CN102168850B - Recycling system for condensed water used for paper manufacturing - Google Patents

Abstract

The invention discloses a recycling system for condensed water used for paper manufacturing, which comprises a first return main pipe for condensing water, a second return main pipe for condensing water, a third return main pipe for condensing water, a drainage tank, a drainage pump, and a deaerator. The first return main pipe for condensing water, the second return main pipe for condensing water, and the third return main pipe for condensing water are communicated with the drainage tank; the drainage tank is communicated with the drainage pump through a valve; and the drainage pump is communicated with the deaerator through a valve. The recycling system can recycle a large quantity of clean hot water medium without impurities an the water temperature is high; the hot water medium can be directly fed into a boiler for cyclic utilization without chemical water processing, so that the production cost is reduced, and the purposes of saving energy and lowering energy consumption are realized; therefore, with the recycling system, energy saving and emission reduction are effectively realized.

Description

The papermaking condensate return system

Technical field

The present invention relates to pulp technology for making paper, particularly relate to the papermaking condensate return system.

Background technology

After a large amount of steam are accomplished heat exchanges in the paper enterprise, produce that a large amount of condensate that has uniform temperature is discharged into trench and out in the cold, the clean free from admixture of this condensate water quality, and also have a large amount of heat energy, be discharged very uneconomical.Reclaim the papermaking condensate and have following problem: 1. the gathering system of each workshop condensate is comparatively complicated, and the rebuilding construction workload is big, the 2. interface work equipment component of need stopping using, and influence is produced.Reclaiming papermaking condensate engineering mainly is to reclaim certain heat energy and clean water, improves economy and using water wisely.

Summary of the invention

The objective of the invention is to avoid weak point of the prior art and a kind of papermaking condensate return system is provided.

The object of the invention is realized through following technical measures.

The papermaking condensate return system comprises the female pipe of condensate first backwater, the female pipe of condensate second backwater, the female pipe of condensate the 3rd backwater, drain tank, drainage pump and oxygen-eliminating device; The female pipe of said condensate first backwater, the female pipe of condensate second backwater and the female pipe of condensate the 3rd backwater are communicated in said drain tank, and said drain tank is communicated in said drainage pump through valve, and said drainage pump is communicated in said oxygen-eliminating device through valve.

Said drain tank comprises first drain tank, second drain tank, the 3rd drain tank and the 4th drain tank.

The female pipe of said condensate first backwater is communicated in first drain tank, the 3rd drain tank and the 4th drain tank respectively; The female pipe of condensate second backwater is communicated in first drain tank, second drain tank, the 3rd drain tank and the 4th drain tank respectively, and the female pipe of condensate the 3rd backwater is communicated in second drain tank, the 3rd drain tank and the 4th drain tank respectively.

Said oxygen-eliminating device comprises first oxygen-eliminating device and second oxygen-eliminating device.

In said first oxygen-eliminating device, said the 3rd drain tank and the 4th drain tank pass through three pipeline connections in said second oxygen-eliminating device through four pipeline connections for said first drain tank and second drain tank.

The present invention can reclaim a large amount of clean pure hot water working medium, and water temperature is high, need not just can directly send in addition recycle of boiler through Water Treatment, thereby reduces production costs, and reaches energy saving purposes, has realized energy-saving and emission-reduction effectively.

Description of drawings

Utilize accompanying drawing that the present invention is further specified, but the content in the accompanying drawing does not constitute any restriction of the present invention.

Fig. 1 is the system schematic of an embodiment of papermaking condensate return system of the present invention.

The specific embodiment

In conjunction with following examples the present invention is described further.

An embodiment of papermaking condensate return system of the present invention is as shown in Figure 1, comprises the female pipe of the female pipe of the female pipe of condensate first backwater 11, condensate second backwater 12, condensate the 3rd backwater 13, drain tank, drainage pump 3 and oxygen-eliminating device; The female pipe of said condensate first backwater 11, the female pipe 12 of condensate second backwater and the female pipe 13 of condensate the 3rd backwater are communicated in said drain tank, and said drain tank is communicated in said drainage pump 3 through valve, and said drainage pump 3 is communicated in said oxygen-eliminating device through valve.

Said drain tank comprises first drain tank 21, second drain tank 22, the 3rd drain tank 23 and the 4th drain tank 24.

The female pipe 11 of said condensate first backwater is communicated in first drain tank 21, the 3rd drain tank 23 and the 4th drain tank 24 respectively; The female pipe 12 of condensate second backwater is communicated in first drain tank 21, second drain tank 22, the 3rd drain tank 23 and the 4th drain tank 24 respectively, and the female pipe 13 of condensate the 3rd backwater is communicated in second drain tank 22, the 3rd drain tank 23 and the 4th drain tank 24 respectively.

Said oxygen-eliminating device comprises first oxygen-eliminating device 41 and second oxygen-eliminating device 42.

In said first oxygen-eliminating device 41, said the 3rd drain tank 23 and the 4th drain tank 24 pass through three pipeline connections in said second oxygen-eliminating device 42 through four pipeline connections for said first drain tank 21 and second drain tank 22.

Should be noted that at last; Above embodiment only is used to technical scheme of the present invention is described but not to the restriction of protection domain of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.

Claims (1)

1. the papermaking condensate return system is characterized in that: comprise the female pipe of condensate first backwater, the female pipe of condensate second backwater, the female pipe of condensate the 3rd backwater, drain tank, drainage pump and oxygen-eliminating device; The female pipe of said condensate first backwater, the female pipe of condensate second backwater and the female pipe of condensate the 3rd backwater are communicated in said drain tank, and said drain tank is communicated in said drainage pump through valve, and said drainage pump is communicated in said oxygen-eliminating device through valve;

Said drain tank comprises first drain tank, second drain tank, the 3rd drain tank and the 4th drain tank;

The female pipe of said condensate first backwater is communicated in first drain tank, the 3rd drain tank and the 4th drain tank respectively; The female pipe of condensate second backwater is communicated in first drain tank, second drain tank, the 3rd drain tank and the 4th drain tank respectively, and the female pipe of condensate the 3rd backwater is communicated in second drain tank, the 3rd drain tank and the 4th drain tank respectively;

Said oxygen-eliminating device comprises first oxygen-eliminating device and second oxygen-eliminating device;

In said first oxygen-eliminating device, said the 3rd drain tank and the 4th drain tank pass through three pipeline connections in said second oxygen-eliminating device through four pipeline connections for said first drain tank and second drain tank.

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