CN2377443Y

CN2377443Y - Vacuum phase transformation gas (oil) hot-water boiler

Info

Publication number: CN2377443Y
Application number: CN 99211658
Authority: CN
Inventors: 贾如海
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-04
Filing date: 1999-06-04
Publication date: 2000-05-10
Anticipated expiration: 2009-06-04

Abstract

The utility model relates to a vacuum phase transformation gas (oil) hot-water boiler, which comprises a heat transformation device in a boiler barrel and a negative-pressure adjusting device connected to the outside, wherein, the utility model is orderly arranged a heating heat transformation tube group, a tea bath heat transformation tube group, and a smoke pipe group from top to bottom by a front and a back tube sheets sealed and fixedly connected to both sides in the boiler barrel, wherein, the heating heat exchange tube group, the tea bath heat exchange tube group, and the smoke pipe group are mutually separated; an outlet of the smoke pipe group is communicate with a smoke box, and an inlet of the smoke box is communicated with a backward smoke transformation chamber; a combustion engine is communicated with a cylinder-shaped combustion chamber arranged at the lower part in the boiler barrel, the outlet of a fire pipe group is communicated with a forward smoke transformation chamber. The outlet of a fire pipe set is communicated with the backward smoke transformation chamber, and the bottom part of the boiler barrel is provided with a water inlet pipe. The smoke discharge amount of the fuel or the gas of the utility model is less, and the utility model is good for environmental protection.

Description

Phase transition of vacuum combustion gas (oil) hot-water boiler

The utility model belongs to the improvement of phase transition of vacuum hot-water boiler, particularly phase transition of vacuum combustion gas (oil) hot-water boiler.

Present known phase transition of vacuum hot-water boiler is that the top vapor space in upper drum has been installed a steel shell and tube heat-exchanger rig, flame is by the drum barrel, make in the steam generator system " heat medium water " the sealing, low temperature (95 ℃-99 ℃), the vaporization down of the state of little negative pressure, boiling, the steam of boiling is passed to flowing water in the heat-exchanger rig with heat, and water is heated the back and flows out.Meanwhile, steam is condensed into water and falls, and is heated once more, vaporizes, and phase-change heat-exchange is carried out in circulation repeatedly, has efficient, energy-conservation, safe advantage.Weak point is to be fuel with the coal, and the coal smoke discharge capacity is big, contaminated environment.

The purpose of this utility model is to provide a kind of phase transition of vacuum combustion gas (oil) hot-water boiler, not only having with the coal is efficient, energy-conservation, the safe advantage of phase transition of vacuum hot-water boiler of fuel, and can natural gas fuel or fuel oil, the fuel combustion smoke discharge amount is few, alleviates the pollution to environment.

The utility model is achieved in that a kind of phase transition of vacuum combustion gas (oil) hot-water boiler, the vapor space that is included in the drum internal upper part is installed with the shell and tube heat-exchanger rig, the negative pressure adjusting device that the tube connector that picks out from drum top connects and the combustor of drum bottom, the sealing of both sides in horizontal drum affixed front tube sheet and back plate pipe, in drum, mutual separated heating set of heat exchange tubes is installed successively from top to bottom by front tube sheet and back plate pipe, tea is bathed set of heat exchange tubes and last backhaul smoke pipe group, the two ends that the set of heat exchange tubes that wherein heats and tea are bathed set of heat exchange tubes are respectively arranged with import and outlet, the outlet of last backhaul smoke pipe group is communicated with the smoke box that has chimney, the import of last backhaul smoke pipe group is changeed smoke-box with the back and is communicated with, being positioned at the outer combustor of drum is communicated with the tubular combustion chamber that install the drum bottom, combustor exit is connecting the preceding commentaries on classics smoke-box that is communicated with the import of following backhaul fire tube group, the outlet of following backhaul fire tube group is changeed smoke-box with the back and is communicated with, and in the bottom of drum water inlet pipe is housed.

During the utility model work, after filling up gauge water respectively in drum and in the housing of negative pressure adjusting device, airtight steam generator system, the valve of opening the negative pressure adjusting device lower housing portion then discharges water, put valve-off behind the suitable water, make the top of drum set up and the control boiler in vacuum (negative pressure).Combustion gas (oil) is sent into the combustion chamber by combustor, in combustion chamber internal combustion heat release, unburnt pyrotechnics enters down the heat release that burns away in the backhaul fire tube group by preceding commentaries on classics smoke-box, high-temperature flue gas changes smoke-box by the back and enters in the backhaul smoke pipe group after the heat release, enter smoke box, last low-temperature flue gas discharges out of the furnace from chimney.Flame is by heating flame chamber housing, preceding commentaries on classics smoke-box and following backhaul fire tube group, make the heat medium water in the drum under sealing, little negative pressure, low temperature (95 ℃-99 ℃) state, seethe with excitement, vaporize, steam is passed to the heating set of heat exchange tubes with heat, make the interior flowing water of heating set of heat exchange tubes be heated the back and flow to heating pipe, use for heating by outlet; Meanwhile, steam is condensed into water and falls, and is heated once more, seethes with excitement, vaporizes, and above-mentioned phase transition process is finished in circulation repeatedly, the tea that is arranged in drum top heat medium water is bathed set of heat exchange tubes, and the flowing water in its set of heat exchange tubes is flowed out supplying drinking water and bathing water by the heating of the heat medium water in drum back by outlet.The utility model not only has thermal efficiency height, energy savings, safe and reliable advantage, can prevent overtemperature, superpressure, guarantees safe operation, and can natural gas fuel or fuel oil, and the fuel combustion smoke discharge amount is few, has alleviated the pollution to environment.

Fig. 1 is a cross-sectional schematic of the present utility model

Fig. 2 amplifies cross-sectional schematic for heating heat exchanger tube A portion

The utility model will be further described below in conjunction with accompanying drawing, a kind of phase transition of vacuum combustion gas (oil) hot-water boiler, the vapor space that is included in drum 10 internal upper parts is installed with the shell and tube heat-exchanger rig, the negative pressure adjusting device 15 that the tube connector that picks out from drum 10 tops connects and the combustor 1 of drum 10 bottoms, the sealing of both sides in horizontal drum 10 affixed front tube sheet 16 and back plate pipe 21, in drum 10, mutual separated heating set of heat exchange tubes 9 is installed successively from top to bottom by front tube sheet 16 and back plate pipe 21, tea is bathed set of heat exchange tubes 7 and last backhaul smoke pipe group 5, the set of heat exchange tubes that wherein heats 9 two ends are respectively arranged with import 8 and outlet 11, the two ends that tea is bathed set of heat exchange tubes 7 are respectively arranged with import 6 and outlet 12, heating set of heat exchange tubes 9 is provided with the tube bank that the spiral fluted straight tube of outer recessed convex is arranged in a combination by the periphery of every pipe, the spill helicla flute of its pipe outer wall is in order to increase and the augmentation of heat transfer area, inside pipe wall is the helix of projection, purpose is to improve the flow condition of water in pipe, state flows in the shape of a spiral, less scaling, tea is bathed set of heat exchange tubes 7 and is made of the straight collimator group, be positioned at the hydrospace on drum 10 tops, the dotted line in the accompanying drawing is represented the waterline of " heat medium water " in the drum; The outlet of last backhaul smoke pipe group 5 is communicated with the smoke box 13 that has chimney 14, the import of last backhaul smoke pipe group 5 is changeed smoke-box 3 with the back and is communicated with, being positioned at drum 10 outer combustors 1 is communicated with the tubular combustion chamber 2 that install drum 10 bottoms, the middle part of 2 cylindrical shells is provided with the expansion joint 19 of toroidal cavity in the combustion chamber, can prevent that combustion chamber 2 cylindrical shells are heated produces distortion, the outlet of combustion chamber 2 is connecting the preceding commentaries on classics smoke-box 18 that is communicated with 4 imports of following backhaul fire tube group, the outlet of following backhaul fire tube group 4 is changeed smoke-box 3 with the back and is communicated with, and in the bottom of drum 10 water inlet pipe 20 is housed.Have at preceding commentaries on classics smoke box 18 rear walls on the excircle of plane of weakness of indenture and connecting explosion-proof duct 17, explosion-proof duct 17 is led to outside the drum 10, when the pressure in the combustion chamber surpasses safety value, the preceding plane of weakness explosion of changeing on smoke box 18 rear walls, Pneumatic pipe cleaner is crossed 17 pressure releases of explosion-proof duct, guarantees the utility model safe operation.

Claims

1. a phase transition of vacuum combustion gas (oil) hot-water boiler, the vapor space that is included in drum (10) internal upper part is installed with the shell and tube heat-exchanger rig, the negative pressure adjusting device (15) that the tube connector that picks out from drum (10) top connects and the combustor (1) of drum (10) bottom, it is characterized in that both sides sealing in horizontal drum (10) affixed front tube sheet (16) and back plate pipe (21), in drum (10), mutual separated heating set of heat exchange tubes (9) is installed successively from top to bottom by front tube sheet (16) and back plate pipe (21), tea is bathed set of heat exchange tubes (7) and last backhaul smoke pipe group (5), the two ends that set of heat exchange tubes that wherein heats (9) and tea are bathed set of heat exchange tubes (7) are respectively arranged with import (8), (6) and the outlet (11), (12), the outlet of last backhaul smoke pipe group (5) is communicated with the smoke box that has chimney (14) (13), the import of last backhaul smoke pipe group (5) is changeed smoke-box (3) with the back and is communicated with, being positioned at the outer combustor (1) of drum (10) is communicated with the tubular combustion chamber (2) that install drum (10) bottom, the outlet of combustion chamber (2) is connecting the preceding commentaries on classics smoke-box (18) that is communicated with following backhaul fire tube group (4) import, the outlet of following backhaul fire tube group (4) is changeed smoke-box (3) with the back and is communicated with, and in the bottom of drum (10) water inlet pipe (20) is housed.

2. phase transition of vacuum combustion gas according to claim 1 (oil) hot-water boiler, the set of heat exchange tubes (9) that it is characterized in that heating is arranged in a combination by the spiral fluted straight tube that the periphery of every pipe is provided with outer recessed convex, and tea is bathed set of heat exchange tubes (7) and is made of the straight collimator group.

3. phase transition of vacuum combustion gas according to claim 1 (oil) hot-water boiler is characterized in that the middle part of (2) cylindrical shell in the combustion chamber is provided with the expansion joint (19) of toroidal cavity.

4. phase transition of vacuum combustion gas according to claim 1 (oil) hot-water boiler is characterized in that connecting explosion-proof duct (17) on preceding commentaries on classics smoke box (18) rear wall has the excircle of plane of weakness of indenture, and explosion-proof duct (17) are led to outside the drum (10).