink material of painting device (40) or coating enter baking box (40) in through pressure fan (42) oven dry volatilization, under the two-way circulation of condenser (54) and compressor (55), make the solvent of volatilization condense into the capable liquid gas shift of liquid more subsequently, making solvent be able to store collected recycles in condensation accumulator tank (541), and then the consumption of reduction solvent, then cold air promptly enters in the evaporimeter (53) with the two-way circulation of compressor (55) row in regular turn and carries out respectively in the heat exchanger (51) that heat first time and heat the second time, make cold air be able to progressively in loop heat and heat for the third time through calandria by pressure fan (42), retransfer in baking box (40), make the temperature that originally has in the loop of sealing, heat and prevent that not only hot gas runs off, also can shorten and add the effectiveness that heat aging Yi Da economizes the energy, simultaneously, make printing or painting device (40) gas of being discharged can be fully in recovery system (50) in through heating for three times and program line liquid gas shift that three times are lowered the temperature and do not have the anxiety that leaks, avoiding traditional printing water that device is caused to pollute really and the air-polluting situation takes place, and then effectively improve environmental protection and economize the source benefit person.

In sum, the present invention has usability and progressive on the industry, and the present invention do not see any publication, and the above only is wherein preferred embodiment of the present invention.

[main element symbol description]

40 ... printing or application device 41 ... air exhauster

42 ... pressure fan 50 ... recovery system

51 ... heat exchanger 52 ... radiator

521 ... cooling tower 53 ... evaporimeter

54 ... condenser 541 ... the condensation accumulator tank

55 ... compressor

Claims

1, a kind of solvent recovering system of loop circuit, it is characterized in that: printing or painting device are the closed circuits that forms a sealing with recovery system, this recovery system is provided with a heat exchanger, be connected in a side of heat exchanger and the air exhauster of this printing or painting device and the pressure fan of tool heater, opposite side connects a radiator and an evaporimeter of establishing a tool cooling tower respectively, and the condenser that is provided with a tool condensation accumulator tank forms a pipeline that communicates with radiator, and respectively with the capable two-way circulation of a compressor and establish a pipeline that communicates so that separately gas is heated and the liquid gas shift, the solvent collection of volatilization is stored in the condensation accumulator tank in this printing or the painting device baking box between evaporimeter and condenser.

2, the solvent recovering system of loop circuit as claimed in claim 1 is characterized in that: this printing or painting device can be painted and be printed or last ink print.