Fire extinguishing equipment and fire extinguishing method for dust removal system of wind power blade manufacturing workshop

Abstract

The invention discloses fire extinguishing equipment and a fire extinguishing method for a dust removal system of a wind power blade manufacturing workshop. The fire extinguishing equipment comprises a spraying pipe, a flame sensor, an electric butterfly valve and a controller, the spray pipe and the flame sensor are both mounted in a dust suction pipe of the dust removal system, the spray pipe is communicated with the water supply pipe, and the electric butterfly valve is mounted on the water supply pipe; the input end of the controller is electrically connected with the flame sensor, and the output end of the controller is electrically connected with the electric butterfly valve. The spark extinguishing function of the wind power blade workshop dust adsorption system is added, fire spreading is effectively avoided, and the safety coefficient in the wind power blade manufacturing process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power blade manufacturing, and in particular to a fire extinguishing device and a fire extinguishing method for a dust removal system in a wind power blade manufacturing workshop. Background Art

[0002] The paint in the wind turbine blade manufacturing workshop is mainly composed of various resins and flammable paint gases. When these components accumulate to a certain concentration in a closed space, they will cause an explosion when they encounter an ignition source such as an open flame or an electric spark. The existing dust adsorption system (usually a 2*55kw high-power central dust removal system) equipped in the wind turbine blade workshop has a fast adsorption speed and can absorb a large amount of various dust particles to the intermediate filtration stage in a short time, which can easily create conditions for dust explosion in the suction pipeline. Therefore, the existing dust removal system has a fire hazard. Summary of the invention

[0003] Aiming at the defects in the prior art, the spark extinguishing function of the dust adsorption system in the wind turbine blade workshop is increased to improve the safety factor in the wind turbine blade manufacturing process. The present invention provides a fire extinguishing device for the dust removal system in the wind turbine blade manufacturing workshop; it includes a spray pipe, a flame sensor, an electric butterfly valve and a controller; the spray pipe and the flame sensor are both installed in the dust suction pipe of the dust removal system, wherein the spray pipe is connected to the water supply pipe, and the electric butterfly valve is installed on the water supply pipe; the input end of the controller is electrically connected to the flame sensor, and the output end of the controller is electrically connected to the electric butterfly valve.

[0004] The beneficial effect of this equipment is that: the controller is used to automatically convert the feedback signal of the flame sensor into an opening signal of the electric butterfly valve after exceeding the set value, so as to realize the automatic water spraying cooling and fire extinguishing function of the sprinkler pipe, effectively avoiding and reducing the probability of dust explosion in the dust suction pipe, making the production process of wind turbine blades safer.

[0005] Preferably, an audible and visual alarm is included which is electrically connected to the output end of the controller, and the output end of the controller is electrically connected to the dust removal system. Whenever the controller triggers the electric butterfly valve, the controller will also cut off the power supply of the dust removal system to prevent more dust from entering the dust suction pipe, thus preventing the fire from getting worse.

[0006] Preferably, the controller is an embedded single chip microcomputer. The technology of the embedded single chip microcomputer is very mature, its performance is stable, it works stably after being programmed into a set program, has a low failure rate, and can monitor the internal conditions of the dust suction pipe for a long time.

[0007] Preferably, there are multiple flame sensors, and all flame sensors are evenly spaced along the dust suction pipe of the dust removal system. The flame sensor is actually an optical sensor, specifically a lead salt infrared photoelectric sensor, whose working principle is based on the photoconductivity effect of semiconductor materials, converting infrared radiation energy into electrical signals, and can effectively monitor sparks, sparks, flash points, high temperature points, etc. The purpose of equidistantly arranging flame sensors is to improve detection accuracy, monitor the entire dust suction pipe throughout the process, and have a higher level of fire and explosion protection.

[0008] Preferably, the spray pipe is provided with multiple sections, and all the spray pipes are distributed at equal intervals along the dust suction pipe of the dust removal system. All the spray pipes are connected to the water supply pipe respectively.

[0009] The present invention also provides a fire extinguishing method for a dust removal system in a wind turbine blade manufacturing workshop, which is applied to the above-mentioned fire extinguishing equipment, and the method is as follows:

[0010] S1. When a heat source appears in the dust suction pipe, the flame sensor sends a detection signal to the controller. S2. The controller opens the electric butterfly valve, and the water in the water supply pipe is sprayed out from the sprinkler pipe to extinguish the fire and cool down until the detection signal of the flame sensor is reset. S3. Synchronously with S2, the controller operates the sound and light alarm until the detection signal of the flame sensor is reset. S4. Synchronously with S2, the controller stops the dust removal system until the detection signal of the flame sensor is reset.

[0011] The beneficial effects of this method are reflected in: this method can detect and handle the fire in the first time, and at the same time, sound and light alarms can be used to remind the staff, and the dust suction can be disconnected at the same time, so that the fire can be controlled in time, the probability of dust explosion in the dust suction pipe is greatly reduced, and the accident can be prevented from further expansion, thereby minimizing the loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0013] Figure 1 It is a structural diagram of embodiment 1.

[0014] In the drawings of the first embodiment: a spray pipe 1, a flame sensor 2, an audible and visual alarm 3, an electric butterfly valve 4, a controller 5, a water supply pipe 6, a dust removal system 7, and a dust suction pipe 8. DETAILED DESCRIPTION

[0015] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0016] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the invention belongs.

[0017] Embodiment 1:

[0018] like Figure 1 As shown, the first embodiment provides a fire extinguishing device for a dust removal system in a wind turbine blade manufacturing workshop, comprising a spray pipe 1, a flame sensor 2, an audible and visual alarm 3, an electric butterfly valve 4 and a controller 5. The spray pipe 1 and the flame sensor 2 are both installed in a dust suction pipe 8 of a dust removal system 7, a through hole for the spray pipe 1 and the flame sensor 2 to pass through is provided on the side wall of the dust suction pipe 8, and a sealing structure is provided at the through hole to prevent dust leakage.

[0019] The spray pipe 1 is connected to the water supply pipe 6, which provides a water source with a certain pressure. The spray pipe 1 itself is provided with multiple water outlets, and the pressurized water enters the spray pipe 1 and then sprays out from the water outlets. Covering a part of the dust suction pipe 8, in order to improve the coverage rate and enhance the fire extinguishing effect, the spray pipe 1 in this embodiment is provided with multiple sections, and all the spray pipes 1 are distributed at equal intervals along the dust suction pipe 8 of the dust removal system 7. All the spray pipes 1 are connected to the water supply pipe 6 respectively, and the electric butterfly valve 4 is installed on the water supply pipe 6, and the start and stop of all the spray pipes 1 are controlled by the electric butterfly valve 4. Similarly, there are multiple flame sensors 2, and all the flame sensors 2 are distributed at equal intervals along the dust suction pipe 8 of the dust removal system 7. The flame sensor 2 is actually an optical sensor, specifically a lead salt infrared photoelectric sensor, whose working principle is based on the photoconductivity effect of semiconductor materials, converting infrared radiation energy into electrical signals, and can effectively monitor sparks, sparks, flash points, high temperature points, etc. The purpose of arranging the flame sensors 2 at equal intervals is to improve the detection accuracy, monitor the entire dust suction pipe 8 throughout the entire process, and provide a higher level of fire and explosion protection.

[0020] In this embodiment, the number of the spray pipes 1 and the number of the flame sensors 2 are determined according to the specific length of the dust suction pipe 8, and the specific number is not limited in this embodiment.

[0021] The controller 5 in this embodiment is an embedded single chip microcomputer. The technology of the embedded single chip microcomputer is very mature, and its performance is stable. After being programmed into the set program, it works stably and has a low failure rate. It can monitor the internal situation of the dust suction pipe 8 for a long time. The input end of the controller 5 is electrically connected to the flame sensor 2, and the output end of the controller 5 is electrically connected to the electric butterfly valve 4, the sound and light alarm 3, and the dust removal system 7.

[0022] Embodiment 2:

[0023] Embodiment 2 provides a fire extinguishing method for a dust removal system in a wind turbine blade manufacturing workshop. Based on the fire extinguishing device for a dust removal system in a wind turbine blade manufacturing workshop in Embodiment 1, the following steps are automatically performed according to the setting program of the controller:

[0024] When a heat source appears in the dust suction pipe, the flame sensor sends a detection signal to the controller. S2. The controller opens the electric butterfly valve, and the water in the water supply pipe is sprayed out from the sprinkler pipe to extinguish the fire and cool down. At the same time, the controller activates the sound and light alarm and stops the dust removal system. Until the detection signal of the flame sensor is reset, the heat source in the dust suction pipe disappears, the controller closes the electric butterfly valve, stops the sound and light alarm, and resumes the dust removal system. This method can detect and handle the fire as soon as possible, and at the same time, the sound and light alarm reminds the staff, and the dust suction is disconnected at the same time, which can control the fire in time, greatly reduce the probability of dust explosion in the dust suction pipe, prevent the accident from further expansion, and minimize the loss.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A fire extinguishing device for the dust removal system of a wind turbine blade manufacturing workshop; characterized by: Including sprinkler pipe, flame sensor, electric butterfly valve and controller; The spray pipe and the flame sensor are both installed in the dust suction pipe of the dust removal system, wherein the spray pipe is connected to the water supply pipe, and the electric butterfly valve is installed on the water supply pipe; the input end of the controller is electrically connected to the flame sensor, and the output end of the controller is electrically connected to the electric butterfly valve.

2. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 1 is characterized in that: The utility model comprises an audible and visual alarm device which is electrically connected to the output end of the controller.

3. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 2 is characterized in that: The output end of the controller is electrically connected to the dust removal system.

4. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 1 is characterized in that: The controller is an embedded single chip microcomputer.

5. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 1 is characterized in that: The flame sensor is provided in plurality.

6. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 5 is characterized in that: All flame sensors are distributed at equal intervals along the dust suction pipe of the dust removal system.

7. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 1 is characterized in that: The spray pipe is provided with multiple sections.

8. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 7 is characterized in that: All the spray pipes are connected to the water supply pipes respectively.

9. The fire extinguishing equipment for the dust removal system of a wind turbine blade manufacturing workshop according to claim 7 is characterized in that: All the spray pipes are distributed at equal intervals along the dust suction pipe of the dust removal system.

10. A fire extinguishing method for a dust removal system in a wind turbine blade manufacturing workshop, characterized in that: Applied to the fire extinguishing equipment described in claim 3, the method is as follows: S1. When a heat source appears in the dust suction pipe, the flame sensor sends a detection signal to the controller; S2, the controller opens the electric butterfly valve, and the water in the water supply pipe is sprayed out from the sprinkler pipe to extinguish the fire and cool down until the detection signal of the flame sensor is reset; S3, synchronously with S2, the controller makes the sound and light alarm work until the detection signal of the flame sensor is reset; S4: Synchronously with S2, the controller stops the dust removal system until the detection signal of the flame sensor is reset.

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