External movable observation window of petrochemical device heating furnace

By designing a movable external viewing window for the heating furnace of a petrochemical unit, using stainless steel and high-temperature resistant glass, the problems of unstable flame and safety risks were solved, improving the stability and safety of operation.

CN223896608UActive Publication Date: 2026-02-10山东裕龙石化有限公司
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Patent Information

Application Number
CN202520190319.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-02-10
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

The viewing windows of existing petrochemical plant heating furnaces are prone to flame instability during severe weather and fuel gas fluctuations, affecting operational safety, and the fixed structure increases the risk of personnel injury.

Method used

An external movable observation window for a petrochemical plant heating furnace was designed. It uses a fixed sleeve, insert plate, and fixed plate made of stainless steel, combined with high-temperature resistant glass, and a snap-fit ​​structure to realize a movable observation hole, reducing external air interference.

Benefits of technology

This technology prevents flame instability and backfire injuries during flame adjustment, improves operational safety, simplifies the observation process, and reduces the impact of external factors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an external movable observation window for a heating furnace of a petrochemical device, which aims to solve the problems of flame drift and people injury caused by tempering due to external air entering when flame of the heating furnace is adjusted, and comprises a fixed clamping sleeve, a fixed clamping sleeve, a movable clamping sleeve, a movable clamping sleeve and a fixed clamping sleeve, and the rear side surface of the fixed clamping sleeve is provided with a clamping groove matched and clamped with the outer edge of the observation window; the inserting plate is fixedly connected to the front side face of the fixed clamping sleeve, and an inserting groove with an opening in the upper end is formed in the inserting plate; the fixed plate is fixedly connected to the outer side of the insertion plate, and the outer side surface is fixedly connected with a handle; the high-temperature-resistant glass is connected into the insertion groove of the insertion plate in an up-down sliding manner; the fixed jacket and the fixed plate are provided with observation holes penetrating through the thickness directions of the fixed jacket and the fixed plate, fire observation operation is conducted through the device, the problems that when the flame of the heating furnace is adjusted, external air enters the device, flame drifting is caused, and tempering hurts people are solved, meanwhile, the device further avoids the influence on operation of fuel gas, an air door and the like in the fire observation process, and the service life of the heating furnace is prolonged. And the interference of external factors is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum chemical industry, especially relates to a petrochemical device heating furnace external movable fire window. BACKGROUND

[0002] When the petrochemical device heating furnace works, the color, shape, length and stability of the flame in the furnace can be directly observed through the fire window, and the operator can adjust the fuel flow and air ratio (such as damper opening) according to the flame state in real time to optimize the combustion efficiency.

[0003] In the prior art, the fire window is generally of fixed structure, and when the combustion is unstable under adverse weather conditions and when the fuel gas fluctuates greatly, accidents are prone to occur when personnel perform the fire observation operation, and the oxygen content and negative pressure in the furnace chamber are affected to some extent, which affects the operation stability to some extent. When performing the fire observation operation, the personnel need to wear protective masks and stand on one side of the fire window and slowly approach, which requires a high safety awareness of the operator, and slight negligence may cause accidents, especially during the start-up and shutdown period of the device. UTILITY MODEL CONTENT

[0004] The utility model provides a petrochemical device heating furnace external movable fire window to solve the problem of flame fluctuation and backfire accidents caused by external air entering during heating furnace flame adjustment, in order to achieve the above-mentioned purpose, the technical scheme is as follows:

[0005] A petrochemical device heating furnace external movable fire window, characterized by comprising:

[0006] A fixed jacket is provided with a clamping groove matched with the outer edge of the fire window on the rear side;

[0007] A plugboard is fixedly connected to the front side of the fixed jacket, and the plugboard is provided with a plug slot with an open upper end;

[0008] A fixed plate is fixedly connected to the outer side of the plugboard, and a handle is fixedly connected to the outer side surface;

[0009] A high-temperature-resistant glass is slidably connected inside the plug slot of the plugboard;

[0010] The fixed jacket and the fixed plate are both provided with observation holes penetrating through the thickness of the respective plates and corresponding to the position of the high-temperature-resistant glass.

[0011] Further, the fixed jacket, the plugboard and the fixed plate are all made of stainless steel plates.

[0012] Further, the handle surface is provided with a heat insulation sleeve.

[0013] Further, the plugboard is a U-shaped plate with an open upper end.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Using this device for flame observation can avoid problems such as flame instability and backfire injury caused by the entry of external air when adjusting the flame of the heating furnace. It also avoids the impact on the operation of fuel gas, dampers, etc. during the flame observation process, reducing interference from external factors.

[0016] 2. The overall structure is movable, making it easy to operate, and the high-temperature resistant glass is easy to disassemble and replace. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is an exploded view of the structure of this utility model.

[0019] Figure 3 for Figure 2 Another perspective of the explosion diagram

[0020] in:

[0021] 1-Fixed clip, 101-First observation hole, 102-Slot, 2-Insertion plate, 3-High temperature resistant glass, 4-Fixed plate, 401-Second observation hole, 5-Handle. Detailed Implementation

[0022] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0023] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the view direction or positional relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0024] In this embodiment, for ease of description, the processing direction of the sheet metal is taken as the front-to-back direction, and the width direction of the sheet metal is taken as the left-to-right direction.

[0025] like Figures 1-3The diagram shows an external movable viewing window for a petrochemical plant heating furnace, comprising a fixed sleeve 1, an insert plate 2, high-temperature resistant glass 3, and a fixing plate 4.

[0026] Specifically, the fixing sleeve 1 has a plate-like structure and is made of stainless steel. A first observation hole 101 is provided in the middle and distributed from front to back. A slot 102 is provided on the rear side. The fixing sleeve 1 can be engaged with the original fire window protrusion through the slot 102.

[0027] The insert plate 2 has a U-shaped plate structure and is made of stainless steel plate. The insert plate 2 is welded to the front side of the fixing sleeve 1, and the U-shaped opening size of the insert plate 2 is the same as the size of the high-temperature resistant glass 3. The high-temperature resistant glass 3 can slide up and down and be connected to the U-shaped opening of the insert plate 2.

[0028] The fixing plate 4 is also made of stainless steel and is welded to the front side of the insert plate 2. A second observation hole 401 is provided in the middle. A set of handles 5 is welded on the left and right sides of the front end face. A heat insulation sleeve (not shown in the figure) is provided on the surface of the handles 5.

[0029] In addition, the first observation hole 101 and the second observation hole 401 are the same size, and both are slightly smaller than the size of the high-temperature resistant glass 3, so that the high-temperature resistant glass 3 set in the insert plate 2 can be separated and limited by the fixing plate 4 and the fixing sleeve 1.

[0030] When using this device, first open the observation window of the heating furnace. The operator stands at a certain distance and installs the device into the protrusion of the original observation window through the fixing clip 1. Then, the observation operation and adjustment of the heating furnace can be carried out. After the observation is completed, the operator holds the handle 5 with both hands to remove the device and close the sealing door of the original observation window.

[0031] 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 can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. An externally mounted movable observation window for a petrochemical plant heating furnace, characterized in that, include: The fixed sleeve has a slot on the rear side that engages with the outer edge of the viewing window; The insert plate is fixedly connected to the front side of the fixed sleeve, and the insert plate is provided with a slot with an opening at the top. A fixing plate is fixedly connected to the outside of the insertion plate, and a handle is fixedly connected to the outer side; High-temperature resistant glass, which is slidably connected to the slot of the insert plate. Both the fixing sleeve and the fixing plate are provided with observation holes that run through the thickness direction of their respective plates and are distributed corresponding to the positions of the high-temperature resistant glass.

2. The external movable observation window for the heating furnace of a petrochemical plant according to claim 1, characterized in that, The fixing sleeve, insert plate, and fixing plate are all made of stainless steel.

3. The external movable observation window for the heating furnace of a petrochemical plant according to claim 1, characterized in that, The handle surface is provided with a heat insulation sleeve.

4. The external movable observation window for the heating furnace of a petrochemical plant according to claim 1, characterized in that, The insert plate is a U-shaped plate with an opening at the top.