A fire door

Abstract

The utility model relates to the technical field of heat engineering especially, and it is a kind of fire door, its normal state, base is installed at the fire hole of boiler furnace by bolt, fire door assembly is sealed to the front end of fire door frame, fire stopping assembly is sealed to fire hole, when staff needs to observe the fire of boiler furnace, staff opens fire door assembly, then staff observes the fire of boiler furnace through fireproof glass and fire hole, fire door assembly is slowly voluntarily sealed to the front end of fire door frame, and the heat of furnace is lost by the mode of heat transfer;Including base, fire door frame and fireproof glass, the base is provided with fire hole, base front end is welded with fire door frame, and the front end of fire door frame is provided with fireproof glass, further include fire door assembly, the front end of fire door frame is set back to lean, the base is hinged with fire door assembly, the inside of fire door frame is provided with fire stopping assembly, and the fire stopping assembly is used to seal to fire hole.

Description

Technical Field

[0001] This utility model relates to the technical field of thermal energy engineering, and in particular to a fire watch door. Background Technology

[0002] In industries such as metal smelting and petrochemicals, high-temperature equipment such as furnaces and electric furnaces are usually equipped with observation doors to monitor the combustion status, temperature, and material conditions inside the furnace. Traditional observation doors often use ordinary hinge structures and simple door designs, requiring manual intervention to close, and cannot achieve automatic closure, resulting in problems such as inconvenient operation, poor sealing, and significant heat loss.

[0003] While some existing fire doors employ a gravity-closing design, their structure is flawed, resulting in rapid closing that can cause the door to collide with the frame, affecting its lifespan and compromising sealing performance. Furthermore, traditional fire door handles are often simple in design, making them inconvenient to grip and posing safety hazards, especially in high-temperature or multi-angle operating environments. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fire observation door.

[0005] This utility model discloses a fire-observation door, comprising a base, a fire-observation door frame, and fireproof glass. The base has a fire-observation opening, and the fire-observation door frame is welded to the front end of the base. The fire-observation door frame has fireproof glass at its front end. The assembly also includes a fire-observation door component. The front end of the fire-observation door frame is tilted backward. The base and the fire-observation door component are hinged together. A fire-blocking component is installed inside the fire-observation door frame to seal the fire-observation opening. In a normal state, the base is bolted to the fire-observation opening in the boiler furnace, the fire-observation door component seals the front end of the fire-observation door frame, and the fire-blocking component seals the fire-observation opening. When workers need to observe the fire in the boiler furnace, they open the observation door assembly and then operate the fire baffle assembly to release the seal on the observation door. After observing the fire through the fireproof glass and the observation door, the fire baffle assembly reseals the observation door, and the workers reseal the front end of the observation door frame. If the workers are negligent and fail to close the observation door assembly, the observation door assembly will slowly and automatically seal the front end of the observation door frame, causing heat loss from the furnace through heat transfer.

[0006] Preferably, the fire-blocking assembly includes a rotating shaft, a fire-blocking plate, and a first handle. The rotating shaft is rotatably installed inside the fire-viewing door frame, and the fire-blocking plate is installed on the rotating shaft. The fire-blocking plate seals the fire-viewing opening. A first handle is provided at one end of the rotating shaft, and the first handle is set at a 90-degree angle with the fire-blocking plate. In use, the operator holds the first handle and presses down, thereby rotating the rotating shaft. The rotating shaft further drives the fire-blocking plate to rotate upward, thereby releasing the fire-blocking plate from the fire-viewing opening. After the fire is viewed, the operator releases the first handle, so that the fire-blocking plate reseals the fire-viewing opening under its own weight.

[0007] Preferably, the fire door assembly includes a pivot pin, a fire door body, and a second handle. The fire door body is hinged to the base via the pivot pin. The rear end of the fire door body is tilted backward, and the front end of the fire door body is provided with a second handle. The front end of the fire door body is set in a vertical plane. With the help of the pivot pin, the operator releases the seal of the fire door body on the front end of the fire door frame. After the operation is completed, the operator usually seals the fire door body on the front end of the fire door frame using the second handle. If an operational error occurs and the operator forgets to close the fire door body, the rear end of the fire door body is tilted backward, and the front end of the fire door body is set in a vertical plane, causing the center of gravity of the fire door body to be set higher and further back. This setting means that even if the operator does not close the fire door body, the fire door body will automatically close under the action of the higher and further back center of gravity, improving convenience.

[0008] Preferably, it also includes a locking component, wherein a locking component is provided between the fire door frame and the fire door body, and the locking component is a ball lock; when the fire door body seals the front end of the fire door frame, the ball lock quickly locks the fire door frame and the fire door body; when the staff pulls the fire door body through the No. 1 handle, the ball lock quickly releases the lock between the fire door frame and the fire door body, improving convenience.

[0009] Preferably, the first handle has a hollowed-out extended design; the hollowed-out extended design of the first handle facilitates gripping from multiple angles.

[0010] Preferably, a soft sealing strip is provided between the fireproof glass and the fire observation door frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Under normal conditions, the base is installed at the fire port of the boiler furnace by bolts. The fire door assembly seals the front end of the fire door frame, and the fire baffle assembly seals the fire port. When the staff needs to observe the fire in the boiler furnace, the staff opens the fire door assembly and then operates the fire baffle assembly to release the seal on the fire port. The staff then observes the fire in the boiler furnace through the fireproof glass and the fire port. After the observation is completed, the fire baffle assembly reseals the fire port, and the staff reseals the front end of the fire door frame with the fire door assembly. If the staff neglects to close the fire door assembly, the fire door assembly slowly and actively seals the front end of the fire door frame, and the heat in the furnace is lost through heat transfer. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is an isometric structural diagram of the fire door body of this utility model in the open state; Figure 4 This is a schematic diagram of the left-side structure of this utility model.

[0013] The following are marked in the attached diagram: 1. Base; 2. Fire door frame; 3. Fireproof glass; 4. Rotary shaft; 5. Fire baffle; 6. Handle No. 1; 7. Pivot pin; 8. Fire door body; 9. Handle No. 2; 10. Touch lock. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0015] like Figures 1 to 4 As shown, a fire observation door of this utility model includes a base 1, a fire observation door frame 2, and fireproof glass 3. The base 1 is provided with a fire observation opening, the fire observation door frame 2 is welded to the front end of the base 1, the fireproof glass 3 is provided at the front end of the fire observation door frame 2, and a fire observation door assembly is also included. The front end of the fire observation door frame 2 is inclined backward. The base 1 is hinged to the fire observation door assembly. A fire-blocking component is provided inside the fire observation door frame 2, and the fire-blocking component is used to seal the fire observation opening. like Figure 1 and Figure 2As shown, the fire-blocking assembly includes a rotating shaft 4, a fire-blocking plate 5, and a first handle 6. The rotating shaft 4 is rotatably installed inside the fire-viewing door frame 2. The fire-blocking plate 5 is installed on the rotating shaft 4 and seals the fire-viewing opening. A first handle 6 is provided at one end of the rotating shaft 4, and the first handle 6 and the fire-blocking plate 5 are set at a 90-degree angle. like Figure 2 , Figure 3 and Figure 4 As shown, the fire door assembly includes a pivot pin 7, a fire door body 8, and a second handle 9. The fire door body 8 is hinged to the base 1 via the pivot pin 7. The rear end of the fire door body 8 is tilted backward, and the front end of the fire door body 8 is provided with a second handle 9. The front end of the fire door body 8 is set in a vertical plane. like Figure 1 and Figure 4 As shown, it also includes a locking assembly. A locking assembly is provided between the fire door frame 2 and the fire door body 8. The locking assembly is a ball lock 10. The first handle 6 has a hollowed-out, extended design.

[0016] In this embodiment, under normal conditions, the base 1 is installed at the fire port of the boiler furnace by bolts. The fire door assembly seals the front end of the fire door frame 2. When the staff needs to observe the fire in the boiler furnace, they open the fire door body 8 through the second handle 9, and then operate the first handle 6 to release the fire baffle 5 from the fire port. The staff then observes the fire in the boiler furnace through the fireproof glass 3 and the fire port. After the observation is completed, the fire baffle 5 reseals the fire port under its own weight. The staff then reseals the fire door body 8 to the front end of the fire door frame 2. If the staff neglects to close the fire door body 8, the fire door body 8 will automatically close under the action of its upper and rearward center of gravity, preventing the loss of heat in the furnace through heat transfer.

[0017] The fireproof glass 3 for the fire-viewing door of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fire observation door, comprising a base (1), a fire observation door frame (2), and fireproof glass (3), wherein the base (1) is provided with a fire observation opening, the fire observation door frame (2) is welded to the front end of the base (1), and the fireproof glass (3) is provided at the front end of the fire observation door frame (2), characterized in that, It also includes a fire door assembly, wherein the front end of the fire door frame (2) is tilted backward, the base (1) is hinged to the fire door assembly, and a fire-blocking component is provided inside the fire door frame (2), which is used to seal the fire opening.

2. A fire-viewing door as described in claim 1, characterized in that, The fire-blocking assembly includes a rotating shaft (4), a fire-blocking plate (5), and a first handle (6). The rotating shaft (4) is rotatably installed inside the fire-viewing door frame (2). The fire-blocking plate (5) is installed on the rotating shaft (4) and seals the fire-viewing opening. A first handle (6) is provided at one end of the rotating shaft (4). The first handle (6) and the fire-blocking plate (5) are set at a 90-degree angle.

3. A fire-viewing door as described in claim 1, characterized in that, The fire door assembly includes a pivot pin (7), a fire door body (8), and a second handle (9). The fire door body (8) is hinged to the base (1) via the pivot pin (7). The rear end of the fire door body (8) is tilted backward. The front end of the fire door body (8) is provided with a second handle (9). The front end of the fire door body (8) is set in a vertical plane.

4. A fire-viewing door as described in claim 3, characterized in that, It also includes a locking assembly, wherein a locking assembly is provided between the fire door frame (2) and the fire door body (8), and the locking assembly is a ball lock (10).

5. A fire-viewing door as described in claim 2, characterized in that, The first handle (6) is a hollowed-out extended design.

6. A fire-viewing door as described in claim 1, characterized in that, A soft sealing strip is provided between the fireproof glass and the fire observation door frame (2).

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