CN201293574Y - Novel heat exchanger - Google Patents

Abstract

The utility model discloses a new-type heat exchanger, which includes an upper shell with air inlet and air outlet, wherein, the upper shell is connected with a heat exchange inner core, a lower shell is provided at the bottom of the heat exchange inner core, the heat exchange inner core includes a heat exchanger tube body integrated by heat-absorbing slices and water pipes, the heat-absorbing slices are longitudinally provided in the inner side of the water pipes, the middle part of the heat exchanger tube is provided with an exhausting pipe communicated to the air outlet, the air inlet is communicated to the heat-absorbing slices, both ends of the heat exchanger tube body are respectively permanently installed with an upper cover and a lower cover, the surfaces of the upper cover and lower cover copulated with the heat exchanger tube body are opened with channels, the channels on the upper cover and lower cover are communicated with the water pipe on the heat exchanger tube body to form a waterway, and the water inlet pipe and water outlet pipe are provided on the channels on the upper cover or the lower cover. The design allows the water pipeline to have better heat transmission effect and more simple processing technique without welding and paint coating.

Description

A kind of novel heat exchanger

Technical field

The utility model relates to the heat exchanger between a kind of gas and the liquid, is the heat reclaim unit to gas heater flue gas and other field specifically.

Background technology

On gas heater and some household warmings, heat exchanger is installed all at present, so that water or air are heated.Especially for the on-condensing gas heater, because flue-gas temperature is up to 250～270 ℃, take away sizable a part of heat, cause energy waste, for utilizing this part heat of being taken away by flue gas as far as possible, people set up a cover secondary heat exchanging system on gas heater, normally adopt " fin+pipe " formula structure.Though acidic gas in flue gas does not produce corrosion to any metal material when gaseous state, but when flue-gas temperature drops to certain value, water vapour in the flue gas can condense into water, acidic gas in flue gas is met water and is then generated acid, acid meeting heavy corrosion copper material, for this reason, the method that now can adopt is: 1, be coated with one deck anti-corrosion material on the surface that contacts with flue gas or condensed water on the copper heat exchanger; 2, make copper material into aluminium, because of aluminium material surface can generate layer oxide film, this oxide-film can prevent that material further is corroded.More than two kinds of methods separately shortcoming is all arranged.The welding procedure of aluminum pipe is immature, is easy to generate weld defect or outward appearance is ugly, thereby seldom is used.The scheme that the copper material surface is coated with anti-corrosion material has the acid corrosion-resistant except requiring anti-corrosion material, also requiring can be high temperature resistant, have good adhesive, coating can cover the copper material all surface that may touch condensed water fully between coating and the copper material, coating layer thickness can not too greatly can not be too little, because of coating material is poor conductor, too thick meeting influence the heat exchange effect, too thinly be not easy to cover all surface, can satisfy above the requirement simultaneously and be actually very difficult.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provide a kind of thermal efficiency height, power consumption less, the heat exchanger of long service life.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of novel heat exchanger, it comprises the upper shell of bringing gas port and gas outlet into, upper shell is connected with the heat exchange inner core, heat exchange inner core bottom is provided with lower house, described heat exchange inner core comprises by heat absorbing sheet and the integrated heat exchanger tube of ventilating water pipe, described heat absorbing sheet vertically is arranged on the inboard of ventilating water pipe, the heat exchanger tube middle part is provided with blast pipe and communicates with the gas outlet, air inlet communicates with heat absorbing sheet, the two ends of described heat exchanger tube are installed with upper end cover and bottom end cover respectively, the face that upper end cover and bottom end cover cooperate with heat exchanger tube has raceway groove, raceway groove on upper end cover and the bottom end cover communicates with ventilating water pipe on the heat exchanger tube and forms the water route, and the raceway groove of described upper end cover or bottom end cover is provided with water inlet pipe and outlet pipe;

As improvement of the technical scheme, described lower house is provided with apopore;

As further improvement in the technical proposal, described raceway groove is provided with sealing gasket;

The beneficial effects of the utility model are: because upper and lower end cap and heat exchanger tube adopt screw attachment, water lines need not welded, and can guarantee good surface appearance; Material adopts has very strong antiseptic power aluminium, thereby does not need coating; Heat absorbing sheet and water lines are one-body molded, and heat-transfer effect is better, processing technology is simpler, thereby can be widely used in the heat exchange of gas and liquid on gas heater and some household warmings.

Description of drawings

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

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a heat exchange core arrangement broken away view of the present utility model.

The specific embodiment

With reference to Fig. 1; Fig. 2; a kind of novel heat exchanger; it comprises the upper shell 1 of bringing gas port 11 and gas outlet 12 into; upper shell 1 is connected with heat exchange inner core 2; heat exchange inner core 2 bottoms are provided with lower house 3; described heat exchange inner core 2 comprises by heat absorbing sheet 41 and ventilating water pipe 42 integrated heat exchanger tube 4; described heat exchanger tube 4 is made as square according to actual needs; arbitrary shapes such as circle; described heat absorbing sheet 41 vertically is arranged on the inboard of ventilating water pipe 42; heat exchanger tube 4 middle parts are provided with blast pipe 8 and communicate with gas outlet 12; air inlet 11 communicates with heat absorbing sheet 41; the two ends of described heat exchanger tube 4 are installed with upper end cover 5 and bottom end cover 6 respectively; the face that upper end cover 5 and bottom end cover 6 cooperate with heat exchanger tube 4 has raceway groove 7; raceway groove 7 on upper end cover 5 and the bottom end cover 6 communicates with ventilating water pipe 42 on the heat exchanger tube 4 and forms the water route; the raceway groove 7 of described upper end cover 5 or bottom end cover 6 is provided with water inlet pipe 8 and outlet pipe 9; the water route form that the utility model forms is diversified; as: through type; formula etc. back and forth; in a word so long as, all belong to protection domain of the present utility model with essentially identical means realization the purpose of this utility model.

The operation principle of this product is: when the flue gas of high temperature when air inlet 11 enters housing 1, cold water enters in the ventilating water pipe 42 of heat exchange inner core 2 from water inlet pipe 8, because heat absorbing sheet 41 vertically is arranged on the ventilating water pipe 42, so cold water absorbs high-temperature flue gas heat preheating current, the while cooled flue gas, cooled smoke is discharged outdoor by blast pipe 8, hot water is discharged from outlet pipe 9, in addition, because this product adopts the extrusion modling of corrosion resistant aluminium one, and the raceway groove 7 that adopts upper end cover 5 and bottom end cover 6 communicates with ventilating water pipe 42 and forms the water route, thereby need not weld, so making is very easy, long service life.

When this product is applied to the secondary heat exchanging system of gas heater, because high-temperature flue gas has certain aqueous vapor, thus in cooled flue gas, can separate out condensed water, thereby need lower house 3 to be provided with apopore 31, so that condensed water is discharged outdoor; In addition, this product can be provided with sealing gasket by described raceway groove 7 in order to make heat exchanger tube 4 better with upper end cover 5 and bottom end cover 6 sealing effectiveness.

This product is not limited to as in the water heater water being heated, can also in water inlet pipe 8, inject hot water, cold air heating back 12 discharges of adopting heat absorbing sheet 41 that air inlet 11 is entered from the gas outlet, in the use that is fit to warmer, because the heat utilization efficiency of this product greatly improves, thereby can be widely used in the heat exchange of gas and liquid on gas heater and some household warmings.

Claims (3)

1. novel heat exchanger, it is characterized in that: comprise the upper shell (1) of bringing gas port (11) and gas outlet (12) into, upper shell (1) is connected with heat exchange inner core (2), heat exchange inner core (2) bottom is provided with lower house (3), described heat exchange inner core (2) comprises by heat absorbing sheet (41) and the integrated heat exchanger tube of ventilating water pipe (42) (4), described heat absorbing sheet (41) vertically is arranged on the inboard of ventilating water pipe (42), heat exchanger tube (4) middle part is provided with blast pipe (8) and communicates with gas outlet (12), air inlet (11) communicates with heat absorbing sheet (41), the two ends of described heat exchanger tube (4) are installed with upper end cover (5) and bottom end cover (6) respectively, the face that upper end cover (5) and bottom end cover (6) cooperate with heat exchanger tube (4) has raceway groove (7), raceway groove (7) on upper end cover (5) and the bottom end cover (6) communicates with ventilating water pipe (42) on the heat exchanger tube (4) and forms the water route, and the raceway groove (7) of described upper end cover (5) or bottom end cover (6) is provided with water inlet pipe (8) and outlet pipe (9).

2. a kind of novel heat exchanger according to claim 1 is characterized in that: described lower house (3) is provided with apopore (31).

3. a kind of novel heat exchanger according to claim 1 is characterized in that: described raceway groove (7) is provided with sealing gasket.

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