CN2081890U - Apparatus for recovery of lost heat from waste gas of motor-driven vehicle - Google Patents

Abstract

The utility model belongs to a high-efficiency energy-saving apparatus for recovering and using the lost heat of the exhaust pipe of the engine of the motor-driven vehicle, mainly composed of the members, such as a heat absorber, a water-supply connecting pipe, a backwater connecting pipe, a heat exchange box, an expansion water box, a metallic boiler, a hot pipe, etc. The utility model has high heating efficiency, obvious power-saving effect, and can achieves a plurality of uses in a very short time, such as drinking boiled water, cooking, heating, etc. on the motor-driven vehicle. The utility model has simple structure, easy processing and manufacturing, and convenient arrangement and use. The utility model is not only extensively suitable for all the internal combustion motor-driven vehicles, but also the utility model is suitable for being applied to the internal combustion power generation group.

Description

Apparatus for recovery of lost heat from waste gas of motor-driven vehicle

The utility model belongs to a kind of efficient energy-saving device that is used for reclaiming and utilizing automobile residual heat.

Existing Motor Vehicle is running when middle as various automobiles, armored vehicle, kitchen truck, diesel locomotive etc., and the heat of motor institute combustion gas is wasted in vain.In order to reclaim and utilize this part waste heat, can on the exhaust heat pipe of Motor Vehicle, water boiling device be installed, thereby can solve long-distance when driving driver and passengers inside the car's drinking-water problem.A kind of " automotive residual heat water boiling device " (Chinese patent: CN87202932) tentatively can address this problem.It is by upper water box and the lower header that is installed on the outlet pipe, is coupled together by two thermoconvection pipes in the middle of it, thereby has constituted water boiling device.Behind vehicle starting, heat the water in the lower header along with the intensification of outlet pipe, via the water of current downflow on the two tubes, just heated the water in the water tank more thereupon, until boiling, the personnel of going up that buy car in installments drink.In order to solve behind the long-time boiling water and the nitrosonium salts ion problem that produces, it has also installed the automatic electromagnetic threshold switch at lower header so that after the boiling of the water in the last lower header, discharge automatically in the lower header water with close two convection current pipes.Or adopt a Movable valve is installed on the fork of fork outlet pipe, and lower header is installed on this fork outlet pipe, thereby can open or close according to the hot gas in the situation control fork outlet pipe of heating up water.Use this water boiling device structure to heat water in the upper water box, therefore, the thermal efficiency is low.Simultaneously, the not enough health of directly drinking water also of the water in this utilization in the lower header is used nor can cook and be connected radiator heating.

The purpose of this utility model is to propose a kind of efficient heat transfer heat pipe that includes, metal pan, swelling water tank and radiator reclaim energy saving device at interior automobile residual heat, thereby can utilize the waste heat of Motor Vehicle combustion gas efficiently, solve drinking water on the car, cook and the problem of heating.

Main structure of the present utility model is by heat absorber, parts such as last water connecting tube, backwater connecting tube, heat exchange box, swelling water tank, metal heat exchange pot, efficient heat absorption tube, radiator and valve, by the welding or the composition that is spirally connected, and with the welding of the outlet pipe of suction tude in the heat absorber and Motor Vehicle, thereby constituted the waste heat recovering energy conserving device.Utilize this device that cold water constantly is heated, produce convection current,, drink, cook and the interior purpose that heats of car thereby reach until boiling.

The utility model can be according to the actual demand of Motor Vehicle and flexible design.Heat exchange box can be designed to other random geometry according to the spatial position on the Motor Vehicle.The heating surface of heat absorber suction tude (2) can design length as required, and connecting tube can use temperature resistant rubber hose or plastic tube to connect, so that install.Heat absorber generally can select for use 1.5 to 3.0 sheet metals to make, or makes of Sheet Steel Pipe.Heat exchange box can be used the sheet metal manufacturing.Metal pan requires with aluminium or stainless steel material manufacturing.Or hang enamel with iron plate and make.Be installed in the heat-pipe-type in heat exchange box and the metal pan, select for use gravity assisted heat pipe both economical, shell requires with copper pipe or Stainless Steel Tube manufacturing, also can form with common seamless steel pipe chromium plating, heat-transfer working medium in the pipe requires the avirulent reflection, require and to be used for the heat-transfer working medium of heat absorber and heat exchange box in proper functioning under the low-temperature condition in the north, generally use common water just passable.But when north of china in winter uses, then require to add antifreeze liquid in case long freeze whole waste heat recovering energy conserving device dead time.

The utility model thermal efficiency height, the heat recovery effect is obvious, when one 28 horsepowers Jilin 110 minicars are tested in the waste heat recovering energy conserving device of 10 kg of water is housed, run with 60 kilometers speed per hour, can make water temperature reach 62 degree in two minutes, rose to 84 degree in 3 minutes, rose to 100 and spend in 5 minutes.

The utlity model has simple in structurely, characteristics such as make easily and easy to install, it not only extensively is useful on the various internal combustion engine motor vehicles, also is useful on the oil-electric engine group to use.

Fig. 1 and Fig. 3 are structural drawing of the present utility model.

Fig. 2 is the connection diagram of return pipe of the present utility model and heat absorber.

Fig. 4 is the scheme of installation of heat absorber of the present utility model and motor vehicle exhaust.

Further specify each parts of the utility model below in conjunction with specific embodiment and form working procedure and they structural relation to each other.

Fig. 1 is a structural representation of the present utility model, and its heat absorber is by suction tude (2) and jacket pipe (3), and heat-preservating shell (4) is formed.Leave water interlayer (5) between suction tude (2) and the jacket pipe (3).The centre of suction tude (2) is equipped with 1 to 5 heat-absorbing water pipe (13), use 3 heat-absorbing water pipes (13) in the present embodiment, the slightly larger in diameter of suction tude is in the diameter of engine exhaust pipe, so that do not influence the capacity of exhaust, it can be connected with outlet pipe one or both ends.This connection can be adopted and be spirally connected, and pegs graft or welding.When engine operation, waste gas enters suction tude (2) by suction port (1), and the ambient heat in the waste gas is just absorbed by tube wall, and middle heat is just absorbed by heat-absorbing water pipe (13).At this moment, in the water interlayer (5) heat-transfer working medium---water just is heated.Because water is at back volumetric expansion, the weight saving of the being heated buoyance lift that makes progress, thereby hot water will upwards flow in the heat exchange box (7) by last water connecting tube (6) and hot water cross pipe (14) and go the cold water heat release in heat exchange box.The heat exchange box outside is provided with thermal insulation layer (8), and after the hot water of the heat exchange box of flowing through (7) lining cooled off through heat release, water temperature reduced, and capacity increases, and cold water will be deposited to water interlayer in the heat absorber (5) lining downwards by backwater connecting tube (9).Like this, because coupling together with backwater connecting tube and last water connecting tube, heat exchange box and heat absorber formed closed circuit.So when the heavier backwater that comes out from heat exchange box descended, the hot water that has lightened with regard to having promoted from bottom to top to be heated in the heat absorber rose, thereby has formed the water cycle of system.Because water constantly is heated in heat absorber, heat release constantly in heat exchange box and cooling off, thereby the circulation of water is constantly carried out, the water in the heat exchange box is heated soon.Heated water can not directly be drunk, but the bottom of a pan by being contained in metal heat exchange pot in the heat exchange box and a pot wall conduct heat in the pot, makes the clean cold water in the pot be heated to boiling, and this moment is promptly drinkable, can cook again.

Metal pan (19) and pot cover (20) will be used the rubber cushion good seal, with prevent Motor Vehicle under steam vehicle body rock and cause that hot water is excessive.The top of pot cover is provided with automatic control pressure vent (21), when the steam in the pot surpasses 1 barometric pressure, and just can automatic vent.

At the top of last water connecting tube (6), swelling water tank (15) is housed, in order to the swell increment of the circulating water in the system of accommodating when water temperature raises, and the air in the circulating water in the system can be discharged from water tank.The middle and upper part of water tank is provided with overflow pipe (16), and when water filling in system, unnecessary water can overflow from water tank by overflow pipe (16) like this.Top in water is provided with water inlet (17), so that in order to water filling in system.Water inlet (17) can not be sealed, and communicating with atmosphere with assurance works system under normal pressure.In order to observe the water level of swelling water tank, at the other glass tube water level gauge (18) that is provided with of water tank, so that moisturizing in time.

Because setting up of swelling water tank, and communicate with atmosphere, the heat-transfer working medium in the device is reasonably circulated, in the ordinary course of things, the water temperature of heat exchange box (7) lining can not surpass 100 ℃ and cause boiling.But under the situation of working long hours, owing to absorb heat greater than heat radiation, the water of swelling water tank (15) lining also may cause that boiling, the way of solution are regulating valve (10) to be housed carry out the water flow adjusting because of being subjected to the convection current conduction on backwater connecting tube (9).When not needing work, but throttle down (10) disconnects loop, make water stop circulation, though this moment, heat still can be in the mode of convection current, lentamente by last water connecting tube (6) to swelling water tank (15) heat release, but because heat radiation this moment then can make work stop more than or equal to heat absorption.

Fig. 2 is the connection diagram of return pipe of the present utility model and heat absorber.Backwater connecting tube (9) will be connected on the bottom (11) of heat absorber, and Draw off valve (12) is installed, so that blowdown and the water put in the clean system use.

Fig. 3 is a drinking-water, the waste heat recovering energy conserving installation drawing that heating is dual-purpose.Its heat absorber in suction tude (2) except 2 water pipes (13) are housed.The high-performance heat transfer components heat pipe (22) that is sealed with working medium in the pipe also has been installed endways, in order to reclaiming the waste heat of suction tude end, and by radiating end in heat absorber water interlayer and go up water heat release in the water connecting tube.Certainly, water pipe (13) also can adopt the high-performance heat transfer components heat pipe.

In order to improve heat exchange efficiency, the efficient heat transfer heat pipe (23) that is sealed with working medium in 1 to 20 pipe is housed between metal pan (19) and heat exchange box (7), present embodiment is selected 3 for use.The heat absorbing end of heat pipe is installed in the hot water of heat exchange box, to absorb heat.Radiating end is installed and is stretched in the metal pan, and the cold water heat release in pot, and the cold water hot area increases greatly in the metal pan thereby make, and the hot water boiling time is shortened, and the heat exchange effect obviously improves.

For convenience of drinking hot water, the bottom in metal pan (19) is provided with outlet pipe and tap water nozzle (24) for the use that discharges water.In order to satisfy the needs of heating in the car, be connected on the radiator (26) being provided with heat supply outlet pipe (25) on the heat exchange box, be provided with cold-water return pipe (27) in the lower end of radiator, be connected on the return pipe (9) between heat exchange box and the heat absorber, heat supply outlet pipe (25) and cold-water return pipe are equipped with valve (28), so that when not needing heating, the use of blinding off a line.

Fig. 4 is the mounting structure figure of heat absorber and motor engine exhaust gas pipe.

It is that an end of heat absorber suction tude (2) and the one side of outlet pipe opening are joined, the other end uses as outlet pipe, when the needs heat absorber is worked, can open the valve B of suction tude, close the valve C on the outlet pipe, waste gas is just discharged outside the car by heat absorber suction port (2), otherwise, when not needing heat absorber work, then open exhaust valve (C), close heat absorber suction tude valve B.Its advantage is: under the situation that does not influence the motor normal exhaust, can adjust the caloric receptivity of heat absorber, and close heat absorber as required, make waste heat return the receipts energy saving device to quit work.

Claims (8)

1, a kind of by heat absorber, last water connecting tube (6), backwater connecting tube (9), the automobile residual heat that parts such as heat exchange box are formed reclaims energy saving device, it is characterized in that it also includes metal heat exchange pot (19) and swelling water tank (15), and the efficient heat conducting tube (22) that is sealed with working medium in efficient heat-absorbing water pipe (13) and the pipe is installed in the suction tude (2) of heat absorber and in the metal heat exchange pot, (23) form, and be that working medium is carried out transmission of heat with circulating water, said swelling water tank (15), its lower end is connected with heat absorber by water inlet (6), and be connected through hot water cross pipe (14) and heat exchange box (7) upper end, the lower end of heat exchange box (7) is connected with the lower end of heat absorber through backwater connecting tube (9).

2, according to the said device of claim 1, it is characterized in that said swelling water tank (15) is the top that is in water connecting tube (6), it is by overflow pipe (16), and intake pipe (17) and glass tube water level gauge are formed.

3, according to the said device of claim 1, it is characterized in that saidly heat-absorbing water pipe (13) being installed in outlet pipe (2) and efficient heat conducting tube (22) can be 1 to 5 scope, and the heat pipe (23) of installation is 1 to 20 scope between a metal heat exchange pot (19) and heat exchange box (7).

4,, it is characterized in that said return pipe (9) will be connected on the bottom (11) of heat absorber, and Draw off valve (12) is installed according to the said device of claim 1.

5, according to the said device of claim 1, it is characterized in that said heat exchange box (7) and return pipe (9), can connect by a radiator (26) by heat supply outlet pipe (25) and cold-water return pipe (27) respectively, on heat supply outlet pipe (25) and cold-water return pipe (27), a valve (28) is installed respectively simultaneously.

6,, it is characterized in that being equipped with on the said return pipe (9) regulating valve (10) according to the said device of claim 1.

7,, it is characterized in that valve B being installed in the said heat absorber suction tude (2) and valve C being installed in outlet pipe according to the said device of claim 1.

8, according to claim 1 or 5 said devices, it is characterized in that the said water connecting tube (6) of going up, backwater connecting tube (9), heat supply outlet pipe (25) and cold-water return pipe (27) can use temperature resistant rubber hose or plastic tube.

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