Anti-loosening protective cover for top cover bolt of gasification furnace

Abstract

The utility model discloses an anti-loosening protective cover for a top cover bolt of a gasification furnace, which relates to the field of gasification furnaces, comprises an outer protective shell, an end head, a connecting part and a pressing part, and is characterized in that the outer protective shell is sleeved on the outer side of the bolt and is fixedly connected to the top of a top cover; the end cover is arranged at an opening in the top of the outer protective shell, and the connecting part is used for connecting the end cover and the outer protective shell, so that the end cover is detachably mounted at the top end of the outer protective shell. Therefore, looseness of the bolt caused by stress relaxation and mechanical vibration is effectively restrained, sealing connection between the gasification furnace top cover and the combustion chamber is guaranteed, medium leakage is prevented, the bolt is completely sealed through the outer protective shell and the end cover, erosion of high-temperature corrosion or dust environment to the surface of the bolt is isolated, the service life of the bolt is prolonged, and the service life of the gasification furnace is prolonged. The loosening risk is reduced, and the safety and the stability of the gasification furnace are improved.

Description

Technical Field

[0001] This utility model belongs to the field of gasifiers, specifically relating to a protective cover for preventing loosening of bolts on the top cover of a gasifier. Background Technology

[0002] In modern industrial production, the gasifier, as a core piece of equipment, plays a crucial role in converting solid or liquid feedstocks into syngas. Its operation takes place in extreme environments of high temperature, high pressure, and strong corrosion, placing stringent demands on the stability and reliability of all its components. The sealing connection between the gasifier's top cover and the combustion chamber is typically secured using high-strength bolts (such as M64×520mm, made of 35CrMoA material).

[0003] In actual operation, the gasifier is subjected to high temperature, vibration, and alternating load conditions for a long time. The bolts are prone to loosening due to stress relaxation and mechanical vibration, leading to seal failure, medium leakage, or even safety accidents. In addition, long-term exposure to high temperature corrosion or dusty environments can easily corrode the bolt surface, reducing its mechanical strength, increasing the risk of loosening, and seriously affecting the safe and stable operation of the gasifier.

[0004] Currently, traditional anti-loosening measures (such as double nuts, spring washers, etc.) have limited effectiveness under extreme working conditions, while conventional protective covers can only isolate some environmental corrosion and cannot actively inhibit loosening.

[0005] Therefore, we propose a protective cover to prevent loosening of the bolts on the top cover of the gasifier to solve the above problems. Utility Model Content

[0006] In view of the current situation where traditional anti-loosening measures (such as double nuts, spring washers, etc.) have limited effectiveness under extreme working conditions, and conventional protective covers can only isolate some environmental corrosion and cannot actively inhibit loosening, this utility model provides an anti-loosening protective cover for the bolts of the gasifier top cover.

[0007] The solution adopted by this utility model to solve its technical problem is: a protective cover for preventing loosening of bolts on the top cover of a gasifier, including an outer protective shell, an end, a connecting component and a pressing component, characterized in that: the outer protective shell is sleeved on the outside of the bolt and fixedly connected to the top of the top cover;

[0008] The end cap is located at the top opening of the outer protective shell, and the connecting component is used to connect the end cap and the outer protective shell, so that the end cap can be detachably installed on the top of the outer protective shell.

[0009] The pressing component is mounted at the bottom of the end cap and extends into the outer protective housing for pressing down the screw head or nut.

[0010] Preferably, the outer protective shell is fixedly connected to the top cover by welding.

[0011] Preferably, the bottom end of the outer protective shell is fitted with a bottom ring, which is welded and fixed to the top of the top cover.

[0012] Preferably, the connecting component is a hook and loop fastener.

[0013] Preferably, the inner diameter of the outer protective shell is larger than the outer diameter of the bolt.

[0014] Preferably, the pressing component is a rigid pressing block.

[0015] Preferably, the pressing component includes a C-shaped pressure block and a threaded rod. The C-shaped pressure block has a through hole extending from top to bottom, and a fixing nut is welded and fixed to its top. The threaded rod is welded and fixed to the bottom of the end cap and is threadedly connected to the fixing nut.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model effectively suppresses the loosening of bolts caused by stress relaxation and mechanical vibration by setting a pressing component at the bottom of the end cover to apply continuous downward pressure to the bolt head or nut, thereby ensuring the sealed connection between the gasifier top cover and the combustion chamber, preventing medium leakage. Furthermore, the outer protective shell and end cover completely seal the bolts, isolating them from high-temperature corrosion or dust environment erosion, extending the service life of the bolts, reducing the risk of loosening, and improving the safety and stability of the gasifier.

[0018] 2. This utility model uses a snap-on end cap design to enable quick opening and closing of the end cap. When it is necessary to inspect, disassemble, or periodically tighten the bolts, it is not necessary to disassemble the entire protective device. The bolts can be easily accessed simply by opening the snap and removing the end cap.

[0019] 3. This utility model allows for precise adjustment of the position of the C-shaped pressure block by rotating it, so that the C-shaped pressure block contacts the bolt head or nut, making it suitable for bolts of different sizes and highly versatile. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the outer protective shell and end cap of this utility model.

[0022] In the diagram: 1 outer protective shell, 2 bottom ring, 3 buckle, 4 end cap, 51 threaded rod, 52 fixing nut, 53 C-shaped pressure block. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1-2This utility model provides a technical solution for a protective cover to prevent loosening of bolts on the top cover of a gasifier:

[0025] Example 1:

[0026] according to Figure 1 and Figure 2 As shown, it includes an outer protective shell 1, an end, a connecting component, and a pressing component. The inner diameter of the outer protective shell 1 is larger than the outer diameter of the bolt, allowing the socket wrench to be inserted into the outer protective shell 1 to disassemble the bolt when needed. The outer protective shell 1 is fitted on the outside of the bolt and welded to the top of the top cover. A bottom ring 2 is fitted on the bottom end of the outer protective shell 1 and welded to the top of the top cover.

[0027] The end cap 4 is located at the top opening of the outer protective shell 1. There are two connecting parts, located on the left and right sides of the outer protective shell 1 respectively. The connecting parts are latches 3, which are used to connect the end cap 4 and the outer protective shell 1. The design of the end cap 4 connected by the latches 3 enables quick disassembly of the end cap 4. When it is necessary to inspect, disassemble or periodically tighten the bolts, it is not necessary to disassemble the entire protective device. The bolts can be easily accessed by simply opening the latches 3 and removing the end cap 4.

[0028] The pressing component is installed at the bottom of the end cover 4 and extends into the outer protective shell 1. It applies continuous downward pressure to the bolt head or nut, thereby effectively suppressing the loosening of the bolt due to stress relaxation and mechanical vibration, ensuring the sealed connection between the gasifier top cover and the combustion chamber, preventing media leakage. Furthermore, the outer protective shell 1 and the end cover 4 completely seal the bolt, isolating the bolt surface from high-temperature corrosion or dust environment, extending the service life of the bolt, reducing the risk of loosening, and improving the safety and stability of the gasifier.

[0029] In practical use, the protective cover for preventing loosening of the bolts on the top cover of a gasifier according to this utility model is first fitted onto the outside of the bolt with the outer protective shell 1. Note that the inner diameter of the outer protective shell 1 should be larger than the outer diameter of the bolt to ensure that the socket wrench can be inserted. Then, the bottom ring 2 is fitted onto the bottom end of the outer protective shell 1. Then, the outer protective shell 1 and the bottom ring 2 are welded and fixed together to the top of the top cover. After that, the end cap 4 is placed at the top opening of the outer protective shell 1. At the same time, the pressing component contacts the bolt head or nut. Finally, the end cap 4 is connected to the outer protective shell 1 with two buckles 3. The buckles 3 are fastened to ensure that the end cap 4 is firmly fixed on the outer protective shell 1. The pressing component applies continuous downward pressure to the bolt head or nut.

[0030] Example 2:

[0031] Based on Embodiment 1, the difference is as follows: the pressing component is a rigid pressure block.

[0032] Example 3:

[0033] Based on Example 1, the differences are as follows: Figure 2 As shown, the pressing component includes a C-shaped pressure block 53 and a threaded rod 51. The C-shaped pressure block 53 has a through hole extending from top to bottom, which is used to accommodate the bolt body or threaded rod 51. A fixing nut 52 is welded and fixed to its top. The threaded rod 51 is welded and fixed to the bottom of the end cover 4 and is threadedly connected to the fixing nut 52. By rotating the C-shaped pressure block 53, the position of the C-shaped pressure block 53 can be precisely adjusted so that the C-shaped pressure block 53 contacts the bolt head or nut. It is suitable for bolts of different sizes and has strong versatility.

Claims

1. A protective cover for preventing loosening of bolts on the top cover of a gasifier, comprising an outer protective shell, an end cap, a connecting component, and a pressing component, characterized in that: The outer protective shell is fitted over the outside of the bolt and fixedly connected to the top of the top cover; The end cap is located at the top opening of the outer protective shell, and the connecting component is used to connect the end cap and the outer protective shell, so that the end cap can be detachably installed on the top of the outer protective shell. The pressing component is mounted at the bottom of the end cap and extends into the outer protective housing for pressing down the screw head or nut.

2. The gasifier top cover bolt anti-loosening protective cover according to claim 1, characterized in that: The outer protective shell is fixedly connected to the top cover by welding.

3. The gasifier top cover bolt anti-loosening protective cover according to claim 2, characterized in that: The bottom of the outer protective shell is fitted with a bottom ring, which is welded and fixed to the top of the top cover.

4. The gasifier top cover bolt anti-loosening protective cover according to claim 1, characterized in that: The connecting component is a buckle.

5. The gasifier top cover bolt anti-loosening protective cover according to claim 1, characterized in that: The inner diameter of the outer protective shell is larger than the outer diameter of the bolt.

6. The gasifier top cover bolt anti-loosening protective cover according to claim 1, characterized in that: The pressing component is a rigid pressing block.

7. The gasifier top cover bolt anti-loosening protective cover according to claim 1, characterized in that: The pressing component includes a C-shaped pressure block and a threaded rod. The C-shaped pressure block has a through hole running vertically through it, and a fixing nut is welded and fixed to its top. The threaded rod is welded and fixed to the bottom of the end cap and is threadedly connected to the fixing nut.

Images