阅读说明：本技术 一种防淹短接头及其使用方法 (Flooding-proof short joint and using method thereof ) 是由 王永夏 于 2021-06-24 设计创作，主要内容包括：本发明公开了一种防淹短接头,包括接箍、管体、水环和短接头本体,其中：管体,用于传输高压气体水环,设于管体的进气口处,在高压气体传输过程中,用于防止管体内壁凝结的水珠在连接口漏水短接头本体,用于积攒在输送中的高压气体在管体内壁凝结的水珠,以及通过高压气体将将所述积攒的水珠排出。本发明具有利于防止高压气体在管体内流动被凝结的水珠堵塞的优点。(The invention discloses a flooding-proof short joint, which comprises a coupling, a pipe body, a water ring and a short joint body, wherein: the high-pressure gas transmission device comprises a pipe body, a water ring for transmitting high-pressure gas, a short joint body for preventing water drops condensed on the inner wall of the pipe body from leaking at a connecting port, water drops condensed on the inner wall of the pipe body by collecting the high-pressure gas in the process of conveying, and water drops discharged by the high-pressure gas. The invention has the advantage of being beneficial to preventing the high-pressure gas from being blocked by condensed water drops flowing in the pipe body.)

1. The flooding-proof short joint is characterized by comprising a coupling, a pipe body, water rings and a short joint body, wherein the pipe body comprises at least two pipe sections which are axially connected through the coupling, the water rings are respectively arranged at air inlets of the pipe sections, and the short joint body is arranged at one end, close to the air inlets, in the pipe sections.

2. The short flood prevention joint as claimed in claim 1, wherein the water ring has an inner diameter near the corresponding collar equal to the inner diameter of the corresponding collar, and the inner wall of the water ring is arc-shaped.

3. The flood-proof short joint as claimed in claim 1, wherein a first through hole, a second through hole and a third through hole are coaxially and communicatively provided in the short joint body along the liquid inlet direction, a cavity is provided in the short joint body at the end far away from the first through hole, an inclined hole is provided in the cavity and communicates with the first through hole, the radial cross section of the first through hole is trapezoidal, the connection between the first through hole and the second through hole is a small-diameter end, the end of the first through hole facing the liquid inlet of the pipe body is a large-diameter end, and the inner diameter of the third through hole is larger than the inner diameter of the second through hole.

4. The short flood prevention joint as claimed in claim 3, wherein the number of the inclined holes is at least four, and the inclined holes are inclined along the liquid inlet direction of the pipe body.

5. A method of use for a short flood prevention joint according to any of claims 1 to 4, comprising the steps of:

s1, arranging the water ring inside the pipe body to form an arc-shaped inner wall of the water ring, and improving the gas circulation rate of the gas at the gas inlet of the pipe body to prevent condensed liquid from flowing out of the pipe body from the inside of the pipe body;

s2, arranging the short joint body in the pipe body at a position close to the air inlet, enabling air to enter the pipe body, enabling water drops condensed on the pipe wall to flow onto the short joint body, and enabling the water drops to enter the cavity on the short joint body for accumulating;

s3, when the gas passes through the first through hole and the second through hole, the sectional area is reduced, the flow speed is increased, the pressure is reduced, the pressure inside the cavity is higher than that at the second through hole at the same section, and the liquid in the cavity flows out of the water accumulation cavity through the inclined hole under the action of the pressure difference to the second through hole and is taken away by the gas fluid.

6. The method as claimed in claim 5, wherein in step S1, the air inlets and air outlets of the two pipe sections are connected by the coupling, the inner diameter of the water ring near the coupling end is equal to the inner diameter of the coupling, so as to prevent air from being blocked and condensed to form water drops during transportation, improve air circulation and prevent excessive water drops from being generated, and then the water ring inside the pipe body is set to have an arc shape on the inner wall of the water ring.

7. The use method of the flood-proof short joint as claimed in claim 5, wherein in step S2, four inclined holes are provided in the cavity of the short joint body, so that the condensed water drops on the inner wall of each pipe section can flow into the second through hole from the inclined holes and flow out with the gas.

8. The use method of the flood-proof short joint as claimed in claim 7, wherein the inclined holes in the cavity of the short joint body are arranged along the liquid inlet direction of the pipe section, the pressure difference of the same section enables the liquid in the cavity to flow out conveniently, and the flow out of the accumulated liquid is not hindered if the pressure difference is consistent with the gas flow direction.

Technical Field

The invention relates to the technical field of oil exploration, in particular to a flooding-proof short joint and a using method thereof.

Background

When oil exploration is carried out, high-pressure gas flows in a pipe column connected by a coupling and a pipe body, water in the gas is analyzed out along with the reduction of temperature and pressure and is condensed into water drops on the inner wall of the pipe body, the water drops flow to the bottom along the inner wall of the pipe, and the water is accumulated to a certain depth to block a pipe body channel through which the high-pressure gas flows, so that the gas cannot be conveyed.

Disclosure of Invention

Aiming at the problems, the invention provides a short flooding-preventing joint and a using method thereof, which have the advantage of being beneficial to preventing high-pressure gas from flowing in a pipe body and being blocked by condensed water drops.

The technical scheme of the invention is as follows:

a short flood prevention joint comprises a coupling, a pipe body, a water ring and a short joint body, wherein:

a pipe body for transmitting high pressure gas;

the water ring is arranged at the air inlet of the pipe body and is used for preventing water drops condensed on the inner wall of the pipe body from leaking at the connecting port in the high-pressure gas transmission process;

the short joint body is used for accumulating water drops condensed on the inner wall of the pipe body by high-pressure gas in conveying and discharging the accumulated water drops by the high-pressure gas.

The working principle of the technical scheme is as follows:

high-pressure gas flows to the inside of body from the junction of coupling and body, through the nipple body, because the decline of temperature and pressure, water in the gas is analyzed out, condense into the drop of water on the inner wall of body, the drop of water flows to the nipple body along the inside of body, then collect together in the nipple body, when the gas process, because the setting of nipple body is used Bernoulli's principle, the sectional area diminishes, the velocity of flow of fluid improves, pressure reduces for collect together with high-pressure gas outflow at this internal liquid of nipple, effectively prevent the collection of liquid and block up high-pressure gas's transport.

In a further technical scheme, the inner diameter of one end, close to the corresponding coupling, of the water ring is equal to the inner diameter of the coupling, and the inner wall of the water ring is arc-shaped.

The inner diameters of the water ring and the coupling are equal, so that the gas can be prevented from being blocked and condensing water drops in the transportation process, the gas circulation is reduced, and the generation of redundant water drops is prevented.

In a further technical scheme, this internal first through-hole, second through-hole and the third through-hole that is equipped with coaxially and communicates along the feed liquor direction of nipple, the nipple body is kept away from the circumference of first through-hole one end is equipped with the cavity, the inside of cavity be equipped with the inclined hole of first through-hole intercommunication, the radial cross-section of first through-hole is trapezoidal, the junction of first through-hole and second through-hole is aperture diameter end, the one end of first through-hole towards body inlet is the major aperture end, the internal diameter of third through-hole is greater than the internal diameter of second through-hole.

High-pressure gas flows into the pipe section from the joint of the coupling and the pipe section, passes through the first through hole, the second through hole and the third through hole, water in the gas is analyzed out due to the reduction of temperature and pressure, water drops are condensed on the inner wall of the pipe section, the water drops flow onto the short joint body along the inside of the pipe section and then flow into the cavity and accumulate the water drops, and when the gas passes through the cavity, according to the Bernoulli principle, the sectional area is reduced, the flow rate of the fluid is increased, the pressure is reduced, liquid accumulated in the cavity is taken away by the high-pressure gas due to the pressure difference generated at the joint of the second through hole and the third through hole, so that the blockage of the delivery of the high-pressure gas due to the accumulation of the liquid is effectively prevented.

In a further technical scheme, the inclined holes are at least four, and the inclined holes are inclined along the liquid inlet direction of the pipe body.

The circulation rate in the cavity can be increased by arranging the four inclined holes, and the inclined holes are inclined towards the liquid inlet direction of the pipe section, so that liquid accumulated in the cavity can flow out along the liquid inlet direction of the pipe section conveniently.

On the other hand, the invention also provides a using method of the flood-proof short joint, which comprises the following steps:

s1, arranging the water ring inside the pipe body to form an arc-shaped inner wall of the water ring, and improving the gas circulation rate of the gas at the gas inlet of the pipe body to prevent condensed liquid from flowing out of the pipe body from the inside of the pipe body;

s2, arranging the short joint body in the pipe body at a position close to the air inlet, enabling air to enter the pipe body, enabling water drops condensed on the pipe wall to flow onto the short joint body, and enabling the water drops to enter the cavity on the short joint body for accumulating;

s3, when the gas passes through the first through hole and the second through hole, the sectional area is reduced, the flow speed is increased, the pressure is reduced, the pressure inside the cavity is higher than that at the second through hole at the same section, and the liquid in the cavity flows out of the water accumulation cavity through the inclined hole under the action of the pressure difference to the second through hole and is taken away by the gas fluid.

In step S1, the air inlets and the air outlets of the two pipe sections are connected by the coupling, and the inner diameter of the water ring near one end of the coupling is equal to the inner diameter of the coupling, so as to prevent the air from being blocked and condensing water drops during transportation, improve the air circulation and prevent the generation of excessive water drops, and then the water ring inside the pipe body is set to have an arc-shaped inner wall of the water ring.

In step S2, four inclined holes are provided in the cavity of the short joint body, so that water drops condensed on the inner wall of each pipe section can flow into the second through hole from the inclined holes and flow out with the gas.

On the other hand, the inclined hole in the cavity of the short joint body is arranged along the liquid inlet direction of the pipe section, the liquid in the cavity is convenient to flow out due to the pressure difference of the same section, and the flowing out of the accumulated liquid cannot be hindered if the pressure difference is consistent with the flowing direction of the gas.

The invention has the beneficial effects that:

1. the pipeline can prevent water generated by the reduction of temperature and pressure from being analyzed into condensed water drops to block the transportation of gas when high-pressure gas flows in the pipeline section;

2. the inner diameters of the water ring and the coupling are equal, so that the gas can be prevented from being blocked and condensed to form water drops in the transportation process, the gas circulation is reduced, and the generation of redundant water drops is prevented;

3. high-pressure gas flows into the pipe section from the joint of the coupling and the pipe section, passes through the first through hole, the second through hole and the third through hole, water in the gas is analyzed out due to the reduction of temperature and pressure, water drops are condensed on the inner wall of the pipe section, the water drops flow onto the short joint body along the inside of the pipe section and then flow into the cavity and accumulate the water drops, and when the gas passes through the cavity, according to the Bernoulli principle, the sectional area is reduced, the flow rate of the fluid is increased, the pressure is reduced, and the liquid accumulated in the cavity is taken away by the high-pressure gas due to the pressure difference generated at the joint of the second through hole and the third through hole, so that the liquid accumulation is effectively prevented from blocking the delivery of the high-pressure gas;

4. the circulation rate in the cavity can be increased by arranging the four inclined holes, and the inclined holes are inclined towards the liquid inlet direction of the pipe section, so that liquid accumulated in the cavity can flow out along the liquid inlet direction of the pipe section conveniently.

Drawings

FIG. 1 is a front view of a pipe section according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a flooding-proof short joint according to an embodiment of the present invention.

Description of reference numerals:

1. a pipe section; 2. a coupling; 3. a third through hole; 4. a cavity; 5. an inclined hole; 6. a second through hole; 7. a first through hole; 8. a water ring; 9. short connector body.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, a short flood prevention joint comprises a coupling 2, a pipe body, a water ring 8 and a short joint body 9, wherein:

a pipe body for transmitting high pressure gas;

the water ring 8 is arranged at the air inlet of the pipe body and is used for preventing water drops condensed on the inner wall of the pipe body from leaking at the connecting port in the high-pressure gas transmission process;

the short joint body 9 is used for accumulating water drops condensed on the inner wall of the pipe body by high-pressure gas in conveying and discharging the accumulated water drops by the high-pressure gas.

The working principle of the technical scheme is as follows:

high-pressure gas flows to the inside of body from the junction of coupling 2 and body, through short connector body 9, because the decline of temperature and pressure, water in the gas is analyzed out, condense into the drop of water on the inner wall of body, the drop of water flows to short connector body 9 along the inside of body, then collect up in short connector body 9, when gas passes through, because the setting of short connector body 9 is used Bernoulli's principle, the sectional area diminishes, the velocity of flow of fluid improves, pressure reduces for liquid collecting up in short connector body 9 flows along with high-pressure gas, effectively prevent the collection of liquid and block up high-pressure gas's transport.

In another embodiment, as shown in fig. 2, the inner diameter of the water ring 8 near the end of the corresponding coupling 2 is equal to the inner diameter of the coupling 2, and the inner wall of the water ring 8 is arc-shaped.

The water ring 8 and the coupling 2 have the same inner diameter, so that the gas can be prevented from being blocked and condensed to form water drops in the transportation process, the gas circulation is reduced, and the generation of redundant water drops is prevented.

In another embodiment, as shown in fig. 2, a first through hole 7, a second through hole 6 and a third through hole 3 which are coaxial and communicated are arranged in the short joint body 9 along the liquid inlet direction, a cavity 4 is arranged in the circumferential direction of one end of the short joint body 9, which is far away from the first through hole 7, an inclined hole 5 communicated with the first through hole 7 is arranged in the cavity 4, the radial cross section of the first through hole 7 is trapezoidal, the joint of the first through hole 7 and the second through hole 6 is a small-hole-diameter end, one end of the first through hole 7, which faces the liquid inlet of the pipe body, is a large-hole-diameter end, and the inner diameter of the third through hole 3 is larger than the inner diameter of the second through hole 6.

High-pressure gas flows into the pipe body 1 from the joint of the coupling 2 and the pipe body 1, water in the gas is analyzed and condensed into water drops on the inner wall of the pipe body 1 through the first through hole 7, the second through hole 6 and the third through hole 3 due to the reduction of temperature and pressure, the water drops flow onto the short joint body 9 along the inside of the pipe body 1 and then flow into the cavity 4 and accumulate the water drops, when the gas passes through the gas, the sectional area is reduced due to the reduction of the sectional area, the flow speed of the fluid is improved, the pressure is reduced, and the liquid accumulated in the cavity 4 can be generated due to the pressure difference generated at the joint of the second through hole 6 and the third through hole 3 according to the Bernoulli principle, so that the liquid in the cavity 4 is subjected to high-pressure gas, and the liquid accumulation is effectively prevented from blocking the delivery of the high-pressure gas.

In another embodiment, as shown in fig. 2, the number of the inclined holes 5 is at least four, and the inclined holes 5 are inclined in the liquid inlet direction of the pipe body.

The circulation rate in the cavity 4 can be increased by arranging the four inclined holes 5, and the inclined holes 5 are inclined towards the liquid inlet direction of the pipe body 1, so that liquid accumulated in the cavity 4 can flow out along the liquid inlet direction of the pipe body 1 conveniently.

In another embodiment, a flow guide ring is further arranged in the water ring 8, the cross section of the flow guide ring is in a gourd shape, and the small-bore end of the flow guide ring faces the inside of the pipe body 1.

The working principle of the invention is as follows: firstly, the pipe body 1 is communicated through the coupling 2, high-pressure gas flows into the pipe body 1 from the joint of the coupling 2 and the pipe body 1, the water ring 8 can prevent the leakage of liquid, water in the gas is analyzed due to the reduction of temperature and pressure and is condensed into water drops on the inner wall of the pipe body 1 through the first through hole 7, the second through hole 6 and the third through hole 3, the water drops flow to the short joint body along the inside of the pipe body 1 and then flow into the cavity 4 and accumulate, as the small-bore end of the first through hole 7 is connected with the second through hole 6, when the gas passes through, the liquid in the cavity 4 is taken away by the high-pressure gas due to the pressure difference generated at the joint of the second through hole 6 and the third through hole 3 as the sectional area is reduced, the flow velocity of the fluid is increased, the pressure is reduced and the liquid accumulated in the cavity 4 is accumulated, effectively preventing the liquid from accumulating to block the delivery of high-pressure gas.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.