CN209013458U - The normal-pressure hot-water boiler of biomass-burning - Google Patents

Abstract

The utility model relates to a kind of normal-pressure hot-water boilers of biomass-burning, including combustion stove and rectangle heating water tank；Rectangle heating water tank is laterally disposed in combustion stove on one side, also designs a water supply tank in the top of rectangle heating water tank, the outlet pipe of water supply tank connects the water inlet interface of above-mentioned rectangle heating water tank.The heat that exchanges of the big temperature difference preferentially occurs with the position of the highest temperature in more backhaul fire tube heat exchangers up and down using cold water for the utility model, and heat exchange efficiency is high, can also improve the service life of equipment.

Description

The normal-pressure hot-water boiler of biomass-burning

Technical field

The utility model belongs to utilization of regenerative energy equipment technical field, and in particular to a kind of atmospheric hot-water of biomass-burning Boiler.

Background technique

As coal, petroleum, rising steadily for Gas Prices decline with reserves, the shortage and environmental pollution of the energy are increasingly Seriously, people begin look for the new energy to replace traditional energy.Later it has been found that biomass energy can be again as one kind The energy made profits, resource very abundant, and have the characteristics that phosphorus content is low, a large amount of two are absorbed in its growth course in addition Carbonoxide is so referred to as clean energy resource.Currently, the research and development of biomass energy is quickly, gasification, pyrolysis, liquefaction, fermentation etc. The utilization of various new technologies all achieves greater advance in succession.Attention due to national industrial policies to environmental protection, so exploitation life Biomass fuel equipment can bring fair margin of profit to many producers, and some producers are biological substance for combustion shaped fuel, not understand fully In the case where its characteristic of Chu, blindly original coal-fired or oil, the direct biomass burning shaped fuel of gas combustion apparatus, cause Combustion space, shape and the biomass molding fuel burning of combustion apparatus mismatch, boiler heating surface and biomass molding fuel Mismatch, excess air coefficient and biomass molding fuel burning mismatch, and flue gas resistance is big, cause boiler efficiency of combustion and The thermal efficiency is lower, boiler smoke original discharge concentration is high, and pollutant emission is exceeded, and complex process, high expensive.

On 04 11st, 2012 Chinese invention patent application publication number CN102410624A, disclose a kind of biomass burning Hot-water boiler, including combustion stove and elongated pot ontology；One end is laterally disposed in burning with the elongated pot ontology of semicolumn end socket Stove one side, and another end integrally connects with combustion stove；This application can using generating hot water after biomass energy direct-combustion, but due to Design, which is into water, to be entered from the top in the relatively low heating water tank space of temperature, in heating water tank by elongated pot chamber body More backhaul fire tube heat exchangers gradually heat, enter back into combustion stove more arrangement fire tube reheat, water outlet is from temperature phase To coming out at the top of the heating water tank of higher combustion stove part, no matter in terms of which end, the more backhaul fire tubes contacted with water exchange heat Device, or water after being heated contact the fire tubes of more arrangements again, and the temperature difference is always relatively small, i.e., heat exchange efficiency is not always relatively It is high.

Utility model content

The technical problems to be solved in the utility model is, in view of the drawbacks of the prior art, provides a kind of the normal of biomass-burning Hot-water boiler is pressed, which can be using hot water be generated after biomass energy direct-combustion, and heat exchange efficiency greatly improves.

The technical solution of the utility model is a kind of normal-pressure hot-water boiler of biomass-burning, including combustion stove and Rectangle heating water tank；Rectangle heating water tank is laterally disposed in combustion stove on one side, and rectangle heating water tank inner cavity is equipped with More backhaul fire tube heat exchangers up and down, the bending tubes end of more backhaul fire tube heat exchangers is communicated with combustion stove fire box up and down, row Cigarette end connects air-introduced machine to flue by smoke exhaust pipe；The appearance and rectangle heating water tank of the backhaul fire tube heat exchangers more up and down Inside constitutes a hot water heating space；The top of rectangle heating water tank by combustion stove end have one communicated with outer room into Water interface；The top of rectangle heating water tank is equipped with sewage draining exit far from the lower bottom side at combustion stove end and what is communicated with outer room goes out Water interface；A water supply tank is also designed in the top of rectangle heating water tank, the outlet pipe of water supply tank connects above-mentioned rectangle and adds The water inlet interface of boiler.

The normal-pressure hot-water boiler of the biomass-burning of the utility model thus constituted, multiple ash disposal mouths can be used for will build up on It is smoothly removed in the ashes that more backhaul fire tube heat exchangers go back to cigarette part, is able to maintain combustion system under efficient unobstructed state and runs, Securely and reliably.Using water supply tank from water inlet interface enter the cold water of boiler preferentially with the highest in more backhaul fire tube heat exchangers up and down The exchange heat of the big temperature difference occurs for the position of temperature, and the hot water re-circulation then to heat up is opposite to other temperature of rectangle heating water tank The fire tube of the backhaul up and down bottom of compared with swaps heat with fire tube again；The heating heat exchange of hot water water temperature and backhaul fire tube, temperature Difference becomes smaller time by time, finally exports hot water from the water outlet mouthpiece of lower bottom side.This heating method than documents into Water is entered from the top in the relatively low heating water tank space of temperature, in heating water tank by more backhauls of elongated pot chamber body Fire tube heat exchanger gradually heats, and the fire tube for entering back into combustion stove more arrangements reheats, and water outlet is relatively high from temperature The mode come out at the top of the heating water tank of combustion stove part, more backhaul fire tube heat exchanger heat exchange efficiencies significantly improve, meanwhile, benefit The big temperature difference preferentially occurs with the position of the highest temperature in more backhaul fire tube heat exchangers up and down with cold water exchanges heat, into fire tube Flue-gas temperature rapid decrease in heat exchanger, the flue-gas temperature for bearing back segment fire tube heat exchanger is low, advantageously reduces flue dust to fire The abrasion of pipe improves the service life of equipment.In addition, up and down flue heat exchange skill of the utility model using lateral water tank The structure of art can make water tank that capacity are made bigger without increasing the whole high of boiler according to the design requirement of heat production water Degree.The utility model is designed reasonably, device structure are compact, such as in the same way, can effectively alleviate the office of current energy shortage Face mitigates greenhouse effects.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is top view shown in FIG. 1.

Fig. 3 is left view shown in FIG. 1.

In attached drawing: 1 combustion stove；2 rectangle heating water tanks；More than about 3 backhaul fire tube heat exchangers；3 fire box；5 Smoke exhaust pipe；6 hot water heating spaces；7 water inlet interfaces；8 sewage draining exits；9 water outlet mouthpieces；10 water supply tanks；11 ash disposal mouths.

Specific embodiment

With reference to the accompanying drawing, the utility model is described in detail.

With reference to attached drawing 1-3, a kind of normal-pressure hot-water boiler of biomass-burning, including combustion stove 1 and rectangle heating water tank 2；Rectangle heating water tank 2 is laterally disposed in combustion stove 1 on one side, and 2 inner cavity of rectangle heating water tank is equipped with more backhauls up and down Fire tube heat exchanger 3, the bending tubes end of more backhaul fire tube heat exchangers 3 is communicated with combustion stove fire box 4 up and down, and smoke evacuation end passes through Smoke exhaust pipe 5 connects air-introduced machine to flue；It is characterized by: the appearance of the backhaul fire tube heat exchangers 3 more up and down adds with rectangle A hot water heating space 6 is constituted on the inside of boiler 2；The top of rectangle heating water tank 2 by 1 end of combustion stove have one with it is outer Between the water inlet interface 7 that communicates；The top of rectangle heating water tank 2 is equipped with 8 He of sewage draining exit far from the lower bottom side at 1 end of combustion stove The water outlet mouthpiece 9 communicated with outer room；A water supply tank 10 is also designed in the top of rectangle heating water tank 2, water supply tank 10 goes out Water pipe connects the water inlet interface 7 of above-mentioned rectangle heating water tank 2.

In order to improve operational efficiency, above-mentioned backhaul fire tube heat exchangers 3 more up and down in rectangle heating water tank 2 lower part it is every A turning is equipped with ash disposal mouth 11.

Claims (2)

1. a kind of normal-pressure hot-water boiler of biomass-burning, including combustion stove (1) and rectangle heating water tank (2)；Rectangle adds Boiler (2) is laterally disposed in combustion stove (1) on one side, and rectangle heating water tank (2) inner cavity is equipped with more backhaul fire tubes up and down Heat exchanger (3), the bending tubes end of more backhaul fire tube heat exchangers (3) is communicated with combustion stove fire box (4) up and down, and smoke evacuation end is logical It crosses smoke exhaust pipe (5) and connects air-introduced machine to flue；It is characterized by: the appearance and length of the backhaul fire tube heat exchangers (3) more up and down A hot water heating space (6) is constituted on the inside of rectangular heating water tank (2)；Combustion stove is leaned at the top of rectangle heating water tank (2) (1) there is the water inlet interface communicated with outer room (7) at end；It is held far from combustion stove (1) at the top of rectangle heating water tank (2) The water outlet mouthpiece (9) that lower bottom side is equipped with sewage draining exit (8) and communicates with outer room；It is also set in the top of rectangle heating water tank (2) A water supply tank (10) is counted, the outlet pipe of water supply tank (10) connects the water inlet interface (7) of above-mentioned rectangle heating water tank (2).

2. the normal-pressure hot-water boiler of biomass-burning according to claim 1, it is further characterized in that: the backhaul fire more up and down Heat exchange of heat pipe (3) is equipped with ash disposal mouth (11) at each turning of rectangle heating water tank (2) interior lower part.