CN102788180A - Locking device in fire damper - Google Patents
Locking device in fire damper Download PDFInfo
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- CN102788180A CN102788180A CN2012102389833A CN201210238983A CN102788180A CN 102788180 A CN102788180 A CN 102788180A CN 2012102389833 A CN2012102389833 A CN 2012102389833A CN 201210238983 A CN201210238983 A CN 201210238983A CN 102788180 A CN102788180 A CN 102788180A
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- fire
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- actuator
- locking device
- temperature sensor
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Abstract
A locking device in a fire damper comprises a fan-shaped lockhole plate, an actuating mechanism and a spindle of the actuating mechanism, wherein one end of the spindle of the actuating mechanism is inserted into a damper body; the fan-shaped lockhole plate and the actuating mechanism are arranged at the other end of the spindle of the actuating mechanism; a through hole is formed in the fan-shaped lockhole plate; a secondary temperature sensor is arranged on the same side as the actuating mechanism; one end of the secondary temperature sensor is arranged in the damper body; a latch in the other end of the secondary temperature sensor corresponds to the through hole formed in the fan-shaped lockhole plate; a step is arranged on the latch; a cylindrical spiral compression spring is arranged on an outer ring at the left end of the step and arranged in an inner cavity defined by a nut, a fusible plug fixing seat and a casing; and the protruding end of the latch is connected with a fusible sheet. With the adoption of the locking device, when fire happens, after the fire damper is off, a secondary temperature controller acts to lock blades of the fire damper timely when the air pipe temperature reaches a set value, so as to exert the effects of completely resisting smoke and fire. The locking device is widely applicable to nuclear power engineering and domestic and overseas construction projects with high requirements on fire resistance and smoke prevention.
Description
Technical field:
The present invention relates to the fire-closing valve that uses in a kind of constructure ventilation air conditioning wind pipe, particularly relate to the locking device in the fire-closing valve.
Background technique:
At present domestic fire-closing valve temperature reach 70 ℃ close after, air temperature continues to raise in the air channel, transmission paries such as fire-closing valve blade and connecting rod at high temperature can produce bigger stress deformation.The distortion of some blades can be passed through connecting rod again through its axle; Pass to fire-closing valve the main shaft of actuator is installed; Force main shaft to rotate, and the rotation of main shaft, because of the effect of kinematic link; Cause between all blades, between blade and the barge board and produce bigger slit between blade tip and the sharf supporting frame, thereby make fire-closing valve lose the effect of separated cigarette back-fire relief.The above is those skilled in the art's problem demanding prompt solutions.
Summary of the invention:
The object of the invention is exactly the locking device that will provide in a kind of fire-closing valve, and it can overcome the above problem that existing fire-closing valve exists.The objective of the invention is to realize like this, the locking device in the fire-closing valve comprises it is characterized in that the main shaft of fan-shaped selvage, actuator, actuator; Main shaft one end of actuator is inserted in the valve body, and the other end is disposed with back-up ring, fan-shaped selvage, actuator from left to right outside valve body; Described fan-shaped selvage is provided with a through hole; With actuator's homonymy, be provided with the secondary temperature sensor; Described secondary temperature sensor is made up of fuse sheet, lock bolt, cylindroid helicalcoil compression spring, sleeve pipe, fusible plug fixed base, installation nut; One end of secondary temperature sensor is arranged in the valve body, and the through hole that is provided with on the lock bolt in the other end and the fan-shaped selvage is corresponding; Described lock bolt is provided with step, and the left end outer ring of step is provided with cylindroid helicalcoil compression spring, and is arranged in the inner chamber of nut, fusible plug fixed base, sleeve pipe formation, and the external part on the lock bolt connects with fuse sheet; The other end of described fuse sheet connects with strut on being fixed on sleeve pipe.Simple and direct effective the solution after the breaking out of fire fire-closing valve is closed of the present invention; When the airduct temperature reaches setting value; Temp controller action in the locking device; In time locking fire-closing valve blade makes the slit between any two parts of fire-closing valve be no more than setting value all the time, plays the effect of fully separated cigarette back-fire relief.Adaptable across nuclear power engineering and domestic and international construction project that the fire-resistant Smoke prevention class requirement of high standard is arranged.
Description of drawings:
Fig. 1 is a mounting structure schematic representation of the present invention;
Fig. 2 is that Fig. 1 A is to view;
Fig. 3 is Fig. 2 B-B direction sectional view;
Fig. 4 is a secondary temperature sensor of the present invention;
Fig. 5 is the fan-shaped selvage of the present invention.
1. valve body, 2. secondary temperature sensor, 3. fan-shaped selvage, 4. actuator, the 5. main shaft of actuator, 6. fuse sheet, 7. lock bolt, 8. cylindroid helicalcoil compression spring, 9. sleeve pipe, 10. fusible plug fixed base, 11. nuts.
Embodiment: the present invention is described further below in conjunction with accompanying drawing;
Locking device in the fire-closing valve comprises it is characterized in that the main shaft 5 of fan-shaped selvage 3, actuator 4, actuator; Main shaft 5 one ends of actuator are inserted in the valve body 1, and the other end is disposed with back-up ring, fan-shaped selvage 3, actuator 4 from left to right outside valve body 1; Described fan-shaped selvage is provided with a through hole; With actuator's 4 homonymies, be provided with secondary temperature sensor 2; Described secondary temperature sensor 2 is made up of fuse sheet 6, lock bolt 7, cylindroid helicalcoil compression spring 8, sleeve pipe 9, fusible plug fixed base 10,11 on nut of installation; One end of secondary temperature sensor 2 is arranged in the valve body 1, and the through hole that is provided with on the lock bolt 7 in the other end and the fan-shaped selvage 3 is corresponding; Described lock bolt 7 is provided with step, and the left end outer ring of step is provided with cylindroid helicalcoil compression spring 8, and is arranged in the inner chamber of nut 11, fusible plug fixed base 10, sleeve pipe 9 formation, and the external part on the lock bolt 7 connects with fuse sheet 6; The other end of described fuse sheet 6 connects with strut on being fixed on sleeve pipe 9.During practical implementation, actuator's homonymy is installed, a secondary temperature sensor is installed at fire-closing valve; The secondary temperature sensor by fuse sheet 6 fusing-off temperatures by 100 ℃, lock bolt 7, cylindroid helicalcoil compression spring 8, sleeve pipe 9, fusible plug fixed base 10, nut 11 be installed formed; On the main shaft that actuator is installed, fixing fan-shaped selvage; Fan-shaped selvage is provided with a hole.
The working principle of fire-closing valve locking device is:
Work as breaking out of fire, when air temperature reaches 70 ℃ in the air channel, actuator's action; With the fixing fan-shaped selvage of the main shaft of actuator; Main shaft with actuator rotates, when fire-closing valve fully at closing time, the through hole on the fan-shaped selvage faces the lock bolt of secondary temperature sensor.
Air temperature continues to raise in the air channel; When reaching 100 ℃; Fuse sheet 6 fusing in the secondary temperature sensor, cylindroid helicalcoil compression spring 8 spring forces discharge, and lock bolt 7 is under the spring force of cylindroid helicalcoil compression spring drives; Stretch out fusible plug fixed base 10 along sleeve pipe 9, just inject in the through hole of fan-shaped selvage 3.
Because fan-shaped selvage is fixed on the main shaft, when fire-closing valve at high temperature, during some deformable blades; Attempt again through connecting rod, to pass to the main shaft that fire-closing valve is installed actuator through its axle; Force the main shaft of actuator to rotate; At this moment because of the insertion of the through hole on the fan-shaped selvage, the main shaft of actuator can't be rotated, thereby solved because the rotation of the main shaft of actuator owing to lock bolt; Cause between all blades, between blade and the barge board and produce big gap problem between blade tip and the sharf supporting frame, thereby guaranteed that fire-closing valve plays fully the effect at a distance from the cigarette back-fire relief.
4). fire-closing valve reset and the replacing of secondary temperature sensor is installed:
A. actuator 4 is extracted out from the main shaft 5 of actuator;
B. the main shaft 5 of fan-shaped selvage 3 from actuator taken off;
C. secondary temperature sensor 2 is extracted out from valve body 1 housing;
D. pull down the fuse sheet 6 of inefficacy, the fuse sheet that more renews;
E. mounted secondary temperature sensor 2 is inserted valve body 1 housing original position;
F. fan-shaped selvage 3 is fixed on the main shaft 5 of actuator;
G. actuator 4 is fixed on the main shaft 5 of the actuator on valve body 1 housing.
Fire-closing valve is opening state at ordinary times.Work as breaking out of fire, when air temperature reached 70 ℃ in the air channel, fire-closing valve was closed.The control mode that fire-closing valve is closed has 3 kinds: 1) temp controller control is closed automatically; 2) manually control is closed; 3) electronic control is closed.
The fire-closing valve of supporting this device send the American insurance merchant to test institute (UL) test, and all items is qualified.In the time is 3 hours, and refractory temperature is controlled at during 1052 ± 5 ℃ of checkings, receives the slit between what two parts of trial to be no more than 19.1mm, is no more than 25.4mm behind the water spray.
Claims (3)
1. the locking device in the fire-closing valve comprises it is characterized in that the main shaft (5) of fan-shaped selvage (3), actuator (4), actuator; Main shaft (5) one ends of actuator are inserted in the valve body (1), and the other end is disposed with back-up ring, fan-shaped selvage (3), actuator (4) from left to right outside valve body (1); With actuator (4) homonymy, be provided with secondary temperature sensor (2); Described secondary temperature sensor (2) is made up of fuse sheet (6), lock bolt (7), cylindroid helicalcoil compression spring (8), sleeve pipe (9), fusible plug fixed base (10), installation nut (11).
2. the locking device in the fire-closing valve according to claim 1 is characterized in that: described fan-shaped selvage (3) is provided with a through hole; One end of secondary temperature sensor (2) is arranged in the valve body (1), and the lock bolt in the other end (7) is corresponding with the through hole that fan-shaped selvage (3) is gone up setting.
3. according to the locking device in claim 1, the 2 described fire-closing valves; It is characterized in that: described lock bolt (7) is provided with step; The left end outer ring of step is provided with cylindroid helicalcoil compression spring (8); And be arranged in the inner chamber of nut (11), fusible plug fixed base (10), sleeve pipe (9) formation, the external part on the lock bolt (7) connects with fuse sheet (6); Described fuse sheet 6) the other end connects with strut on being fixed on sleeve pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102389833A CN102788180A (en) | 2012-07-11 | 2012-07-11 | Locking device in fire damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102389833A CN102788180A (en) | 2012-07-11 | 2012-07-11 | Locking device in fire damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102788180A true CN102788180A (en) | 2012-11-21 |
Family
ID=47153681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102389833A Pending CN102788180A (en) | 2012-07-11 | 2012-07-11 | Locking device in fire damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788180A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218421A (en) * | 2017-07-28 | 2017-09-29 | 江苏华洋新思路能源装备股份有限公司 | Passive relief panel of the nuclear power generating sets with drain function |
| CN105546160B (en) * | 2015-12-15 | 2019-04-16 | 中广核工程有限公司 | Nuclear power plant's air-treatment unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2757775A1 (en) * | 1996-12-27 | 1998-07-03 | Panol | Ventilation duct shutter to prevent spread of flames and smoke in event of fire |
| CN2527309Y (en) * | 2002-02-10 | 2002-12-25 | 妥思空调设备(苏州)有限公司 | Fire-proof valve |
| CN2587448Y (en) * | 2002-06-12 | 2003-11-26 | 大连葆光节能空调设备厂 | Executor for electric fire-proof valve |
| CN101517183A (en) * | 2006-09-21 | 2009-08-26 | 萨金特制造公司 | Thermal pin assembly |
| CN202118335U (en) * | 2011-06-15 | 2012-01-18 | 宁波东灵水暖空调配件有限公司 | Explosion-proof type close range actuating mechanism |
| CN202746698U (en) * | 2012-07-11 | 2013-02-20 | 江苏阿波罗空调净化设备制造有限公司 | Locking device in fire resisting damper |
-
2012
- 2012-07-11 CN CN2012102389833A patent/CN102788180A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2757775A1 (en) * | 1996-12-27 | 1998-07-03 | Panol | Ventilation duct shutter to prevent spread of flames and smoke in event of fire |
| CN2527309Y (en) * | 2002-02-10 | 2002-12-25 | 妥思空调设备(苏州)有限公司 | Fire-proof valve |
| CN2587448Y (en) * | 2002-06-12 | 2003-11-26 | 大连葆光节能空调设备厂 | Executor for electric fire-proof valve |
| CN101517183A (en) * | 2006-09-21 | 2009-08-26 | 萨金特制造公司 | Thermal pin assembly |
| CN202118335U (en) * | 2011-06-15 | 2012-01-18 | 宁波东灵水暖空调配件有限公司 | Explosion-proof type close range actuating mechanism |
| CN202746698U (en) * | 2012-07-11 | 2013-02-20 | 江苏阿波罗空调净化设备制造有限公司 | Locking device in fire resisting damper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546160B (en) * | 2015-12-15 | 2019-04-16 | 中广核工程有限公司 | Nuclear power plant's air-treatment unit |
| CN107218421A (en) * | 2017-07-28 | 2017-09-29 | 江苏华洋新思路能源装备股份有限公司 | Passive relief panel of the nuclear power generating sets with drain function |
| CN107218421B (en) * | 2017-07-28 | 2019-04-12 | 江苏华洋新思路能源装备股份有限公司 | Passive relief panel of the nuclear power unit with drain function |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121121 |