Supply and return pipeline structure for heating

Abstract

The utility model discloses a supply and return pipeline structure for heating, which relates to the technical field of supply and return pipeline structures, and comprises a pipeline I, a pipeline II and a connecting pipe, the outer side wall of the connecting pipe is fixedly connected with the pipeline I and the pipeline II, the outer side wall of the upper end of the connecting pipe is fixedly connected with a flange I, the upper end of the connecting pipe is provided with a sealing groove, and the flange I is fixedly connected with a flange II. A limiting groove is formed in the inner wall of the connecting pipe, a pipe cover is arranged at the upper end of the connecting pipe, a second flange is fixedly connected to the outer side wall of the pipe cover, a plurality of fixing bolts are in threaded connection with the upper end of the second flange, a sealing ring is fixedly connected to the lower end of the pipe cover, and a filtering assembly is arranged below the pipe cover. By means of the structure, the pipeline can filter hot water or water vapor in a heating system, the possibility of pipeline blockage is reduced, meanwhile, workers can conveniently clean the interior of the pipeline, and stable operation and long-term reliability of the heating pipeline are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of supply and return pipeline structures, in particular to a supply and return pipeline structure for heating. Background Art

[0002] During the heating process, the supply and return pipelines are important components. They are responsible for transporting hot water or steam from the heat source to each heating point, and then returning the cooled water or condensate to the heat source for reheating.

[0003] The traditional supply and return pipeline structure lacks an effective filtering mechanism during use, resulting in possible accumulation of impurities inside the pipeline, affecting the heat exchange efficiency, and even blocking the pipeline, which is not conducive to the long-term use of the pipeline. Secondly, when it is necessary to clean the inside of the pipeline, the entire heating system often needs to be shut down, which causes inconvenience to users and increases the maintenance cost. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a supply and return pipeline structure for heating. This pipeline can filter the hot water or water vapor in the heating system, reduce the possibility of pipeline blockage, and at the same time facilitate the staff to clean the inside of the pipeline, ensuring the stable operation and long-term reliability of the heating pipeline.

[0005] The utility model also provides a supply and return pipeline structure for heating, including: Pipeline One, Pipeline Two and a connecting pipe. The outer side wall of the connecting pipe is fixedly connected with Pipeline One and Pipeline Two. The outer side wall of the upper end of the connecting pipe is fixedly connected with Flange One. A sealing groove is arranged at the upper end of the connecting pipe. A limiting groove is arranged on the inner wall of the connecting pipe. A pipe cover is arranged at the upper end of the connecting pipe. The outer side wall of the pipe cover is fixedly connected with Flange Two. A plurality of fixing bolts are threadedly connected to the upper end of Flange Two. A sealing ring is fixedly connected to the lower end of the pipe cover. A filtering component is arranged below the pipe cover.

[0006] According to the supply and return pipeline structure for heating, the filtering component includes four connecting frames fixedly connected to the lower end of the pipe cover. The lower ends of the four connecting frames are fixedly connected with a reinforcing frame. A filtering frame is fixedly connected to the opposite sides of the four connecting frames. A filter screen is fixedly connected to the inner wall of the filtering frame.

[0007] According to the supply and return pipeline structure for heating, the number of the filtering frames and the filter screens is three each, and the pore diameters of the three filter screens gradually decrease from top to bottom.

[0008] According to the supply and return pipeline structure for heating, the four connecting frames are all adapted to the inner wall of the limiting groove, and the four connecting frames are slidably connected with the limiting groove.

[0009] According to the supply and return pipeline structure for heating, the sealing ring is adapted to the inner wall of the sealing groove, and the sealing ring is slidably connected to the sealing groove.

[0010] According to the supply and return pipeline structure for heating, a plurality of the fixing bolts all threadedly penetrate through the second flange and the first flange, and fixing nuts are threadedly connected to the outer side walls of the lower ends of the plurality of the fixing bolts.

[0011] According to the supply and return pipeline structure for heating, the first pipeline and the second pipeline are alternately distributed on the outer side wall of the upper end and the outer side wall of the lower end of the connecting pipe.

[0012] According to the supply and return pipeline structure for heating, the number of the reinforcing frames is two, and the two reinforcing frames are cross - distributed between the four connecting frames.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by providing the first pipeline, the second pipeline and the connecting pipe, it can be connected to the heating pipeline. By providing the filtering component, it can filter the hot water or water vapor in the heating system, reducing the possibility of pipeline blockage.

[0015] 2. In the utility model, by providing the pipe cap, the sealing ring and the fixing bolts, the sealing performance of the connecting pipe is improved, and at the same time, it is beneficial to take out the filtering component from the connecting pipe, which is convenient for the staff to clean.

[0016] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further illustrates the utility model with reference to the drawings and embodiments;

[0018] Figure 1 It is a perspective view of the side view of the supply and return pipeline structure for heating of the utility model;

[0019] Figure 2 It is an internal perspective view of the connecting pipe of the supply and return pipeline structure for heating of the utility model;

[0020] Figure 3 It is a perspective view of the pipe cap of the supply and return pipeline structure for heating of the utility model;

[0021] Figure 4 It is a sectional perspective view of the connecting pipe of the supply and return pipeline structure for heating of the utility model.

[0022] Legend Explanation:

[0023] 1. Pipe 1; 2. Pipe 2; 3. Connecting pipe; 4. Flange 1; 5. Sealing groove; 6. Limiting groove; 7. Pipe cover; 8. Flange 2; 9. Fixing bolt; 10. Sealing ring; 11. Filter assembly; 111. Connecting frame; 112. Reinforcing frame; 113. Filter frame; 114. Filter net; 901. Fixing nut. Detailed implementation mode

[0024] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0025] Refer to Figures 1-4 , the structure of the supply and return pipes for heating in the embodiment of the present invention includes: Pipe 1, Pipe 2 and Connecting pipe 3. The outer side wall of the Connecting pipe 3 is fixedly connected to Pipe 1 and Pipe 2. The outer side wall of the upper end of the Connecting pipe 3 is fixedly connected to Flange 1. A Sealing groove 5 is provided at the upper end of the Connecting pipe 3. A Limiting groove 6 is provided on the inner wall of the Connecting pipe 3. A Pipe cover 7 is provided at the upper end of the Connecting pipe 3. The outer side wall of the Pipe cover 7 is fixedly connected to Flange 2. A plurality of Fixing bolts 9 are threadedly connected to the upper end of the Flange 2. A Sealing ring 10 is fixedly connected to the lower end of the Pipe cover 7. A Filter assembly 11 is provided below the Pipe cover 7.

[0026] The Filter assembly 11 includes four Connecting frames 111 fixedly connected to the lower end of the Pipe cover 7. A Reinforcing frame 112 is fixedly connected to the lower ends of the four Connecting frames 111. A Filter frame 113 is fixedly connected to the opposite sides of the four Connecting frames 111. A Filter net 114 is fixedly connected to the inner wall of the Filter frame 113. Through the Filter assembly 11, the hot water or water vapor in the heating system can be filtered, and the impurities carried in the hot water or water vapor can be intercepted.

[0027] Both the Filter frame 113 and the Filter net 114 have three in number, and the pore diameters of the three Filter nets 114 gradually decrease from top to bottom. Through the three Filter nets 114, impurities of different sizes can be effectively intercepted.

[0028] All four Connecting frames 111 are adapted to the inner wall of the Limiting groove 6, and the four Connecting frames 111 are slidably connected to the Limiting groove 6. Through the four Connecting frames 111, it is convenient to fix the Filter frame 113 and ensure the stability of the Filter frame 113 at the same time.

[0029] The Sealing ring 10 is adapted to the inner wall of the Sealing groove 5, and the Sealing ring 10 is slidably connected to the Sealing groove 5. Through the Sealing ring 10, it is convenient to improve the sealing performance at the connection between the Connecting pipe 3 and the Pipe cover 7.

[0030] Multiple fixing bolts 9 are threadedly penetrated through flange 2 8 and flange 1 4, and the lower end outer walls of multiple fixing bolts 9 are threadedly connected with fixing nuts 901. The pipe cover 7 can be fixed on the connecting pipe 3 by fixing bolts 9 and fixing nuts 901.

[0031] The pipe 1 and the pipe 2 are staggeredly distributed on the upper outer wall and the lower outer wall of the connecting pipe 3. The pipe 1 and the pipe 2 are conducive to the hot water or water vapor in the heating system to flow into and out of the connecting pipe 3.

[0032] There are two reinforcing frames 112 , and the two reinforcing frames 112 are cross-distributed between the four connecting frames 111 . The cross-distributed reinforcing frames 112 improve the stability of the four connecting frames 111 , thereby further improving the stability of the filter frame 113 .

[0033] Working principle: When in use, it is connected to the heating pipe through pipe 1 and pipe 2 2. When the medium in the heating pipe flows into the connecting pipe 3 through pipe 1 1, the three filter screens 114 filter the steam or hot water and intercept impurities of different sizes to prevent them from entering the heating pipe. The filtered steam or hot water flows out through pipe 2 2. When the connecting pipe 3 has been used for a long time, the fixing nut 901 can be loosened to open the pipe cover 7 from the connecting pipe 3. When the pipe cover 7 is opened, the connecting frame 111 will be pulled out of the connecting pipe 3, which is convenient for the user to clean the filter screen 114. After cleaning, the connecting frame 111 can be slid into the limiting groove 6, and the sealing ring 10 is slidably connected to the sealing groove 5, so that the pipe cover 7 is sealed and connected to the upper end of the connecting pipe 3, and then the pipe cover 7 is fixed to the connecting pipe 3 by the fixing bolts 9 and the fixing nuts 901 to complete the maintenance.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The supply and return pipe structure for heating includes: Pipeline 1 (1), pipeline 2 (2) and connecting pipe (3), characterized in that the outer wall of the connecting pipe (3) is fixedly connected to pipeline 1 (1) and pipeline 2 (2), the outer wall of the upper end of the connecting pipe (3) is fixedly connected to flange 1 (4), the upper end of the connecting pipe (3) is provided with a sealing groove (5), the inner wall of the connecting pipe (3) is provided with a limiting groove (6), the upper end of the connecting pipe (3) is provided with a pipe cover (7), the outer wall of the pipe cover (7) is fixedly connected to flange 2 (8), the upper end of the flange 2 (8) is threadedly connected to a plurality of fixing bolts (9), the lower end of the pipe cover (7) is fixedly connected to a sealing ring (10), and a filter assembly (11) is provided below the pipe cover (7).

2. The supply and return pipe structure for heating according to claim 1, characterized in that: The filter assembly (11) comprises four connecting frames (111) fixedly connected to the lower end of the pipe cover (7), the lower ends of the four connecting frames (111) are fixedly connected to a reinforcing frame (112), the opposite sides of the four connecting frames (111) are fixedly connected to a filter frame (113), and the inner wall of the filter frame (113) is fixedly connected to a filter screen (114).

3. The supply and return pipe structure for heating according to claim 2, characterized in that: The number of the filter frames (113) and the number of the filter screens (114) are both three, and the apertures of the three filter screens (114) decrease from large to small from top to bottom.

4. The supply and return pipe structure for heating according to claim 2, characterized in that: The four connecting frames (111) are all adapted to the inner wall of the limiting groove (6), and the four connecting frames (111) are slidably connected to the limiting groove (6).

5. The supply and return pipe structure for heating according to claim 1, characterized in that: The sealing ring (10) is adapted to fit the inner wall of the sealing groove (5), and the sealing ring (10) is slidably connected to the sealing groove (5).

6. The supply and return pipe structure for heating according to claim 1, characterized in that: The plurality of fixing bolts (9) are all threadedly inserted into flange 2 (8) and flange 1 (4), and the lower end outer walls of the plurality of fixing bolts (9) are all threadedly connected with fixing nuts (901).

7. The supply and return pipe structure for heating according to claim 1, characterized in that: The pipe one (1) and the pipe two (2) are alternately distributed on the upper end outer wall and the lower end outer wall of the connecting pipe (3).

8. The supply and return pipe structure for heating according to claim 2, characterized in that: There are two reinforcing frames (112), and the two reinforcing frames (112) are cross-distributed between the four connecting frames (111).

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