Condenser valve port insert of stainless steel
The dynamic sealing design, which combines stainless steel inserts with O-rings, solves the problems of easy wear and sealing failure in condenser valves, achieving high reliability and long service life sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU DULING CONTROLLER CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-05
AI Technical Summary
The valve body of the existing condensate valve is easily worn by the impact of sediment particles in tap water, which leads to a decrease in sealing performance and a risk of leakage. In addition, manufacturing errors and differences in thermal expansion can cause seal failure and shorten service life.
It adopts a stainless steel insert design, combined with an O-ring seal and push ring structure, and achieves dynamic sealing through interference fit and spring connection. It adapts to water pressure fluctuations and mechanical vibration, prevents displacement and rotation, and ensures that the sealing surface is perpendicular to the water flow direction.
It effectively reduces leakage caused by manufacturing errors or differences in thermal expansion, improves sealing reliability, extends the service life of condensate valves, and prevents valve port damage.
Smart Images
Figure CN224326783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condensing valves, and in particular to a stainless steel insert for the valve port of a condensing valve. Background Technology
[0002] Condensation valves, as a crucial fluid control component, are widely used in various scenarios in industrial production and daily life. In refrigeration systems, they can precisely regulate refrigerant flow based on pressure changes, maintaining stable system operation. In hot water circulation systems, they can automatically open and close based on temperature or pressure fluctuations, ensuring efficient circulation and stable supply of hot water. Furthermore, condensation valves are also vital in chemical production for controlling the flow of various chemical media, ensuring that chemical processes proceed smoothly according to preset parameters.
[0003] Currently, most condensate valve bodies are made of copper alloy and rely on surface treatment to enhance performance. However, copper is relatively soft and easily worn by sediment particles in tap water, leading to valve port damage and affecting the valve's sealing performance, causing leakage. In addition, the fit between the traditional copper valve port and valve body has manufacturing errors, and the sealing structure is simple. After long-term use, the seal is prone to failure due to water pressure fluctuations, mechanical vibrations, or differences in thermal expansion, resulting in a high risk of leakage and shortening the service life of the condensate valve. To address these issues, a stainless steel insert for the condensate valve port is proposed. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a stainless steel insert for the valve port of a condensing valve, which aims to improve the problem in the prior art that "the seal fails after long-term use, resulting in a high risk of leakage and shortening the service life of the condensing valve".
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a stainless steel insert for a condensing valve port, comprising a valve body and a valve nest, valve nozzles being provided on the left and right sides of the valve body, an O-ring seal being provided between the valve nest and the valve body, a groove for accommodating the O-ring seal being provided on the circumferential surface of the valve nest, a push ring and a ring seat being provided inside the valve nest, a fixing ring being fixedly connected to the bottom of the inner wall of the valve nest, a limiting block being fixedly connected to the inner wall of the valve nest, a groove for cooperating with the limiting block being provided on the surface of the push ring, the bottom of the push ring being elastically connected to the top of the fixing ring by a spring, a protruding ring being provided on the top of the push ring, an inner annular groove for accommodating the protruding ring being provided on the bottom of the ring seat, the bottom of the ring seat contacting the top of the push ring, and an O-ring seal being provided inside the inner annular groove.
[0006] As a further description of the above technical solution:
[0007] The valve body has a valve port inside.
[0008] As a further description of the above technical solution:
[0009] The valve body is manufactured as a single piece.
[0010] As a further description of the above technical solution:
[0011] The valve nest is configured as a hollow cylinder.
[0012] As a further description of the above technical solution:
[0013] The inner diameter of the valve nest is equal to the outer diameter of the push ring, and the outer diameter of the push ring is equal to the outer diameter of the ring seat.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the valve nest fits against the inner wall of the valve body.
[0016] As a further description of the above technical solution:
[0017] The valve nest and the valve body are interference fit.
[0018] As a further description of the above technical solution:
[0019] The depth of the inner annular groove is smaller than the sum of the thickness of the O-ring seal and the thickness of the convex ring.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the interference fit between the outer wall of the valve nest and the inner wall of the valve body fills the tiny gap. Combined with the elastic sealing characteristics of the first O-ring seal, the second O-ring seal between the push ring and the ring seat achieves dynamic sealing during the displacement process of the valve nest by the depth design of the inner annular groove, thereby reducing leakage problems caused by manufacturing errors or thermal expansion differences.
[0022] 2. In this utility model, the elastic connection design of the spring ensures that the push ring and the ring seat always maintain contact pressure, adapting to water pressure fluctuations or mechanical vibrations and maintaining sealing performance. The matching structure of the limiting block and the groove prevents the push ring from shifting and ensures that the sealing surface is stably aligned. At the same time, the locking of the limiting block and the groove prevents rotation and ensures that the sealing surface is always perpendicular to the water flow direction, further improving the sealing reliability. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0024] Figure 2 This is a schematic cross-sectional view of the overall three-dimensional exploded structure of this utility model;
[0025] Figure 3This is a three-dimensional exploded structural diagram of the valve nesting, limiting block and O-ring in this utility model;
[0026] Figure 4 This is a three-dimensional cross-sectional view of the valve nesting structure in this utility model;
[0027] Figure 5 This is a three-dimensional exploded view of the push ring, ring seat, and spring in this utility model;
[0028] Figure 6 This is a top view of the three-dimensional structure of the ring seat in this utility model.
[0029] Legend:
[0030] 11. Valve body; 12. Valve port; 13. Valve nozzle; 21. Valve nest; 22. Limiting block; 23. Fixing ring; 24. O-ring one; 25. Resettling groove; 31. Push ring; 32. Groove; 33. Spring; 34. Raised ring; 41. Ring seat; 42. Inner annular groove; 43. O-ring two. Detailed Implementation
[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 and Figure 2 The present invention provides an embodiment of a stainless steel insert for a condensing valve port, comprising a valve body 11 and a valve nest 21. The valve body 11 serves as the basic component of the condensing valve and is integrally molded to ensure the strength and stability of the overall structure. A valve port 12 is provided inside the valve body 11, and valve nozzles 13 are provided on the left and right sides of the valve body 11 for connecting pipes and other components to realize the entry and exit of fluid.
[0033] Reference Figures 1-3 An O-ring 24 is provided between the valve nest 21 and the valve body 11 to effectively prevent fluid leakage and ensure the sealing performance of the condenser valve. The valve nest 21 is a hollow cylinder, and the circumferential surface of the valve nest 21 is provided with a groove 25 for accommodating the O-ring 24, which serves to seal and enhance the wear resistance of the valve port 12.
[0034] Reference Figure 2 and Figure 3The outer wall of the valve nest 21 fits against the inner wall of the valve body 11. The valve nest 21 and the valve body 11 are interference fit to improve sealing. The valve nest 21 is provided with a push ring 31 and a ring seat 41. The inner diameter of the valve nest 21 is equal to the outer diameter of the push ring 31, and the outer diameter of the push ring 31 is equal to the outer diameter of the ring seat 41.
[0035] Reference Figures 4-6 A fixing ring 23 is fixedly connected to the bottom of the inner wall of the valve nest 21, and a limiting block 22 is fixedly connected to the inner wall of the valve nest 21. The surface of the push ring 31 is provided with a groove 32 that cooperates with the limiting block 22. The bottom of the push ring 31 is elastically connected to the top of the fixing ring 23 through a spring 33, and the spring 33 applies an upward elastic force to the push ring 31.
[0036] Reference Figures 4-6 The push ring 31 has a protruding ring 34 at its top and an inner annular groove 42 at its bottom for accommodating the protruding ring 34. The bottom of the ring seat 41 contacts the top of the push ring 31. An O-ring 43 is provided inside the inner annular groove 42. The depth of the inner annular groove 42 is smaller than the sum of the thickness of the O-ring 43 and the thickness of the protruding ring 34, further improving the sealing reliability.
[0037] Working principle: When the condenser valve is in use, water flows from the valve nozzle 13 of the valve body 11 into the valve port 12. Under the action of water pressure, the ring seat 41 moves downward due to the impact force of the water flow, compressing the spring 33 and causing the push ring 31 to move towards the fixed ring 23. At this time, the convex ring 34 of the push ring 31 is tightly fitted with the inner annular groove 42 of the ring seat 41. The O-ring seal 43 is compressed and deformed under the action of the difference between the groove depth and the seal thickness, forming a dynamic seal. At the same time, the groove 32 of the push ring 31 is engaged with the limiting block 22 to prevent it from rotating, ensuring that the sealing surface is always perpendicular to the water flow direction.
[0038] The outer wall of the valve nest 21 and the inner wall of the valve body 11 are tightly fitted by an interference fit. The O-ring seal 24 fills the tiny gap between them, eliminating leakage caused by manufacturing errors or thermal expansion differences. Under the elastic force of the spring 33, the push ring 31 and the ring seat 41 always maintain contact pressure. Even if the water pressure fluctuates or the mechanical vibration is strong, the sealing performance can be maintained by the buffering effect of the spring 33. Finally, the water flows out through the valve port 12. Throughout the process, the sealing structure effectively resists the impact and wear of mud and sand particles through dynamic adjustment and multiple sealing design, prevents the valve port 12 from breaking, and extends the service life of the condensate valve.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stainless steel insert for a condensing valve port, comprising a valve body (11) and a valve nest (21), characterized in that: The valve body (11) has valve nozzles (13) on its left and right sides. An O-ring seal (24) is provided between the valve nest (21) and the valve body (11). The circumferential surface of the valve nest (21) is provided with a mounting groove (25) for accommodating the O-ring seal (24). The valve nest (21) has a push ring (31) and a ring seat (41) inside. A fixing ring (23) is fixedly connected to the bottom of the inner wall of the valve nest (21). A limit block (22) is fixedly connected to the inner wall of the valve nest (21). The push ring... The surface of (31) and the surface of the ring seat (41) are both provided with grooves (32) that cooperate with the limiting block (22). The bottom of the push ring (31) is elastically connected to the top of the fixed ring (23) by a spring (33). The top of the push ring (31) is provided with a protruding ring (34). The bottom of the ring seat (41) is provided with an inner annular groove (42) for accommodating the protruding ring (34). The bottom of the ring seat (41) is in contact with the top of the push ring (31). The inner annular groove (42) is provided with an O-ring seal (43).
2. The stainless steel insert for the condenser valve port according to claim 1, characterized in that: The valve body (11) has a valve port (12) inside.
3. The stainless steel insert for the condensate valve port according to claim 1, characterized in that: The valve body (11) is manufactured as a single piece.
4. The stainless steel insert for the condensate valve port according to claim 1, characterized in that: The valve nest (21) is configured as a hollow cylinder.
5. The stainless steel insert for the condensate valve port according to claim 1, characterized in that: The inner diameter of the valve nest (21) is equal to the outer diameter of the push ring (31), and the outer diameter of the push ring (31) is equal to the outer diameter of the ring seat (41).
6. The stainless steel insert for the condensate valve port according to claim 1, characterized in that: The outer wall of the valve nest (21) is fitted with the inner wall of the valve body (11).
7. The stainless steel insert for the condensate valve port according to claim 1, characterized in that: The valve nest (21) and the valve body (11) are interference fit.
8. The stainless steel insert for the condensate valve port according to claim 1, characterized in that: The depth of the inner annular groove (42) is smaller than the sum of the thickness of the second O-ring seal (43) and the thickness of the convex ring (34).