Gate-free automatic switching oil nozzle manifold platform

Abstract

The utility model discloses a gate-free automatic switching oil nozzle manifold table which comprises a liquid inlet pipe, the liquid inlet pipe is sequentially communicated with one ends of a plurality of blow-off pipes in the fluid flowing direction, the other ends of the blow-off pipes are all communicated with a liquid outlet pipe, and the blow-off pipes are all connected with oil nozzles. A plurality of pressure limiting assemblies and pressure relief assemblies are arranged on the liquid inlet pipe and the blow-off pipes respectively, and each pressure limiting assembly is arranged at the corresponding position between every two adjacent blow-off pipes; according to the utility model, the design structure is reasonable, a blowout loop can be formed through the liquid inlet pipe, the blowout pipe, the plurality of liquid outlet pipes and the corresponding oil nozzles, then the liquid inlet pipe and the blowout pipe are respectively provided with the corresponding pressure limiting assembly and the pressure relief assembly, and the automatic switching of the oil nozzles is realized through the pressure relief assembly and the pressure limiting assembly; therefore, constructors are prevented from entering a high-pressure dangerous area, and the problem that the constructors need to enter the dangerous high-pressure area to replace an oil nozzle after a gate of an oil nozzle manifold platform is manually closed and controlled in the prior art, and large potential safety hazards exist is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas test and spraying, in particular to a gateless automatic switching oil nozzle manifold. Background Art

[0002] Test gas blowout is an important process in oil and gas exploration and development. In this process, the wellhead is opened artificially to allow the oil and gas in the well to be sprayed out of the well in a controlled manner for oil and gas testing. However, since there are many risks and challenges in the test gas blowout process, it is necessary to strictly follow the operating procedures to ensure the safety and effectiveness of the operation process.

[0003] In previous gas testing operations, in order to control the flow and gas flow, it is necessary to use the nozzle manifold gate. However, it is usually necessary for construction personnel to enter the dangerous high-pressure area, manually close the nozzle manifold gate, and then replace the nozzle. However, there is a great hidden danger for construction personnel to enter the dangerous high-pressure area to replace the nozzle, which may seriously cause personal accidents. For this reason, we provide a gateless automatic switching nozzle manifold to solve the above problems. Utility Model Content

[0004] The utility model aims to make up for the deficiencies of the prior art and provides a gateless automatic switching nozzle manifold.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gateless automatic switching nozzle manifold, characterized in that it comprises a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are connected through a discharge nozzle, a plurality of discharge nozzles are provided, and a nozzle is installed on each of the plurality of discharge nozzles;

[0007] The plurality of discharge nozzles are also respectively connected with pressure relief components, and along the flow direction of the fluid in the liquid inlet pipe, the triggering pressure relief pressure of the plurality of pressure relief components decreases in sequence;

[0008] A plurality of pressure limiting components are arranged on the liquid inlet pipe, and the pressure limiting components are respectively located between two adjacent discharge nozzles, and along the flow direction of the fluid in the liquid inlet pipe, the pressure limiting pressure of the pressure limiting components is respectively adapted to the triggering pressure relief pressure of the pressure relief components on the discharge nozzles in front thereof.

[0009] Furthermore, along the moving direction of the fluid in the liquid inlet pipe, the diameter of the oil nozzle gradually increases.

[0010] Furthermore, the pressure relief component is a spring-loaded pressure relief valve; and the pressure limiting component is a spring-loaded pressure limiting valve.

[0011] Furthermore, a check valve is provided on each of the plurality of discharge nozzles. The check valve is located between the liquid outlet pipe and the oil nozzle and is used for one-way flow of liquid.

[0012] Furthermore, two cleaning assemblies are respectively provided on a plurality of the spray pipes, and the two cleaning assemblies are both provided between the one-way valve and the pressure relief assembly, and the oil nozzle is located between the two cleaning assemblies for cleaning the oil nozzle.

[0013] Furthermore, two groups of mounting holes are formed through the nozzle, each group of mounting holes includes a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are symmetrically arranged, and together with the channel in the nozzle, form a cross-shaped channel;

[0014] The cleaning assembly includes a first storage cylinder and a second storage cylinder, the first storage cylinder and the second storage cylinder are connected to the first mounting hole and the second mounting hole respectively, a control cylinder is slidably connected in the first storage cylinder, and a driving assembly is also arranged in the second storage cylinder, the driving assembly is used to drive the control cylinder to reciprocate between the first storage cylinder and the second storage cylinder to block the spray pipe;

[0015] The control cylinder is provided with a flushing channel, which is connected with the oil nozzle and the outside world and is used to pass cleaning materials into the discharge nozzle where the oil nozzle is located to clean the oil nozzle.

[0016] Furthermore, the flushing channel includes an arc tube, and the control cylinder is a cylindrical structure with both ends closed. The arc tube is located in the control cylinder, and the two ends of the arc tube are respectively connected to the side wall of the control cylinder facing the oil nozzle and the end close to the first receiving cylinder, and when the control cylinder moves, the position of the side wall of the control cylinder penetrated by the arc tube can make the arc tube connected with the discharge pipe; a feed pipe is provided on the first receiving cylinder, at least when the arc tube is connected with the discharge pipe, the cleaning material can be transported from the arc tube to the discharge pipe where the oil nozzle is located through the feed pipe via the first receiving cylinder.

[0017] Furthermore, the control tube is provided with a first through hole and a second through hole penetrating through the side walls on both sides, and the first through hole and the second through hole can connect the nozzles on both sides of the control tube; a first shielding portion is provided on one side of the first through hole, and the first shielding portion at least partially shields the first shielding portion; a second shielding portion is provided on one side of the second through hole, and the first shielding portion and the second shielding portion are located on the same side of the cross-shaped channel, and the first shielding portion is located below the second shielding portion, and the shielding range of the first shielding portion is larger than that of the second shielding portion, and when the control tube moves into the second storage tube, the first through hole and the second through hole are blocked by the wall of the second storage tube to form a sealed storage cavity.

[0018] Furthermore, the feed pipe is located at one end of the first receiving cylinder, and the feed pipe is connected to one end of the arc tube located at the end of the control cylinder through the chamber in the first receiving cylinder, so that the pressure at one end of the control cylinder is increased when the cleaning material is input, thereby driving the control cylinder to move;

[0019] A spring is arranged in the second storage cylinder, one end of the spring is connected to the other end of the control cylinder, and is used to drive the control cylinder to reset.

[0020] Compared with the prior art, the gateless automatic switching nozzle manifold has the following beneficial effects:

[0021] The utility model forms a spraying circuit through a liquid inlet pipe, a spraying pipe, a plurality of liquid outlet pipes and corresponding oil nozzles, and then corresponding pressure limiting components and pressure relief components are respectively provided on the liquid inlet pipe and the spraying pipe. Automatic switching of the oil nozzles is achieved through the pressure relief component and the pressure limiting component to prevent construction personnel from entering a high-pressure dangerous area, thereby solving the problem that the existing oil nozzle manifold gate is manually closed and replaced, which requires construction personnel to enter a dangerous high-pressure area and poses a great safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a partial cross-sectional view of the central nozzle of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the control cylinder in the utility model;

[0025] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure of .

[0026] In the figure: 1. liquid inlet pipe; 2. discharge nozzle; 3. liquid outlet pipe; 4. oil nozzle; 5. pressure relief valve; 6. pressure limiting valve; 7. first storage cylinder; 8. second storage cylinder; 9. control cylinder; 10. first shielding part; 11. second shielding part; 12. arc tube; 13. feed pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-4 As shown, the utility model provides a technical solution: a gateless automatic switching nozzle manifold, comprising a liquid inlet pipe 1 and a liquid outlet pipe 3, the liquid inlet pipe 1 and the liquid outlet pipe 3 are connected via a discharge nozzle 2, a plurality of discharge nozzles 2 are provided, and a nozzle 4 is installed on each of the discharge nozzles 2; a plurality of discharge nozzles 2 are also respectively connected with pressure relief components, and along the flow direction of the fluid in the liquid inlet pipe 1, the triggering pressure relief pressures of the plurality of pressure relief components decrease successively; a plurality of pressure limiting components are provided on the liquid inlet pipe 1, and the pressure limiting components are respectively located between two adjacent discharge nozzles 2, and along the flow direction of the fluid in the liquid inlet pipe 1, the pressure limiting pressures of the pressure limiting components are respectively adapted to the triggering pressure relief pressures of the pressure relief components on the discharge nozzles 2 in front of them.

[0029] The diameter of the nozzle 4 gradually increases along the direction of fluid movement in the liquid inlet pipe 1; when in use, since the pressure value gradually decreases along the direction of the fluid in the liquid inlet pipe 1, a nozzle 4 with a larger diameter is used to more quickly discharge the residual liquid in the wellbore and formation to avoid water lock and flooding.

[0030] The pressure relief component is a spring-loaded pressure relief valve 5; the pressure limiting component is a spring-loaded pressure limiting valve 6; the number of the pressure limiting valves 6 is one less than the number of the pressure relief valves 5. When in use, when there are four discharge nozzles 2 and the pump stop pressure is between 20MPa and 30MPa, along the flow direction of the fluid in the liquid inlet pipe 1, the pressure relief value range of the first pressure relief valve 5 is adjusted to ≥15MPa, the second pressure relief valve 5: the pressure relief value is adjusted to 15MPa>pressure relief value ≥10MPa, and the third pressure relief valve Valve 5: pressure relief value adjusted to 10MPa> pressure relief value ≥6MPa, the fourth pressure relief valve 5: pressure relief value adjusted to 6MPa> pressure relief value to 0MPa; the pressure limiting valve 6 is, the first pressure limiting valve 6: pressure limiting value ≥15MPa, the second pressure limiting valve 6: 15MPa> pressure limiting value ≥10MPa, the third pressure limiting valve 6: 10MPa> pressure limiting value ≥6MPa; the calibers of the first oil nozzle 4 to the fourth oil nozzle 4 are 3mm--5mm--8mm- -10mm; the fluid flows in at one end of the liquid inlet pipe 1, and when it flows into the first pressure limiting valve 6 and the first pressure relief valve 5, when the pressure of the fluid is greater than 15MPa, the ejector pin of the first pressure relief valve 5 is opened, that is, the flow channel is opened, and the fluid passes through the first pressure relief valve 5 and is sprayed at the first oil nozzle 4. At the same time, since the pressure limit value of the first pressure limiting valve 6 is ≥15MPa, the internal spring of the first pressure limiting valve 6 is squeezed and deformed, thereby pushing the ejector pin seal, that is, the flow channel is closed, so that the fluid cannot pass through the first pressure limiting valve 6 and can only be sprayed at the first oil nozzle 4. Then, when the fluid pressure is between 10MPa and 15MPa, the second pressure limiting valve 6 cannot be opened due to excessive pressure, and the first pressure relief valve 5 cannot be opened due to excessive pressure, and then the fluid at this time can only pass through the second pressure relief valve 5 and then be sprayed at the second oil nozzle 4. Then, by analogy, a single oil nozzle 4 is automatically selected for spraying under different pressures.

[0031] A one-way valve is provided on each of the discharge nozzles 2, and the one-way valve is located between the liquid outlet pipe 3 and the oil nozzle 4 for one-way flow of liquid; two cleaning components are also provided on each of the discharge nozzles 2, and the two cleaning components are both arranged between the one-way valve and the pressure relief component, and the oil nozzle 4 is located between the two cleaning components for cleaning the oil nozzle 4.

[0032] Two groups of mounting holes are formed through the nozzle 2, each group of mounting holes includes a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are symmetrically arranged to form a cross-shaped channel together with the channel in the nozzle 2;

[0033] The cleaning assembly includes a first storage tube 7 and a second storage tube 8, which are connected to the first mounting hole and the second mounting hole respectively. A control tube 9 is slidably connected in the first storage tube 7. A driving assembly is also arranged in the second storage tube 8. The driving assembly is used to drive the control tube 9 to reciprocate between the first storage tube 7 and the second storage tube 8 to block the spray nozzle 2.

[0034] The control cylinder 9 is provided with a flushing channel, which connects the oil nozzle 4 with the outside world and is used to pass cleaning materials into the discharge nozzle 2 where the oil nozzle 4 is located to clean the oil nozzle 4.

[0035] During use, the two circular holes are symmetrically distributed and their diameters are the same as those in the first storage tube 7 and the second storage tube 8, so that under the drive of the driving assembly, the control tube 9 can slide back and forth across the three to achieve the opening and closing of the cross-shaped channel; a sealing gasket is provided on the outside of the control tube 9 to maintain a seal with the inner walls of the first storage tube 7 and the second storage tube 8.

[0036] The flushing channel includes an arc tube 12. The control tube 9 is a cylindrical structure with both ends closed. The arc tube 12 is located in the control tube 9. The two ends of the arc tube 12 are respectively connected to the side wall of the control tube 9 facing the oil nozzle 4 and the end close to the first receiving tube 7. When the control tube 9 moves, the position of the side wall of the control tube 9 penetrated by the arc tube 12 can make the arc tube 12 communicate with the discharge nozzle 2; the first receiving tube 7 is provided with a feed pipe 13, at least when the arc tube 12 is connected with the discharge nozzle 2, the cleaning material can The cleaning liquid or gas is transported from the arc tube 12 to the discharge nozzle 2 where the oil nozzle 4 is located through the feed pipe 13 via the first receiving tube 7; when in use, the feed pipe 13 is an external liquid or gas supply device, and after the driving component drives the control tube 9 to move a certain distance, the two corresponding control tubes 9 respectively close the passages between the discharge nozzle 2 and the liquid inlet pipe 1 and the liquid outlet pipe 3, and then the cleaning liquid or gas is input into the discharge nozzle 2 through the feed pipe 13, and then continuously sprayed out at the oil nozzle 4 of the discharge nozzle 2, thereby cleaning the oil nozzle 4.

[0037] The control tube 9 is provided with a first through hole and a second through hole which penetrate the side walls on both sides, and the first through hole and the second through hole can connect the discharge nozzles 2 on both sides of the control tube 9; a first shielding portion 10 is provided on one side of the first through hole, and the first shielding portion 10 at least partially shields the first shielding portion 10; a second shielding portion 11 is provided on one side of the second through hole, and the first shielding portion 10 and the second shielding portion 11 are located on the same side of the cross-shaped channel, and the first shielding portion 10 is located below the second shielding portion 11, and the shielding range of the first shielding portion 10 is larger than that of the second shielding portion 11. When the control tube 9 moves into the second storage tube 8, the first through hole and the second through hole are blocked by the wall of the second storage tube 8 to form a sealed storage cavity; when in use, one end of the first shielding portion 10 is in an arc shape, and the diameter is the same as the inner diameter of the discharge nozzle 2, and the length of the first shielding portion 10 is larger than the length of the second shielding portion 11, and the second shielding portion 11 is located between the first shielding part and the oil nozzle 4, and the arc tube 12 is connected to one side of the second shielding part 11; the outer sides of the first shielding part 10 and the second shielding part 11 are both arc-shaped, and the arc is adapted to the outer diameter surface of the control tube 9. During the initial spraying, the second shielding part 11 and the first shielding part 10 are both located inside the first receiving tube 7. After the liquid enters the spray pipe 2, it flows along the spray pipe 2 and continues to pass through the arc at the end of the first shielding part 10. Then, when cleaning the oil nozzle 4, the control tube 9 is driven to move. Since the length of the first shielding part 10 is greater than that of the second shielding part 11, it will first enter the cross-shaped channel to close the spray pipe 2 channel, and then continue to move until the second shielding part 11 closes the spray pipe 2 channel. At the same time, the arc tube 12 is also connected to the spray pipe 2, and then the oil nozzle 4 is cleaned by introducing external cleaning liquid or gas.

[0038] The feed pipe 13 is located at one end of the first receiving cylinder 7, and the feed pipe 13 is connected with one end of the arc tube 12 located at the end of the control cylinder 9 through the chamber in the first receiving cylinder 7, so that the pressure at one end of the control cylinder 9 is increased when the cleaning material is input, thereby driving the control cylinder 9 to move; a spring is provided at the other end of the control cylinder 9 for driving the control cylinder 9 to reset; when in use, the cleaning material is input through the feed pipe 13 at one end inside the first receiving cylinder 7. Since the end of the arc tube 12 on the side wall of the control cylinder 9 is located on the inner side of the first receiving cylinder 7 at this time, it is blocked by the inner wall of the first receiving cylinder 7 and the material cannot be discharged, so that the pressure at the end of the control cylinder 9 in contact with the cleaning material increases, and the control cylinder 9 is pushed to open under the pressure of the input cleaning material. The spring is compressed to move the control cylinder 9 until the arc tube 12 moves to the cross-shaped channel and connects with the oil nozzle 4, thereby flushing the oil nozzle 4; at the same time, a discharge pipe is also installed on the feed pipe 13, or after cleaning, the feed pipe 13 is connected with the outside to facilitate the discharge of the cleaning material, and the spring pushes the control cylinder 9 to reset. One end of the spring is fixedly connected to one end of the control cylinder 9, and the other end is fixedly connected to the inner wall of the second receiving cylinder 8, assisting the reciprocating movement of the control cylinder 9 and limiting the rotation of the control cylinder 9; the rotation of the control cylinder 9 can also be limited by arranging a protrusion on the control cylinder 9 and a corresponding slide groove in the second control; the control cylinder 9 is provided with a sealing strip and a sealing ring to improve the sealing between it and the first receiving cylinder 7.

Claims

1. A gateless automatic switching nozzle manifold, characterized by: It comprises a liquid inlet pipe (1) and a liquid outlet pipe (3), wherein the liquid inlet pipe (1) and the liquid outlet pipe (3) are connected via a discharge nozzle (2), a plurality of discharge nozzles (2) are provided, and each of the plurality of discharge nozzles (2) is provided with an oil nozzle (4); The plurality of discharge nozzles (2) are also respectively connected to pressure relief components, and along the flow direction of the fluid in the liquid inlet pipe (1), the triggering pressure relief pressures of the plurality of pressure relief components decrease in sequence; A plurality of pressure limiting components are arranged on the liquid inlet pipe (1), and the pressure limiting components are respectively located between two adjacent discharge nozzles (2), and along the flow direction of the fluid in the liquid inlet pipe (1), the pressure limiting pressure of the pressure limiting components is respectively adapted to the triggering pressure relief pressure of the pressure relief components on the discharge nozzles (2) in front thereof.

2. The gateless automatic switching nozzle manifold according to claim 1 is characterized by: Along the moving direction of the fluid in the liquid inlet pipe (1), the diameter of the oil nozzle (4) gradually increases.

3. The gateless automatic switching nozzle manifold according to claim 1 is characterized by: The pressure relief component is a spring-type pressure relief valve (5); and the pressure limiting component is a spring-type pressure limiting valve (6).

4. The gateless automatic switching nozzle manifold according to claim 1 is characterized by: A check valve is provided on each of the plurality of discharge nozzles (2). The check valve is located between the liquid outlet pipe (3) and the oil nozzle (4) and is used for one-way flow of liquid.

5. The gateless automatic switching nozzle manifold according to claim 1 is characterized by: Two cleaning assemblies are also respectively arranged on a plurality of the discharge nozzles (2), and the two cleaning assemblies are arranged between the one-way valve and the pressure relief assembly, and the oil nozzle (4) is located between the two cleaning assemblies for cleaning the oil nozzle (4).

6. The gateless automatic switching nozzle manifold according to claim 5 is characterized by: The nozzle discharge pipe (2) is provided with two groups of mounting holes, each group of mounting holes comprises a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are symmetrically arranged, and together with the channel in the nozzle discharge pipe (2) form a cross-shaped channel; The cleaning assembly comprises a first storage tube (7) and a second storage tube (8), the first storage tube (7) and the second storage tube (8) are connected to the first mounting hole and the second mounting hole respectively, a control tube (9) is slidably connected inside the first storage tube (7), and a driving assembly is also arranged inside the second storage tube (8), the driving assembly is used to drive the control tube (9) to reciprocate between the first storage tube (7) and the second storage tube (8) to block the spray pipe (2); The control cylinder (9) is provided with a flushing channel, which communicates with the oil nozzle (4) and the outside world and is used to pass cleaning materials into the discharge nozzle (2) where the oil nozzle (4) is located to clean the oil nozzle (4).

7. The gateless automatic switching nozzle manifold according to claim 6 is characterized by: The flushing channel comprises an arc tube (12), the control tube (9) is a cylindrical structure with two ends closed, the arc tube (12) is located in the control tube (9), the two ends of the arc tube (12) are respectively connected to the side wall of the control tube (9) facing the oil nozzle (4) and the end close to the first storage tube (7), and when the control tube (9) moves, the position of the side wall of the control tube (9) penetrated by the arc tube (12) can make the arc tube (12) communicate with the discharge nozzle (2); the first storage tube (7) is provided with a feeding pipe (13), at least when the arc tube (12) is connected with the discharge nozzle (2), the cleaning material can be transported from the arc tube (12) to the discharge nozzle (2) where the oil nozzle (4) is located through the first storage tube (7) through the feeding pipe (13).

8. The gateless automatic switching nozzle manifold according to claim 6 is characterized by: The control tube (9) is provided with a first through hole and a second through hole penetrating through the side walls on both sides, the first through hole and the second through hole enabling the nozzles (2) on both sides of the control tube (9) to communicate with each other; a first shielding portion (10) is provided on one side of the first through hole, the first shielding portion (10) at least partially shielding the first shielding portion (10); a second shielding portion (11) is provided on one side of the second through hole, the first shielding portion (10) and the second shielding portion (11) are located on the same side of the cross-shaped channel, the first shielding portion (10) is located below the second shielding portion (11), the shielding range of the first shielding portion (10) is larger than that of the second shielding portion (11), and when the control tube (9) moves into the second storage tube (8), the first through hole and the second through hole are shielded by the wall of the second storage tube (8) to form a sealed storage cavity.

9. The gateless automatic switching nozzle manifold according to claim 7 is characterized in that: The feed pipe (13) is located at one end of the first receiving cylinder (7), and the feed pipe (13) is connected to one end of the arc tube (12) located at the end of the control cylinder (9) through the chamber in the first receiving cylinder (7), so that the pressure at one end of the control cylinder (9) is increased when the cleaning material is input, thereby driving the control cylinder (9) to move; A spring is arranged in the second storage cylinder (8), one end of the spring is connected to the other end of the control cylinder (9) and is used to drive the control cylinder (9) to perform a reset movement.

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