Fire-retardant filling crane pipe
By introducing a flame arrester, filter, and sealing components into the flame-arresting filling arm, the problems of flame arrester blockage and poor sealing are solved, achieving fire source blocking and media filtration, ensuring the safety of the filling process and the normal use of the equipment.
Patent Information
- Application Number
- CN202520516527.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing flame-arresting filling arms have problems such as flame arrester blockage, static electricity accumulation, and poor sealing, which can lead to fire or explosion safety hazards.
A flame-arresting filling arm was designed, comprising a tube body, a rotating head, a control valve, a flame arrester, a sleeve, a filter screen, and a sealing assembly. The flame arrester blocks the fire source, the filter screen filters impurities, and the sealing assembly ensures the airtightness of the connection to prevent the fire source and the medium from leaking.
It effectively blocks ignition sources from entering hazardous chemical vehicles, preventing fires or explosions, while filtering impurities to ensure safe equipment operation and environmental protection.
Smart Images
Figure CN223892438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loading arm technology, and in particular to a flame-retardant filling loading arm. Background Technology
[0002] Flame-arrested filling arms (also known as fireproof or explosion-proof loading arms) are specialized devices used in liquid or gas filling processes, primarily in petrochemical, oil storage, and oil loading / unloading applications. Their design aims to prevent fires or explosions during filling due to equipment malfunctions or external factors (such as fires or electrostatic discharge), ensuring the safety of the filling process. Flame-arrested filling arms are typically equipped with flame arresters and anti-static facilities, effectively reducing the risk of ignition spread.
[0003] With the increasing volume of chemicals, petroleum products, and other hazardous chemicals (hazardous chemicals) during transportation and filling, the related safety technical requirements are becoming increasingly stringent. During the filling process, fires or explosions caused by static electricity, electric sparks, and other ignition sources, especially in flammable and explosive environments, pose a significant threat to the safety of personnel and equipment. However, safety hazards still exist, such as blockage of flame arresters, static electricity accumulation, and poor sealing. Therefore, a flame-arresting filling loading arm is proposed to address these issues. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a flame-arresting filling arm, which aims to improve the safety hazards that still exist in the prior art, such as the blockage of the flame arrester, static electricity accumulation and poor sealing.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flame-arresting filling loading arm, comprising a pipe body, a rotating head connected to the corner of the pipe body, a control valve installed on the right side of the pipe body, a flame arrester installed on the right side of the control valve, a sleeve installed on the right side of the flame arrester, an installation plate being snapped into the sleeve, a filter screen being installed inside the installation plate, and through holes being provided on both the front and rear sides of the upper side of the installation plate, with a positioning component fixedly connected inside the through holes. The positioning component is used to securely install the installation plate inside the sleeve, and both the flame arrester and the sleeve are installed outside the pipe body.
[0006] As a further description of the above technical solution:
[0007] The input end of the pipe is fixedly connected to a connector, and a sealing ring is installed inside the connector. The sealing ring is fixedly connected to the upper and lower sides on both sides. The connector is fixedly connected to an outer cylinder on both the front and rear sides. An extrusion assembly is slidably connected inside the outer cylinder. The extrusion assembly is used to make the sealing ring fit tightly against the filling pipe of the tanker.
[0008] As a further description of the above technical solution:
[0009] The positioning component includes a spring, one end of which is fixedly connected to the inside of the through hole, and the other end of which is fixedly connected to a positioning head, which is slidably connected to the inside of the sleeve and the through hole.
[0010] As a further description of the above technical solution:
[0011] The extrusion assembly includes a pull rod that is slidably connected inside the outer cylinder. A stop block is fixedly connected to the near end of the pull rod, and a spring is sleeved on the outer side of the pull rod.
[0012] As a further description of the above technical solution:
[0013] The connector has insertion holes on both the front and rear sides inside. The abutment is slidably connected to the insertion hole and the inside of the outer cylinder. The side of the abutment that is close to the outer side of the sealing ring is in contact with the outside of the sealing ring.
[0014] As a further description of the above technical solution:
[0015] One end of the second spring is fixedly connected to the inner wall of the outer cylinder, and the other end of the second spring is fixedly connected to the side close to the protruding end of the pull rod.
[0016] As a further description of the above technical solution:
[0017] A handle is fixedly connected to the upper part of the mounting plate.
[0018] As a further description of the above technical solution:
[0019] The filter screen is installed inside the tube.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, if the pipeline combustion is caused by static electricity during the filling process, the flame arrester blocks the fire source, and at the same time the control valve is closed, thus providing a double blockage of the fire source and preventing the fire source from entering the hazardous chemical vehicle. When the medium enters the pipe body, it is filtered by the filter screen to avoid damaging the flame arrester and control valve. This effectively blocks the fire source when the pipeline combustion occurs during the filling of hazardous chemicals, preventing the fire source from entering the hazardous chemical vehicle and causing a major accident. At the same time, it filters impurities in the medium, protecting the flame arrester and control valve.
[0022] 2. In this utility model, by aligning the connector with the filling pipe of the tank truck and inserting it, the connection between the pipe body and the filling pipe is sealed. Under the pressure of the spring, the abutment is squeezed to make the sealing ring tightly fit against the outside of the interface, further ensuring the sealing performance of the connection. This effectively prevents the leakage of the medium inside the tank truck, which could cause workers to inhale the harmful odor in the medium or to suffer burns from skin contact with the medium, and also avoids pollution of the external environment. Attached Figure Description
[0023] Figure 1 This is a perspective view of a flame-retardant filling arm proposed in this utility model.
[0024] Figure 2 This is a schematic diagram of the internal structure of a flame-retardant filling arm connector proposed in this utility model.
[0025] Figure 3 This is a schematic diagram of the filter structure of a flame-retardant filling arm proposed in this utility model.
[0026] Legend:
[0027] 1. Pipe body; 2. Rotating head; 3. Control valve; 4. Flame arrester; 5. Sleeve; 501. Mounting plate; 502. Handle; 503. Filter screen; 504. Through hole; 505. Spring 1; 506. Positioning head; 6. Connecting head; 601. Sealing ring; 602. Clamping block; 603. Outer cylinder; 604. Pull rod; 605. Abutment block; 606. Spring 2; 607. Insertion hole. Detailed Implementation
[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Reference Figures 1-3This utility model provides an embodiment of a flame-arresting filling loading arm, comprising a pipe body 1, a rotating head 2 connected to the corner of the pipe body 1, which allows the loading arm to be flexibly rotated to adjust its angle and position, a control valve 3 installed on the right side of the pipe body 1 for conveying and blocking the medium in the loading arm, a flame arrester 4 installed on the right side of the control valve 3, which blocks and extinguishes itself when a fire source appears in the pipeline, a sleeve 5 installed on the right side of the flame arrester 4, an installation plate 501 is snapped into the sleeve 5, a filter screen 503 is installed inside the installation plate 501 to filter impurities in the medium to avoid affecting the operation of the equipment and the purity of the medium, through holes 504 are opened on the front and back of the upper side of the installation plate 501, a positioning component is fixedly connected inside the through hole 504, the positioning component is used to firmly install the installation plate 501 inside the sleeve 5, and the flame arrester 4 and the sleeve 5 are both installed outside the pipe body 1;
[0030] The positioning assembly includes a spring 505, one end of which is fixedly connected to the inside of the through hole 504, and the other end of which is fixedly connected to a positioning head 506. The positioning head 506 is slidably connected to the inside of the sleeve 5 and the through hole 504. A handle 502 is fixedly connected to the upper part of the mounting plate 501. A filter screen 503 is installed inside the tube body 1.
[0031] When a pipeline fire occurs due to static electricity during the filling process, the flame arrester 4 blocks the ignition source and simultaneously closes the control valve 3, further ensuring that the ignition source does not enter the hazardous materials vehicle. Once the medium enters the pipe body 1 and reaches the filter screen 503, impurities in the medium are filtered out by the filter screen 503 to prevent damage to the flame arrester 4 and control valve 3, thus ensuring normal equipment operation. When cleaning the filter screen 503 is required, the handle 502 is pulled, causing it to slide inside the sleeve 5. The movement of the mounting plate 501 moves the positioning head 506. The positioning head 506 is pressed by the edge of the hole opened in the sleeve 5, causing the positioning head 506 to move and enter the interior of the through hole 504. It then presses the spring 505, causing it to rebound. As the positioning head 506 separates from the sleeve 5, the filter screen 503 can be removed for cleaning. This effectively blocks the fire source when the pipeline burns during the filling of hazardous chemicals, preventing the fire source from entering the hazardous chemical vehicle and causing a major accident. At the same time, it filters impurities in the medium, protects the flame arrester 4 and the control valve 3, and facilitates the cleaning of the filter screen 503, ensuring the normal use of the equipment.
[0032] Reference Figures 1-2A connector 6 is fixedly connected to the outside of the input end of the pipe body 1. A sealing ring 601 is installed inside the connector 6. A locking block 602 is fixedly connected to the upper and lower sides of the outer side of the sealing ring 601. An outer cylinder 603 is fixedly connected to the front and rear sides of the outside of the connector 6. A squeezing assembly is slidably connected inside the outer cylinder 603. The squeezing assembly is used to make the sealing ring 601 fit tightly against the filling pipe opening of the tank truck.
[0033] The extrusion assembly includes a pull rod 604, which is slidably connected to the inside of the outer cylinder 603. A stop block 605 is fixedly connected to the near end of the pull rod 604. A second spring 606 is sleeved on the outer side of the pull rod 604. Insertion holes 607 are opened on the front and rear sides of the inside of the connector 6. The stop block 605 is slidably connected to the insertion hole 607 and the inside of the outer cylinder 603. The near side of the stop block 605 is in contact with the outer side of the sealing ring 601. One end of the second spring 606 is fixedly connected to the inner wall of the outer cylinder 603, and the other end of the second spring 606 is fixedly connected to the near side of the protruding end of the pull rod 604.
[0034] By aligning the connector 6 with the tanker filling pipe and inserting it into the connector 6, the sealing of the connection between the pipe body 1 and the tanker filling pipe is ensured. Under the pressure of the spring 606, the abutment 605 tightly presses the sealing ring 601 against the outside of the interface between the tanker filling pipe and the pipe body 1, further ensuring the sealing of the connection. This effectively prevents the leakage of the medium inside the tanker, which could cause workers to inhale harmful odors from the medium or suffer burns from skin contact with the medium, and also avoids contamination of the external environment.
[0035] Working principle: When the device is needed, the connector 6 is inserted into the filling pipe of the tank truck to ensure that the connection between the pipe body 1 and the filling pipe is sealed. Under the pressure of the spring 606, the abutment 605 is squeezed to make the sealing ring 601 fit tightly against the outside of the interface, further ensuring the sealing of the connection.
[0036] If static electricity causes the pipeline to burn during the filling process, the flame arrester 4 blocks the fire source, and the control valve 3 is closed at the same time, thus doubly blocking the fire source and preventing the fire source from entering the hazardous chemical vehicle. When the medium enters the pipe body 1, it is filtered by the filter screen 503 to avoid damaging the flame arrester 4 and the control valve 3. When the filter screen 503 needs to be cleaned, pull the handle 502 to move the mounting plate 501, so that the positioning head 506 is squeezed into the through hole 504. After the positioning head 506 is separated from the sleeve 5, the filter screen 503 can be removed for cleaning.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A flame-retardant filling arm, comprising a tube body (1), characterized in that: A rotating head (2) is connected to the corner of the pipe body (1). A control valve (3) is installed on the right side of the pipe body (1). A flame arrester (4) is installed on the right side of the control valve (3). A sleeve (5) is installed on the right side of the flame arrester (4). An installation plate (501) is snapped into the inside of the sleeve (5). A filter screen (503) is installed inside the installation plate (501). Through holes (504) are opened on the front and back sides of the upper side of the inside of the installation plate (501). A positioning component is fixedly connected inside the through hole (504). The positioning component is used to firmly install the installation plate (501) inside the sleeve (5). The flame arrester (4) and the sleeve (5) are both installed on the outside of the pipe body (1).
2. The flame-retardant filling arm according to claim 1, characterized in that: A connector (6) is fixedly connected to the outside of the input end of the tube body (1). A sealing ring (601) is installed inside the connector (6). A locking block (602) is fixedly connected to the upper and lower sides of the sealing ring (601). An outer cylinder (603) is fixedly connected to the front and rear sides of the connector (6). A squeezing assembly is slidably connected inside the outer cylinder (603). The squeezing assembly is used to make the sealing ring (601) fit tightly against the filling port of the tank truck.
3. The flame-retardant filling arm according to claim 1, characterized in that: The positioning component includes a spring (505), one end of which is fixedly connected to the inside of the through hole (504), and the other end of which is fixedly connected to a positioning head (506), which is slidably connected to the inside of the sleeve (5) and the through hole (504).
4. A flame-retardant filling arm according to claim 2, characterized in that: The extrusion assembly includes a pull rod (604), which is slidably connected inside the outer cylinder (603). A stop block (605) is fixedly connected to the near end of the pull rod (604), and a spring (606) is sleeved on the outer side of the pull rod (604).
5. A flame-retardant filling arm according to claim 4, characterized in that: The connector (6) has insertion holes (607) on both the front and rear sides inside. The abutment (605) is slidably connected to the insertion hole (607) and the inner cylinder (603). The side of the abutment (605) close to the outer side of the sealing ring (601) is in contact with the outer side.
6. A flame-retardant filling arm according to claim 4, characterized in that: One end of the second spring (606) is fixedly connected to the inner wall of the outer cylinder (603), and the other end of the second spring (606) is fixedly connected to the side close to the protruding end of the pull rod (604).
7. A flame-retardant filling arm according to claim 1, characterized in that: A handle (502) is fixedly connected to the upper part of the mounting plate (501).
8. A flame-retardant filling arm according to claim 1, characterized in that: The filter (503) is installed inside the tube (1).