High-pressure nitrogen foam regulator
By introducing a diversion channel and spiral blades into the high-pressure nitrogen foam regulator, uniform mixing of nitrogen and water flow is achieved. The easy-to-disassemble connection structure solves the problems of uneven foam and time-consuming and laborious connection, thus improving the equipment's sand-carrying capacity and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
The uneven foam distribution in existing high-pressure nitrogen foam regulators leads to density fluctuations, reducing the equipment's sand-carrying capacity. Furthermore, the connection method is time-consuming and labor-intensive, affecting the equipment's practicality.
A high-pressure nitrogen foam regulator was designed, comprising a pressure-resistant shell, a foaming structure, and a connecting structure. It achieves uniform mixing of nitrogen and water flow through a diversion channel, spiral blades, and a rotatable connecting plate, and adopts a connection method that is easy to disassemble.
It improves the uniformity and density of foam, enhances the sand-carrying capacity of the equipment, simplifies the installation and disassembly process, and improves practicality.
Smart Images
Figure CN224141944U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oilfield extraction technology; more specifically, it relates to a high-pressure nitrogen foam regulator. Background Technology
[0002] High-pressure nitrogen foam regulators are high-pressure devices used to precisely control the mixing ratio of nitrogen and foam. They are widely used in oil extraction, fire fighting, and industrial cleaning, and are key equipment for improving operational efficiency and safety.
[0003] Currently, existing regulators often suffer from uneven foam mixing during use, leading to fluctuations in foam density. This can reduce the equipment's sand-carrying capacity and thus its practicality. Furthermore, most existing equipment uses threaded connections for pipe connections, making installation and disassembly inconvenient, time-consuming, and labor-intensive, further diminishing its usability. Therefore, a high-pressure nitrogen foam regulator is urgently needed to address these issues. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-pressure nitrogen foam regulator to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: a high-pressure nitrogen foam regulator, comprising:
[0006] The pressure-resistant shell has a foaming structure inside, and a water inlet pipe is fixedly connected to the outer surface of one side of the pressure-resistant shell. Both ends of the foaming structure and one end of the water inlet pipe are provided with connecting structures. The two ends of the foaming structure are respectively connected to an air inlet pipe and an output pipe. One end of the water inlet pipe is connected to a water inlet pipe, and the outer surface of the water inlet pipe is connected to a spare pipe. The spare pipe is equipped with a valve inside.
[0007] The foaming structure includes a diversion channel, a connecting seat, and a liquid outlet pipe, and the diversion channel is opened inside the inner wall surface on one side of the pressure-resistant shell.
[0008] The connection structure includes a first connecting plate, and the first connecting plate is provided in multiple sets, and the multiple sets of the first connecting plates are respectively fixedly connected to the outer surface of one end of the air inlet pipe, the output pipe and the water inlet pipe.
[0009] Preferably, the foaming structure further includes water inlet holes, which are located on the inner wall surface of one side of the distribution tank, and multiple sets of water inlet holes are provided. The connecting seat is engaged with the inner surface of one end of the pressure-resistant shell, and the outer surface of one end of the connecting seat is connected to an air intake rod. The inner wall surfaces on both sides of the air intake rod are provided with air intake holes, and multiple sets of air intake holes are provided. The outer surfaces of both ends of the air intake rod are fixedly connected to a support frame, and the outer surface of the middle position of the air intake rod is fixedly connected to a spiral blade. The outer surface of the support frame is fixedly connected to the inner wall surface of the pressure-resistant shell. The liquid outlet pipe is fixedly connected to the outer surface of the other end of the pressure-resistant shell, and one end of the liquid outlet pipe is connected to the interior of the output pipe, and the interior of the liquid outlet pipe is connected to the interior of the spare pipe. This design allows water to enter the interior of the distribution tank through the water inlet connecting pipe and enter the interior of the pressure-resistant shell through multiple sets of connecting seats.
[0010] Preferably, the pressure-resistant outer shell, the diversion channel, and the water inlet connecting pipe are internally connected, and the spiral blades are spiral-shaped. This design can accelerate the flow rate of nitrogen and water, allowing them to mix better.
[0011] Preferably, the inner surface of the outer surfaces at both ends of the first connecting plate is provided with a first movable groove, the inner wall surface of the first movable groove is provided with a rotating groove, and a rotating rod is engaged with the rotating groove. The inner surface of the outer surface of one end of the rotating rod is provided with a positioning hole, a positioning block is sleeved on the outer surface of the rotating rod, and an installation sleeve is fixedly connected to the upper outer surface of the positioning block. A positioning rod is inserted into the installation sleeve, and a spring is sleeved on the outer surface of the positioning rod. The other end of the connecting seat is fixedly connected to one end of the liquid outlet pipe and one end of the water inlet connecting pipe with a second connecting plate. The inner surface of the outer surfaces at both ends of the second connecting plate is provided with a second movable groove. This design allows the rotating rod to rotate inside the rotating groove.
[0012] Preferably, the external dimensions of one end of the rotating rod are adapted to the internal dimensions of the positioning block, a limit ring is fixedly connected to the outer surface of one end of the rotating rod, and an insertion ring is fixedly connected to one end of the positioning block, with the outer diameter of the insertion ring and the inner diameter of the second movable groove being adapted to each other. This design allows the positioning block to move on the outer surface of the rotating rod.
[0013] Preferably, a support ring is fixedly connected to the outer surface of the spring, and the outer surfaces of both ends of the spring abut against the surface of one side of the support ring and the inner wall surface of the inner side of the mounting sleeve, respectively. The external dimensions of the lower end of the positioning rod are adapted to the internal dimensions of the positioning hole. A guide block is fixedly connected to the bottom surface of the rotating rod. A guide groove is formed on the bottom surface inside the positioning block, and the internal dimensions of the guide groove are adapted to the external dimensions of the guide block. This design allows the positioning rod to automatically reset after moving inside the mounting sleeve.
[0014] The technical effects and advantages of this utility model are as follows: This utility model allows water to flow into the interior of the water inlet connecting pipe through the water inlet pipe, and then into the interior of the diversion groove. The water then flows evenly into the interior of the pressure-resistant shell through multiple sets of water inlet holes. At the same time, nitrogen gas can enter the interior of the connecting seat through the air inlet pipe, and then into the interior of the air inlet rod. Thus, the nitrogen gas enters the interior of the pressure-resistant shell evenly through multiple sets of air inlet holes. At this time, the nitrogen gas and water gas are fully mixed through the spiral outer surface of the spiral blades, which can avoid uneven foaming and thus avoid reducing the sand carrying capacity of the equipment, thereby improving the practicality of the equipment to a certain extent.
[0015] By aligning the positions of the first and second connecting plates, the rotating rod can be rotated to the inside of the second movable slot. Then, the position of the positioning block can be moved on the outer surface of one end of the rotating rod, allowing the insertion ring to be inserted into the second movable slot. Simultaneously, the lower end of the positioning rod is inserted into the positioning hole, thus completing the connection between the first and second connecting plates. The positioning rod can be pulled upwards to disengage its lower end from the positioning hole, and the position of the positioning block can be moved on the outer surface of one end of the rotating rod. The rotating rod can then be rotated and unfolded to disengage from the second movable slot. This facilitates the installation and disassembly of the equipment, saving time and effort and improving its practicality to a certain extent. Furthermore, its overall structure is simple and reasonable in design, highly practical, and easy to promote and apply. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a three-dimensional exploded view of the bubbling structure of this utility model.
[0018] Figure 3 This is a partial exploded view of the three-dimensional structure of the connection structure of this utility model.
[0019] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.
[0020] The attached figures are labeled as follows: 1. Pressure-resistant outer shell; 2. Bubble structure; 21. Diversion groove; 22. Water inlet; 23. Connecting seat; 24. Air inlet rod; 25. Air inlet; 26. Support frame; 27. Spiral blade; 28. Liquid outlet pipe; 3. Water inlet connecting pipe; 4. Connecting structure; 41. First connecting plate; 42. First movable groove; 43. Rotating groove; 44. Rotating rod; 45. Positioning hole; 46. Positioning block; 47. Mounting sleeve; 48. Positioning rod; 49. Spring; 410. Second connecting plate; 411. Second movable groove; 5. Air inlet pipe; 6. Output pipe; 7. Water inlet pipe; 8. Spare pipe. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The oilfield extraction involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Example 1
[0023] like Figures 1-4 As shown, this embodiment proposes a high-pressure nitrogen foam regulator, comprising:
[0024] The pressure-resistant outer shell 1 has a foaming structure 2 inside, and a water inlet connection pipe 3 is fixedly connected to the outer surface of one side of the pressure-resistant outer shell 1. Both ends of the foaming structure 2 and one end of the water inlet connection pipe 3 are provided with a connection structure 4. The two ends of the foaming structure 2 are respectively connected to an air inlet pipe 5 and an output pipe 6. One end of the water inlet connection pipe 3 is connected to a water inlet pipe 7, and the outer surface of the water inlet connection pipe 3 is connected to a spare pipe 8. The spare pipe 8 is equipped with a valve inside.
[0025] The foaming structure 2 includes a diversion channel 21, a connecting seat 23, and a liquid outlet pipe 28. The diversion channel 21 is located inside the inner wall surface of one side of the pressure-resistant housing 1. The foaming structure 2 also includes a water inlet 22, which is located inside the inner wall surface of one side of the diversion channel 21, and multiple sets of water inlets 22 are provided. The connecting seat 23 is engaged with the inner surface of one end of the pressure-resistant housing 1, and an air inlet rod 24 is connected to the outer surface of one end of the connecting seat 23. Multiple sets of air inlets 25 are provided inside the inner wall surfaces on both sides of the air inlet rod 24. Support frames 26 are fixedly connected to the outer surfaces of both ends of the air intake rod 24, and spiral blades 27 are fixedly connected to the outer surface of the middle position of the air intake rod 24. The outer surface of the support frame 26 is fixedly connected to the inner wall surface of the pressure-resistant shell 1. The liquid outlet pipe 28 is fixedly connected to the outer surface of the other end of the pressure-resistant shell 1, and one end of the liquid outlet pipe 28 is connected to the inside of the output pipe 6. The inside of the liquid outlet pipe 28 is connected to the inside of the spare pipe 8. The pressure-resistant shell 1, the diversion groove 21 and the water inlet connection pipe 3 are connected to each other. The spiral blades 27 are spiral in shape.
[0026] In this embodiment, the design allows water to enter the interior of the diversion tank 21 through the water inlet connection pipe 3, and the water is diverted through multiple sets of water inlet holes 22 into the interior of the pressure-resistant shell 1, thereby increasing the degree of fusion between nitrogen and water. The spiral design of the spiral blades 27 makes the mixing between nitrogen and water more uniform and increases the density of foam, thereby increasing the sand-carrying capacity of the equipment.
[0027] Example 2
[0028] like Figure 3 and Figure 4 As shown, based on the same concept as the above embodiments, this embodiment also proposes:
[0029] The connecting structure 4 includes a first connecting plate 41, and multiple sets of the first connecting plates 41 are provided. Each set of first connecting plates 41 is fixedly connected to the outer surface of one end of the air inlet pipe 5, the output pipe 6, and the water inlet pipe 7. First movable grooves 42 are formed inside the outer surfaces of both ends of the first connecting plates 41. Rotating grooves 43 are formed inside the inner wall surface of the first movable grooves 42. A rotating rod 44 is engaged inside the rotating groove 43. A positioning hole 45 is formed inside the outer surface of one end of the rotating rod 44. A positioning block 46 is fitted onto the outer surface of the rotating rod 44. An installation sleeve 47 is fixedly connected to the upper outer surface of the positioning block 46. A positioning rod 48 is inserted inside the installation sleeve 47. A spring 49 is fitted onto the outer surface of the positioning rod 48. The other end of the connecting seat 23 is connected to the liquid outlet pipe 28 and the water inlet pipe. One end of each connecting pipe 3 is fixedly connected to a second connecting plate 410, and the inner surface of the outer surfaces of both ends of the second connecting plate 410 is provided with a second movable groove 411. The outer dimensions of one end of the rotating rod 44 are adapted to the inner dimensions of the positioning block 46. A limit ring is fixedly connected to the outer surface of one end of the rotating rod 44, and an insertion ring is fixedly connected to one end of the positioning block 46. The outer diameter of the insertion ring is adapted to the inner diameter of the second movable groove 411. This design makes the positioning block 46 more stable when it moves on the outer surface of the rotating rod 44, and avoids the positioning block 46 from detaching from the outer surface of the rotating rod 44 when it moves on the outer surface of the rotating rod 44. At the same time, this design makes the insertion ring more stable when it is inserted into the inner surface of the second movable groove 411, thereby positioning the positions of the first connecting plate 41 and the second connecting plate 410.
[0030] A support ring is fixedly connected to the outer surface of the spring 49. The outer surfaces of both ends of the spring 49 abut against the surface of one side of the support ring and the inner wall surface of the inner side of the mounting sleeve 47, respectively. The outer dimensions of the lower end of the positioning rod 48 are adapted to the inner dimensions of the positioning hole 45. A guide block is fixedly connected to the bottom surface of the rotating rod 44. A guide groove is opened on the bottom surface inside the positioning block 46, and the inner dimensions of the guide groove are adapted to the outer dimensions of the guide block. This design allows the positioning rod 48 to return to its original position under the elasticity of the spring 49 after moving inside the mounting sleeve 47, and drives the outer surface of the lower end of the positioning rod 48 to be inserted into the positioning hole 45. This makes the positioning rod 48 more stable when inserted into the positioning hole 45. At the same time, this design prevents the positioning block 46 from deflecting when moving on the outer surface of the rotating rod 44.
[0031] Working principle: When using the equipment, first place the equipment in a suitable position, align the positions of the first connecting plate 41 and the second connecting plate 410, then rotate the rotating rod 44 so that one end of the rotating rod 44 is inserted into the interior of the second movable groove 411. Next, move the position of the positioning block 46 on the outer surface of the rotating rod 44 so that the insertion ring is inserted into the interior of the second movable groove 411, and the outer surface of the lower end of the positioning rod 48 is inserted into the interior of the positioning hole 45. Position the positioning block 46 on the outer surface of the rotating rod 44, thereby connecting the foaming structure 2 with the air inlet pipe 5 and the output pipe 6, and connecting the water inlet connecting pipe 3 and the water inlet pipe 7. By injecting clean water into the water inlet pipe 7, the water flows through the water inlet connecting pipe 3 into the diversion tank 21, and then through multiple sets of water inlet holes 22 into the pressure-resistant shell 1. At the same time, nitrogen can be injected into the air inlet pipe 5, so that the nitrogen enters the connecting seat 23 and the air inlet rod 24. Then, the nitrogen can be diverted through multiple sets of air inlet holes 25, so that the diverted nitrogen enters the pressure-resistant shell 1. The spiral design of the spiral blade 27 ensures that the diverted water and nitrogen are fully mixed inside the pressure-resistant shell 1, thereby increasing the density of the foam and thus avoiding a reduction in the sand-carrying capacity of the equipment.
[0032] When disassembly is required, the positioning rod 48 can be pulled upward to disengage the lower end of the positioning rod 48 from the interior of the positioning hole 45. At this time, the position of the positioning block 46 can be moved outward from the outer surface of the rotating rod 44 to disengage the insertion ring from the interior of the second movable groove 411. Then, the rotating rod 44 can be rotated to disengage one end of the rotating rod 44 from the interior of the second movable groove 411. This allows for the disassembly of the bubbling structure 2 from the air inlet pipe 5 and the output pipe 6, as well as the disassembly of the water inlet connection pipe 3 and the water inlet pipe 7. This method is time-saving and labor-saving, and facilitates the installation or disassembly of the equipment. The above is the complete working principle of this utility model.
[0033] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0034] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high pressure nitrogen gas foam regulator characterized by, include: The pressure-resistant shell (1) has a foaming structure (2) inside and a water inlet pipe (3) fixedly connected to the outer surface of one side of the pressure-resistant shell (1). Both ends of the foaming structure (2) and one end of the water inlet pipe (3) are provided with a connecting structure (4). The two ends of the foaming structure (2) are respectively connected to an air inlet pipe (5) and an output pipe (6). One end of the water inlet pipe (3) is connected to a water inlet pipe (7), and the outer surface of the water inlet pipe (3) is connected to a spare pipe (8). The spare pipe (8) is equipped with a valve inside. The foaming structure (2) includes a diversion channel (21), a connecting seat (23) and a liquid outlet pipe (28), and the diversion channel (21) is opened inside the inner wall surface of one side of the pressure-resistant shell (1); The connection structure (4) includes a first connecting plate (41), and the first connecting plate (41) is provided in multiple sets, and the multiple sets of the first connecting plate (41) are respectively fixedly connected to the outer surface of one end of the air inlet pipe (5), the output pipe (6) and the water inlet pipe (7).
2. A high pressure nitrogen gas foam regulator according to claim 1, wherein: The foaming structure (2) also includes a water inlet (22), which is located on the inner wall surface of one side of the diversion groove (21). Multiple sets of water inlets (22) are provided. The connecting seat (23) is engaged with the inner surface of one end of the pressure-resistant shell (1). An air inlet rod (24) is connected to the outer surface of one end of the connecting seat (23). Air inlets (25) are provided on the inner wall surfaces of both sides of the air inlet rod (24), and multiple sets of air inlets (25) are provided. The air inlet rod (24)... 4) Support frames (26) are fixedly connected to the outer surfaces of both ends, and spiral blades (27) are fixedly connected to the outer surface of the middle position of the air intake rod (24). The outer surface of the support frame (26) is fixedly connected to the inner wall surface of the pressure-resistant shell (1). The liquid outlet pipe (28) is fixedly connected to the outer surface of the other end of the pressure-resistant shell (1). One end of the liquid outlet pipe (28) is connected to the inside of the output pipe (6), and the inside of the liquid outlet pipe (28) is connected to the inside of the spare pipe (8).
3. A high pressure nitrogen gas foam regulator according to claim 2, wherein: The pressure-resistant outer shell (1), the diversion channel (21), and the water inlet connecting pipe (3) are connected internally, and the spiral blade (27) is spiral-shaped.
4. A high pressure nitrogen gas foam regulator as defined in claim 1, wherein: The first connecting plate (41) has a first movable groove (42) inside the outer surface of both ends. The inner wall surface of the first movable groove (42) has a rotating groove (43) inside. A rotating rod (44) is engaged inside the rotating groove (43). A positioning hole (45) is opened inside the outer surface of one end of the rotating rod (44). A positioning block (46) is sleeved on the outer surface of the rotating rod (44). An installation sleeve (47) is fixedly connected to the upper outer surface of the positioning block (46). A positioning rod (48) is inserted inside the installation sleeve (47). A spring (49) is sleeved on the outer surface of the positioning rod (48). The other end of the connecting seat (23) is fixedly connected to a second connecting plate (410) at one end of the liquid outlet pipe (28) and the water inlet connecting pipe (3). The second connecting plate (410) has a second movable groove (411) inside the outer surface of both ends.
5. A high pressure nitrogen gas foam regulator according to claim 4, wherein: The external dimensions of one end of the rotating rod (44) are adapted to the internal dimensions of the positioning block (46). A limit ring is fixedly connected to the outer surface of one end of the rotating rod (44). An insertion ring is fixedly connected to one end of the positioning block (46), and the outer diameter of the insertion ring is adapted to the inner diameter of the second movable groove (411).
6. A high pressure nitrogen gas foam regulator as defined in claim 4, wherein: A support ring is fixedly connected to the outer surface of the spring (49). The outer surfaces of the two ends of the spring (49) respectively abut against the surface of one side of the support ring and the inner wall surface of one side of the mounting sleeve (47). The external dimensions of the lower end of the positioning rod (48) are adapted to the internal dimensions of the positioning hole (45). A guide block is fixedly connected to the bottom surface of the rotating rod (44). A guide groove is opened on the bottom surface inside the positioning block (46), and the internal dimensions of the guide groove are adapted to the external dimensions of the guide block.