Device for detecting flame retardant property of HDPE (high-density polyethylene) pipe

Abstract

The utility model relates to the field of pipe flame retardance detection, in particular to an HDPE pipe flame retardance detection device which comprises a box body, an inner container, a separation ring, a rotating block and a limiting block, the inner container is arranged in the box body, and the rotating block is rotationally installed in one side of the box body; limiting blocks which are distributed in an annular array mode and provided with elastic elements are arranged on the outer wall of the rotating block, separating rings which are distributed in a linear array mode are arranged on the inner wall of the inner container, and flamethrowers are arranged on the two sides, divided by the separating rings, of the inner wall of the inner container. Through cooperation of the elastic limiting block and the rotating block, rapid fixing and rotating of a pipe are achieved, and it is ensured that heating is uniform; the separation ring is designed to form an independent combustion chamber to be matched with the flamethrower and the high-temperature-resistant camera, so that accurate acquisition and comparative analysis of surface combustion data of a single pipeline are realized, and the problem that a large number of samples need to be adopted in the flame retardant property test of the existing HDPE pipe, so that the sample treatment and analysis time is short, and inconvenience is caused is solved.

Description

Technical Field

[0001] This utility model relates to the field of flame retardancy testing of pipes, and in particular to a device for testing the flame retardancy performance of HDPE pipes. Background Technology

[0002] HDPE pipe (high-density polyethylene pipe) is a type of plastic pipe made from high-density polyethylene resin through an extrusion molding process. It possesses excellent corrosion resistance, impact resistance, and flexibility, making it suitable for water supply, drainage, gas transmission, agricultural irrigation, and other applications. HDPE pipes are lightweight, easy to install, and have a smooth inner wall, resulting in low fluid resistance and effectively reducing energy consumption. They have a long service life (up to 50 years or more), are environmentally friendly and non-toxic, recyclable, and have excellent heat-fusion connection performance, ensuring reliable joint sealing. Furthermore, HDPE pipes exhibit outstanding low-temperature resistance, functioning stably within a temperature range of -60℃ to 60℃, making them an ideal replacement for traditional metal pipes.

[0003] While existing technologies can achieve certain results in testing the flame retardant performance of HDPE pipes, they suffer from drawbacks. The current methods require a large number of samples, leading to lengthy sample processing and analysis times and causing inconvenience. Therefore, we propose a flame retardant performance testing device for HDPE pipes, which solves these problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a device for testing the flame retardant performance of HDPE pipes.

[0005] The technical solution of this utility model is as follows: A flame retardant performance testing device for HDPE pipes includes a box, an inner liner, a partition ring, a rotating block, and a limiting block. The inner liner is fixed inside the box by a fixing frame. A rotating block is rotatably installed inside one side of the box. The outer wall of the rotating block is provided with limiting blocks arranged in a ring array and having elastic elements. The inner wall of the inner liner is provided with partition rings arranged in a linear array. Flame injectors are provided on both sides of the inner wall of the inner liner divided by the partition rings.

[0006] When using this device, the pipe to be tested can be inserted into the inner chamber from one side of the housing. Finally, a limiting block is inserted into the pipe, and the limiting block can fix the pipe under the action of a spring. After fixing, the side cover is closed, and the motor and flame emitter are turned on. The control panel can be used to adjust the flame emitter to different axial positions for spraying. Under the action of the partition ring, it is divided into multiple combustion chambers, and the combustion effect of different chambers can be adjusted. The surface physical properties can be recorded using a camera. The motor can drive the pipe to rotate, so that the heating in all directions is uniform. This device can simulate multiple combustion effects on the same pipe, realize the flame-retardant effect of the pipe under different flame combustion degrees, facilitate comparison, and has high practicality.

[0007] Preferably, the outer walls on both sides of the housing are provided with collection grooves. The collection grooves are fixedly connected to the outer walls of the housing via mounting base one. The collection grooves mainly store fuel for use by the flamethrower. At the same time, the fixing of the mounting base one enhances the structural stability and extends the service life of the equipment.

[0008] Preferably, a transmission pipe is provided between the collection tank and the box body. The transmission pipe is connected to the flame injector through a branch pipe buried inside the box body. The buried connection between the transmission pipe and the branch pipe enables efficient fuel delivery, reduces external pipeline interference, improves safety, and ensures the continuous and stable operation of the flame injector.

[0009] Preferably, a side cover is provided on one side of the outer wall of the enclosure. The side cover is rotatably connected to the outer wall of the enclosure. A handle is rotatably installed on one side of the side cover. The rotatable connection between the side cover and the handle simplifies the operation process, facilitates quick opening and closing of the enclosure, improves testing efficiency, and enhances the sealing performance of the equipment.

[0010] Preferably, a bracket is fixed to the lower end of the housing, and a base is fixed to the lower end of the bracket. The combination of the bracket and the base provides stable support, reduces the interference of vibration on the testing process, and ensures the clarity and consistency of the data collected by the camera.

[0011] Preferably, a controller is fixed to the upper end of the housing, and a high-temperature resistant camera arranged in a linear array is provided on the upper end of the inner liner. The information collected by the camera is post-processed by the controller and transmitted to the back-end control system. A control panel is fixed to one side of the outer wall of the housing. The controller integrates data processing functions, analyzes the combustion images collected by the camera in real time, and achieves precise parameter control in combination with the control panel.

[0012] Preferably, a motor is fixed to one outer wall of the housing, the output shaft of the motor is fixedly connected to the rotation center of one side of the rotating block, a plug rod is fixed to the lower end of the limiting block, the plug rod is inserted into the limiting block, a spring is provided between the bottom of the limiting block and the outer wall of the rotating block, and one side of the limiting block is designed with an inclined angle. The motor drive, in conjunction with the spring limiting block, realizes automatic centering and rotation of the pipe. The inclined angle design, in conjunction with the spring, facilitates the insertion and removal of the pipe.

[0013] Preferably, a pressure booster is provided on one side of the outer wall of the chamber. The pressure booster is fixedly connected to the outer wall of the chamber via a mounting base two. The pressure booster appropriately increases the internal pressure of the inner liner to ensure complete combustion. The pressure booster optimizes the combustion conditions by adjusting the pressure of the inner liner, simulating a real high-pressure environment, making the test results more practically valuable.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model achieves efficient multi-condition testing of the flame retardant performance of pipes by combining the independent combustion chamber of the partition ring with a controller, camera, and booster. It can detect various combustion effects on the surface of a single-end pipe.

[0016] Second, based on the first beneficial effect, the design of elastic limit, uniform heating by rotation, and residue collection not only improves the testing accuracy, but also takes into account the ease of operation and environmental friendliness. Overall, it can perform diverse testing effects on a single section of pipeline and obtain a variety of reliable data.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a rear view schematic diagram of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle;

[0022] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of the B-structure.

[0023] Figure label:

[0024] 1. Cabinet; 2. Controller; 3. Side cover; 4. Handle; 5. Inner liner; 6. Bracket; 7. Base; 8. Mounting base one; 9. Collection trough; 10. Transmission pipe; 11. Control panel; 12. Pressure booster; 13. Mounting base two; 14. Motor; 15. Fixing bracket; 16. Separating ring; 17. Insert rod; 18. Limiting block; 19. Spring; 20. Rotating block; 21. Flame jet; 22. Camera. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Please see Figures 1-5 As shown, this embodiment is a flame retardant performance testing device for HDPE pipes, including a box 1, an inner liner 5, a partition ring 16, a rotating block 20, and a limiting block 18. The inner liner 5 is fixed inside the box 1 by a fixing frame 15. The rotating block 20 is rotatably installed inside one side of the box 1. The outer wall of the rotating block 20 is provided with limiting blocks 18 arranged in a ring array and having elastic elements. The inner wall of the inner liner 5 is provided with partition rings 16 arranged in a linear array. Flame jets 21 are provided on both sides of the inner wall of the inner liner 5 divided by the partition rings 16.

[0031] When using this device, the pipe to be tested can be inserted into the inner liner 5 from one side of the housing 1. Finally, the limiting block 18 is inserted into the pipe, and the limiting block 18 can fix the pipe under the action of the spring 19. After fixing, the side cover 3 is closed, and the motor 14 and flame emitter are turned on. The flame emitter at different axial positions can be adjusted using the control panel 11 to spray. Under the action of the partition ring 16, it is divided into multiple combustion chambers, and the combustion effect of different chambers can be adjusted. The surface physical properties can be recorded using a camera. The motor 14 can drive the pipe to rotate, so that the heating in all directions is uniform. This device can simulate multiple combustion effects on the same pipe, realize the flame-retardant effect of the pipe under different flame combustion degrees, facilitate comparison, and has high practicality.

[0032] Example 2

[0033] Please see Figures 1-5 As shown, this embodiment, based on embodiment 1, further includes: collection grooves 9 are provided on the outer walls of both sides of the housing 1. The collection grooves 9 are fixedly connected to the outer walls of the housing 1 through mounting base 8. The collection grooves 9 mainly store fuel for use by the flame injector 21. At the same time, the fixed installation through mounting base 8 enhances the structural stability and extends the service life of the equipment.

[0034] A transmission pipe 10 is provided between the collection tank 9 and the box 1. The transmission pipe 10 is connected to the flame injector 21 through a branch pipe buried inside the box 1. The buried connection between the transmission pipe 10 and the branch pipe enables efficient fuel delivery, reduces external pipeline interference, improves safety, and ensures the continuous and stable operation of the flame injector 21.

[0035] A side cover 3 is provided on one side of the outer wall of the enclosure 1. The side cover 3 is rotatably connected to the outer wall of the enclosure 1. A handle 4 is rotatably installed on one side of the side cover 3. The rotatable connection between the side cover 3 and the handle 4 simplifies the operation process, facilitates quick opening and closing of the enclosure 1, improves testing efficiency, and enhances the sealing of the equipment.

[0036] A bracket 6 is fixed to the lower end of the housing 1, and a base 7 is fixed to the lower end of the bracket 6. The combination of the bracket 6 and the base 7 provides stable support, reduces the interference of vibration on the testing process, and ensures the clarity and consistency of the data collected by the camera 22.

[0037] A controller 2 is fixed at the top of the housing 1, and a high-temperature resistant camera 22 arranged in a linear array is installed at the top of the inner liner 5. The information collected by the camera 22 is post-processed by the controller 2 and transmitted to the back-end control system. A control panel 11 is fixed on one side of the outer wall of the housing 1. The controller 2 integrates data processing functions, analyzes the combustion images collected by the camera 22 in real time, and achieves precise parameter control in combination with the control panel 11.

[0038] A motor 14 is fixed to one side of the outer wall of the housing 1. The output shaft of the motor 14 is fixedly connected to the rotation center of one side of the rotating block 20. A plug rod 17 is fixed to the lower end of the limiting block 18. The plug rod 17 is inserted into the inside of the limiting block 18. A spring 19 is provided between the bottom of the limiting block 18 and the outer wall of the rotating block 20. One side of the limiting block 18 is designed with an inclined angle. The motor 14 drives the limiting block 18 in conjunction with the spring 19 to realize the automatic centering and rotation of the pipe. The inclined angle design in conjunction with the spring 19 makes it easy to insert and remove the pipe.

[0039] A booster 12 is provided on one side of the outer wall of the chamber 1. The booster 12 is fixedly connected to the outer wall of one side of the chamber 1 through the mounting base 2 13. The booster 12 appropriately increases the internal pressure of the inner liner 5 to ensure complete combustion. The booster 12 optimizes the combustion conditions by adjusting the pressure of the inner liner 5, simulating a real high-pressure environment, making the test results more practically valuable.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A flame retardant performance testing device for HDPE pipes, comprising a housing (1), an inner liner (5), a separating ring (16), a rotating block (20), and a limiting block (18), characterized in that: The inner liner (5) is fixed inside the box (1) by a fixing frame (15). A rotating block (20) is rotatably installed inside one side of the box (1). The outer wall of the rotating block (20) is provided with a limiting block (18) with elastic elements arranged in a ring array. The inner wall of the inner liner (5) is provided with a dividing ring (16) arranged in a linear array. Flame jets (21) are provided on both sides of the inner wall of the inner liner (5) divided by the dividing ring (16).

2. The flame retardant performance testing device for HDPE pipes according to claim 1, characterized in that: The outer walls on both sides of the box (1) are provided with collection grooves (9), and the collection grooves (9) are fixedly connected to the outer walls of the box (1) through mounting base (8).

3. The flame retardant performance testing device for HDPE pipes according to claim 2, characterized in that: A transmission pipe (10) is provided between the collection tank (9) and the box (1), and the transmission pipe (10) is connected to the flame injector (21) through a branch pipe buried inside the box (1).

4. The flame retardant performance testing device for HDPE pipes according to claim 1, characterized in that: The outer wall of one side of the box (1) is provided with a side cover (3), which is rotatably connected to the outer wall of the box (1), and a handle (4) is rotatably installed on one side of the side cover (3).

5. The flame retardant performance testing device for HDPE pipes according to claim 4, characterized in that: The lower end of the box (1) is fixed with a bracket (6), and the lower end of the bracket (6) is fixed with a base (7).

6. The flame retardant performance testing device for HDPE pipes according to claim 1, characterized in that: A controller (2) is fixed at the upper end of the housing (1), and a high-temperature resistant camera (22) arranged in a linear array is provided at the upper end of the inner liner (5). The information collected by the camera (22) is post-processed by the controller (2) and transmitted to the back-end control system. A control panel (11) is fixed on one side of the outer wall of the housing (1).

7. The flame retardant performance testing device for HDPE pipes according to claim 1, characterized in that: A motor (14) is fixed to one side of the outer wall of the housing (1). The output shaft of the motor (14) is fixedly connected to the rotation center of one side of the rotating block (20). A plug rod (17) is fixed to the lower end of the limiting block (18). The plug rod (17) is inserted into the inside of the limiting block (18). A spring (19) is provided between the bottom of the limiting block (18) and the outer wall of the rotating block (20). One side of the limiting block (18) is designed with an inclined angle.

8. The flame retardant performance testing device for HDPE pipes according to claim 1, characterized in that: A booster (12) is provided on one side of the outer wall of the box (1). The booster (12) is fixedly connected to the outer wall of one side of the box (1) through the mounting base (13). The booster (12) appropriately increases the internal pressure of the inner liner (5) to ensure complete combustion.

Images