CN2198516Y

CN2198516Y - Steam andwater burning assistant smoke cleaning constant pressure boiler

Info

Publication number: CN2198516Y
Application number: CN 94214152
Authority: CN
Inventors: 王森
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-13
Filing date: 1994-06-13
Publication date: 1995-05-24
Anticipated expiration: 2004-06-13

Abstract

The utility model relates to a steam and water burning assistant smoke cleaning constant pressure boiler. The utility model is characterized in that the front side, the back side, the left side, the right side and the top side of a hearth water jacket are all communicated, wherein, the end face of the front side is provided with a steam and water nozzle. The outer end of the nozzle is provided with a pipe, a controlling valve and a gate valve and is communicated with a branch water cylinder. The left side and the right side of the water jacket are provided with smoke baffle plates, and the rear top is provided with a support. The water jacket and an upper boiler drum form a three-return smoke channel. The right side, the left side and the back side of the water jacket are provided with an upper header tank, a lower header tank and a convection pipe coil composed of pipe bundles. Water and smoke countercurrent flow. The boiler can spray hot water or steam to the hearth. Thus, coal is gasified and combusted, the thermal efficiency is high, and the combustion is sufficient. Smoke can be eliminated, and dust can be controlled. The boiler can be popularized and used in enterprises and institutions for heating.

Description

Steam andwater burning assistant smoke cleaning constant pressure boiler

The utility model relates to normal-pressure boiler, is a kind of heating combustion-supporting smoke elimination normal-pressure hot-water boiler of carbonated drink.

At present, the boiler of selling on the market is broadly divided into two kinds: a kind of is fire tube or water-tube boiler, and its burner hearth or flue all are built into by refractory material, and this boiler shortcoming is: (1) complex manufacturing technology, and furnace wall easily bursts apart, and maintenance capacity is big; (2) necessary adapted air blast or air-introduced machine; (3) dust removing effects is poor, necessary adapted deduster, otherwise do not reach environmental requirement; (4) investment is big, and another kind is a water jacket boiler, and the patent No. is 892007214 normal-pressure boiler, form by three parts, and the one, hearth water sleeve; The 2nd, the left and right sides is by the convection tube group of being made up of upper collecting chamber, next part case and tube bank, and rear side has the connection water holding jacket; The 3rd, oval water tank is arranged, this kiln gas has three backhauls, by gravity-flow ventilation, thermal efficiency Gao Keda 76%.But the coal consumption height, the thermal efficiency also has the potential to be tapped, and smoke medicining dust-removing effect is poor, does not also reach environmental protection standard as misoperation.

The purpose of this utility model provides a kind of Nonpressure boiler by accelerating combustion with steam for eliminating smoke, with further overheavy firing, makes coal combustion more abundant, improves the thermal efficiency and smoke medicining dust-removing effect greatly.

The purpose of this utility model is achieved in that makes the connection water jacket with the top all around with burner hearth, on the water jacket front end face, be provided with the carbonated drink nozzle, there is pipe the nozzle outer end, control valve, gate valve is connected with dividing water vat or branch drum, on the water jacket rear end face, smokestack is arranged, communicating pipe is arranged at the bottom, in front top there is communicating pipe, be communicated with upper drum, smoke baffle plate is arranged on the two side, support with the back, upper drum is formed three backhaul flues, about water jacket, be provided with by upper collecting chamber with rear side, the convection tube group that next part case and tube bank are formed has water inlet pipe on upper collecting chamber or next part case, have communicating pipe to communicate with water jacket on the rear side next part case.Have communicating pipe to be connected with upper drum on the upper collecting chamber, chimney is located in the upper drum postmedian, and refractory material is arranged in the furnace wall, and iron sheet is arranged outward, between refractory material and the iron sheet heat-insulation layer is arranged.

When burner hearth reaches uniform temperature, open nozzle, the hot water or the steam of band pressure spray into burner hearth, and hot water at high temperature becomes superheated steam, and high-temperature steam and carbon content in coal generation pyrolysis and combination reaction generate H ₂, O, CO, CH ₄, well-known H ₂, CO and CH ₄Incendivity, O can be combustion-supporting, like this flame height, pass convection bank behind the smokestack, stop down that at the stove rear wall walking around smoke baffle plate advances three backhaul flues, discharges from chimney to the both sides wraparound that makes progress, and cold water is to enter backward from upper collecting chamber or next part case front end, enter the water jacket bottom from the next part case, upwards flow forward then, enter upper drum through communicating pipe, from outlet pipe heating, water and flue gas reverse flow.

This utility model compared with prior art has the following advantages: 1) be provided with the carbonated drink nozzle, can make the coal vaporization combustion to burner hearth water spray or steam, can economize coal more than 20%; 2) sufficient combustion can be eliminated black smoke; 3) the flame height helps heat exchange, and heat is imitated high; 4) adopt gravity-flow ventilation, small investment, 5) simple in structure, make to make things convenient for.

Be described further below in conjunction with accompanying drawing:

Fig. 1, Nonpressure boiler by accelerating combustion with steam for eliminating smoke front view;

Fig. 2, Nonpressure boiler by accelerating combustion with steam for eliminating smoke side view;

Fig. 3, carbonated drink nozzle component diagram

Fig. 1--in-3: base (21) adopts steel plate to make, its front and side are provided with ash door (1), fire grate (23) is arranged above, hearth water sleeve (5) adopts quality steel plate to make, before and after it, about and arch top be the connection water jacket, on the water jacket front end face, be provided with fire door (22), carbonated drink nozzle (15), carbonated drink nozzle (15) has at least one, also can be distributed in other sides, this nozzle is divided into vapour and chews He Shuizui, the water injection nozzle structure is: a cylindrical nozzle tube (15---2) is arranged, and its front end abacus (15---1) has at least one spray orifice (15---5) on the orifice plate, injection diameter is φ=2---8mm, there is water jacket (5) nozzle tube outside, and there is flange (15---3) rear end, by bolting blind plate (15---4) is arranged, intrinsic pipe (16) on the blind plate, by control valve (17), gate valve (20) is connected on the branch water vat (18), divides the interior hydraulic pressure of water vat to be not less than 1kg/cm ²(0.1 MPa), its bottom is provided with blowoff valve (19).This nozzle also is applicable to steam boiler, if its structure of spraying steam is constant, just changes water jacket (5) into water-cooling wall, is connected to the branch drum, divides drum pressure to be not less than 2kg/cm ²2(0.2 MPa), this nozzle is also self controllable, control control valve automatic water jetting or steam in smoke outlet installation thermocouple or oxygen sense pipe by flue-gas temperature or oxygen content, on water jacket (5) rear end face, be provided with smokestack (24), lower bottom part is provided with communicating pipe (28), preceding top is provided with communicating pipe (14), the top, back is provided with support (26), intrinsic metal smoke baffle plate (10) on the two side, be provided with by upper collecting chamber (8) in the water jacket left and right sides and rear side, the connection convection tube group that next part case (3) and tube bank (4) are formed, at next part case or upper collecting chamber front end water inlet pipe (2) is arranged, communicating pipe (25) is arranged on the next part case on the rear side, (28), respectively with upper drum (11), water jacket (5) is communicated with, upper drum (11) has air bleeding valve (27) on the top, one end is welded with outlet pipe (13), and communicating pipe (14), chimney (12) is located in the upper drum postmedian, pass upper drum and upper drum solid welding together, building in the furnace wall has refractory brick (6), and iron sheet (9) is arranged outward, between heat-insulation layer (7) is arranged.

Claims

1, a kind of Nonpressure boiler by accelerating combustion with steam for eliminating smoke, be by base (21), ash door (1), hearth water sleeve (5), fire door (22), fire grate (23), smokestack (24), communicating pipe (14), (28), next part case (3), tube bank (4), upper collecting chamber (8), upper drum (11), air bleeding valve (27), outlet pipe (13), chimney (12), refractory brick (6), iron sheet (9), heat-insulation layer (7) is formed, it is characterized in that: before and after the water jacket (5), about and the top be the connection water jacket, on front end face, be provided with carbonated drink nozzle (15), the nozzle outer end is provided with pipe (16), control valve (17), gate valve (20) is connected with dividing water vat or branch drum (18), divide water vat (18) bottom to be provided with blowoff valve (19), smokestack (24) is arranged on the water jacket rear end face, the bottom has communicating pipe (28) front top to have communicating pipe (14) to be communicated with upper drum, on the wall of water jacket (5) left and right sides, be provided with smoke baffle plate (10), with support (26), upper drum (11) is formed three backhaul flues, be provided with by upper collecting chamber (8) in water jacket (5) left and right sides and rear side, the connection convection tube group that next part case (3) and tube bank (4) are formed, be provided with water inlet pipe (2) at upper collecting chamber or next part case front end, communicating pipe (25) is arranged on the next part case on the rear side, (28).

2, normal-pressure boiler according to claim 1, it is characterized in that: carbonated drink nozzle (15) has at least one, nozzle tube (15---2) is cylindrical, its front end abacus (15---1), at least one spray orifice (15---5) is arranged above, there is flange (15---3) rear end, leans on the intrinsic blind plate of bolt (15---4), intrinsic pipe (16) on the blind plate, there is water jacket (5) outside.

3, according to claim 1 or 2, described normal-pressure boiler, it is characterized in that: spray orifice (15---5) diameter is φ 2---8mm.