Multifunctional safety valve
By designing a multi-functional safety valve with a two-stage valve body assembly, the problems of single function and safety hazards of traditional safety valves are solved. It realizes multi-stage pressure relief and emergency pressure reduction, thereby enhancing the safety and applicability of the equipment.
Patent Information
- Application Number
- CN202520293278.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Traditional safety valves have a single function and cannot meet the needs of multi-stage pressure relief. In case of emergencies, they cannot reduce pressure in a timely and effective manner, which poses a safety hazard.
A multi-functional safety valve was designed, comprising a two-stage valve body assembly, which releases pressure at different pressure values, and in emergency situations, the secondary valve body assembly acts as a tolerance safety valve to promptly reduce pressure.
It features multi-stage pressure relief, enhancing applicability and effectively preventing equipment damage, leakage, or explosion in emergencies, providing more comprehensive safety assurance.
Smart Images
Figure CN223708671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of safety valve belongs to a kind of multifunctional safety valve. BACKGROUND
[0002] In various industrial production systems, pipeline transportation networks and civil facilities, safety valves, as key equipment to ensure the safe and stable operation of the system, play a crucial role.
[0003] In the current field of safety valve applications, traditional safety valves generally have the problem of single function. They mostly only have single-stage pressure relief function and can only open the valve for pressure relief operation when the pressure rises to a predetermined value. However, many devices today require different pressure relief levels for different use conditions, which requires safety valves to have multi-stage pressure relief function. In addition, single-stage pressure relief safety valves also have a big hidden danger in safety. When a device fails suddenly or a user makes a mistake, the system pressure may rise sharply. In such an emergency, the single-stage pressure relief method may not be able to reduce the pressure in time and effectively, causing the device and safety valve to bear too much pressure, which may cause serious safety accidents such as device damage, leakage and even explosion, posing a great threat to personnel life and property safety. SUMMARY
[0004] To solve the above technical problems, the utility model provides a kind of multifunctional safety valve.
[0005] To achieve the above purpose, the utility model provides the following technical scheme:
[0006] The present application provides a kind of multifunctional safety valve, including valve body and end cover, the valve body is opened with one-stage valve cavity and the two-stage valve cavity located in one-stage valve cavity upper, the end cover is connected with valve body upper end, one-stage valve cavity is equipped with one-stage valve assembly, the two-stage valve cavity is equipped with two-stage valve assembly, the valve body is opened with first pressure relief port and second pressure relief port, the first pressure relief port is connected to one-stage valve cavity, the second pressure relief port is connected to two-stage valve cavity.
[0007] As preferred, the middle part of the end cover is provided with a mounting hole, the mounting hole penetrates the end cover, the outer side of the end cover is provided with an outer ring layer and an inner ring layer, and the mounting groove is formed between the outer ring layer and the inner ring layer.
[0008] As preferred, the top end of the valve body is provided with a connecting ring, the connecting ring is connected with the mounting groove, the inner side of the connecting ring is provided with a sealing platform, the sealing platform is correspondingly arranged with the inner ring layer, and a sealing ring is arranged between the sealing platform and the inner ring layer.
[0009] As preferred, the secondary valve assembly comprises a secondary valve rod, a secondary pressure bearing piece and a secondary valve body spring, the secondary valve rod is connected with the mounting hole through the shaft hole fitting, the secondary pressure bearing piece is connected at the bottom of the secondary valve rod, the inner wall of the end cover is provided with a secondary spring connecting groove, the upper end of the secondary valve body spring is arranged in the secondary spring connecting groove and connected with the inner wall of the end cover, and the lower end of the secondary valve body spring is connected with the secondary pressure bearing piece.
[0010] As preferred, the secondary valve rod is internally provided with a hollow channel.
[0011] As preferred, the primary valve assembly comprises a primary valve rod, a primary pressure bearing piece and a primary valve body spring, the primary valve rod is connected with the hollow channel through the shaft hole fitting, the primary pressure bearing piece is arranged at the bottom end of the primary valve rod, the top of the secondary valve cavity is provided with a primary spring connecting groove, the top end of the primary valve body spring is connected with the primary spring connecting groove, the bottom end of the primary valve body spring is connected with the primary pressure bearing piece, and the middle part of the primary pressure bearing piece is provided with a jacking frame.
[0012] Compared with the prior art, the utility provides a multifunctional safety valve, which has the following beneficial effects:
[0013] The utility designs two-stage valve body assemblies, under normal pressure relief conditions, each valve body assembly can relieve pressure for different pressure values, meets the diversified pressure relief requirements of equipment, and enhances the applicability of the safety valve. In addition, when facing possible emergencies, the secondary valve body assembly can serve as a tolerance safety valve of the primary valve body assembly, can timely and effectively reduce the pressure, effectively prevent equipment damage, leakage and even explosion and other serious safety accidents, and provides more comprehensive protection for personnel life and property safety.
[0014] The features and advantages of the utility will be described in detail in conjunction with the embodiments and the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a whole structure schematic view of the utility;
[0016] Figure 2 It is a structure schematic view of the end cover and the valve body of the utility;
[0017] Figure 3 It is a structure schematic view of the primary valve assembly and the secondary valve assembly of the utility;
[0018] In the figure: 1, valve body; 2, end cover; 3, primary valve assembly; 4, secondary valve assembly; 11, primary valve cavity; 12, secondary valve cavity; 13, first pressure relief port; 14, second pressure relief port; 15, connecting ring; 16, sealing platform; 21, mounting hole; 22, outer ring layer; 23, inner ring layer; 24, mounting clamp groove; 25, sealing ring; 26, secondary spring connecting groove; 31, primary valve rod; 32, primary pressure bearing piece; 33, primary valve body spring; 34, jacking frame; 35, primary spring connecting groove; 41, secondary valve rod; 42, secondary pressure bearing piece; 43, secondary valve body spring; 411, hollow channel. DETAILED DESCRIPTION
[0019] To make the purpose, technical scheme and advantages of the present application more clear and intelligible, the present application is further described in detail below with the help of drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the present application and do not limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.
[0020] Referring to Figure 1 , the present application provides a multifunctional safety valve, comprising a valve body 1 and an end cover 2, wherein the valve body 1 is internally provided with a primary valve cavity 11 and a secondary valve cavity 12 located above the primary valve cavity 11, the end cover 2 is connected to the upper end of the valve body 1, the primary valve cavity 11 is internally provided with a primary valve assembly 3, the secondary valve cavity 12 is provided with a secondary valve assembly 4, the valve body 1 is provided with a first pressure relief port 13 and a second pressure relief port 14, the first pressure relief port 13 is communicated to the primary valve cavity 11, the second pressure relief port 14 is communicated to the secondary valve cavity 12, and the first pressure relief port 13 and the second pressure relief port 14 are respectively used for pressure relief when the primary valve assembly 3 is opened and the secondary valve assembly 4 is opened, forming a multi-stage pressure relief mode.
[0021] Referring to Figure 2 , specifically, a mounting hole 21 is formed in the middle of the end cover 2, the mounting hole 21 penetrates through the end cover 2, the end cover 2 is provided with an outer ring layer 22 and an inner ring layer 23, and the mounting clamp groove 24 is formed between the outer ring layer 22 and the inner ring layer 23.
[0022] Referring to Figure 2 , specifically, the valve body 1 is provided with a connecting ring 15 at the top end, the connecting ring 15 is connected with the mounting clamp groove 24 in cooperation, the inner side of the connecting ring 15 is provided with a sealing platform 16, the sealing platform 16 is correspondingly arranged with the inner ring layer 23, and the sealing ring 25 is arranged between the sealing platform 16 and the inner ring layer 23.
[0023] Referring to Figure 3Specifically, the secondary valve assembly 4 comprises a secondary valve rod 41, a secondary pressure bearing piece 42 and a secondary valve body spring 43, the secondary valve rod 41 is connected with the mounting hole 21 through shaft hole fitting connection, the secondary pressure bearing piece 42 is connected to the bottom of the secondary valve rod 41, the inner wall of the end cover 2 is provided with a secondary spring connecting groove 26, the upper end of the secondary valve body spring 43 is arranged in the secondary spring connecting groove 26 and connected with the inner wall of the end cover 2, the lower end of the secondary valve body spring 43 is connected with the secondary pressure bearing piece 42, the secondary pressure bearing piece 42 moves upwards under pressure, the secondary valve rod 41 moves upwards along the mounting hole 21 synchronously, plays a guiding role, guarantees stable operation of the device, the secondary valve body spring 43 is compressed due to pressure, until the pressure rises to a secondary pressure relief critical value, the secondary pressure bearing piece 42 reaches above the second pressure relief port 14, medium flows out from the second pressure relief port 14, and secondary pressure relief is carried out.
[0024] Referring to Figure 3 Specifically, the secondary valve rod 41 is internally provided with a hollow channel 411.
[0025] Referring to Figure 3 Specifically, the primary valve assembly 3 comprises a primary valve rod 31, a primary pressure bearing piece 32 and a primary valve body spring 33, the primary valve rod 31 is connected with the hollow channel 411 through shaft hole fitting connection, the primary pressure bearing piece 32 is arranged at the bottom end of the primary valve rod 31, the top of the secondary valve cavity 12 is provided with a primary spring connecting groove 35, the top end of the primary valve body spring 33 is connected with the primary spring connecting groove 35, the bottom end of the primary valve body spring 33 is connected with the primary pressure bearing piece 32, the primary pressure bearing piece 32 is provided with a jacking frame 34 in the middle part, the primary pressure bearing piece 32 is used for bearing medium pressure, the medium pressure pushes the primary pressure bearing piece 32 to move upwards, the primary valve rod 31 moves upwards along the hollow channel 411 synchronously, the primary valve body spring 33 is compressed due to pressure, until the pressure rises to a primary pressure relief critical value, the primary pressure bearing piece 32 reaches above the first pressure relief port 13, medium flows out from the first pressure relief port 13, and primary pressure relief is carried out.
[0026] The working principle of the utility model is as follows:
[0027] Primary pressure relief mode: when the pressure critical value needing pressure relief is low, medium enters the bottom of the valve body 1, medium pressure is applied to the primary pressure bearing piece 32, the primary pressure bearing piece 32 is pushed to move upwards, the primary valve rod 31 moves upwards along the hollow channel 411 synchronously, the primary valve body spring 33 is preliminarily compressed, until the primary pressure bearing piece 32 reaches above the first pressure relief port 13, medium flows out from the first pressure relief port 13, and primary pressure relief is carried out.
[0028] Primary pressure relief mode: when the pressure threshold value is high, the first pressure relief port 13 cannot complete the rapid pressure relief independently, the primary pressure bearing piece 32 continues to move upwards, the primary valve body spring 33 is compressed again, the top bracket 34 contacts the secondary pressure bearing piece 42 and continues to push the secondary pressure bearing piece 42 upwards, the secondary valve rod 41 is synchronously pushed out upwards along the mounting hole 21, the secondary valve body spring 43 is compressed, and the secondary pressure bearing piece 42 reaches above the second pressure relief port 14, and the medium flows out from the first pressure relief port 13 and the second pressure relief port 14 simultaneously, and secondary pressure relief is performed.
[0029] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement or improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A multifunctional safety valve comprising a valve body (1) and an end cover (2), characterized in that: The valve body (1) is provided with a primary valve cavity (11) and a secondary valve cavity (12) above the primary valve cavity (11), the end cover (2) is connected to the upper end of the valve body (1), the primary valve cavity (11) is provided with a primary valve assembly (3), the secondary valve cavity (12) is provided with a secondary valve assembly (4), the valve body (1) is provided with a first pressure relief port (13) and a second pressure relief port (14), the first pressure relief port (13) is connected to the primary valve cavity (11), and the second pressure relief port (14) is connected to the secondary valve cavity (12).
2. A multifunctional safety valve according to claim 1, characterized in that: The middle of the end cover (2) is provided with a mounting hole (21), the mounting hole (21) penetrates the end cover (2), the outer side of the end cover (2) is provided with an outer ring layer (22) and an inner ring layer (23), and the mounting groove (24) is formed between the outer ring layer (22) and the inner ring layer (23).
3. A multifunctional safety valve as claimed in claim 2, characterized in that: The top end of the valve body (1) is provided with a connecting ring (15), the connecting ring (15) is connected to the mounting groove (24) in a matched mode, the inner side of the connecting ring (15) is provided with a sealing table (16), the sealing table (16) is arranged in a corresponding mode with the inner ring layer (23), and the sealing ring (25) is arranged between the sealing table (16) and the inner ring layer (23).
4. A multifunctional safety valve as claimed in claim 2, characterized in that: The secondary valve assembly (4) comprises a secondary valve rod (41), a secondary pressure receiving piece (42) and a secondary valve body spring (43), the secondary valve rod (41) is connected to the mounting hole (21) through a shaft hole in a matched mode, the secondary pressure receiving piece (42) is connected to the bottom of the secondary valve rod (41), the inner wall of the end cover (2) is provided with a secondary spring connecting groove (26), the upper end of the secondary valve body spring (43) is arranged in the secondary spring connecting groove (26) and connected to the inner wall of the end cover (2), and the lower end of the secondary valve body spring (43) is connected to the secondary pressure receiving piece (42).
5. A multifunctional safety valve as claimed in claim 4, characterized in that: The secondary valve rod (41) is internally provided with a hollow channel (411).
6. A multifunctional safety valve as claimed in claim 5, characterized in that: The primary valve assembly (3) comprises a primary valve rod (31), a primary pressure receiving piece (32) and a primary valve body spring (33), the primary valve rod (31) is connected to the hollow channel (411) through a shaft hole in a matched mode, the primary pressure receiving piece (32) is arranged at the bottom end of the primary valve rod (31), the top of the secondary valve cavity (12) is provided with a primary spring connecting groove (35), the top end of the primary valve body spring (33) is connected to the primary spring connecting groove (35), the bottom end of the primary valve body spring (33) is connected to the primary pressure receiving piece (32), and the middle of the primary pressure receiving piece (32) is provided with a lifting frame (34).