Fire-retardant equipment for ventilating duct of oil separation tank
By installing detachable fire-retardant equipment at the opening of the ventilating duct of the oil-insulating tank, the problem that the ventilating duct of the flammable oil-insulating tank is easily caused by fire, and effective fire prevention and ventilation functions are achieved.
Patent Information
- Application Number
- CN202421211613.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The open structure of the existing oil barrier pool ventilation duct is prone to fire accidents, especially in oil barrier pools with flammable materials.
A removable fire arresting device is designed, including casing, clamps, breathable fire arresting nets and covers, which can be installed at the opening of the ventilation duct to prevent Mars from entering the oil barrier pool while maintaining ventilation function.
It effectively prevents Mars from entering the oil barrier pool and reduces fire risk. At the same time, it ensures ventilation function through breathable materials and gap design. It has a simple structure and convenient installation, making it suitable for old-fashioned ventilation ducts.
Smart Images
Figure CN222623576U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of oil and gas pipeline structures, and in particular relates to fire-blocking equipment for ventilation pipelines of oil traps. Background Art
[0002] The grease trap is a wastewater pretreatment structure that uses the density difference between oil droplets and water to produce a flotation effect to remove floating oil substances in oily wastewater. The structure of the grease trap is mostly horizontal flow. The oily wastewater enters the rectangular grease trap through the water distribution tank and flows slowly in the horizontal direction. During the flow, the oil floats to the water surface and is pushed into the oil collecting pipe by the oil collecting pipe or the oil scraper installed on the surface of the tank and flows into the dewatering tank. The heavy oil and other impurities that settle in the grease trap accumulate in the sludge bucket at the bottom of the tank and enter the sludge pipe through the sludge discharge pipe. The wastewater treated by the oil trap overflows into the drainage channel and is discharged outside the tank for subsequent treatment to remove emulsified oil and other pollutants.
[0003] Grease traps are often used as waste treatment and recovery structures in oil pipeline systems or oil depots. Especially for flammable grease traps, ventilation pipes connected to the external environment are provided. Such ventilation pipes are open structures. In order to prevent rainwater from entering, the pipe openings of the ventilation pipes are generally bent downward. However, if sparks enter the grease trap from the ventilation pipes, fires and other accidents may occur easily, especially with such open structure design. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the utility model provides a fire-blocking device specially designed for the ventilation pipe of the grease trap for collecting fuel. The simple structural design can be installed on various old-style open ventilation pipes, providing better fire-blocking and isolation safety performance on the basis of ensuring ventilation at a relatively low cost.
[0005] The technical solution adopted by the utility model is:
[0006] In a first aspect, the utility model discloses a fire-blocking device for a ventilation duct of a grease trap, which is sleeved on an opening of an open ventilation duct body outside the grease trap body and connected to an external environment, and comprises a sleeve and a clamp for clamping the sleeve sleeved on the outer surface of the ventilation duct opening from the outside;
[0007] The sleeve is provided with a breathable fire-blocking net for blocking the ventilation pipe body, and the sleeve is also provided with an outer cover which covers the fire-blocking net and is detachably connected to the sleeve. When the outer cover is connected to the sleeve, a gap is provided for air circulation.
[0008] In combination with the first aspect, the utility model provides a first implementation of the first aspect, wherein the outer cover is a circular structure with a radius greater than the outer diameter of the sleeve opening, and an annular gap is formed between the inner surface of the outer cover and the sleeve when the outer cover is connected to the sleeve.
[0009] In combination with the first aspect, the utility model provides a second implementation of the first aspect, wherein the fire-blocking net is a cylindrical honeycomb structure, and the outer wall of the fire-blocking net is in contact with the inner wall of the sleeve.
[0010] In combination with the first aspect, the utility model provides a third implementation manner of the first aspect, wherein the fire-blocking net is detachably connected to the sleeve via a clamp.
[0011] In combination with the third embodiment of the first aspect, the utility model provides a fourth embodiment of the first aspect, wherein the clamping member includes a first clamping member and a second clamping member, the second clamping member is clamped to the inner wall of the sleeve, the first clamping member is connected to the first clamping member by a fixing bolt, and the fire-blocking net is clamped between the first clamping member and the second clamping member.
[0012] In combination with the fourth embodiment of the first aspect, the utility model provides a fifth embodiment of the first aspect, wherein the second clamping member has a plurality of clamping ends, an annular groove is provided on the inner wall of the sleeve, and the clamping end is inserted into the annular groove for limiting and fixing.
[0013] In combination with the fourth embodiment of the first aspect, the utility model provides a sixth embodiment of the first aspect, wherein a retaining ring is provided on the inner wall of the sleeve, and when the sleeve is arranged on the opening of the ventilation tube body, an annular gap is formed between the retaining ring and the open end face of the ventilation tube body, and the second clamping part has a clamping end which is inserted into the annular gap to clamp and limit the position.
[0014] In combination with the fourth embodiment of the first aspect, the utility model provides a seventh embodiment of the first aspect, wherein the first clamp and the second clamp both have through holes in the middle for the fixing screw to pass through, and are tightened and fixed by bolts provided on the fixing bolts.
[0015] In combination with the fourth implementation of the first aspect, the utility model provides an eighth implementation of the first aspect, wherein the outer cover has a through hole for the fixing screw to pass through, and the outer cover is clamped and fixed by bolts.
[0016] The beneficial effects of the utility model are:
[0017] (1) The utility model has a simple structure and is easy to install through the design of several detachable parts. It is easy to adjust the materials and dimensions according to the size of the ventilation pipe and make it on-site for installation. The detachable installation method does not require electric or welding operations, which meets the requirements for fire and explosion prevention in the application scenario.
[0018] (2) The utility model can quickly set the fire barrier net in the sleeve by setting two clamp structures, and at the same time achieve a good limiting effect, and can be replaced regularly according to the service life. At the same time, through the structural design of the fire barrier net, it can also form a certain filtering and isolation effect, preventing mosquitoes from entering the grease trap through the ventilation pipe, further improving its safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a plan view of the fire-blocking device in the embodiment of the utility model applied to the ventilation pipe of the grease trap;
[0020] Figure 2 It is an axonometric diagram of the fire-blocking device in the embodiment of the utility model applied to the ventilation pipe of the grease trap;
[0021] Figure 3 It is an axonometric view of the complete installation of the fire-blocking device in the embodiment of the utility model;
[0022] Figure 4 It is a front view of the fully installed fire-blocking device in the embodiment of the utility model;
[0023] Figure 5 This utility model Figure 4 The schematic diagram of the cross section after cutting along the AA cutting line;
[0024] Figure 6 This utility model Figure 5 A local enlarged schematic diagram of B in FIG.
[0025] Figure 7 It is a schematic diagram of the embodiment of the utility model after the outer cover is disassembled;
[0026] Figure 8 This is a schematic diagram of an embodiment of the utility model after the fire-blocking net is removed;
[0027] Fig. 9 It is an exploded schematic diagram of some parts of the fire-blocking device in the embodiment of the utility model.
[0028] In the figure: 1-grease trap body, 2-ventilation pipe body, 3-outer cover, 4-casing, 5-clamp, 6-fixing screw, 7-fire barrier net, 8-first clamp, 9-second clamp, 10-retaining ring. DETAILED DESCRIPTION
[0029] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0033] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0034] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0036] Embodiment 1:
[0037] This embodiment provides a fire-blocking device for ventilation ducts of a grease trap. The grease traps targeted by this embodiment are set in places such as aviation fuel pipeline equipment pump stations, oil depots or gas stations, where there is high concentration of aviation kerosene, which is flammable and explosive. Many ventilation ducts of such grease traps are simply open downward. The fire-blocking device in this embodiment is set for such ventilation ducts.
[0038] Specifically, refer to Figure 1 and Figure 2 The fire-blocking device is arranged on a vertical ventilation pipe body 2 on the oil trap body 1 in the figure, and the fire-blocking device includes a sleeve 4 and a clamp 5. The sleeve 4 is a thin-walled pipe structure formed by bending and splicing metal or non-metallic plates, and has two openings of the same size, and the inner diameter of any opening is larger than the opening of the ventilation pipe body 2. When setting, any open end of the sleeve 4 is sleeved on the ventilation pipe body 2 and a part is extended, that is, the open end face of the ventilation pipe body 2 enters the sleeve 4 and stops near the center line position. At this time, a clamp 5 is set on the part of the sleeve 4 sleeved on the ventilation pipe body 2 to tighten it, so that the sleeve 4 can maintain a good connection stability with the ventilation pipe body 2.
[0039] A fire-blocking net 7 is also provided inside the sleeve 4. The fire-blocking net 7 is a structure composed of porous and loose breathable materials. It is attached to the inner wall of the sleeve 4 to form a barrier layer. The structure is usually made of inorganic materials. It can be ventilated, and open flames can be quickly extinguished after contacting the structure and cannot pass through the structure, thereby achieving a fire-blocking effect.
[0040] There are many ways to connect the fire-blocking net 7 to the sleeve 4. A detachable fixed connection can be achieved through additional clips. At the same time, an interference fit connection method can be adopted. A fire-blocking net 7 structure with a size larger than the cross-sectional size of the sleeve 4 is used, so that it can be deformed and inserted into the sleeve 4 for fixation.
[0041] An outer cover 3 is also provided on the port of the sleeve 4. The outer cover 3 is detachably connected to the sleeve 4 and has a notch. The notch is covered on the opening of the sleeve 4 and a gap is formed between the sleeve 4, so that a certain obstruction can be formed and the internal fire-blocking net 7 can be supported to achieve position limiting.
[0042] Furthermore, the fire-blocking net 7 is a columnar structure, including an internal fire-blocking core and inner and outer ring fixing structures. The inner and outer fixing structures are both made of metal parts, which clamp and fix the fire-blocking core from the inside and outside.
[0043] There are many ways to connect the fire-blocking net 7 and the sleeve 4:
[0044] As an implementation method, an inner wall of an opening on one side of the sleeve 4 is provided with an internal thread extending to a certain length, and an outer surface of the fire-blocking net 7 has an external thread, which can be installed by threaded matching, thereby achieving a stable connection state and facilitating disassembly and installation.
[0045] As an implementation method, a plurality of fixing clips are provided at equal intervals along a certain cross-section of the inner wall of the sleeve 4, and a convex structure is provided on the outer wall of the fire-blocking net 7. When installing, the fire-blocking net 7 is deformed to a certain extent by external force, and then moved to the corresponding clip to be released, so that the convex structure and the clip are pressed against each other to achieve the effect of clamping and limiting. The clip also includes a recessed groove with an inner concave design, which can be set in a plurality of points or in an annular structure design, that is, the sleeve 4 is subjected to sheet metal work to form an inner concave structure.
[0046] As an implementation method, a plurality of through holes are provided at corresponding positions on the outside of the sleeve 4, and a plurality of screw holes corresponding to the through holes are provided on the fire-blocking net 7. When the fire-blocking net 7 is moved to the corresponding cross-sectional position where the through holes are set, a fixed connection is achieved by inserting bolts from the outside of the sleeve 4.
[0047] As an embodiment, referring to Figure 3-Figure 9 , providing a simple installation method, that is, two clamps are arranged in the sleeve 4, a first clamp 8 and a second clamp 9.
[0048] Reference Figure 6-Figure 9 The first clamp 8 and the second clamp 9 are both independent structures. A retaining ring 10 is arranged in the sleeve 4. When installed, the retaining ring 10 in the sleeve 4 is close to the open end face of the ventilation pipe body 2 and forms a certain annular gap with the open end face of the ventilation pipe body 2.
[0049] The second clamp 9 is a cross-shaped structure with a circular portion in the middle and four support rods arranged around it. The end of each support rod has an enlarged end and an arc-shaped edge. In practice, the second clamp 9 is a metal deformable structure, specifically an integrated thin sheet formed by cutting a metal plate, which has a certain deformation performance. When installing, it can be first inserted into the sleeve 4 and abutted against the retaining ring 10, and then the sleeve 4 is sleeved on the ventilation pipe body 2 and clamped and fixed together with the retaining ring 10 through the open end surface of the ventilation pipe body 2.
[0050] A through hole is provided on the circular portion of the second clamping member 9, and a fixing screw 6 is provided on one side of the through hole. The fixing screw 6 passes through the inner side of the second clamping member 9 and extends outward. Figure 7 The fire-blocking net 7 also has a through hole in the middle. During installation, after the second clamp 9 is fixed, the fire-blocking net 7 is arranged in the sleeve 4 and the fixing screw 6 passes through the through hole in the middle of the fire-blocking net 7.
[0051] After the fire-blocking net 7 abuts against the surface of the second clamping member 9, the first clamping member 8 is arranged. The first clamping member 8 is a simple sheet structure with a certain length and a through hole in the middle. The first clamping member 8 is sleeved on the fixing screw 6 and abuts against the surface of the fire-blocking net 7. The first clamping member 8 is locked and fixed by a bolt, so that the fire-blocking net 7 is clamped and fixed by the first clamping member 8 and the second clamping member 9.
[0052] Furthermore, both the outer cover 3 and the sleeve 4 are cylindrical structures, and the inner diameter of the outer cover 3 is larger than the outer diameter of the sleeve 4, and can be covered from one side of the sleeve 4. A through hole is also provided in the middle of the outer cover 3. When installing, the through hole of the outer cover 3 is inserted into the fixing screw 6, and is also installed and fixed with bolts. There are two ways of installation and fixing, namely, two bolts are provided on both the inner and outer sides of the outer cover 3 for clamping and fixing, and the other is to make the outer cover 3 rest against the open end face of the sleeve 4 and tighten and fix it with bolts provided on the outside.
[0053] In the second installation and fixing method, the open end surface of the sleeve 4 is set to a serrated structure. When the outer cover 3 is against the opening of the sleeve 4, a ring-shaped discontinuous opening can be formed to facilitate air circulation.
[0054] At the same time, since the outer cover 3 is larger than the sleeve 4 and is connected and fixed by the axis, an annular gap of equal clearance is formed between the inner wall of the outer cover 3 and the outer wall of the sleeve 4.
[0055] The utility model is not limited to the above optional implementation modes, and anyone can derive other various forms of products under the enlightenment of the utility model. The above specific implementation modes should not be understood as limiting the protection scope of the utility model. The protection scope of the utility model shall be based on the definition in the claims, and the description can be used to interpret the claims.
Claims
1. A fire-blocking device for a grease trap ventilation duct, which is sleeved on the opening of an open ventilation duct body (2) outside the grease trap body (1) and connected to the external environment, and is characterized by: It comprises a sleeve (4) and a clamp (5) for clamping the sleeve (4) sleeved on the outer surface of the opening of the ventilation pipe body (2) from the outside; The sleeve (4) is provided with a breathable fire-blocking net (7) for blocking the ventilation pipe body (2); the sleeve (4) is also provided with an outer cover (3) for covering the fire-blocking net (7) and being detachably connected to the sleeve (4); when the outer cover (3) is connected to the sleeve (4), a gap is provided for air circulation.
2. The fire-blocking device for the ventilation duct of the grease trap according to claim 1, characterized in that: The outer cover (3) is a circular structure with a radius greater than the outer diameter of the opening of the sleeve (4); when the outer cover (3) and the sleeve (4) are connected, an annular gap is formed between the inner surface of the outer cover (3) and the sleeve (4).
3. The fire-blocking device for the ventilation duct of a grease trap according to claim 1, characterized in that: The fire-blocking net (7) is a cylindrical honeycomb structure, and the outer wall of the fire-blocking net (7) is in contact with the inner wall of the sleeve (4).
4. The fire-blocking device for the ventilation duct of a grease trap according to claim 1, characterized in that: The fire-blocking net (7) is detachably connected to the sleeve (4) via a clamp.
5. The fire-blocking device for the ventilation duct of a grease trap according to claim 4, characterized in that: The clamping member comprises a first clamping member (8) and a second clamping member (9), the second clamping member (9) being clamped with the inner wall of the sleeve (4), the first clamping member (8) being connected with the first clamping member (8) via a fixed bolt (6), and the fire-blocking net (7) being clamped between the first clamping member (8) and the second clamping member (9).
6. The fire-blocking device for the ventilation duct of the grease trap according to claim 5, characterized in that: The second clamping member (9) has a plurality of clamping ends, an annular groove is provided on the inner wall of the sleeve (4), and the clamping ends are inserted into the annular groove for position limiting and fixing.
7. The fire-blocking device for the ventilation duct of a grease trap according to claim 5, characterized in that: A retaining ring (10) is provided on the inner wall of the sleeve (4); when the sleeve (4) is arranged on the opening of the ventilation pipe body (2), an annular gap is formed between the retaining ring (10) and the open end surface of the ventilation pipe body (2); and the second clamping member (9) has a clamping end inserted into the annular gap for clamping and limiting.
8. The fire-blocking device for the ventilation duct of a grease trap according to claim 5, characterized in that: The first clamping member (8) and the second clamping member (9) both have through holes in the middle for the fixing screw (6) to pass through, and are tightened and fixed by bolts provided on the fixing bolt (6).
9. The fire-blocking device for the ventilation duct of a grease trap according to claim 8, characterized in that: The outer cover (3) has a through hole for the fixing screw (6) to pass through, and the outer cover (3) is clamped and fixed by bolts.