Pressure relief protection device of steam heat supply system
By designing a pressure relief protection device that includes a steam safety valve, conduit, collection box, and condensation equipment in the steam heating system, the environmental and personnel injury problems caused by pipeline leakage are solved, real-time monitoring of leakage and steam condensation treatment are realized, and environmental impact is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-13
AI Technical Summary
Existing steam heating system pressure relief protection devices are prone to causing environmental and personnel harm due to pipeline leaks, and cannot effectively reduce the impact of steam on the surrounding environment.
A pressure relief protection device was designed, which includes a steam safety valve, a conduit, a collection box, a semi-circular pipe, a pressure sensor, and a steam condensation device. The device monitors leaks through the sensor and uses the condensation device to condense steam into water for collection, thereby reducing environmental impact.
Effectively monitor and prevent pipeline leaks, reduce harm to the environment and people, and reduce the impact of steam on the surrounding environment through condensation.
Smart Images

Figure CN223992304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pressure relief protection devices, and in particular to a pressure relief protection device for a steam heating system. Background Technology
[0002] A steam heating system is a system that provides heat in the form of steam. Specifically, in urban centralized heating systems, water is used as the heating medium, and heat is carried from the heat source to the user via a heating network in the form of steam. A steam heating system pressure relief device is a device specifically designed for use in steam heating systems to prevent safety accidents caused by excessive internal pressure. This device monitors pressure changes in the steam heating system and automatically performs pressure relief when the pressure exceeds a set value, thereby protecting the stable operation of the system. Currently, steam heating system pressure relief devices typically use steam safety valves and pipelines for pressure relief. However, pipelines may leak after prolonged use, potentially causing steam to harm the surrounding environment or people. Utility Model Content
[0003] This invention provides a pressure relief protection device for a steam heating system, which solves the problems in the background art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A pressure relief protection device for a steam heating system includes a steam safety valve, one end of which is connected to a conduit, and the other end of which is connected to a collection box.
[0006] The surface of the conduit is connected to a first semi-circular tube and a second semi-circular tube, and a pressure sensor is installed at the top of the first semi-circular tube.
[0007] The bottom end of the first semicircular tube is connected to a locking block, and the top end of the second semicircular tube is provided with a locking groove that connects to the locking block.
[0008] As a further description of the above technical solution:
[0009] The collection box is equipped with a steam condensation device.
[0010] As a further description of the above technical solution:
[0011] The first semicircular tube and the second semicircular tube are respectively connected to connecting plates at both ends, and the surface of the connecting plates is provided with threaded grooves. The surface of the conduit is movably fitted with an annular mounting plate, and the inner wall of the mounting plate is connected with a rack. The surface of the rack is connected with a gear, and the surface of the gear is connected with a threaded rod that is connected to the threaded groove.
[0012] As a further description of the above technical solution:
[0013] The mounting plate has a groove at its bottom interior, and a slider that is rotatably connected to the threaded rod is slidably connected inside the groove.
[0014] As a further description of the above technical solution:
[0015] One side of the connecting plate is provided with a baffle that is movably connected to the conduit.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0017] In this invention, the conduit can be wrapped by the first semi-circular tube and the second semi-circular tube set on the surface of the conduit. At the same time, the pressure sensor set on the first semi-circular tube can monitor whether the conduit is leaking, so as to avoid the conduit leaking due to long-term use and causing harm to the surrounding environment or people. In addition, the steam condensation device set inside the collection box can condense the steam into water and collect it, thereby reducing the impact of steam on the surrounding environment. Attached Figure Description
[0018] Figure 1 A schematic diagram of a pressure relief protection device for a steam heating system;
[0019] Figure 2 This is a schematic diagram of the surface structure of the first semicircular tube and the second semicircular tube in this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the mounting plate in this utility model.
[0021] Legend:
[0022] 1. Steam safety valve; 2. Conduit; 3. Collection box; 4. First semi-circular tube; 5. Second semi-circular tube; 6. Pressure sensor; 7. Locking block; 8. Locking groove; 9. Connecting plate; 10. Mounting plate; 11. Rack; 12. Gear; 13. Threaded rod; 14. Slide groove; 15. Sliding block; 16. Baffle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figures 1-3A pressure relief protection device for a steam heating system includes a steam safety valve 1, one end of which is connected to a conduit 2, and the other end of which is connected to a collection box 3. A first semi-circular tube 4 and a second semi-circular tube 5 are connected to the surface of the conduit 2, and a pressure sensor 6 is installed at the top of the first semi-circular tube 4. A locking block 7 is connected to the bottom of the first semi-circular tube 4, and a locking groove 8 connected to the locking block 7 is opened at the top of the second semi-circular tube 5. By cooperating with the first semi-circular tube 4 and the second semi-circular tube 5, the conduit 2 can be wrapped to facilitate the monitoring of whether the conduit 2 is leaking by the pressure sensor 6, so as to avoid the leaked steam from causing harm to the surrounding environment or personnel.
[0025] Furthermore, the collection box 3 is equipped with a steam condensation device. The collection box 3 and the steam condensation device can condense the steam into water and collect it, reducing the impact of steam on the surrounding environment.
[0026] Furthermore, connecting plates 9 are connected to both ends of the first semicircular tube 4 and the second semicircular tube 5, and the surface of the connecting plate 9 is provided with a threaded groove. An annular mounting plate 10 is movably sleeved on the surface of the guide tube 2, and a rack 11 is connected to the inner wall of the mounting plate 10. A gear 12 is connected to the surface of the rack 11, and a threaded rod 13 connected to the threaded groove is connected to the surface of the gear 12. By rotating the mounting plate 10, the rack 11 on its inner wall can rotate on the surface of the gear 12, thereby allowing the gear 12 to drive the threaded rod 13 to rotate inside the threaded groove, so that the threaded rod 13 can be removed from inside the threaded groove on the surface of the connecting plate 9. This allows the first semicircular tube 4 and the second semicircular tube 5 to be disassembled, and conversely, it also facilitates their installation.
[0027] Furthermore, a groove 14 is provided at the bottom of the mounting plate 10, and a slider 15 is slidably connected inside the groove 14 and rotatably connected to the threaded rod 13. This facilitates the mounting plate 10 to move on the surface of the threaded rod 13 via the slider 15 and the groove 14, and also facilitates the threaded rod 13 to rotate on the surface of the slider 15.
[0028] Furthermore, a baffle 16 is provided on one side of the connecting plate 9, which is movably connected to the conduit 2. The baffle 16 is used to block the two ends of the first semi-circular tube 4 and the second semi-circular tube 5 to prevent leaked steam from flowing out from both sides and affecting the monitoring of the pressure sensor 6. A threaded groove connected to the threaded rod 13 is also provided on one side of the baffle 16.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pressure relief protection device for a steam heating system, comprising a steam safety valve (1), characterized in that: One end of the steam safety valve (1) is connected with a pipe (2), and the other end of the pipe (2) is connected with a collection box (3); The surface of the pipe (2) is connected with a first semicircular pipe (4) and a second semicircular pipe (5), and the top end of the first semicircular pipe (4) is provided with a pressure sensor (6); The bottom end of the first semicircular pipe (4) is connected with a clamping block (7), and the top end of the second semicircular pipe (5) is provided with a clamping groove (8) connected with the clamping block (7).
2. A pressure relief protection device for a steam heating system as defined in claim 1, wherein: The inside of the collection box (3) is provided with a steam condensing device.
3. A pressure relief protection device for a steam heating system as defined in claim 1, wherein: The two ends of the first semicircular pipe (4) and the second semicircular pipe (5) are respectively connected with a connecting plate (9), and the surface of the connecting plate (9) is provided with a threaded groove, the surface of the pipe (2) is movably sleeved with an annular mounting plate (10), the inner wall of the mounting plate (10) is connected with a rack (11), the surface of the rack (11) is connected with a gear (12), and the surface of the gear (12) is connected with a threaded rod (13) connected with the threaded groove.
4. A pressure relief protection device for a steam heating system as defined in claim 3, wherein: The inside bottom end of the mounting plate (10) is provided with a sliding groove (14), and the inside of the sliding groove (14) is slidably connected with a sliding block (15) rotatably connected with the threaded rod (13).
5. A pressure relief protection device for a steam heating system as defined in claim 3, wherein: One side of the connecting plate (9) is provided with a baffle (16) movably connected with the pipe (2).