CN210218832U - Special purpose fire-proof valve - Google Patents
Special purpose fire-proof valve Download PDFInfo
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- CN210218832U CN210218832U CN201920964710.4U CN201920964710U CN210218832U CN 210218832 U CN210218832 U CN 210218832U CN 201920964710 U CN201920964710 U CN 201920964710U CN 210218832 U CN210218832 U CN 210218832U
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- box body
- baffle
- assembly
- rotating shaft
- special purpose
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Abstract
The utility model discloses a special purpose fire prevention valve, include: a case assembly; the frame assembly is arranged on the outer surface of the box body assembly and is fixed on the inner wall of the air-conditioning air duct; the barrier strip is arranged on the inner wall of one end of the box body component in a surrounding way; the pivot subassembly includes: the rotating shaft is arranged on the box body assembly close to the barrier strip, and one end of the connecting plate is fixedly connected to the rotating shaft on the outer side of the box body assembly; the baffle is made of a mould heat insulation plate and arranged in the box body assembly, and one end of the baffle is fixedly connected with the rotating shaft; one end of the fusible piece is connected with the outer end of the connecting plate, and the other end of the fusible piece is connected to the frame component; and one end of the tension spring is connected with the outer end of the connecting plate, and the other end of the tension spring is connected to the outer surface of one end, far away from the barrier strip, of the frame assembly. The special-purpose fire damper can effectively prevent flame from entering, heat radiation from being transmitted and heat from being conducted, and can comprehensively guarantee the environmental safety of a protected area.
Description
Technical Field
The utility model relates to an air conditioner wind channel fire prevention technical field, concretely relates to special purpose fire prevention valve.
Background
In order to improve the fire safety of a protected area, a fire-proof valve is usually installed on a ventilation pipeline and an air-conditioning system air supply pipeline which are communicated with the protected area, the fire-proof valve is in an open state at ordinary times, when the temperature of gas in an air duct reaches a certain temperature (usually 70 ℃) in a fire disaster, an fusible piece is fused, the valve is automatically closed, the requirements on fire-proof stability and fire-proof integrity can be met within a certain time, and the smoke-isolating and fire-retarding effects are achieved. However, the existing fire damper adopts a metal structure, which can block the entrance of flame and smoke dust, but cannot block the transmission of thermal radiation and the conduction of heat, so that the environmental temperature of the protected area still exceeds the controllable range, and the protected area is adversely affected.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a special purpose fire prevention valve to effectively block the entering of flame, thermal radiation's transmission and thermal conduction, ensure the environmental safety of protected area comprehensively.
In order to achieve the above technical effects, the utility model discloses a technical scheme is:
a special purpose fire damper is arranged in an air-conditioning air duct, and comprises:
the box body assembly is a box body structure which is made of a mould heat insulation plate and is provided with openings at two ends;
the frame assembly is arranged on the outer surface of the box body assembly and is fixed on the inner wall of the air-conditioning air duct, so that openings at two ends of the box body assembly are communicated with the air-conditioning air duct;
the barrier strip is arranged on the inner wall of one end of the box body component in a surrounding manner;
the pivot subassembly includes: the rotating shaft is arranged on the box body assembly close to the barrier strip, the rotating shaft is matched with the box body assembly in a rotating mode, the outer end of the rotating shaft protrudes out of the outer surface of the box body assembly, one end of the connecting plate is fixedly connected to the rotating shaft on the outer side of the box body assembly, and the other end of the connecting plate extends outwards in a direction perpendicular to the axis of the rotating shaft;
the baffle is made of a mold heat insulation plate and arranged in the box body assembly, one end of the baffle is fixedly connected with the rotating shaft, the baffle is perpendicular to the connecting plate, and the baffle rotates around the rotating shaft to seal or open an opening formed by the surrounding of the barrier strips;
one end of the fusible piece is connected with the outer end of the connecting plate, and the other end of the fusible piece is connected to the frame assembly, so that the extending direction of the connecting plate is parallel to the radial direction of the box body assembly; and
and one end of the tension spring is connected with the outer end of the connecting plate, and the other end of the tension spring is connected to the outer surface of one end, far away from the barrier strip, of the frame assembly.
Preferably, the special purpose fire damper further comprises: the fireproof expansion sealing strip is annularly arranged on the outer peripheral surface of the baffle.
Preferably, the special purpose fire damper further comprises: a locking assembly, the locking assembly comprising: the fixed plate is made of ferromagnetic materials and fixed on the barrier strip on one side far away from the rotating shaft, and the magnet is fixed on the surface, far away from the rotating shaft, of the baffle and facing the barrier strip; when the baffle rotates to be close to the barrier strip, the magnet can be in contact with the fixed plate.
Preferably, the magnet is provided with a countersunk hole, and a countersunk bolt is arranged in the countersunk hole and connected with the baffle.
Preferably, the box body assembly is formed by assembling four mould heat insulation plates.
Preferably, the heat insulation plate of the mold resists temperature of not less than 1000 ℃.
Preferably, the rotating shaft assembly further includes: the fixing base, the fixing base sets up dorsad of baffle on the face of blend stop, and the fixing base is located being close to of baffle the tip of fusible piece, the axis of rotation passes through fixing base and baffle fixed connection.
Preferably, the rotating shaft is arranged into two sections corresponding to two opposite side walls of the box body assembly, the inner end of each section of the rotating shaft is fixedly connected with the fixed seat, and the outer end of the rotating shaft protrudes out of the outer surface of the box body assembly.
Preferably, the fusible piece has a fusing temperature of 70 ℃.
Compared with the prior art, the beneficial effects of the utility model are that:
under normal conditions, the baffle is in an open state, so that the air inlet and outlet requirements of the air duct are met; after the temperature in the air flue reaches the fusing temperature of the fusible piece when a fire disaster happens, the baffle is automatically closed, the air flue is blocked together with the box body component made of the mould heat insulation plate, the entering of flame and smoke dust is blocked in a protected area, meanwhile, the characteristics of high temperature resistance and low heat conductivity of the mould heat insulation plate are utilized, the heat radiation transmission and the heat conduction are greatly reduced, the heat entering the protected area through the air flue in the fire scene is effectively reduced, the protected area environment temperature is in a controllable range, and the environment safety of the protected area is more fully guaranteed.
Drawings
FIG. 1 is a schematic view of a half-section structure of the fire damper of the present invention in a front view direction;
FIG. 2 is an enlarged view of the structure of part A in FIG. 1;
fig. 3 is a schematic sectional view of the fire-proof valve of the present invention in a side view in an open state;
FIG. 4 is a schematic sectional view of the fire damper of the present invention in a downward direction when the fire damper is closed;
FIG. 5 is an enlarged view of the structure of part B in FIG. 4;
reference numerals:
1-a box body component, wherein,
2-the frame assembly is assembled by a frame,
3-a blocking strip is arranged at the upper part of the frame,
4-rotating shaft component, 41-rotating shaft, 42-connecting plate, 43-fixing seat,
5-a baffle plate is arranged on the upper surface of the shell,
6-an easily fusible sheet, wherein the easily fusible sheet is a fusible sheet,
7-a tension spring is arranged at the lower part of the frame,
8-the fireproof expansion sealing strip is adopted,
9-locking component, 91-fixing plate, 92-magnet and 93-countersunk head bolt.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or structures must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.
As shown in fig. 1 to 5, the special-purpose fire damper provided in this embodiment is disposed in an air-conditioning duct, and in case of fire, closes the air-conditioning duct to block the entrance of flame, the transmission of thermal radiation, and the conduction of heat, so as to effectively protect a protected area, and its main structure includes: the box component 1, the frame component 2, the barrier strip 3, the rotating shaft component 4, the baffle 5, the fusible piece 6 and the tension spring 7.
Referring to fig. 1, a box body assembly 1 is a box body structure made of mold heat insulation plates and with openings at two ends, and specifically, four mold heat insulation plates can be assembled and fixed by means of bolts and the like between the plates to form a square box with openings at two ends. The mold heat insulation plate has the temperature resistance of not less than 1000 ℃, the heat conductivity coefficient of 0.12W/(m.K), the characteristics of high temperature resistance and low heat conductivity, and can effectively reduce the heat radiation transmission and the heat conduction.
The box body assembly 1 is fixed to the inner wall of an air conditioner air duct through the frame assembly 2, referring to fig. 1, the frame assembly 2 can adopt a conventional metal frame structure, the frame assembly 2 is arranged on the outer surface of the box body assembly 1 through connecting modes such as bolts, the box body assembly 1 can be effectively fixed, or the assembly of four mould heat insulation boards to the box body assembly 1 can be directly completed through the frame assembly 2, and the structure is compact and practical. Frame subassembly 2 makes the both ends opening and the air conditioner wind channel intercommunication of box subassembly 1 after fixing box subassembly 1 to the inner wall in air conditioner wind channel through connection methods such as bolt equally, simultaneously, the gap between box subassembly 1 and the air conditioner wind channel inner wall also is sealed by frame subassembly 2, makes the air current can only pass through in the cavity of box subassembly 1.
A baffle 5 is arranged in the cavity of the box body component 1, so that the cavity channel of the box body component 1 is opened or closed through the baffle 5; the baffle 5 is made of a mould heat insulation plate made of the same material as the box body component 1, and the baffle and the mould heat insulation plate are matched to realize smoke insulation and heat insulation of the air duct.
Specifically, referring to fig. 1 and 3, a barrier strip 3 is circumferentially arranged on the inner wall of one end of the box assembly 1 to form a structure with a step pore passage in the cavity of the box assembly 1, and when the baffle 5 seals the pore passage of the box assembly 1, the surface of the baffle 5 close to the circumferential edge is tightly attached to the side surface of the barrier strip 3, so that a more ideal sealing effect is achieved.
The baffle 5 is connected to the case assembly 1 through the rotary shaft assembly 4, as shown in fig. 1, 2 and 3, the rotary shaft assembly 4 includes: the rotating shaft 41 is arranged on the box body component 1 close to the barrier strip 3, the rotating shaft 41 is matched with the box body component 1 in a rotating mode, the outer end of the rotating shaft 41 protrudes out of the outer surface of the box body component 1, one end of the connecting plate 42 is fixedly connected to the rotating shaft 41 on the outer side of the box body component 1, and the other end of the connecting plate 42 extends outwards in a direction perpendicular to the axis of the rotating shaft 41; one end of the baffle 5 is fixedly connected with the rotating shaft 41, the baffle 5 is perpendicular to the connecting plate 42, and the baffle 5 rotates around the rotating shaft 41 to block or open an opening formed by the barrier strips 3.
Referring to fig. 2, the rotary shaft assembly 4 in the present embodiment further includes: fixing base 43, fixing base 43 set up on the face of baffle 5 that backs to blend stop 3, and fixing base 43 is located the tip that is close to fusible piece 6 of baffle 5, and axis of rotation 41 passes through fixing base 43 and baffle 5 fixed connection. Moreover, the rotating shafts 41 may be arranged into two sections corresponding to two opposite side walls of the box assembly 1, the inner end of each section of the rotating shaft 41 is fixedly connected with the fixing seat 43, or the fixing seats 43 are also arranged corresponding to two side portions of the baffle 5, and the two rotating shafts 41 are connected corresponding to the fixing seats 43 on the same side; the outer end of the rotating shaft 41 is protruded to the outer surface of the case assembly 1 and fixedly connected to the corresponding connecting plate 42.
The opening and closing state of the baffle 5 is switched by the matching of the fusible piece 6 and the tension spring 7, referring to fig. 3 and 4, one end of the fusible piece 6 is connected with the outer end of the connecting plate 42, and the other end is connected to the frame component 2, so that the extending direction of the connecting plate 42 is parallel to the radial direction of the box body component 1; the fusible piece 6 is 70 deg.C fusible piece commonly used in air-conditioning fireproof engineering, i.e. fusible piece with fusing temperature of 70 deg.C. The tension spring 7 is connected at one end to the outer end of the connecting plate 42 and at the other end to the outer surface of the frame assembly 2 remote from the end of the bar 3.
Thus, under the normal condition that no fire occurs, referring to fig. 3, the fusible pieces 6 are in the normal working state, the connecting plates 42 are connected and fixed to the frame assembly 2, the free ends of the baffles 5 are close to the side wall of the box assembly 1 close to the rotating shaft 41, the channel of the box assembly 1 is opened, and the normal air inlet and outlet requirements of the air conditioner are ensured. When a fire breaks out and the temperature of the air flow in the air duct reaches 70 ℃, referring to fig. 4, the fusible piece 6 is fused, the connecting plate 42 rotates under the action of the tension 7 spring, and drives the rotating shaft 41 and the baffle 5 connected with the rotating shaft to rotate until the baffle 5 is tightly attached to the side surface of the barrier strip 3, so that the air duct is blocked.
In this embodiment, for the effect of improvement to the wind channel shutoff, still be the cyclic annular on the outer peripheral face of baffle 5 and be equipped with fire prevention inflation sealing strip 8, but the expandable graphite sealing strip of china chengchang chemical industry preparation, it can expand to 3 times of former volume rapidly when the temperature more than 200 ℃, carries out complete packing with the gap, effectively prevents stretching of conflagration, reduces the heat transfer in gap. Fireproof expansion sealing strip 8
Meanwhile, in order to further ensure the tightness of the fitting of the baffle 5 and the barrier strip 3, the locking assembly 9 is further arranged for the baffle 5 in the embodiment. Referring to fig. 5, the locking assembly 9 includes a fixing plate 91 and a magnet 92, the fixing plate 91 is made of ferromagnetic material and is fixed on the barrier strip 3 at the side far from the rotating shaft 41; the magnet 92 is fixed on the surface of the baffle 5 far away from the rotating shaft 41 and facing the barrier strip 3, and specifically, a countersunk hole may be formed in the magnet 92, and a countersunk bolt 93 is inserted into the countersunk hole and fixedly connected to the baffle 5. Further, when the baffle 5 rotates to approach the barrier strip 3, the magnet 92 can contact with the fixing plate 91, so that the baffle 5 is fixed on the fixing plate 91 in an adsorption manner, and the fitting force of the baffle 5 and the barrier strip 3 is increased.
By adopting the special-purpose fire-proof valve in the technical scheme, the baffle 5 is in an open state under normal conditions, so that the air inlet and outlet requirements of the air duct are met; after the temperature in the air flue reaches the fusing temperature of the fusible pieces 6 when a fire disaster happens, the baffle 5 is automatically closed, the air flue is blocked together with the box body component 1 made of the mould heat insulation plate, the entering protected area of flame and smoke dust is blocked, meanwhile, the characteristics of high temperature resistance and low heat conductivity of the mould heat insulation plate are utilized, the heat radiation transmission and heat conduction are greatly reduced, the heat entering the protected area through the air flue in the fire scene is effectively reduced, the protected area environment temperature is in a controllable range, and the environment safety of the protected area is more fully guaranteed.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (9)
1. The utility model provides a special purpose fire prevention valve, sets up in the air conditioner wind channel which characterized in that includes:
the box body assembly is a box body structure which is made of a mould heat insulation plate and is provided with openings at two ends;
the frame assembly is arranged on the outer surface of the box body assembly and is fixed on the inner wall of the air-conditioning air duct, so that openings at two ends of the box body assembly are communicated with the air-conditioning air duct;
the barrier strip is arranged on the inner wall of one end of the box body component in a surrounding manner;
the pivot subassembly includes: the rotating shaft is arranged on the box body assembly close to the barrier strip, the rotating shaft is matched with the box body assembly in a rotating mode, the outer end of the rotating shaft protrudes out of the outer surface of the box body assembly, one end of the connecting plate is fixedly connected to the rotating shaft on the outer side of the box body assembly, and the other end of the connecting plate extends outwards in a direction perpendicular to the axis of the rotating shaft;
the baffle is made of a mold heat insulation plate and arranged in the box body assembly, one end of the baffle is fixedly connected with the rotating shaft, the baffle is perpendicular to the connecting plate, and the baffle rotates around the rotating shaft to seal or open an opening formed by the surrounding of the barrier strips;
one end of the fusible piece is connected with the outer end of the connecting plate, and the other end of the fusible piece is connected to the frame assembly, so that the extending direction of the connecting plate is parallel to the radial direction of the box body assembly; and
and one end of the tension spring is connected with the outer end of the connecting plate, and the other end of the tension spring is connected to the outer surface of one end, far away from the barrier strip, of the frame assembly.
2. A special purpose fire damper as in claim 1 further comprising: the fireproof expansion sealing strip is annularly arranged on the outer peripheral surface of the baffle.
3. A special purpose fire damper as in claim 1 further comprising: a locking assembly, the locking assembly comprising: the fixed plate is made of ferromagnetic materials and fixed on the barrier strip on one side far away from the rotating shaft, and the magnet is fixed on the surface, far away from the rotating shaft, of the baffle and facing the barrier strip; when the baffle rotates to be close to the barrier strip, the magnet can be in contact with the fixed plate.
4. A special purpose fire damper as in claim 3 wherein said magnet is countersunk and a countersunk bolt is disposed in said countersunk and is connected to said flapper.
5. A special purpose fire damper as in claim 1 wherein said box assembly is assembled from four mold insulation panels.
6. A special purpose fire damper according to claim 1 or 5, wherein said mould insulation panel is temperature resistant of not less than 1000 ℃.
7. A special purpose fire damper as in claim 1, wherein said spool assembly further comprises: the fixing base, the fixing base sets up dorsad of baffle on the face of blend stop, and the fixing base is located being close to of baffle the tip of fusible piece, the axis of rotation passes through fixing base and baffle fixed connection.
8. A special purpose fire damper according to claim 7, wherein said rotatable shaft is provided in two sections corresponding to opposite side walls of the housing assembly, an inner end of each section of said rotatable shaft is fixedly connected to said retaining bracket, and an outer end of the rotatable shaft protrudes to an outer surface of the housing assembly.
9. A special purpose fire damper according to claim 1, wherein said fusible link has a fusing temperature of 70 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964710.4U CN210218832U (en) | 2019-06-25 | 2019-06-25 | Special purpose fire-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964710.4U CN210218832U (en) | 2019-06-25 | 2019-06-25 | Special purpose fire-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218832U true CN210218832U (en) | 2020-03-31 |
Family
ID=69933935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920964710.4U Active CN210218832U (en) | 2019-06-25 | 2019-06-25 | Special purpose fire-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218832U (en) |
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2019
- 2019-06-25 CN CN201920964710.4U patent/CN210218832U/en active Active
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