CN2539904Y

CN2539904Y - Hot water reverse-flow device for steam boiler

Info

Publication number: CN2539904Y
Application number: CN 02231350
Authority: CN
Inventors: 薛植深
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-27
Filing date: 2002-04-27
Publication date: 2003-03-12
Anticipated expiration: 2012-04-27

Abstract

The utility model relates to a hot water reverse-flow device for steam boiler, which is designed for the steam boiler with low evaporation rate, and the utility model belongs to the boiler auxiliary equipment manufacturing technique field. The utility model comprises a water tank 1, a hot water reverse-flow ring-shaped pipe 2 is arranged in the water tank 1, a water level control ball cock 3, an outflow tube connector 7, a blow-off pipe 8, etc. The rest gas and hot water discharged from the boiler flow into the ring-shaped pipe 2 through the interface 5 of the hot water reverse-flow ring-shaped pipe, and exchanged with the cold water in the tank through a winding pipe 1, and the mixed hot water flows into the boiler through the outflow tube connector 7, and the mixed water is reused. The condition that the prior steam boiler with low evaporation rate is not equipped with the hot water reverse-flow device is changed, the utility model has the advantages that the heat operating factor is improved, the production cost is decreased, and the utility model has a broad prospect of wide application.

Description

Steam boiler hot water reflux

The utility model is the steam boiler hot water reflux that aims at the lower steam boiler design of evaporation capacity, belongs to the boiler fixture production technical field.

At present, the low evaporation capacity steam boiler of great majority is at the surplus vapour and the hot water that produce and provide steam to be discharged after gas utilization unit uses, and promptly condensed water all is direct discharging, fails to recycle, and has caused energy waste.

The purpose of this utility model is for low evaporation capacity steam boiler, especially evaporation capacity are the steam boiler of 0.04-0.5t/h, and a kind of steam boiler hot water reflux is provided, reclaim surplus vapour and hot water, to make full use of surplus vapour and hot water, improve the heat energy utilization rate, reduce production costs.

For reaching the purpose of this utility model, the technical solution adopted in the utility model is: steam boiler hot water reflux, include water tank 1, architectural feature is installing hot water backflow ring pipe 2, a level controling floating ball valve 3 in the water tank 1, water tank is provided with hot water backflow ring pipe interface 5, ball-cock assembly interface 4, overflow pipe joint 6, casing inferior horn set out water pipe head 7, and blow-off connection 8 is offered in the bottom.

The utility model is described in further detail below in conjunction with accompanying drawing and workflow.

Fig. 1 is the utility model front view.

Fig. 2 is the left view of Fig. 1.

The utility model before use, earlier running water pipe is connected ball-cock assembly interface 4, allow the running water be that cold water enters water tank, connect hot water backflow ring pipe interface 5 with tail vapour (condensed water) pipe of steaming plant, radiator drain joint 7 is connected with heat-exchanger pump, and heat-exchanger pump is connected in the middle of the water inlet pipe of boiler by pipeline again.

The utility model workflow is: make running water enter water tank earlier, start boiler work, boiler produces steam and supplies with the gas utilization unit use, surplus vapour, hot water after using enter hot water backflow ring pipe 2 from tail gas pipe, surplus vapour hot water from top to bottom, carry out heat exchange by this pipe from bottom to up again after, go out in water tank, mix with water in water tank again, heated water in water tank like this, make the cold water of water tank become the very high hot water of temperature.High-temperature-hot-water is sent boiler by water tank outlet pipe connection 7 to by heat-exchanger pump, makes boiler feedwater become the hot water of high temperature, has improved the effect of boiler greatly.The purpose that hot water backflow ring pipe 2 is made tortuous annular is for the stroke of extend surplus vapour and hot water, makes it to strengthen heat exchange.The purpose that water tank is provided with ball-cock assembly 3 is the water level of control water tank.When water level reached setting height, ball-cock assembly was closed into water automatically.The purpose that overflow pipe joint 6 is set is outside the water that will exceed design water level overflows.Delivery port pipe joint 7 has a spot of distance apart from bottom half, and purpose is to prevent that the foul that precipitates from entering heat-exchanger pump.At water tank bottom sewage draining exit pipe joint 8 is set, purpose is blowdown when cleaning water tank, makes roof tank water quality clean.

The utility model has changed the situation that at present low evaporation capacity steam boiler is unworthy of the hot water reflux.By having improved heat energy utilization behind the configuration hot water reflux, reduced production cost, have the bright prospects of generally promoting the use of.

Claims

1, a kind of steam boiler hot water reflux, include water tank (1), it is characterized in that being equipped with in the water tank (1) hot water backflow ring pipe (2), level controling floating ball valve (3), water tank is provided with backflow ring pipe interface (5), ball-cock assembly interface (4), overflow pipe joint (6), water tank inferior horn and sets out water pipe head (7), and blow-off connection (8) is offered in the bottom.