Fire fighting truck tank body with ventilation structure and fire fighting truck

Abstract

The invention discloses a fire fighting truck tank body with a ventilation structure and a fire fighting truck. The fire fighting truck tank body comprises a tank body and a ventilation structure mounted on the tank body; the ventilation structure penetrates through the inner space and the outer space of the tank body and comprises a conveying pipeline, and the conveying pipeline penetrates through the tank body; a connector I communicated with the interior of the tank body is formed in the top of the conveying pipeline; a connector II positioned outside the tank body is formed in the bottom of the conveying pipeline; the first connector is a straight pipe type connector or a bent pipe type connector, and the second connector is a straight pipe type connector. An injection pipe is arranged on the upper portion of the inner side of the conveying pipeline, and the top of the injection pipe penetrates through the conveying pipeline and extends outwards; the axis of the conveying pipeline is parallel to that of the injection pipe. The fire fighting truck comprises the fire fighting truck tank body, and the fire fighting truck tank body is arranged on the rear portion of a truck body chassis. According to the fire fighting truck tank body with the ventilation structure and the fire fighting truck, the safety and convenience of production, use and maintenance of the fire fighting truck are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire fighting vehicle equipment, in particular to a fire fighting vehicle tank body with ventilation structure and a fire fighting vehicle. BACKGROUND

[0002] As a key component of the fire fighting system, the fire fighting vehicle plays an important role in fire fighting operation. However, during the standby period after fire fighting, when personnel enter the tank for cleaning, maintenance, and even welding, corrosion prevention and other operations, if the ventilation is poor and the operation is careless, harmful gas accumulation will easily occur, exposing the operating personnel to dangerous working conditions, and seriously threatening their health and even life safety. Even in the production link, insufficient ventilation also constitutes a safety hazard, forming a safety blind spot that endangers personnel.

[0003] In the prior art, the tank body is severely closed, and personnel in any compartment operation cannot avoid harmful gas; or the tank body only adds process hole covers, so that a ventilation channel can be formed through the manhole and the process hole during the production stage, to improve the ventilation condition to a certain extent. However, the process hole covers are often permanently sealed during maintenance of the finished tank body, and the internal compartment passage is tortuous and has many dead angles, so the actual ventilation effect is limited. In addition, the process hole covers are usually fixed by dozens of bolts, which are cumbersome to disassemble and assemble, and the number of internal compartments is much larger than that of the process holes, so that most personnel often ignore the use of the process hole covers during daily maintenance, resulting in that the ventilation safety cannot be effectively guaranteed. Therefore, it is important to design a fire fighting vehicle tank body with ventilation structure and a fire fighting vehicle to improve the ease of use and safety of the fire fighting vehicle, which is crucial to ensure the long-term operation and sustained combat capability of the equipment. SUMMARY

[0004] The technical problem to be solved by the present application is how to effectively remove the harmful gas accumulation in the fire fighting vehicle tank body and improve the safety of the fire fighting vehicle tank body and the production, use and maintenance of the fire fighting vehicle.

[0005] To solve the above technical problems, the present application provides a fire fighting vehicle tank body with ventilation structure, comprising a tank body and a ventilation structure installed on the tank body. The ventilation structure penetrates the internal and external spaces of the tank body and comprises a conveying pipeline, which is arranged through the tank body. The top of the conveying pipeline is provided with an interface one in communication with the inside of the tank body, and the bottom of the conveying pipeline is provided with an interface two located outside the tank body. The interface one is a straight pipe type interface or an elbow pipe type interface, and the interface two is a straight pipe type interface. A jet pipe is arranged on the inner side of the conveying pipeline, and the top of the jet pipe extends outward through the conveying pipeline. The axis of the conveying pipeline is parallel to the axis of the jet pipe.

[0006] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0007] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0008] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0009] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0010] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0011] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0012] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0013] The fire truck tank body with the ventilation structure has a control valve and a power interface arranged in sequence along the pipeline direction on the injection pipe section outside the conveying pipeline.

[0014] The fire truck tank of the present application has the following beneficial effects: the ventilation structure of the fire truck tank of the present application forms a high-speed jet flow in the delivery pipeline and generates negative pressure, so that a small amount of power fluid can efficiently replace a large amount of harmful gas, rapid ventilation is achieved, and the safety of the environment in the fire truck tank is significantly improved. The ventilation structure of the fire truck tank highly integrates ventilation, liquid injection and overflow functions in a single structure, and can realize various operations by only expanding a power interface and supporting manual or electric control. The modular design has independent and parallel working capabilities, and has excellent efficiency, compactness and adaptability under various working conditions. The ventilation structure does not change the original tank structure and fire fighting function, and is flexibly arranged in a compartment with different sealing degrees and risk levels, and can be integrated in an existing liquid injection port or overflow port, or independently installed in a high-risk area. The fire truck of the present application can rapidly and efficiently ventilate the tank, actively discharge harmful gas and introduce fresh air, thereby providing safety protection for personnel cabin operation, and has good combination, adaptability and operation convenience. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic diagram of the ventilation structure of Example 1; Figure 2 FIG. 2 is a perspective view of the ventilation structure of Example 1; Figure 3 FIG. 3 is a schematic diagram of the present application of Example 1; Figure 4 FIG. 4 is an axial side view of the tank of Example 1; Figure 5 FIG. 5 is a schematic diagram of the delivery pipeline of Example 1; Figure 6 FIG. 6 is a schematic diagram of the injection pipe of Example 1; Figure 7 FIG. 7 is a schematic diagram of the delivery pipeline of Example 1.

[0016] Markings in the figure: 1, interface one; 2, delivery pipeline; 3, interface two; 4, injection port; 5, injection pipe; 6, power interface; 7, control valve; 8, manhole cover; 9, compartment; 10, maintenance hole. DETAILED DESCRIPTION

[0017] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0018] Example 1

[0019] A fire truck tank body with ventilation structure, comprising a tank body and a ventilation structure installed on the tank body; The tank body comprises a manhole cover 8, a compartment 9 and a maintenance hole 10. The tank body is a sealed cavity, the top of the tank body is provided with a manhole cover 8 as a maintenance passage; the inside of the tank body is divided into multiple independent compartments 9 by vertical partitions welded to the tank wall and the bottom; each vertical partition corresponding to each compartment 9 is provided with a maintenance hole 10.

[0020] The ventilation structure penetrates the inside and outside of the tank body, and is independently installed in any designated compartment 9 for ventilation of the compartment 9 and the outside.

[0021] The ventilation structure comprises a conveying pipeline 2, which is arranged through the tank body; the top of the conveying pipeline 2 is provided with an interface one 1 communicating with the inside of the tank body, and the bottom of the conveying pipeline 2 is provided with an interface two 3 located outside the tank body; the inside of the conveying pipeline 2 is provided with a jet pipe 5 at the upper part, and the top of the jet pipe 5 extends outward through the conveying pipeline 2.

[0022] The bottom of the jet pipe 5 is provided with a jet port 4; the jet pipe 5 segment outside the conveying pipeline 2 is sequentially provided with a control valve 7 and a power interface 6 along the pipeline direction; the control valve 7 is used to control the airflow through the power interface 6.

[0023] The axis of the jet pipe 5 is parallel to the axis of the conveying pipeline 2, and the diameter of the jet pipe 5 is smaller than the diameter of the conveying pipeline 2.

[0024] The interface one 1 is a straight pipe type interface or an elbow pipe type interface, and the flow-through axis of the interface one 1 is parallel to the axis of the jet pipe 5; the interface two 3 is a straight pipe type interface, and the axis is coaxial with the axis of the jet pipe 5.

[0025] When the ventilation of the fire truck tank body is needed, the control valve 7 is opened, the external gas enters the jet pipe 5 through the power interface 6 and is sprayed out from the jet port 4 to form a high-speed jet; the high-speed jet forms a local low pressure in the conveying pipeline 2 around the jet port 4. Under the action of low pressure, the harmful gas in the tank body is sucked into the inside of the conveying pipeline 2 from the interface one 1, and is discharged from the interface two 3. The fresh air outside is automatically and continuously flowed into the tank body through the manhole cover 8; a small amount of power gas can be used to exchange a large amount of gas flowing out of the tank body actively, which forms a directional and orderly airflow organization, avoids the airflow short circuit caused by the traditional blowing method, realizes a more thorough and efficient ventilation effect, and improves the safety of personnel entering the tank body for maintenance.

[0026] The control valve 7 adopts manual and electric driving modes. The power interface 6 adopts a modular design, and can be connected to an external industrial gas source, a self-contained air compressor unit, a main machine integrated pneumatic system or a portable auxiliary gas source, and has strong applicability.

[0027] Further, the ventilation and air exchange structure can be integrated with the existing functional port of the fire truck tank body to realize multifunctional integration. As an air exchange port, the control valve 7 is opened, and the ventilation and air exchange structure performs the ventilation and air exchange function.

[0028] The ventilation and air exchange structure can also serve as a liquid injection port or an overflow port of the tank body. As a liquid injection port, the ventilation and air exchange structure is installed at the liquid injection port at the bottom of the tank body. The interface two 3 located outside the tank body serves as a liquid injection port, and the conveying pipeline 2 penetrates the tank body, and the interface one 1 located at the upper part of the tank body is in communication with the space in the tank. The control valve 7 is closed, and the fire-fighting water flows from the interface two 3, enters the tank body of the fire truck from the bottom to the top through the interface one 1. As an overflow port, the ventilation and air exchange structure is installed at the overflow port at the bottom of the tank body. The interface two 3 located outside the tank body serves as an overflow port, and the conveying pipeline 2 penetrates the tank body, and the interface one 1 located at the upper part of the tank body is in communication with the space in the tank. The control valve 7 is closed, and the excess liquid in the tank body of the fire truck flows back from the interface one 1 and is discharged from the top to the bottom through the interface two 3.

[0029] The ventilation and air exchange structure has flexibility in the layout of the fire truck tank body. In a centralized layout, the ventilation and air exchange structure can be installed at the liquid injection port or the overflow port position with limited number of tank bodies, and is used to execute at least one of the following functions of the fire truck tank body: air exchange, liquid injection, and liquid overflow, to realize layout optimization and reduce complexity. In a decentralized layout, the ventilation and air exchange structure of the fire truck can be independently installed at the top of any specified compartment 9, and is used for air exchange between the compartment 9 and the outside, to realize independent and targeted ventilation of the specific compartment 9.

[0030] To further improve the adaptability of the present application, the conveying pipeline 2 can adopt various structural forms such as straight pipes, elbow pipes or reducing pipes according to the installation space requirements. As an inlet for supplying fresh air to the fire truck tank body, the manhole cover 8 can also be other functional covers, such as a pouring port cover, a cleaning port cover and a sewage discharge port cover.

[0031] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0032] Example 2

[0033] The embodiment provides a fire truck, which comprises the fire truck tank body as described above, and the fire truck tank body is installed at the rear part of a truck body chassis. By the integrated design of the fire truck tank body and the fire truck, the ventilation and air exchange structure can be driven by the air source of the fire truck itself or an external air source.

[0034] The fire truck can quickly and efficiently ventilate and air exchange the tank body after the fire extinguishing and rescue, and remove the residual toxic, corrosive or flammable and explosive gas, greatly improves the safety and service life of the equipment, and guarantees the personal safety of the firefighters.

[0035] It should be understood that the above description is merely specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by those skilled in the art, and should be covered within the protection scope of the present application.

Claims

1. A fire truck tank with a ventilation and air exchange structure, characterized in that, Includes a tank body and a ventilation structure installed on the tank body; The ventilation structure penetrates the inner and outer spaces of the tank and includes a conveying pipe (2), which is installed through the tank. The top of the conveying pipe (2) is provided with an interface 1 (1) that communicates with the inside of the tank, and the bottom of the conveying pipe (2) is provided with an interface 2 (3) located outside the tank. The interface 1 (1) is a straight pipe interface or a bent pipe interface, and the interface 2 (3) is a straight pipe interface. A spray pipe (5) is provided on the upper inner side of the conveying pipe (2), and the top of the spray pipe (5) extends outward through the conveying pipe (2). The axis of the conveying pipe (2) is parallel to the axis of the spray pipe (5).

2. The fire truck tank body with a ventilation structure as described in claim 1, characterized in that, On the jet pipe (5) section outside the conveying pipeline (2), a control valve (7) and a power interface (6) are sequentially provided along the pipeline direction; the control valve (7) is used to control the airflow flowing through the power interface (6).

3. The fire truck tank body with a ventilation structure as described in claim 2, characterized in that, The tank is a sealed cavity, and the interior of the tank is divided into multiple independent compartments (9) by vertical partitions welded to the tank wall and bottom; the ventilation structure is independently installed in any designated compartment (9) for ventilation between the compartment (9) and the outside; the control valve (7) is opened, the power interface (6) is connected to the external air source, and the gas inside the tank is exchanged.

4. The fire truck tank body with a ventilation structure as described in claim 2, characterized in that, The ventilation structure is installed at the liquid injection port at the bottom of the tank. Interface 2 (3) located outside the tank serves as the liquid injection port. The delivery pipe (2) runs through the tank. Interface 1 (1) is located at the top of the tank and connects with the space inside the tank. When injecting liquid, the control valve (7) is closed. Fire water flows in from Interface 2 (3) and enters the fire truck tank through Interface 1 (1).

5. The fire truck tank body with a ventilation structure as described in claim 2, characterized in that, The ventilation structure is installed at the overflow port at the bottom of the tank; the second interface (3) located outside the tank serves as the overflow port, the conveying pipe (2) runs through the tank, and the first interface (1) is located at the top of the tank and communicates with the space inside the tank; when overflowing, the control valve (7) is closed, and the excess liquid in the tank flows back from the first interface (1) and is discharged through the second interface (3).

6. The fire truck tank body with a ventilation structure as described in claim 2, characterized in that, When ventilation is performed, the power interface (6) is connected to an external air source, including: an industrial air source, a self-contained air compressor, a main unit integrated pneumatic system, or a portable auxiliary air source.

7. The fire truck tank body with a ventilation structure as described in claim 1, characterized in that, The diameter of the injection pipe (5) is smaller than the diameter of the delivery pipe (2).

8. The fire truck tank body with a ventilation structure as described in claim 1, characterized in that, The conveying pipeline (2) uses straight pipes and bends.

9. A fire truck, characterized in that, The fire truck tanker includes any one of claims 1 to 8 and has a ventilation structure.

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