Diversion type anti-freezing joint

Abstract

The present invention is a flow-guiding anti-freezing joint, comprising: a joint body, the joint body can be connected between a sampling valve and an oil flow pipeline, and an axially through center hole is arranged on the joint body; a flow-guiding baffle, one end of the flow-guiding baffle is inserted and fixed in the center hole, the flow-guiding baffle separates the center hole into an oil outlet channel and an oil return channel, the oil outlet channel and the oil return channel are connected near one end of the sampling valve; a flow-guiding baffle is located at one end of the joint body and is provided with a flow-cutting live oil structure, the flow-cutting live oil structure is inserted in the oil flow pipeline and can guide crude oil to flow to the sampling valve through the oil outlet channel. The flow-guiding anti-freezing joint effectively avoids the generation of "dead oil", improves the sampling efficiency and the accuracy of oil product testing, reduces the sampling operation intensity when the temperature is low in winter, and ensures the cleanliness of the well site environment.

Description

Technical Field

[0001] The invention relates to the technical field of sampling at an oil field production station, and in particular to a flow-guiding anti-freezing joint. Background Art

[0002] Sampling oil wells at oil production stations is a daily routine for oil workers. When sampling, the "dead oil" in the sampling valve joint must be released first. Only when fresh crude oil is seen can the oil sample be taken to ensure the accuracy of oil product testing. When the temperature is low in winter, the "dead oil" in the short-circuit part freezes and blocks. Oil workers need to carry hot water to scald the frozen "dead oil", which increases the difficulty of sampling; at the same time, the process of releasing the "dead oil" may also cause well site pollution, increasing the difficulty of on-site environmental protection work.

[0003] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a flow-guiding anti-freezing joint to overcome the defects of the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a flow-guiding anti-freezing joint, which overcomes the problems existing in the prior art such as residual "dead oil" in the sampling valve, difficulty in sampling oil wells in winter, and environmental pollution. The flow-guiding anti-freezing joint effectively avoids the generation of "dead oil", improves the sampling efficiency and the accuracy of oil product testing, reduces the intensity of sampling operations when the temperature is low in winter, and ensures the cleanliness of the well site environment.

[0005] The object of the present invention is achieved by providing a flow-guiding anti-freezing joint, comprising:

[0006] A connector body, the connector body can be conductively connected between the sampling valve and the oil flow pipeline, and the connector body is provided with an axially penetrating center hole;

[0007] A guide baffle, one end of which is inserted and fixed in the center hole, the guide baffle divides the center hole into an oil outlet channel and an oil return channel, the oil outlet channel and the oil return channel are connected at one end close to the sampling valve; an oil cut-off live oil structure is arranged at one end of the guide baffle located outside the joint body, the oil cut-off live oil structure is inserted in the oil flow pipeline and can guide the crude oil to flow to the sampling valve through the oil outlet channel.

[0008] In a preferred embodiment of the present invention, the intercepting live oil structure includes an intercepting main plate arranged perpendicular to the oil flow direction, the free end of the intercepting main plate is bent in the opposite direction of the oil flow direction, intercepting side plates bent in the opposite direction of the oil flow direction are arranged on both sides of the intercepting main plate, an intercepting space is formed between the intercepting main plate and the intercepting side plates on both sides, and the intercepting space is connected to the oil outlet channel.

[0009] In a preferred embodiment of the present invention, the guide baffle is arranged perpendicular to the oil flow direction, and the guide baffle is arranged along the central axis of the central hole.

[0010] In a preferred embodiment of the present invention, a connecting thread section is disposed at one axial end of the joint body, and a welding portion is disposed at the other axial end of the joint body.

[0011] In a preferred embodiment of the present invention, the joint body is a 3 / 4 pipe, and the connecting thread section is a 3 / 4 pipe thread.

[0012] In a preferred embodiment of the present invention, the width dimension of one end of the guide baffle is smaller than the inner diameter dimension of the center hole, and the one end of the guide baffle is welded and fixed in the center hole.

[0013] As described above, the flow-guiding anti-freezing joint provided by the present invention has the following beneficial effects:

[0014] The flow-guiding anti-freezing joint provided by the present invention is an auxiliary device for oil well sampling in oil field production stations. The intercepting live oil structure therein can keep the crude oil at the sampling position in the oil process pipeline turning over to avoid freezing and blockage of "dead oil", thereby improving the sampling efficiency and the accuracy of oil product testing, effectively avoiding condensation at the sampling valve, reducing the intensity of sampling operation when the temperature is low in winter, and ensuring the cleanliness of the well site environment. The flow-guiding anti-freezing joint provided by the present invention has a simple structure, is easy to process, is low in cost, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0016] Figure 1 : is a cross-sectional view of the flow-guiding anti-freezing joint of the present invention.

[0017] Figure 2 : It is a top view of the flow-guiding anti-freezing joint of the present invention.

[0018] Figure 3 : is a schematic diagram of the connector body of the present invention.

[0019] Figure 4 : It is the front view of the guide baffle and the interception live oil structure of the present invention.

[0020] Figure 5 : It is a top view of the guide baffle and the intercepting live oil structure of the present invention.

[0021] Figure 6 :for Figure 4 Cross-sectional view at AA in the middle.

[0022] Figure 7: It is a schematic diagram of the working state of the flow-guiding anti-freezing joint of the present invention when the sampling valve is closed.

[0023] Figure 8 : It is a schematic diagram of the working state of the flow-guiding anti-freezing joint of the present invention when the sampling valve is opened.

[0024] In the figure:

[0025] 100. Flow-guiding anti-freezing joint;

[0026] 101, oil outlet channel; 102, oil return channel;

[0027] 1. Connector body;

[0028] 10. Center hole; 11. Connecting thread section; 12. Welding part;

[0029] 2. Diversion baffle;

[0030] 3. Intercepting live oil structure;

[0031] 31. Cut-off main plate; 32. Cut-off side plate;

[0032] 8. Sampling valve;

[0033] 9. Oil process pipeline. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0035] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] like Figures 1 to 8 As shown, the present invention provides a flow-guiding anti-freezing joint 100, comprising a joint body 1 and a flow-guiding baffle 2, the joint body 1 can be connected between a sampling valve 8 and an oil flow pipeline 9, one end of the joint body can be connected to the sampling valve 8 to form a sampling outlet, and the other end of the joint body 1 can be connected to the oil flow pipeline 9 to form a sampling inlet, and an axially through-going center hole 10 is arranged on the joint body 1; one end of the flow-guiding baffle 2 is inserted and fixed in the center hole 10, and the flow-guiding baffle 2 separates the center hole 10 to form an oil outlet channel 101 and an oil return channel 102, and the oil outlet channel 101 and the oil return channel 102 are connected at one end close to the sampling valve 8; an end of the flow-guiding baffle 2 located outside the joint body 1 is provided with a flow-cutting live oil structure 3, and the flow-cutting live oil structure 3 is inserted in the oil flow pipeline 9 and can guide the crude oil to flow to the sampling valve 8 through the oil outlet channel 101. The oil outlet channel 101 and the oil return channel 102 are both connected to the inner cavity of the sampling valve 8. When the sampling valve 8 is closed, the intercepted crude oil returns to the oil flow pipeline 9 through the oil outlet channel 101 and the inner cavity of the sampling valve 8 through the oil return channel 102. When the sampling valve 8 is opened for sampling, the intercepted crude oil flows out through the oil outlet channel 101 and the inner cavity of the sampling valve 8 to complete the sampling. Under the action of the interception and activation oil structure 3, the crude oil in the oil flow pipeline 9 is kept turning to avoid freezing of "dead oil".

[0038] The flow-guiding anti-freezing joint provided by the present invention is an auxiliary device for oil well sampling in oil field production stations. The intercepting live oil structure therein can keep the crude oil at the sampling position in the oil process pipeline turning over to avoid freezing and blockage of "dead oil", thereby improving the sampling efficiency and the accuracy of oil product testing, effectively avoiding condensation at the sampling valve, reducing the intensity of sampling operation when the temperature is low in winter, and ensuring the cleanliness of the well site environment. The flow-guiding anti-freezing joint provided by the present invention has a simple structure, is easy to process, is low in cost, and is suitable for popularization and use.

[0039] Further, if Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the interception live oil structure 3 includes an interception main plate 31 arranged perpendicular to the oil flow direction (when the interception main plate 31 is perpendicular to the oil flow direction, the effect is best, and the interception main plate 31 and the perpendicular direction of the oil flow direction may also be at a certain angle, and the specific angle is determined according to actual needs). In this embodiment, the interception main plate 31 is integrally formed with the guide baffle 2, and the free end of the interception main plate 31 is bent in the opposite direction of the oil flow direction. Interceptor side plates 32 bent in the opposite direction of the oil flow direction are arranged on both sides of the interception main plate 31. An interception space is formed between the interception main plate 31 and the interception side plates 32 on both sides, and the interception space is connected to the oil outlet channel 101. In this embodiment, the guide baffle 2 is arranged perpendicular to the oil flow direction, and the guide baffle 2 is arranged along the central axis of the central hole 10.

[0040] like Figure 7 and Figure 8 As shown, the interception main board 31 and the interception side plates 32 on both sides face the direction of the incoming oil (the arrow indicates the direction of the oil flow). When the oil flow is running, the oil flows into the interception space between the interception main board 31 and the interception side plates 32 on both sides. The oil flows upward under resistance in three directions. At the same time, due to the throttling effect of the interception active oil structure 3 in the oil flow, a pressure difference is formed, which further aggravates the upward power of the crude oil flow. The crude oil flows upward into the oil outlet channel 101. When the sampling valve 8 is closed, the intercepted crude oil returns to the oil flow pipeline 9 through the oil outlet channel 101 and the inner cavity of the sampling valve 8 through the oil return channel 102. The oil flows continuously through the joint body 1, making the position where the "dead oil" was originally formed "live", and it cannot be frozen even when the temperature is low in winter; when the sampling valve 8 is opened for sampling, the fresh intercepted crude oil flows out through the oil outlet channel 101 and the inner cavity of the sampling valve 8, and the sampling is completed. The sampling is convenient and fast for the oil production workers, which reduces the labor intensity and ensures the accuracy of oil product testing and the cleanliness of the well site environment.

[0041] Further, if Figure 1 , Figure 3 As shown, a connecting thread section 11 is provided at one axial end of the joint body 1, and a welding portion 12 is provided at the other axial end of the joint body. In a specific embodiment of the present invention, the joint body 1 is a 3 / 4 pipe, and the connecting thread section 11 is a 3 / 4 pipe thread. One end of the joint body 1 is thread-sealedly connected to the sampling valve 8 through the connecting thread section 11, and the other end of the joint body 1 is welded and fixed to the oil process pipeline 9 through the welding portion 12.

[0042] Furthermore, the width dimension of one end of the guide baffle 2 is smaller than the inner diameter dimension of the center hole 10 (the size difference between the two is sufficient to ensure that one end of the guide baffle 2 can be flexibly inserted into the center hole 10, and the size difference cannot be too large), and one end of the guide baffle 2 is welded and fixed in the center hole 10.

[0043] As described above, the flow-guiding anti-freezing joint provided by the present invention has the following beneficial effects:

[0044] The flow-guiding anti-freezing joint provided by the present invention is an auxiliary device for oil well sampling in oil field production stations. The intercepting live oil structure therein can keep the crude oil at the sampling position in the oil process pipeline turning over to avoid freezing and blockage of "dead oil", thereby improving the sampling efficiency and the accuracy of oil product testing, effectively avoiding condensation at the sampling valve, reducing the intensity of sampling operation when the temperature is low in winter, and ensuring the cleanliness of the well site environment. The flow-guiding anti-freezing joint provided by the present invention has a simple structure, is easy to process, is low in cost, and is suitable for popularization and use.

[0045] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A flow-guiding anti-freezing joint, characterized in that: include, A connector body, the connector body can be conductively connected between the sampling valve and the oil flow pipeline, and the connector body is provided with an axially penetrating center hole; A flow guide baffle, one end of which is inserted and fixed in the center hole, the flow guide baffle divides the center hole into an oil outlet channel and an oil return channel, the oil outlet channel and the oil return channel are connected at one end close to the sampling valve; an oil interception live oil structure is arranged at one end of the flow guide baffle located outside the joint body, the oil interception live oil structure is inserted in the oil flow pipeline and can guide the crude oil to flow to the sampling valve through the oil outlet channel; The interception flow oil structure comprises an interception main plate arranged perpendicular to the oil flow direction, the free end of the interception main plate is bent in the opposite direction of the oil flow direction, interception side plates are arranged on both sides of the interception main plate and are bent in the opposite direction of the oil flow direction, an interception space is formed between the interception main plate and the interception side plates on both sides, and the interception space is connected to the oil outlet channel; The guide baffle is arranged perpendicular to the oil flow direction, and the guide baffle is arranged along the central axis of the central hole.

2. The flow-guiding anti-freezing joint according to claim 1, characterized in that: A connecting thread section is arranged at one axial end of the joint body, and a welding portion is arranged at the other axial end of the joint body.

3. The flow-guiding anti-freezing joint according to claim 2, characterized in that: The joint body is a 3 / 4 pipe, and the connecting thread section is a 3 / 4 pipe thread.

4. The flow-guiding anti-freezing joint according to claim 1, characterized in that: The width dimension of one end of the guide baffle is smaller than the inner diameter dimension of the central hole, and the one end of the guide baffle is welded and fixed in the central hole.

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