Double-circuit heating device for carriage

Abstract

The double-path heating device comprises a machine frame and a return air collecting hood, two heaters arranged in parallel are arranged on one side of the machine frame, air outlets of the two heaters are correspondingly connected with air supply pipes, and air openings of the air supply pipes are located on one side in the compartment. A generator for supplying power to the heater is further arranged on one side of the rack; the return air collecting hood is located on the other side, opposite to the air supply pipe opening, in the compartment, a box shell is arranged in the compartment and correspondingly located below the air supply pipe opening, the return air collecting hood is communicated with the box shell through two return air pipes, and the box shell is correspondingly communicated with the air inlets of the two heaters through pipelines and a tee joint. According to the utility model, a redundancy design is adopted, one heater is used, the other heater is standby, the two heaters can operate independently or simultaneously, rapid heating of the carriage is realized, double power supplies, namely the generator and the standby power supply are adopted, when the generator operates, the standby power supply can be continuously charged, and the temperature requirement of goods turnover transportation is met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and particularly relates to a dual - path heating device for a carriage. Background Art

[0002] When a vehicle transports goods that need to be kept at an appropriate temperature in the cold season, a heating system needs to be installed in the carriage. The heating system can be a separate hot air blower for blowing and heating, or the vehicle exhaust gas can be introduced into the coil pipes on the carriage floor for heating. Both hot air blower heating and vehicle exhaust gas heating require the vehicle engine to keep running. After the engine stops, the heating system is disconnected, and the temperature in the carriage will drop. When using a separate hot air blower for blowing, if it fails, it needs to be shut down for maintenance, which affects the goods transportation and quality, and has limitations in use and cannot meet the use requirements. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a dual - path heating device for a carriage. The device adopts a redundant design, one for use and one for backup. The two heaters can operate independently or simultaneously to quickly raise the temperature of the carriage. It adopts a dual - power supply, namely a generator and a backup power supply. When the generator is running, it can also continuously charge the backup power supply to meet the temperature requirements for goods turnover and transportation, and can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A dual - path heating device for a carriage, including a frame and a return air collecting hood. The frame is located on the outer wall of the carriage. On one side of the frame, there are two heaters arranged in parallel. The air outlets of the two heaters are respectively connected with air supply pipes, and the air outlets of the air supply pipes are located on one side inside the carriage. On one side of the frame, there is also a generator for supplying power to the heaters. The return air collecting hood is located on the other side inside the carriage opposite to the air outlet of the air supply pipe. Inside the carriage, a box shell is arranged below the air outlet of the air supply pipe. The return air collecting hood is communicated with the box shell through two return air pipes, and the box shell is correspondingly communicated with the air inlets of the two heaters through pipelines and tees.

[0005] Preferably, the frame is also provided with a backup power supply for supplying power to the heaters, and the generator is electrically connected with the backup power supply.

[0006] Preferably, a filter screen is arranged inside the collecting hood corresponding to its air inlet grille holes, and the return air pipe extends into the collecting hood and is located behind the filter screen in the air flow direction.

[0007] Preferably, the return air collecting hood is also communicated with two return air branch pipes, and small holes are arranged in a linear array on the pipe walls of the return air branch pipes.

[0008] Preferably, the air outlet of the air supply pipe is located in the upper part inside the carriage, and the return air collecting hood is located in the lower part inside the carriage.

[0009] Preferably, an oil tank is further provided at the lower part of the frame corresponding to the generator.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: two heaters and two corresponding air supply pipes adopt a redundant design, one for use and one for standby. The two heaters can operate independently or simultaneously to rapidly increase the temperature of the carriage. A dual power supply is adopted, namely a generator and a standby power supply. Both the generator and the standby power supply can supply power to the two heaters. When the generator is running, it can also continuously charge the standby power supply. By reasonably arranging the return air pipe, return air collecting hood and return air branch pipe in the cabin, the temperature in the carriage is ensured to be uniform, fully considering the operation reliability and meeting the temperature requirements for the turnover and transportation of goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a top view of the present utility model;

[0013] Figure 3 is a schematic partial structural diagram of the present utility model.

[0014] In the figure: 1 frame, 2 generator, 3 oil tank, 4 heater, 5 standby power supply, 6 air supply pipe, 7 return air collecting hood, 8 return air branch pipe, 9 box shell, 10 filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they are only corresponding to the drawings of the present application for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0016] Please refer to Figures 1-3 , the present utility model provides a technical solution: a dual - path heating device for a carriage, including a frame 1 and a return air collecting hood 7. The frame 1 is located on the outer wall of the carriage. On one side of the frame 1, there are two heaters 4 arranged in parallel. The air outlets of the two heaters 4 are respectively connected to an air supply pipe 6, and the air outlet of the air supply pipe 6 is located on one side inside the carriage. On one side of the frame 1, there is also a generator 2 for supplying power to the heaters 4. The return air collecting hood 7 is located on the other side inside the carriage opposite to the air outlet of the air supply pipe 6. Inside the carriage, a box shell 9 is provided below the air outlet of the air supply pipe 6. The return air collecting hood 7 is communicated with the box shell 9 through two return air pipes 9. The box shell 9 is correspondingly communicated with the air inlets of the two heaters 4 through pipelines and tees.

[0017] By setting two heaters 4 and two corresponding air supply ducts 6, a redundant design is adopted, with one in use and one in reserve. The two heaters 4 can operate independently or simultaneously to achieve rapid heating of the carriage. By reasonably arranging the return air duct 9, the return air collecting hood 7 and the box shell 9 in the cabin, the temperature in the cabin is ensured to be uniform, and the operation reliability is fully considered to meet the temperature requirements for cargo turnover and transportation.

[0018] It should be noted that in addition to the heating wire, the heater 4 is also equipped with a suction fan, that is, it pumps the return air to form a cycle.

[0019] Furthermore, the frame 1 is also provided with a backup power supply 5 for supplying power to the heater 4. The generator 2 is electrically connected to the backup power supply 5. A dual power supply is adopted, namely the generator 2 and the backup power supply 5. Both the generator 2 and the backup power supply 5 can supply power to the two heaters 4. When the generator 2 is running, it can also continuously charge the backup power supply 5, which is convenient to use.

[0020] Furthermore, a filter screen 11 is provided inside the collecting hood 7 corresponding to its air inlet grille holes. The return air duct 9 extends into the collecting hood 7 and is located behind the filter screen 11 in the air flow direction. By setting the filter screen 11, the dust in the air is removed to reduce dust pollution.

[0021] Furthermore, the return air collecting hood 7 is also connected to two return air branch pipes 8. The pipe wall of the return air branch pipe 8 is linearly arrayed with small holes. By adding the return air branch pipes 8, it is ensured that the air flow in the carriage can enter the return air collecting hood 7 more evenly.

[0022] In addition, the air outlet of the air supply duct 6 is located in the upper part of the carriage, and the return air collecting hood 7 is located in the lower part of the carriage, that is, the hot air blows upward and the return air is below. The layout is reasonable to ensure the uniform temperature in the carriage. A fuel tank 3 is also provided at the lower part of the frame 1 corresponding to the generator 2 to supply fuel to the generator 2.

[0023] The parts not detailed in the present utility model are prior arts. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, aiming to include all changes falling within the meaning and scope of the equivalent elements in the content of the present utility model.

Claims

1. A dual-path heating device for a carriage, comprising a frame (1) and a return air collecting hood (7), characterized in that: The frame (1) is located on the outer wall of the carriage, and two heaters (4) arranged in parallel are provided on one side of the frame (1). The air outlets of the two heaters (4) are connected to the air supply pipe (6) correspondingly, and the air outlet of the air supply pipe (6) is located on one side of the carriage; a generator (2) for supplying power to the heater (4) is also provided on one side of the frame (1); the return air collecting hood (7) is located on the other side of the carriage relative to the air outlet of the air supply pipe (6), and a box shell (9) is provided in the carriage below the air outlet of the air supply pipe (6); the return air collecting hood (7) is connected to the box shell (9) through the two return air pipes (9), and the box shell (9) is connected to the air inlets of the two heaters (4) through pipelines and a tee.

2. A dual-path heating device for a vehicle compartment according to claim 1, characterized in that: The frame (1) is also provided with a backup power supply (5) for supplying power to the heater (4), and the generator (2) is electrically connected to the backup power supply (5).

3. A dual-path heating device for a vehicle compartment according to claim 1, characterized in that: A filter screen (11) is provided inside the air collecting hood (7) corresponding to the air inlet grille hole thereof, and the return air duct (9) extends into the air collecting hood (7) and is located behind the filter screen (11) in the air flow direction.

4. A dual-path heating device for a vehicle compartment according to claim 1, characterized in that: The return air collecting hood (7) is also connected to two return air branch pipes (8), and the return air branch pipes (8) have small holes in a linear array on their walls.

5. A dual-path heating device for a vehicle compartment according to claim 1, characterized in that: The air outlet of the air supply pipe (6) is located at the upper part of the vehicle compartment, and the return air collecting hood (7) is located at the lower part of the vehicle compartment.

6. A dual-path heating device for a vehicle compartment according to claim 1, characterized in that: An oil tank (3) is also provided at the lower part of the frame (1) corresponding to the generator (2).

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