CN113294529B - Smoke-discharging fireproof valve capable of accelerating smoke discharging - Google Patents

Smoke-discharging fireproof valve capable of accelerating smoke discharging Download PDF

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Publication number
CN113294529B
CN113294529B CN202110734644.3A CN202110734644A CN113294529B CN 113294529 B CN113294529 B CN 113294529B CN 202110734644 A CN202110734644 A CN 202110734644A CN 113294529 B CN113294529 B CN 113294529B
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CN
China
Prior art keywords
valve body
side wall
guide plate
blade
smoke
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CN202110734644.3A
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Chinese (zh)
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CN113294529A (en
Inventor
范月明
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Zhejiang Caoe Ventilation Equipment Co ltd
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Zhejiang Caoe Ventilation Equipment Co ltd
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Publication of CN113294529A publication Critical patent/CN113294529A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a smoke exhaust fireproof valve capable of accelerating smoke exhaust, and belongs to the technical field of smoke exhaust fireproof valves. A smoke exhaust fireproof valve capable of accelerating smoke exhaust comprises a valve body, a control box, a rotating shaft, blades, a first limiting structure and a second limiting structure; the number of the rotating shafts is multiple, and the rotating shafts are rotationally connected between the left inner side wall and the right inner side wall of the valve body; the blades comprise a left blade and a right blade, and the left blade and the right blade are symmetrically and fixedly arranged on the outer wall of the rotating shaft; when the blades rotate to a vertical state, every two adjacent blades are contacted with each other; the control box is fixedly arranged at the side end of the valve body and is used for driving the rotating shaft to rotate relative to the valve body; the first limiting structure is arranged between the left blade and the left and right inner side walls of the valve body; through the setting of first limit structure and second limit structure, the fire damper is discharged to the accelerated flue gas, has reduced the residual potential safety hazard that brings of flue gas.

Description

Smoke-discharging fireproof valve capable of accelerating smoke discharging
Technical Field
The invention relates to the technical field of smoke exhaust fireproof valves, in particular to a smoke exhaust fireproof valve capable of accelerating smoke exhaust.
Background
The smoke discharging fire-proof valve is a fire-proof component, which is generally installed on the pipeline of the mechanical smoke discharging system, is in an open state at ordinary times, is opened for discharging smoke when a fire disaster occurs, is closed when the temperature of the smoke in the smoke discharging pipeline reaches 280 ℃, meets the requirements of smoke leakage and fire-proof integrity in a certain time, and plays a role of smoke isolation and fire resistance.
The problem that the smoke exhaust speed is not fast enough is inevitably found in the actual use process of the smoke exhaust fireproof valve, if the smoke exhaust speed is not fast enough, the residual of smoke can be caused, so that potential safety hazard is brought, and even accidents are caused; in addition, excessive pressure can be generated on the inner wall of the smoke exhaust fireproof valve, so that the subsequent use of the smoke exhaust fireproof valve is affected.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide the smoke exhaust fireproof valve capable of accelerating smoke exhaust, which can accelerate smoke exhaust fireproof valve through the arrangement of the first limiting structure and the second limiting structure, and reduce the potential safety hazard caused by smoke residue.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
A smoke exhaust fireproof valve capable of accelerating smoke exhaust comprises a valve body, a control box, a rotating shaft, blades, a first limiting structure and a second limiting structure;
the number of the rotating shafts is multiple, and the rotating shafts are rotationally connected between the left inner side wall and the right inner side wall of the valve body;
the blades comprise a left blade and a right blade, and the left blade and the right blade are symmetrically and fixedly arranged on the outer wall of the rotating shaft; when the blades rotate to a vertical state, every two adjacent blades are contacted with each other;
the control box is fixedly arranged at the side end of the valve body and is used for driving the rotating shaft to rotate relative to the valve body;
the first limiting structure is arranged on the lower surface of the left blade and is positioned between the left inner side wall and the right inner side wall of the valve body;
the second limiting structure is arranged between the left inner side wall and the right inner side wall of the valve body and is positioned on the upper side of the rotating shaft;
and a smoke passing channel through which smoke can pass through in an accelerating way is formed among the first limiting structure, the second limiting structure and the left blade.
Further, the first limiting structure comprises a soft elastic baffle, a first guide plate and a second guide plate; the first guide plate is fixedly arranged between the left inner side wall and the right inner side wall of the valve body; the soft elastic baffle is fixedly arranged between the upper end of the first guide plate and the lower end of the left blade; the second guide plate is fixedly arranged at the lower end of the first guide plate.
Further, the first guide plate is arranged obliquely downwards relative to the left blade.
Further, the second guide plate is made of semi-hard rubber.
Further, the second limiting structure comprises a limiting plate, two sliding blocks, two sliding grooves and two compression springs; the left end and the right end of the limiting plate are respectively contacted with the left inner side wall and the right inner side wall of the valve body, and the lower end of the limiting plate is contacted with the upper end of the rotating shaft; the two sliding grooves are respectively arranged on the left inner side wall and the right inner side wall of the valve body; the sliding block is connected in the sliding groove in a sliding way; the limiting plate slides in the valve body through the sliding block; the compression spring is fixedly arranged between the inner side wall of the chute far away from the rotating shaft and the sliding block.
Further, the lower end of the limiting plate is of an arc-shaped structure matched with the outer diameter of the rotating shaft.
Further, the right end face of the second guide plate and the right end face of the limiting plate are located in the same vertical plane.
Further, when the right blade is in the vertical state, the right end face of the first guide plate is positioned on the left side of the left end face of the right blade.
Further, during smoke exhaust, the blades repeatedly rotate from a horizontal state to a counterclockwise state, contact the left blade with the first guide plate and then rotate clockwise to return to the horizontal state.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
according to the scheme, the smoke exhaust fire prevention valve can be accelerated through the arrangement of the first limiting structure and the second limiting structure, and the potential safety hazard caused by smoke residue is reduced.
And (II) the first limiting structure and the second limiting structure are matched to accelerate the smoke to be discharged out of the fireproof valve, and accelerate the air flow in the valve body, so that the smoke is accelerated to enter the valve body.
And thirdly, the second limiting structure can transversely move relative to the valve body, so that the rotation of the blade from the horizontal state to the vertical state is not easily affected.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic perspective view of a first limit structure, a second limit structure and a blade portion according to the present invention;
FIG. 4 is a schematic perspective view of a limiting plate and slider portion of the present invention;
FIG. 5 is a schematic view of a cross-sectional perspective view of a valve body part according to the present invention;
FIG. 6 is a schematic diagram of the structure at A in FIG. 5;
FIG. 7 is a schematic view of a vane of the present invention rotated counterclockwise by a certain angle;
FIG. 8 is a schematic view of the vane of the present invention rotated counterclockwise to a maximum angle;
FIG. 9 is a schematic view of the structure of the vane of the present invention rotated clockwise by a certain angle;
FIG. 10 is a schematic view of the structure of the vane of the present invention rotated clockwise until two adjacent vanes contact;
fig. 11 is a schematic diagram of the structure at B in fig. 10.
The reference numerals in the figures illustrate:
the valve comprises a valve body 1, a control box 2, a rotating shaft 3, a left blade 4-1, a right blade 4-2, a first limiting structure 5, a soft and elastic baffle 5-1, a first guide plate 5-2, a second guide plate 5-3, a second limiting structure 6, a limiting plate 6-1, a sliding block 6-2, a sliding groove 6-3 and a compression spring 6-4.
Detailed Description
Please refer to fig. 1-11, which illustrate a smoke-exhausting fire-proof valve capable of accelerating smoke exhaust, comprising a valve body 1, a control box 2, a rotating shaft 3, blades, a first limit structure 5 and a second limit structure 6.
The quantity of the rotating shafts 3 is a plurality of, and a plurality of rotating shafts 3 are rotatably connected between the left inner side wall and the right inner side wall of the valve body 1, and a plurality of rotating shafts 3 are distributed in the valve body 1 from top to bottom at intervals.
The blades comprise a left blade 4-1 and a right blade 4-2, and the left blade 4-1 and the right blade 4-2 are symmetrically and fixedly arranged on the outer wall of the rotating shaft 3; when the blades rotate to a vertical state, every two adjacent blades are in contact with each other, the valve body 1 is in a closed state, and smoke cannot be discharged through the valve body 1.
The control box 2 is fixedly arranged at the side end of the valve body 1, and the control box 2 is used for driving the rotating shaft 3 to rotate relative to the valve body 1.
The first limiting structure 5 is arranged on the lower surface of the left blade 4-1 and is positioned between the left inner side wall and the right inner side wall of the valve body 1; the first limiting structure 5 comprises a soft elastic baffle 5-1, a first guide plate 5-2 and a second guide plate 5-3; the first guide plate 5-2 is fixedly arranged between the left inner side wall and the right inner side wall of the valve body 1; the soft elastic baffle 5-1 is fixedly arranged between the upper end of the first guide plate 5-2 and the lower end of the left blade 4-1, and the left and right side ends of the soft elastic baffle 5-1 are contacted with the left and right inner side walls of the valve body 1; the second guide plate 5-3 is fixedly arranged at the lower end of the first guide plate 5-2, and the soft elastic baffle 5-1 is arranged so that a larger gap is not easy to generate between the left blade 4-1 and the first guide plate 5-2 in the rotation process of the blade following the rotating shaft 3.
The first guide plate 5-2 is obliquely downwards arranged relative to the left blade 4-1, and a deceleration area is formed between the first guide plate 5-2 and the next left blade 4-1 through the oblique arrangement of the first guide plate 5-2, so that flue gas can be accelerated and discharged after being decelerated firstly and then passing between the second guide plate 5-3 and the limiting plate 6-1, and the venturi effect is the same, namely, when the flue gas flows in the valve body 1, the dynamic pressure reaches the maximum value, the static pressure reaches the minimum value and the speed of the flue gas rises due to the reduction of the cross section area of the through flow when passing through the narrowest second guide plate 5-3 and the limiting plate 6-1.
The second guide plate 5-3 is made of semi-hard rubber, so that the second guide plate 5-3 has flexibility and certain hardness, and further the second guide plate 5-3 can deform under the action of larger external force, namely, when the rotating shaft 3 drives the blades to rotate clockwise, the right blades 4-2 rotate from a horizontal state to a vertical state to be in contact with the adjacent left blades 4-1, the second guide plate 5-3 is not easy to cause obstruction to the rotation of the right blades 4-2, and when smoke is discharged, the flow of smoke is not easy to cause larger deformation of the second guide plate 5-3.
When the right blade 4-2 is in the vertical state, the right end face of the first guide plate 5-2 is positioned at the left side of the left end face of the right blade 4-2.
The second limiting structure 6 is arranged between the left inner side wall and the right inner side wall of the valve body 1, and the second limiting structure 6 is positioned on the upper side of the rotating shaft 3; the second limiting structure 6 comprises a limiting plate 6-1, two sliding blocks 6-2, two sliding grooves 6-3 and two compression springs 6-4; the left end and the right end of the limiting plate 6-1 are respectively contacted with the left inner side wall and the right inner side wall of the valve body 1, and the lower end of the limiting plate 6-1 is contacted with the upper end of the rotating shaft 3; the two sliding grooves 6-3 are respectively arranged on the left inner side wall and the right inner side wall of the valve body 1; the sliding block 6-2 is connected in the sliding groove 6-3 in a sliding way; the limiting plate 6-1 slides in the valve body 1 through the sliding block 6-2; the compression spring 6-4 is fixedly arranged between the inner side wall of the chute 6-3 far away from the rotating shaft 3 and the sliding block 6-2.
The lower end of the limiting plate 6-1 is of an arc-shaped structure matched with the outer diameter of the rotating shaft 3, and through the arrangement of the special shape of the lower end of the limiting plate 6-1, the contact between the limiting plate 6-1 and the rotating shaft 3 is tighter, and a gap is not easy to exist between the limiting plate 6-1 and the rotating shaft 3 in the process that the rotating shaft 3 rotates around the inner wall of the valve body 1.
The right end face of the second guide plate 5-3 and the right end face of the limiting plate 6-1 are positioned in the same vertical plane.
A smoke passing channel for the smoke to pass through in an accelerating way is formed between the first limiting structure 5, the second limiting structure 6 and the upper and lower adjacent left blades 4-1, and the specific smoke passing channel is an area formed by the soft elastic baffle 5-1, the first guide plate 5-2, the second guide plate 5-3, the limiting plate 6-1 and the upper and lower adjacent left blades 4-1.
During smoke exhaust, the blades repeatedly rotate anticlockwise from a horizontal state to a process that the left blade 4-1 contacts the first guide plate 5-2 and then rotates clockwise to return to the horizontal state.
In the smoke discharging process, the rotating shaft 3 drives the blades to rotate anticlockwise within a small range firstly, then the blades rotate clockwise within the small range (the clockwise rotating range is the range between the first guide plate 5-2 and the limiting plate 6-1), and the blades rotate in a reciprocating and circulating mode, so that a deceleration area for smoke flow can be formed between the first guide plate 5-2 and the adjacent limiting plate 6-1 and between the first guide plate and the adjacent left blade 4-1 in the rotating process firstly, the smoke is discharged in an accelerating mode after passing through the second guide plate 5-3 and the adjacent limiting plate 6-1, and on the other hand, the air flow in the valve body 1 can be accelerated by the reciprocating and circulating motion of the blades, and the smoke can enter the valve body 1 and be discharged out of the valve body 1 in an accelerating mode.

Claims (3)

1. A fire damper that discharges fume that can accelerate to discharge fume which characterized in that: comprises a valve body (1), a control box (2), a rotating shaft (3), blades, a first limit structure (5) and a second limit structure (6);
the number of the rotating shafts (3) is multiple, and the rotating shafts (3) are rotatably connected between the left inner side wall and the right inner side wall of the valve body (1);
the blades comprise a left blade (4-1) and a right blade (4-2), and the left blade (4-1) and the right blade (4-2) are symmetrically and fixedly arranged on the outer wall of the rotating shaft (3); when the blades rotate to a vertical state, every two adjacent blades are contacted with each other;
the control box (2) is fixedly arranged at the side end of the valve body (1), and the control box (2) is used for driving the rotating shaft (3) to rotate relative to the valve body (1);
the first limiting structure (5) is arranged on the lower surface of the left blade (4-1) and is positioned between the left inner side wall and the right inner side wall of the valve body (1);
the second limiting structure (6) is arranged between the left inner side wall and the right inner side wall of the valve body (1), and the second limiting structure (6) is positioned on the upper side of the rotating shaft (3);
a smoke passing channel for the accelerated passing of smoke is formed among the first limiting structure (5), the second limiting structure (6) and the left blade (4-1);
the first limiting structure (5) comprises a soft elastic baffle (5-1), a first guide plate (5-2) and a second guide plate (5-3);
the first guide plate (5-2) is fixedly arranged between the left inner side wall and the right inner side wall of the valve body (1);
the soft elastic baffle (5-1) is fixedly arranged between the upper end of the first guide plate (5-2) and the lower end of the left blade (4-1);
the second guide plate (5-3) is fixedly arranged at the lower end of the first guide plate (5-2);
the first guide plate (5-2) is obliquely arranged downwards relative to the left blade (4-1);
the second limiting structure (6) comprises a limiting plate (6-1), two sliding blocks (6-2), two sliding grooves (6-3) and two compression springs (6-4);
the left end and the right end of the limiting plate (6-1) are respectively contacted with the left inner side wall and the right inner side wall of the valve body (1), and the lower end of the limiting plate (6-1) is contacted with the upper end of the rotating shaft (3);
the two sliding grooves (6-3) are respectively arranged on the left inner side wall and the right inner side wall of the valve body (1);
the sliding block (6-2) is connected in the sliding groove (6-3) in a sliding way; the limiting plate (6-1) slides in the valve body (1) through the sliding block (6-2);
the compression spring (6-4) is fixedly arranged between the inner side wall of the chute (6-3) far away from the rotating shaft (3) and the sliding block (6-2);
the right end face of the second guide plate (5-3) and the right end face of the limiting plate (6-1) are positioned in the same vertical plane;
when the right blade (4-2) is in a vertical state, the right end face of the first guide plate (5-2) is positioned at the left side of the left end face of the right blade (4-2);
during smoke exhaust, the blades repeatedly rotate anticlockwise from a horizontal state to a process that the left blade (4-1) contacts with the first guide plate (5-2) and then rotates clockwise to return to the horizontal state.
2. The smoke-exhausting fire-preventing valve for accelerating smoke exhaust according to claim 1, wherein: the second guide plate (5-3) is made of semi-rigid rubber.
3. The smoke-exhausting fire-preventing valve for accelerating smoke exhaust according to claim 1, wherein: the lower end of the limiting plate (6-1) is of an arc-shaped structure matched with the outer diameter of the rotating shaft (3).
CN202110734644.3A 2021-06-30 2021-06-30 Smoke-discharging fireproof valve capable of accelerating smoke discharging Active CN113294529B (en)

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CN202110734644.3A CN113294529B (en) 2021-06-30 2021-06-30 Smoke-discharging fireproof valve capable of accelerating smoke discharging

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Application Number Priority Date Filing Date Title
CN202110734644.3A CN113294529B (en) 2021-06-30 2021-06-30 Smoke-discharging fireproof valve capable of accelerating smoke discharging

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CN113294529B true CN113294529B (en) 2023-05-30

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894481A (en) * 1972-04-03 1975-07-15 American Warming Ventilation Multi-blade damper
JP2005214547A (en) * 2004-01-30 2005-08-11 Sumitomo Metal Ind Ltd Damper and its opening and closing control method
CN208935545U (en) * 2018-11-14 2019-06-04 东莞市博雅实业有限公司 A kind of smoke exhaust fire damper accelerating smoke evacuation
CN210830505U (en) * 2019-07-08 2020-06-23 武汉高新鼓风机制造有限公司 Smoke exhaust valve for fire-fighting ventilating duct
CN212868490U (en) * 2020-07-10 2021-04-02 重庆明华玻璃钢有限公司 High temperature resistant type fire prevention valve of discharging fume
CN213017943U (en) * 2020-08-25 2021-04-20 绍兴市上虞区兴荣风机有限公司 Novel smoke-discharging fire-proof valve
CN213117509U (en) * 2020-07-27 2021-05-04 福建鑫闽风通风设备有限公司 Smoke-discharging fire-proof valve convenient for cleaning smoke scale
CN213361230U (en) * 2020-09-01 2021-06-04 江苏扬消空调工程有限公司 Smoke exhaust fire prevention valve for accelerating smoke exhaust

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20140132U1 (en) * 2014-12-22 2016-06-22 Wamgroup Spa MULTI-PALLET DOSING VALVE

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894481A (en) * 1972-04-03 1975-07-15 American Warming Ventilation Multi-blade damper
JP2005214547A (en) * 2004-01-30 2005-08-11 Sumitomo Metal Ind Ltd Damper and its opening and closing control method
CN208935545U (en) * 2018-11-14 2019-06-04 东莞市博雅实业有限公司 A kind of smoke exhaust fire damper accelerating smoke evacuation
CN210830505U (en) * 2019-07-08 2020-06-23 武汉高新鼓风机制造有限公司 Smoke exhaust valve for fire-fighting ventilating duct
CN212868490U (en) * 2020-07-10 2021-04-02 重庆明华玻璃钢有限公司 High temperature resistant type fire prevention valve of discharging fume
CN213117509U (en) * 2020-07-27 2021-05-04 福建鑫闽风通风设备有限公司 Smoke-discharging fire-proof valve convenient for cleaning smoke scale
CN213017943U (en) * 2020-08-25 2021-04-20 绍兴市上虞区兴荣风机有限公司 Novel smoke-discharging fire-proof valve
CN213361230U (en) * 2020-09-01 2021-06-04 江苏扬消空调工程有限公司 Smoke exhaust fire prevention valve for accelerating smoke exhaust

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