Water loss protection device for heat supply pipe network
By introducing limiting and detection components into the thermal pipeline network protection device, the problems of protective cover displacement and low inspection efficiency are solved, and stable connection and efficient water loss detection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PUBLIC UTILITIES GRP JINING YANZHOU THERMAL POWER CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-15
AI Technical Summary
Existing thermal pipeline protection devices are prone to shifting after installation due to water flow impact, air pressure changes and vibrations, resulting in poor protection effectiveness. In addition, water loss inspection requires the removal of the protective cover, which is inefficient.
By employing a limit assembly and a detection assembly, the limit plate is brought into contact with the flange by rotating the threaded rod, thereby improving the stability of the protective cover. The water loss location is determined by detecting water accumulation through the collection cylinder, eliminating the need to remove the protective cover.
It improves the stability of the connection between the protective cover and the pipeline, reduces positional deviation, simplifies the water loss inspection process, and improves inspection efficiency.
Smart Images

Figure CN224245661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal pipeline protection technology, and more specifically, to a thermal pipeline water loss protection device. Background Technology
[0002] Heating pipe networks, also known as heating pipelines, are heating pipes that start from boiler rooms, direct-fired machine rooms, heating centers, etc., and run from heat sources to the heating inlets of buildings. Multiple heating pipes form a network. As the service life increases, the pipes may leak water due to corrosion, wear, blockage, etc. Therefore, protective devices are needed to protect against water loss and ensure the normal operation of heating.
[0003] Based on the above, the inventors have discovered that existing protective devices mainly use protective covers to seal and reinforce the connection points of pipes to reduce the impact of water loss. However, the protective covers are installed on the outside of the pipe by a sleeve method, and are prone to displacement due to water flow impact, air pressure changes, and vibration, resulting in a decrease in the protective effect. Therefore, in view of this, the inventors have studied and improved the existing structure to provide a water loss protection device for thermal pipelines, in order to achieve a more practical purpose. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a water loss protection device for thermal pipelines. This solution is equipped with a limiting component to improve the stability of the connection between the protective cover and the pipeline, reduce the problem of protective cover position deviation, and improve the protection effect. In addition, a detection component is set up so that the water loss position of the pipeline can be determined without removing the protective cover, eliminating the need for extra work and improving the efficiency of water loss inspection.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A heat pipe network water loss protection device includes two symmetrically arranged pipes. An upper protective cover and a lower protective cover are symmetrically arranged on the outer side of the connection between the two pipes. A knob is provided on both ends of the outer side of the upper protective cover and the outer end of the lower protective cover. A flange is fixedly connected to one end of the pipe on the inner side. A drainage groove is provided below the lower protective cover. Detection mechanisms are provided on both sides of the upper protective cover. A first threaded rod is fixedly connected to the inner side of the knob. A limit plate is provided at one end of the first threaded rod.
[0009] The detection mechanism includes a second threaded rod, with a knob fixedly connected to the top end of the second threaded rod and a collection cylinder fixedly connected to the bottom end of the second threaded rod. A set of liquid inlet holes are provided on the side of the collection cylinder.
[0010] Furthermore, sealing gaskets are fixedly connected to the bottom surface of the upper cover and the top surface of the lower cover, respectively, and the sealing gaskets are in contact with the outside of the pipe.
[0011] Furthermore, the first threaded rod penetrates the lower cover and is threadedly connected to the lower cover.
[0012] Furthermore, the limiting plate is located inside the lower cover, the limiting plate is slidably connected to the lower cover, and the limiting plate is adapted to the flange.
[0013] Furthermore, a movable ring is fixedly connected to one end of the first threaded rod near the limiting plate, and the movable ring is movably connected to the limiting plate.
[0014] Furthermore, the second threaded rod is threadedly connected to the upper protective cover, and the collecting cylinder is located inside the lower protective cover.
[0015] Furthermore, the drainage channel is composed of two staggered grooves, and the horizontally arranged groove below the drainage channel is adapted to the liquid inlet hole.
[0016] 3. Beneficial Effects
[0017] Compared with existing technologies, the advantages of this utility model are:
[0018] (1) This solution sets the upper and lower protective covers to be fixed on the outside of the connection of the network tube. Then, the first threaded rod is rotated by the knob, so that the limiting plate moves towards the flange and fits the side of the flange to limit the flange. Compared with the prior art, the setting of the limiting component improves the stability of the connection between the protective cover and the network tube, reduces the problem of the protective cover position deviation, and improves the protection effect.
[0019] (2) By setting up a detection mechanism, the rotary knob drives the second threaded rod to rotate outward, so that the collection cylinder moves out from the side of the lower cover. Then, the connection of the pipeline is judged as to whether there is water accumulation inside the collection cylinder. Compared with the prior art, setting up a detection component can determine the location of water loss in the network pipe without removing the protective cover, without performing extra work, and improve the efficiency of water loss inspection. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is an exploded view of the overall structure of this utility model;
[0022] Figure 3 This is a structural exploded view of the first threaded rod and the limiting plate of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the testing mechanism of this utility model;
[0024] Figure 5 This is a schematic diagram showing the positional relationship between the second threaded rod and the drainage groove of this utility model.
[0025] The following are the labels in the diagram: 1. Pipeline; 2. Upper cover; 3. Lower cover; 4. Twist; 5. Flange; 6. Drainage channel; 7. Sealing gasket; 8. Detection mechanism; 9. First threaded rod; 10. Limiting plate; 11. Second threaded rod; 12. Twist; 13. Collection cylinder; 14. Liquid inlet. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Example:
[0028] Please see Figure 1-5 A heat pipe network water loss protection device includes two symmetrically arranged pipes 1. The connection between the two pipes 1 is fitted with an upper protective cover 2 and a lower protective cover 3, which are symmetrically arranged. The upper protective cover 2 and the lower protective cover 3 are provided with knobs 4 at both ends of the outer side. A flange 5 is fixedly connected to one end of the pipe 1 on the inner side. A drainage groove 6 is provided below the lower protective cover 3. Detection mechanisms 8 are provided on both sides of the upper protective cover 2. A first threaded rod 9 is fixedly connected to the inner side of the knob 4. A limit plate 10 is provided at one end of the first threaded rod 9.
[0029] The detection mechanism 8 includes a second threaded rod 11, with a knob 12 fixedly connected to the top end of the second threaded rod 11 and a collection cylinder 13 fixedly connected to the bottom end of the second threaded rod 11. A set of liquid inlet holes 14 are provided on the side of the collection cylinder 13. The detection mechanism 8 is provided so as to facilitate the inspection personnel to detect water loss without affecting the stability of the protective device.
[0030] See Figure 1Sealing gaskets 7 are fixedly connected to the bottom surface of the upper cover 2 and the top surface of the lower cover 3. The sealing gaskets 7 are attached to the outside of the pipe 1. First, the lower cover 3 is fixed in the laying position. Then, the two pipes 1 are fixed above the lower cover 3 through flanges 5. Then, the upper cover 2 is placed symmetrically on the top surface of the lower cover 3 and the two covers are fixed with bolts so that the two pairs of sealing gaskets 7 are attached to the outer surface of the two pipes 1 respectively.
[0031] See Figure 3 The first threaded rod 9 passes through the lower cover 3 and is threadedly connected to the lower cover 3. Rotating the knob 4 causes the first threaded rod 9 to rotate.
[0032] See Figure 2 The limiting plate 10 is located inside the lower protective cover 3. The limiting plate 10 is slidably connected to the lower protective cover 3 and is adapted to the flange 5, so that the limiting plate 10 moves towards the flange 5. The limiting plate 10 fits against the side of the flange 5 to limit the flange 5, thereby improving the installation stability of the protective cover.
[0033] See Figure 3 A movable ring is fixedly connected to one end of the first threaded rod 9 near the limiting plate 10. The movable ring is movably connected to the limiting plate 10. When the first threaded rod 9 rotates, it moves and cooperates with the movable ring to make the limiting plate 10 slide inside the protective cover.
[0034] See Figure 4 The second threaded rod 11 is threadedly connected to the upper protective cover 2. The collecting cylinder 13 is located inside the lower protective cover 3. By turning the knob 12, the second threaded rod 11 is rotated outward, so that the collecting cylinder 13 moves out from the side of the lower protective cover 3. Then, the presence of water accumulation inside the collecting cylinder 13 is used to determine whether the connection of the pipe 1 is losing water. If water loss is found, the protective cover needs to be removed, and the pipe 1 needs to be repaired or replaced. If there is no water loss, the collecting cylinder 13 is rotated back to its original position. No extra work is required, and water loss detection can be performed on the next detection point, thus improving the efficiency of water loss inspection.
[0035] See Figure 5 The drainage channel 6 consists of two staggered grooves, and the horizontal groove below the drainage channel 6 is adapted to the liquid inlet hole 14. When water loss occurs at the connection of the two pipes 1, the seepage water flows into the drainage channel 6 and then enters the collection cylinder 13 through the horizontal position of the drainage channel 6 and the liquid inlet hole 14.
[0036] In use: First, fix the lower cover 3 in the laying position. Then, fix the two pipes 1 above the lower cover 3 through the flange 5. Next, place the upper cover 2 symmetrically on the top surface of the lower cover 3 and fix the two covers with bolts. Make the two pairs of sealing gaskets 7 fit against the outer surface of the two pipes 1 respectively. Turn the knob 4, which drives the first threaded rod 9 to rotate. With the help of the movable ring, the limiting plate 10 slides inside the protective cover and moves towards the flange 5, so that the limiting plate 10 fits against the side of the flange 5, limiting the flange 5 and thus improving the installation stability of the protective cover and reducing the problem of position displacement. When water loss occurs at the connection of the two pipes 1, seepage will occur. The liquid enters the drainage channel 6, and then enters the collection cylinder 13 through the horizontal position of the drainage channel 6 and the inlet hole 14. The upper protective cover 2 and the lower protective cover 3 work together to seal the water and reduce water loss. At the same time, the second threaded rod 11 is rotated outward by the knob 12, so that the collection cylinder 13 is moved out from the side of the lower protective cover 3. Then, the presence of water accumulation in the collection cylinder 13 is used to determine whether there is water loss at the connection of the pipe 1. If there is water loss, the protective cover needs to be removed and the pipe 1 needs to be repaired or replaced. If there is no water loss, the collection cylinder 13 is rotated back to its original position. No additional work is required, and the water loss detection work can be carried out at the next detection point, which improves the efficiency of water loss detection.
[0037] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.
[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A heat pipe network water loss protection device, comprising two symmetrically arranged pipes (1), with an upper protective cover (2) and a lower protective cover (3) symmetrically arranged on the outer side of the connection between the two pipes (1), and knobs (4) provided at both ends of the upper protective cover (2) and the lower protective cover (3), characterized in that: The pipe (1) is fixedly connected to a flange (5) at one end on the inner side. A drainage groove (6) is provided below the lower cover (3). Detection mechanisms (8) are provided on both sides of the upper cover (2). A first threaded rod (9) is fixedly connected to the inner side of the knob (4). A limit plate (10) is provided at one end of the first threaded rod (9). The detection mechanism (8) includes a second threaded rod (11), a knob (12) is fixedly connected to the top end of the second threaded rod (11), and a collection cylinder (13) is fixedly connected to the bottom end of the second threaded rod (11). A set of liquid inlet holes (14) are opened on the side of the collection cylinder (13).
2. The thermal pipeline water loss protection device according to claim 1, characterized in that: The bottom surface of the upper cover (2) and the top surface of the lower cover (3) are both fixedly connected with sealing gaskets (7), and the sealing gaskets (7) are in contact with the outside of the pipe (1).
3. The thermal pipeline water loss protection device according to claim 1, characterized in that: The first threaded rod (9) passes through the lower cover (3), and the first threaded rod (9) is threadedly connected to the lower cover (3).
4. The thermal pipeline water loss protection device according to claim 1, characterized in that: The limiting plate (10) is located inside the lower cover (3), the limiting plate (10) is slidably connected to the lower cover (3), and the limiting plate (10) is adapted to the flange (5).
5. A heat pipe network water loss protection device according to claim 1, characterized in that: The first threaded rod (9) has a movable ring fixedly connected to one end near the limiting plate (10), and the movable ring is movably connected to the limiting plate (10).
6. A thermal pipeline water loss protection device according to claim 1, characterized in that: The second threaded rod (11) is threadedly connected to the upper cover (2), and the collecting cylinder (13) is located inside the lower cover (3).
7. A heat pipe network water loss protection device according to claim 1, characterized in that: The drainage channel (6) is composed of two staggered grooves, and the groove horizontally arranged below the drainage channel (6) is adapted to the liquid inlet hole (14).