CN2401842Y - Fire-pipe type gas heating apparatus - Google Patents

Abstract

The utility model relates to a fire-pipe type gas heating apparatus. The apparatus comprises a casing body 1, a secondary heating water tank 8 and a sealing disk 3. The casing body 1 is provided with a water inlet 5, and the secondary heating water tank 8 is provided with a water outlet 6. The utility model is characterized in that the casing body 1 is communicated with the secondary heating water tank 8 by a connecting pipe 4, and a secondary combustion chamber 9 is arranged between the sealing disk 3 on the upper part of the casing body 1 and the secondary heating water tank 8. The position of the secondary combustion chamber 9 opposite to a communicating pipe 4 is provided with a flue 7. The utility model has the advantages of large heat conducting area and higher thermal efficiency for heat conduction with a fire pipe. The utility model avoids water channel blockage.

Description

A kind of fire-tube type gas-heating device

The utility model relates to heating plant, particularly is the fire-tube type gas-heating device of heating thermal source with the gaseous fuel.

Gas-heating device in the prior art is the waterpipe type structure mostly, (is that recirculated water is in pipe, the be heated version of hot gas outside pipe) have heating comparatively fast, characteristics such as clean hygiene, but existing water pipe easily stops up, heating surface area is less, the deficiency that gas consumption is bigger.In order to overcome this deficiency, the purpose of this utility model has been proposed.

The purpose of this utility model is in order to overcome the deficiency of above-mentioned existence, a kind of fire-tube type gas-heating device to be provided.

The purpose of this utility model realizes according to structure described below, this device comprises housing 1, post bake water tank 8, envelope dish 3, have water inlet 5 on the housing 1, have delivery port 6 on the post bake water tank 8, it is characterized in that being communicated with by tube connector 4 between housing 1 and the post bake water tank 8, have a secondary combustion chamber 9 between the envelope dish 3 on the top of housing 1 and the post bake water tank 8, have flue 7 with respect to the position of communicating pipe 4 at secondary combustion chamber 9.Above structure has promptly realized the purpose of this utility model.

The utility model has the advantages that fire tube conducts heat, (hot gas in pipe, the be heated version of recirculated water outside pipe) heat transfer area is bigger, the thermal efficiency is higher, has adopted the version of fire tube, and water is in the space of housing and envelope dish formation, therefore, avoided the water channel obstruction effectively.

Provide description of drawings below, accompanying drawing 1 is the structure cutaway view of this device, and accompanying drawing 2 is A-A profiles of Fig. 1.The meaning of each numbering in the accompanying drawings is: 1, housing, 2, fire tube, 3, the envelope dish, 4, tube connector, 5, water inlet, 6, delivery port, 7, flue, 8, the post bake water tank, 9, secondary combustion chamber.

Below in conjunction with accompanying drawing, describe structure of the present utility model and use in detail, with reference to accompanying drawing, this kind fire-tube type gas-heating device, mainly comprise housing 1, post bake water tank 8, envelope dish 3, on housing 1, has water inlet 5, have delivery port 6 on the post bake water tank 8, be communicated with by tube connector 4 between housing 1 and the post bake water tank 8, have a secondary combustion chamber 9 between the envelope dish 3 on the top of housing 1 and the post bake water tank 8, two envelope dishes 3 in the housing 1 will be spaced from each other between fire tube 2 and the housing, make outer wall, envelope dish and the housing of fire tube constitute water cavity.This water cavity is interconnected with post bake water tank 8 by water inlet 5 delivery ports 6 and tube connector 4, forms the main body of water circulation and heat interaction.After cold water entered this water cavity through water inlet 5, process tube connector 4 was to post bake water tank 8, to delivery port 6.Because the outer wall of fire tube and the space between housing and the envelope dish are much larger than the space of fire tube inwall, it is bigger that the radius of curvature between the inside and outside wall of fire tube also differs, and therefore is difficult for producing obstructions such as incrustation scale.Water inlet is connected heat abstractor with delivery port, constitutes the heating installation heating system.Has flue 7 at secondary combustion chamber 9 with respect to the position of communicating pipe 4.At lower part of frame device gas burner (burner).When lighting gas burner, the envelope dish 3 of flame elder generation heated shell 1 bottom, through fire tube 2, upwards enter into secondary combustion chamber 9, completing combustion herein, and the post bake water tank that forms housing 1 top heats, the flue gas after the burning, by be opened in communicating pipes 4 opposite position flue 7 discharge.In actual applications, the outside of this device, (being the outside of housing and post bake water tank) is provided with an external thermal insulation, draws smokejack, flue gas discharged outdoor.

Claims (1)

1, a kind of fire-tube type gas-heating device, this device comprises housing 1, post bake water tank 8, envelope dish 3, have water inlet 5 on the housing 1, have delivery port 6 on the post bake water tank 8, it is characterized in that being communicated with by tube connector 4 between housing 1 and the post bake water tank 8, have a secondary combustion chamber 9 between the envelope dish 3 on the top of housing 1 and the post bake water tank 8, have flue 7 with respect to the position of communicating pipe 4 at secondary combustion chamber 9.

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