CN2100580U

CN2100580U - Double-functional living boiler

Info

Publication number: CN2100580U
Application number: CN 90210643
Authority: CN
Inventors: 孙荣清; 郭泗家
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-02-22
Filing date: 1990-02-22
Publication date: 1992-04-01

Abstract

The utility model provides a vertical inversely burning double-functional living boiler. The boiler is composed of a slag outlet, a boiler casing, an internal furnace, a cupola pipe, a chimney, an upper fire grate, a lower fire grate, an upper boiler door and a lower boiler door. A combustion chamber is positioned on the lower part of the boiler, and the arch cavity structure of the upper boiler chamber of the combustion chamber is an arc water-jacket type. The upper side of the internal furnace is provided with a coil heat exchanger, and a fume outlet on the top of the boiler body is provided with a waste-heat recoverer. The utility model realizes the purpose that the tea boiler can be used for drinking and heating. The utility model has the advantages of high thermal efficiency, simple manufacturing technique and convenient maintenance.

Description

Double-functional living boiler

The utility model relates to a kind of vertical counter-burning method domestic life boiler, especially a kind of difunctional boiler for domestic of being furnished with waste-heat recovery device and coil heat exchanger.

Usually, enterprises and institutions such as office, school, hotel, shop for solving worker's problem of drinking water, mostly use common tea furnace.But this class tea furnace can not be made other purposes except that the supply boiling water, influence its use value.As in some units, should drink water, also have the problems concerning life such as heating of certain area building, obviously can not satisfy only according to common tea furnace.If acquire hot-water boiler or other heat transmission equipments in addition, not only increase investment, and increase hold facility place, operating personnel and equipment maintenance cost.

The purpose of this utility model solves the single problem of common tea furnace purposes exactly, and realization is drunk water, heating is integrated, and fuel saving, and is simple in structure, easy to maintenance.

The utility model adopts ripe double-layer grate back burning technology, form by slag notch 1, shell 21 flues 22, impact tube 16, chimney 14, upper fire-grating 5, upper furnace door 6, lower fire grating 2, lower furnace door 4, the combustion chamber is positioned at the bottom of boiler, and the upper fire-grating 5 that constitutes with the steel pipe of one group of about 10 ° of inclination of angle is that the boundary is divided into upper and lower two furnace chambers.Lower fire grating 2 adopts plain cast iron to make.The both sides, combustion chamber are exhaust gases passes.Last furnace chamber arch cavity configuration 7 is the arc water-jacket typ, this water jacket can be made by the steel plate of two-layer embowment, two ends and flue 22 join, and the centre is the hydrospace, is communicated with the hydrospace of boiler, whole arch cavity configuration is well cooled off, and increased the boiler heat-transfer area, simple in structure, easy to make, long service life has thoroughly solved the furnace chamber sealing problem.

Coil heat exchanger 19 is fixed on flue 22 tops, by steel tube bending a few, shell 21 is stretched out at two ends.One end is a recirculated water inlet 20, and the other end is a circulating water outlet 18, is connected with heating system respectively.

Waste-heat recovery device 10 is a shell-and-tube, places the boiler flue gas outlet place.The inner casing diameter is identical with chimney 14, vertically arranged crosswise number layer horizontal water tube.Sweep of gases inner casing and horizontal water tube outer wall, heat passed between the inside and outside shell and horizontal water tube in water, to reduce exhaust gas temperature, improve boiler thermal output.Water inlet pipe mouth 15 and effluent pipe mouth 12 are arranged at waste-heat recovery device 10 bottoms and top, connect feed pipe 23 and communicating pipe 9 respectively.

Be safe operation, waste-heat recovery device 10 and boiler body top are respectively equipped with the logical atmosphere mouth of pipe 13,17.For checking and removing incrustation scale in the boiler, on shell 21, be provided with inspection opening, clean-out opening and sewage draining exit.

The difunctional boiler for domestic course of work described in the utility model:

1 burning: soft coal is dropped on the coal-fired layer that is added in upper fire-grating 5 by upper furnace door 6, and coal is dry from top to bottom, preheating and burning.Combustion product flows downward and passes upper fire-grating 5, simultaneously because upper fire-grating 5 gaps big (generally between 28-40mm), unburnt coal grain of a part and lime-ash are left out by mistake on the lower fire grating 2 and are burnt away, and the following furnace chamber combustion space that upper fire-grating 5 and lower fire grating are 2 forms high temperature.Make the fuel gas that produces in upper fire-grating 5 coal seams and pass the air that lower fire grating 2 obtains heating and mix and fully burning, reach energy-conservation and purpose smoke abatement and dust control.High-temperature flue gas rises through the passage of both sides, combustion chamber, washes away convection heating surfaces such as flue 22, down tube 8, impact tube 16, waste-heat recovery device 10, enters atmosphere by chimney 14.

During normal combustion, upper furnace door 6 standard-sized sheets, lower furnace door 4 complete shut-downs, the aperture of cleanout door 1 is regulated according to burning.Generally speaking, the intake of upper furnace door 6 accounts for 70% of total requiremants, and the intake of cleanout door 1 accounts for 30% of total requiremants.

2, drinking-water: running water enters in the shell 21 through

valve

25,26, and water level generally is controlled at water level meter 11 centre positions.Water constantly absorbs furnace heat makes it boiling, open valve 3 pour into all kinds of containers can be for drinking.

When injecting water in the past shell 21, running water is filled with waste-heat recovery device 10 through valve 24, feed pipe 23.After the water boiling, according to the drinking-water amount of taking, adjust valve 24 apertures in the shell 21, the water that is preheating to uniform temperature in the waste-heat recovery device 10 makes and takes the drinking-water serialization through flowing into communicating pipes 9 in the shell 21 behind the boiling water.

3 heating: coil heat exchanger 19 is with the heating system polyphone and fill with water, the heat that water absorbs in the boiling water by coil heat exchanger 19, get back to coil heat exchanger 19 continuation heat absorptions after under electric pump orders about, flowing through the heat release of heating system radiator, form closed cycle, reach the purpose of heating.

The utility model has following advantage compared to existing technology:

1, has difunctionally, under the situation that does not influence drinking-water, can realize the hot water heating of certain area, enlarged the use value of common tea furnace by coil heat exchanger 19.

2, waste-heat recovery device 10 places boiler flue gas outlet, can reduce exhaust gas temperature effectively, improves boiler thermal output.Running water enters boiler after waste-heat recovery device 10 preheatings, by water yield control, can without interruptionly drink water.

3, replaced the horizontal water tube of weldering with steel plate or filling fire resisting material with the arc water jacket, made furnace chamber arch cavity configuration 7 manufacture crafts simple, sealing, cooling have reliably strengthened heat transfer area, have reduced maintenance load.

Fig. 1 is the utility model schematic diagram.Wherein: 1-cleanout door, 2-lower fire grating, 3-valve, 4-lower furnace door, the 5-upper fire-grating, 6-upper furnace door, the last furnace chamber arch of 7-cavity configuration, 8-down tube, 9-communicating pipe, 10-waste-heat recovery device, 11-water level meter, 12-effluent pipe mouth, 13-leads to the atmosphere mouth of pipe, 14-chimney, 15-water inlet pipe mouth, 16-impact tube, 17-leads to the atmosphere mouth of pipe, 18-circulating water outlet, 19-coil heat exchanger, 20-recirculated water inlet, the 21-shell, 22-flue, 23-feed pipe, 24,25, the 26-valve.

Claims

1, a kind of difunctional boiler for domestic, form by slag notch 1, shell 21, flue 22, impact tube 16, chimney 14, upper fire-grating 5, upper furnace door 6, lower fire grating 2, lower furnace door 4, it is characterized in that the combustion chamber is positioned at the boiler bottom, the last furnace chamber arch cavity configuration 7 of combustion chamber is the arc water-jacket typ, there is coil heat exchanger 19 flue 22 tops, shell 21 is stretched out at two ends, the boiler top exhanst gas outlet retracting device 10 that has surplus heat.

2, according to the described a kind of difunctional boiler for domestic of claim 1, it is characterized in that waste-heat recovery device 10 is shell-and-tube, intersect vertically in the inner casing and be furnished with horizontal water tube, water inlet pipe mouth 15 is arranged at the bottom, and effluent pipe mouth 12, the logical atmosphere mouth of pipe 13 are arranged at top.