Parking heater

Abstract

A parking heater relates to the technical field of heaters and comprises a burner (1), a heat exchange fan (2) and a shell (3) wrapped outside, the shell (3) is provided with a preheating pipeline (9), an air inlet (10) of the preheating pipeline (9) is arranged at a hot air outlet (8) of the shell (3), and an air outlet (11) of the preheating pipeline (9) is arranged at a cold air inlet (7) of the shell (3) and in front of the heat exchange fan (2). By arranging the preheating loop, the temperature of the engine body and the temperature of rib combustion air participating in combustion are rapidly increased, and fuel oil can reach the optimal combustion state in a combustion chamber in a short time, so that the heating efficiency is improved, the preheating time of the engine body is shortened, the fuel oil consumption is reduced, and the purposes of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to a fuel parking heater. Background Art

[0002] The parking heater uses fuel as fuel, is independent of the car engine, and can heat vehicles, ships and other equipment independently. It solves the embarrassment that the heater of the vehicle needs to run for a long time before it can release hot air. The parking heater is a necessary device for heating the car and heating in winter in cold areas. However, it was found during use that since the parking heater is generally used in cold weather, especially in severe cold areas, due to the low temperature, it takes a long time for the heater to start and enter the normal combustion state, and the body and the air involved in the combustion to rise from low temperature to the normal operating temperature. During this period, the fuel is in an incomplete combustion state, which not only increases fuel consumption, but also causes serious carbon deposition in the exhaust pipe, which will soon be blocked and cause the burner to fail to ignite. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a parking heater with a self-preheating function.

[0004] The technical solution of the utility model is: a parking heater, comprising a burner, a heat exchange fan and a shell wrapped outside, the shell is provided with a preheating pipeline, the air inlet of the preheating pipeline is arranged at the hot air outlet of the shell, and the air outlet of the preheating pipeline is arranged at the cold air inlet of the shell, in front of the heat exchange fan.

[0005] The technical effect of the utility model is that by setting a preheating circuit, the engine body and the combustion air involved in the combustion are quickly heated up, so that the fuel can reach the optimal combustion state in the combustion chamber in a short time, thereby improving the heating efficiency, reducing the preheating time and fuel consumption, and achieving the purpose of energy saving and emission reduction. The problem of the existing parking heater having a long warm-up time, easy carbon deposition and exhaust pipe blockage is solved. The service life and maintenance cycle of the parking heater are extended, and the use cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the utility model;

[0007] Figure 2 It is a schematic diagram of the structure of the utility model after the shell part is opened. DETAILED DESCRIPTION

[0008] like Figure 1 and 2As shown, a parking heater comprises a burner 1, a heat exchange fan 2 and a shell 3 wrapped therein. A combustion chamber is arranged inside the burner 1, and a combustion air inlet 4 and an exhaust gas outlet 5 are arranged therein. A heat exchange fin 6 is arranged outside the combustion chamber. A cold air inlet 7 is arranged at the front end of the shell 3, and a hot air outlet 8 is arranged at the rear end. The heat exchange fan 2 is arranged at the cold air inlet 7. The shell 3 is provided with a preheating pipeline 9. The air inlet 10 of the preheating pipeline 9 is arranged at the hot air outlet 8 of the shell 3. The air outlet 11 of the preheating pipeline 9 is arranged at the cold air inlet 7 of the shell 3, in front of the heat exchange fan 2. After the burner 1 is ignited, the temperature of the body rises, and the heat exchange fan 2 drives the air to enter from the cold air inlet 7, and the air is heated by the heat exchange fins 6 and discharged from the hot air outlet 8. A part of the heated air carries the heat and flows back to the cold air inlet 7 in front of the heat exchange fan 2 through the preheating pipeline 9, and re-participates in the heat exchange process. The circulation of a portion of the hot air causes the engine body to heat up quickly, and the engine body quickly enters a hot state from a cold state, shortening the engine body preheating time and reducing the generation of carbon deposits.

[0009] There are multiple preheating pipelines 9. Multiple pipelines are dispersedly arranged to make the structure more compact and allow more air to participate in the circulation.

[0010] There are four preheating pipelines 9 , which are respectively distributed on both sides of the shell 3 .

[0011] The combustion air inlet 4 of the burner 1 is provided with a combustion air preheating pipe 12 connected to the hot air outlet 8. The combustion air preheating pipe 12 can allow part of the hot air to enter the combustion chamber to participate in combustion, thereby improving combustion efficiency.

[0012] The combustion air inlet 4 of the burner 1 is provided with a combustion air preheating pipe 12 connected to one of the preheating pipelines 9, so that the heated hot air enters the combustion chamber from the preheating pipeline 9 through the combustion air preheating pipe 12 to participate in combustion. The increase in the combustion air temperature helps the fuel to burn fully.

[0013] The connection between the combustion air preheating pipe 12 and the preheating pipeline 9 is provided with an "L"-shaped joint 13. The "L"-shaped joint 13 is buried in the preheating pipeline 9 to intercept the hot air to the combustion chamber.

[0014] There are four hot air outlets 8. The four hot air outlets 8 correspond to the four preheating pipelines 9 respectively, which can beautify the shape of the treatment plant on the one hand, and more reasonably distribute the hot air flow direction on the other hand.

Claims

1. A parking heater, comprising a burner (1), a heat exchange fan (2) and a shell (3) wrapped therearound, characterized in that: The shell (3) is provided with a preheating pipeline (9), an air inlet (10) of the preheating pipeline (9) is arranged at the hot air outlet (8) of the shell (3), and an air outlet (11) of the preheating pipeline (9) is arranged at the cold air inlet (7) of the shell (3), in front of the heat exchange fan (2).

2. The parking heater according to claim 1, characterized in that There are multiple preheating pipelines (9).

3. The parking heater according to claim 1, characterized in that There are four preheating pipelines (9), which are respectively distributed on both sides of the shell (3).

4. The parking heater according to any one of claims 1 to 3, characterized in that: A combustion air preheating pipe (12) is provided at the combustion air inlet (4) of the burner (1) and is connected to the hot air outlet (8).

5. The parking heater according to claim 2 or 3, characterized in that: A combustion air preheating pipe (12) is provided at the combustion air inlet (4) of the burner (1) and is connected to one of the preheating pipelines (9), so that the heated hot air enters the combustion chamber from the preheating pipeline (9) through the combustion air preheating pipe (12) to participate in combustion.

6. The parking heater according to claim 5, characterized in that An "L"-shaped joint (13) is provided at the connection between the combustion air preheating pipe (12) and the preheating pipeline (9).

7. The parking heater according to claim 3, characterized in that There are four hot air outlets (8).

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