Flameless explosion venting device convenient to maintain

Abstract

The utility model relates to the technical field of explosion venting, and discloses a flameless explosion venting device convenient to maintain, which comprises an explosion venting cavity, an explosion venting plate assembly and a fire retardant assembly, the two ends of the explosion venting cavity are respectively connected with an explosion venting port and the fire retardant assembly through flanges, two U-shaped limiting plates are welded in the explosion venting cavity, the two limiting plates form a slot, and the two limiting plates are connected with the explosion venting cavity through flanges. The top of the explosion venting cavity is further provided with an insertion opening used for inserting the explosion venting plate assembly into the insertion groove, and a cover plate is fixedly installed on the insertion opening. The explosion venting plate assembly is composed of a bottom frame, an explosion venting plate and a pressing frame, a groove used for containing the explosion venting plate is formed in the bottom frame, and the explosion venting plate is tightly pressed in the bottom frame by the pressing frame through a plurality of screws. According to the explosion venting device, the explosion venting plate assembly is inserted into the insertion groove of the explosion venting cavity and is fixed by the cover plate, so that the explosion venting plate assembly can be quickly replaced, the whole explosion venting device does not need to be disassembled, time and labor are saved, and the maintenance efficiency of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion venting technology, and in particular to a flameless explosion venting device that is easy to maintain and is installed in an explosion-proof dust collector. Background Technology

[0002] Flameless explosion venting devices are used for protection against indoor dust explosions. They include a housing, an explosion vent plate, and a flame arrestor assembly. One end of the housing is connected to the explosion vent flange, the explosion vent plate is fixedly installed between the explosion vent and the housing, and the flame arrestor assembly is located at the other end of the housing to prevent flames from escaping. Existing flameless explosion venting devices have the following drawbacks:

[0003] After the explosion is vented, the entire explosion venting device needs to be disassembled before the explosion venting plate can be replaced, and then reinstalled, which is time-consuming and labor-intensive.

[0004] Based on this, this application provides a flameless explosion relief device that can quickly disassemble and assemble the explosion relief plate and is easy to maintain, in order to solve the shortcomings of existing flameless explosion relief devices. Utility Model Content

[0005] This invention aims to solve the technical problems existing in the prior art. Therefore, this invention provides a flameless explosion venting device that is easy to maintain, enabling rapid disassembly and assembly of the explosion venting plate, saving time and effort, and greatly shortening maintenance time.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A flameless explosion venting device that is easy to maintain is provided, comprising an explosion venting cavity, an explosion venting plate assembly, and a flame arrestor assembly, wherein: the two ends of the explosion venting cavity are respectively connected to the explosion venting port and the flame arrestor assembly via flanges; two U-shaped limiting plates are welded inside the explosion venting cavity, the two limiting plates forming a slot; the top of the explosion venting cavity is also provided with an insertion port for inserting the explosion venting plate assembly into the slot, and a cover plate is fixedly installed on the insertion port; the explosion venting plate assembly consists of a base frame, an explosion venting plate, and a pressure frame; the base frame is provided with a groove for placing the explosion venting plate, and the pressure frame presses the explosion venting plate into the base frame by a number of screws.

[0008] In some alternative implementations, the length of the insertion port is equal to the inner width of the explosion vent chamber, and its width is greater than the width of the slot.

[0009] In some alternative embodiments, the bottom of the cover plate is provided with a sealing gasket, and its two sides are fixedly connected to the explosion relief cavity by multiple screws.

[0010] In some alternative embodiments, the bottom of the cover plate is further provided with a slot that extends into the insertion port to limit the top of the explosion relief plate assembly.

[0011] In some optional embodiments, the groove of the bottom frame is provided with a plurality of protrusions for positioning the mounting holes on the explosion relief plate, and the pressure frame is provided with a countersunk hole relative to each protrusion, wherein the sum of the depth of the countersunk hole and the thickness of the explosion relief plate is greater than the height of the protrusion.

[0012] In some optional embodiments, the flame arrestor assembly includes a housing, a flame arrestor mesh, and a pressure cap. The end of the housing away from the explosion vent is provided with a flame vent that is inclined upward or downward. An arc-shaped flame arrestor mesh is fixedly installed on the flame vent by an arc-shaped pressure cap.

[0013] In some alternative embodiments, a cleaning port is also provided at the bottom of the box, and a sealing plate is fixedly installed on the cleaning port.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model adopts an installation method in which the explosion relief plate assembly is inserted into the slot of the explosion relief cavity and fixed by the cover plate, which realizes the quick replacement of the explosion relief plate assembly without removing the entire explosion relief device. This not only saves time and effort, but also greatly improves the maintenance efficiency of the equipment.

[0016] 2. Only two sets of the bottom frame and pressure frame of the explosion relief plate assembly need to be set up, which are backups for each other. During non-maintenance time, the removed explosion relief plate assembly can be replaced with a new explosion relief plate to form a backup explosion relief plate assembly, thereby reducing the cost of spare parts. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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, wherein:

[0018] Figure 1 This is an installation structure diagram of the easy-to-maintain flameless explosion venting device provided by this utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the explosion venting cavity is provided.

[0020] Figure 3 yes Figure 2 A top view of the explosion vent chamber (without cover);

[0021] Figure 4 This is a front view of the explosion relief plate assembly provided by this utility model;

[0022] Figure 5 This is a cross-sectional view of the explosion relief plate assembly provided by this utility model;

[0023] Figure 6 yes Figure 5 A diagram showing the state of the provided explosion relief panel assembly after the explosion relief panel ruptures.

[0024] Figure 7 This is a structural diagram of the flameless explosion venting device provided by this utility model after the explosion venting plate explodes.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1—Explosion relief cavity; 1.1—Insertion port; 2—Explosion relief plate assembly; 2.1—Base frame; 2.1.1

[0027] —Protruding post, 2.2—Explosion relief plate, 2.3—Pressure frame, 2.3.1—Counterhole, 3—Fire arrester assembly, 3.1

[0028] —Box body, 3.1.1—Cleaning port, 3.2—Flame arrestor mesh, 3.3—Clip cover, 4—Limiting plate, 5

[0029] —Cover plate, 5.1—Slot, 6—Sealing plate. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 of this utility model. The terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Example 1

[0035] As attached Figure 1 As shown, this embodiment provides a flameless explosion venting device that is easy to maintain, including an explosion venting cavity 1, an explosion venting plate assembly 2, and a flame arrestor assembly 3, wherein:

[0036] As attached Figure 1 As shown, the two ends of the explosion vent 1 are connected to the explosion vent and the flame arrestor 3 respectively via flanges, as shown in the attached figure. Figure 2 and attached Figure 3 As shown, two U-shaped limiting plates 4 (specifically, flat-bottomed U-shaped limiting plates) are welded inside the explosion venting cavity 1. The two limiting plates 4 form a slot. The top of the explosion venting cavity 1 is also provided with an insertion port 1.1 for inserting the explosion venting plate assembly 2 into the slot. A cover plate 5 is fixedly installed on the insertion port 1.1 to fix the explosion venting plate assembly and also to block the insertion port. The cover plate can be fixed to the explosion venting cavity with multiple screws on both sides.

[0037] Preferably, in this embodiment, the width of the explosion relief plate assembly 2 is equal to the width of the slot. After the explosion relief plate assembly is inserted into the slot, its stability can be guaranteed, preventing the problem of lateral movement.

[0038] Preferably, in this embodiment, the length of the insertion port 1.1 is equal to the inner width of the explosion relief cavity 1, so as to ensure that the explosion relief plate assembly 2 can be smoothly inserted into the slot. The width of the insertion port 1.1 is greater than the width of the slot, which is beneficial for the explosion relief plate assembly to be smoothly removed from the insertion port after explosion.

[0039] Preferably, the bottom of the cover plate 5 in this embodiment is provided with a sealing gasket (not shown in the figure) for sealing the insertion port. Furthermore, this embodiment also provides a slot 5.1 at the bottom of the cover plate 5 that extends into the insertion port 1.1, for limiting the top of the explosion relief plate assembly 2, thereby improving the stability of the installation structure of the explosion relief plate assembly.

[0040] As attached Figure 4 and attached Figure 5As shown, the explosion relief plate assembly 2 consists of a base frame 2.1, an explosion relief plate 2.2, and a pressure frame 2.3. The base frame 2.1 has a groove for placing the explosion relief plate 2.2, and the pressure frame 2.3 presses the explosion relief plate 2.2 into the base frame 2.1 using several screws. Preferably, in this embodiment, the groove of the base frame 2.1 has several protrusions 2.1.1 for positioning the mounting holes on the explosion relief plate 2.2. The pressure frame 2.3 has countersunk holes 2.3.1 opposite to each protrusion 2.1.1. The sum of the depth of the countersunk hole 2.3.1 and the thickness of the explosion relief plate 2.2 is greater than the height of the protrusion 2.1.1 to ensure that the pressure frame can press the explosion relief plate tightly. (See attached diagram) Figure 4 As shown, the explosion relief plate 2.2 in this embodiment is provided with intersecting pre-break grooves, so that after the explosion relief plate explodes, it will appear as follows: Figure 6 and attached Figure 7 As shown.

[0041] As attached Figure 1 As shown, the flame arrestor assembly 3 includes a housing 3.1, a flame arrestor mesh group 3.2, and a pressure cap 3.3. The housing 3.1 has a flame vent that is inclined upward or downward at one end away from the explosion vent chamber 1. An arc-shaped flame arrestor mesh group 3.2 is fixedly installed on the flame vent through an arc-shaped pressure cap 3.3. The flame arrestor mesh group is composed of multiple layers of stainless steel mesh and serves the purpose of flame arrest.

[0042] Preferably, in this embodiment, a cleaning port 3.1.1 is also provided at the bottom of the housing 3.1, and a sealing plate 6 is fixedly installed on the cleaning port 3.1.1 to facilitate cleaning the dust inside the housing through the cleaning port.

[0043] In practice, after the explosion relief plate detonates, as shown in the attached... Figure 7 As shown, the explosion vent assembly needs to be replaced. The replacement procedure is as follows:

[0044] First, remove the cover plate, then pull out the explosion vent plate assembly, insert the new explosion vent plate assembly, and finally fix the cover plate in the insertion port. This allows for quick replacement of the explosion vent plate assembly without disassembling the entire explosion venting device, saving time and effort and greatly improving equipment maintenance efficiency.

[0045] After replacing the explosion vent plate assembly, the pressure frame of the explosion vent plate assembly can be disassembled, the damaged explosion vent plate removed and a new explosion vent plate placed in place, and finally the pressure frame reset. Therefore, only two sets of the bottom frame and pressure frame of the explosion vent plate assembly need to be installed, serving as backups for each other. During non-maintenance periods, the removed explosion vent plate assembly can be replaced with a new explosion vent plate to form a spare explosion vent plate assembly, reducing the cost of spare parts.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flameless explosion venting device that is easy to maintain, characterized in that: Includes explosion venting chamber, explosion venting plate assembly, and flame arrestor assembly, wherein: The two ends of the explosion relief cavity are connected to the explosion relief port and the flame arrestor assembly respectively through flanges. Two "U"-shaped limiting plates are welded inside the explosion relief cavity. The two limiting plates form a slot. The top of the explosion relief cavity is also provided with an insertion port for inserting the explosion relief plate assembly into the slot. A cover plate is fixedly installed on the insertion port. The explosion relief plate assembly consists of a base frame, an explosion relief plate, and a pressure frame. The base frame has a groove for placing the explosion relief plate, and the pressure frame presses the explosion relief plate into the base frame with several screws.

2. The easy-to-maintain flameless explosion venting device according to claim 1, characterized in that: The length of the insertion port is equal to the inner width of the explosion venting cavity, and its width is greater than the width of the slot.

3. The easy-to-maintain flameless explosion venting device according to claim 2, characterized in that: The bottom of the cover plate is equipped with a sealing gasket, and its two sides are fixedly connected to the explosion relief cavity by multiple screws.

4. The easy-to-maintain flameless explosion venting device according to claim 1, characterized in that: The bottom of the cover plate is also provided with a slot for inserting into the insertion port, which is used to limit the top of the explosion relief plate assembly.

5. The easy-to-maintain flameless explosion venting device according to claim 1, characterized in that: The bottom frame has a groove with several protrusions for positioning the mounting holes on the explosion relief plate. The pressure frame has a countersunk hole relative to each protrusion, and the sum of the depth of the countersunk hole and the thickness of the explosion relief plate is greater than the height of the protrusion.

6. The easy-to-maintain flameless explosion venting device according to claim 1, characterized in that: The flame arrestor assembly includes a housing, a flame arrestor mesh, and a pressure cap. The housing has a flame vent that is inclined upwards or downwards at one end away from the explosion vent. An arc-shaped flame arrestor mesh is fixedly installed on the flame vent by an arc-shaped pressure cap.

7. The easy-to-maintain flameless explosion venting device according to claim 6, characterized in that: The bottom of the box is also provided with a cleaning port, and a sealing plate is fixedly installed on the cleaning port.

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