A boiler explosion door

Abstract

The utility model provides a kind of boiler explosion door belongs to boiler door technical field, it includes door frame, door frame is equipped with door cover, one end of door cover is through door frame and is slidably connected with door frame, the top four ends of door frame are all fixed with connecting column, the top of connecting column is through door cover and is slidably connected with door cover, the top of connecting column is screw thread connection has nut, pressure spring is sleeved on the outside of connecting column, pressure spring is located between nut and door cover.The utility model has beneficial effect in that when the pressure inside boiler is too high, pressure exerts force on door cover, when pressure exceeds the elasticity of pressure spring, door cover will move backward, so that gap appears between door cover and door frame, pressure is discharged, when pressure decreases, door cover is adhered to door frame again by the force exerted by pressure spring, boiler is sealed, the use effect of boiler is guaranteed, the device is simple in structure, convenient to use, and strong in practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of boiler doors, specifically relating to a boiler explosion-proof door. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy. The original meaning of "boiler" refers to a water-filled container heated over a fire, while "furnace" refers to the place where fuel is burned. A boiler consists of two main parts: the boiler and the furnace. There are many types of boilers, which can be classified in various ways. For example, according to fuel type, they can be divided into coal-fired boilers, oil-fired boilers, gas-fired boilers, biomass boilers, and electric heating boilers; according to application, they can be divided into power plant boilers, industrial boilers, and domestic boilers; and according to structure, they can be divided into vertical boilers and horizontal boilers.

[0003] The hot water or steam produced in a boiler can directly provide the heat energy needed for industrial production and daily life. It can also be converted into mechanical energy through a steam power unit, or further converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, mainly used for domestic purposes, with some applications in industrial production. Boilers that produce steam are called steam boilers, often simply referred to as boilers. They are commonly used in thermal power plants, ships, locomotives, and industrial and mining enterprises. Special attention must be paid to safety during boiler operation. Boilers are pressure vessels; improper operation or equipment malfunction can lead to serious consequences such as explosions.

[0004] When using a boiler, it is necessary to pay attention to the internal pressure at all times. When the internal pressure of the boiler is too high, an explosion may occur inside the boiler, causing damage to the furnace, flue and pulverizing system, and affecting the use of the boiler. Therefore, a boiler explosion-proof door that can relieve pressure is needed. Utility Model Content

[0005] The purpose of this invention is to address the problem that when the internal pressure of a boiler is too high, an explosion may occur inside the boiler, causing damage to the furnace, flue, and pulverizing system, thus affecting the use of the boiler. This invention proposes a boiler explosion-proof door that can automatically open to release pressure when the internal pressure of the boiler is too high, thereby preventing damage to the boiler caused by excessive internal pressure.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a boiler explosion-proof door, including a door frame, a door cover installed on the door frame, one end of the door cover penetrating the door frame and slidably connected to the door frame, and connecting posts fixed at all four ends of the top of the door frame, the top of the connecting posts penetrating the door cover and slidably connected to the door cover, a nut threadedly connected to the top of the connecting posts, and a pressure spring fitted on the outside of the connecting posts, the pressure spring being located between the nut and the door cover. When the internal pressure of the boiler is too high, the pressure applies force to the door cover. When the pressure exceeds the elastic force of the pressure spring, the door cover will move backward, creating a gap between the door cover and the door frame to release the pressure. When the pressure decreases, the pressure spring applies force to make the door cover re-fit with the door frame, sealing the boiler and ensuring the boiler's performance. This device has a simple structure, is easy to use, and is highly practical.

[0007] Furthermore, the door cover is T-shaped overall.

[0008] Furthermore, the lower part of the door cover is inserted into the door frame.

[0009] Furthermore, the upper skirt of the door cover is slidably connected to the connecting column.

[0010] Furthermore, at least four fixing holes are provided on the door frame to facilitate the installation of the entire explosion-proof door.

[0011] Furthermore, a washer is provided between the nut and the pressure spring to block the pressure spring.

[0012] Furthermore, the side of the door cover located inside the boiler is coated with heat-resistant concrete.

[0013] Furthermore, the contact length between the door cover and the door frame is at least 5cm, and this contact length of at least 5cm can ensure the sealing effect of the door cover and door frame on the boiler.

[0014] As can be seen from the above technical solutions, this utility model has the following advantages:

[0015] When the internal pressure of the boiler is too high, the pressure exerts force on the door cover. When the pressure exceeds the elastic force of the pressure spring, the door cover will move backward, creating a gap between the door cover and the door frame to release the pressure. When the pressure decreases, the pressure spring applies force to make the door cover re-fit with the door frame, sealing the boiler and ensuring its performance. This device has a simple structure, is easy to use, and is highly practical. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0018] In the diagram: 1. Door frame; 2. Door cover; 3. Fixing hole; 4. Connecting post; 5. Compression spring; 6. Washer; 7. Nut. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] like Figure 1 As shown, this embodiment proposes a boiler explosion-proof door, including a door frame 1, a door cover 2 installed on the door frame 1, the side of the door cover 2 located inside the boiler being coated with heat-resistant concrete, one end of the door cover 2 penetrating the door frame 1 and slidably connected to the door frame 1, the contact length between the door cover 2 and the door frame 1 being at least 5cm, the contact length of at least 5cm can ensure the sealing effect of the door cover 2 and the door frame 1 on the boiler. The door cover 2 is generally T-shaped, the lower part of the door cover 2 is inserted into the door frame 1, and the top of the door frame 1 is fixed with connecting posts 4 at all four ends, the top of the connecting posts 4 penetrating the door cover 2 and slidably connected to the door cover 2, the upper skirt of the door cover 2 being slidably connected to the connecting posts 4, and at least four fixing holes 3 are provided on the door frame 1, through which the door cover 2 is slidably connected to the door frame 2. For easy installation of the entire explosion-proof door, a nut 7 is threaded onto the top of the connecting column 4, and a pressure spring 5 is fitted onto the outside of the connecting column 4. The pressure spring 5 is located between the nut 7 and the door cover 2, and a washer 6 is placed between the nut 7 and the pressure spring 5 to block the pressure spring 5. When the pressure inside the boiler is too high, the pressure exerts a force on the door cover 2. When the pressure exceeds the elastic force of the pressure spring 5, the door cover 2 will move backward, creating a gap between the door cover 2 and the door frame 1 to release the pressure. When the pressure decreases, the pressure spring 5 applies force to make the door cover 2 re-fit against the door frame 1, sealing the boiler and ensuring the boiler's performance. This device has a simple structure, is easy to use, and is highly practical.

[0021] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A boiler explosion-proof door, comprising a door frame (1), characterized in that, A door cover (2) is installed on the door frame (1). One end of the door cover (2) passes through the door frame (1) and is slidably connected to the door frame (1). Connecting posts (4) are fixed at all four ends of the top of the door frame (1). The top of the connecting post (4) passes through the door cover (2) and is slidably connected to the door cover (2). A nut (7) is threaded on the top of the connecting post (4). A pressure spring (5) is fitted on the outside of the connecting post (4). The pressure spring (5) is located between the nut (7) and the door cover (2).

2. The boiler explosion-proof door according to claim 1, characterized in that, The door cover (2) is T-shaped as a whole.

3. The boiler explosion-proof door according to claim 2, characterized in that, The lower part of the door cover (2) is inserted into the door frame (1).

4. The boiler explosion-proof door according to claim 2, characterized in that, The upper skirt of the door cover (2) is slidably connected to the connecting column (4).

5. The boiler explosion-proof door according to claim 1, characterized in that, At least four fixing holes (3) are provided on the door frame (1).

6. The boiler explosion-proof door according to claim 1, characterized in that, A washer (6) is provided between the nut (7) and the pressure spring (5).

7. The boiler explosion-proof door according to claim 1, characterized in that, The door cover (2) is located inside the boiler and is coated with heat-resistant concrete on one side.

8. The boiler explosion-proof door according to claim 1, characterized in that, The contact length between the door cover (2) and the door frame (1) is at least 5cm.

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