Composite fireproof anti-explosion coating and assembly type protection system thereof

Abstract

The invention discloses a composite fireproof anti-explosion coating and an assembly type protection system thereof, and solves the technical problems that an existing extra-high voltage converter station valve hall plugging system is relatively inconvenient to disassemble and assemble, and a fireproof plate is not protected, so that the structure of the fireproof plate is easy to break under relatively large explosion impact. The assembly type protection system comprises two transverse rods which are distributed in a mirror image mode and are parallel to each other, an assembly mechanism arranged between the two transverse rods, and two explosion reduction and energy absorption mechanisms which are arranged between the two transverse rods and are arranged on the two sides of the assembly mechanism respectively. And the composite fireproof anti-explosion coating is formed by spraying a polyurea fireproof coating on the fireproof plate and curing. The device is of a split structure and is convenient to mount and dismount; based on the synergistic effect of the composite fireproof anti-explosion coating and the explosion reduction energy absorption plate, the structure of the fireproof plate is protected under the explosion impact, the difficulty that the structure of the fireproof plate is broken under the explosion impact is improved, and the fireproof anti-explosion capacity of the assembly type protection system is enhanced on the whole.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire prevention and explosion resistance, and in particular relates to a composite fire and explosion resistance coating and an assembled protection system thereof. Background Art

[0002] The valve hall sealing system of a UHV converter station is large (up to 10m×10m). As a vulnerable part of the UHV converter station, the valve hall sealing system has high fire and explosion resistance requirements. Due to its large size and high fire and explosion resistance requirements, some UHV converter station valve hall sealing systems are integrated, resulting in a relatively heavy overall structure. However, the valve hall sealing system of a UHV converter station often requires repeated disassembly and installation to facilitate maintenance. Due to the integrated structure and overall heavy structure of the valve hall sealing system of a UHV converter station, its disassembly and installation are relatively inconvenient. Some UHV converter station valve hall sealing systems are usually composed of fireproof panels and other fireproof materials, and the fireproof panels are not protected. The fireproof panels have limited fire and explosion resistance and are easily broken under the impact of a large explosion, which greatly affects the fire and explosion resistance of the valve hall sealing system of the UHV converter station. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a composite fireproof and explosion-proof coating and its assembled protection system to solve the technical problems that the existing UHV converter station valve hall sealing system is inconvenient to disassemble and install, and the fireproof board is not protected, resulting in the fireproof board structure being easily broken under the impact of a large explosion.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A composite fireproof and explosion-resistant coating is formed by spraying and curing a polyurea fireproof coating. The polyurea fireproof coating comprises the following components in parts by weight: 26-28 parts of amino-terminated polytetrahydrofuran; 22-24 parts of hydrogenated phenylmethane diisocyanate; 18 parts of ammonium polyphosphate; 6-8 parts of dipentaerythritol; 7 parts of melamine; 12 parts of rutile titanium dioxide; 3-5 parts of aerogel slurry; 1-2 parts of gamma-aminopropyltriethoxysilane; and 30-35 parts of deionized water.

[0006] An assembled protection system for a composite fireproof and explosion-resistant coating comprises two mirror-distributed and mutually parallel cross bars, an assembly mechanism disposed between the two cross bars, and two explosion-reducing and energy-absorbing mechanisms disposed between the two cross bars and arranged on either side of the assembly mechanism; the assembly mechanism comprises a plurality of assembly plates disposed side by side between the two cross bars; the assembly plates comprise a mounting frame disposed between the two cross bars, and four fireproof and explosion-resistant composite plates mounted on the mounting frame.

[0007] Furthermore, the fireproof and explosion-proof composite panel includes an explosion-proof panel, two fireproof panels arranged on both sides of the explosion-proof panel, and a flexible fireproof layer arranged between the explosion-proof panel and the fireproof panel; the composite fireproof and explosion-proof coating is provided on the outer surface of the fireproof panel.

[0008] Furthermore, the explosion-reduction and energy-absorbing mechanism includes a plurality of explosion-reduction and energy-absorbing plates arranged side by side between the two cross bars.

[0009] Furthermore, a first installation step adapted to the explosion-reduction and energy-absorbing plate is provided in the length direction of the crossbar, and the explosion-reduction and energy-absorbing plate is embedded in the first installation step.

[0010] Furthermore, a second mounting step adapted to the mounting frame is provided in the length direction of the crossbar, and the mounting frame is embedded in the second mounting step.

[0011] Furthermore, four installation slots are provided on the installation frame, and the four fireproof and explosion-resistant composite panels are installed in the four installation slots in a one-to-one correspondence.

[0012] Furthermore, two limit blocks installed on the installation frame are provided on both sides of the installation slot, and the fireproof and explosion-resistant composite panel is located between the two limit blocks.

[0013] The assembly method of the assembled protection system includes the following steps:

[0014] Step 1: Prepare two crossbars, several installation frames, several limit frames, several fireproof and explosion-resistant composite panels, and several explosion-reducing and energy-absorbing panels;

[0015] Step 2: Install four limit stop frames on the front of one of the mounting frames, and make sure that the four limit stop frames correspond to the four mounting slots one by one, ensuring that there is a limit stop frame on one side of each mounting slot;

[0016] Step 3: Turn the mounting frame over so that the reverse side faces upwards, and install the four fireproof and explosion-resistant composite panels into the four mounting slots one by one;

[0017] Step 4: Based on step 3, install four limit stop frames on the back side of the installation frame, and make the four limit stop frames correspond to the four installation slots one by one, ensuring that there is a limit stop frame on the other side of each installation slot. In this way, the fireproof and explosion-resistant composite panel is embedded in the installation slot and fixed between the two limit stop frames on both sides of the installation slot;

[0018] Step 5: After completing step 4, the assembly board is obtained. Repeat steps 2-4 until several assembly boards are obtained.

[0019] Step 6: Install several assembly plates side by side between the two crossbars;

[0020] Step 7: Divide the prepared explosion-proof energy absorbing plate into two parts, and install one of the explosion-proof energy absorbing plates side by side between the two crossbars, and ensure that the explosion-proof energy absorbing plate is located on one side of the assembly plate;

[0021] Step 8: Install another explosion-proof energy-absorbing plate side by side between the two horizontal bars, and ensure that the explosion-proof energy-absorbing plate is located on the other side of the assembly plate. In this way, the assembly of the assembled protection system is completed.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention has a split structure, which is convenient for installation and disassembly; wherein, the fireproof and explosion-proof composite panel of the present invention is composed of an explosion-proof panel, a conventional fireproof panel and a flexible fireproof layer. Different from the existing converter station valve hall sealing system which does not protect the fireproof panel thereon, the present invention makes the explosion-proof energy absorption panel located outside the fireproof panel, and provides a composite fireproof and explosion-proof coating on the outer surface of the fireproof panel. Based on the synergistic effect of the composite fireproof and explosion-proof coating and the explosion-proof energy absorption panel, the fireproof panel structure is protected under the impact of the explosion, which increases the difficulty of the fireproof panel structure being broken under the impact of the explosion, and enhances the fireproof and explosion-proof capability of the assembled protection system as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the structure of the present invention.

[0025] Figure 2 Schematic diagram of fireproof and explosion-resistant composite panel.

[0026] Figure 3 This is a schematic diagram of a fireproof board.

[0027] Figure 4 Schematic diagram of the appearance of the structure of the present invention.

[0028] Figure 5 Schematic diagram of the assembly plates installed side by side between two crossbars.

[0029] Figure 6 Cross-section diagram of the crossbar.

[0030] Figure 7 Schematic diagram of the assembly board.

[0031] Figure 8 Schematic diagram of the limit stop frame.

[0032] Figure 9 Schematic diagram of the installation frame.

[0033] Figure 10 Schematic diagram of the cross section of the assembly board.

[0034] Figure 11 This is a schematic diagram of several structures of the present invention stacked and installed as a whole.

[0035] The names corresponding to the reference numerals are:

[0036] 1-cross bar, 2-assembly plate, 3-installation frame, 4-fireproof and explosion-resistant composite board, 5-explosion-resistant board, 6-fireproof board, 7-flexible fireproof layer, 8-composite fireproof and explosion-resistant coating, 9-explosion reduction and energy absorption board, 10-second installation step, 11-first installation step, 12-installation notch, 13-limiting frame. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; of course, they may also refer to mechanical connections or electrical connections; in addition, they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] The present invention provides a composite fireproof and explosion-resistant coating, which is formed by spraying and curing a polyurea fireproof coating. The polyurea fireproof coating consists of the following components in parts by weight: 26-28 parts of amino-terminated polytetrahydrofuran; 22-24 parts of hydrogenated phenylmethane diisocyanate; 18 parts of ammonium polyphosphate; 6-8 parts of dipentaerythritol; 7 parts of melamine; 12 parts of rutile titanium dioxide; 3-5 parts of aerogel slurry; 1-2 parts of γ-aminopropyltriethoxysilane; and 30-35 parts of deionized water.

[0041] like Figure 1-10As shown, the present invention provides an assembled protection system for a composite fireproof and explosion-resistant coating, comprising two mirror-distributed and mutually parallel cross bars 1, an assembly mechanism arranged between the two cross bars 1, and two explosion-reducing and energy-absorbing mechanisms arranged between the two cross bars 1 and on both sides of the assembly mechanism; the assembly mechanism comprises a plurality of assembly plates 2 arranged side by side between the two cross bars 1; the assembly plate 2 comprises a mounting frame 3 arranged between the two cross bars 1, and four fireproof and explosion-resistant composite panels 4 mounted on the mounting frame 3.

[0042] After the present invention is applied to the sealing of the valve hall of the ultra-high voltage converter station, any fireproof and explosion-resistant composite plate 4 on the installation frame 3 can be individually disassembled according to actual needs, and any assembly plate 2 between the two cross bars 1 can also be individually disassembled, which facilitates corresponding maintenance inside the valve hall sealing of the ultra-high voltage converter station.

[0043] When the present invention is actually used, it can be used in combination according to the size of the valve hall plugging system of the ultra-high voltage converter station. The specific method is: according to the size of the valve hall plugging system of the ultra-high voltage converter station, several structures of the present invention are stacked and installed as a whole (such as Figure 11 shown).

[0044] The present invention is suitable for blocking a portion in an ultra-high voltage converter station where no pipeline passes through.

[0045] The present invention has a split structure, which is convenient for installation and disassembly; wherein, the fireproof and explosion-proof composite panel of the present invention is composed of an explosion-proof panel, a conventional fireproof panel and a flexible fireproof layer. Different from the existing valve hall sealing system of the converter station, which does not protect the fireproof panel thereon, the present invention makes the explosion-proof energy absorption panel located outside the fireproof panel, and coats the composite fireproof and explosion-proof coating on the outer surface of the fireproof panel. Based on the synergistic effect of the composite fireproof and explosion-proof coating and the explosion-proof energy absorption panel, the fireproof panel structure is protected under the impact of the explosion, which increases the difficulty of the fireproof panel structure being broken under the impact of the explosion, and enhances the fireproof and explosion-proof capability of the assembled protection system as a whole.

[0046] The fireproof and explosion-proof composite panel 4 of the present invention includes an explosion-proof panel 5, two fireproof panels 6 arranged on both sides of the explosion-proof panel 5, and a flexible fireproof layer 7 arranged between the explosion-proof panel 5 and the fireproof panel 6; the composite fireproof and explosion-proof coating 8 is provided on the outer surface of the fireproof panel 6.

[0047] Flexible fireproof layer 7 can be made of mineral wool, rock wool, or glass wool. Composite fireproof and explosion-resistant coating 8 is formed by applying polyurea to the outer surface of fireproof board 6. Polyurea has unique potential in explosion resistance and impact resistance. Applying polyurea to the outer surface of fireproof board 6 can effectively enhance its fireproof and explosion-resistant capabilities.

[0048] The fireproof and explosion-proof composite panel of the present invention is composed of an explosion-proof panel, a conventional fireproof panel and a flexible fireproof layer. The explosion-proof panel, the conventional fireproof panel and the flexible fireproof layer work together to enhance the overall fireproof and explosion-proof capabilities of the fireproof and explosion-proof composite panel. At the same time, the composite fireproof and explosion-proof coating coated on the outer surface of the fireproof panel protects the structure of the fireproof panel while enhancing the overall structure of the fireproof and explosion-proof composite panel, thereby further improving the overall fireproof and explosion-proof capabilities of the fireproof and explosion-proof composite panel.

[0049] The explosion reduction and energy absorption mechanism includes a plurality of explosion reduction and energy absorption plates 9 arranged side by side between the two cross bars 1 .

[0050] The explosion-absorbing plate 9 is made of explosion-absorbing materials such as foam metal, ACF artificial cartilage material, rubber, etc. The explosion-absorbing plate 9 can buffer the impact energy in a combustion and explosion environment, reduce the impact energy transmitted to the fireproof plate 6, and enhance the overall fireproof and explosion-resistant capabilities of the present invention.

[0051] A first mounting step 11 adapted to the explosion-reduction and energy-absorbing plate 9 is provided in the length direction of the crossbar 1 , and the explosion-reduction and energy-absorbing plate 9 is embedded in the first mounting step 11 .

[0052] The first mounting step 11 and the explosion-reduction energy absorbing plate 9 are respectively provided with mutually compatible threaded holes. After the explosion-reduction energy absorbing plate 9 is embedded in the first mounting step 11, the explosion-reduction energy absorbing plate 9 can be fixedly embedded in the first mounting step 11 by screwing bolts into the two mutually compatible threaded holes, which is convenient for later disassembly.

[0053] A second mounting step 10 adapted to the mounting frame 3 is provided in the length direction of the crossbar 1 , and the mounting frame 3 is embedded in the second mounting step 10 .

[0054] The second mounting step 10 and the mounting frame 3 are respectively provided with threaded holes that adapt to each other. After the mounting frame 3 is embedded in the second mounting step 10, bolts are screwed into the two threaded holes that adapt to each other, so that the mounting frame 3 can be fixedly embedded in the second mounting step 10 and is convenient for later disassembly.

[0055] Four installation slots 12 are formed on the installation frame 3 , and the four fireproof and explosion-resistant composite panels 4 are installed in the four installation slots 12 in a one-to-one correspondence.

[0056] Two limit blocks 13 installed on the installation frame 3 are respectively provided on both sides of the installation slot 12 , and the fireproof and explosion-resistant composite panel 4 is located between the two limit blocks 13 .

[0057] The fireproof and explosion-resistant composite panel 4 is fixed between the two limit stop frames 13. The limit stop frames 13 and the mounting frame 3 are respectively provided with mutually compatible threaded holes. By screwing bolts into the mutually compatible threaded holes on the limit stop frames 13 and the mounting frame 3, the limit stop frames 13 can be fixedly mounted on the mounting frame 3, and it is convenient for later disassembly.

[0058] The assembly method of the assembled protective system of the present invention comprises the following steps:

[0059] Step 1: Prepare two crossbars, several installation frames, several limit frames, several fireproof and explosion-resistant composite panels, and several explosion-reducing and energy-absorbing panels;

[0060] Step 2: Install four limit stop frames on the front of one of the mounting frames, and make sure that the four limit stop frames correspond to the four mounting slots one by one, ensuring that there is a limit stop frame on one side of each mounting slot;

[0061] Step 3: Turn the mounting frame over so that the reverse side faces upwards, and install the four fireproof and explosion-resistant composite panels into the four mounting slots one by one;

[0062] Step 4: Based on step 3, install four limit stop frames on the back side of the installation frame, and make the four limit stop frames correspond to the four installation slots one by one, ensuring that there is a limit stop frame on the other side of each installation slot. In this way, the fireproof and explosion-resistant composite panel is embedded in the installation slot and fixed between the two limit stop frames on both sides of the installation slot;

[0063] Step 5: After completing step 4, the assembly board is obtained. Repeat steps 2-4 until several assembly boards are obtained.

[0064] Step 6: Install several assembly plates side by side between the two crossbars;

[0065] Step 7: Divide the prepared explosion-proof energy absorbing plate into two parts, and install one of the explosion-proof energy absorbing plates side by side between the two crossbars, and ensure that the explosion-proof energy absorbing plate is located on one side of the assembly plate;

[0066] Step 8: Install another explosion-proof energy-absorbing plate side by side between the two horizontal bars, and ensure that the explosion-proof energy-absorbing plate is located on the other side of the assembly plate. In this way, the assembly of the assembled protection system is completed.

[0067] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention and are intended to illustrate the technical solutions of the present invention, rather than limiting them, and certainly not limiting the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention. In other words, any changes or refinements made to the main design concept and spirit of the present invention that have no substantive significance, provided that the technical problems they solve are still consistent with those of the present invention, should be included in the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields should also be included in the patent protection scope of the present invention.

Claims

1. A composite fireproof and explosion-resistant coating, characterized in that: It is formed by spraying and curing the polyurea fire retardant coating, which is composed of the following components in parts by weight: Composition: 26-28 parts of amino-terminated polytetrahydrofuran; 22-24 parts of hydrogenated phenylmethane diisocyanate; 18 parts of ammonium polyphosphate; 6-8 parts of dipentaerythritol; 7 parts of melamine; 12 parts of rutile titanium dioxide; 3-5 parts of aerogel slurry; 1-2 parts of γ-aminopropyltriethoxysilane; and 30-35 parts of deionized water.

2. The assembled protection system of a composite fireproof and explosion-proof coating according to claim 1, characterized in that: The invention comprises two mirror-distributed and mutually parallel cross bars (1), an assembly mechanism arranged between the two cross bars (1), and two explosion-reducing and energy-absorbing mechanisms arranged between the two cross bars (1) and arranged on both sides of the assembly mechanism; the assembly mechanism comprises a plurality of assembly plates (2) arranged side by side between the two cross bars (1); the assembly plate (2) comprises a mounting frame (3) arranged between the two cross bars (1), and four fireproof and explosion-resistant composite plates (4) mounted on the mounting frame (3).

3. The assembled protection system of the composite fireproof and explosion-proof coating according to claim 2 is characterized in that: The fireproof and explosion-resistant composite panel (4) comprises an explosion-resistant panel (5), two fireproof panels (6) arranged on both sides of the explosion-resistant panel (5), and a flexible fireproof layer (7) arranged between the explosion-resistant panel (5) and the fireproof panel (6); the composite fireproof and explosion-resistant coating (8) is provided on the outer surface of the fireproof panel (6).

4. The assembled protection system of a composite fireproof and explosion-proof coating according to claim 2, characterized in that: The explosion reduction and energy absorption mechanism comprises a plurality of explosion reduction and energy absorption plates (9) arranged side by side between two cross bars (1).

5. The assembled protection system of the composite fireproof and explosion-proof coating according to claim 4 is characterized in that: A first mounting step (11) adapted to the explosion-reduction energy absorption plate (9) is provided in the length direction of the crossbar (1), and the explosion-reduction energy absorption plate (9) is embedded in the first mounting step (11).

6. The assembled protection system of the composite fireproof and explosion-proof coating according to claim 2, characterized in that: A second mounting step (10) adapted to the mounting frame (3) is provided in the length direction of the crossbar (1), and the mounting frame (3) is embedded in the second mounting step (10).

7. The assembled protection system of the composite fireproof and explosion-proof coating according to claim 2, characterized in that: Four installation slots (12) are provided on the installation frame (3), and the four fireproof and explosion-resistant composite panels (4) are installed in the four installation slots (12) in a one-to-one correspondence.

8. The assembled protection system of composite fireproof and explosion-proof coating according to claim 7, characterized in that: Two limit blocks (13) mounted on the mounting frame (3) are provided on both sides of the mounting notch (12), and the fireproof and explosion-resistant composite panel (4) is located between the two limit blocks (13).

9. An assembled protection system of a composite fireproof and explosion-resistant coating according to any one of claims 2 to 8, characterized in that: The assembly method of the assembled protection system includes the following steps: Step 1: Prepare two crossbars, several installation frames, several limit frames, several fireproof and explosion-resistant composite panels, and several explosion-reducing and energy-absorbing panels; Step 2: Install four limit stop frames on the front of one of the mounting frames, and make sure that the four limit stop frames correspond to the four mounting slots one by one, ensuring that there is a limit stop frame on one side of each mounting slot; Step 3: Turn the mounting frame over so that the reverse side faces upwards, and install the four fireproof and explosion-resistant composite panels into the four mounting slots one by one; Step 4: Based on step 3, install four limit stop frames on the back side of the installation frame, and make the four limit stop frames correspond to the four installation slots one by one, ensuring that there is a limit stop frame on the other side of each installation slot. In this way, the fireproof and explosion-resistant composite panel is embedded in the installation slot and fixed between the two limit stop frames on both sides of the installation slot; Step 5: After completing step 4, the assembly board is obtained. Repeat steps 2-4 until several assembly boards are obtained. Step 6: Install several assembly plates side by side between the two crossbars; Step 7: Divide the prepared explosion-proof energy absorbing plate into two parts, and install one of the explosion-proof energy absorbing plates side by side between the two crossbars, and ensure that the explosion-proof energy absorbing plate is located on one side of the assembly plate; Step 8: Install another explosion-proof energy-absorbing plate side by side between the two horizontal bars, and ensure that the explosion-proof energy-absorbing plate is located on the other side of the assembly plate. In this way, the assembly of the assembled protection system is completed.

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