CN2828578Y

CN2828578Y - Screw flue afterheat recvering apparatus

Info

Publication number: CN2828578Y
Application number: CN 200520050967
Authority: CN
Inventors: 聂明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-31
Filing date: 2005-05-31
Publication date: 2006-10-18
Anticipated expiration: 2015-05-31

Abstract

The utility model relates to a screwy smoke flue residual heat recovering device. A housing is composed of a heat-insulating layer and a plurality of layers of water jackets, a plurality of screwy water pipes and branch pipes with fins are installed in the housing, and the screwy water pipes and the branch pipes are communicated with the water jackets to form a circulation cooling water passage and a screwy smoke flue which are connected with a chimney of a boiler via flanges. The resistance of smoke gas in the boiler is little when the smoke gas passing through the smoke flue; water vapor in the smoke gas is condensed into water, and harmful gas such as sulfur oxide, nitrogen oxide, etc. and other impurities in the smoke gas are dissolved by the water; settled smoke dust flows into a condensation water tank and a water ditch and is exhausted from a blow-off pipe; thus, the pollution of the atmosphere due to the smoke gas can be decreased, and the self cleanness of the smoke flue can be carried out. The water is delivered to the recovering device through a booster pump with a motor and a pressure relay, and the water jackets are provided with exhaust valves. The cooling water can be recovered and utilized, and the energy can be saved thereby.

Description

Spiral flue residue heat recover

Technical field

The utility model relates to a kind of device for recovering residual heat of flue, and easy spiral device for recovering residual heat of flue is safeguarded in particularly a kind of energy-efficient, environmental protection, self-cleaning and resistance is little, manufacturing process is simple.

Background technology

Mostly existing device for recovering residual heat of flue is the exhaust gases passes complications, and resistance is big, the energy consumption height, and heat-absorbent surface is little, and waste heat recovery is low, and environment protecting is general, manufacturing process complexity, deficiencies such as troublesome maintenance.

Summary of the invention

In order to overcome the deficiency of existing device for recovering residual heat of flue, the utility model adopts water sleeve type chimney and spirality flue.The co-altitude helix manys times than length, and is strong to the power that puts a chimney on the stove and make the fire draw naturally of boiler, reduces the air blast energy of boiler; The spirality flue lowers the flue gas flow resistance; sedimentation cigarette ash: the spirality flue is made up of the arm of multi-group fin; increase the contact-making surface of cooled flue gas; thereby absorb waste heat, energy-conservation better; be dissolved with harmful gas and cigarette ash better with fixed attention, the protection environment: condensation sewage overlaps inner cylinder face downstream and helicoid flows into condensate draining and the cool ditch of coagulating, and discharges from sewage draining exit; inner self-cleaning, safeguard easily.

The concrete scheme that the utility model adopts is: with multilayer (this example the is three layers) water jacket that links is stovepipe, proper many (this example is three) the spirality water inlet pipes of water jacket inner wall outside, be welded with many finned branching pipes of arranging twist on the water inlet pipe, logical water inlet cover, constitute spiral flue face, its process is: the hole of having bored earlier helical pattern on the water jacket inwall, weld finned arm, again C shape groove material is processed into spirality, cover on the finned branching pipe mouth of water jacket inner wall outside one end, and weldering is tight, and making becomes water inlet pipe; The burn-on upper and lower end and the outer wall of water jacket become water jacket again.Flue gas is air-flow discharge in the shape of a spiral in the spiral shell flue, and cigarette ash and carbon distribution solid are arranged in the flue gas, and quality is bigger, descends in eddy flow; Steam in the flue gas when contact water jacket, water pipe and fin, is condensed into water, and pernicious gas and part solid such as dissolving sulfur dioxide in flue gas, nitrogen oxide, carbonoxide, and flow into the condensation ditch, and discharge from sewage draining exit: S-shaped because of branching pipe, the flexible surplus of expanding with heat and contract with cold; Water inlet is from running water, and booster pump and pressure switch by charged motivation enter the utility model, when hydraulic pressure is high in hydraulic pressure or the utility model from the beginning, and the pressure switch outage, booster pump does not turn round, otherwise the running water delivery; But all convection circulations of the water in water jacket and the water pipe constantly raise its water temperature, but keep the temperature of enough cooled flue gas; Circulating hot water is emitted and can be made boiler feed water or other water with energy-conservation, and water jacket has air bleeding valve, in order to getting rid of residual air, and support equipment safety; Water jacket outsourcing heat-insulation layer is to improve utilization rate of waste heat.Lower layer of water is with the delivery port of band valve, and switch valve is recycled hot water to regulate water temperature and the hydraulic pressure in the utility model.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model front view.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 and Fig. 4 are with the front view of the branching pipe of horizontal fin and left view.

Fig. 5 and Fig. 6 are the front view and the left views of the branching pipe of band vertical fins.

Part name among the figure: 1, exhaust opening, 2 air bleeding valves, 3, with the branching pipe of horizontal fin, 4, the ground floor water inlet pipe, 5, ground floor water jacket, the heat-insulation layer of 6 kalamein sheets, 7, second layer water inlet pipe, 8, second layer water jacket, 9, triple-layered water pipe, 10, the 3rd layer of water jacket, 11, condensate draining, 12, the condensation ditch, 13, sewage pipe, 14, pressure switch, 15, the booster pump of charged motivation, 16, the water inlet manifold of band valve, 17, adpting flange, 18, total outlet pipe, 19, boiler chimney, 20, the branching pipe of band vertical fins.

The specific embodiment

Water enters ground floor water inlet pipe (4) from the booster pump (15) of water inlet manifold (16) by charged motivation of band valve, by many branching pipes water is sent into ground floor water jacket (5) again with horizontal fin, water flows into second layer water inlet pipe (7) from ground floor water jacket (5), enter second layer water jacket (8) by many branching pipes (3) again with horizontal fin, water flows out from second layer water jacket (8) again, enter the 3rd layer of water inlet pipe (9), the 3rd layer of water inlet pipe (9) be the many branching pipes with horizontal fin (3) from communicating with it again, and water is imported the 3rd layer of water jacket (10); Total outlet pipe (18) of band valve is arranged at the 3rd layer of water jacket (10) bottom, close this valve, this equipment can be filled water, after water is full, hydraulic pressure increases in the equipment, pressure switch (14) outage, the booster pump of charged motivation (15) stall is not toward equipment input water, but water can not flow backwards, because of hydraulic pressure in the refluence equipment reduces, pressure switch (14) is connected power supply, makes booster pump (15) the running input water of charged motivation; Higher as tap water pressure, pressure switch (15) outage, water is from the direct input equipment of running water pipe, presses when hydraulic pressure equates from the beginning when water full water in the equipment, stops to import water.When the valve of opening on total outlet pipe (18) discharges water, hydraulic pressure reduces in the equipment, and ground floor water inlet pipe (4) continues again to intake.

The utility model has adpting flange (17) to be connected with boiler chimney (19).Boiler is lit a fire, flue gas enters the utility model by boiler chimney, discharge from the rotation of spirality flue, flue gas contacts with three layers of water jacket (5), (8), (10) inwall with many finned branching pipes, carry out heat exchange, water temperature raises, flue-gas temperature reduces, steam cohesion in the flue gas is water, water dissolves pernicious gases such as sulfur oxide in the flue gas, carbonoxide, nitrogen oxide again, and flushing cigarette ash, flow to straight shape condensate draining (11) along the branching pipe of arranging twist with horizontal fin, flow into annular condensation ditch (12) again; At the sewage of three layers of water jacket inwall cohesion, diameter flows to condensed water ditch (12), discharges by sewage pipe (13).Because three layers of water jacket echelon heating have heat-insulation layer (6) insulation again, water temperature can be higher, more practical (as the usefulness of having a bath).When water temperature is higher, when interior pressure was higher, air bleeding valve (2) was opened step-down, exhaust, to ensure safety.

The fin of utility model, except that horizontal type, also available vertical-type (20) is seen Fig. 5, Fig. 6, or patterns such as inclination, curve (not drawing).

Claims

1, a kind of spiral flue residue heat recover, it is characterized in that: form shell by the water jacket that links by the heat-insulation layer multilayer, link with flange and boiler chimney, in connect spirality water pipe and finned arm, form the spirality flue, there are condensate draining, condensation ditch and blow-off pipe in its below.

2, spiral flue residue heat recover according to claim 1 is characterized in that: in the waste-heat recoverer, finned arm is horizontally placed in the water jacket along the hand of spiral, forms two spiralling flues.

3, spiral flue residue heat recover according to claim 1 is characterized in that: the fin of finned arm can be designed to horizontal, vertical configuration or skewed, curve-like.

4, spiral flue residue heat recover according to claim 1, it is characterized in that: finned arm, middle bent is S-shaped.

5, spiral flue residue heat recover according to claim 1 is characterized in that: the link water of water jacket of the multilayer of waste-heat recoverer is by the spirality water pipe, enters many finned arms, enters lower floor's water jacket again.Every layer of water jacket all has air bleeding valve.

6, spiral flue residue heat recover according to claim 1 is characterized in that: waste-heat recoverer outsourcing heat-insulation layer.

7, spiral flue residue heat recover according to claim 1 is characterized in that: the water inlet pipe of waste-heat recoverer is communicated with booster pump, the pressure switch of charged motivation.

8, spiral flue residue heat recover according to claim 1 is characterized in that: the spiral flue of waste-heat recoverer and water jacket inwall are aimed at condensate draining, annular condensation ditch, and sewage pipe runs in the condensation ditch.