CN2642350Y

CN2642350Y - High air-tight fireproof and smoke venting fireproof valve

Info

Publication number: CN2642350Y
Application number: CN 03276673
Authority: CN
Inventors: 吴舜卿
Original assignee: Guangzhou Taichang Industrial Co ltd
Current assignee: Guangzhou Taichang Industrial Co ltd
Priority date: 2003-08-22
Filing date: 2003-08-22
Publication date: 2004-09-22
Anticipated expiration: 2013-08-22

Abstract

The utility model is a high-air dense fire-proof and smoke-drainage fire-protective valve, which comprises a valve body, a lamina and an implement framework. A main lamina axis and an assistant lamina axis are fixed between the valve bodies respectively. A main lamina and an assistant lamina are connected with the main lamina axis and the assistant lamina axis respectively. The main lamina axis is connected with a main axis of the implement framework. The shape of the main lamina and the assistant lamina is that one side is a groove shape and another side is a right-angle clasp-shape abnormal side; the contact part between the valve body and the abnormal side of the lamina is fixed with a ''Z'' shaped baffle, which is combined with the valve body to form a groove. A clamp slot clamped into the right-angle clasp-shape abnormal side of the groove is connected between the lamina and the valve body. One side of the groove is felted with heat-resistant, sealed and combined material; a wind-block bar is arranged in the groove; when closing the valve, the gap between the outer frame of the valve body and the lamina can be blocked; a closed ball bearing is arranged inside of the bracket of the axis arm that guarantees the valve close or open normally in high-temperature and high-humidity environment. The device can be used in the underground construction, subway engineering, water and electricity engineering, fire and electricity engineering and the engineering with the aeration air-condition also used as a smoke-drainage system.

Description

High airtight fire prevention, smoke evacuation fire resisting damper

Technical field

The utility model relates to fire resisting damper or the smoke evacuation fire resisting damper that uses in a kind of the building.

Background technology

In some important buildings, generally be provided with automatic fire alarm system, fire resisting damper or smoke evacuation fire resisting damper need be set on the sending of ventilation, air-conditioning system and mechanical smoke extraction system or smoke evacuation system double as air-conditioning system, return air house steward and horizontal branch pipe, and controlled by the automatic fire alarm center.Existing fire resisting damper and smoke evacuation fire resisting damper generally are made up of vane-type shutter and the two large divisions of executing agency.Vane-type shutter remains the eighties of last century the eighties product structure in mid-term, and between its valve body housing and blade, blade and interlobate gap be obvious, inleakage is bigger, and air-tightness is relatively poor.The air-tightness of existing fire resisting damper, smoke evacuation fire resisting damper can not satisfy the pertinent regulations of " fire resisting damper ", " smoke evacuation fire resisting damper " national standard and the international standard ISOI0294-2 that are working out.

Technology contents

The purpose of this utility model provides a kind of high airtight fire prevention, smoke evacuation fire resisting damper, solve between valve body housing and blade, blade with interlobate clearance seal is bad, inleakage greatly, the relatively poor problem of air-tightness.

The airtight fire prevention of height of the present utility model, the technical scheme of smoke evacuation fire resisting damper: this valve comprises valve body, blade and executing agency, main lobe bobbin and accessory lobes bobbin are separately fixed between valve body, primary blades and back blades respectively with the master, the accessory lobes bobbin connects, the main lobe bobbin is connected with the executing agency main shaft, it is characterized in that: main, the shape on back blades both sides is to be groove shape on one side, another side is the heterotype edge of right angle hook-type, valve body is fixed " Z " font baffle plate with the position that the blade heterotype edge contacts, also form groove shape with valve body, main, between the back blades, be that the catching groove that the heterotype edge of right angle hook-type buckles into groove is connected between blade and the valve body, one side bonding refractory seals combined material of groove, the built-in weather strip of catching groove.

Above-mentioned major and minor sharf is a square shaft, and two square shafts connect drive plate respectively, articulated linkage between the drive plate, drive plate one end connection closed extension spring.

Insert in the shaft shoulder support of valve body above-mentioned major-minor sharf end, settles closed ball bearing and copper sheathing between each sharf and shaft shoulder support.

On the above-mentioned executing agency main shaft air quantity regulating handle is arranged.

The slim elastomeric pad of stainless steel is housed on the above-mentioned shaft shoulder support, and all there is the slim elastomeric pad of stainless steel in the slit between blade both ends and the shaft shoulder support.

The course of work: 1, pass through binding post when fire alarm control centre sends cigarette (temperature) electrification signal (DC24V), input dc power magnet, the electromagnet core adhesive, affect lever connecting rod and strut to throw off, the headstock gear hook that is installed on executing agency's main shaft breaks away from rapid valve-off under the double action of the extension spring on main shaft torsion spring and the active blade with roller on the strut.When valve closing, the right-angle side of primary blades is pressed on the spill encapsulant of back blades, shutoff the slit between blade and the blade; Valve body frame up and down both sides adopts " Z " font deep bead, at deep bead inwall bonding refractory seals combined material, when valve closing, shutoff the slit between valve body housing and the blade.

2, when the fuse sheet on the heat detector moves, the heat detector baffle plate is under the torsion spring effect, and an end of baffle plate pushes the lever connecting rod open and strut is thrown off, and moment, the extension spring on main shaft torsion spring and the blade axle head discharges the power of closing simultaneously, and valve is closed rapidly.

3, manual draw ring, direct pull lever connecting rod and strut are thrown off, and its course of work is identical with aforementioned 1,2.

Beneficial effect: 1, this valve has improved deep bead shape and blade shape, between blade two ends and the valve body, all installed the encapsulant that can bear 1200 ℃ of high temperature between blade and the blade, when guaranteeing valve closing, place the valve windward side with light, can't see the light leak part from the another side.

2, the shaft end of the main lobe bobbin of this valve and accessory lobes bobbin is designed to square shaft, square hole tight fit on square shaft and the drive plate, on each drive plate same position, all there is pivot pin that connecting rod is linked firmly, when the active blade axle was closed under torsion spring and extension spring effect, accessory lobes bobbin synchronizing moment under the traction of primary blades drive plate was closed.

3, this valve not only is equipped with copper sheathing at the two ends of each sharf, simultaneously at shaft shoulder internal stent closed ball bearing is housed also, guarantees that valve can normally open or close under high temperature, hot environment for a long time.

4, on this valve main lobe bobbin executing agency is installed, the back blades shaft extension goes out the valve body housing, and the pointer on its axial end refers in the unlatching or closed position of blade fully aware ofly.Binding post is fixed on the side of executing agency, easy-to-connect.

This valve is installed on the pipeline of ventilation and air conditioning system, be opening at ordinary times, during fire, by the smoke alarm output DC24V signal of telecommunication or 70 ℃ of heat detector actions, the automatic tight closing of valve, this valve is effective packing pyrotechnics seepage in the fire resistance period of regulation.Applicable fire resisting damper or the smoke evacuation fire resisting damper done in subway work, hypogee, water power, thermal power project and ventilation, the air-conditioning system double as smoke evacuation system engineering.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is that the B of Fig. 1 is to view;

Fig. 5 is the C-C profile of Fig. 3;

Fig. 6 is executing agency's structural representation;

Fig. 7 is the D-D profile of Fig. 6;

Fig. 8 is the E-E profile of Fig. 7.

The specific embodiment

Embodiment is shown in Fig. 1-8, high airtight fire prevention, smoke evacuation fire resisting damper comprise executing agency 1 and valve body 2, valve body comprises upper and lower exterior deckle board 3, left and right sides exterior deckle board 4, special-shaped blade 5 masters, 5 pairs, blade tip weather strip 6, " Z " font baffle plate 7, sharf drive plate 8, closes extension spring 9, connecting rod 10, ball bearing 11, copper sheathing 12 and shaft shoulder support 13 shown in Fig. 1,2,3,4,5.Shaft shoulder support 13 and 4 welding of upper and lower outer frame plate, " Z " font baffle plate 7 and 3 welding of upper and lower outer frame plate, when the special-shaped blade 5 of installation is advocated peace 5 pairs, at first in 13 borings of shaft shoulder support, bearing 11 and copper sheathing 12 are installed, drive plate 8 and connecting rod 10 are installed and are closed extension spring 9 at the advocate peace shaft end of 5 pairs of special-shaped blade 5, manual link 10 checks that special-shaped blade 5 main 5 secondary rotations should be year flexibly, no jam, check that simultaneously primary blades and back blades overlap joint must be smooth, do not have distortion, rectify in blade 5 two of 5 pairs of advocating peace, welding weather strip 6 on the shaft shoulder support on anti-two sides is at the inwall bonding refractory seals combined material of weather strip 6 and " Z " font baffle plate 7.End at main lobe bobbin 14 is installed executing agency 1.

Executing agency such as Fig. 6,7, shown in 8, comprise casing 15, microswitch 16, electromagnet 18, connecting rod 19, strut assembly 20 is installed on the pillar III26, its strut below also has torsion spring 25, connecting rod 19 1 ends are connected with electromagnet 18, the other end is bearing on pillar I22 and the torsion spring 21, heat detector baffle plate 31 is contained on the pillar II23, heat detector 30 is packed in the heat detector support 24, main shaft hook 27 is with main shaft 28 and close torsion spring 29 composition main shaft headstock gears, wherein linking up with 27 the end and the roller of strut assembly afterbody joins, crane span structure 34 two ends are fixed on casing 15 both sides, and its crane span structure 34 is enclosed within on the main shaft 28, and reseting handle 36 (also claiming the air quantity regulating handle) is fixed on the main shaft 28, five hole binding posts 32 are loaded in the terminal box 33, terminal box 33 is fixed on casing 15 left sides, and manually draw ring 35 1 ends are connected the end of connecting rod 19, and the other end passes outside the casing end face, expose draw ring, be convenient to manual-lock.

The shape of abnormity blade is to be groove shape on one side, another side is the right angle hook-type, and one side bonding refractory seals combined material of band groove shape is when valve closing, the right angle crochet of primary blades is withheld on the encapsulant in the groove of back blades, shutoff the slit between blade and the blade; " Z " font deep bead shutoff of gap between wherein upper and lower exterior deckle board inwall and the blade.The inboard bonding of deep bead refractory seals combined material; Left and right exterior deckle board inwall welding shaft shoulder support, the baffle plate shutoff of bonding refractory seals combined material is adopted in the gap of shaft shoulder support and blade tip.At an end of valve body main lobe bobbin executing agency is installed, the other end is equipped with closes extension spring, enough close power and makes its blade tight closing to guarantee that valve has.The slim elastomeric pad of stainless steel is housed on the above-mentioned shaft shoulder support, and the slit between blade both ends and the shaft shoulder support all compensates with the slim elastomeric pad of stainless steel.

Executing agency comprises casing, electromagnet, binding post, heat detector, microswitch, main shaft headstock gear and air quantity regulating handle, wherein the middle part of the link-type connecting rod in the main shaft headstock gear is fixed on the support column I, its end is connected with electromagnet, and the other end is connected with the strut assembly; The strut assembly is fixed on the support column III, and its end is equipped with the hook engagement in roller and the main shaft headstock gear; Heat detector baffle plate and torsion spring are contained on the support column II, and an end of baffle plate compresses heat detector core bar end, and the other end is relative with lever connecting rod.Binding post in the executing agency joins with lead and fire control centre, and with the air conditioner equipment interlocking.

For the purpose of eye-catching safety, the spraying paint of valve body housing and blade surfaces externally and internally, plastic-blasting or baking vanish color all adopt crocus.

Claims

1, a kind of high airtight fire prevention, the smoke evacuation fire resisting damper, comprise valve body, blade and executing agency, main lobe bobbin and accessory lobes bobbin are separately fixed between valve body, primary blades and back blades respectively with the master, the accessory lobes bobbin connects, the main lobe bobbin is connected with the executing agency main shaft, it is characterized in that: main, back blades is and is groove shape on one side, another side is the special-shaped blade of hook-type, valve body is fixed " Z " font baffle plate with the position that the blade heterotype edge contacts, also form groove shape with valve body, main, all be that the catching groove that the hook-shaped edges of special-shaped blade buckles into the groove limit is connected the built-in weather strip of catching groove, one side bonding refractory seals combined material of groove between the back blades and between blade and the valve body.

2, the airtight fire prevention of height according to claim 1, smoke evacuation fire resisting damper is characterized in that: the hook-shaped edges of described special-shaped blade is straight hook-type, oblique hook-type or groove hook-type.

3, the airtight fire prevention of height according to claim 1 and 2, smoke evacuation fire resisting damper, it is characterized in that: described major and minor sharf is a square shaft, and two square shafts connect drive plate respectively, articulated linkage between the drive plate, drive plate one end connection closed extension spring.

4, the airtight fire prevention of height according to claim 1 and 2, smoke evacuation fire resisting damper is characterized in that: insert in the shaft shoulder support of valve body described major-minor sharf end, settles closed ball bearing and copper sheathing between each sharf and shaft shoulder support.

5, the airtight fire prevention of height according to claim 1, smoke evacuation fire resisting damper is characterized in that: on the described executing agency main shaft air quantity regulating handle is arranged.

6, the airtight fire prevention of height according to claim 1, smoke evacuation fire resisting damper, it is characterized in that: the slim elastomeric pad of stainless steel is housed on the described shaft shoulder support, and the slit between blade both ends and the shaft shoulder support accompanies the slim elastomeric pad of stainless steel.