阅读说明：本技术 一种无碳复写纸产线的热循环系统 (Thermal cycle system of carbonless copy paper production line ) 是由 冀衍超 尹绪杰 李昀谦 孙志民 乔元彪 于 2020-12-28 设计创作，主要内容包括：本发明属于废气回收领域,具体涉及一种无碳复写纸产线的热循环系统,构建了多个热循环,通过四个热循环将锅炉产生的热能最大限度的回收利用,循环利用到各个场景,能够最大限度的对能源进行利用,同时产线仅有较少废气排出,减少了对环境的损害。(The invention belongs to the field of waste gas recovery, and particularly relates to a heat circulation system of a carbon-free copy paper production line.)

1. The utility model provides a heat circulation system that carbonless copy paper produced line, includes water storage tank, boiler and return water machine, the water storage tank export is connected with the boiler water inlet, its characterized in that, heat circulation system includes a plurality of hydrologic cycles:

a first cycle: the air outlet of the boiler is connected to the inlet of a radiator of the coating machine, the outlet of the radiator of the coating machine is connected to a first drain valve, the outlet of the radiator of the coating machine is connected to the inlet of a water returning machine after passing through the first drain valve, and the water outlet of the water returning machine is connected to the water inlet of the boiler;

and a second circulation: the air outlet of the water returning machine is connected to the inlet of the drying cylinder of the coating machine, the outlet of the drying cylinder of the coating machine is connected to a second drain valve, the drying cylinder of the coating machine is connected to a water returning tank after passing through the second drain valve, and the water returning tank is connected to the inlet of the water storage tank;

and a third cycle: the outlet of the water storage tank is connected to the inlet of the heater through a water pump, and the outlet of the heater is connected to the inlet of the water storage tank;

and a fourth cycle: the outlet of the water storage tank is connected to the water inlet of the boiler flue energy saver, and the water outlet of the boiler flue energy saver is connected to the inlet of the water storage tank.

2. The heat cycle system of claim 1, further comprising a water source connected to the ion exchanger, wherein the water source is connected to the inlet of the water storage tank after passing through the ion exchanger.

3. The heat cycle system of the carbonless copy paper production line as claimed in claim 2, wherein the water returning machine comprises a pump radiator, the water source is connected to the pump radiator after passing through the ion exchanger, and is connected to an inlet of the water returning tank after passing through the pump radiator.

4. The thermal cycle system of the carbonless copy paper production line as claimed in claim 1, further comprising a water heater, wherein the water heater comprises a water tank and a heating pipe, the heating pipe is disposed in the water tank, and the heating pipe is connected to the outlet of the water storage tank.

5. The heat cycle system of the carbonless copy paper production line as claimed in claim 1, wherein in the fourth cycle, the boiler flue economizer comprises a flue gas pipeline and a hot water cavity, the hot water cavity surrounds the outside of the flue gas pipeline, a water inlet and a water outlet are arranged on the hot water cavity, the water inlet is connected with an outlet of the water storage tank, the water outlet is connected with an inlet of the water storage tank, and the flue gas pipeline is connected with a flue of the boiler.

Technical Field

The invention belongs to the field of waste gas recovery, and particularly relates to a heat circulation system of a carbonless copy paper production line.

Background

In the production line of the carbonless copy paper, a coating machine radiator and a coating machine drying cylinder are mainly used for drying the carbonless copy paper, steam is used for supplying heat to serve as a heat source, a boiler is used for heating water to provide the steam, and a water storage tank is used for supplying water to the boiler. In the prior art, after the water vapor dries the carbon paper, the water vapor is directly discharged to the outside through a waste gas pipeline, the waste gas has extremely high temperature, energy is wasted, and the waste gas can pollute the air environment.

Disclosure of Invention

In view of the above problems, the present invention provides a heat cycle system for a carbonless copy paper production line, which constructs a plurality of heat cycles, recycles waste gas from the carbonless copy paper production line, recycles the waste gas to each scene, can utilize energy to the maximum extent, and reduces environmental damage because the production line discharges less waste gas.

The scheme provided by the invention is as follows:

the utility model provides a no carbon copy paper produces heat-cycle system of line, includes boiler and water storage tank, and during no carbon copy paper's production line was produced, to no carbon copy paper's stoving, mainly used coating machine radiator and coating machine dryer were dried, carried out the heat supply by vapor and is regarded as the heat source, heaied up water by the boiler, provided vapor, and the water storage tank is used for supplying water to the boiler. In the prior art, after the water vapor dries the carbon paper, the water vapor is directly discharged to the outside through a waste gas pipeline, the waste gas has extremely high temperature, energy is wasted, and the waste gas can pollute the air environment. The invention aims to provide a heat circulation system, which recycles waste gas of a carbonless copy paper production line to each scene, can utilize energy to the maximum extent, and reduces the damage to the environment because the production line only discharges less waste gas.

The heat cycle system provided by the invention also comprises a water returning machine, wherein the water returning machine is used for recovering waste residual water vapor and hot water condensed from the water vapor, a pump is arranged in the water returning machine and can provide power for the recovery cycle of the water returning machine, the water returning machine is provided with an air inlet for the waste residual water vapor to enter, a water inlet for hot water to enter, an air outlet for the redundant water vapor to discharge and a water outlet for the hot water to discharge, and the hot water entering from the water inlet is pumped out from the water outlet under the power of the water pump.

This thermal system has established a plurality of thermal cycles in water storage tank, boiler and backwater machine through the backwater machine, retrieves the waste heat:

a first cycle: the air outlet of the boiler is connected to the inlet of the coating machine radiator, a heat source is provided for the coating machine radiator, paper is dried, the dried water vapor is discharged through the outlet of the coating machine radiator, the outlet of the coating machine radiator is connected to a first drain valve, the outlet of the coating machine radiator is connected to the inlet of a water returning machine through the first drain valve, the drain valve can collect the condensed water of the steam in the pipeline and discharge the condensed water, the condensed water is still hot water, the hot water is connected to the water inlet of the water returning machine through the pipeline, the hot water is pumped back to the water inlet of the boiler from the water outlet of the water returning machine through a water pump in the water returning machine, the hot water is recycled and heated for use again, the uncondensed water vapor is connected to the air inlet of the water returning machine after passing through the drain valve.

And a second circulation: the air outlet of the water returning machine is connected to the inlet of a drying cylinder of the coating machine, uncondensed water vapor enters the drying oven in the first circulation to provide a heat source for the drying cylinder of the coating machine, paper is dried, the outlet of the drying cylinder of the coating machine is connected to the second drain valve, the temperature of the water vapor entering the drying cylinder of the coating machine is lower than that in the first circulation, the water vapor is mostly condensed into water after passing through the drying oven, the water vapor is connected to the water returning tank after passing through the second drain valve, the water returning tank collects the condensed hot water, and the hot water is pumped to the inlet of the water storage tank from the water returning tank by the.

And a third cycle: the water storage tank export is connected to the heating installation import through the water pump, because in the second circulation, the water of collecting in the jar that returns is the water that the vapor in the coating machine dryer condenses into, the temperature is higher, after squeezing into the water storage tank with the hot water in the jar that returns, with the water storage tank in from the cold water mixing back of water source department access, can directly insert the regional heating installation interface of official working, heat for the office area, heating installation exit linkage to water storage tank import, hot water is after the heating installation mesocycle, back to the water storage tank again, recycles.

And a fourth cycle: the water storage tank outlet is connected to a water inlet of the boiler flue energy saver, a water outlet of the boiler flue energy saver is connected to an inlet of the water storage tank, water in the water storage tank is pumped into the boiler flue energy saver, the water is heated and heated by heat energy collected from tail gas of a boiler flue, and then pumped back to the water storage tank, and the water in the water storage tank is heated.

The boiler flue economizer comprises a flue gas pipeline and a hot water cavity, the hot water cavity surrounds the outside of the flue gas pipeline, a water inlet and a water outlet are formed in the hot water cavity, the flue gas pipeline is connected with a flue of a boiler, after high-temperature waste gas in the boiler flue is introduced into the flue gas pipeline, water in the surrounding hot water cavity is heated by heat energy, and the heated hot water can be pumped back to the water storage tank by generally heating the water to about 85 ℃.

In the circulation, the water in the water storage tank is a hot water source and a cold water source, wherein the cold water source is a water source directly accessed from the outside of a production line, generally a tap water pipe, the water source is firstly accessed into an ion exchanger, and then is accessed into an inlet of the water storage tank after being softened by the ion exchanger to be used as the cold water source of the water storage tank; the hot water source is divided into two parts, the first part is hot water injected from the recovery tank in the second cycle, and the second part is hot water heated by the boiler flue economizer in the fourth cycle. The two parts of hot water source and the cold water source are mixed, so that the water in the water storage tank keeps a proper temperature and can be used as heating water in an office area, and after the water with the initial temperature is pumped into the boiler, the temperature rise time is shorter, the energy consumption of the boiler can be reduced, and the cost is reduced.

Wherein, the cold water of water source department can also let in the pump radiator of the inside water pump of backwater machine after ion exchanger softens, dispels the heat for the water pump in the backwater machine, avoids water pump bearing scale deposit to block up, extension water pump life, and the water after the heat dissipation lets in the backwater jar and collects.

Furthermore, the outlet of the water storage tank is connected to a water heater, the water tank of the water heater and the heating pipe are generally copper coil pipes, hot water in the water storage tank is introduced into the copper coil pipes, the heat of the water in the water storage tank is used as a heat source of the heating pipe to heat the water in the water tank, and the water in the water tank can be used for bathing after being heated.

Compared with the prior art, the invention has the advantages that:

1. the heat energy generated by the boiler is recycled to the maximum extent through four thermal cycles, so that the energy is saved, and the exhaust emission is reduced;

2. the water storage tank utilizes the hot water sources of the two parts to raise the temperature of water in the water storage tank, so that the water entering the boiler has higher initial temperature, the boosting time of the boiler can be shortened, the energy loss is saved, and the cost is reduced;

3. the hot water in the water storage tank can be used for heating office areas and bathing water, so that energy is saved, and the life is facilitated.

Drawings

Fig. 1 is a block diagram of the present invention.

In the figure, 1, a boiler, 2, a coating machine radiator, 3, a first drain valve, 4, a water returning machine, 5, a coating machine drying cylinder, 6, a tap water pipeline, 7, an ion exchanger, 8, a machine pump radiator, 9, a second drain valve, 10, a water storage tank, 11, a water returning tank, 12, a water heater, 13, a heater, 14 and a boiler flue energy saver.

Detailed Description

The invention is further illustrated below with reference to the figures and examples.

The utility model provides a thermal cycle system that carbonless copy paper produced line, includes boiler 1 and water storage tank 10, is equipped with water inlet and gas outlet on the boiler 1, all controls through the valve, and water storage tank 10 import and export are also controlled through the valve, and the delivery port of water storage tank 10 leads to pipe and is connected to the water inlet of boiler 1.

The water returning machine 4 is internally provided with a water pump which can provide power for the recycling of water, the water returning machine 4 is provided with an air inlet for waste water vapor to enter, a water inlet for hot water to enter, an air outlet for excessive vapor to discharge and a water outlet for hot water to discharge, and the hot water entering from the water inlet is pumped out from the water outlet under the power of the water pump. The water returning machine can be realized by using the water returning machine in the prior art.

A first cycle:

the gas outlet of boiler 1 is connected to the import of coating machine radiator 2 through first steam pipe, the export of coating machine radiator 2 is connected to first trap 3 through first steam pipe, two pipelines are connected out to first trap 3, be respectively the first steam pipe that passes through steam and the first hot water pipe way that passes through hot water, first steam pipe is connected to the air inlet of water returning machine 4, first hot water pipe is connected to the water inlet of water returning machine 4, the water outlet of water returning machine 4 is connected to the water inlet of boiler 1 through first hot water pipe way, constitute first circulation.

And a second circulation:

the air outlet of the water returning machine 4 is connected to the heat source inlet in the drying cylinder 5 of the coating machine through a second steam pipeline, the heat source outlet is connected to a second drain valve through a second steam pipeline, the second drain valve is connected to the inlet of the water returning tank 11 through a second hot water pipeline, and the outlet of the water returning tank 11 is connected to the inlet of the water storage tank 10 through a second hot water pipeline, so that a second circulation is formed. Wherein, a water pump is additionally arranged on a second hot water pipeline between the backwater tank 11 and the water storage tank 10. The small amount of residual air in the second trap 9 can be discharged by connecting to a discharge device.

And a third cycle:

the outlet of the water storage tank 10 is connected to the water inlet of the office heating 13 through a third hot water pipeline, and the water outlet of the heating 13 is connected to the inlet of the water storage tank 10 through a third hot water pipeline to form a third circulation for heating the office. Wherein, a water pump is also required to be additionally arranged on a third hot water pipeline between the outlet of the boiler 1 and the inlet of the heater 13 to provide power.

And a fourth cycle:

the outlet of the water storage tank 10 is connected to the water inlet of the boiler flue economizer 14 through a fourth hot water pipeline, the water outlet of the boiler flue economizer 14 is connected to the inlet of the water storage tank through a fourth hot water pipeline, and the waste heat of the boiler flue gas is used for heating the water to form a fourth cycle. The boiler flue gas economizer 14 can achieve the effect by adopting the prior art.

A first bypass:

a tap water pipeline 6 is connected to the inlet of an ion exchanger 7, and the outlet of the ion exchanger 7 is connected to the inlet of the boiler 1 through a water pipe to provide a water source for the boiler 1; meanwhile, the outlet of the ion exchanger 7 is also connected to the inlet of a pump radiator 8 of a water pump in the water return machine 4 through a water pipe to radiate heat for the water pump, and the outlet of the pump radiator 8 is connected to the inlet of a water return tank 11 through a water pipe to collect the heat.

A second bypass:

the outlet of the boiler is connected to a heating pipe in the water heater 12 through a water pipe, and the water in the water tank in the water heater 12 is heated for bathing.

The first steam pipeline and the second steam pipeline are steam pipelines in the prior art, the first hot water pipeline, the second hot water pipeline, the third hot water pipeline and the fourth hot water pipeline are hot water pipes in the prior art, the above numbers are only used for distinguishing the pipelines in respective circulation, no substantial difference exists, and the pipelines in the prior art can be selected for use according to the position arrangement of a specific production line.