Flushing device for heat supply pipeline

Abstract

The utility model relates to the technical field of pipeline cleaning equipment, in particular to a flushing device for a heat supply pipeline, which comprises the heat supply pipeline, a flushing pipe is inserted into the heat supply pipeline, an inserting rod is connected onto the flushing pipe in a sliding manner, a pressure disc is connected to the end part of the inserting rod, and the output end of the flushing pipe and the pressure disc are both arranged in the heat supply pipeline. The pressure disc is arranged away from the output end of the flushing pipe and connected with the flushing pipe through a spring, a guide ring is arranged in the flushing pipe, the other end of the insertion rod is connected with a sealing disc so as to seal a guide hole of the guide ring, and the sealing disc seals the guide hole in the guide ring. The flushing water in the water storage mechanism passes through the guide hole and then is discharged through the output end of the flushing pipe to flush the low-pressure area, so that accumulated scale is removed, the heating efficiency of the heat supply pipeline can be prevented from being reduced, and meanwhile, the cleaning difficulty of the heat supply pipeline is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline cleaning equipment, and in particular to a flushing device for heating pipelines. Background Technology

[0002] Heating pipelines are piping systems used to transport heat energy, typically used in centralized heating, district heating, or indoor heating systems within buildings. The main purpose of these pipeline systems is to transport hot water, steam, or other heat media from heat sources (such as combined heat and power plants, district heating stations, or boiler rooms) to end users (such as residential buildings, commercial buildings, and industrial facilities) that require heat energy.

[0003] However, the existing equipment still has shortcomings. Due to the length of the heating pipes, there is a low-pressure area at the connection between the output end and the heat energy terminal. The existence of the low-pressure area will cause water pressure fluctuations. When the water pressure is low, a large amount of scale will accumulate, which will seriously reduce the heating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a flushing device for heating pipelines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flushing device for heating pipelines, comprising: a heating pipeline, a flushing pipe, a rod, a spring, a pressure plate, a sealing plate, and a guide ring. The flushing pipe is inserted into the heating pipeline, and the rod is slidably connected to the flushing pipe. A pressure plate is connected to the end of the rod. The output end of the flushing pipe and the pressure plate are both placed inside the heating pipeline. The pressure plate is positioned away from the output end of the flushing pipe. The pressure plate is connected to the flushing pipe via a spring. A guide ring is installed inside the flushing pipe, and a sealing plate is connected to the other end of the rod to seal the guide hole of the guide ring.

[0006] Preferably, the guide post on the sealing disc is slidably connected to the guide ring, the guide post has a guide groove on its side wall, the end of the guide groove is opened on the end face of the guide post, the end of the guide groove is set away from the sealing disc, and the inner wall of the guide groove is inclined toward the output end of the flushing pipe.

[0007] Preferably, the output end of the flushing pipe is connected to the end of a booster pipe, and the inner diameter of the booster pipe is smaller than the inner diameter of the flushing pipe.

[0008] Preferably, the inclined surface of the inner wall of the booster pipe end is oriented toward the guide ring.

[0009] Preferably, the round hole in the inner wall of the heating pipe is connected to the end of the pressure relief pipe, the other end of the pressure relief pipe is connected to the second round hole of the flushing pipe, a pressure relief column is slidably connected inside the pressure relief pipe, a pressure relief groove is opened on the side wall of the pressure relief column, the end of the pressure relief groove is opened on the end face of the pressure relief column and faces the heating pipe, the inner wall of the pressure relief groove is located between the inner wall of the flushing pipe and the inner wall of the heating pipe, the end of the pressure relief column is connected to the end of the second spring, and the other end of the second spring is connected to the mounting ring inside the pressure relief pipe.

[0010] Preferably, a second insert rod is slidably sealed inside the circular hole three on the side wall of the flushing pipe, and the end of the second insert rod is connected to the other end face of the pressure relief column.

[0011] Preferably, an indicator block is installed at the other end of the insertion rod away from the flushing pipe.

[0012] Preferably, a locking pipe is connected to the flushing pipe, and the locking pipe is located between the pressure relief pipe and the heating pipe.

[0013] Preferably, the locking tube has a sliding sealing locking post, and a locking hole is provided through the locking post, with the central axis of the locking hole being collinear with the central axis of the flushing tube.

[0014] Preferably, the end of the locking pin is connected to the end of the driving rod, the driving rod slides and seals with the driving hole of the locking tube, and the other end of the driving rod away from the locking tube is connected to the indicator block.

[0015] The beneficial effects of this utility model are as follows:

[0016] The sealing disc seals the guide hole on the guide ring. The flushing water in the water storage mechanism passes through the guide hole and is then discharged through the output end of the flushing pipe to flush the low-pressure area, thereby removing the accumulated scale. This prevents the heating efficiency of the heating pipe from decreasing and also reduces the difficulty of cleaning the heating pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the main structure of this utility model;

[0019] Figure 3 This is a schematic diagram showing the location of the guide channel in this utility model;

[0020] Figure 4 This is a schematic diagram showing the location of the locking hole in this utility model.

[0021] Figure 5 This is a schematic diagram showing the connection relationship between the pressure relief column and the spring of this utility model.

[0022] In the diagram: 1. Flushing pipe; 2. Insert rod; 3. Spring; 4. Pressure plate; 5. Sealing plate; 6. Guide ring; 7. Guide post; 8. Flow channel; 9. Pressure boosting pipe; 10. Inclined surface; 11. Pressure relief pipe; 12. Pressure relief post; 13. Pressure relief groove; 14. Spring 2; 15. Insert rod 2; 16. Indicator block; 17. Locking pipe; 18. Locking post; 19. Locking hole; 20. Drive rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1: Reference Figures 1-5 A flushing device for heating pipelines includes: a heating pipeline, a flushing pipe 1, an insert rod 2, a spring 3, a pressure plate 4, a sealing plate 5, and a guide ring 6. The flushing pipe 1 is inserted into the heating pipeline, and the insert rod 2 is slidably connected to the flushing pipe 1. The end of the insert rod 2 is connected to the pressure plate 4. The output end of the flushing pipe 1 and the pressure plate 4 are both placed inside the heating pipeline. The pressure plate 4 is positioned away from the output end of the flushing pipe 1. The pressure plate 4 is connected to the flushing pipe 1 through the spring 3. The flushing pipe 1 contains a guide ring 6, and the other end of the insert rod 2 is connected to the sealing plate 5 to seal the guide hole of the guide ring 6.

[0026] The principles and beneficial effects of the above scheme are as follows:

[0027] A flushing pipe 1 is inserted into the heating pipeline. The output end of the flushing pipe 1 is located in the low-pressure zone of the heating pipeline. The other end of the flushing pipe 1 is connected to a water storage mechanism. When the water pressure in the low-pressure zone of the heating pipeline decreases, the water pressure on the pressure plate 4 decreases synchronously. Under the action of the spring 3, the pressure plate 4 and the insert rod 2 are pushed away from the output end of the flushing pipe 1. The sealing plate 5 ends the sealing of the guide hole on the guide ring 6. The flushing water in the water storage mechanism is discharged through the guide hole and then through the output end of the flushing pipe 1 to flush the low-pressure zone, thereby removing the accumulated scale. This can prevent the heating efficiency of the heating pipeline from decreasing and also reduce the difficulty of cleaning the heating pipeline. When the water pressure in the low-pressure zone increases, the water pressure on the pressure plate 4 increases synchronously. The spring 3 is compressed again, the insert rod 2 and the sealing plate 5 are reset, and the guide hole is sealed again, ending the cleaning of the pipeline.

[0028] Example 2: Reference Figures 1-5 The guide post 7 on the sealing disc 5 is slidably connected to the guide ring 6. A guide groove 8 is opened on the side wall of the guide post 7. The end of the guide groove 8 is opened on the end face of the guide post 7. The end of the guide groove 8 is set away from the sealing disc 5. The inner wall of the guide groove 8 is inclined towards the output end of the flushing pipe 1.

[0029] The principles and beneficial effects of the above scheme are as follows:

[0030] After the sealing disc 5 releases the seal on the guide hole, the guide column 7 moves synchronously, and the guide channel 8 moves synchronously as well. Since the inner wall of the guide channel 8 is inclined toward the output end of the flushing pipe 1, the water flow through the guide hole increases as the guide column 7 moves away from the output end of the flushing pipe 1, further increasing the flushing efficiency of the low-pressure area. When the water pressure in the low-pressure area decreases only slightly, the water flow through the guide hole decreases accordingly, which can reasonably allocate the use of flushing water flow and avoid waste of water resources. At the same time, since the flushing pipe 1 is inserted into the heating pipe, the flushing water inside the flushing pipe 1 can be heated synchronously, preventing the temperature of the heat energy terminal from dropping when cleaning the low-pressure area.

[0031] Example 3: Reference Figures 1-5 The output end of the flushing pipe 1 is connected to the end of the pressure boosting pipe 9, and the inner diameter of the pressure boosting pipe 9 is smaller than the inner diameter of the flushing pipe 1.

[0032] The principles and beneficial effects of the above scheme are as follows:

[0033] Since the inner diameter of the booster pipe 9 is smaller than that of the flushing pipe 1, the booster pipe 9 can increase the water pressure output by the flushing pipe 1, thereby further improving the cleaning efficiency.

[0034] Example 4: Reference Figures 1-5 The inclined surface 10 of the inner wall of the end of the booster pipe 9 is oriented toward the guide ring 6.

[0035] The principles and beneficial effects of the above scheme are as follows:

[0036] An inclined surface 10 is provided on the inner wall of the end of the booster pipe 9, with the inclined surface 10 facing the guide ring 6. This can reduce the impact of water pressure on the end of the booster pipe 9 and improve the service life of the booster pipe 9.

[0037] Example 5: Reference Figures 1-5 The round hole in the inner wall of the heating pipe is connected to the end of the pressure relief pipe 11. The other end of the pressure relief pipe 11 is connected to the second round hole in the flushing pipe 1. A pressure relief column 12 is slidably connected inside the pressure relief pipe 11. A pressure relief groove 13 is opened on the side wall of the pressure relief column 12. The end of the pressure relief groove 13 is opened on the end face of the pressure relief column 12 and faces the heating pipe. The inner wall of the pressure relief groove 13 is located between the inner wall of the flushing pipe 1 and the inner wall of the heating pipe. The end of the second spring 14 is connected to the end face of the pressure relief column 12. The other end of the second spring 14 is connected to the mounting ring inside the pressure relief pipe 11.

[0038] The principles and beneficial effects of the above scheme are as follows:

[0039] When the water pressure output from the heating pipeline to the heat energy terminal is too high, the pressure relief column 12 in the pressure relief pipe 11 moves away from the heating pipeline, and the synchronous spring 14 is stretched. After the inner wall of the pressure relief groove 13 is placed inside the flushing pipe 1, the flushing pipe 1 can release the water pressure in the heating pipeline to prevent the heat energy terminal from being damaged due to excessive water pressure. When the water pressure in the heating pipeline decreases, under the action of the elastic force of the spring 14, the pressure relief column 12 returns to the pressure relief groove 13 and ends the connection between the heating pipeline and the flushing pipe 1.

[0040] Example 6: Reference Figures 1-5 The flushing pipe 1 has a circular hole 3 on its side wall, which is slidably sealed with a second insertion rod 15. The end of the second insertion rod 15 is connected to the other end face of the pressure relief column 12.

[0041] The principles and beneficial effects of the above scheme are as follows:

[0042] The sliding seal between the insert rod 15 and the round hole 3 increases the stability of the pressure relief column 12 during movement.

[0043] Example 7: Reference Figures 1-5 An indicator block 16 is installed at the other end of the insertion rod 15 away from the flushing pipe 1.

[0044] The principles and beneficial effects of the above scheme are as follows:

[0045] When the water pressure on the pressure relief column 12 increases or decreases, the movement of the pressure relief column 12 drives the movement of the insertion rod 15 and the indicator block 16. In this way, the operator can intuitively observe and record the working condition in the pipeline through the indicator block 16, which reduces the use of pressure equipment and greatly saves the cost of equipment manufacturing.

[0046] Example 8: Reference Figures 1-5 The flushing pipe 1 is connected to a locking pipe 17, which is located between the pressure relief pipe 11 and the heating pipe.

[0047] The locking tube 17 has a sliding seal with a locking post 18, and a locking hole 19 is provided through the locking post 18. The central axis of the locking hole 19 is collinear with the central axis of the flushing tube 1.

[0048] The end of the locking pin 18 is connected to the end of the driving rod 20. The driving rod 20 slides and seals with the driving hole of the locking tube 17. The other end of the driving rod 20 away from the locking tube 17 is connected to the indicator block 16.

[0049] The principles and beneficial effects of the above scheme are as follows:

[0050] When the water pressure in the heating pipe increases, in order to ensure that the flushing pipe 1 can recover high-pressure water, the movement of the pressure relief column 12 drives the movement of the insertion rod 15 and the indicator block 16. Simultaneously, the indicator block 16 drives the drive rod 20 and the locking column 18 to move. At this time, the locking hole 19 on the locking column 18 stops the flow to the flushing pipe 1. This can prevent the high-pressure water from flowing back due to the limited capacity of the heat energy terminal to collect high-pressure water caused by the sudden increase in water pressure in the low-pressure area. The high-pressure water is squeezed through the sealing plate 5 at the output end of the flushing pipe 1 and enters the flushing pipe 1. This further prevents the water from putting pressure on the other end of the pressure relief column 12 and preventing it from affecting its recovery of high-pressure water. After the device finishes recovering high-pressure water, the locking column 18 and the drive rod 20 are reset under the action of the indicator block 16. The locking hole 19 is reconnected to the flushing pipe 1 to prepare for the next operation.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flushing device for heating pipelines, characterized in that, include: A heating pipe is provided with a flushing pipe (1) inserted into it. A rod (2) is slidably connected to the flushing pipe (1). A pressure plate (4) is connected to the end of the rod (2). The output end of the flushing pipe (1) and the pressure plate (4) are both placed inside the heating pipe. The pressure plate (4) is located away from the output end of the flushing pipe (1). The pressure plate (4) is connected to the flushing pipe (1) by a spring (3). A guide ring (6) is installed inside the flushing pipe (1). A sealing plate (5) is connected to the other end of the rod (2) to seal the guide hole of the guide ring (6).

2. The flushing device for heating pipelines according to claim 1, characterized in that, The guide post (7) on the sealing disc (5) is slidably connected to the guide ring (6). The guide post (7) has a guide groove (8) on its side wall. The end of the guide groove (8) is located on the end face of the guide post (7). The end of the guide groove (8) is located away from the sealing disc (5). The inner wall of the guide groove (8) is inclined toward the output end of the flushing pipe (1).

3. A flushing device for heating pipelines according to claim 2, characterized in that, The output end of the flushing pipe (1) is connected to the end of the booster pipe (9), and the inner diameter of the booster pipe (9) is smaller than the inner diameter of the flushing pipe (1).

4. A flushing device for heating pipelines according to claim 3, characterized in that, The inclined surface (10) of the inner wall of the end of the booster pipe (9) is set toward the guide ring (6).

5. A flushing device for heating pipelines according to claim 3, characterized in that, The round hole in the inner wall of the heating pipe is connected to the end of the pressure relief pipe (11), and the other end of the pressure relief pipe (11) is connected to the second round hole of the flushing pipe (1). A pressure relief column (12) is slidably connected inside the pressure relief pipe (11). A pressure relief groove (13) is opened on the side wall of the pressure relief column (12). The end of the pressure relief groove (13) is opened on the end face of the pressure relief column (12) and is set towards the heating pipe. The inner wall of the pressure relief groove (13) is set between the inner wall of the flushing pipe (1) and the inner wall of the heating pipe. The end face of the pressure relief column (12) is connected to the end of the second spring (14). The other end of the second spring (14) is connected to the mounting ring inside the pressure relief pipe (11).

6. A flushing device for heating pipelines according to claim 5, characterized in that, The flushing pipe (1) has a circular hole three on its side wall, which is slidably sealed with a second insertion rod (15). The end of the second insertion rod (15) is connected to the other end face of the pressure relief column (12).

7. A flushing device for heating pipelines according to claim 6, characterized in that, An indicator block (16) is installed at the other end of the insertion rod (15) away from the flushing pipe (1).

8. A flushing device for heating pipelines according to claim 7, characterized in that, A locking pipe (17) is connected to the flushing pipe (1), and the locking pipe (17) is located between the pressure relief pipe (11) and the heating pipe.

9. A flushing device for heating pipelines according to claim 8, characterized in that, The locking tube (17) is slidably sealed with a locking post (18), and a locking hole (19) is provided through the locking post (18). The central axis of the locking hole (19) is collinear with the central axis of the flushing tube (1).

10. A flushing device for heating pipelines according to claim 9, characterized in that, The end of the locking pin (18) is connected to the end of the driving rod (20), the driving rod (20) slides and seals with the driving hole of the locking tube (17), and the other end of the driving rod (20) away from the locking tube (17) is connected to the indicator block (16).

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