CN212177259U

CN212177259U - Engine tail gas waste heat recovery heat exchanger

Info

Publication number: CN212177259U
Application number: CN202020971652.0U
Authority: CN
Inventors: 兰永宽; 陈钦松; 刘涛涛
Original assignee: Shanghai Weihang Equipment Technology Co ltd
Current assignee: Shanghai Weihang Equipment Technology Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-12-18
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses an engine tail gas waste heat recovery heat exchanger, which comprises an outer sleeve arranged outside a tail gas pipe, wherein a spiral fin is arranged between the tail gas pipe and the outer sleeve, one side of the outer sleeve is provided with a gas inlet joint, the other side of the outer sleeve is provided with a gas outlet joint, and two ends of the outer sleeve are provided with pipe caps; the utility model provides a pair of engine tail gas waste heat recovery heat exchanger has solved automobile and for engineering machine tool equipment engine tail gas waste heat recovery's problem, helps improving engine fuel economy, practices thrift petroleum resources, reduces greenhouse gas emission, through the practical application of engine tail gas waste heat recovery technique, has practiced thrift 50% energy resource consumption, brings apparent social and economic benefits.

Description

Engine tail gas waste heat recovery heat exchanger

Technical Field

The invention relates to the technical field of energy conservation, in particular to an engine tail gas waste heat recovery heat exchanger.

Background

Because energy is more and more tense, with the further development of energy saving and consumption reduction work, at present, engine exhaust used by automobiles and engineering mechanical equipment in domestic and foreign markets is directly exhausted to the atmospheric environment through an exhaust pipe and a silencer, and the waste heat of the engine exhaust is not recovered, so that the waste of the waste heat of the engine exhaust is caused. To above-mentioned defect, this application scheme improves prior art, has proposed an engine exhaust waste heat recovery heat exchanger.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and the technical scheme who adopts provides an engine exhaust waste heat recovery heat exchanger, helps improving engine fuel economy, practices thrift oil resources, reduces greenhouse gas emission, and wherein, concrete technical scheme is:

including setting up the outer tube in the tail gas pipe outside, set up the spiral fin between tail gas pipe and the outer tube, set up the air-in connector in one side of outer tube, the opposite side sets up the joint of giving vent to anger, sets up the pipe cap at outer tube's both ends.

The engine exhaust gas waste heat recovery heat exchanger comprises: flanges are arranged at two ends of the tail gas pipe.

The engine exhaust gas waste heat recovery heat exchanger comprises: the tail gas pipe and the outer sleeve are bent, or the tail gas pipe and the outer sleeve are linear.

The utility model discloses for prior art have following beneficial effect: the problem of engine exhaust waste heat recycling for automobiles and engineering machinery equipment is solved, the fuel economy of the engine is improved, petroleum resources are saved, greenhouse gas emission is reduced, 50% of energy consumption is saved through the practical application of the engine exhaust waste heat recycling technology, and remarkable social benefit and economic benefit are brought.

Drawings

Fig. 1 is a schematic structural diagram of an engine exhaust gas waste heat recovery heat exchanger.

Fig. 2 is a schematic diagram of an engine exhaust gas waste heat recovery heat exchanger.

In the figure:

1 flange, 2 pipe caps, 3 air outlet joints, 4 outer sleeves, 5 tail gas pipes, 6 spiral fins, 7 tail gas pipe elbows, 8 outer sleeve pipe elbows, 9 air inlet joints, 10 engine tail gas exhaust interfaces, 11 engines, 12 engine tail gas outlets and 13 silencers

Detailed Description

The invention is further described with reference to the following figures and examples.

The utility model provides an engine exhaust waste heat recovery heat exchanger, as shown in figure 1, including setting up outer tube 4 in the tail gas pipe 5 outside, set up spiral fin 6 between tail gas pipe 5 and the outer tube 4, set up air inlet joint 9 in one side of outer tube 4, the opposite side sets up the joint 3 of giving vent to anger, sets up pipe cap 2 at the both ends of outer tube 4. Flanges 1 are arranged at two ends of the tail gas pipe 5, the tail gas pipe 5 and the outer sleeve 4 are bent, or the tail gas pipe 5 and the outer sleeve 4 are linear.

The working principle is as follows:

the preheating and recycling heat exchanger for the tail gas of the engine is characterized in that when the engine works, the generated high-temperature tail gas (300-400 ℃) is connected with an inlet of a waste heat recycling heat exchanger for the tail gas of the engine through an exhaust port 10 of the tail gas of the engine, 11 high-temperature tail gas of the engine is discharged through a tail gas pipe 5, at the moment, a low-temperature medium to be heated enters an outer sleeve 4 through an air inlet connector 9, the medium is in full contact with the outer wall of the tail gas pipe 5 and a spiral fin 6 to exchange heat, the heated high-temperature medium is conveyed to a required occasion through an air outlet connector 3 to exchange heat energy, and the low-temperature tail gas of the engine is discharged.

As shown in the attached figure 2, the engine tail gas waste heat recovery heat exchanger is connected with an engine tail gas exhaust port through a flange 1 and a pipeline, the flange 1 at the other end of the engine tail gas preheating recovery heat exchanger is connected with a silencer 12, and the silencer exhaust port is directly communicated with the natural environment.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an engine exhaust waste heat recovery heat exchanger which characterized in that: including setting up the outer tube in the tail gas pipe outside, set up the spiral fin between tail gas pipe and the outer tube, set up the air-in connector in one side of outer tube, the opposite side sets up the joint of giving vent to anger, sets up the pipe cap at outer tube's both ends.

2. The engine exhaust gas waste heat recovery heat exchanger of claim 1, characterized in that: flanges are arranged at two ends of the tail gas pipe.

3. The engine exhaust gas waste heat recovery heat exchanger of claim 2, characterized in that: the tail gas pipe and the outer sleeve are bent.

4. The engine exhaust gas waste heat recovery heat exchanger of claim 2, characterized in that: the tail gas pipe and the outer sleeve are linear.