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Petroleum pipeline stop valve and petroleum conveying system

A technology for oil pipelines and oil transportation, applied in the directions of lift valves, valve details, valve devices, etc., can solve the problems of oil leakage accidents, reduce the safety and reliability of oil transportation, poor sealing performance of stop valves, etc., to strengthen the sealing effect, avoid easy softening, prevent leakage of sealing packing

Pending Publication Date: 2020-03-10
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the oil pipeline globe valve mentioned above, only a rod sleeve is provided between the valve stem and the upper shut-off valve, and the abutment gap between the two is sealed by the rod sleeve, resulting in poor internal sealing performance of the globe valve, and oil bodies are prone to occur. Spill accidents, reducing the safety and reliability of oil transportation

Method used

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  • Petroleum pipeline stop valve and petroleum conveying system
  • Petroleum pipeline stop valve and petroleum conveying system
  • Petroleum pipeline stop valve and petroleum conveying system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] figure 2 It is a schematic structural diagram of an oil pipeline shut-off valve provided in Embodiment 1 of the present invention. image 3 It is a schematic diagram of the internal structure of the shut-off valve of the oil pipeline provided by Embodiment 1 of the present invention. Figure 4 It is a schematic diagram of the internal structure of the conduction state of the oil pipeline shut-off valve provided by Embodiment 1 of the present invention. Figure 5 It is a schematic structural diagram of a flange assembly of an oil pipeline shut-off valve provided in Embodiment 1 of the present invention. Image 6 It is a side view of an oil pipeline shut-off valve provided in Embodiment 1 of the present invention.

[0074] Refer to attached figure 2 to attach Image 6 As shown, the embodiment of the present invention provides an oil pipeline shut-off valve 100 , which includes a hand wheel 10 , a valve body 20 , a valve stem 30 and a valve disc 40 .

[0075] The va...

Embodiment 2

[0110] On the basis of the first embodiment above, the second embodiment of the present invention also provides an oil transportation system, including a plurality of end-to-end oil transportation pipelines and the above-mentioned oil pipeline shut-off valve 100, the oil pipeline shut-off valve 100 is arranged in the oil transportation on the pipe.

[0111] It should be noted that the oil pipeline shut-off valve 100 can be installed on two adjacent oil pipelines, or can be installed in the middle of the same oil pipeline, and this embodiment does not limit its specific location.

[0112] The other technical features are the same as those in Embodiment 1, and can achieve the same technical effect, and will not be repeated here.

[0113] The oil delivery system provided by Embodiment 2 of the present invention includes an oil pipeline shut-off valve. The oil pipeline shut-off valve includes a handwheel, a valve body, a valve stem and a valve disc. Under the action, the valve cl...

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Abstract

The invention provides a petroleum pipeline stop valve and a petroleum conveying system. The petroleum pipeline stop valve comprises a hand wheel, a valve body, a valve rod and a valve flap, wherein avalve cavity for allowing an oil body to circulate is formed inside the valve body, a mounting opening is formed in one end of the valve cavity, and a liquid inlet pipeline and a liquid outlet pipeline which communicate with the valve cavity are arranged at the other end of the valve cavity; a wheel shaft of the hand wheel is connected with one end of the valve rod, the other end of the valve rodis provided with the valve flap, and the other end of the valve rod extends into the valve cavity through the mounting opening, so that the valve flap is located in an communication area between theliquid inlet pipeline and the liquid outlet pipeline; the hand wheel is used for rotating and driving the valve rod to reciprocate in the direction extending into the valve cavity, and the valve flapis used for blocking or conducting the communication area under the driving of the valve rod; and a sealing assembly is further arranged between the valve rod and the mounting opening, and the sealingassembly is used for sealing a gap between the valve rod and the mounting opening. According to the petroleum pipeline stop valve, the sealing performance of the stop valve can be improved, the leakage of the stop valve is prevented, and the safe and efficient conveying performance of a petroleum pipeline is ensured.

Description

technical field [0001] The invention relates to the technical field of oil production and transportation equipment, in particular to an oil pipeline shut-off valve and an oil delivery system. Background technique [0002] With the development of oil exploration and extraction, the oil transportation industry is also gradually flourishing. The current method used for oil transportation is pipeline transportation, that is, laying multiple pipelines on the transportation line, which can protect the oil while transferring the oil transportation. The stop valve of the oil pipeline is a mandatory part of the oil pipeline transportation system. Sealed valves are one of the tools to effectively control the on-off of oil pipelines, so the performance of globe valves affects the efficiency and reliability of oil pipeline transportation. [0003] The current oil pipeline shut-off valve is mainly arranged on the oil transportation pipeline, or at the liquid inlet or liquid outlet of th...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K27/02F16K1/36F16K31/60F16K41/04F16K41/02
CPCF16K1/00F16K27/02F16K1/36F16K31/60F16K41/04F16K41/02
Inventor 田晓燕赵海朝赵综凯李泓锐赵高楷
Owner PETROCHINA CO LTD
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