Safety valve special for high-pressure pipeline

Abstract

The utility model relates to the field of safety valve especially relates to a high pressure pipeline special safety valve. Including safety valve body and butt -joint structure, the inside installation of safety valve body has two communicating tubes, the one end of communicating tube is away from the butt -joint pipe of butt -joint structure installation with the help of safety valve body, the arc surface of communicating tube is equipped with butt -joint structure, the butt -joint structure includes fixed ring and fixed pipe, the fixed ring is connected with communicating tube fixedly. The high pressure pipeline special safety valve provided by the utility model solves when personnel need to butt -joint installation in communicating tube and use when, personnel need to butt -joint pipe with communicating tube alignment first, then personnel are with the help of wrench and so on tool to the multiple fixed parts on butt -joint pipe repeatedly rotate, can butt -joint pipe firm butt -joint fixed on communicating tube, because the operating process consumes personnel's working time very much, and then can lead to the shortcoming of personnel's work efficiency low.

Description

Technical Field

[0001] This utility model relates to the field of safety valves, and in particular to a safety valve specifically designed for high-pressure pipelines. Background Technology

[0002] A safety valve is a device used to prevent danger caused by excessive pressure in equipment or systems. It is commonly used in equipment such as boilers, pressure vessels, and pipeline systems. When the internal pressure of the equipment exceeds the set safety pressure value, the safety valve will automatically open to release excess gas or liquid, ensuring that the equipment will not explode or be damaged due to excessive pressure. This type of safety valve is mainly suitable for high-pressure pipelines and is quite common in existing technology.

[0003] Existing technologies, such as the utility model patent with publication number CN220727222U, disclose a high-pressure safety valve. This patent employs a valve body with an outlet pipe fixedly connected to the inner wall of the outer surface of the valve body. An inner sleeve is fixedly connected to the inner wall of the outlet pipe, and a baffle plate is fixedly connected to the inner wall of the inner sleeve. An outlet connecting pipe is fixedly connected to the outer surface of the outlet pipe, and a valve seat is fixedly connected to the inner wall of the valve body. In this high-pressure safety valve, during use, the valve is installed at the top of the pipeline. If the liquid pressure in the pipeline is too high, the liquid will enter the pressure relief hole and cause the valve core to press upward against the main spring, opening the conical groove. The liquid pressure is then released and diverted to the two outlet pipes. When the pressure is too high and the liquid flow rate is too fast, the liquid will strike the baffle plate in the inner sleeve, reducing the liquid impact force. Pressure is then released through the outlet pipes on both sides, and the baffle plate reduces the excessive pressure, thereby avoiding strong impact on the valve wall and ensuring the service life of the safety valve.

[0004] The inventors have discovered in the prior art that when personnel need to install the connecting pipe onto the connecting pipe for use, they first need to align the connecting pipe with the connecting pipe, and then use tools such as wrenches to repeatedly rotate multiple fixing parts on the connecting pipe to securely fix the connecting pipe onto the connecting pipe. Because this operation process consumes a lot of personnel's working time, it leads to the problem of low work efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that in the existing technology, when personnel need to install the connecting pipe onto the connecting pipe, they need to first align the connecting pipe with the connecting pipe, and then use tools such as wrenches to repeatedly rotate multiple fixing parts on the connecting pipe to firmly fix the connecting pipe onto the connecting pipe. Because this operation process consumes a lot of personnel's working time, it leads to low work efficiency. Therefore, a special safety valve for high-pressure pipelines is proposed.

[0006] To solve the above technical problems, this utility model provides a safety valve for high-pressure pipelines, comprising: a safety valve body and a docking structure. Two connecting pipes are installed inside the safety valve body. A connecting pipe is installed at the end of each connecting pipe away from the safety valve body via the docking structure. The connecting structure is provided on the arc surface of each connecting pipe. The docking structure includes a fixing ring and a fixing pipe. The fixing ring is fixedly connected to the connecting pipe, and the fixing pipe is fixedly connected to the connecting pipe. Three connecting plates are fixedly connected to the side of the fixing ring near the fixing pipe. Two limiting grooves and a positioning groove are formed on the inner wall of each connecting plate. The two limiting grooves and the positioning groove are interconnected. An adjusting block is slidably connected to the inner wall of each limiting groove, and a stop block is slidably connected to the inner wall of each positioning groove. The stop block is fixedly connected to the two adjusting blocks. A limiting rod is fixedly connected to the inner wall of the limiting groove. The limiting rod is slidably connected to the adjusting block. A spring is sleeved on the arc surface of the limiting rod. The two ends of the spring are fixedly connected to the adjusting block and the limiting groove, respectively. Three connecting grooves are opened on the inner wall of the fixed tube. A moving block is slidably connected to the inner wall of the connecting groove. A moving plate is fixedly connected to the side of the three moving blocks that is far away from each other. The moving plate is slidably connected to the fixed tube. A rotating ring is threadedly connected to the arc surface of the fixed tube. The rotating ring is rotatably connected to the moving plate. A pressing plate is fixedly connected to the side of the moving plate near the connecting plate. The pressing plate is slidably connected to the positioning groove. The pressing plate abuts against the stop block. A positioning ring is fixedly connected to the arc surface of the fixed tube. Three mounting grooves are opened on the inner wall of the positioning ring. The mounting grooves are slidably connected to the connecting plate.

[0007] The effect achieved by the above components is as follows: when personnel need to install the connecting pipe into the connecting pipe for use, they can move the connecting pipe to make the connecting plate slide into the inner wall of the installation groove. Then, the personnel can rotate the rotating ring to make the pressing plate slide into the inner wall of the positioning groove. At this time, the pressing plate will drive the stop block to abut against the side of the positioning ring away from the fixed ring, thus making it convenient for personnel to quickly install the connecting pipe into the connecting pipe and improving the installation efficiency.

[0008] Preferably, the inner wall of the fixing ring has three positioning holes, and the inner wall of the positioning holes is slidably connected to positioning rods, and the three positioning rods are fixedly connected to the positioning ring.

[0009] The effect achieved by the above components is that the positioning hole and positioning rod can limit the positioning ring, making it convenient for personnel to quickly slide the connecting plate into the inner wall of the mounting groove.

[0010] Preferably, the inner wall of the rotating ring is provided with a plurality of anti-slip grooves, and the plurality of anti-slip grooves are evenly provided on the arc surface of the rotating ring.

[0011] The effect achieved by the above components is that the anti-slip groove can increase the friction between the person's hand and the rotating ring, and can prevent the person from slipping during the rotation of the ring.

[0012] Preferably, a guide block is fixedly connected to the end of the positioning rod away from the positioning ring.

[0013] The effect achieved by the above components is that the guide block can guide the positioning rod, making it convenient for personnel to quickly slide the positioning rod into the inner wall of the positioning hole.

[0014] Preferably, a sealing gasket is fixedly connected to one end of the connecting pipe near the connecting pipe, and the sealing gasket abuts against the connecting pipe.

[0015] The effect achieved by the above components is that the sealing gasket can increase the sealing between the connecting pipe and the connecting pipe, and can prevent gas or liquid from flowing out between the connecting pipe and the connecting pipe.

[0016] Preferably, the connecting plate is made of stainless steel.

[0017] The effect achieved by the above components is that the stainless steel plate has high strength and good wear resistance, which can prevent the connecting plate from deforming during short-term use.

[0018] Compared with related technologies, the safety valve for high-pressure pipelines provided by this utility model has the following advantages: This utility model provides a safety valve for high-pressure pipelines. By setting a docking structure, when personnel need to connect and install the docking pipe to the connecting pipe for use, the docking structure can facilitate quick and easy docking and installation, thereby speeding up the docking and installation process and improving personnel work efficiency. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a safety valve for high-pressure pipelines provided by this utility model; Figure 2 for Figure 1 The diagram shows the structural schematic of the docking structure. Figure 3 for Figure 2 The diagram shows the structure of the split structure. Figure 4 for Figure 2 The diagram shows a partial structural schematic.

[0020] The following are the labeling elements in the diagram: 1. Safety valve body; 2. Connecting pipe; 3. Connecting structure; 301. Fixing ring; 302. Fixing pipe; 303. Positioning hole; 304. Sealing gasket; 305. Connecting plate; 306. Positioning groove; 307. Stop block; 308. Connecting groove; 309. Moving block; 310. Moving plate; 311. Positioning rod; 312. Guide block; 313. Mounting groove; 314. Extrusion plate; 315. Anti-slip groove; 316. Limiting groove; 317. Adjusting block; 318. Spring; 319. Limiting rod; 320. Positioning ring; 321. Rotary ring; 4. Connecting pipe. Detailed Implementation

[0021] 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.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figure 1 The present invention provides a safety valve for high-pressure pipelines, comprising: a safety valve body 1 and a docking structure 3. Two connecting pipes 2 are installed inside the safety valve body 1. A connecting pipe 4 is installed at the end of the connecting pipe 2 away from the safety valve body 1 through the docking structure 3. The connecting pipe 2 has the docking structure 3 on its arc surface.

[0024] In the embodiments of this utility model, please refer to Figures 2 to 4The docking structure 3 includes a fixing ring 301 and a fixing pipe 302. The fixing ring 301 is fixedly connected to the connecting pipe 2, and the fixing pipe 302 is fixedly connected to the docking pipe 4. Three connecting plates 305 are fixedly connected to the side of the fixing ring 301 near the fixing pipe 302. The inner wall of the connecting plate 305 has two limiting grooves 316 and a positioning groove 306. The two limiting grooves 316 and the positioning groove 306 are interconnected. An adjusting block 317 is slidably connected to the inner wall of the limiting groove 316. A stop block 307 is slidably connected to the inner wall of the positioning groove 306. The stop block 307 is fixedly connected to the two adjusting blocks 317. A limiting rod 319 is fixedly connected to the inner wall of the limiting groove 316. The limiting rod 319 is slidably connected to the adjusting block 317. A spring 318 is sleeved on the arc surface of the limiting rod 319. The two ends of the spring 318 are respectively connected to the adjusting block. 317 and the limiting groove 316 are fixedly connected. The inner wall of the fixed tube 302 is provided with three connecting grooves 308. The inner wall of the connecting groove 308 is slidably connected with a moving block 309. The three moving blocks 309 are fixedly connected to a moving plate 310 on the side away from each other. The moving plate 310 is slidably connected to the fixed tube 302. The arc surface of the fixed tube 302 is threadedly connected with a rotating ring 321. The rotating ring 321 is rotatably connected to the moving plate 310. The side of the moving plate 310 near the connecting plate 305 is fixedly connected with a pressing plate 314. The pressing plate 314 is slidably connected to the positioning groove 306. The pressing plate 314 abuts against the stop block 307. The arc surface of the fixed tube 302 is fixedly connected with a positioning ring 320. The inner wall of the positioning ring 320 is provided with three mounting grooves 313. The mounting grooves 313 are slidably connected to the connecting plate 305. When personnel need to connect and install the connecting pipe 4 into the connecting pipe 2, they can move the connecting pipe 4 to allow the connecting plate 305 to slide into the inner wall of the mounting groove 313. Then, the personnel can rotate the rotating ring 321 to allow the pressing plate 314 to slide into the inner wall of the positioning groove 306. At this time, the pressing plate 314 will drive the stop block 307 to abut against the side of the positioning ring 320 away from the fixed ring 301, which makes it convenient for personnel to quickly connect and install the connecting pipe 4 into the connecting pipe 2, improving the installation efficiency. The inner wall of the fixed ring 301 has three positioning holes 303, and the inner wall of the positioning holes 303 is slidably connected to the positioning rods 311. The three positioning rods 311 are fixedly connected to the positioning ring 320. The positioning hole 303 and the positioning rod 311 can limit the positioning ring 320, allowing personnel to quickly slide the connecting plate 305 into the inner wall of the mounting groove 313. The inner wall of the rotating ring 321 has several anti-slip grooves 315, evenly distributed on the arc surface of the rotating ring 321. The anti-slip grooves 315 increase the friction between the personnel's hands and the rotating ring 321, preventing slippage during rotation. A guide block 312 is fixedly connected to the end of the positioning rod 311 furthest from the positioning ring 320.The guide block 312 guides the positioning rod 311, allowing personnel to quickly slide the positioning rod 311 into the inner wall of the positioning hole 303. A sealing gasket 304 is fixedly connected to the end of the connecting pipe 2 near the connecting pipe 4, and the sealing gasket 304 abuts against the connecting pipe 4. The sealing gasket 304 increases the sealing between the connecting pipe 2 and the connecting pipe 4, preventing gas or liquid from flowing out between them. The connecting plate 305 is made of stainless steel. Stainless steel has high strength and good wear resistance, preventing deformation of the connecting plate 305 during short-term use. The working principle of the high-pressure pipeline safety valve provided by this utility model is as follows: When personnel need to connect and install the connecting pipe 4 onto the connecting pipe 2, they can first move the connecting pipe 4. The connecting pipe 4 drives the fixed pipe 302 to move closer to the fixed ring 301. The fixed pipe 302 drives the rotating ring 321, the three moving rings, and the positioning ring 320 to move closer to the fixed ring 301. The rotating ring 321 drives the moving plate 310 to move closer to the fixed ring 301. The moving plate 310 drives the three pressing plates 314 to move closer to the fixed ring 301. The positioning ring 321 drives the three positioning rods 311 to move closer to the fixed ring 301. The positioning rod 311 moves in the direction of 01, causing the guide block 312 to move closer to the fixing ring 301 until the guide block 312 and the positioning rod 311 slide into the inner wall of the positioning hole 303. The guide block 312 guides the positioning rod 311, allowing personnel to quickly slide the positioning rod 311 into the inner wall of the positioning hole 303. Then, as the positioning rod 311 slides into the inner wall of the positioning hole 303, the connecting plate 305 slides into the inner wall of the mounting groove 313 until the connecting pipe 4 abuts against the sealing gasket 304. The sealing gasket 304 increases the sealing between the connecting pipe 2 and the connecting pipe 4, preventing gas or liquid from flowing out between the connecting pipe 2 and the connecting pipe 4. The fluid flows out, and then the personnel rotate the rotating ring 321. The anti-slip groove 315 on the arc surface of the rotating ring 321 increases the friction between the personnel's hands and the rotating ring 321, preventing slippage during rotation. Then, the rotating ring 321 drives the moving plate 310 to move closer to the connecting plate 305. The moving plate 310 drives the three moving blocks 309 and the three pressing plates 314 to move closer to the connecting plate 305 until the pressing plates 314 slide into the inner wall of the positioning groove 306. At this time, the inclined surface of the pressing plate 314 will abut against the stop block 307. Then, the pressing plate 314 drives the stop block to move away from the positioning groove 306. The baffle moves the two adjusting blocks 317 toward the direction of the connecting pipe 4. The adjusting blocks 317 stretch the spring 318. The adjusting blocks 317 also slide on the arc surface of the limiting rod 319 until the stop block 307 moves to the side of the positioning ring 320 away from the fixed ring 301. At this time, the baffle abuts against the positioning ring 320. The positioning hole 303 and the positioning rod 311 can limit the positioning ring 320, which can facilitate the personnel to quickly slide the connecting plate 305 into the inner wall of the mounting groove 313. The connecting plate 305 is a stainless steel plate. Stainless steel plate has high strength and good wear resistance, which can prevent the connecting plate 305 from deforming during short-term use.

[0025] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0026] 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 safety valve specifically designed for high-pressure pipelines, characterized in that, include: The safety valve body (1) and the docking structure (3) are provided. The safety valve body (1) has two connecting pipes (2) installed inside. The end of the connecting pipe (2) away from the safety valve body (1) is connected to the docking pipe (4) by means of the docking structure (3). The arc surface of the connecting pipe (2) is provided with the docking structure (3). The docking structure (3) includes a fixing ring (301) and a fixing pipe (302). The fixing ring (301) is fixedly connected to the connecting pipe (2). The fixing pipe (302) is fixedly connected to the docking pipe (4). The fixing ring (301) is close to the fixing pipe (302). Three connecting plates (305) are fixedly connected to one side of the device. The inner wall of each connecting plate (305) has two limiting grooves (316) and a positioning groove (306). The two limiting grooves (316) and the positioning groove (306) are interconnected. An adjusting block (317) is slidably connected to the inner wall of the limiting groove (316). A stop block (307) is slidably connected to the inner wall of the positioning groove (306). The stop block (307) is fixedly connected to the two adjusting blocks (317). A limiting rod (319) is fixedly connected to the inner wall of the limiting groove (316). The limiting rod (319) is connected to the adjusting block (306). The segment (317) is slidably connected. A spring (318) is sleeved on the arc surface of the limiting rod (319). The two ends of the spring (318) are fixedly connected to the adjusting block (317) and the limiting groove (316) respectively. The inner wall of the fixed tube (302) is provided with three connecting grooves (308). A moving block (309) is slidably connected to the inner wall of the connecting groove (308). A moving plate (310) is fixedly connected to the side of the three moving blocks (309) that is far away from each other. The moving plate (310) is slidably connected to the fixed tube (302). The arc surface of the fixed tube (302) is... A rotating ring (321) is connected to the threaded surface. The rotating ring (321) is rotatably connected to the moving plate (310). A pressing plate (314) is fixedly connected to the side of the moving plate (310) near the connecting plate (305). The pressing plate (314) is slidably connected to the positioning groove (306). The pressing plate (314) abuts against the stop block (307). A positioning ring (320) is fixedly connected to the arc surface of the fixed tube (302). The inner wall of the positioning ring (320) has three mounting grooves (313). The mounting grooves (313) are slidably connected to the connecting plate (305).

2. The safety valve for high-pressure pipelines according to claim 1, characterized in that, The inner wall of the fixed ring (301) is provided with three positioning holes (303), and the inner wall of the positioning holes (303) is slidably connected with positioning rods (311), and the three positioning rods (311) are fixedly connected to the positioning ring (320).

3. A safety valve for high-pressure pipelines according to claim 1, characterized in that, The inner wall of the rotating ring (321) is provided with a number of anti-slip grooves (315), and the number of anti-slip grooves (315) are evenly provided on the arc surface of the rotating ring (321).

4. A safety valve for high-pressure pipelines according to claim 2, characterized in that, The end of the positioning rod (311) away from the positioning ring (320) is fixedly connected to a guide block (312).

5. A safety valve for high-pressure pipelines according to claim 1, characterized in that, A sealing gasket (304) is fixedly connected to one end of the connecting pipe (2) near the connecting pipe (4), and the sealing gasket (304) abuts against the connecting pipe (4).

6. A safety valve for high-pressure pipelines according to claim 1, characterized in that, The connecting plate (305) is made of stainless steel.

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