A bottom valve leakage fire extinguishing device for polydimethylsilane reaction kettle

Abstract

The utility model relates to the field of chemical equipment safety technology, concretely relates to a bottom valve leakage fire extinguishing device for polydimethylsilane reaction kettle, including hemispherical cover body, the outer peripheral wall fixed connection of hemispherical cover body has rigid connection pipe, the cavity that surrounds of rigid connection pipe with hemispherical cover body intercommunication, the conveying pipe that the one end of rigid connection pipe away from hemispherical cover body is provided with, and the support frame of rigid connection pipe outer cover is provided with locking piece. By being provided with hemispherical cover body, can provide relatively closed fire extinguishing space, and the fire extinguishing medium storage is sent fire extinguishing medium in the cavity that surrounds to hemispherical cover body through the cooperation of rigid connection pipe and conveying pipe, and is sent to the cavity that surrounds to hemispherical cover body unceasingly, carries out sustained and efficient fire extinguishing, adopts the fire extinguishing mode that extinguishes fire and closes fire in combination, can realize the quick fire extinguishing when the fire of the bottom valve leakage of reaction kettle causes.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment safety technology, specifically to a fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor. Background Technology

[0002] Polydimethylsilane is a key precursor polymer for synthesizing high-performance ceramic material silicon carbide fiber. The production process of polydimethylsilane usually involves harsh polymerization reaction conditions such as high temperature and high pressure. In this production process, the reactor is the core equipment, and the bottom valve at the bottom of the reactor is the key component connecting the reactor to the downstream process. The bottom valve of the reactor is connected to the downstream process through a pressurized pipeline.

[0003] In the existing production process of polydimethylsilane, due to the extremely strong self-ignition properties of polydimethylsilane, the bottom valve of the reactor is prone to sealing failure after long-term use. When the bottom valve seal fails, polydimethylsilane will continue to leak and burn, forming a continuous fire stream. Traditional fire extinguishers are unable to effectively extinguish such fires because they cannot isolate oxygen.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned issues, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide a fire extinguishing device for bottom valve leakage in polydimethylsilane reactors that can quickly extinguish fires.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor includes a hemispherical enclosure. A rigid connecting pipe is fixedly connected to the outer peripheral wall of the hemispherical enclosure. The central axis of the hemispherical enclosure coincides with the axis of the rigid connecting pipe. The rigid connecting pipe communicates with the cavity enclosed by the hemispherical enclosure. A delivery pipe communicating with the rigid connecting pipe is provided at the end of the rigid connecting pipe away from the hemispherical enclosure. The rigid connecting pipe and the delivery pipe are arranged perpendicularly. A fire extinguishing medium storage container is connected to the end of the delivery pipe away from the rigid connecting pipe. A sleeve is provided for the rigid connecting pipe. A support frame for sliding connection of a rigid connecting pipe is provided, the support frame is provided with a locking element for limiting the sliding of the support frame relative to the rigid connecting pipe, the inner side wall of the hemispherical cover is provided with an annular embedding groove arranged around the axis of the hemispherical cover, the width of the opening of the annular embedding groove is greater than half the radius of the hemispherical cover, a flame-retardant cotton board is embedded in the annular embedding groove, a first notch penetrating the hemispherical cover is provided on the side of the hemispherical cover away from the rigid connecting pipe, and a second notch penetrating the flame-retardant cotton board is provided at the position corresponding to the first notch.

[0007] As an improvement of this utility model, a one-way valve is provided on the rigid connecting pipe, and the one-way valve is close to the hemispherical cover relative to the support frame.

[0008] As an improvement of this utility model, the support frame includes a sleeve and at least three support rods. The sleeve is sleeved outside the rigid connecting pipe and arranged coaxially with the rigid connecting pipe. One end of each support rod is fixedly connected to the outer peripheral wall of the sleeve, and the other end of each support rod is arranged in a direction away from the hemispherical cover. The other ends of each support rod are located on the same horizontal plane. Each support rod is distributed around the axis of the sleeve. Each support rod is arranged at an angle from the end connected to the sleeve to the other end, gradually moving away from the axis of the sleeve.

[0009] As an improvement of this utility model, each of the support rods is provided with an anti-slip pad at the end that is not connected to the sleeve.

[0010] As an improvement of this utility model, the locking component includes a bolt, the outer peripheral wall of the sleeve is provided with a threaded hole, the bolt is screwed into the threaded hole, and one end of the bolt located inside the sleeve abuts against the outer peripheral wall of the rigid connecting pipe.

[0011] As an improvement of this utility model, the hemispherical cover is a heat-resistant metal hemispherical cover.

[0012] As an improvement of this utility model, the rigid connecting pipe and the conveying pipe are integrally connected.

[0013] As an improvement of this utility model, both the rigid connecting pipe and the conveying pipe are heat-resistant pipes.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects: By incorporating a hemispherical enclosure, a relatively enclosed fire extinguishing space can be provided. The fire extinguishing medium storage tank, through a rigid connecting pipe and a delivery pipe, delivers the fire extinguishing medium into the cavity enclosed by the hemispherical enclosure, continuously supplying it to the cavity for sustained and efficient fire extinguishing. By combining direct fire extinguishing with enclosed fire extinguishing, a fire extinguishing method can be adopted, enabling rapid fire extinguishing when a fire is caused by a leak in the bottom valve of the reactor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a bottom valve leakage extinguishing device for a polydimethylsilane reactor according to the present invention (the extinguishing medium storage device is omitted in the figure). Figure 2This is a partially exploded structural diagram of a bottom valve leakage extinguishing device for a polydimethylsilane reactor according to the present invention (the extinguishing medium storage device is omitted in the figure).

[0016] The corresponding markings in the diagram are as follows: 10 - Hemispherical dome; 12-Flame-retardant cotton board; 13-First notch; 20 - Rigid connecting pipe; 21 - Delivery pipe; 22-Check valve; 30 - Support frame; 31 - Sleeve; 32 - Support rod; 33 - Bolt. Detailed Implementation

[0017] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] The terms "first," "second," etc., used in the specification, claims, and drawings of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0019] like Figures 1-2 As shown, this embodiment provides a bottom valve leakage extinguishing device for a polydimethylsilane reactor, including a hemispherical cover 10. In this embodiment, the hemispherical cover 10 is a heat-resistant metal hemispherical cover, ensuring that the hemispherical cover 10 does not melt or deform when subjected to heat. A rigid connecting pipe 20 is fixedly connected to the outer peripheral wall of the hemispherical cover 10. The central axis of the hemispherical cover 10 coincides with the axis of the rigid connecting pipe 20. The rigid connecting pipe 20 communicates with the cavity enclosed by the hemispherical cover 10. The rigid connecting pipe 20 is located away from the hemispherical cover 10. One end is provided with a delivery pipe 21 that communicates with the rigid connecting pipe 20. The end of the delivery pipe 21 away from the rigid connecting pipe 20 is connected to a fire extinguishing medium storage device (not shown in the figure). It should be noted that the fire extinguishing medium storage device is a conventional fire extinguishing medium storage device, which will not be described in detail here. Specifically, the rigid connecting pipe 20 and the delivery pipe 21 are integrally connected and arranged vertically. In this embodiment, both the rigid connecting pipe 20 and the delivery pipe 21 are heat-resistant pipes, which effectively improves the high temperature resistance of the rigid connecting pipe 20 and the delivery pipe 21.

[0020] A support frame 30 is slidably connected to the rigid connecting pipe 20 and is fitted over the rigid connecting pipe 20. The support frame 30 is equipped with a locking element to limit the sliding of the support frame 30 relative to the rigid connecting pipe 20. An annular embedding groove (not shown in the figure) is formed on the inner wall of the hemispherical cover 10, arranged around the axis of the hemispherical cover. The width of the opening of the annular embedding groove is greater than half the radius of the hemispherical cover 10. A flame-retardant cotton board 12 is embedded in the annular embedding groove. A first notch 13 penetrating the hemispherical cover 10 is formed on the side of the hemispherical cover 10 away from the rigid connecting pipe 20. A second notch penetrating the flame-retardant cotton board 12 is formed at a position corresponding to the first notch 13. When a fire is detected caused by a leak in the bottom valve of the reactor, the operator should hold the rigid connecting pipe 20 and align and cover the bottom valve with the side of the hemispherical cover 10 away from the rigid connecting pipe 20, while simultaneously ensuring that the bottom valve connected to the reactor... The pressurized pipeline passes through the first notch 13 and the second notch to ensure that the hemispherical cover 10 and the reactor are in close contact. The locking device is loosened, and the relative position of the support frame 30 and the rigid connecting pipe 20 is adjusted so that the support frame 30 abuts the ground. The locking device is then tightened, and the fire extinguishing medium storage device is activated. The fire extinguishing medium in the fire extinguishing medium storage device passes through the delivery pipe 21 and the rigid connecting pipe 20 in sequence, and finally enters the cavity enclosed by the hemispherical cover 10 for fire extinguishing. The hemispherical cover 10 provides a relatively closed fire extinguishing space. The fire extinguishing medium storage device delivers the fire extinguishing medium into the cavity enclosed by the hemispherical cover 10 through the rigid connecting pipe 20 and the delivery pipe 21, and continuously delivers it into the cavity enclosed by the hemispherical cover 10 for continuous and efficient fire extinguishing. The fire extinguishing method, which combines direct fire extinguishing by delivering the fire extinguishing medium and closed fire extinguishing, can quickly extinguish a fire caused by a leak in the bottom valve of the reactor.

[0021] A one-way valve 22 is installed on the rigid connecting pipe 20. The one-way valve 22 is close to the hemispherical cover 10 relative to the support frame 30. It should be noted that the distance between the connection position of the rigid connecting pipe 20 and the hemispherical cover 10 and the one-way valve 22 is as small as possible. This setting can prevent flame backflow and has a high safety level.

[0022] The support frame 30 includes a sleeve 31 and at least three support rods 32. In this embodiment, three support rods 32 are used as an example for explanation. The sleeve 31 is sleeved outside the rigid connecting pipe 20 and is arranged coaxially with the rigid connecting pipe 20. One end of each support rod 32 is fixedly connected to the outer peripheral wall of the sleeve 31, and the other end of each support rod 31 is set in a direction away from the hemispherical cover 10. The other ends of each support rod 31 are located on the same horizontal plane. Each support rod 32 is distributed around the axis of the sleeve 31. Each support rod 32 is arranged at an angle from the end connected to the sleeve 31 to the other end, gradually moving away from the axis of the sleeve 31. This arrangement provides high support stability.

[0023] Each support rod 32 is provided with an anti-slip pad (not shown in the figure) at the end that is not connected to the sleeve 31. By providing the anti-slip pad, the anti-slip effect of the support frame 30 can be effectively improved.

[0024] The locking component includes a bolt 33. The outer peripheral wall of the sleeve 31 has a threaded hole (not shown in the figure). The bolt 33 is screwed into the threaded hole. One end of the bolt 33 inside the sleeve 31 abuts against the outer peripheral wall of the rigid connecting pipe 20. In use, the bolt 33 is loosened, the relative position of the rigid connecting pipe 20 and the sleeve 31 is adjusted, and then the bolt 33 is tightened so that one end of the bolt 33 inside the sleeve 31 abuts against the outer peripheral wall of the rigid connecting pipe 20. Through the cooperation of the sleeve 21, the rigid connecting pipe 20 and the bolt 33, the inclination of the rigid connecting pipe 20 can be adjusted to make it suitable for reactors of different heights.

[0025] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor, characterized in that, The device includes a hemispherical enclosure, with a rigid connecting pipe fixedly connected to its outer peripheral wall. The central axis of the hemispherical enclosure coincides with the axis of the rigid connecting pipe. The rigid connecting pipe communicates with the cavity enclosed by the hemispherical enclosure. A delivery pipe, communicating with the rigid connecting pipe, is provided at the end of the rigid connecting pipe away from the hemispherical enclosure. The rigid connecting pipe and the delivery pipe are arranged perpendicularly. A fire extinguishing medium storage device is connected to the end of the delivery pipe away from the rigid connecting pipe. A support, slidably connected to the rigid connecting pipe, is fitted over the rigid connecting pipe. The support frame is equipped with a locking element to restrict the sliding of the support frame relative to the rigid connecting pipe. The inner sidewall of the hemispherical cover has an annular embedding groove arranged around the axis of the hemispherical cover. The width of the opening of the annular embedding groove is greater than half the radius of the hemispherical cover. A flame-retardant cotton board is embedded in the annular embedding groove. A first notch penetrating the hemispherical cover is opened on the side of the hemispherical cover away from the rigid connecting pipe. A second notch penetrating the flame-retardant cotton board is opened at a position corresponding to the first notch.

2. The fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 1, characterized in that, A one-way valve is provided on the rigid connecting pipe, and the one-way valve is close to the hemispherical cover relative to the support frame.

3. The fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 1, characterized in that, The support frame includes a sleeve and at least three support rods. The sleeve is fitted over the rigid connecting pipe and is coaxially arranged with the rigid connecting pipe. One end of each support rod is fixedly connected to the outer peripheral wall of the sleeve, and the other end of each support rod is oriented away from the hemispherical cover. The other ends of each support rod are located on the same horizontal plane. Each support rod is distributed around the axis of the sleeve. Each support rod is inclined away from the axis of the sleeve from the end connected to the sleeve to the other end.

4. A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 3, characterized in that, Each of the support rods has an anti-slip pad at the end that is not connected to the sleeve.

5. A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 3, characterized in that, The locking component includes a bolt, and the outer peripheral wall of the sleeve has a threaded hole. The bolt is screwed into the threaded hole, and one end of the bolt located inside the sleeve abuts against the outer peripheral wall of the rigid connecting pipe.

6. A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 1, characterized in that, The hemispherical cover is a heat-resistant metal hemispherical cover.

7. A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 1, characterized in that, The rigid connecting pipe and the delivery pipe are integrally connected.

8. A fire extinguishing device for bottom valve leakage in a polydimethylsilane reactor according to claim 1, characterized in that, Both the rigid connecting pipe and the conveying pipe are heat-resistant pipes.

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