A heat supply pipe network leak-proof device for heat supply
By designing a leak-proof device for heating pipe networks, using clamps and screw systems to fix the pipes, and combining humidity sensors and alarms, the problem of existing devices being unable to prevent leaks for a long time has been solved, and the safe and reliable operation of the heating pipe network has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGHAI SUNRISE KUNLUN IND GRP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-26
AI Technical Summary
Existing leak prevention devices in heating networks can only temporarily prevent leaks and are not effective in the long term. Leaks may still occur under high pressure, leading to energy loss and safety hazards.
Design a leak-proof device that includes a fixed pipe, a secondary sleeve, a connecting pipe, a rotating rod, a clamping block, a connecting block, a screw, a fixed circular plate, a blocking block, and a spring. Combined with a humidity sensor and a control panel, it can detect the humidity of the pipeline in real time and notify the user in a timely manner through an alarm. The clamping block and screw system is used to fix the pipeline to prevent leakage.
It effectively prevents leaks in heating pipe networks, protects equipment and personnel safety, reduces energy loss, extends equipment lifespan, and promptly addresses potential leak risks through real-time detection and alarm mechanisms.
Smart Images

Figure CN224414926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leak prevention devices for heating pipe networks, and in particular to a leak prevention device for heating pipe networks used for heating and warming. Background Technology
[0002] A simple direct-connection heating system's heating network consists of pipeline systems that transport and distribute heat from heat sources to individual users. In large-scale centralized heating systems, the heating network comprises primary and secondary networks, as well as pipeline systems distributing heat to users, and relay pump stations, secondary heat exchange stations, and mixing pump stations. The layout of the heating network and the determination of the heating pipelines' location in the plane (i.e., "alignment") are two main aspects of heating network layout. Heating networks can be categorized by shape (branched or ring-shaped) and by the number of heat sources (single-source or multi-source). Heating networks typically transmit high-temperature, high-pressure hot water or steam. Leaks not only cause energy loss but can also lead to safety accidents. Existing leak-proof devices for heating networks thicken the existing pipes by adding layers with bolts to achieve a leak-proof effect, but this only provides temporary protection; leaks may recur due to high pressure after a certain period.
[0003] Therefore, in order to reduce energy loss, protect equipment and personnel safety, extend equipment life and meet user needs, it is necessary to design a leak-proof device for heating pipe networks to solve the above-mentioned technical problems. Utility Model Content
[0004] To overcome the shortcomings of only temporarily preventing leakage, where leakage may occur again due to high pressure after a certain period of time, the technical problem is to provide a leak prevention device for heating pipe networks.
[0005] The technical solution is as follows: A leak-proof device for heating pipe networks includes a fixed pipe, a secondary sleeve, a connecting pipe, a rotating rod, a guide rod, a clamping block, a connecting block, a screw, a fixed circular plate, a blocking block, and a spring. The fixed pipe is fixedly connected to a secondary sleeve at its far-center end. A connecting pipe is fixedly connected to the inner side of each of the two secondary sleeves. Both connecting pipes are fixedly connected to the fixed pipe. Rotating rods are rotatably connected to the front and rear sides of the two connecting pipes at their far-center ends. Guide rods are slidably connected to the far-center ends of each of the four rotating rods. Clamping blocks are fixedly connected to the four guide rods near their center ends. Connecting blocks are rotatably connected to the upper and lower ends of the two rear clamping blocks. Screws are threaded to the front sides of each of the four connecting blocks, and the screws on the same side engage with the clamping blocks on the front sides. A fixed circular plate is fixedly connected to the inner side of the fixed pipe. Multiple liquid inlet holes are provided in the center of the fixed circular plate. A blocking block is slidably connected to the right side of the fixed circular plate. A spring is fixedly connected to the right side of the fixed circular plate.
[0006] Optionally, it also includes a humidity sensor, a data cable, and a control panel. Humidity sensors are fixedly connected to the fixed tube near the center end of each of the two connecting tubes. Data cables are fixedly connected to the top of the fixed tube near the center end of each of the two connecting tubes. The humidity sensor on the same side is fixedly connected to the data cable and is electrically connected to the data cable. A control panel is fixedly connected to the top of the fixed tube. Both data cables are fixedly connected to the control panel, and the two humidity sensors are electrically connected to the control panel through the two data cables.
[0007] Optionally, it also includes buttons and an alarm. Buttons are provided on the back of the control panel, and alarms are provided on both the left and right sides of the control panel. The buttons and alarms are electrically connected to the control panel.
[0008] Optionally, it also includes sealing rings, with two sealing rings fixedly connected to the inner side of each of the two connecting pipes.
[0009] Optionally, it also includes anti-slip rubber strips, with anti-slip rubber strips fixedly connected to the inner sides of the four clamps.
[0010] Optionally, it also includes a limiting block. The two clamping blocks on the front side are fixedly connected to the limiting block at both ends. Each of the four fixed blocks is provided with a snap-fit groove, and the corresponding snap-fit groove snaps into the limiting block.
[0011] The beneficial effects are: 1. This utility model prevents leakage of the heating network by cooperating with the fixed pipe, the auxiliary sleeve, and the connecting pipe. Then, it fixes the pipe by cooperating with the clamp, the connecting block, and the screw. Finally, it effectively controls the air pressure in the pipe by cooperating with the fixed round plate, the blocking block, and the spring, preventing the pipe from leaking due to excessive pressure.
[0012] 2. This utility model, through the combination of anti-slip rubber strips and sealing rings, makes the connection between pipes tighter while protecting the pipes from wear.
[0013] 3. This utility model uses a humidity sensor to detect humidity inside the pipe in real time and promptly detect changes inside the pipe.
[0014] 4. This utility model, in conjunction with an alarm, can promptly reflect changes within the pipeline, allowing staff to conduct timely inspections. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the components of this utility model, including the fixing tube, the secondary sleeve, and the control panel.
[0016] Figure 2 This is a three-dimensional cross-sectional view of the components of this utility model, including the fixing tube, the auxiliary sleeve, and the humidity sensor.
[0017] Figure 3This is a three-dimensional sectional view of the rotating rod, guide rod, and sealing ring components of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the clamping block, connecting block, and anti-slip rubber strip.
[0019] Figure 5 This is a three-dimensional structural diagram of the screw, fixing block, and limiting block components of this utility model.
[0020] Figure 6 This is a three-dimensional sectional view of the components of this utility model, including the fixed circular plate, the plug, and the spring block.
[0021] Figure 7 This is a three-dimensional sectional view of the fixed circular plate and the blocking block of this utility model.
[0022] Explanation of reference numerals in the attached diagram: 1-Fixed tube, 2-Secondary sleeve, 3-Humidity sensor, 4-Data cable, 5-Control panel, 6-Button, 7-Alarm, 701-Connecting tube, 8-Rotating rod, 9-Guide rod, 10-Sealing ring, 11-Clamping block, 12-Connecting block, 13-Anti-slip strip, 14-Screw, 15-Fixing block, 16-Limiting block, 17-Snap-fit groove, 18-Fixed round plate, 19-Liquid inlet hole, 20-Blocking block, 21-Spring. Detailed Implementation
[0023] Example: A leak-proof device for heating pipe networks, such as... Figures 1-7 As shown, it includes a fixed tube 1, secondary sleeves 2, connecting tubes 701, rotating rods 8, guide rods 9, clamping blocks 11, connecting blocks 12, screws 14, a fixed circular plate 18, a blocking block 20, and a spring 21. The secondary sleeves 2 are fixedly connected to the ends of the fixed tubes 1 furthest from the center. Connecting tubes 701 are fixedly connected to the inner sides of both secondary sleeves 2. Both connecting tubes 701 are fixedly connected to the fixed tubes 1. Rotating rods 8 are rotatably connected to the front and rear sides of the ends of the two connecting tubes 701 furthest from the center. All four rotating rods 8 are slidably connected to the ends of the four rotating rods 8 furthest from the center. Guide rod 9, with clamping blocks 11 welded to the center end of each of the four guide rods 9. The two clamping blocks 11 on the rear side are rotatably connected to connecting blocks 12 at their upper and lower ends. Each of the four connecting blocks 12 is threaded with a screw 14 on its front side. The screw 14 on the same side is engaged with the clamping block 11 on the front side. A fixed circular plate 18 is fixedly connected to the inner side of the fixed tube 1. The fixed circular plate 18 has multiple liquid inlet holes 19 in its middle. A blocking block 20 is slidably connected to the right side of the fixed circular plate 18. A spring 21 is fixedly connected to the blocking block 20 and the right side of the fixed circular plate 18.
[0024] like Figure 1 and Figure 2As shown, it also includes a humidity sensor 3, a data cable 4, and a control panel 5. Humidity sensors 3 are fixedly connected to the fixed pipe 1 near the center end of the two connecting pipes 701. Data cables 4 are fixedly connected to the top of the fixed pipe 1 near the center end of the two connecting pipes 701. The humidity sensors 3 on the same side are fixedly connected to the data cables 4 and are electrically connected to the data cables 4. The control panel 5 is installed on the top of the fixed pipe 1. The two data cables 4 are fixedly connected to the control panel 5, and the two humidity sensors 3 are electrically connected to the control panel 5 through the two data cables 4.
[0025] like Figure 2 As shown, it also includes a button 6 and an alarm 7. The button 6 is located on the back of the control panel 5, and the alarm 7 is located on both the left and right sides of the control panel 5. The button 6 and the alarm 7 are electrically connected to the control panel 5.
[0026] like Figure 3 As shown, it also includes a sealing ring 10, and two sealing rings 10 are provided on the inner side of each of the two connecting pipes 701.
[0027] like Figure 4 As shown, it also includes anti-slip rubber strips 13, and anti-slip rubber strips 13 are provided on the inner side of each of the four clamping blocks 11.
[0028] like Figure 4 and Figure 5 As shown, it also includes a limiting block 16. The upper and lower ends of the two clamping blocks 11 on the front side are connected to the limiting block 16 by bolts. Each of the four fixed blocks 15 is provided with a snap-fit groove 17, and the corresponding snap-fit groove 17 snaps into the limiting block 16.
[0029] The operator can apply the corresponding technical solutions in this device to the heating network according to the specific situation. When it is necessary to use this device to assist in the operation of preventing leakage in the heating network, first connect the pipes on both sides to the connecting pipe 701 through the clamps 11 on both sides. The inner side of the connecting pipe 701 on both sides is provided with a sealing ring 10 to make the connection between the clamps 11 and the connecting pipe 701 tighter. Then, rotate the connecting block 12 clockwise to drive the screw 14 to engage with the clamp 11 on the front side. Twist the four fixing blocks 15 clockwise. The clamping blocks 11 move backward synchronously, causing the corresponding fixing block 15 to contact the limiting block 16. The corresponding locking groove 17 engages with the limiting block 16, thus limiting the corresponding fixing block 15 and preventing the clamping block 11 from separating from the limiting block 16. Then, the clamping blocks 11 on both the front and rear sides clamp the pipe, achieving the effect of fixing the pipe. Anti-slip rubber strips 13 are provided on the inner sides of all four clamping blocks 11 to ensure a tighter fit between the clamping blocks 11 and the pipe. Finally, the control panel 5 and humidity sensor 3 are activated via button 6. 3. The humidity inside the pipeline is detected. If the humidity inside the pipeline changes, the signal is transmitted to the control panel 5. The alarm 7 on the control panel 5 emits a red light to warn the staff. The fixed pipe 1 is also equipped with a blocking block 20. If the pressure inside the pipeline is too high, the air pressure squeezes the blocking block 20 to move to the right, and the spring 21 is compressed to allow airflow and reduce the pressure burden inside the pipeline. After the air pressure returns to normal, the spring 21 extends and drives the blocking block 20 to reset. If it is necessary to disassemble this device, turn the four fixing blocks 15 counterclockwise to drive the screw 14 to move forward synchronously, so that the corresponding locking groove 17 and the limit block 16 are no longer locked. Then turn the four connecting blocks 12 counterclockwise so that the corresponding fixing blocks 15 and the clamping blocks 11 are no longer in contact. Then lift the fixing blocks 15, the screw 14 and the connecting blocks 12 upward to disengage the screw 14 from the clamping block 11 on the front side. Then pull the four rotating rods 8 to move away from the center end, thereby driving the four clamping blocks 11 to move away from the center end. At this time, the pipeline is no longer fixed, and the device can be taken out.
Claims
1. A leak-proof device for a heating network, comprising a fixed pipe (1), a secondary sleeve (2), a connecting pipe (701), a rotating rod (8), a guide rod (9), a clamping block (11), a connecting block (12), and a screw (14). The fixed pipe (1) is fixedly connected to a secondary sleeve (2) at its far-center end. A connecting pipe (701) is fixedly connected to the inner side of each of the two secondary sleeves (2). Both connecting pipes (701) are fixedly connected to the fixed pipe (1). The two connecting pipes (701) are also fixedly connected to the fixed pipe (1). 01) Rotary rods (8) are rotatably connected to both the front and rear sides away from the center end. Guide rods (9) are slidably connected to the four rotating rods (8) away from the center end. Clamping blocks (11) are fixedly connected to the four guide rods (9) near the center end. Connecting blocks (12) are rotatably connected to the upper and lower ends of the two rear clamping blocks (11). Screws (14) are threaded to the front of the four connecting blocks (12). The screws (14) on the same side are engaged with the clamping blocks (11) on the front side. The feature is that: It also includes a fixed circular plate (18), a blocking block (20) and a spring (21). The fixed circular plate (18) is fixedly connected to the inside of the fixed tube (1). The fixed circular plate (18) has multiple liquid inlet holes (19) in the middle. The blocking block (20) is slidably connected to the right side of the fixed circular plate (18). The blocking block (20) is fixedly connected to the right side of the fixed circular plate (18) with a spring (21).
2. The heat supply pipe network leak protection device according to claim 1, characterized in that: It also includes a humidity sensor (3), a data cable (4) and a control panel (5). The humidity sensor (3) is fixedly connected to the fixed tube (1) near the center end of the two connecting tubes (701). The data cable (4) is fixedly connected to the top of the fixed tube (1) near the center end of the two connecting tubes (701). The humidity sensor (3) on the same side is fixedly connected to the data cable (4), and the humidity sensor (3) is electrically connected to the data cable (4). The control panel (5) is fixedly connected to the top of the fixed tube (1). The two data cables (4) are fixedly connected to the control panel (5), and the two humidity sensors (3) are electrically connected to the control panel (5) through the two data cables (4).
3. The heat supply pipe network leak protection device according to claim 2, characterized in that: It also includes a button (6) and an alarm (7). The button (6) is located on the back of the control panel (5), and the alarm (7) is located on both the left and right sides of the control panel (5). The button (6) and the alarm (7) are electrically connected to the control panel (5).
4. The heat supply pipe network leak protection device according to claim 3, characterized in that: It also includes sealing rings (10), and two sealing rings (10) are fixedly connected to the inner side of the two connecting pipes (701).
5. The heat supply pipe network leak protection device according to claim 4, characterized in that: It also includes anti-slip rubber strips (13), and the inner sides of the four clamps (11) are all fixedly connected with anti-slip rubber strips (13).
6. The heat supply pipe network leak protection device according to claim 5, characterized in that: It also includes a limit block (16), and the two clamping blocks (11) on the front side are fixedly connected to the limit block (16) at both ends. Each of the four fixed blocks (15) is provided with a snap-fit groove (17), and the corresponding snap-fit groove (17) snaps into the limit block (16).