Generator set

Abstract

The generator set comprises a power generator, an engine for driving the power generator to generate power and a fuel supply part for supplying fuel to the engine, the generator set further comprises a fire extinguishing device, the fire extinguishing device comprises a fire extinguisher body and a thermal induction part for activating the fire extinguisher body, and the fire extinguisher body consumes oxygen and sprays out fire extinguishing gas after being activated. According to the generator set, by means of the arrangement of the thermal induction part and the fire extinguisher body, when the interior of the generator set is on fire, the thermal induction part activates the fire extinguisher body according to the temperature change, so that the fire extinguishing device is triggered to work, oxygen in the space near the ignition point in the generator set is rapidly consumed, and oxygen-free fire extinguishing gas is sprayed out; and external power supply is not needed, and the structure is simple.

Description

Technical Field

[0001] The invention relates to a generator set, in particular to a generator set with an automatic fire extinguishing function. Background Art

[0002] As the use of generators becomes more popular, people have gradually exposed some problems with existing generators during actual use. Among them, the impact of spontaneous combustion of vehicle-mounted generators is the most serious.

[0003] As we all know, the start-up process of a fuel generator is actually a process in which the kinetic energy generated by the combustion of fuel is converted into electrical energy for output. During the operation of the generator, the fuel is ignited by the high-voltage spark of the igniter, and the generator outputs electrical energy after operation. Sparks will also be generated by electrical short circuit or poor contact; therefore, when the fuel leaks, there is a risk of fire. Especially for vehicle-mounted generators, due to the influence of transportation vibration, the oil line is more likely to be worn, damaged and short-circuited, and the risk of fire is greater.

[0004] Chinese patent document CN202682614U discloses a dual-start engine fire extinguisher, which includes a shell, a top cover, a heat insulation layer, a fire extinguishing agent, a coolant, an electric start lead and a thermistor wire; a top cover is fixedly and sealedly installed at the upper end of the shell, and discharge ports are distributed on the top cover, and fire extinguishing agent and coolant are arranged from bottom to top in the shell, and a heat insulation layer is fixedly installed between the fire extinguishing agent and coolant and the shell, and a sleeve is fixedly installed on the top cover. The present invention has a reasonable structure and is easy to use. However, in the prior art, the ejection of the fire extinguishing gas needs to be stimulated by an electric starting device, so an additional power supply device is required to power the electric starting device, thereby increasing the cost of fire extinguishing; moreover, when a short circuit occurs in the circuit, it is also easy to cause a fire, posing a safety hazard. Summary of the invention

[0005] In order to solve the technical problem in the prior art that the fire extinguishing device requires an additional power supply device to supply power, thereby increasing the cost of fire extinguishing, the present invention provides a generator set, including a generator, an engine that drives the generator to generate electricity, and a fuel supply unit that supplies fuel to the engine, and also includes a fire extinguishing device, wherein: the fire extinguishing device includes a fire extinguisher body and a heat-sensing component that activates the fire extinguisher body, and the fire extinguisher body consumes oxygen and sprays fire extinguishing gas after being activated.

[0006] After analyzing the spontaneous combustion phenomenon of the generator set, it was found that the conditions that lead to spontaneous combustion of the generator set require the presence of combustible materials and ignition / ignition points. In the generator set, the combustible materials are fuel and flammable materials, and the ignition / ignition points are exhaust ports and circuit short-circuit parts. When the ignition / ignition point comes into contact with the combustible materials, spontaneous combustion will occur. Therefore, in order to eliminate spontaneous combustion, we can start from blocking the contact between the fire source and the flammable materials and isolating the air.

[0007] In this solution, the fire is extinguished by blocking the air. When a fire occurs, the heat sensing component can activate the fire extinguisher body according to the temperature change. After the fire extinguisher body is activated, it will consume the oxygen cylinder to spray fire extinguishing gas. On the one hand, the oxygen consumption can prevent the existing fire from continuing to expand. On the other hand, the fire extinguishing gas can extinguish the existing fire, thereby achieving the purpose of rapid fire extinguishing. No external power supply is required, and the structure is simple.

[0008] Preferably, the fire extinguisher body includes a shell and a fire extinguishing agent, the shell is provided with a fire extinguishing nozzle, the fire extinguishing agent is placed in the shell, and the heat sensing component is connected to the fire extinguisher body and passes through the shell from the side of the shell where the fire extinguishing nozzle is provided. In this solution, the shell is used to protect the fire extinguishing agent to prevent the fire extinguishing agent from being misused, and the heat sensing component passes through the shell again after the fire extinguishing agent is connected, and the side passing through the shell can sense the temperature change in time and activate the fire extinguishing agent, and the structure is simple.

[0009] Preferably, the heat-sensing component is a heat-sensitive material component. Since fire will cause temperature changes, the present solution uses a heat-sensitive material component that can sense temperature changes as the heat-sensing component, so that the operation of activating the fire extinguishing body can be realized without external power supply, which can reduce the energy consumption of the fire extinguishing device and thus save the fire extinguishing cost.

[0010] Preferably, the heat sensing component activates the fire extinguisher body when the temperature exceeds 100°C. Since the ambient temperature of the internal space of the fuel generator set is generally within 80°C when it is operating normally, and the temperature resistance of the wiring harness of the circuit line is generally within 105°C, in this solution, the heat sensing component is set to activate the fire extinguisher body to extinguish the fire when the temperature exceeds 100°C. This will neither cause the fire extinguisher body to be mistakenly activated due to the induction temperature being too low, nor can it be activated in time due to the induction temperature being too high, so as to ensure that the fire extinguishing operation can be carried out in time when the generator set catches fire, thereby reducing the loss of the generator set.

[0011] Preferably, the shell includes a mounting portion and a covering portion covering the mounting portion, the fire extinguishing agent is located in a cavity after the mounting portion and the covering portion are covered, one end of the heat sensing component is located in the cavity, and the other end passes through the shell from the covering portion. Since the fire extinguishing agent is a consumable, it needs to be replaced with a new fire extinguishing agent after use. Therefore, in this solution, the shell adopts a covering method to facilitate the installation of the fire extinguishing agent, and the structure is simple.

[0012] Preferably, the mounting portion is provided with a mounting position for placing the fire extinguishing agent. In this solution, the setting of the mounting position facilitates the fixation of the fire extinguishing agent in the mounting portion to ensure the normal use of the fire extinguishing agent.

[0013] Preferably, a heat dissipation ball is also provided in the housing. In this solution, the heat dissipation ball can dissipate the high-temperature fire extinguishing gas generated by the fire extinguishing agent and then eject it, so that the temperature can be quickly reduced while extinguishing the fire, and the temperature of the burning object can be reduced to below the ignition point, and the combustion reaction will be stopped, thereby accelerating the fire extinguishing speed.

[0014] Preferably, the heat dissipation ball is located between the mounting position and the inner wall of the mounting portion. In this solution, the heat dissipation ball is arranged between the mounting position and the mounting portion, which can disperse the fire extinguishing gas so that it is sprayed evenly, thereby achieving a better fire extinguishing effect.

[0015] Preferably, a heat insulation layer is provided in the shell, and the heat insulation layer is arranged close to the inside of the shell. In this solution, the provision of the heat insulation layer can prevent the high temperature gas of the fire extinguisher body from being quickly transferred to the shell, which can avoid the damage of high temperature to the shell on the one hand, and also avoid the influence of high temperature on the combustion reaction on the other hand.

[0016] Preferably, the fire extinguishing device is installed at the engine, generator or fuel supply unit and the fire extinguisher body sprays the fire extinguishing gas toward the engine, generator or fuel supply unit. In this solution, the selection of the position and direction of the fire extinguishing device can extinguish the fire point in time, thereby quickly extinguishing the fire and improving the fire extinguishing efficiency.

[0017] Preferably, a connection portion is provided on the outer surface of the housing. In this solution, the provision of the connection portion facilitates the installation of the housing on the generator set.

[0018] Preferably, a flameout device is also included, and when the fire extinguisher body is activated, the flameout device keeps the generator extinguished. In this solution, the flameout device is provided to prevent the fire from spreading due to continued power supply.

[0019] Preferably, an alarm device is also included, and when the fire extinguisher body is activated, the alarm device sounds an alarm. In this solution, the setting of the alarm device can sound an alarm in time to remind the operator to take protective measures in time.

[0020] The present invention has the following beneficial effects: 1. In the present invention, by using the settings of the heat sensing component and the fire extinguisher body, when a fire occurs inside the generator set, the heat sensing component activates the fire extinguisher body according to the temperature change, thereby triggering the fire extinguishing device to work, quickly consuming the oxygen in the space near the fire point inside the generator set, and spraying out oxygen-less fire extinguishing gas, thereby realizing the function of automatic and rapid fire extinguishing, and no external power supply is required, and the structure is simple.

[0021] 2. In the present invention, the structural design of the fire extinguisher body is simple, and can realize the uniform spraying of low-temperature fire extinguishing gas, thereby accelerating the fire extinguishing efficiency and achieving the purpose of rapid fire extinguishing.

[0022] 3. In the present invention, after the flameout device and the alarm device are provided, when the fire extinguisher body is activated, the flameout device keeps the generator extinguished and sounds an alarm, which can prevent the fire from spreading due to continued power supply and remind the operator to take protective measures in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of an embodiment of a generator set of the present invention; Figure 2 for Figure 1 Schematic diagram of the fire extinguishing device; Figure 3 for Figure 2 Exploded diagram of Figure 4 for Figure 2 Sectional view of AA. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods: The reference numerals in the drawings of the specification include: a mounting portion 1 , a fire extinguishing agent 2 , a heat insulating layer 3 , a heat dissipating ball 4 , a covering portion 5 , a connecting portion 51 , and a heat sensing component 6 .

[0025] The embodiment is basically as shown in the attached Figure 1-Figure 4 As shown: the generator set includes a generator, an engine driving the generator to generate electricity, and a fuel supply unit for supplying fuel to the engine, and also includes a fire extinguishing device, a flame-off device, and an alarm device. The fire extinguishing device includes a fire extinguisher body and a heat-sensing component 6 that activates the fire extinguisher body. After the fire extinguisher body is activated, the flame-off device keeps the generator extinguished, and the alarm device sounds an alarm. Specifically, the fire extinguishing device is installed at the engine, generator, or fuel supply unit, and the fire extinguisher body sprays the fire extinguishing gas toward the engine, generator, or fuel supply unit.

[0026] like Figure 2-Figure 4 As shown, the fire extinguisher body includes a shell and a fire extinguishing agent 2, the shell is provided with a fire extinguishing nozzle, the fire extinguishing agent 2 is placed in the shell, the heat sensing component 6 is connected to the fire extinguisher body and passes through the shell from the side of the shell where the fire extinguishing nozzle is provided, and a connecting portion 51 is provided on the outer surface of the shell. In this embodiment, the shell is a cylinder, the shell includes a mounting portion 1 and a covering portion 5 covering the mounting portion 1, the fire extinguishing agent 2 is located in the cavity after the mounting portion 1 and the covering portion 5 are covered, specifically, the mounting portion 1 is provided with a mounting position for placing the fire extinguishing agent 2, and the mounting position is a cylinder arranged at the center of the bottom surface of the mounting portion 1. The fire extinguishing agent 2 can be a halogenated hydrocarbon fire extinguishing agent 2 such as heptafluoropropane fire extinguishing agent 2, and heptafluoropropane fire extinguishing agent 2 is used in this embodiment.

[0027] A heat dissipation ball 4 is provided between the mounting position and the inner wall of the housing, and a heat insulation layer 3 is also provided inside the housing. The heat insulation layer 3 can be a flame retardant such as asbestos material. In this embodiment, the heat insulation layer 3 is made of asbestos material. The heat insulation layer 3 is arranged closely to the inside of the housing. A connecting portion 51 is provided on the outer surface of the housing, and the connecting portion 51 is provided with a connecting hole. In this embodiment, the housing is fixed to the generator set by bolts.

[0028] One end of the heat sensing component 6 is located in the cavity, and the other end passes through the housing from the cover 5. The heat sensing component 6 is a heat sensitive material component, and activates the fire extinguisher body when the temperature exceeds 100° C. In this embodiment, the heat sensing component 6 can be a thermistor sensor.

[0029] The specific implementation process is as follows: the fire extinguishing device is fixed on the generator set through the connecting part 51, and the assembly direction is that the fire extinguishing nozzle faces the fire-prone part of the generator; the heat-sensitive component is also led out from the fire extinguishing nozzle and placed near the fire-prone part; when the generator set is on fire, the heat-sensitive temperature component gives a trigger signal to the fire extinguisher body according to the temperature change, thereby triggering the fire extinguishing agent 2 to consume oxygen and spray out the fire extinguishing gas, thereby realizing the function of automatic fire extinguishing. In this embodiment, the fire extinguishing device does not require external power supply, and after being triggered according to the temperature change, it conducts a rapid chemical combustion reaction, quickly consumes the oxygen in the space near the ignition point inside the generator set, and sprays out the fire extinguishing gas with less oxygen, thereby achieving the purpose of rapid fire extinguishing.

[0030] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A generator set, comprising a generator, an engine driving the generator to generate electricity, and a fuel supply unit for supplying fuel to the engine, and also comprising a fire extinguishing device, characterized in that: The fire extinguishing device includes a fire extinguisher body and a heat sensing component that senses and activates the fire extinguisher body according to temperature changes, and the heat sensing component consumes oxygen and sprays fire extinguishing gas after the fire extinguisher body is activated.

2. The generator set according to claim 1, characterized in that: The fire extinguisher body comprises a shell and a fire extinguishing agent, the shell is provided with a fire extinguishing nozzle, the fire extinguishing agent is placed in the shell, and the heat sensing component is connected to the fire extinguisher body and passes through the shell from a side of the shell where the fire extinguishing nozzle is provided.

3. The generator set according to claim 2, characterized in that: The heat-sensing component is a heat-sensitive material component.

4. The generator set according to claim 3, characterized in that: The heat sensing component activates the fire extinguisher body when the temperature exceeds 100°C.

5. The generator set according to claim 4, characterized in that: The shell comprises a mounting portion and a covering portion covering the mounting portion, the fire extinguishing agent is located in a cavity after the mounting portion and the covering portion are covered, one end of the heat-sensing component is located in the cavity, and the other end passes through the covering portion to exit the shell.

6. The generator set according to claim 5, characterized in that: The installation portion is provided with an installation position for placing the fire extinguishing agent.

7. The generator set according to claim 6, characterized in that: A heat dissipation ball is also arranged in the shell.

8. The generator set according to claim 7, characterized in that: The heat dissipation ball is located between the installation position and the inner wall of the installation portion.

9. The generator set according to claim 8, characterized in that: A heat insulation layer is also arranged inside the shell, and the heat insulation layer is arranged closely to the inside of the shell.

10. The generator set according to any one of claims 2 to 9, characterized in that: The fire extinguishing device is installed at the engine, the generator, or the fuel supply portion, and the fire extinguisher body sprays a fire extinguishing gas toward the engine, the generator, or the fuel supply portion.

11. The generator set according to claim 10, characterized in that: The outer surface of the shell is provided with a connecting portion.

12. The generator set according to claim 1 or 11, characterized in that: It also includes a flameout device, which keeps the generator extinguished when the fire extinguisher body is activated.

13. The generator set according to claim 12, characterized in that: It also includes an alarm device, which sounds an alarm when the fire extinguisher body is activated.

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