CN2342309Y

CN2342309Y - Atmospheric water heating boiler

Info

Publication number: CN2342309Y
Application number: CN 98221705
Authority: CN
Inventors: 李宝善; 李涛
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-30
Filing date: 1998-06-30
Publication date: 1999-10-06
Anticipated expiration: 2008-06-30

Abstract

The utility model discloses an atmospheric hot water boiler, comprising a chimney which is provided with a water sleeve, the jacket of a boiler body, a water inlet pipe, boiler strips, and a forced ventilation boiler bottom chamber. The upper part of a boiler hearth is hung with the boiler shell container of the boiler hearth. The boiler shell container and the boiler hearth form a circular smoke through passage. The smoke through passage or the top of the boiler shell container is provided with two radial or axial communicating pipes at least. The boiler shell container is communicated with the jacket of the boiler body through the two radial or axial communicating pipes. The interior of the boiler shell container is provided with a plurality of heat pipes. The heat absorption ends of the heat pipes extend out of the bottom board of the boiler shell container, and the heat absorption ends of the heat pipes are positioned on the combustion high-temperature zone of the boiler hearth. The hot discharge ends of the heat pipes are positioned in the boiler shell container to conduct the heat for the water medium. The utility model has the advantages of reasonable structure, high heat-transfer efficiency of the boiler hearth, full heat energy utilization and fast temperature rising. The utility model is suitable for drinking water, washing and heating engineering of the large and medium heating and heat supply system.

Description

Normal-pressure hot-water boiler

The utility model relates to the improvement of domestic hot water stove, normal-pressure hot-water boiler especially, and it belongs to the boiler field of mechanical technique.

Traditional domestic hot water stove all adopts the radiant heat transfer mode, improves heat transfer efficiency to increase heating surface area as much as possible or to increase secondary wind raising burning dynamics, accelerates water temperature and promotes rapidly, reaches drinking water, has a bath the purpose of the usefulness of heating.But because the restriction of heat transfer type, the thermal efficiency of these water heaters is still lower, and the highest only reaches 50%.And the heat transfer type of these water heaters is single, and volume is bigger, and equipment investment is too high, wastes energy in the use.

The purpose of this utility model provides a kind of novel normal-pressure hot-water boiler, and this stove adopts two kinds of heat transfer types, based on heat pipe for thermal conductivity, radiant heat transfer is auxilliary, improves chamber structure, to improve heat transfer efficiency, accelerate water temperature and promote speed, energy savings reaches the effect of multi-use.

Task of the present utility model has following technical scheme to finish, developed a kind of normal-pressure hot-water boiler, it comprises: the chimney that has water jacket, the body of heater chuck that is communicated with this water jacket, be located at the water inlet pipe of this chuck bottom, be located at the fire bars and the forced air draft oven bottom compartment of burner hearth bottom, unsettled in the upper furnace chamber shell courage in the thorax is set, form annular smoke uptake between this courage and the burner hearth chamber wall, at least be provided with two radial communication pipes and this courage is communicated with the body of heater chuck is integral in this flue, this courage top also is provided with at least two axial communicating pipes this courage to be communicated with chimney water jacket and is integral.

This normal-pressure hot-water boiler, shell courage in the described thorax is equipped with the orderly heat pipe of several arrangements in its courage, and the heat absorbing end of this heat pipe is stretched out the base plate of this courage, is positioned at the combustion high temperature district of burner hearth, and the length that this heat pipe is installed in this courage is 1/2～2/3 of its total length.

This normal-pressure hot-water boiler, shell courage in the described thorax, its profile can be the flat-floored cylinder table bodily form, also can be the cylinder table bodily form of spill segment type base plate, can also be the streamline ellipsoid bodily form.

This normal-pressure hot-water boiler, shell courage in the described thorax axially is evenly equipped with the orderly heat pipe of several arrangements on its base plate, and the formation of arranging of this heat pipe can be the formation of all pipes of the uniform arrangement of concentric circumferences, also can be the formation of all pipes of uniform arrangement on involute.

The described annular smoke uptake of this normal-pressure hot-water boiler, the annular radial sectional area of its flue can be the burner hearth radial section long-pending 1/5～1/2.

Hot-water boiler of the present utility model, its advantage is: because shell courage and employing heat pipe advanced technology in the thorax are set in burner hearth, cooperate the formation of arranging of heat pipe to select, make this stove both keep traditional heat radiation mode, increased the high duty heat transfer mode of heat pipe for thermal conductivity again, therefore this boiler has rational in infrastructurely, and volume is little, the advantage that efficient is high.Compare with the traditional water heater with capacity, the volume of this boiler reduces 3/5, and the thermal efficiency has improved 30%.Because this boiler is taked rational flue design, makes fume afterheat make full use of, and is equipped with burning briquette again, can solve the problem of smoke contamination air.

Hot-water boiler of the present utility model, the embodiment accompanying drawings is as follows:

Fig. 1, be the structure cutaway view of normal-pressure hot-water boiler.

Fig. 2, be the cross-sectional figure of chamber structure (the A-A cutaway view of Fig. 1) of normal-pressure hot-water boiler.

Make a normal-pressure hot-water boiler, referring to Fig. 1,2, it comprises: have the chimney 1 of water jacket 2, with the body of heater chuck 3 that this water jacket 2 is communicated with, be located at the water inlet pipe 4 of these chuck 3 bottoms and observe fire door 16, be located at the fire bars 5 and the forced ventilation furnace bottom chamber 6 of burner hearth 7 bottoms.Shell courage 8 in the thorax is set in that burner hearth 7 upper chamber are unsettled.Form annular smoke uptake 9 between this courage 8 and the burner hearth 7 chamber walls.Being provided with four radial communication pipes 10 in this flue 9 is communicated with this courage 8 and is integral with burner hearth chuck 3.These courage 8 tops also are provided with four axial communicating pipes 11 this courage 8 to be communicated with body of heater chuck 3 and are integral.This radial and axial communicating pipe 10,11 is that aqueous medium moves towards pipe, is again the outstanding solid pipe of support reinforcing of this courage 8.Be equipped with 30～90 in this courage 8 and arrange orderly heat pipe 13,14 (generally on needing the hot water amount to decide concrete heat pipe number).The heat absorbing end 13 of this heat pipe 13,14 is stretched out the base plate 12 of this courage 8 and is positioned at the combustion high temperature district of burner hearth.The length that this heat pipe 13,14 is installed in this courage 8 is advisable for 2/3 of its total length, and promptly the length of its release end of heat 14 is 2/3 of this heat pipe length.This heat pipe 13,14 be φ 20～25mm * 2 seamless steel pipe, its length is at the flow water heat pipe of 300～600mm.The arrange formation of this heat pipe 13,14 on the base plate 12 of this courage 8 is the formation of all pipes of the uniform arrangement of a kind of concentric circumferences, as shown in Figure 2.Also can be with the formation (not drawing among the figure) of all pipes of the uniform arrangement of involute on base plate 12.

Shell courage 8 in the designed thorax of this hot-water boiler, its profile can be the cylinder table bodily form of flat underside 12, as shown in Figure 1.This courage 8 also can be that base plate 12 is the cylinder table bodily form of segment type spill base plate.On the sphere of this base plate 12, equally some of axial heat pipes can be set.This courage 8 can also be the housing of the streamline ellipsoid bodily form.The annular radial sectional area of the annular smoke uptake 9 between this courage 8 and the burner hearth 7 be burner hearth 7 radial sections long-pending 1/4, wash away this courage 8 shell walls to impel burning fume, strengthen heat radiation and heat pipe for thermal conductivity degree, improve the thermal efficiency.

In order further to reduce exhaust gas temperature, chimney 1 can be passed in the high-order storage tank, to make full use of fume afterheat.The water jacket 2 of this chimney is provided with hot-water outlet pipe's mouth 15 and is used to heating system heat supply water, or supplies to have a bath, or supplying drinking water.Use this hot-water boiler, the result is after tested: will add 1.5m in the system ³The cold water that temperature is 13 ℃ is lighted a fire in this boiler, and the coolant-temperature gage of hot-water outlet pipe's mouth 15 is 20 ℃ after 20 minutes; Leaving water temperature is 48 ℃ after 30 minutes; Leaving water temperature is 62 ℃ after 40 minutes; Leaving water temperature is 90 ℃ after 50 minutes; Leaving water temperature is 100 ℃ after 60 minutes.

Claims

1, a kind of normal-pressure hot-water boiler, it comprises: the chimney that has water jacket, the body of heater chuck that is communicated with this water jacket, be located at the water inlet pipe of this chuck bottom, be located at the fire bars and the forced air draft oven bottom compartment of burner hearth bottom, it is characterized in that: unsettled in the upper furnace chamber shell courage in the thorax is set, form annular smoke uptake between this courage and the burner hearth chamber wall, at least be provided with two radial communication pipes and this courage is communicated with the body of heater chuck is integral in this flue, this courage top also is provided with at least two axial communicating pipes this courage to be communicated with chimney water jacket and is integral.

2, according to the described normal-pressure hot-water boiler of claim 1, be characterised in that on it: shell courage in the described thorax, the orderly heat pipe of several arrangements is installed in its courage, the heat absorbing end of this heat pipe is stretched out the base plate of this courage, be positioned at the combustion high temperature district of burner hearth, the length that this heat pipe is installed in this courage is 1/2～2/3 of its total length.

3, according to claim 1 or 2 described normal-pressure hot-water boilers, it is characterized in that: shell courage in the described thorax, its profile can be the flat-floored cylinder table bodily forms, also can be the cylinder table bodily forms of spill segment type base plate, can also be the streamline ellipsoid bodily forms.

4, according to claim 1 or 2 described normal-pressure hot-water boilers, it is characterized in that: shell courage in the described thorax, axially be evenly equipped with the orderly heat pipe of several arrangements on its base plate, the formation of arranging of this heat pipe can be the formation of all pipes of the uniform arrangement of concentric circumferences, also can be the formation of all pipes of uniform arrangement on involute.

5, according to the described normal-pressure hot-water boiler of claim 1, it is characterized in that: described annular smoke uptake, the annular radial sectional area of its flue can be the burner hearth radial section long-pending 1/5～1/2.