CN214581403U

CN214581403U - Heat exchanger of warm air blower

Info

Publication number: CN214581403U
Application number: CN202120371848.0U
Authority: CN
Inventors: 张冉; 樊侠; 朱晓栋; 梁翠娟
Original assignee: Qinhuangdao Aosener Garment Co ltd
Current assignee: Qinhuangdao Aosener Garment Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-02
Anticipated expiration: 2031-02-08

Abstract

The utility model relates to a warm air blower heat exchanger, which comprises a combustion chamber cylinder, a combustion chamber inner cylinder, a combustion chamber outer cylinder and a ventilation heat exchange tube; the inner cylinder of the combustion chamber is sleeved outside the cylinder body of the combustion chamber; the outer cylinder of the combustion chamber is sleeved outside the inner cylinder of the combustion chamber, a heat exchange chamber is formed between the outer cylinder of the combustion chamber and the inner cylinder of the combustion chamber, the heat exchange chamber is communicated with the cylinder of the combustion chamber, and the top end of the outer cylinder of the combustion chamber is provided with a smoke exhaust pipe; the heat exchange tube is provided with a plurality of heat exchange tubes, the heat exchange tubes are spirally wound on the outer side of the inner tube of the combustion chamber and are arranged in the heat exchange chamber at intervals, and each heat exchange tube is internally provided with an inner fin. The utility model has the advantages of high heat exchange efficiency and high heating speed.

Description

Heat exchanger of warm air blower

Technical Field

The utility model relates to a technical field of electric fan heater especially relates to an electric fan heater heat exchanger.

Background

Fuel oil fan heaters are equipment commonly used for heating field tents, large fixed barracks and civil houses. The fuel oil warm air blower has the advantages of good safety, good strength, long service life, low temperature resistance and the like.

The heat exchanger is one of the core components of the fuel heater unit. When the fuel oil fan heater is used, the heat exchanger heats cold air or circulating air through high-temperature flue gas generated by fuel oil combustion so as to heat the interior of a tent or a civil house.

The traditional heat exchanger has the advantages of stable performance, convenient use and the like, but the problems of low heat exchange efficiency and low heating speed still exist in the actual use process.

SUMMERY OF THE UTILITY MODEL

To the above problem, one of the purposes of the utility model is to provide a fan heater heat exchanger that heat exchange efficiency is high, rate of heating is fast.

In order to realize the purpose, the utility model provides a warm air blower heat exchanger, which comprises a combustion chamber cylinder, a combustion chamber inner cylinder, a combustion chamber outer cylinder and a ventilation heat exchange tube; the inner cylinder of the combustion chamber is sleeved outside the cylinder body of the combustion chamber; the outer cylinder of the combustion chamber is sleeved outside the inner cylinder of the combustion chamber, a heat exchange chamber is formed between the outer cylinder of the combustion chamber and the inner cylinder of the combustion chamber, the heat exchange chamber is communicated with the cylinder of the combustion chamber, and the top end of the outer cylinder of the combustion chamber is provided with a smoke exhaust pipe; the heat exchange tube is provided with a plurality of heat exchange tubes, the heat exchange tubes are spirally wound on the outer side of the inner tube of the combustion chamber and are arranged in the heat exchange chamber at intervals, and each heat exchange tube is internally provided with an inner fin.

Furthermore, the two ends of the plurality of ventilation heat exchange tubes are connected with tube plates in a penetrating manner, and the tube plates are respectively connected with the inner cylinder of the combustion chamber and the outer cylinder of the combustion chamber.

Furthermore, an annular fixing plate is arranged between the two tube plates and connected with the plurality of ventilation heat exchange tubes.

Further, the inner fins are arranged along the length direction of the ventilation heat exchange tube.

Furthermore, the outer wall of the ventilation heat exchange tube is provided with an anti-scaling coating.

Furthermore, the bottom end of the combustion chamber cylinder body is symmetrically provided with smoke outlet pipes, and the other end of each smoke outlet pipe is communicated with the heat exchange chamber.

The utility model discloses electric fan heater heat exchanger's beneficial effect does:

1. in the heat exchanger of the warm air blower, the heat exchange chamber is formed between the inner cylinder of the combustion chamber and the outer cylinder of the combustion chamber, and the plurality of ventilation heat exchange tubes are spirally arranged in the heat exchange chamber, so that the heat exchange area and the shell pass of cold air flowing through the heat exchange chamber are increased, and the heat exchange efficiency and the heating speed of the cold air are improved;

2. the utility model discloses among the electric fan heater heat exchanger, all be equipped with the inner fin in each ventilation heat exchange tube, the inner fin sets up along the length direction of ventilation heat exchange tube, in increase ventilation heat exchange tube heat transfer area, makes the inner wall of ventilation heat exchange tube be difficult for piling up the dirt, has further guaranteed the utility model discloses a heat exchange efficiency.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention;

figure 3 is a cross-sectional view of a ventilation heat exchange tube in an embodiment of the present invention.

Description of reference numerals: 1. a combustion chamber cylinder; 11. discharging the smoke tube; 2. an inner barrel of the combustion chamber; 3. a combustion chamber outer cylinder; 31. a smoke exhaust pipe; 32. ash discharging holes; 33. a dust discharging cover; 4. a ventilation heat exchange pipe; 41. an inner fin; 42. an anti-fouling coating; 5. a tube sheet; 51. and (7) fixing the plate.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1, for the utility model discloses a warm air blower heat exchanger, including combustion chamber barrel 1, combustion chamber inner tube 2, combustion chamber urceolus 3 and ventilation heat exchange tube 4, the oil feeding system of fuel warm air blower is connected to combustion chamber barrel 1, and inside fuel oil combustion that supplies produces high temperature gas. The bottom end of the combustion chamber cylinder body 1 is symmetrically provided with smoke outlet pipes 11. The combustion chamber inner cylinder 2 is sleeved outside the combustion chamber cylinder 1 and is connected with the smoke outlet pipe 11. The outer combustion chamber cylinder 3 is sleeved outside the inner combustion chamber cylinder 2, and a heat exchange chamber is formed between the outer combustion chamber cylinder 3 and the inner combustion chamber cylinder 2. The heat exchange chamber is communicated with the combustion chamber cylinder 1 through a smoke outlet pipe 11, and a smoke exhaust pipe 31 is arranged at the top end of the combustion chamber outer cylinder 3. The utility model discloses during the use, the high temperature gas in the combustion chamber barrel 1 will be discharged to the heat transfer chamber through discharging fume 31 indoor, finally discharges from discharging fume pipe 31.

Referring to fig. 1 and 2, a plurality of ventilation heat exchange tubes 4 are arranged in the heat exchange chamber at intervals, and the ventilation heat exchange tubes 4 are used for guiding cold air to exchange heat with high-temperature flue gas in the heat exchange chamber. In order to improve the utility model discloses a heat exchange efficiency, each ventilation heat exchange tube 4 is all around the outside of locating combustion chamber inner tube 2, and not contact with the outer wall of combustion chamber inner tube 2. All be equipped with inner fin 41 in each ventilation heat exchange tube 4, inner fin 41's setting has increased ventilation heat exchange tube 4's heat transfer area, has improved the utility model discloses a heat exchange efficiency.

As a specific implementation of the warm air blower heat exchanger provided by the utility model, refer to fig. 1 and fig. 2, the both ends through connection of a plurality of ventilation heat exchange tubes 4 has tube sheet 5, and two tube sheets 5 all are connected with combustion chamber inner tube 2 and combustion chamber urceolus 3, enclose synthetic heat transfer room with combustion chamber urceolus 3 and combustion chamber inner tube 2 to it is fixed to support a plurality of ventilation heat exchange tubes 4.

As a specific embodiment of the warm air blower heat exchanger provided by the utility model, refer to fig. 1 and fig. 2, be equipped with fixed plate 51 between two tube sheets 5, fixed plate 51 is connected with a plurality of ventilation heat exchange tubes 4. The fixing plate 51 is an annular plate, and the outer ring and the inner ring of the fixing plate are not in contact with the combustion chamber inner barrel 2 and the combustion chamber outer barrel 3, so that the ventilation heat exchange tubes 4 are fixed, and the circulation of high-temperature flue gas in the heat exchange chambers is not influenced.

As a specific embodiment of the warm air blower heat exchanger, refer to fig. 1 and fig. 3, interior fin 41 equipartition is in ventilation heat exchange tube 4 to along the length direction setting of ventilation heat exchange tube 4, be difficult for the deposition between the adjacent interior fin 41, further guaranteed the heat exchange efficiency of ventilation heat exchange tube 4.

As a specific implementation of the warm air blower heat exchanger that the utility model provides, refer to fig. 1 and fig. 3, after 4 outer walls of ventilation heat exchange tube had the cigarette dirt attached to, can influence heat exchange efficiency, the utility model discloses well 4 outer walls of ventilation heat exchange tube are equipped with scale control coating 42, and scale control coating 42 is the brilliant coating of nanometer pottery.

As a specific embodiment of the warm air blower heat exchanger provided by the present invention, referring to fig. 1, the heat exchange chamber is provided with an ash discharge hole 32 at the lower end of the outer cylinder 3 of the combustion chamber, and an ash discharge cover 33 is provided at the ash discharge hole 32. The utility model discloses heat transfer burner can dismantle ash discharge lid 33 after a period of use, clears up the deposition in the heat transfer chamber.

The utility model discloses heat transfer burner's implementation principle does: the combustion oil in the combustion chamber cylinder 1 is combusted, high-temperature flue gas is generated, and the high-temperature flue gas is discharged into the heat exchange chamber through the smoke outlet pipe 11 and finally discharged from the smoke discharge pipe 31; the ventilation heat exchange tube 4 is spirally wound in the heat exchange chamber, cold air or circulating gas flowing in the ventilation heat exchange tube 4 exchanges heat with high-temperature flue gas in the heat exchange chamber, the cold air and the circulating air which finish heat exchange are discharged from the ventilation heat exchange tube 4, and heating is performed on a corresponding space.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A warm air blower heat exchanger is characterized by comprising a combustion chamber cylinder (1), a combustion chamber inner cylinder (2), a combustion chamber outer cylinder (3) and a ventilation heat exchange tube (4);

the combustion chamber inner cylinder (2) is sleeved outside the combustion chamber cylinder (1);

the outer combustion chamber cylinder (3) is sleeved outside the inner combustion chamber cylinder (2), a heat exchange chamber is formed between the outer combustion chamber cylinder (3) and the inner combustion chamber cylinder (2), the heat exchange chamber is communicated with the combustion chamber cylinder (1), and a smoke exhaust pipe (31) is arranged at the top end of the outer combustion chamber cylinder (3);

the ventilation heat exchange tubes (4) are arranged in a plurality of spiral winding modes and are arranged on the outer side of the combustion chamber inner tube (2) and arranged in the heat exchange chamber at intervals, and inner fins (41) are arranged in the ventilation heat exchange tubes (4).

2. The warm air blower heat exchanger according to claim 1, characterized in that the two ends of the plurality of ventilation and heat exchange tubes (4) are connected with tube plates (5) in a penetrating manner, and the tube plates (5) are respectively connected with the combustion chamber inner cylinder (2) and the combustion chamber outer cylinder (3).

3. The warm-air drier heat exchanger according to claim 2, wherein an annular fixing plate (51) is arranged between the two tube plates (5), and the fixing plate (51) is connected with a plurality of ventilation heat exchange tubes (4).

4. The warm-air drier heat exchanger according to claim 1, wherein the inner fins (41) are arranged along the length of the ventilation heat exchange tube (4).

5. Warm-air blower heat exchanger according to claim 1, characterized in that the outer wall of the ventilation heat exchange tube (4) is provided with an anti-scaling coating (42).

6. The heat exchanger of the warm air blower according to claim 1, wherein the bottom end of the combustion chamber cylinder (1) is symmetrically provided with smoke outlet pipes (11), and the other end of each smoke outlet pipe (11) is communicated with the heat exchange chamber.