Flame arrester convenient to install

Abstract

The utility model discloses a flame arrester convenient to install. The flame arrester comprises a flame arrester main body, the end part shell is arranged at the end part of the flame arrester main body, and the end part of the end part shell is fixedly connected with a connecting flange plate; the positioning ring is arranged on the outer side of the connecting flange plate in a lifting mode and used for being arranged on the outer side of the connecting flange plate and the mounting pipeline in a sleeving mode for positioning; the utility model has the beneficial effects that the two spliced flanges are sleeved and positioned by the positioning ring, so that accurate positioning between the flame arrester and the pipeline can be ensured, and the flame arrester and the pipeline can be accurately butted and keep correct positions and directions; the positioning ring is clamped on the outer side of the pipeline flange so that stable fixation can be provided, the flame arrester is prevented from deviating in the installation process, installation personnel can more easily connect the flame arrester with the pipeline, and the installation time and manpower are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame arresters, in particular to a flame arrester which is easy to install. Background Art

[0002] Flame arrester is a safety device, mainly used to prevent the spread of flames of flammable gases and flammable liquid vapors. It is usually installed in pipelines that transport flammable gases or on ventilated tanks to prevent flames (deflagration or detonation) from spreading through the pipeline. The flame arrester consists of a flame arrester core, a flame arrester shell and accessories. The flame arrester core is the main component to prevent the spread of flames. The commonly used ones are metal mesh filter elements and corrugated filter elements.

[0003] The principle of flame arrester is to extinguish the flame due to heat loss when the flame passes through the narrow pores of the heat conductor. Flame arrester is also commonly used on pipelines that transport flammable gases and pipelines with open flame equipment to prevent flashback accidents. However, it cannot prevent the open flame combustion of flammable gases and liquids in open combustion.

[0004] During the installation process, it is necessary to dock the flame arrester housing flange with the pipeline flange. During this process, corresponding auxiliary equipment or manual lifting is required. When using auxiliary equipment, the operation is complicated and the equipment occupies a mobile installation space. During manual lifting, the flame arrester is installed in multiple states such as vertical or horizontal, and its height is uncertain. During manual installation, it is inconvenient to cooperate with the operation and wastes manpower, and the flame arrester housing flange and the pipeline flange cannot be simply and conveniently docked. Utility Model Content

[0005] The purpose of the utility model is to provide a flame arrester which is easy to install, so as to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a flame arrester that is easy to install, comprising:

[0007] Flame arrester body;

[0008] An end shell, which is disposed at the end of the flame arrester body, and a connecting flange is fixedly connected to the end of the end shell;

[0009] A positioning ring, which can be raised and lowered and placed on the outside of the connecting flange, and is used to be sleeved on the connecting flange and the outside of the installation pipe for positioning;

[0010] The reset part is arranged at the bottom of the positioning ring and is used to apply external force to the positioning ring so that the positioning ring is always sleeved on the outside of the connecting flange.

[0011] Preferably, both ends of the flame arrester body are connected to the end shell through connectors.

[0012] Preferably, the connecting member comprises a screw and a nut, wherein the screw is equidistantly penetrated through the outer sides of the flame arrester body and the end shell, and the outer side of the screw is threadedly connected with a nut.

[0013] Preferably, the reset portion comprises a bottom ring sleeved on the outside of the end shell, the top of the bottom ring is supported and fixedly connected to a limit rod, and a reset spring is sleeved on the outside of the limit rod.

[0014] Preferably, a plurality of connecting rods are fixedly connected to the inner wall of the positioning ring at equal intervals, and ends of the connecting rods are fixedly connected to the connecting ring.

[0015] Preferably, the connecting ring is sleeved on the outer side of the end shell, and a limiting hole is provided in the middle of the connecting ring.

[0016] Preferably, the limiting rod is slidably connected to the limiting hole.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the positioning ring fits and positions the two spliced ​​flanges, which can ensure the accurate positioning between the flame arrester and the pipeline, so that they can be precisely docked and maintain the correct position and direction; the positioning ring is clamped on the outer side of the pipeline flange to provide a firm fixation, preventing the flame arrester from shifting during the installation process, and the installer can more easily connect the flame arrester to the pipeline, saving installation time and labor costs; when the flame arrester needs to be replaced or maintained, the positioning ring makes it easier to disassemble and reinstall the flame arrester without the need for additional auxiliary support equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connecting flange of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the positioning ring of the utility model;

[0021] Figure 4 This is an enlarged view of point A of the utility model;

[0022] Figure 5 It is an enlarged view of point B of the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the utility model when installed.

[0024] In the figure: 1. flame arrester body; 2. end shell; 3. connecting flange; 4. bottom ring; 5. connecting ring; 6. positioning ring; 7. connecting rod; 8. limiting hole; 9. limiting rod; 10. reset spring; 11. connecting piece. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 , the utility model provides a technical solution:

[0027] A flame arrester that is easy to install, comprising: a flame arrester body 1; an end shell 2 fixedly installed at the end of the flame arrester body 1, and a connecting flange 3 fixedly connected to the end of the end shell 2; a positioning ring 6 that can be raised and lowered and placed on the outside of the connecting flange 3, and used to be sleeved on the connecting flange 3 and the outside of the installation pipeline for positioning; a reset portion is arranged at the bottom of the positioning ring 6, and is used to apply an external force to the positioning ring 6 so that it is always sleeved on the outside of the connecting flange 3.

[0028] It should be noted that when the flame arrester of the utility model needs to be installed, the positioning ring 6 is pressed toward the middle of the flame arrester body 1 with two hands so that the positioning ring 6 slides to the bottom of the connecting flange 3, and then the connecting flange 3 is aligned with the pipe to be connected, so that the connecting flange 3 is aligned with the flange of the pipe. At this time, the positioning ring 6 is loosened, and under the action of the reset spring 10 of the reset part, the positioning ring 6 is reset by elastic force, and the positioning ring 6 is sleeved on the outer side of the flange of the connecting flange 3 and the pipe and makes the flange axis of the connecting flange 3 and the pipe in the same straight line, so as to position the flame arrester and the pipe, and then the connecting flange 3 is connected to the flange of the pipe by bolts.

[0029] like Figure 1 , 2 As shown in Figure 6, both ends of the flame arrester body 1 are connected to the end shell 2 through a connecting piece 11. The connecting piece 11 includes a screw and a nut. The screw equidistantly penetrates the outer side of the flame arrester body 1 and the end shell 2, and the outer side of the screw is threadedly connected with a nut.

[0030] It should be noted that the flame arrester body 1 of the utility model includes an outer shell and a flame arrester core, the flame arrester core is installed inside the outer shell, and end shells 2 are installed at both ends of the outer shell. The screw rod is equidistantly passed through the outer side of the outer shell and the end shell 2, and the two ends of the screw rod are fastened by nuts, so as to complete the assembly of the flame arrester body 1 and the end shell 2.

[0031] like Figure 3 , 4As shown in , 5 and 6, the reset part includes a bottom ring 4 which is sleeved on the outside of the end shell body 2, the top of the bottom ring 4 is fixedly connected to a limit rod 9, the outside of the limit rod 9 is sleeved with a reset spring 10, a plurality of connecting rods 7 are fixedly connected to the inner wall of the positioning ring 6 at equal intervals, the ends of the connecting rods 7 are fixedly connected to the connecting ring 5, the connecting ring 5 is sleeved on the outside of the end shell body 2, and a limit hole 8 is opened in the middle of the connecting ring 5, and the limit rod 9 is slidably connected to the limit hole 8.

[0032] It should be noted that, according to the utility model, when the positioning ring 6 is pressed downward, the positioning ring 6 presses the reset spring 10 downward through the connecting ring 5, so that the reset spring 10 is deformed, and the positioning ring 6 loses the external force exerting pressure on it. Under the action of the reset spring 10, the connecting ring 5 drives the positioning ring 6 to move to both ends through the connecting rod 7, so that the positioning ring 6 is sleeved on the outside of the connecting flange 3 and the pipeline flange. Under the restraining action of the positioning ring 6, the connecting flange 3 and the pipeline flange cannot be displaced, and then the flame arrester body 1 is rotated so that the mounting hole of the connecting flange 3 corresponds to the flange mounting hole of the pipeline, and then fixed by bolts.

[0033] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame arrester that is easy to install, characterized in that: include: Flame arrester body (1); An end shell (2), the end shell (2) being disposed at the end of the flame arrester body (1), and a connecting flange (3) being fixedly connected to the end of the end shell (2); A positioning ring (6), which can be raised and lowered and placed on the outside of the connecting flange (3) and is used to be sleeved on the connecting flange (3) and the outside of the installation pipeline for positioning; The resetting part is arranged at the bottom of the positioning ring (6) and is used to apply external force to the positioning ring (6) so that the positioning ring (6) is always sleeved on the outside of the connecting flange (3).

2. A flame arrester that is easy to install according to claim 1, characterized in that: Both ends of the flame arrester body (1) are connected to the end shell (2) via connecting pieces (11).

3. A flame arrester that is easy to install according to claim 2, characterized in that: The connecting piece (11) comprises a screw and a nut. The screw is equidistantly passed through the outer sides of the flame arrester body (1) and the end shell (2). The outer side of the screw is threadedly connected to the nut.

4. The flame arrester that is easy to install according to claim 1, characterized in that: The reset portion comprises a bottom ring (4) sleeved on the outside of the end shell (2), the top of the bottom ring (4) is supported and fixedly connected to a limit rod (9), and a reset spring (10) is sleeved on the outside of the limit rod (9).

5. A flame arrester that is easy to install according to claim 4, characterized in that: A plurality of connecting rods (7) are fixedly connected at equal distances to the inner wall of the positioning ring (6), and the ends of the connecting rods (7) are fixedly connected to the connecting ring (5).

6. A flame arrester that is easy to install according to claim 5, characterized in that: The connecting ring (5) is sleeved on the outer side of the end shell (2), and a limiting hole (8) is provided in the middle of the connecting ring (5).

7. A flame arrester that is easy to install according to claim 6, characterized in that: The limiting rod (9) is slidably connected to the limiting hole (8).

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