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KR-102963345-B1 - Smoke-detecting damper system with dual controlled double shutters that charge smoke performance

KR102963345B1KR 102963345 B1KR102963345 B1KR 102963345B1KR-102963345-B1

Abstract

The present invention relates to a smoke detection damper system, and more specifically, to a smoke detection damper system having a plurality of smoke suction tubes that suck in smoke passing through a flow path and send it to a smoke detection sensor, wherein the direction of the suction holes formed in the two smoke suction tubes is different to increase the accuracy of smoke detection, and the shutters are installed in a double configuration at the front and rear to enhance smoke blocking performance, and the two shutters at the front and rear are linked and rotated in conjunction by a single motor to satisfy smoke blocking performance. A smoke detection damper system having a dual-controlled double shutter that satisfies smoke-blocking performance according to the present invention comprises: a frame connected to a duct and having a flow path formed therein; a shutter rotatably installed in the flow path of the frame to open and close the flow path; a smoke detection sensor that detects smoke passing through the flow path of the frame; a smoke suction tube provided in the flow path of the frame to absorb smoke passing through the flow path and send it to the smoke detection sensor; and a motor that rotates the shutter to close the flow path when smoke is detected by the smoke detection sensor. In this smoke detection damper system having a dual-controlled double shutter that satisfies smoke-blocking performance, the smoke suction tube is provided in multiple numbers, and the direction of formation of the suction holes in the first smoke suction tube and the second smoke suction tube are different from each other.

Inventors

  • 박일문

Assignees

  • 주식회사 성일티이씨

Dates

Publication Date
20260511
Application Date
20251024

Claims (4)

  1. A frame (10) connected to a duct and having a flow path formed therein; A shutter (20) rotatably installed in the flow path of the above frame (10) to open and close the flow path; A smoke detection sensor (30) that detects smoke passing through the flow path of the above frame (10); A smoke suction tube (40) provided in the flow path of the above frame (10) to absorb smoke passing through the flow path and send it to the smoke detection sensor (30); A smoke detection damper system comprising: a motor (50) that rotates the shutter to close the flow path when smoke is detected by the smoke detection sensor (30); The above smoke suction tubes (40) are provided in multiple numbers, and the formation directions of the suction holes of the first smoke suction tube (40) and the second smoke suction tubes (40A) among the multiple smoke suction tubes are different from each other. The smoke detection sensor (30) and controller (60) are installed inside a casing (70), and the casing (70) is detachably coupled to the frame (10). On the outer surface of the above frame (10), a 'U'-shaped bracket (80) is fixedly coupled, and a fastening hole (81) is formed in the bracket (80), and on the bottom outer surface of the above casing (70), a hook piece (71) is protruded and provided to be inserted into the fastening hole (81) and fastened in a hook manner. On the front surface of the above hook piece (71), a catch (73) is formed that engages with the bracket (80) forming the above fastening hole (81), and The above hook piece (71) is rotatably coupled to the casing (70), and a torsion spring is provided on the rotation axis (72) of the hook piece (71) to allow the hook piece (71) to be erected vertically on the bottom of the casing (70). When the hook piece (71) is pushed into the fastening hole (81), the hook piece (71) is pushed by the bracket (80) and rotates clockwise to prevent damage to the hook piece (71) and the catch (73), and when the hook piece (71) is fully inserted into the fastening hole (81), the hook piece (71) rotates counterclockwise to return to its original position so that the catch (73) catches on the bracket (80). An L-shaped support member (90) having a first support member (91) and a second support member (92) is rotatably coupled to the casing (70), the first support member (91) supports the front of the hook member (71) with respect to the rotation axis (72) of the hook member (71) to prevent the hook member (71) from rotating clockwise, and the second support member (92) faces the rear of the hook member (71). A torsion spring is provided on the rotation axis (93) of the support body (90) to receive a force that attempts to rotate the support body (90) in a counterclockwise direction, and a stopper (74) that blocks the first support member (91) is provided on the casing (70) to prevent the support body (90) from rotating further in a counterclockwise direction. A release pin (75) is provided on the side of the casing (70), and the release pin (75) is connected to a second support member (92) of the support member (90). A smoke detection damper system characterized by the fact that when the release pin (75) is pressed, the second support member (92) is pushed and rotates clockwise, pushing toward the rear side of the hook piece (71), and then the hook piece (71) rotates clockwise, and then the locking coupling between the hook projection (73) of the hook piece (71) and the bracket (80) is released.
  2. In Article 1, The above shutter (20) is provided in a double configuration at the front and rear of the flow path of the above frame (10), and A smoke detection damper system characterized in that the front shutter (20) and the rear shutter (20) are linked to each other and rotate in conjunction by the control of the motor (50).
  3. In Article 1 or Article 2, A smoke detection damper system characterized by having a metal contact plate (15) that has elasticity on the inner surface of the frame (10) and is in close contact with the end of the shutter (20).
  4. In Article 1 or Article 2, The above shutter (20) is provided in multiple numbers, and the edge of the large shutter is provided with a contact portion (22) having a grooved surface structure that overlaps with the edge of another shutter when closed. A smoke detection damper system characterized by having a flame-retardant pad (23) attached to the above-mentioned contact portion (22).

Description

Smoke-detecting damper system equipped with dual-controlled double shutters that charge smoke performance The present invention relates to a smoke detection damper system, and more specifically, to a smoke detection damper system having a plurality of smoke suction tubes that suck in smoke passing through a flow path and send it to a smoke detection sensor, wherein the direction of the suction holes formed in the two smoke suction tubes is different to increase the accuracy of smoke detection, and the shutters are installed in a double configuration at the front and rear to enhance smoke blocking performance, and the two shutters at the front and rear are linked and rotated in conjunction by a single motor to satisfy smoke blocking performance. Due to urban overcrowding and the development of construction technology, the large size and height of buildings have become common, and the uses of buildings are also becoming more complex and diverse. Although regulations require large-scale buildings to establish advanced fire prevention systems for fire safety, they are not safe from fire. When a fire occurs inside or outside a building, occupants are affected not only by the direct flames near the source of the fire but also by smoke carried by the fire currents and spreading throughout the building; in particular, diffused smoke is known to be more harmful to the human body. The reason smoke has a harmful effect on the human body during a building fire is that combustion gases are diluted by air during the flow process. Although the risk is lower than that of flames or post-combustion gases, it is more harmful and dangerous to the human body because it spreads faster than flames. Buildings such as apartments are equipped with ducts connecting to the kitchen and bathroom of each unit, as well as ventilation ducts. In the event of a fire, the flames can spread through these ducts and develop into a large-scale fire. Fire dampers are installed in the ducts to prevent the spread of fire through them. Fire dampers block the spread of fire by closing the flow path of the duct when a fire is detected. The applicant proposed Registered Patent No. 10-2740418, "Duct-integrated smoke detection fire damper." As prior art, the aforementioned registered patent No. 10-2740418, "Duct-integrated smoke detection fire damper," comprises: a frame having a flow path; an opening/closing member for opening and closing the flow path of the frame; a motor for driving the opening/closing member; a smoke detection sensor for detecting smoke around the frame; and a smoke suction tube for sucking in smoke passing through the flow path and sending it to the smoke detection sensor. The above-mentioned prior art uses a single smoke suction tube. When using a single smoke suction tube, there is a risk that the accuracy of smoke detection will decrease due to reasons such as the inside of the tube becoming clogged or the direction of the suction port being located in a direction where it is difficult to suck in smoke. Furthermore, the aforementioned conventional technology has weak smoke-blocking performance in that the opening and closing member (shutter) closes the flow path only once. Furthermore, the aforementioned conventional technology creates a gap between the frame and the opening/closing member, which also weakens the smoke-blocking performance. FIG. 1 is a drawing illustrating an example of a smoke detection damper system equipped with a dual-controlled double shutter that satisfies smoke-blocking performance according to the present invention. FIG. 2 is a photograph serving as a drawing showing a smoke detection sensor, a motor, and a controller in a smoke detection damper system equipped with a dual-controlled double shutter that satisfies smoke-blocking performance according to the present invention. FIG. 3 is a photograph serving as a drawing showing a smoke intake tube and a double shutter in a smoke detection damper system equipped with a dual-controlled double shutter that satisfies smoke-blocking performance according to the present invention. FIG. 4 is a drawing illustrating the detachable structure of the frame and casing. Hereinafter, a smoke detection damper system equipped with a dual-controlled double shutter that satisfies smoke-blocking performance according to the present invention will be described in more detail with reference to the drawings. Before describing in more detail the smoke detection damper system equipped with a dual-controlled double shutter satisfying smoke-blocking performance according to the present invention, The present invention is capable of various modifications and may take various forms, and embodiments (aspects or examples) are to be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed forms, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope