Fireproof window of clean room

Abstract

The utility model relates to a clean room fireproof window which comprises counter-fire side glass, fireproof glass, back-fire side glass and a steel keel, the fireproof glass is located between the counter-fire side glass and the back-fire side glass, and the steel keel comprises a Chinese character'zhong '-shaped groove, a rectangular pipe, a square pipe and a pressing block. The rectangular tube is arranged between the counter-fire surface glass and the middle glass; the Chinese character'zhong 'piece groove transversely abuts against the side end of the middle glass; one side of the pressing block abuts against the back-to-fire side glass, and a gap is formed between the other side of the pressing block and the Chinese character'zhong 'piece groove. The gap is filled with second sealant. And a third sealant is filled between the pressing block and the unexposed surface glass, so that the second sealant and the third sealant are separated by the pressing block. Compared with an existing clean room fireproof window with three pieces of glass and two cavities, the clean room fireproof window with the three pieces of glass and the two cavities is easier to manufacture, the third sealant is protected against heat through the heat insulation effect of the second sealant and the pressing block, high temperature is isolated, and the situation that tempered glass on the back fire face falls off due to high-temperature melting is avoided.

Description

Technical Field

[0001] This utility model relates to a cleanroom window, specifically a fireproof cleanroom window, and belongs to the field of fireproof window technology. Background Technology

[0002] Fireproof doors and windows for cleanrooms must meet the requirements of fire prevention and heat insulation, as well as the function of dust prevention. The existing fireproof windows for cleanrooms that use "triple glass and two cavities" are relatively complicated to manufacture, and the sealant between the central groove and the unexposed glass may melt at high temperatures, which may lead to the risk of the unexposed glass falling off.

[0003] Existing technology reference: Publication number CN214145282U, publication date 2021.09.07, "Fireproof windows for clean rooms". Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof and heat-insulating window for clean rooms. By designing the overall structure of the fire-facing glass and the central groove, the central groove is ensured to be centered. This makes it easier for the second sealant in the middle cavity to melt and release pressure, while isolating the high temperature of the third sealant that is in direct contact with the un-fired surface, thereby avoiding the problem of the un-fired glass falling off due to the melting of the sealant.

[0005] The present invention adopts the following technical solution:

[0006] A fireproof window for a cleanroom includes a fire-facing glass panel, a fireproof glass panel, an unfired glass panel, and a steel frame. The fireproof glass panel 11 is located between the fire-facing and unfired glass panels. The steel frame includes a central groove 3, a rectangular tube 8, a square tube 6, and a pressure block 4. The rectangular tube 8 is positioned between the fire-facing glass panel and the central glass panel. The central groove 3 laterally abuts against the side end of the central glass panel. One side of the pressure block 4 abuts against the unfired glass panel, and the other side forms a gap with the central groove 3. A second sealant A2 is filled in the gap. A third sealant A3 is filled between the pressure block 4 and the unfired glass panel, thereby separating the second sealant A2 and the third sealant A3. The second sealant 2 provides a seal under normal conditions but melts and releases pressure at high temperatures without affecting the third sealant A3.

[0007] Preferably, there is a heat insulation pad between the square tube 6 and the center slot 3 and the fireproof glass 11, and a fireproof plate 5 is set between the square tube 6 and the pressure block 4, so that the high temperature cannot be conducted to the pressure block 4, thereby ensuring that the third sealant A3 will not melt due to high temperature and cause the glass on the unexposed side to fall off.

[0008] Preferably, the interior of the Chinese character slot 3, and the space enclosed by the Chinese character slot 3, the rectangular tube 8, the fireproof glass 11, and the square tube 6 are each provided with a fireproof expansion seal 2.

[0009] Preferably, heat insulation pads are provided between the square tube 6 and the center section 3, and between the square tube 6 and the fireproof glass 11.

[0010] Furthermore, the heat insulation pad is a fireproof cotton strip 7.

[0011] Preferably, the pressure block 4 has a first plane that abuts against the inner side of the unexposed glass, and a butyl rubber 1 is provided between the first plane and the unexposed glass; a butyl rubber 1 is also provided between the rectangular tube and the inner side of the fire-facing glass.

[0012] Furthermore, the pressure block 3 also has a second plane perpendicular to the first plane, and a decorative strip 9 is attached to the outside of the second plane.

[0013] Preferably, both the fire-facing glass and the unfacing glass are 5mm thick tempered glass 10; the fireproof glass 11 is 6mm thick.

[0014] Furthermore, the pressure block 4 is fixed to the square tube 6 by screws 12, which also pass through the fireproof board 5.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1) Compared with the existing "three-glass two-cavity" fireproof windows for clean rooms, it is simpler to manufacture and the heat insulation effect of the second sealant and the pressure block can protect the third sealant from heat and isolate it from high temperature (to prevent the tempered glass on the unexposed side from falling off due to high temperature melting).

[0017] 2) The second sealant melts at high temperatures, which can relieve pressure and thus provide pressure protection for the third sealant. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the fireproof window for cleanrooms according to this utility model.

[0019] In the diagram, 1. Butyl rubber, 2. Fire-resistant expansion sealant, 3. Center groove, 4. Pressure block, 5. Fireproof board, 6. Square tube, 7. Fireproof cotton strip, 8. Rectangular tube (with built-in desiccant), 9. Decorative strip, 10. 5mm tempered glass, 11. 6mm fireproof glass, 12. Screw, A1. First sealant, A2. Second sealant, A3. Third sealant. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] See Figure 1 , Figure 1 The upper side is the fire-facing side, and the lower side is the fire-avoiding side.

[0022] Fire-resistant glass principle:

[0023] The first piece of glass shattered and fell off under high temperature conditions, but the second piece of fireproof glass was fixed to the rectangular tube 8 and would not shatter or fall off.

[0024] The interior of the central groove 3, as well as the space enclosed by the central groove 3, rectangular tube 8, fireproof glass 11, and square tube 6, are each equipped with fireproof expansion seals 2. These seals expand under high temperatures, sealing the gaps and preventing smoke and fire from penetrating the fireproof glass barrier.

[0025] There is a heat insulation pad (fireproof cotton strip 7) between the square tube 6 and the center slot 3 / fireproof glass 11 to reduce high temperature conduction. A fireproof plate 5 is set between the square tube 6 and the pressure block 4 so that the high temperature cannot be conducted to the pressure block 4, ensuring that the third sealant A3 will not melt due to high temperature and cause the innermost glass to fall off.

[0026] To ensure the cavity is airtight (otherwise, the glass inside will fog up under temperature differences), a second sealant A2 is used to seal the cavity. When the center groove 3 generates high temperature, the second sealant A2 will melt, but the third sealant A3 will not melt. At this time, the cavity loses its airtightness, preventing the high temperature and pressure from rupturing the third sealant A3 and causing the glass on the unexposed side to fall off.

[0027] See details Figure 1 A fireproof window for a cleanroom includes a fire-facing glass, a fireproof glass, an unfired glass, and a steel frame. The fireproof glass 11 is located between the fire-facing glass and the unfired glass. The steel frame includes a central groove 3, a rectangular tube 8, a square tube 6, and a pressure block 4. The rectangular tube 8 is located between the fire-facing glass and the central glass. The central groove 3 laterally abuts against the side end of the central glass. One side of the pressure block 4 abuts against the unfired glass, and the other side forms a gap with the central groove 3. The gap is filled with a second sealant A2. A third sealant A3 is filled between the pressure block 4 and the unfired glass, thereby separating the second sealant A2 and the third sealant A3.

[0028] In this embodiment, the pressure block 4 has a first plane that abuts against the inner side of the unexposed glass, and a butyl rubber 1 is provided between the first plane and the unexposed glass; a butyl rubber 1 is also provided between the rectangular tube and the inner side of the fire-facing glass.

[0029] In this embodiment, the pressure block 3 also has a second plane perpendicular to the first plane, and a decorative strip 9 is attached to the outside of the second plane.

[0030] In this embodiment, both the fire-facing glass and the unfacing glass are 5mm thick tempered glass 10; the fireproof glass 11 is 6mm thick.

[0031] See Figure 1The pressure block 4 is fixed to the square tube 6 by screws 12 (through the fireproof board 5).

[0032] Compared to existing "triple-glazed, two-cavity" fireproof windows for clean rooms, this invention is simpler to manufacture. It also achieves heat protection for the third sealant through the heat insulation effect of the second sealant and the pressure block, thus isolating it from high temperatures (preventing the tempered glass on the unexposed side from melting and falling off). At the same time, the melting of the second sealant at high temperatures can relieve pressure, thereby providing pressure protection for the third sealant.

[0033] The previous patent focused on a triple-glass, two-cavity design, but its fabrication was complex, and the sealant at point 3 lacked reliable protection. The innovation of this patent lies in protecting the sealant at point 3, and the fact that sealant 2 melts at high temperatures to provide pressure relief. Furthermore, the fabrication process is simpler than the previous patent.

[0034] The above are preferred embodiments of the present utility model. Those skilled in the art can make their own modifications or improvements based on this. Without departing from the overall concept of the present utility model, these modifications or improvements should all fall within the scope of protection claimed by the present utility model.

Claims

1. A fireproof window for a cleanroom, comprising a fire-facing glass, a fireproof glass, a fire-resistant glass, and a steel frame, wherein the fireproof glass (11) is located between the fire-facing glass and the fire-resistant glass, characterized in that: The steel keel includes a central groove (3), a rectangular tube (8), a square tube (6), and a pressure block (4); The rectangular tube (8) is located between the fire-facing glass and the middle glass; the groove of the middle part (3) is laterally abutted against the side end of the middle glass; The pressure block (4) forms a gap between one side of the back-fired glass and the other side of the center piece groove (3), and the gap is filled with the second sealant (A2). The pressure block (4) is filled with a third sealant (A3) between itself and the back-facing glass, thereby separating the second sealant (A2) and the third sealant (A3).

2. The fireproof window for cleanrooms as described in claim 1, characterized in that: There is a heat insulation pad between the square tube (6) and the center slot (3) and the fireproof glass (11). A fireproof board (5) is installed between the square tube (6) and the pressure block (4) so ​​that the high temperature cannot be conducted to the pressure block (4), thereby ensuring that the third sealant (A3) will not melt due to high temperature and cause the glass on the back side to fall off.

3. The fireproof window for cleanrooms as described in claim 1, characterized in that: Fireproof expansion seals (2) are provided inside the Chinese character slot (3) and the space enclosed by the Chinese character slot (3), rectangular tube (8), fireproof glass (11), and square tube (6).

4. The fireproof window for cleanrooms as described in claim 1, characterized in that: Heat insulation pads are installed between the square tube (6) and the center slot (3), and between the square tube (6) and the fireproof glass (11).

5. The fireproof window for cleanrooms as described in claim 4, characterized in that: The heat insulation pad is a fireproof cotton strip (7).

6. The fireproof window for cleanrooms as described in claim 1, characterized in that: The pressure block (4) has a first plane that abuts against the inner side of the unexposed glass, and a butyl rubber (1) is provided between the first plane and the unexposed glass; a butyl rubber (1) is also provided between the rectangular tube and the inner side of the fire-facing glass.

7. The fireproof window for cleanrooms as described in claim 6, characterized in that: The pressure block (4) also has a second plane perpendicular to the first plane, and a decorative strip (9) is attached to the outside of the second plane.

8. The fireproof window for cleanrooms as described in claim 1, characterized in that: Both the fire-facing glass and the un-fire-facing glass are 5mm thick tempered glass (10); the fireproof glass (11) is 6mm thick.

9. The fireproof window for cleanrooms as described in claim 2, characterized in that: The pressure block (4) is fixed to the square tube (6) by screws (12), which also pass through the fireproof board (5).

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