A long-time resistant fire damper

Abstract

This invention relates to a flame arrester, specifically a long-lasting, fire-resistant flame arrester. The long-lasting, fire-resistant flame arrester is characterized by comprising an upper shell, a middle shell, and a lower shell. The outer edges of the upper shell and the lower shell are connected by a bidirectional threaded rod. The middle shell is disposed between the upper and lower shells, with its upper surface connected to the bottom surface of the upper shell and its bottom surface connected to the upper surface of the lower shell. A sealing valve plate is disposed within the cavity of the upper shell, and a drive motor is disposed on the outside of the upper shell. The drive motor can drive the sealing valve plate to rotate within the cavity of the upper shell, preventing the spread of flames. The middle shell is provided with a heat dissipation coil, with electrically controlled valves located at both the cold source inlet and outlet of the heat dissipation coil. This invention can effectively prevent the further spread of flames and dissipate heat from the flame arrester, providing workers with sufficient time to extinguish the fire.

Description

Technical Field

[0001] This invention relates to a flame arrester, specifically a flame arrester that is resistant to prolonged burning. Background Technology

[0002] A flame arrester, also known as a fire extinguisher, is a safety device used to prevent the spread of flames from flammable gases and liquid vapors between pipes and equipment, and to prevent explosions caused by backfire. A flame arrester contains many tiny channels that divide the flame into several smaller flames.

[0003] However, the flame arresters currently in use cannot effectively prevent the spread of flames for a long time, and do not allow sufficient reaction time for staff. Even if a fire is discovered, they still cannot effectively take fire-fighting measures. Summary of the Invention

[0004] The purpose of this invention is to provide a long-lasting flame arrestor that solves the problem that currently used flame arrestors cannot effectively prevent the spread of flames for a long time.

[0005] To achieve the above objectives, the technical solution adopted by this invention is as follows: 1. A long-lasting flame arrester, characterized in that it comprises an upper shell, a middle shell, and a lower shell, wherein the outer edges of the upper shell and the lower shell are connected by a bidirectional threaded tie rod; the middle shell is disposed between the upper shell and the lower shell, the upper surface of the middle shell is connected to the bottom surface of the upper shell, and the bottom surface of the middle shell is connected to the upper surface of the lower shell; a sealing valve plate is disposed in the cavity of the upper shell, and a drive motor is disposed on the outer side of the upper shell, the drive motor being capable of driving the sealing valve plate to rotate within the cavity of the upper shell to prevent the spread of flame; the middle shell is provided with a heat dissipation coil, and electrically controlled valves are disposed at both the cold source inlet and the cold source outlet of the heat dissipation coil.

[0006] Furthermore, the outer side of the upper shell is provided with fins for accelerating heat dissipation.

[0007] Furthermore, a temperature sensor is provided on the outer side of the upper shell.

[0008] Furthermore, flanges for connection are provided at the top of the upper shell and the bottom of the lower shell.

[0009] Furthermore, four corrugated flame arresting plates are provided inside the cavity of the middle shell, two of which are located above the heat dissipation coil and the other two are located below the heat dissipation coil.

[0010] Furthermore, the larger diameter ring in the flame arrestor plate is located outside the smaller diameter ring, and adjacent rings of different diameters are connected by the first inclined beam and the second inclined beam. The first inclined beam, the second inclined beam, and the rings form a through hole to facilitate the passage of gas.

[0011] Furthermore, the electronically controlled valve is electrically connected to the temperature sensor. After the temperature sensor detects a rise in the temperature of the upper shell, it transmits the signal to the electronically controlled valve and controls the valve to open, allowing the cold source to enter the heat dissipation coil for rapid heat dissipation.

[0012] Furthermore, the temperature sensor is electrically connected to the drive motor. After the temperature sensor collects the signal of the upper shell temperature rise, it transmits the signal to the drive motor. The drive motor drives the sealing valve plate to rotate, forming a sealed space and sealing the flame in the upper shell cavity to prevent the flame from spreading downward.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention features a sealing valve plate on the upper shell. When the temperature sensor detects that the upper shell temperature is too high, the drive motor rotates the sealing valve plate, which seals the upper shell, effectively preventing the flame from spreading downwards. Electrically controlled valves at the cold source inlet and outlet of the cooling coil also open, allowing cold air to enter the cooling coil and cool the flame arrester. This invention effectively prevents further flame spread and cools the flame arrester, providing workers with sufficient time to extinguish the fire. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a long-lasting, heat-resistant flame arrester.

[0015] Figure 2 This is a cross-sectional view of a long-lasting, fire-resistant flame arrester.

[0016] Figure 3 This is a schematic diagram of a heatsink coil. Detailed Implementation

[0017] like Figures 1 to 3As shown, a long-lasting flame arrester is characterized by comprising an upper shell 1, a middle shell 2, and a lower shell 3. The outer edges of the upper shell 1 and the lower shell 3 are connected by a bidirectional threaded tie rod 4. The middle shell 2 is disposed between the upper shell 1 and the lower shell 3, with its upper surface connected to the bottom surface of the upper shell 1 and its bottom surface connected to the upper surface of the lower shell 3. A sealing valve plate 5 is disposed within the cavity of the upper shell 1, and a drive motor 6 is disposed on the outside of the upper shell 1. The drive motor 6 can drive the sealing valve plate 5 to rotate within the cavity of the upper shell 1, thereby preventing the spread of flame. A heat dissipation coil 7 is disposed within the middle shell 2, and electrically controlled valves 8 are disposed at both the cold source inlet and the cold source outlet of the heat dissipation coil 7. A temperature sensor 9 is disposed on the outside of the upper shell 1. The electrically controlled valve 8 is electrically connected to the temperature sensor 9. After the temperature sensor 9 collects a signal indicating an increase in the temperature of the upper shell 1, it transmits the signal to the electrically controlled valve 8 and controls the electrically controlled valve 8 to open, allowing the cold source to enter the heat dissipation coil 7 for rapid heat dissipation. The temperature sensor 9 is electrically connected to the drive motor 6. After the temperature sensor 9 collects the signal of the temperature rise of the upper shell 1, it transmits the signal to the drive motor 6. The drive motor 6 drives the sealing valve plate 5 to seal the flame in the cavity of the upper shell 1 to prevent the flame from spreading downward.

[0018] When flames enter from the upper shell 1, the temperature sensor 9 located on the upper shell 1 detects an abnormal temperature and simultaneously transmits the abnormal temperature signal to the drive motor 6 and the solenoid valve 8. The drive motor 6 drives the sealing valve plate 5 to seal the cavity of the upper shell 1, reducing heat input. The upper shell 1 is equipped with a connecting pipe, and the drive motor 6 is connected to the connecting pipe, with its shaft placed inside the connecting pipe. The connecting shaft of the sealing valve plate 5 is connected to the shaft of the drive motor 6. At the same time, the solenoid valve 8 opens, allowing a cold source to enter the heat dissipation coil 7, carrying away a large amount of heat from the flame arrester, enabling the flame arrester to cool down rapidly and effectively prevent the spread of fire. The synergy between the sealing valve plate 5 and the heat dissipation coil 7 effectively prevents the flame arrester from overheating and failing, extending the effective time of the flame arrester and giving personnel sufficient reaction time.

[0019] The outer side of the upper shell 1 is provided with fins 10 for accelerating heat dissipation. The fins 10 can increase the heat dissipation area of ​​the upper shell 1, enabling the upper shell 1 to dissipate heat more quickly. The top of the upper shell 1 and the bottom of the lower shell 3 are both provided with flanges for connection, and the flanges are used to connect the material tank.

[0020] The cavity of the middle shell 2 is equipped with four corrugated flame arrestor plates, two of which are located above the heat dissipation coil 7, and the other two are located below the heat dissipation coil 7. The larger diameter ring in the corrugated flame arrestor plate is located outside the smaller diameter ring. A first inclined beam and a second inclined beam connect the rings of different diameters, and through holes are formed between the first inclined beam, the second inclined beam, and the rings to facilitate gas passage.

[0021] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A long-lasting, fire-resistant flame arrester, characterized in that, The device includes an upper shell, a middle shell, and a lower shell. The outer edges of the upper shell and the lower shell are connected by a bidirectional threaded tie rod. The middle shell is located between the upper and lower shells, with its upper surface connected to the bottom surface of the upper shell and its bottom surface connected to the upper surface of the lower shell. A sealing valve plate is installed inside the cavity of the upper shell, and a drive motor is installed on the outside of the upper shell. The drive motor can drive the sealing valve plate to rotate inside the cavity of the upper shell to prevent the spread of flames. The middle shell is equipped with a heat dissipation coil, and electrically controlled valves are installed at both the cold source inlet and the cold source outlet of the heat dissipation coil.

2. The long-lasting flame arrester according to claim 1, characterized in that, The outer side of the upper shell is provided with fins for accelerating heat dissipation.

3. The flame arrester with long-lasting fire resistance according to claim 1, characterized in that, A temperature sensor is installed on the outer side of the upper shell.

4. A long-lasting flame arrester according to claim 1, characterized in that, The top of the upper shell and the bottom of the lower shell are both provided with flanges for connection.

5. A long-lasting flame arrester according to claim 1, characterized in that, The cavity of the middle shell is equipped with four corrugated flame arrestor plates, two of which are located above the heat dissipation coil and the other two are located below the heat dissipation coil.

6. A long-lasting flame arrester according to claim 1, characterized in that, In the flame arrestor plate, the larger diameter ring is located outside the smaller diameter ring. Adjacent rings of different diameters are connected by the first inclined beam and the second inclined beam. The first inclined beam, the second inclined beam, and the rings form a through hole to facilitate the passage of gas.

7. A long-lasting flame arrester according to claim 3, characterized in that, The electrically controlled valve is electrically connected to the temperature sensor. After the temperature sensor collects the signal of the upper shell temperature rising, it transmits the signal to the electrically controlled valve and controls the valve to open, so that the cold source can enter the heat dissipation coil for rapid heat dissipation.

8. A long-lasting flame arrester according to claim 3, characterized in that, The temperature sensor is electrically connected to the drive motor. After the temperature sensor collects the signal of the upper shell temperature rise, it transmits the signal to the drive motor. The drive motor drives the sealing valve plate to rotate, forming a sealed space and sealing the flame in the upper shell cavity to prevent the flame from spreading downward.

Images