Low-temperature heating system of fire fighting truck

Abstract

The utility model discloses a low-temperature heating system of a fire fighting truck, which belongs to the technical field of fire fighting machinery and comprises a controller, a first heating mechanism, a second heating mechanism, a power generation mechanism, a third heating mechanism, a fourth heating mechanism and a power supply. The first heating mechanism and the second heating mechanism are electrically connected with the power generation mechanism; the power generation mechanism is electrically connected with the controller; and a heating paste is arranged on the valve body. The hydraulic oil tank of the fire fighting truck and the valve body connected with the hydraulic oil tank are heated at low temperature through the first heating mechanism and the heating paste, and the situation that the viscosity of hydraulic oil is increased in the low-temperature environment and the valve body is stuck is avoided; a second heating mechanism, a third heating mechanism and a fourth heating mechanism are adopted to heat a fire-fighting pipeline, a fire-fighting tank body and an operation box of the fire-fighting truck at low temperature, and the problem of poor conveying working conditions of electrical elements and fire-fighting liquid is solved.

Description

Technical Field

[0001] This utility model relates to a low-temperature heating system for fire trucks, belonging to the field of fire-fighting machinery technology. Background Technology

[0002] When the ambient temperature is too low, the electrical components of conventional fire trucks may not function properly or may even be damaged. Hydraulic oil will increase in viscosity at low temperatures, and moisture will solidify and adhere to the parts of hydraulic valves and the surface of oil filters, causing hydraulic valves to jam, oil filters to become clogged, and fire-fighting fluid to freeze. As a result, fire trucks may experience low efficiency or even be unable to work when carrying out rescue operations in low-temperature environments. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a low-temperature heating system for fire trucks. This system can prevent the fire truck's fire pipelines, fire tanks, control boxes, hydraulic oil tanks, and valve bodies from freezing at low temperatures, thus maintaining the equipment in good working condition. It also solves the problem that conventional fire trucks suffer from poor working conditions of electrical components, fire fluid, and hydraulic oil delivery mechanisms when the external ambient temperature is too low.

[0004] To achieve the above objectives / to solve the above technical problems, this utility model adopts the following technical solution:

[0005] A fire truck low-temperature heating system is provided. The fire truck is equipped with fire pipelines, fire tank, control box, seat, hydraulic oil tank and valve body connected to the hydraulic oil tank. The system includes a controller, a first heating mechanism located in the hydraulic oil tank, a second heating mechanism located in the fire pipeline, a power generation mechanism, a third heating mechanism located in the fire tank, a fourth heating mechanism located in the control box and a power supply.

[0006] The hydraulic oil tank, fire-fighting pipeline, fire-fighting tank body, and control box are all equipped with temperature sensors, which are electrically connected to the controller;

[0007] The power generation mechanism is used to supply power to the first heating mechanism and the second heating mechanism, and the power generation mechanism is electrically connected to the controller;

[0008] Heating pads are provided on the valve body;

[0009] The power supply is electrically connected to the controller, the heating pad, the third heating mechanism, and the fourth heating mechanism, respectively; the heating pad, the third heating mechanism, and the fourth heating mechanism are all electrically connected to the controller.

[0010] Optionally, the first heating mechanism includes a hydraulic oil heater; the hydraulic oil heater is immersed in hydraulic oil in the hydraulic oil tank.

[0011] Optionally, the second heating mechanism includes a first heating section disposed on the fire-fighting pipeline and a first heat-insulating protective layer covering the outside of the first heating section; the first heating section is electrically connected to the power generation mechanism.

[0012] Optionally, the first heating part includes an electric heating wire, which is uniformly wound around the fire-fighting pipeline.

[0013] Optionally, the third heating mechanism includes a second heating section located on the outside of the fire tank, a tank heater for heating the second heating section, and a liquid level sensor located inside the tank. The tank heater and the liquid level sensor are both electrically connected to the controller, and the tank heater is electrically connected to the power supply.

[0014] Optionally, the second heating element includes a heat-conducting sheet attached to the outside of the fire tank and a second heat-insulating protective layer covering the outside of the heat-conducting sheet; the heat-conducting sheet is connected to the heating end of the tank heater.

[0015] Optionally, the fourth heating mechanism includes a semiconductor ceramic heating element; the semiconductor ceramic heating element is fixed to the inner wall of the operating box and electrically connected to the controller.

[0016] Optionally, the controller is further provided with a plurality of first operation switches corresponding to the first heating mechanism, the second heating mechanism, the third heating mechanism, the fourth heating mechanism and the heating pad respectively.

[0017] Optionally, it also includes a fifth heating mechanism disposed on the operating seat; the fifth heating mechanism includes a temperature control unit and a seat heater;

[0018] The seat heater is electrically connected to the power supply and the temperature control unit respectively; the temperature control unit is electrically connected to the controller.

[0019] Optionally, the controller is further provided with a second operating switch corresponding to the fifth heating mechanism.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0021] 1. This utility model achieves heating of the hydraulic oil tank and valve body connected to the hydraulic oil tank of the fire truck at low temperatures through the first heating mechanism and heating sticker, avoiding the situation where the viscosity of the hydraulic oil increases and the valve body gets stuck in the low temperature environment; the second heating mechanism, the third heating mechanism and the fourth heating mechanism achieve heating of the fire pipeline, fire tank and control box of the fire truck at low temperatures, avoiding the problem of poor working conditions of electrical components and fire fluid delivery.

[0022] 2. This utility model uses a fifth heating mechanism to heat the operating seat and uses a temperature control unit to limit the heating temperature. Under the premise of ensuring safety, it protects the working environment of firefighters in low temperatures and improves work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a fire truck low-temperature heating system provided in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the second heating mechanism in a fire truck low-temperature heating system provided in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the third heating mechanism in a fire truck low-temperature heating system provided in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the installation position of the heating pad in a low-temperature heating system for a fire truck, provided by an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the fourth heating mechanism in a fire truck low-temperature heating system provided in an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the first heating mechanism in a fire truck low-temperature heating system provided in an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the fifth heating mechanism in a fire truck low-temperature heating system provided in this embodiment of the utility model.

[0030] In the diagram: 1. Fire-fighting pipeline; 2. Fire-fighting tank; 3. Control box; 4. Hydraulic oil tank; 5. Valve body; 6. Seat; 7. Temperature sensor; 8. Hydraulic oil heater; 901. First thermal insulation layer; 902. Electric heating wire; 1001. Heat-conducting sheet; 1002. Second thermal insulation layer; 1003. Tank heater; 1004. Liquid level sensor; 11. Heating pad; 12. Semiconductor ceramic heating element; 13. First operating switch; 14. Temperature control unit; 15. Seat heater; 16. Second operating switch. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0034] like Figure 1 As shown, a low-temperature heating system for a fire truck includes equipment such as a fire pipeline 1, a fire tank 2, an control box 3, a hydraulic oil tank 4, a valve body 5 connected to the hydraulic oil tank 4, and a seat 6.

[0035] The fire truck's low-temperature heating system includes a controller, a first heating mechanism, a second heating mechanism, a power generation mechanism, a third heating mechanism, a fourth heating mechanism, and a power supply. Specifically:

[0036] The hydraulic oil tank 4, fire pipeline 1, fire tank 2 and control box 3 are all equipped with temperature sensors 7. Each temperature sensor 7 is electrically connected to the controller. It should be noted that the temperature sensors 7 on the hydraulic oil tank 4, fire pipeline 1, fire tank 2 are all installed on the surface, while the temperature sensor 7 on the control box 3 is installed inside.

[0037] The power generation mechanism is electrically connected to the controller. In this embodiment, the power generation mechanism is a generator and the controller is a PLC controller.

[0038] like Figure 6 As shown, the first heating mechanism includes a hydraulic oil heater 8; the heating end of the hydraulic oil heater 8 is immersed in the hydraulic oil in the hydraulic oil tank 4, and the hydraulic oil heater 8 is electrically connected to the generator mechanism.

[0039] like Figure 2 As shown, the second heating mechanism includes a first heating part disposed on the fire pipeline 1 and a first heat insulation protective layer 901 covering the outside of the first heating part; wherein, the first heating part includes an electric heating wire 902, the electric heating wire 902 is evenly wound on the fire pipeline 1, and the electric heating wire 902 is electrically connected to the power generation mechanism.

[0040] Since the heating power of the hydraulic oil heater 8 and the electric heating wire 902 in this example can reach several kilowatts, if the vehicle battery is used for power supply, the output power will be insufficient and the number of batteries will need to be increased. Therefore, a generator is used to power the hydraulic oil heater 8 and the electric heating wire 902.

[0041] like Figure 3 As shown, the third heating mechanism includes a second heating section located on the outside of the fire tank 2, a tank heater 1003 for heating the second heating section, and a liquid level sensor 1004 located inside the tank. The second heating section includes a heat-conducting sheet 1001 attached to the outside of the fire tank 2 and a second heat-insulating protective layer 1002 covering the outside of the heat-conducting sheet 1001. The heat-conducting sheet 1001 is fixedly connected to the heating end of the tank heater 1003. Both the tank heater 1003 and the liquid level sensor 1004 are electrically connected to the controller.

[0042] like Figure 4 As shown, a heating pad 11 is also attached to the outside of the valve body 5, and the heating pad 11 is electrically connected to the controller.

[0043] like Figure 5 As shown, the fourth heating mechanism includes a semiconductor ceramic heating element 12; the semiconductor ceramic heating element 12 is fixed to the inner wall of the operation box 3 and electrically connected to the controller;

[0044] The controller, tank heater 1003, heating pad 11 and semiconductor ceramic heating element 12 are all electrically connected to the power supply. In this embodiment, the power supply is the vehicle chassis battery.

[0045] Temperature sensor 7 can monitor the temperature of hydraulic oil tank 4, fire pipeline 1, fire tank 2 and control box 3. The controller has a preset program. Taking fire tank 2 as an example, based on the preset temperature threshold and the liquid level height monitored by liquid level sensor 1004 inside fire tank 2, when the temperature is lower than the set threshold, the controller controls the tank heater 1003 to start working. When the temperature is higher than the set threshold or the liquid level is lower than the preset safe liquid level, the controller controls the fuel heater to stop working.

[0046] The controller is also equipped with multiple first operating switches 13 corresponding to the first heating mechanism, the second heating mechanism, the third heating mechanism, the fourth heating mechanism, and the heating pad 11; specifically:

[0047] The first operating switch 13 enables direct manual control of the tank heater 1003, the semiconductor ceramic heating element 12, and the heating pad 11. The first operating switch 13 can also be used to control the generator, thereby enabling indirect manual control of the hydraulic oil heater 8 and the electric heating wire 902. The highest priority of manual control can be achieved at the software level. In the event of failure of the automatic control program based on the temperature sensor 7, firefighters can manually shut down each heating mechanism through the first operating switch 13 without shutting down the power supply of the entire vehicle, thus improving safety without affecting the rescue operation. Example 2

[0048] like Figure 1 As shown, a fire truck low-temperature heating system includes fire pipes 1, fire tank 2, control box 3, seat 6, hydraulic oil tank 4, and valve body 5 connected to the hydraulic oil tank 4.

[0049] The fire truck's low-temperature heating system includes a controller, a first heating mechanism, a second heating mechanism, a power generation mechanism, a third heating mechanism, a fourth heating mechanism, and a power supply. Specifically:

[0050] The hydraulic oil tank 4, fire pipeline 1, fire tank 2 and control box 3 are all equipped with temperature sensors 7. Each temperature sensor 7 is electrically connected to the controller. It should be noted that the temperature sensors 7 on the hydraulic oil tank 4, fire pipeline 1, fire tank 2 are all installed on the surface, while the temperature sensor 7 on the control box 3 is installed inside.

[0051] The power generation mechanism is electrically connected to the controller. In this embodiment, the power generation mechanism is a generator and the controller is a PLC controller.

[0052] like Figure 6 As shown, the first heating mechanism includes a hydraulic oil heater 8; the heating end of the hydraulic oil heater 8 is immersed in the hydraulic oil in the hydraulic oil tank 4, and the hydraulic oil heater 8 is electrically connected to the generator mechanism.

[0053] like Figure 2 As shown, the second heating mechanism includes a first heating part disposed on the fire pipeline 1 and a first heat insulation protective layer 901 covering the outside of the first heating part; wherein, the first heating part includes an electric heating wire 902, the electric heating wire 902 is evenly wound on the fire pipeline 1, and the electric heating wire 902 is electrically connected to the power generation mechanism.

[0054] Since the heating power of the hydraulic oil heater 8 and the electric heating wire 902 in this example can reach several kilowatts, if the vehicle battery is used for power supply, the output power will be insufficient and the number of batteries will need to be increased. Therefore, a generator is used to power the hydraulic oil heater 8 and the electric heating wire 902.

[0055] like Figure 3 As shown, the third heating mechanism includes a second heating section located on the outside of the fire tank 2, a tank heater 1003 for heating the second heating section, and a liquid level sensor 1004 located inside the tank. The second heating section includes a heat-conducting sheet 1001 attached to the outside of the fire tank 2 and a second heat-insulating protective layer 1002 covering the outside of the heat-conducting sheet 1001. The heat-conducting sheet 1001 is fixedly connected to the heating end of the tank heater 1003. Both the tank heater 1003 and the liquid level sensor 1004 are electrically connected to the controller.

[0056] like Figure 4 As shown, a heating pad 11 is also attached to the outside of the valve body 5, and the heating pad 11 is electrically connected to the controller.

[0057] like Figure 5 As shown, the fourth heating mechanism includes a semiconductor ceramic heating element 12; the semiconductor ceramic heating element 12 is fixed to the inner wall of the operation box 3 and electrically connected to the controller;

[0058] The controller, tank heater 1003, heating pad 11 and semiconductor ceramic heating element 12 are all electrically connected to the power supply. In this embodiment, the power supply is the vehicle chassis battery.

[0059] Temperature sensor 7 can monitor the temperature of hydraulic oil tank 4, fire pipeline 1, fire tank 2 and control box 3. Based on the preset program in the controller, taking fire tank 2 as an example, based on the preset temperature threshold and the liquid level height monitored by the liquid level sensor 1004 inside fire tank 2, when the temperature is lower than the set threshold, the controller controls the tank heater 1003 to start working. When the temperature is higher than the set threshold or the liquid level is lower than the preset safe liquid level, the controller controls the fuel heater to stop working.

[0060] The controller is also equipped with multiple first operating switches 13 corresponding to the first heating mechanism, the second heating mechanism, the third heating mechanism, the fourth heating mechanism, and the heating pad 11; specifically:

[0061] The first operating switch 13 enables direct manual control of the tank heater 1003, the semiconductor ceramic heating element 12, and the heating pad 11. The first operating switch 13 can also be used to control the generator, thereby enabling indirect manual control of the hydraulic oil heater 8 and the electric heating wire 902. The highest priority of manual control can be achieved at the software level. In the event of failure of the automatic control program based on the temperature sensor 7, firefighters can manually shut down each heating mechanism through the first operating switch 13 without shutting down the power supply of the entire vehicle, thus improving safety without affecting the rescue operation.

[0062] To improve the comfort of firefighters during their work, a fifth heating mechanism is also included;

[0063] like Figure 7 As shown, the fifth heating mechanism includes a temperature control unit 14 and a seat heater 15 installed on the driver's seat 6. The temperature control unit 14 is electrically connected to the controller, and the seat heater 15 is electrically connected to the power supply and the temperature control unit 14 respectively. In addition to keeping the temperature of the seat 6 constant, the temperature control unit 14 can also adjust the gear according to actual needs to improve the comfort of the seat 6.

[0064] The controller is also equipped with a second operating switch 16 corresponding to the fifth heating mechanism, which can be used to manually control the seat heater 15.

[0065] Working principle

[0066] Taking fire tank 2 as an example, based on the preset temperature threshold and the liquid level height monitored by the liquid level sensor 1004 inside the fire tank 2, when the temperature is lower than the set threshold, the controller controls the tank heater 1003 to start working. When the temperature is higher than the set threshold or the liquid level is lower than the preset safe liquid level, the controller controls the fuel heater to stop working. When the automatic control based on the temperature sensor 7 fails, the firefighter can manually shut down each heating mechanism through the first operating switch 13.

[0067] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A low-temperature heating system for a fire truck, wherein the fire truck is equipped with a fire pipeline (1), a fire tank (2), an operation box (3), a seat (6), a hydraulic oil tank (4), and a valve body (5) connected to the hydraulic oil tank (4), characterized in that, The fire truck low-temperature heating system includes a controller, a first heating mechanism located in the hydraulic oil tank (4), a second heating mechanism located in the fire pipeline (1), a power generation mechanism, a third heating mechanism located in the fire tank (2), a fourth heating mechanism located in the control box (3), and a power supply. The hydraulic oil tank (4), fire pipeline (1), fire tank body (2) and control box (3) are all equipped with temperature sensors (7), and the temperature sensors (7) are electrically connected to the controller; The power generation mechanism is used to supply power to the first heating mechanism and the second heating mechanism, and the power generation mechanism is electrically connected to the controller; The valve body (5) is also provided with a heating pad (11); The power supply is electrically connected to the controller, the heating pad (11), the third heating mechanism, and the fourth heating mechanism, respectively; the heating pad (11), the third heating mechanism, and the fourth heating mechanism are all electrically connected to the controller.

2. The fire truck low-temperature heating system according to claim 1, characterized in that, The first heating mechanism includes a hydraulic oil heater (8); the hydraulic oil heater (8) is immersed in hydraulic oil in the hydraulic oil tank (4).

3. The fire truck low-temperature heating system according to claim 1, characterized in that, The second heating mechanism includes a first heating part disposed on the fire-fighting pipeline (1) and a first heat-insulating protective layer (901) covering the outside of the first heating part; the first heating part is electrically connected to the power generation mechanism.

4. The fire truck low-temperature heating system according to claim 3, characterized in that, The first heating part includes an electric heating wire (902), which is uniformly wound around the fire-fighting pipeline (1).

5. The fire truck low-temperature heating system according to claim 1, characterized in that, The third heating mechanism includes a second heating section located outside the fire tank (2), a tank heater (1003) for heating the second heating section, and a liquid level sensor (1004) located inside the tank. The tank heater (1003) and the liquid level sensor (1004) are both electrically connected to the controller, and the tank heater (1003) is electrically connected to the power supply.

6. The fire truck low-temperature heating system according to claim 5, characterized in that, The second heating part includes a heat-conducting sheet (1001) attached to the outside of the fire tank (2) and a second heat-insulating protective layer (1002) covering the outside of the heat-conducting sheet (1001); the heat-conducting sheet (1001) is connected to the heating end of the tank heater (1003).

7. The fire truck low-temperature heating system according to claim 1, characterized in that, The fourth heating mechanism includes a semiconductor ceramic heating element (12); the semiconductor ceramic heating element (12) is fixed to the inner wall of the operating box (3) and electrically connected to the controller.

8. The fire truck low-temperature heating system according to claim 1, characterized in that, The controller is also provided with a number of first operation switches (13) corresponding to the first heating mechanism, the second heating mechanism, the third heating mechanism, the fourth heating mechanism and the heating pad (11).

9. The fire truck low-temperature heating system according to claim 1, characterized in that, It also includes a fifth heating mechanism located on the operating seat (6); the fifth heating mechanism includes a temperature control unit (14) and a seat heater (15). The seat heater (15) is electrically connected to the power supply and the temperature control unit (14); the temperature control unit (14) is electrically connected to the controller.

10. The fire truck low-temperature heating system according to claim 9, characterized in that, The controller is also equipped with a second operating switch (16) corresponding to the fifth heating mechanism.

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