CN201715878U

CN201715878U - Novel steam heating and condensate recovery system

Info

Publication number: CN201715878U
Application number: CN2009202674925U
Authority: CN
Inventors: 袁建平; 袁晓易
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-02
Filing date: 2009-11-02
Publication date: 2011-01-19
Anticipated expiration: 2019-11-02

Abstract

The utility model relates to a novel steam heating and condensate recovery system, the steam of which is utilized according to the pressure grade and a dead steam pipe network with lower pressure is arranged; all steam heat exchangers and pipelines adopt drain valves for draining condensate, a steam-water separator is needed for draining the steam of the condensate into a dead steam pipe and the liquid of the condensate into a water return manifold; a dead steam heat exchanger and a pipeline adopt a pneumatic pressure pump to convey the condensate to the water return manifold; automatic steam discharge devices are arranged along the water return manifold and discharge the steam generated in the water return pipeline into the dead steam pipeline; the water return manifold in a collection station first enters a first-stage steam-water separator, drains the steam into the dead steam pipe and the liquid into a second-stage steam-water separator; the steam drained by the second-stage steam-water separator is pressurized by a steam jet pump and recovered into the dead steam pipe, and the water is pressurized by the pump and conveyed to a condensated water treatment unit; and excessive dead steam can be pressurized for use by the steam jet pump according to the balance situation of steam. The novel steam heating and condensate recovery system realizes normal water drainage and complete recovery of condensated water and flash steam of a steam heating system of a factory.

Description

A kind of novel steam heating and lime set recovery system thereof

Affiliated technical field

The utility model relates to heat supply of a kind of economizing type factory steam and lime set recovery system thereof, especially can be fully, safe handling steam thermal energy and reclaim its lime set and flash steam.

Background technology

Known factory steam heat supply and lime set recovery system thereof generally have two kinds, a kind of is that the classification of steam pressing force is used, heat transmission equipment lime set single tube is delivered to open slot and is reclaimed, flash steam discharges sky, its advantage is that each heat transmission equipment condensate drain does not disturb mutually, the condensate drain back pressure is low, but the flash steam waste is bigger, and pipeline is more.Another kind is that the exhaust steam system is arranged, and backwater shared return main reclaim to open slot, and the condensate drain equipment that the lime set temperature is higher than the exhaust steam temperature has water separator (liquid side block steam and drain water), its flash steam is entered the exhaust steam pipe network reclaim, and liquid enters lime set and reclaims house steward; The hot user's condensate drain of exhaust steam is directly incorporated the return main into, and steam water interface is in the feeder flash distillation in the return main, and flash steam discharges sky.Its main feature is that main vapour heat transmission equipment condensate drain back pressure is higher than exhaust steam pressure, and exhaust steam heat transmission equipment condensate drain pressure is higher than access point return main pressure, and the exhaust steam ductwork pressure must be greater than the female pipe of backwater maximum pressure, and the female pipe of backwater caliber is very big.It mainly has problems is when leaking steam in the generations such as drain valve or the return main is not gone in the separating high-temp water breakthrough, be easy to make return main's pressure to be higher than normal pressure, and generation water hammer, water separator can't normally be moved, even lime set takes place directly scurry into the exhaust steam pipe network, threaten pipe network normally to move; The main vapour user of exhaust steam user and part condensate drain is not smooth, is forced to regard to ground-to-air discharging, and gathering station inner opening groove flash steam can't use emptying because of pressure is low, and water return pipeline washes away at a high speed because of steam water interface, and elbow etc. lost efficacy frequent.

Summary of the invention

Be obstructed the water attack problem takes place in order to overcome the existing a large amount of lime sets of factory steam heating system, flash steam waste and pipeline, heat exchanger condensate drain, the utility model provides a kind of novel steam heating and lime set recovery system thereof, not only guarantee normal, the safe condensate drain of vapour systems at different levels and heat exchanger, reclaimed its lime set and flash steam again fully economically.

The technical scheme that its technical problem that solves the utility model adopts is: the steam classification is used, and heating system is provided with the lower exhaust steam pipe network of pressure, and rich exhaust steam is used by the steam jet pump pressurization; Each vapor heat exchanger and pipeline adopt the drain valve condensate drain, and lime set needs through water separator vapour to be entered exhaust steam, and liquid enters the return main; Exhaust steam heat exchanger and pipeline condensate drain adopt pneumatic force (forcing) pump to deliver to the return main; The return main arranges automatic steam exhaust device on the way, and the steam that produces in the water return pipeline is entered the exhaust steam pipeline; The return main is introduced into the one-level water separator at gathering station, and vapour is entered exhaust steam, and liquid enters the secondary water separator, and secondary water separator steam discharge is recycled to exhaust steam by the steam jet pump pressurization, and water is delivered to condensate-scavenging installation through the pump pressurization.

The beneficial effects of the utility model are, the return main increases water separator (liquid side resistance vapour) before entering steam-water separator, and steam discharge inserts the exhaust steam pipeline, and draining inserts steam-water separator, make the return main on the way pressure a little more than exhaust steam pressure.Increase automatic exhaust device on the way the return main, will leak steam in the drain valve etc. and flash steam in time enters the exhaust steam pipeline, thoroughly the steam problem that builds the pressure in the resolution system water return pipeline.Exhaust steam heat exchanger and pipeline condensate drain burst utilize pneumatic force (forcing) pump pressurization to send into the return main.Rich exhaust steam utilizes the steam jet pump pressure-raising to use according to the balance of steam situation.Not only guaranteed the normal condensate drain of vapour systems at different levels and heat exchanger, reclaimed its lime set and flash steam again fully economically, energy-saving effect is outstanding.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model process chart

The specific embodiment

Fig. 1 is the utility model specific embodiment process chart.Its steam classification is used, and is provided with the lower exhaust steam pipe network 3 of pressure, and each vapor heat exchanger 8 and

pipeline

1,2,3 adopt drain valve 9 condensate drains, and lime set needs through water separator 10 (exhaust region blocks water, discharge opeing side resistance vapour) vapour to be entered exhaust steam, and liquid enters return main 4.Exhaust steam heat exchanger and pipeline condensate drain adopt pneumatic force (forcing) pump 14 to deliver to the return main.The return main arranges automatic steam exhaust device 13 (steam discharge blocks water) on the way, and the steam that produces in the water return pipeline is entered the exhaust steam pipeline.The return main enters gathering station and enters one-level water separator 17 (discharge opeing side resistance vapour), and vapour is entered exhaust steam, and liquid enters steam-water separator 18.Steam-water separator liquid enters collecting tank 19, and steam-water separator and collecting tank steam discharge are recycled to exhaust steam by steam jet pump 15 pressurizations.Water is delivered to condensate-scavenging installation through pump 20 pressurizations through pressure condensing water conduit 5 in the collecting tank.Rich exhaust steam can adopt steam jet pump 7 or 8 pressurizations to use according to the balance of steam situation.Realized that the factory steam heating system is normally hydrophobic, condensate water and flash steam all reclaim.

Claims

1. novel steam heating and lime set recovery system thereof, it is characterized in that: the steam classification is used, and heating system is provided with the lower exhaust steam pipe network of pressure, and rich exhaust steam is used by the steam jet pump pressurization; Each vapor heat exchanger and pipeline adopt the drain valve condensate drain, and lime set needs through water separator vapour to be entered exhaust steam, and liquid enters the return main; Exhaust steam heat exchanger and pipeline condensate drain adopt pneumatic force (forcing) pump to deliver to the return main; The return main arranges automatic steam exhaust device on the way, and the steam that produces in the water return pipeline is entered the exhaust steam pipeline; The return main is introduced into the one-level water separator at gathering station, and vapour is entered exhaust steam, and liquid enters the secondary water separator, and secondary water separator steam discharge is recycled to exhaust steam by the steam jet pump pressurization, and water is delivered to condensate-scavenging installation through the pump pressurization.