Steam relief device for safety valve
By improving the exhaust pipe design of the steam relief device, the problems of condensate backflow and pressure relief gas leakage were solved, and efficient pressure relief and sealing stability of the safety valve were achieved.
Patent Information
- Application Number
- CN202422436639.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In the existing safety valve steam relief device, condensate backflow causes damage to the flange and safety valve seal, and there is a problem of pressure relief gas leakage, and the pressure relief efficiency is low.
The combined design of steam pipe, safety valve, outlet pipe, first exhaust pipe, second exhaust pipe and third exhaust pipe is adopted. Through the inclined setting and condensation sleeve, the condensed water is discharged into the water tank through the third exhaust pipe to avoid backflow and improve the pressure relief efficiency.
It effectively prevents seal damage caused by condensate backflow, solves the problem of pressure relief gas leakage, and improves the pressure relief efficiency and the service life of the safety valve.
Smart Images
Figure CN223425095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of explosion safety valves, in particular to a steam release device for a safety valve. Background Art
[0002] During the on-site production process of mixing emulsion explosive matrix, pipelines are prone to oil condensation and water crystallization at low temperatures, leading to pipeline blockage. To address this issue, the pipelines are typically preheated with high-pressure steam. However, controlling the steam pressure is difficult and prone to overload, necessitating the use of a safety valve for pressure relief. The existing technology utilizes a safety valve and a pipeline with a flange at one end and an elbow at the other (i.e., a Z-shaped pipeline) to form a pressure relief system. However, this system has significant drawbacks: after the pressure relief steam is discharged through the Z-shaped pipeline, its temperature drops, forming condensate. This condensate can flow back onto the sealing surfaces of the flange and safety valve, damaging the seals and causing leakage of the pressure relief gas. This poses a safety hazard and increases maintenance and replacement costs. Therefore, there is an urgent need for a steam relief device for a safety valve that not only addresses the problem of flange and safety valve seal damage caused by condensate backflow, but also addresses the problem of pressure relief gas leakage while improving pressure relief efficiency. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a steam relief device for a safety valve, which can not only solve the damage to the flange and the safety valve seal caused by the backflow of condensate, but also solve the problem of pressure relief gas leakage, while improving the pressure relief efficiency.
[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a steam release device for a safety valve, comprising:
[0005] A steam pipe, wherein the steam pipe is provided with an air inlet pipe;
[0006] Safety valve, which is connected to the end of the air inlet pipe away from the steam pipe;
[0007] An air outlet pipe, one end of which is connected to one end of the safety valve, and the other end of which is provided with a flange;
[0008] a first exhaust pipe, one end of which is connected to the exhaust pipe via a flange;
[0009] a second exhaust pipe, the second exhaust pipe being connected to the first exhaust pipe and being located above the first exhaust pipe;
[0010] a third exhaust pipe, one end of the third exhaust pipe being connected to the first exhaust pipe, the third exhaust pipe being located below the first exhaust pipe, and the third exhaust pipe being in communication with the second exhaust pipe;
[0011] A water tank, the other end of the third exhaust pipe extends into the water tank.
[0012] Further, the first exhaust pipe is inclinedly arranged, the high end of the first exhaust pipe is located at the flange plate, and the low end is communicated with the second exhaust pipe and the third exhaust pipe.
[0013] Further, the second exhaust pipe is provided with a condensing sleeve.
[0014] Further, the third exhaust pipe is a Z-shaped pipe.
[0015] Further, the end of the third exhaust pipe away from the first exhaust pipe is provided with a horn-shaped pipe.
[0016] The beneficial effects of the utility model lie in that, compared with the prior art, not only can the sealing damage of the flange plate and the safety valve caused by the backflow of condensed water be solved, but also the problem of leakage of pressure relief gas can be solved, and the pressure relief efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the Z-shaped pipe adopted by the prior art;
[0018] Figure 2 It is a structural schematic view of a safety valve steam relief device according to the specific embodiment of the utility model.
[0019] REFERENCE NUMERALS
[0020] 1, steam pipe; 11, air inlet pipe;
[0021] 2, safety valve;
[0022] 3, air outlet pipe; 31, flange plate;
[0023] 4, first exhaust pipe;
[0024] 5, second exhaust pipe; 51, condensing sleeve;
[0025] 6, third exhaust pipe; 61, horn-shaped pipe;
[0026] 7, water tank. DETAILED DESCRIPTION
[0027] In order to make the technical content, the purposes and effects achieved by the utility model clear, the following will be described in combination with the embodiments and the drawings.
[0028] Please refer to Figures 1-2 A safety valve steam relief device, comprising:
[0029] Steam pipe 1, the steam pipe 1 is provided with air inlet pipe 11;
[0030] Safety valve 2, safety valve 2 is connected to the end of the air inlet pipe 11 away from the steam pipe 1;
[0031] An air outlet pipe 3, one end of which is connected to one end of the safety valve 2, and the other end of which is provided with a flange 31;
[0032] A first exhaust pipe 4, one end of which is connected to the exhaust pipe 3 via a flange 31;
[0033] A second exhaust pipe 5 is connected to the first exhaust pipe 4 and is located above the first exhaust pipe 4;
[0034] a third exhaust pipe 6, one end of which is connected to the first exhaust pipe 4, the third exhaust pipe 6 being located below the first exhaust pipe 4, and the third exhaust pipe 6 being in communication with the second exhaust pipe 5;
[0035] The water tank 7 , the other end of the third exhaust pipe 6 extends into the water tank 7 .
[0036] In the above embodiment, the prior art uses a safety valve and a pipe with a flange at one end and a bend at the other end (i.e., a Z-shaped pipe, as shown in the attached figure). Figure 1 As shown in the figure, a pressure relief system is formed. The utility model provides a second exhaust pipe 5 and a third exhaust pipe 6, so that the high-pressure steam in the steam pipe 1 can be relieved to the second exhaust pipe 5 and the third exhaust pipe 6 respectively through the first exhaust pipe 4, thereby reducing the steam pressure at the discharge port of the safety valve 2. After the pressure relief, the temperature in the second exhaust pipe 5 is reduced, and the generated condensed water is discharged to the water tank 7 through the third exhaust pipe 6, so that it will not flow back to the flange 31 and the safety valve 2, thereby avoiding damage to the flange 31 and the safety valve 2. Compared with the prior art, it can not only solve the problem of sealing damage to the flange 31 and the safety valve 2 caused by the backflow of condensed water, but also solve the problem of leakage of pressure relief gas, while improving the pressure relief efficiency.
[0037] As an optional embodiment, the first exhaust pipe 4 is arranged at an angle, with the higher end of the first exhaust pipe 4 located at the flange 31 and the lower end communicating with the second exhaust pipe 5 and the third exhaust pipe 6 .
[0038] In the above embodiment, after the high-pressure steam is discharged from the first exhaust pipe 4, the temperature of the first exhaust gas is reduced, and after condensed water is formed, it is discharged to the water tank 7 through the third exhaust pipe 6, thereby avoiding the impact of the condensed water on the safety valve 2 and the flange 31, and further extending the service life of the safety valve 2 and the flange.
[0039] As an optional implementation, a condensation sleeve 51 is provided on the second exhaust pipe 5 .
[0040] In the above embodiment, by arranging the condensing sleeve 51, the high-pressure steam in the second exhaust pipe 5 can be changed into condensed water without waiting for the temperature of the second exhaust pipe 5 to decrease, so that the pressure relief efficiency of the second exhaust pipe 5 can be improved, and the steam pressure at the discharge port of the safety valve 2 can be reduced, thereby improving the pressure relief efficiency.
[0041] As an optional embodiment, the third exhaust pipe is a Z-shaped pipe.
[0042] In the above embodiment, the Z-shaped pipe is arranged instead of a straight pipe, so as to avoid that the steam pressure is too large when the steam is discharged to the water tank 7 through the straight pipe, and the Z-shaped pipe can reduce the pressure at the discharge port and prevent the splashing of the high-pressure steam and the condensed water in the water tank 7.
[0043] As an optional embodiment, the third exhaust pipe 6 is provided with a horn-shaped pipe 61 at the end away from the first exhaust pipe 4.
[0044] In the above embodiment, by arranging the horn-shaped pipe 61, the discharge of the condensed water can be accelerated, and the pressure relief efficiency of the high-pressure steam can be improved, so that the steam pressure at the discharge port of the safety valve 2 can be reduced, and the service life of the safety valve 2 can be prolonged.
[0045] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the present application is also included in the patent protection range of the present application.
Claims
1. A steam release device for a safety valve, characterized in that: include: A steam pipe, wherein the steam pipe is provided with an air inlet pipe; Safety valve, which is connected to the end of the air inlet pipe away from the steam pipe; An air outlet pipe, one end of which is connected to one end of the safety valve, and the other end of which is provided with a flange; a first exhaust pipe, one end of which is connected to the exhaust pipe via a flange; a second exhaust pipe, the second exhaust pipe being connected to the first exhaust pipe and being located above the first exhaust pipe; a third exhaust pipe, one end of the third exhaust pipe being connected to the first exhaust pipe, the third exhaust pipe being located below the first exhaust pipe, and the third exhaust pipe being in communication with the second exhaust pipe; The other end of the third exhaust pipe extends into the water tank.
2. The steam release device for a safety valve according to claim 1, characterized in that: The first exhaust pipe is arranged obliquely, with a higher end of the first exhaust pipe located at the flange, and a lower end of the first exhaust pipe being communicated with the second exhaust pipe and the third exhaust pipe.
3. The steam release device for a safety valve according to claim 1, characterized in that: A condensation sleeve is provided on the second exhaust pipe.
4. The steam release device for a safety valve according to claim 1, characterized in that: The third exhaust pipe is a Z-shaped pipe.
5. The steam release device for a safety valve according to claim 1, characterized in that: A trumpet-shaped pipe is provided at one end of the third exhaust pipe away from the first exhaust pipe.