Balanced pressure relief device special for under-pressure operation of under-pressure operation machine

Abstract

The utility model relates to the technical field of under-pressure operation in the petroleum engineering industry, in particular to a balance pressure relief device special for under-pressure operation of an under-pressure operation machine, which comprises a channel I, a channel II and a pipeline, the outer wall of the other side of the first flange four-way joint is fixedly connected with a first gate valve, the outer wall of the other side of the first gate valve is fixedly connected with a second flange four-way joint, the outer wall of the other side of the second flange four-way joint is fixedly connected with a second gate valve, the outer wall of the other side of the second gate valve is fixedly connected with a first temperature and pressure measuring sleeve, and the number of the second channels is two. According to the multi-channel throttling pressure relief valve, fluid can flow for pressure relief only through the first channel by opening the first gate valve and the second gate valve and closing all the gate valves in the two second channels, when flow division is needed, flow division can be achieved by closing the first gate valve and the second gate valve and opening the third gate valve, the fourth gate valve and the sixth gate valve, and the multi-channel throttling pressure relief effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of live operation technology in the petroleum engineering industry, and in particular to a pressure relief device specifically designed for live operation of a live working machine. Background Technology

[0002] The pressure relief device for live-line working machines is a protective device used in high-pressure working environments to ensure the safety of equipment and personnel. It is widely used in industries such as oil, gas, and chemicals. During live-line working, this device monitors the internal and external pressures of the equipment in real time, automatically or manually adjusting and releasing excess pressure to prevent overpressure or leakage, ensuring safety during the operation. It effectively balances the pressure difference between the inside and outside of the machine, avoiding equipment damage or safety accidents caused by pressure fluctuations, and improving the safety and reliability of the operation. It is especially crucial in the maintenance and repair of high-pressure pipelines and containers.

[0003] In the existing technology, the pressure relief device of the live working machine is usually only set with one pressure relief route, resulting in poor pressure relief effect. During the valve opening process, the fluid will generate huge impact, which can not only easily cause damage to valves and pipelines, but also affect the pressure relief effect. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pressure relief device specifically for live-line working machines.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a pressure relief device for live-line operation of a live-line machine, comprising a channel one, a channel two, and a pipeline. The channel one includes a flange right angle, and a flange four-way one is fixedly connected to the outer wall of the flange right angle. A gate valve one is fixedly connected to the outer wall of the other side of the flange four-way one, and a flange four-way two is fixedly connected to the outer wall of the other side of the flange four-way two. A temperature and pressure measuring sleeve one is fixedly connected to the outer wall of the other side of the gate valve two. The channel two is provided in two sets, and the channel two is located on both sides of the outer wall of the channel one.

[0006] As a further description of the above technical solution: the second channel includes a gate valve three, the gate valve three is fixedly connected to the outer wall of the flange tee one, the other outer wall of the gate valve three is fixedly connected to an anti-puncture oil nozzle sleeve, the other outer wall of the anti-puncture oil nozzle sleeve is fixedly connected to a gate valve four, and the other outer wall of the gate valve four is fixedly connected to a flange tee.

[0007] As a further description of the above technical solution: a gate valve five is fixedly connected to the outer wall of the other side of the flange tee, the gate valve five is fixedly connected to the outer wall of the flange four two, a gate valve six is ​​fixedly connected to the outer wall of the left side of the flange tee, and a temperature and pressure measuring sleeve two is fixedly connected to the other side of the gate valve six.

[0008] As a further description of the above technical solution: all the gate valves are provided with an adjustment component inside, the adjustment component is used to control the opening and closing of the gate valve, the adjustment component includes a pipe, and the pipe is arranged inside the gate valve.

[0009] As a further description of the above technical solution: a casing is fixedly connected to the outer wall of the pipe, a baffle is slidably connected to the inside of the pipe, the baffle is slidably connected to the inside of the casing, a threaded rod is fixedly connected to the upper surface of the baffle, a throttle is threadedly connected to the outer wall of the threaded rod, and the throttle is rotatably connected to the inside of the casing.

[0010] As a further description of the above technical solution: a partition is fixedly connected inside the pipe, the partition is disposed on both sides inside the pipe, a buffer plate is disposed inside the pipe, the buffer plate is disposed on both sides of the partition, a spring is disposed on the outer wall of the partition, one end of the spring is fixedly connected to the inside of the partition, and the other end of the spring is fixedly connected to the inside of the buffer plate.

[0011] This utility model has the following beneficial effects:

[0012] 1. Compared with the existing technology, this pressure relief device for live working machine can make the fluid flow and relieve pressure only through channel one by opening gate valve one and gate valve two and closing all gate valves inside the two sets of channels two. When diversion is required, gate valve one and gate valve two are closed and gate valve three, gate valve four and gate valve six are opened to achieve diversion, thus achieving the effect of multi-channel throttling and pressure relief.

[0013] 2. Compared with the existing technology, this pressure relief device for live working machines uses a rotating handle to move the threaded rod upward, which in turn causes the threaded rod to move the baffle plate upward, thus opening the gate valve. After opening, the fluid flows through the inside of the pipe, and the fluid impact is large. The fluid impacts the buffer plate, which compresses the spring of the buffer plate, thus achieving the effect of buffering the fluid and reducing the wear and tear on the equipment. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of a pressure relief device specifically designed for live-line work on a live-line machine, as proposed in this utility model.

[0015] Figure 2 This is a structural diagram of the channel of a pressure relief device for live-line operation of a live-line machine, as proposed in this utility model.

[0016] Figure 3 This is a structural diagram of channel two of the pressure relief device for live-line operation proposed in this utility model;

[0017] Figure 4 This utility model presents a pipeline structure diagram of a pressure relief device specifically designed for live-line work.

[0018] Legend:

[0019] 1. Channel 1; 101. Right Angle Flange; 102. Flange 4-Way 1; 103. Gate Valve 1; 104. Flange 4-Way 2; 105. Gate Valve 2; 106. Temperature and Pressure Measuring Sleeve 1; 2. Channel 2; 201. Gate Valve 3; 202. Anti-Stab Oil Nozzle Sleeve; 203. Gate Valve 4; 204. Flange 3-Way; 205. Gate Valve 5; 206. Gate Valve 6; 207. Temperature and Pressure Measuring Sleeve 2; 3. Pipeline; 301. Housing; 302. Baffle; 303. Threaded Rod; 304. Handle; 305. Partition Plate; 306. Buffer Plate; 307. Spring. Detailed Implementation

[0020] Reference Figure 1-4This utility model provides a pressure relief device for live-line working machines, comprising a channel 1, a channel 2, and a pipe 3. Channel 1 includes a right-angle flange 101, with a four-way flange 102 fixedly connected to its outer wall, allowing fluid to flow in four directions. A gate valve 103 is fixedly connected to the other outer wall of the four-way flange 102, and a four-way flange 104 is fixedly connected to the other outer wall of the gate valve 103, controlling the fluid flow between the four-way flange 102 and the four-way flange 104. A gate valve 205 is fixedly connected to the other outer wall of the four-way flange 104, and a temperature and pressure measuring sleeve 106 is fixedly connected to the other outer wall of the gate valve 205, detecting fluid pressure and temperature. Channel 2 has two sets of channels, achieving fluid diversion and pressure relief. Located on both sides of the outer wall of channel 1, channel 2 includes gate valve 3 201, which is fixedly connected to the outer wall of flange 4-way 102. An anti-puncture nozzle sleeve 202 is fixedly connected to the other outer wall of gate valve 3 201. Gate valve 4 203 is fixedly connected to the other outer wall of anti-puncture nozzle sleeve 202. A flange 3-way 204 is fixedly connected to the other outer wall of gate valve 4 203. Gate valve 5 205 is fixedly connected to the other outer wall of flange 3-way 204. Five 205 is fixedly connected to the outer wall of flange four-way two 104. The fluid in flange four-way one 102 and flange four-way two 104 enters and exits the anti-puncture oil nozzle sleeve 202 and flange three 204 through gate valve three 201 and gate valve five 205. A gate valve six 206 is fixedly connected to the outer wall of the left side of flange three 204. A temperature and pressure measuring sleeve two 207 is fixedly connected to the other side of gate valve six 206. The temperature and pressure measuring sleeve two 207 is used to measure fluid pressure and temperature.

[0021] All gate valves are equipped with an adjustment assembly inside, which controls the opening and closing of the gate valve. The adjustment assembly includes a pipe 3, which is located inside the gate valve. A housing 301 is fixedly connected to the outer wall of the pipe 3. A baffle 302 is slidably connected inside the pipe 3 and is slidably connected to the inside of the housing 301. The baffle 302 is used to block fluid flow. A threaded rod 303 is fixedly connected to the upper surface of the baffle 302. A handle 304 is threadedly connected to the outer wall of the threaded rod 303. Rotating the handle 304 drives the threaded rod 303 to rise and fall for adjustment. The handle 304 is rotatably connected to the housing 301. Inside pipe 3, a baffle 305 is fixedly connected to the inside of pipe 3. The baffle 305 is set on both sides of the inside of pipe 3. A buffer plate 306 is set inside pipe 3. The buffer plate 306 is set on both sides of the baffle 305. The two buffer plates 306 buffer the fluid on both sides of the baffle 305. A spring 307 is set on the outer wall of the baffle 305. One end of the spring 307 is fixedly connected to the inside of the baffle 305, and the other end of the spring 307 is fixedly connected to the inside of the buffer plate 306. The multiple springs 307 play an automatic reset role, thereby assisting in the function of fluid buffering.

[0022] Working principle: During operation, in the pressure relief process, fluid enters the pressure relief device through flange right angle 101, and then through flange four-way one 102. Gate valves three 201 and five 205 are closed, while gate valve one 103 and gate valve two 105 are opened. Fluid then flows through flange four-way one 102 into gate valve one 103, and through flange four-way two 104 and gate valve two 105 to the temperature and pressure measuring sleeve one 106, achieving the pressure relief effect. The temperature and pressure measuring sleeve one 106 monitors the fluid pressure and... Temperature is monitored. When throttling and pressure relief are required, gate valve 103 can be closed, while gate valve 205, two gate valves 201, 203, 205, and 206 can be opened. Fluid enters the two gate valves 201 through both ends of flange 102, then enters the anti-puncture nozzle sleeve 202, gate valve 203, and flange 204 through gate valve 201. The fluid is then diverted to gate valves 205 and 206 through flange 204. Finally, the fluid can be diverted through gate valve 205. The fluid enters through flange 4-way 2104, then through flange 4-way 2104 to gate valve 2105 and temperature and pressure measuring sleeve 1106. After passing through gate valve 6206, it directly enters temperature and pressure measuring sleeve 207. Pressure and temperature are detected through temperature and pressure measuring sleeve 1106 and the two temperature and pressure measuring sleeves 207, thus achieving a multi-channel throttling and pressure relief effect. However, during the pressure relief process, the opening of the gate valve can cause a large fluid impact, affecting the pressure relief effect and causing wear and tear on the equipment. Therefore, an adjustment component is installed inside the gate valve, which is adjusted by rotating handle 304. The threaded rod 303 is driven to rise, which in turn causes the baffle 302 to move upward. After the baffle 302 moves upward, the fluid flows through the pipe 3. After the baffle 302 slides open, the initial flow of the fluid has a large impact. The buffer plate 306 buffers the fluid. After the fluid impacts the buffer plate 306, the buffer plate 306 slides due to the impact and compresses the spring 307. The spring 307 rebounds and resets, thus buffering and slowing down the fluid, thereby achieving a buffering effect on the fluid, reducing the impact on the pressure relief operation, and thus reducing the wear and tear on the equipment.

[0023] 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 pressure relief device for live-line working machines, comprising channel one (1), channel two (2), and pipe (3), characterized in that: The first channel (1) includes a right-angle flange (101), and a four-way flange (102) is fixedly connected to the outer wall of the right-angle flange (101). A gate valve (103) is fixedly connected to the outer wall of the other side of the four-way flange (102). A four-way flange (104) is fixedly connected to the outer wall of the other side of the four-way flange (104). A gate valve (105) is fixedly connected to the outer wall of the other side of the four-way flange (104). A temperature and pressure measuring sleeve (106) is fixedly connected to the outer wall of the other side of the gate valve (105). The second channel (2) is provided with two sets, and the second channel (2) is provided on both sides of the outer wall of the first channel (1).

2. The pressure relief device for live-line working machines according to claim 1, characterized in that: The second channel (2) includes a gate valve three (201), which is fixedly connected to the outer wall of the flange four-way one (102). The other outer wall of the gate valve three (201) is fixedly connected to an anti-puncture oil nozzle sleeve (202), the other outer wall of the anti-puncture oil nozzle sleeve (202) is fixedly connected to a gate valve four (203), and the other outer wall of the gate valve four (203) is fixedly connected to a flange three-way (204).

3. The pressure relief device for live-line working machines according to claim 2, characterized in that: A gate valve five (205) is fixedly connected to the outer wall of the other side of the flange tee (204). The gate valve five (205) is fixedly connected to the outer wall of the flange four-way two (104). A gate valve six (206) is fixedly connected to the outer wall of the left side of the flange tee (204). A temperature and pressure measuring sleeve two (207) is fixedly connected to the outer side of the other side of the gate valve six (206).

4. The pressure relief device for live-line working machines according to claim 1, characterized in that: All of the gate valves are equipped with an adjustment component inside, which is used to control the opening and closing of the gate valve. The adjustment component includes a pipe (3), which is installed inside the gate valve.

5. A pressure relief device for live-line working machines according to claim 4, characterized in that: The outer wall of the pipe (3) is fixedly connected to a casing (301), and the inside of the pipe (3) is slidably connected to a baffle (302). The baffle (302) is slidably connected inside the casing (301). The upper surface of the baffle (302) is fixedly connected to a threaded rod (303). The outer wall of the threaded rod (303) is threadedly connected to a throttle (304), and the throttle (304) is rotatably connected inside the casing (301).

6. A pressure-relieving device for live-line operation of a live-line working machine according to claim 5, characterized in that: A partition (305) is fixedly connected inside the pipe (3). The partition (305) is located on both sides inside the pipe (3). A buffer plate (306) is provided inside the pipe (3). The buffer plate (306) is located on both sides of the partition (305). A spring (307) is provided on the outer wall of the partition (305). One end of the spring (307) is fixedly connected inside the partition (305), and the other end of the spring (307) is fixedly connected inside the buffer plate (306).

Images