CN104913483A - Fuel gas and electric heating dual-use vacuum furnace - Google Patents

Abstract

A fuel gas and electric heating dual-use vacuum furnace comprises a furnace body that is constituted of a cylinder body, a front pipe plate and a back pipe plate and that is capable of maintaining vacuum degree, wherein a fuel gas furnace chamber is axially set in the middle of the furnace body; the front end of the furnace chamber is provided with a furnace chamber outlet and a front smoke chamber surrounding the furnace chamber and the back end thereof is provided with a combustion return chamber and a back smoke chamber surrounding the combustion return chamber; the back smoke chamber is communicated with a vertically set chimney; an electric heating pipe is set inside the furnace body and the electric heating pipe is fixed ans sealed inside the furnace body through a pipe base; medium soft water after being processed is washed into the furnace body; the upper portion of the furnace body is provided with a heat exchanger; the front smoke chamber and a pipe cover outside the electric heating pipe base are respectively connected to the front pipe plate in a welded way and the front smoke chamber and the pipe cover outside the electric heating pipe base is outwardly projected to the front of the furnace body; a smoke pipe is horizontally connected in the middle of the furnace body at the outside of the furnace chamber; and two ends of the smoke pipe and the electric heating pipe are respectively connected to the front pipe plate and the back pipe plate in a welded way. According to the invention, the vacuum furnace has the characteristics that the structure is reasonable and compact; the use is convenient and reliable; the area of a boiler chamber can be reduced; the equipment cost is reduced; the use expenditure is lowered; and the heat efficiency and the service life of the vacuum furnace are improved.

Description

A kind of combustion gas and electrical heating dual-purpose vacuum stove

Technical field

What the present invention relates to is a kind of combustion gas and electrical heating dual-purpose vacuum stove, especially utilizes the dual-purpose vacuum stove of wind electric & gas, belongs to energy heating equipment technical field.

Background technology

At present, traditional vacuum hot water unit is all the heating equipment of the single energy, or fuel oil or combustion gas, or electricity consumption is directly heated; This heating equipment is when running into certain energy starved, and corresponding equipment just cannot use.

Summary of the invention

The object of the invention is to the deficiency overcoming prior art existence, and provide a kind of rational in infrastructure, compact, easy to use and reliable, the area of boiler room can be reduced, reduce equipment cost, reduce cost of use, improve the thermal efficiency of vacuum drying oven and the combustion gas in service life and electrical heating dual-purpose vacuum stove.

The object of the invention is to have come by following technical solution, a kind of combustion gas and electrical heating dual-purpose vacuum stove, it comprises one by cylindrical shell, front tube sheet and back tube sheet form, the body of heater of vacuum can be kept, the jackshaft of body of heater is to being provided with gas furnace hearth, the front end of this burner hearth is provided with furnace outlet and the front smoke chamber around furnace outlet, rear end is provided with return combustion chamber and the rear smoke chamber around return combustion chamber, described rear smoke chamber is communicated with vertically arranged chimney, electrothermal tube is furnished with in described body of heater, and described electrothermal tube passes through base fixing seal in body of heater, medium soft water is after treatment poured in described body of heater, described upper of furnace body is provided with heat exchanger.

The present invention is preferably: the shroud outside described front smoke chamber and electric heating base be all weldingly connected with front tube sheet and evagination before body of heater; Be horizontally connected with smoke pipe in the body of heater of described burner hearth periphery, and the two ends of described smoke pipe and electrothermal tube are welded to connect with front tube sheet and back tube sheet respectively.

The present invention is preferably: be provided with wet back splint layer in the outside of return combustion chamber by supporting short circuit; Described burner hearth is single-ended to be welded on front tube sheet, and the cylindrical shell of furnace body outer wall is welded with heat exchanger, and described rear smoke chamber, return combustion chamber are soldered respectively at back tube sheet.

The present invention is the improvement done on the basis of existing vacuum drying oven, and electrothermal tube is arranged in its tube sheet outer ring before and after common vacuum drying oven, and electrothermal tube in body of heater, keeps the vacuum in body of heater by base fixing seal simultaneously.In the process used, preferentially use electric energy, if when electric power is not enough, electrical control can brake switching, use natural gas, burner is started working.WATER AS FLOW MEDIUM due to vacuum drying oven is through the disposable soft water be filled with in stove after process, in use neither increases and does not also reduce, body part non flouling behaviour this, improve electricity, the thermal efficiency of gas dual-purpose vacuum stove and service life.

The present invention has rational in infrastructure, compact, easy to use and reliable, can reduce the area of boiler room, reduces equipment cost, reduces cost of use, the features such as the thermal efficiency of raising vacuum drying oven and service life.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, a kind of combustion gas of the present invention and electrical heating dual-purpose vacuum stove, it comprises one by cylindrical shell 1, front tube sheet 3 and back tube sheet 16 form, the body of heater of vacuum can be kept, the jackshaft of body of heater is to being provided with gas furnace hearth 4, the front end of this burner hearth 4 is provided with furnace outlet 5 and the front smoke chamber 2 around furnace outlet, rear end is provided with return combustion chamber 14 and the rear smoke chamber 12 around return combustion chamber, described rear smoke chamber 12 is communicated with vertically arranged chimney 11, electrothermal tube 8 is furnished with in described body of heater, and described electrothermal tube 8 passes through base fixing seal in body of heater, medium soft water 10 is after treatment filled with in described body of heater, described upper of furnace body is provided with heat exchanger 9.

Shown in figure, the preferred embodiment of the invention is: the shroud 7 outside described front smoke chamber 2 and electric heating base be all weldingly connected with front tube sheet 3 and evagination before body of heater; Be horizontally connected with smoke pipe 6 in the body of heater of described burner hearth 4 periphery, and the two ends of described smoke pipe 6 and electrothermal tube 8 are welded to connect with front tube sheet 3 and back tube sheet 16 respectively.

The further preferred embodiment of the present invention is: be provided with wet back splint layer 13 in the outside of return combustion chamber 14 by supporting short circuit 15; Described burner hearth 4 is single-ended to be welded on front tube sheet 3, and the cylindrical shell 1 of furnace body outer wall is welded with heat exchanger 9, and described rear smoke chamber 12, return combustion chamber 14 are soldered with back tube sheet 16 respectively.

The fuel that the Northwest's heating boiler generally uses is natural gas and coal, because the pollution of coal is very large, progressively transform now, natural gas is main fuel, a kind of free energy-wind energy is also had in Xinjiang, the wind-powered electricity generation clean environment firendly that wind energy sends, cost are low, but the impact of wind-powered electricity generation climate is larger, electricity is not had without wind, therefore wind-powered electricity generation is difficult to be incorporated to national grid, can only use on the spot, so can adopt electrovacuum boiler in the area of wind-powered electricity generation prosperity, natural gas is auxiliary to be made for overcoming wind-powered electricity generation deficiency.Electricity, gas dual-purpose vacuum stove can reduce the area of boiler room, reduce equipment cost, reduce cost of use.

Claims (3)

1. a combustion gas and electrical heating dual-purpose vacuum stove, it comprises one by cylindrical shell, front tube sheet and back tube sheet form, the body of heater of vacuum can be kept, the jackshaft of body of heater is to being provided with gas furnace hearth, the front end of this burner hearth is provided with furnace outlet and the front smoke chamber around furnace outlet, rear end is provided with return combustion chamber and the rear smoke chamber around return combustion chamber, described rear smoke chamber is communicated with vertically arranged chimney, it is characterized in that being furnished with electrothermal tube in described body of heater, and described electrothermal tube passes through base fixing seal in body of heater, medium soft water is after treatment poured in described body of heater, described upper of furnace body is provided with heat exchanger.

2. combustion gas according to claim 1 and electrical heating dual-purpose vacuum stove, the shroud that it is characterized in that outside described front smoke chamber and electric heating base be all weldingly connected with front tube sheet and evagination before body of heater; Be horizontally connected with smoke pipe in the body of heater of described burner hearth periphery, and the two ends of described smoke pipe and electrothermal tube are welded to connect with front tube sheet and back tube sheet respectively.

3. combustion gas according to claim 1 and 2 and electrical heating dual-purpose vacuum stove, is characterized in that being provided with wet back splint layer in the outside of return combustion chamber by supporting short circuit; Described burner hearth is single-ended to be welded on front tube sheet, and the cylindrical shell of furnace body outer wall is welded with heat exchanger, and described rear smoke chamber, return combustion chamber are soldered respectively at back tube sheet.