Automatic fire extinguishing device

Abstract

The utility model relates to the technical field of fire fighting, in particular to an automatic fire extinguishing device which comprises a fire extinguishing container, a fire extinguishing device and a fire extinguishing device, the conveying pipeline is connected to the fire extinguishing container and serves as a component for conveying the fire extinguishing medium; the gas quantity detection piece and the transmission control piece are respectively connected to at least one of the fire extinguishing container and the transmission pipeline; the fire alarm detection piece is used as a component for detecting the fire alarm condition and is provided with a detection end capable of rotating around at least one axis; and the control device is electrically connected to the fire alarm detection piece and the transmission control piece. The movement range of the detection end of the fire alarm detection piece is planned, and the detection end is movably arranged and can have various movement paths, so that on one hand, it can be ensured that the detection end is aligned with the to-be-detected area, and the frequency of adjusting the position of the detection end can be reduced even if the to-be-detected area is replaced; on the other hand, the periphery of the to-be-detected area can be subjected to cyclic detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fire fighting, specifically relates to an automatic fire extinguishing device. BACKGROUND

[0002] Electric spark processing, also known as discharge processing, its working principle is to use the pulse spark discharge phenomenon between the electrode and the workpiece. In the discharge moment, local and transient high temperature is generated, and the material is etched away by using the high temperature, so that the workpiece is processed. In the prior art, such as Figure 1 In practical application scenarios such as electric spark forming and electric spark honeycomb grinding, the working fluid with kerosene as the base body is often used in the processing process, and the working fluid and the workpiece 7 are placed in the machine tool oil tank 8.

[0003] Although the special electric spark forming working fluid used at present has a high flash point and is relatively not easy to be ignited. However, a large amount of heat is generated in the processing process. If the working fluid level is too low or the liquid condition is not ideal, the working fluid in the local area is easy to be heated sharply, even exceeding the flash point, and the risk of fire exists.

[0004] The existing machine tool is usually equipped with an inverted fire extinguisher as an automatic fire extinguishing device, which can automatically spray extinguishing agent after sensing temperature. However, this fire extinguishing device has the obvious problem of small sensing range, and in some cases cannot timely and comprehensively respond to the fire hazard.

[0005] In addition to the above-mentioned fire extinguishing device, part of the machine tool is also provided with a fire alarm probe, which sends a fire alarm signal to the control cabinet through a photosensitive diode. However, similarly, the fire alarm probe also faces the dilemma of small sensing range, and it is difficult to accurately and widely detect the fire signs that may appear in the whole working area, and cannot provide reliable early warning for timely fire extinguishing measures.

[0006] Therefore, how to solve the above-mentioned problems existing in the prior art has become the research and solution of the utility model. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing an automatic fire extinguishing device.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0009] An automatic fire extinguishing device comprises:

[0010] A fire extinguishing container internally stores a fire extinguishing medium;

[0011] A transmission pipeline is connected to the fire extinguishing container as a component for transmitting the fire extinguishing medium;

[0012] The gas amount detecting member and the transmission control member are connected to at least one of the fire extinguishing container and the transmission pipeline respectively;

[0013] The fire alarm detecting member, as a component for detecting a fire alarm condition, has a detecting end rotatable around at least one axis;

[0014] The control device is electrically connected to the fire alarm detecting member and the transmission control member.

[0015] In the above scheme, the gas amount detecting member is used to detect the gas amount (such as the gas amount inside the fire extinguishing container), and the transmission control member is used to control the transmission process of the fire extinguishing medium. Taking the transmission control member as an example, the gas amount detecting member is explained as follows: the transmission control member can be connected to the fire extinguishing container or the transmission pipeline; the transmission control member can include two control sub-members, one of which is connected to the fire extinguishing container, and the other is connected to the transmission pipeline.

[0016] The fire alarm detecting member is used to detect whether a fire breaks out. After a fire breaks out, the fire alarm detecting member transmits a fire signal to the control device, which controls the transmission control member to make the fire extinguishing medium be transmitted to the fire area through the transmission pipeline to achieve timely fire extinguishing.

[0017] The detection end of the fire alarm detecting member is planned for the range of movement. Since the detection end can be movably arranged and can have multiple movement paths, on the one hand, it can be aligned with the to-be-detected area, and even if the to-be-detected area is replaced, the frequency of adjusting its position can be reduced; on the other hand, it can perform a patrol detection on the periphery of the to-be-detected area; and on the other hand, a larger detection range can be ensured through the patrol detection.

[0018] Further technical solutions, the transmission pipeline includes at least two sequentially connected (also can be said to be connected) sub-pipelines, wherein one of the sub-pipelines is connected to the fire extinguishing container.

[0019] Through the arrangement of the sub-pipeline, especially the arrangement of the bendable sub-pipeline, the transmission pipeline can transmit the fire extinguishing medium to more areas, thereby improving the fire extinguishing efficiency in the case of a larger fire area.

[0020] Taking the sub-pipeline as an example, the following main pipeline and branch pipeline are explained as follows: when the transmission control member is connected to the transmission pipeline, it is connected to the sub-pipeline close to the fire extinguishing container.

[0021] Further technical solutions, the transmission pipeline includes a main pipeline and a branch pipeline connected to each other (also can be said to be connected), and the main pipeline is connected to the fire extinguishing container;

[0022] The branch pipelines are arranged in multiple numbers, and each branch pipeline is uniformly distributed along the extension direction of the main pipeline.

[0023] The single main pipe cooperates with multiple slave pipes, and the slave pipes are uniformly distributed along the extension direction of the main pipe, so that the fire extinguishing medium enters the fire area from multiple cutting areas, and the dispersion of the fire extinguishing medium improves the fire extinguishing efficiency in the case of a large fire area.

[0024] The arrangement of the slave pipes can refer to the drawings.

[0025] Further, the end of the transmission pipe away from the fire extinguishing container is provided with a bubble stone.

[0026] In some cases, such as when the fire extinguishing medium is liquid carbon dioxide and the fire extinguishing treatment is performed on the water surface, the fire extinguishing medium will form large bubbles after being sprayed from the transmission pipe, and when the bubbles float to the water surface, they will cause the liquid surface to churn, thereby bringing external air under the liquid surface and affecting the fire extinguishing effect.

[0027] By arranging the bubble stone, the fire extinguishing medium sprayed from the transmission pipe is first dispersed into small bubbles by the bubble stone, so that the liquid surface is more stable and the fire extinguishing speed is improved.

[0028] The bubble stone can be arranged at the end of the slave pipe.

[0029] Further, the bubble stone is in a spherical shape.

[0030] The spherical bubble stone can uniformly disperse carbon dioxide from the surface of the sphere to all directions, and the generated bubbles are relatively uniform in size and distribution. In the area where uniform coverage of carbon dioxide gas is required, a relatively dense and uniform bubble layer can be formed, so that carbon dioxide can be more uniformly mixed with air, thereby reducing the oxygen concentration and to some extent inhibiting the fire.

[0031] Further, the fire extinguishing medium is liquid carbon dioxide.

[0032] The use of liquid carbon dioxide can increase the storage capacity of the fire extinguishing medium in the fire extinguishing container.

[0033] The use of carbon dioxide as a fire extinguishing medium can achieve efficient fire extinguishing while ensuring the scope of application of the application, especially ensuring that the application can be applied to extinguishing the working liquid used for electric spark machining.

[0034] The use of carbon dioxide as a fire extinguishing medium can avoid pollution of the above-mentioned working liquid and also avoid pollution of the workpiece subjected to electric spark machining.

[0035] Further, at least part of the transmission pipe is a low-temperature-resistant transmission pipe.

[0036] In the delivery process of liquid carbon dioxide, the temperature is usually low, and the low-temperature resistant conveying pipe can adapt to the low-temperature condition and is not prone to brittle fracture and other problems.

[0037] Further technical solutions, the gas amount detection member is provided as a pressure gauge.

[0038] The pressure gauge can help observe the gas amount, and avoid affecting the fire extinguishing effect due to the failure to find that the fire extinguishing medium is insufficient in time.

[0039] Further technical solutions, the fire alarm detection member is provided as a security camera.

[0040] By adopting the special security camera, the detection accuracy of the fire alarm condition can be improved.

[0041] Further technical solutions, further comprising an alarm lamp electrically connected to the control device.

[0042] The alarm lamp can timely remind the surrounding personnel and provide more safety protection.

[0043] As for the "first", "second" and the like used in this paper, it is not the meaning of special order or sequence, nor is it used to limit the case, which is only for distinguishing the components or operations described with the same technical terms.

[0044] As for the "connection" or "positioning" used in this paper, it can mean that two or more components or devices are in direct physical contact with each other, or are indirectly in physical contact with each other, or can mean that two or more components or devices are in operation or action.

[0045] As for the "contain", "include", "have" and the like used in this paper, they are all open terms, that is, they mean containing but not limited to.

[0046] As for the words (terms) used in this paper, except for special notes, they usually have the usual meaning of each word used in this field, in the content of the case and in the special content. Some words used to describe the case will be discussed below or elsewhere in the specification to provide additional guidance for those skilled in the art on the description of the case.

[0047] As for the "front", "back", "up", "down", "left", "right" and the like used in this paper, they are directional words, which are only used to describe the positional relationship between structures in the case, and are not used to limit the protection scheme and the specific direction of the actual implementation of the case.

[0048] The working principle and advantages of the utility model are as follows:

[0049] The fire alarm detection piece detects whether a fire occurs, and after the fire occurs, the fire alarm detection piece transmits a fire signal to a control device, and the control device controls a transmission control piece, so that the fire extinguishing medium is transmitted to the fire area through the transmission pipeline to achieve timely fire extinguishing.

[0050] The detection end of the fire alarm detection piece is planned in an active range, and since the detection end can be actively arranged and can have multiple active paths, on the one hand, the detection end can be aligned with the to-be-detected area, and even if the to-be-detected area is replaced, the frequency of adjusting the position can be reduced; on the other hand, the periphery of the to-be-detected area can be detected in a patrol manner; and on the other hand, a larger detection range can be ensured through the patrol detection, and reliable early warning can be provided for timely fire extinguishing measures. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 It is a structure schematic view of an automatic fire extinguishing device of an embodiment of the utility model;

[0052] Figure 2 It is a structure schematic view of a fire alarm detection piece of an embodiment of the utility model;

[0053] Figure 3 It is a related circuit schematic view of an automatic fire extinguishing device of an embodiment of the utility model.

[0054] In the above drawings: 1, fire extinguishing container; 2, transmission pipeline; 21, sub-pipeline; 22, main pipeline; 23, from pipeline; 3, gas amount detection piece; 4, transmission control piece; 5, fire alarm detection piece; 51, detection end; 52, mounting end; 6, bubble stone; 7, workpiece; 8, machine tool oil tank. DETAILED DESCRIPTION

[0055] The utility model will be further described below in combination with the drawings and embodiments:

[0056] Embodiment: the present case will be clearly explained in the following drawings and detailed description, any person skilled in the art can change and modify the technology taught by the present case after understanding the embodiment of the present case, which does not deviate from the spirit and scope of the present case.

[0057] The language in this paper is only for describing specific embodiments and is not intended to limit the present case. The singular form such as "one", "this", "this", "this" and "this" as used herein also includes the plural form.

[0058] Reference Figures 1-3 An automatic fire extinguishing device comprises:

[0059] The fire extinguishing container 1 stores the fire extinguishing medium in the inside;

[0060] The transmission pipeline 2 is connected to the fire extinguishing container 1 and serves as a component for transmitting the fire extinguishing medium.

[0061] The gas amount detecting member 3 and the transmission control member 4 are connected to at least one of the fire extinguishing container 1 and the transmission pipeline 2 respectively;

[0062] The fire alarm detecting member 5, as a component for detecting fire alarm, has a detecting end 51 rotatable along at least one axis;

[0063] The control device (not labeled in the figure) is electrically connected to the fire alarm detecting member 5 and the transmission control member 4.

[0064] The gas amount detecting member 3 is used for detecting the gas amount (such as the gas amount inside the fire extinguishing container 1), and the transmission control member 4 is used for controlling the transmission process of the fire extinguishing medium. Taking the transmission control member 4 as an example, the gas amount detecting member 3 is explained as follows: the transmission control member 4 can be connected to the fire extinguishing container 1 or the transmission pipeline 2; the transmission control member 4 can include two control sub-members, one of which is connected to the fire extinguishing container 1, and the other of which is connected to the transmission pipeline 2.

[0065] In some embodiments, as shown in the figure, the fire alarm detecting member 5 can rotate around the P axis, the R axis and the T axis, wherein the P axis is parallel to the horizontal direction, the R axis has an included angle with the horizontal direction, and the T axis is perpendicular to the horizontal direction.

[0066] The fire extinguishing container 1 can be a liquid carbon dioxide cylinder, the transmission control member 4 can be an electromagnetic valve, and the control device can be an existing controller or the like, which are not limited herein.

[0067] The fire alarm detecting member 5 is used to detect whether a fire occurs. After a fire occurs, the fire alarm detecting member 5 transmits a fire signal to the control device, and the control device controls the transmission control member 4, so that the fire extinguishing medium is transmitted to the fire area through the transmission pipeline 2 to achieve timely fire extinguishing.

[0068] The activity range of the detecting end 51 of the fire alarm detecting member 5 is planned. Since the detecting end 51 can be movably arranged and has multiple movement paths, on the one hand, it can be aligned with the to-be-detected area, and even if the to-be-detected area is replaced, the frequency of adjusting the position can be reduced; on the other hand, it can perform a patrol detection on the periphery of the to-be-detected area; and on the other hand, a larger detection range can be ensured through the patrol detection, thereby providing reliable early warning for timely fire extinguishing measures.

[0069] The specific implementation mode of the above-mentioned patrol detection of the detecting end 51 is not limited, and multiple motors can be used to drive multiple axes to move.

[0070] In some embodiments, the fire alarm detecting member 5 includes a connected mounting end 52 (not limited to the mounting position) and the detecting end 51.

[0071] Reference is made to Figure 1In the embodiment, the transmission pipeline 2 comprises at least two sequentially connected sub-pipelines 21, one of which is connected to the fire extinguishing container 1.

[0072] In some embodiments, the sub-pipeline 21 can be curved, which can be realized by using rubber material.

[0073] In some embodiments, the sub-pipeline 21 is two, one of which is connected to the fire extinguishing container 1.

[0074] By arranging the sub-pipeline 21, especially by arranging the curved sub-pipeline 21, the transmission pipeline 2 can transmit the fire extinguishing medium to more areas, thereby improving the fire extinguishing efficiency in the case of a large fire area.

[0075] Referring to Figure 1 In the embodiment, the transmission pipeline 2 comprises a main pipeline 22 and a plurality of branch pipelines 23 connected in sequence, the main pipeline 22 being connected to the fire extinguishing container 1.

[0076] The branch pipelines 23 are arranged in a plurality of numbers and are uniformly distributed along the extension direction of the main pipeline 22.

[0077] In some embodiments, the end of the main pipeline 22 away from the fire extinguishing container 1 is a closed end.

[0078] In some embodiments, the branch pipeline 23 is a hose, such as a rubber hose.

[0079] In some embodiments, the end of the branch pipeline 23 away from the main pipeline 22 is provided with a bubble stone 6.

[0080] In some embodiments, the main pipeline 22 comprises two sub-pipelines connected in sequence, one of which is connected to the fire extinguishing container 1, and a plurality of branch pipelines 23 are connected to each of the two sub-pipelines.

[0081] The embodiment adopts a single main pipeline 22 cooperating with a plurality of branch pipelines 23, and the branch pipelines 23 are uniformly distributed along the extension direction of the main pipeline 22, so that the fire extinguishing medium can enter the fire area from a plurality of cutting-in areas, thereby improving the fire extinguishing efficiency in the case of a large fire area by dispersing the fire extinguishing medium.

[0082] Referring to Figure 1 In the embodiment, the end of the transmission pipeline 2 away from the fire extinguishing container 1 is provided with a bubble stone 6.

[0083] In some cases, such as when the fire extinguishing medium is liquid carbon dioxide and the fire extinguishing treatment is performed on the fire on the water surface, the fire extinguishing medium will form large bubbles after being sprayed out of the transmission pipeline 2, and when these bubbles float to the water surface, they will cause the liquid surface to churn, thereby bringing external air under the liquid surface and affecting the fire extinguishing effect.

[0084] Through the arrangement of the bubble stone 6, after the fire extinguishing medium is sprayed from the transmission pipeline 2, the bubble stone 6 disperses the larger bubbles into a plurality of small bubbles, so that the liquid surface is more stable, and the fire extinguishing speed is improved.

[0085] Referring to Figure 1 In the embodiment, the bubble stone 6 is spherical.

[0086] The spherical bubble stone 6 can uniformly disperse carbon dioxide from the surface of the sphere to the surrounding, and the generated bubbles are relatively uniform in size and distribution. In the area where uniform coverage of carbon dioxide gas is required, a relatively dense and uniform bubble layer can be formed, so that the carbon dioxide is more uniformly mixed with air, the oxygen concentration is reduced, and the fire is inhibited to a certain extent.

[0087] In the embodiment, the fire extinguishing medium is liquid carbon dioxide.

[0088] The use of liquid carbon dioxide can increase the storage capacity of the fire extinguishing medium in the fire extinguishing container 1.

[0089] The use of carbon dioxide as the fire extinguishing medium can achieve efficient fire extinguishing while ensuring the application scope of the application, especially ensuring that the application can be applied to the case of extinguishing the working liquid used for electric spark machining.

[0090] The use of carbon dioxide as the fire extinguishing medium can avoid pollution of the above-mentioned working liquid and also avoid pollution of the workpiece 7 subjected to electric spark machining.

[0091] In the embodiment, at least part of the transmission pipeline 2 is a low-temperature-resistant transmission pipeline 2.

[0092] In some embodiments, at least part (such as the main pipeline 22 described above) of the transmission pipeline 2 is made of copper or copper alloy.

[0093] The specific temperature range of the low-temperature-resistant transmission pipeline 2 is not limited here, and the temperature at the time of existing liquid carbon dioxide output can be referred to.

[0094] During the delivery of liquid carbon dioxide, the temperature is usually low, and the low-temperature-resistant transmission pipeline 2 can adapt to such low-temperature conditions and is not prone to brittle fracture and other problems.

[0095] In the embodiment, the gas amount detection member 3 is arranged as a pressure gauge.

[0096] The pressure gauge can help observe the gas amount and avoid affecting the fire extinguishing effect due to the failure to discover the lack of fire extinguishing medium in time.

[0097] In the embodiment, the fire alarm detection member 5 is arranged as an intelligent security camera.

[0098] In some embodiments, the fire alarm detection member 5 is set as an existing Hikvision NP-V2W fire alarm camera, which is used to detect the fire alarm condition and give a fire alarm signal.

[0099] By using a special fire alarm camera, the detection accuracy and reaction speed of the fire alarm condition can be improved.

[0100] Referring to Figure 3 In the embodiment, an alarm lamp (not labeled in the figure) is also included, which is electrically connected to the control device.

[0101] The alarm lamp is set to timely remind the surrounding personnel and provide more safety protection.

[0102] In summary, the present application is used for electric spark machining, but is not limited thereto. Compared with the prior art, the present application improves the reaction speed, fire extinguishing speed and monitoring range, has an expansion function, is green and environmentally friendly, and better solves the fire prevention problem in electric spark forming machining.

[0103] Referring to Figure 3 The figure illustrates the working process of the present application in a specific embodiment:

[0104] K1 (corresponding to the fire alarm detection member 5) is initially disconnected, when an alarm occurs, K1 is turned on, so that K2 (corresponding to the control device) is powered;

[0105] S1 (corresponding to the manual control fire extinguishing button) is connected in parallel with K1, S1 is initially disconnected, and when S1 is turned on, K2 is also powered, which is used for manual control of fire extinguishing and periodic testing of the gas circuit;

[0106] K2 has a group of contacts corresponding to the electromagnetic valve (corresponding to K3) and the alarm lamp (corresponding to BJ), which are initially disconnected, so that the electromagnetic valve and the alarm lamp remain in a closed state, when an alarm signal is triggered, the coil of K2 is powered, the contacts are connected, so that the electromagnetic valve (corresponding to the transmission control member 4) and the alarm lamp become open.

[0107] The contacts in K2 corresponding to K4 (corresponding to the machining main circuit contactor coil) are initially connected, when an alarm occurs, the contacts are disconnected, so that the machine tool stops machining, further accelerating the fire extinguishing.

[0108] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic fire extinguishing apparatus, characterized by: The application relates to a fire extinguishing device, comprising: a fire extinguishing container (1) for storing fire extinguishing medium; a transmission pipeline (2) connected to the fire extinguishing container (1) and serving as a component for transmitting the fire extinguishing medium; a gas amount detecting member (3) and a transmission control member (4), both of which are connected to at least one of the fire extinguishing container (1) and the transmission pipeline (2); a fire alarm detecting member (5) serving as a component for detecting a fire alarm condition and having a detecting end (51) capable of rotating around at least one axis; a control device electrically connected to the fire alarm detecting member (5) and the transmission control member (4).

2. An automatic fire extinguishing apparatus according to claim 1, wherein: The transmission pipeline (2) comprises at least two sequentially connected sub-pipelines (21), wherein one of the sub-pipelines (21) is connected to the fire extinguishing container (1).

3. An automatic fire extinguishing apparatus according to claim 1, wherein: The transmission pipeline (2) comprises a main pipeline (22) and a branch pipeline (23), the main pipeline (22) is connected to the fire extinguishing container (1); the branch pipeline (23) is provided in plurality, and each branch pipeline (23) is uniformly distributed along the extension direction of the main pipeline (22).

4. An automatic fire extinguishing apparatus according to claim 1, wherein: The end of the transmission pipeline (2) away from the fire extinguishing container (1) is provided with a bubble stone (6).

5. An automatic fire extinguishing apparatus according to claim 4, wherein: The bubble stone (6) is spherical.

6. An automatic fire extinguishing apparatus according to any one of claims 1-5, characterized in that: The fire extinguishing medium is liquid carbon dioxide.

7. An automatic fire extinguishing apparatus according to claim 6, wherein: At least part of the transmission pipeline (2) is a low-temperature-resistant transmission pipeline.

8. An automatic fire extinguishing apparatus according to any one of claims 1-5, characterized in that: The gas amount detecting member (3) is provided as a pressure gauge.

9. An automatic fire extinguishing apparatus according to any one of claims 1-5, characterized in that: The fire alarm detecting member (5) is provided as an infrared camera.

10. An automatic fire extinguishing apparatus according to any one of claims 1-5, characterized in that: Further comprising an alarm lamp electrically connected to the control device.

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