A heating conduit control valve

Abstract

The utility model relates to control valve technical field especially relates to a heat supply pipeline control valve. The heat supply pipeline control valve includes the valve body, installs the flow resistance component in the valve body, and installs the threaded butt joint on the valve body, installs the early warning component on the threaded butt joint. The heat supply pipeline control valve provided by the utility model when the valve body water liquid normal flow, the valve body water body all is by the non - resistance drainage interface, and when the valve body water liquid back flow, the water inlet interface is sealed by the sealing disc at this moment, so the water liquid enters the threaded sleeve and up and reaches the piston disc, and then drives the piston disc to slide and compresses to spring B, until the piston disc on the head and the contact piece type switch contact each other after this time, the audible and visual alarm carries out audible and visual early warning, therefore the staff can know that the heat supply pipeline has the security risk fast, so as to maintain the equipment and pipeline in time.

Description

Technical Field

[0001] This utility model relates to the field of control valve technology, and in particular to a control valve for heating pipelines. Background Technology

[0002] In centralized heating systems, heating pipeline control valves are core components for regulating hot water flow and pressure and preventing system malfunctions. They are widely used in heating networks in residential communities, commercial buildings, and industrial plants. Their performance directly affects the stability, energy efficiency, and safety of the heating system, thus creating a demand for control valves. Traditional control valves often employ rigid sealing structures (such as fixed valve cores), which cannot flexibly adjust the starting water pressure required for water flow according to heating demand. If the seal is too tight, hot water cannot flow normally under low water pressure, resulting in insufficient heating for end users. If the seal is too loose, leakage is likely to occur under high water pressure, causing energy waste. Furthermore, due to local pipeline pressure fluctuations (such as pump failure or valve misoperation), hot water backflow is prone to occur in the heating network. Although some existing control valves have one-way sealing functions (such as check valve structures), they cannot provide real-time warnings of backflow. Therefore, backflow is usually only detected through abnormal pipeline pressure or water quality problems at the user end, by which time secondary failures such as pipeline corrosion and pump damage may have already occurred.

[0003] Therefore, it is necessary to provide a new control valve for heating pipelines to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a control valve for heating pipelines.

[0005] The heating pipeline control valve provided by this utility model includes a valve body, one end of which is equipped with a water inlet, and the end of the water inlet is fixedly equipped with an abutment ring. The valve body is also equipped with a drain interface that is perpendicular to the water inlet.

[0006] The valve body is equipped with a flow-blocking component, and the flow-blocking component includes an operating rod. The operating rod is threadedly connected to the valve body, and the insertion end of the operating rod is equipped with a resiliently connected sealing disc, which abuts against the edge of the abutting ring.

[0007] A threaded interface that communicates with the valve body is fixedly installed on the side of the valve body away from the water inlet. An early warning component is installed on the threaded interface. The early warning component includes a threaded sleeve that is threadedly connected to the threaded interface. An audible and visual alarm for warning of water backflow and a piston disc for triggering the audible and visual alarm are installed on the threaded sleeve.

[0008] Preferably, the audible and visual alarm is fixedly installed on the top of the threaded sleeve, and the audible and visual alarm is electrically connected to a contact switch. The contact switch is fixedly installed on the inner top wall of the threaded sleeve. The piston disc is slidably installed inside the threaded sleeve, and an abutment head is fixedly installed on the top of the piston disc. A spring B is fixedly installed on the upper surface of the piston disc, and the other end of the spring B is fixedly connected to the inner top wall of the threaded sleeve.

[0009] Preferably, a limiting ring for supporting the piston disc is fixedly installed on the inner wall of the threaded sleeve near the opening.

[0010] Preferably, the operating rod is provided with a threaded part, and the threaded part is threadedly connected to the threaded through hole opened at the end of the valve body. A coaxial connecting rod is fixedly installed on the inner surface of the sealing disc, and the connecting rod is inserted into the mounting cavity opened on the operating rod and slidably connected to the mounting cavity. A spring A is provided in the mounting cavity.

[0011] Preferably, rotating rings are fixedly installed at both ends of the spring A. The rotating ring at one end of the spring A is rotatably connected to the inner end wall of the mounting cavity, and the rotating ring at the other end of the spring A is rotatably connected to the insertion end of the connecting rod.

[0012] Preferably, the flow-blocking component further includes a guide frame, which is fixedly installed in the valve body, and the operating rod passes through a guide hole opened in the guide frame and is slidably connected to the guide hole.

[0013] Preferably, a knob is fixedly installed on the operating rod located on the outside of the valve body.

[0014] Compared with related technologies, the heating pipeline control valve provided by this utility model has the following beneficial effects:

[0015] 1. When water enters the valve body through the inlet, the sealing ring is sealed by the sealing disc. When the water pressure on the sealing disc is greater than the elastic force of spring A, the sealing disc slides along the mounting cavity through the central connecting rod and compresses spring A, thus achieving effective water flow. If the knob is turned to drive the operating rod to screw into the valve body through the threaded part, the spring A between the operating rod and the central connecting rod is compressed, thus increasing the water pressure required for flow in the valve body. Conversely, the pressure is lower. Therefore, the required water pressure for water flow in the heating pipeline can be flexibly adjusted according to the needs.

[0016] 2. When the water in the valve body is flowing normally, the water in the valve body is discharged through the unobstructed drain port. However, when the water in the valve body flows back, the inlet port is sealed by the sealing plate, so the water enters the threaded sleeve and pushes against the piston plate, thereby driving the piston plate to slide and compress the spring B until the contact head on the piston plate contacts the contact switch. At this time, the sound and light alarm will give an audible and visual warning, so that the staff can quickly know that there is a safety hazard in the heating pipeline, so as to maintain the equipment and pipeline in time. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the heating pipeline control valve provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the installation structure of the flow-blocking component and the warning component in a sectional view of the valve body.

[0019] Figure 3 for Figure 2 A cross-sectional view of the valve body shown.

[0020] Figure 4 for Figure 2 The diagram shows the structure of the flow-blocking component.

[0021] Figure 5 for Figure 2 The diagram shows the structure of the warning component.

[0022] The following are the labeling elements in the diagram: 1. Valve body; 11. Inlet port; 12. Drain port; 13. Engaging ring edge; 14. Threaded through hole; 15. Threaded mating port; 2. Flow-blocking component; 21. Operating lever; 21a. Mounting cavity; 211. Knob; 22. Threaded part; 23. Sealing disc; 231. Connecting rod; 24. Spring A; 241. Rotating ring; 25. Guide frame; 3. Warning component; 31. Threaded sleeve; 311. Limit ring; 32. Audible and visual alarm; 321. Contact switch; 33. Piston disc; 331. Engaging head; 34. Spring B. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 5The present invention provides a heating pipeline control valve, which includes a valve body 1, a flow-blocking component 2, and an early warning component 3.

[0026] In the embodiments of this utility model, please refer to Figures 1 to 5 One end of the valve body 1 is equipped with a water inlet 11, and the end of the water inlet 11 is fixedly equipped with an abutment ring 13. The valve body 1 is also equipped with a drain interface 12 that is perpendicular to the water inlet 11.

[0027] The valve body 1 contains a flow-blocking component 2, which includes an operating rod 21. The operating rod 21 is threadedly connected to the valve body 1, and a resiliently connected sealing disc 23 is installed at the insertion end of the operating rod 21. The sealing disc 23 abuts against the abutment ring 13. Specifically,

[0028] The operating lever 21 is provided with a threaded part 22, and the threaded part 22 is threadedly connected to the threaded through hole 14 opened at the end of the valve body 1. The inner surface of the sealing disc 23 is fixedly installed with a coaxially arranged central connecting rod 231, and the central connecting rod 231 is inserted into the mounting cavity 21a opened in the operating lever 21 and slidably connected to the mounting cavity 21a. A spring A24 is provided in the mounting cavity 21a, and rotating rings 241 are fixedly installed at both ends of the spring A24. The rotating ring 241 at one end of the spring A24 is rotatably connected to the inner end wall of the mounting cavity 21a, and the rotating ring 241 at the other end of the spring A24 is rotatably connected to the insertion end of the central connecting rod 231. A knob 211 is fixedly installed on the operating lever 21 located on the outside of the valve body 1.

[0029] It should be noted that: Valve body 1 is connected to two heating pipes through water inlet 11 and drain 12. When water enters valve body 1 through water inlet 11, the sealing ring 13 is sealed by sealing disc 23. When the water pressure on sealing disc 23 is greater than the elastic force of spring A24, sealing disc 23 slides along mounting cavity 21a through central connecting rod 231 and compresses spring A24, thus achieving effective water flow.

[0030] When the knob 211 is turned to drive the operating rod 21 to screw into the valve body 1 through the threaded part 22, the spring A24 between the operating rod 21 and the connecting rod 231 is compressed, so the water pressure required for the flow in the valve body 1 increases, and vice versa. Therefore, the water pressure required for the flow of water in the heating pipeline can be flexibly adjusted according to the needs.

[0031] It should also be noted that when water backflow occurs in valve body 1, water enters valve body 1 through drain port 12. Since the sealing plate 23 has sealed the water inlet port 11 under the action of spring A24, the water in valve body 1 is prevented from backflowing into the previous heating pipe.

[0032] Furthermore, the flow-blocking component 2 also includes a guide frame 25, which is fixedly installed inside the valve body 1. The operating rod 21 passes through the guide through hole opened in the guide frame 25 and is slidably connected to the guide through hole. Thus, when the rotating operating rod 21 drives the operating rod 21 to travel through the threaded part 22 along the threaded through hole 14 into or out of the valve body 1, the designed guide frame 25 can enhance the stability of the operating rod 21 during movement.

[0033] In the embodiments of this utility model, please refer to Figures 1 to 5 A threaded interface 15, communicating with the valve body 1, is fixedly installed on the side of the valve body 1 away from the water inlet 11. A warning component 3 is installed on the threaded interface 15. The warning component 3 includes a threaded sleeve 31, which is threadedly connected to the threaded interface 15. The threaded sleeve 31 is equipped with an audible and visual alarm 32 for warning of water backflow and a piston disc 33 for triggering the audible and visual alarm 32. Specifically...

[0034] The audible and visual alarm 32 is fixedly installed on the top of the threaded sleeve 31, and the audible and visual alarm 32 is electrically connected to a contact switch 321. The contact switch 321 is fixedly installed on the inner top wall of the threaded sleeve 31. The piston disc 33 is slidably installed inside the threaded sleeve 31, and an abutment head 331 is fixedly installed on the top of the piston disc 33. A spring B34 is fixedly installed on the upper surface of the piston disc 33, and the other end of the spring B34 is fixedly connected to the inner top wall of the threaded sleeve 31. A limiting ring 311 for supporting the piston disc 33 is fixedly installed on the inner wall of the threaded sleeve 31 near the opening.

[0035] It should be noted that when the water in the valve body 1 flows normally, the water in the valve body 1 is discharged through the unobstructed drain port 12. However, when the water in the valve body 1 flows back, the inlet port 11 is sealed by the sealing plate 23. Therefore, the water enters the threaded sleeve 31 and pushes against the piston plate 33, which in turn drives the piston plate 33 to slide and compress against the spring B34 until the contact head 331 on the piston plate 33 contacts the contact switch 321. At this time, the audible and visual alarm 32 will provide an audible and visual warning, so that the staff can quickly know that there is a safety hazard in the heating pipeline and maintain the equipment and pipeline in time.

[0036] To improve the battery life of the audible and visual alarm 32, a small backup battery compartment can be added to the top of the threaded sleeve 31. This compartment can house 1-2 rechargeable lithium batteries (such as 18650 lithium batteries) and include an automatic power switching module. When the external power supply is normal, the battery is in a charging state. If the external power supply is disconnected, the module automatically switches to the backup battery to ensure that the audible and visual alarm 32 continues to work (with a battery life of no less than 72 hours). Additionally, a power indicator light is added to the outside of the threaded sleeve 31 to remind staff to check the battery level regularly to prevent the battery from running out of power.

[0037] In addition, if the warning component 3 is not required, the threaded sleeve 31 can be removed from the threaded interface 15, and then the threaded sealing post can be installed on the threaded interface 15.

[0038] Furthermore, in order to eliminate the potential risk of spring A24 and spring B34 rusting and causing elastic failure, both spring A24 and spring B34 are made of stainless steel or titanium alloy to improve corrosion resistance. At the same time, a polytetrafluoroethylene (PTFE) coating is applied to the surface of spring A24 and spring B34 to enhance rust prevention.

[0039] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heating pipeline control valve, comprising a valve body (1), wherein a water inlet (11) is installed at one end of the valve body (1), and an abutment ring (13) is fixedly installed at the end of the water inlet (11), and a drain outlet (12) is also installed on the valve body (1) perpendicular to the water inlet (11), characterized in that: The valve body (1) is equipped with a flow-blocking component (2), and the flow-blocking component (2) includes an operating rod (21). The operating rod (21) is threadedly connected to the valve body (1), and the insertion end of the operating rod (21) is equipped with a flexible sealing disc (23). The sealing disc (23) abuts against the abutting ring edge (13). A threaded interface (15) communicating with the valve body (1) is fixedly installed on the side away from the water inlet (11), and a warning component (3) is installed on the threaded interface (15). The warning component (3) includes a threaded sleeve (31), which is threadedly connected to the threaded interface (15). A sound and light alarm (32) for warning of water backflow and a piston disc (33) for triggering the sound and light alarm (32) are installed on the threaded sleeve (31).

2. The heating pipeline control valve according to claim 1, characterized in that, The audible and visual alarm (32) is fixedly installed on the top of the threaded sleeve (31), and the audible and visual alarm (32) is electrically connected to a contact switch (321). The contact switch (321) is fixedly installed on the inner top wall of the threaded sleeve (31). The piston disc (33) is slidably installed inside the threaded sleeve (31), and an abutment head (331) is fixedly installed on the top of the piston disc (33). A spring B (34) is fixedly installed on the upper surface of the piston disc (33), and the other end of the spring B (34) is fixedly connected to the inner top wall of the threaded sleeve (31).

3. The heating pipeline control valve according to claim 2, characterized in that, A limiting ring (311) for supporting the piston disc (33) is fixedly installed on the inner wall of the threaded sleeve (31) near the opening.

4. The heating pipeline control valve according to claim 1, characterized in that, The operating lever (21) is provided with a threaded part (22), and the threaded part (22) is threadedly connected to the threaded through hole (14) opened at the end of the valve body (1). The inner surface of the sealing disc (23) is fixedly installed with a coaxially arranged central connecting rod (231), and the central connecting rod (231) is inserted into the mounting cavity (21a) opened by the operating lever (21) and slidably connected to the mounting cavity (21a). A spring A (24) is provided in the mounting cavity (21a).

5. The heating pipeline control valve according to claim 4, characterized in that, Both ends of the spring A (24) are fixedly installed with rotating rings (241). The rotating ring (241) at one end of the spring A (24) is rotatably connected to the inner end wall of the mounting cavity (21a), and the rotating ring (241) at the other end of the spring A (24) is rotatably connected to the insertion end of the connecting rod (231).

6. The heating pipeline control valve according to claim 5, characterized in that, The flow-blocking component (2) also includes a guide frame (25), which is fixedly installed inside the valve body (1), and the operating rod (21) passes through the guide through hole opened in the guide frame (25) and is slidably connected to the guide through hole.

7. The heating pipeline control valve according to claim 6, characterized in that, A knob (211) is fixedly installed on the operating lever (21) located on the outside of the valve body (1).

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