Nitrogen production increasing pressurizing equipment

By introducing a quick-connect structure and a dual-filtration design into the pressurization equipment, combined with a pressure gauge and a pressure relief pipe, the problems of poor filtration effect and safety hazards in existing equipment have been solved, achieving efficient purification and safe delivery of nitrogen, and improving the assembly and maintenance efficiency of the equipment.

CN224364065UActive Publication Date: 2026-06-16SICHUAN HENGCHANGXING ENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HENGCHANGXING ENERGY TECH CO LTD
Filing Date
2025-08-14
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing pressurization equipment has a limited filtration effect, easily leaves impurities, has poor component connection sealing, is prone to air leakage, is cumbersome to disassemble and assemble, lacks a pressure relief mechanism, and poses safety hazards.

Method used

It adopts a quick-connect structure, combined with the double filter screen and fine filter plate of the filter box, and the sliding connection design facilitates maintenance; the independent inlet and outlet gas pipes of the gas storage tank are equipped with a pressure gauge and pressure relief pipe, and a safety valve to ensure nitrogen purity and equipment safety; the quick-connect is achieved through the insertion post and positioning pin to prevent leakage.

🎯Benefits of technology

It achieves efficient nitrogen purification, avoids impurities from damaging equipment, ensures smooth delivery, reduces waste, improves safety and equipment assembly and maintenance efficiency, prevents nitrogen leakage, and ensures equipment safety.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224364065U_ABST
    Figure CN224364065U_ABST
Patent Text Reader

Abstract

The utility model relates to nitrogen gas production increasing pressurization technical field especially is a kind of pressurizing equipment for nitrogen gas production increasing, including nitrogen cylinder, the top opening of nitrogen cylinder is equipped with the one end of first connecting pipe, the other end of first connecting pipe is engaged in the top opening of filter box, the bottom opening of filter box is equipped with the one end of second connecting pipe, the other end of second connecting pipe is inserted in the air inlet end of booster pump, the air outlet end of booster pump is inserted with third connecting pipe, the other end of third connecting pipe is engaged in the air inlet end of gas holder, the air outlet end of gas holder is equipped with fourth connecting pipe;The first connecting pipe, second connecting pipe, third connecting pipe, fourth connecting pipe and the port connection of nitrogen cylinder, filter box, gas holder are all equipped with quick connector. Double filtration is realized in filter box in the device, pressure gauge can show pressure in gas holder, pressure relief pipe cooperates with safety valve to automatically relieve overpressure, improves safety, quick connector is positioned tightly to prevent leakage, and is efficiently disassembled.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen production enhancement and pressurization technology, specifically to a pressurization device for increasing nitrogen production. Background Technology

[0002] Nitrogen enhancement is a technique in oil and gas extraction that increases oil recovery by injecting nitrogen into the reservoir. Utilizing the inertness and low adsorption properties of nitrogen, it replenishes formation energy, displaces crude oil, reduces crude oil viscosity, and improves flowability. It is suitable for complex reservoirs with low permeability and high viscosity, thereby improving crude oil extraction efficiency. Pressurization equipment is the general term for the equipment used in nitrogen enhancement systems to increase nitrogen pressure. Through compression and pressurization processes, the nitrogen pressure is increased to a level that meets the reservoir injection requirements, ensuring that nitrogen can be effectively injected into the formation and exert its displacement effect. It is the core equipment for achieving high-pressure nitrogen injection.

[0003] Current pressurization equipment suffers from several drawbacks: limited filtration effectiveness, easy residue buildup leading to wear and tear on subsequent equipment, poor sealing of component connections resulting in leaks, cumbersome disassembly and assembly, delayed pressure detection, lack of pressure relief mechanisms, and potential safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a pressurization device for increasing nitrogen production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressurizing device for increasing nitrogen production, comprising a nitrogen cylinder, a first connecting pipe at the top opening of the nitrogen cylinder, the other end of the first connecting pipe being engaged with the top opening of a filter box, a second connecting pipe at the bottom opening of the filter box, the other end of the second connecting pipe being inserted into the inlet of a booster pump, a third connecting pipe being inserted into the outlet of the booster pump, the other end of the third connecting pipe being engaged with the inlet of a gas storage tank, and a fourth connecting pipe at the outlet of the gas storage tank;

[0006] Quick connectors are provided at the port connections of the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, and the nitrogen cylinder, the filter box, and the gas storage tank.

[0007] The beneficial effects of this utility model are as follows: the filter screen and fine filter plate of the filter box achieve dual filtration, purify nitrogen and prevent impurities from damaging the equipment; the sliding connection facilitates maintenance; the separation of the inlet and outlet pipes of the gas storage tank ensures smooth delivery; the outlet valve can adjust the nitrogen supply to reduce waste; the pressure gauge displays the pressure in real time; the pressure relief pipe works with the safety valve to automatically relieve pressure in case of overpressure, improving safety; the quick connector is quickly positioned and connected through the insertion post, slot and positioning pin to ensure tight and leak-proof connection; and the assembly and disassembly are efficient, improving the efficiency of equipment assembly and maintenance.

[0008] To achieve the sliding connection of the filter screen plate and the fine filter plate from top to bottom through the inner walls of the left and right sides of the filter box, impurities in the nitrogen gas can be removed to further purify the nitrogen gas and prevent impurities from entering subsequent equipment and causing wear or blockage:

[0009] The filter box is further configured such that a filter screen plate and a fine filter plate are slidably connected to the inner walls of the left and right sides from top to bottom.

[0010] By adopting the above technical solution, the filter screen plate and the fine filter plate are slidably connected from top to bottom on the inner walls of the left and right sides of the filter box. The filter screen plate can perform preliminary filtration to remove larger impurities in the nitrogen, and then the fine filter plate can perform fine filtration to further purify the nitrogen. This prevents impurities from entering subsequent equipment and causing wear or blockage, thereby improving the purity of the nitrogen. In addition, the sliding connection method makes it easier to disassemble, clean or replace the filter screen plate and the fine filter plate, which is convenient for later maintenance and ensures the stability of the filtration effect.

[0011] To ensure smoother storage and transport of nitrogen within the gas storage tank, inlet and outlet pipes and an outlet valve are installed on the left and right sides respectively. The outlet valve allows for flexible control of nitrogen output.

[0012] The gas storage tank is further configured such that an inlet pipe and an outlet pipe are respectively provided on the left and right sides, and an outlet valve is provided on the outer wall of the outlet pipe.

[0013] By adopting the above technical solution, an inlet pipe and an outlet pipe are respectively set on the left and right sides of the gas storage tank, and an outlet valve is provided on the outer wall of the outlet pipe. This allows the entry and exit of nitrogen to form independent channels, avoiding mutual interference between the two and ensuring smoother storage and transportation of nitrogen in the gas storage tank. The outlet valve can flexibly control the opening and closing of nitrogen output, making it easy to adjust the nitrogen supply according to the operation requirements and reduce unnecessary nitrogen waste.

[0014] To ensure the safety of personnel and equipment, the pressure gauge and pressure relief pipe at the top of the gas storage tank are connected, with a safety valve installed on the outer wall of the pressure relief pipe. The pressure gauge displays the nitrogen pressure inside the gas storage tank, and the pressure relief pipe, in conjunction with the safety valve, can automatically open to release pressure.

[0015] The gas storage tank is further configured such that a pressure gauge and a pressure relief pipe are arranged sequentially from left to right on the top of the tank, and a safety valve is provided on the outer wall of the pressure relief pipe.

[0016] By adopting the above technical solution, a pressure gauge and a pressure relief pipe are installed on the top of the gas storage tank, and a safety valve is installed on the outer wall of the pressure relief pipe. The pressure gauge can display the nitrogen pressure inside the gas storage tank, allowing operators to intuitively grasp the pressure status and ensure operation within the safe range. When the pressure inside the tank exceeds the safe value, the pressure relief pipe, in conjunction with the safety valve, can automatically open to release pressure and release excess pressure in a timely manner, effectively avoiding the danger of explosion of the gas storage tank due to excessive pressure. This greatly improves the safety and operational reliability of the equipment and protects the safety of personnel and equipment.

[0017] To achieve rapid positioning via the insertion of the pins into the slots in the quick-connect coupling, and with the locating pins penetrating the insertion holes, a tight and stable connection is ensured, preventing nitrogen leakage. This also shortens the connection time between components, improving efficiency during equipment assembly, maintenance, or component replacement.

[0018] The quick connector is further configured such that: the quick connector is provided with a connecting sleeve and a connecting socket; the surface of the connecting sleeve is provided with a slot; one end of the connecting socket near the slot is provided with a plug; the engagement point of the slot and the plug is provided with a plurality of insertion holes; and a positioning pin passes through the interior of the insertion hole.

[0019] By adopting the above technical solution, the quick connector structure achieves rapid positioning by inserting the pin into the slot when connecting various components. With the positioning pin penetrating the insertion hole, it can ensure the tightness and stability of the connection and effectively prevent nitrogen leakage. At the same time, the cooperation between the pin and the slot and the fixation of the positioning pin make the installation and disassembly process simple and quick, greatly shortening the connection time of various components and improving the efficiency of equipment assembly, maintenance or replacement of components.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the filter box of this utility model;

[0023] Figure 3 This is a schematic diagram of the gas storage tank of this utility model;

[0024] Figure 4 This is a schematic diagram of the quick connector of this utility model;

[0025] Figure 5 This is a schematic diagram of the electrical process of this utility model.

[0026] In the diagram: 1. Nitrogen cylinder; 2. First connecting pipe; 3. Filter box; 301. Filter screen; 302. Fine filter plate; 4. Second connecting pipe; 5. Booster pump; 6. Third connecting pipe; 7. Gas storage tank; 701. Inlet pipe; 702. Outlet pipe; 703. Outlet valve; 704. Pressure gauge; 705. Pressure relief pipe; 706. Safety valve; 8. Fourth connecting pipe; 9. Quick connector; 901. Connecting sleeve; 902. Connecting socket; 903. Slot; 904. Insert post; 905. Insert hole; 906. Positioning pin. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0028] Please see Figures 1 to 5 A pressurizing device for increasing nitrogen production includes a nitrogen cylinder 1. The top opening of the nitrogen cylinder 1 is provided with one end of a first connecting pipe 2. The other end of the first connecting pipe 2 is engaged with the top opening of a filter box 3. The bottom opening of the filter box 3 is provided with one end of a second connecting pipe 4. The other end of the second connecting pipe 4 is inserted into the air inlet of a booster pump 5. The air outlet of the booster pump 5 is connected to a third connecting pipe 6. The other end of the third connecting pipe 6 is engaged with the air inlet of a gas storage tank 7. The air outlet of the gas storage tank 7 is provided with a fourth connecting pipe 8.

[0029] Quick connectors 9 are provided at the port connections of the first connecting pipe 2, the second connecting pipe 4, the third connecting pipe 6, the fourth connecting pipe 8, the nitrogen cylinder 1, the filter box 3, and the gas storage tank 7.

[0030] In this embodiment, as Figure 1 and Figure 2 As shown, the filter box 3 has a filter screen plate 301 and a fine filter plate 302 slidably connected to the inner walls of the left and right sides from top to bottom.

[0031] In this embodiment, as Figure 1 and Figure 3 and Figure 5 As shown, the gas storage tank 7 has an inlet pipe 701 and an outlet pipe 702 on its left and right sides, respectively, and the outer wall of the outlet pipe 702 is provided with an outlet valve 703.

[0032] In this embodiment, as Figure 1 and Figure 3 and Figure 5 As shown, the top of the gas storage tank 7 is provided with a pressure gauge 704 and a pressure relief pipe 705 from left to right, and a safety valve 706 is provided on the outer wall of the pressure relief pipe 705.

[0033] In this embodiment, as Figure 1 and Figure 4As shown, the quick connector 9 is provided with a connecting sleeve 901 and a connecting socket 902. The surface of the connecting sleeve 901 is provided with a slot 903. The end of the connecting socket 902 near the slot 903 is provided with a plug 904. Several holes 905 are provided at the engagement of the slot 903 and the plug 904. A positioning pin 906 passes through the inside of the hole 905.

[0034] The computer software involved in the hardware carriers such as the booster pump in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0035] Therefore, the "booster pump" and "safety valve" involved in this application are physical functional modules that combine computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in these physical functional modules are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction between the various physical functional modules, that is, the improvement of the overall structure of the pressurization equipment of this application, so as to solve the corresponding technical problems to be solved by this application.

[0036] The working process of this nitrogen production enhancement pressurization equipment is as follows:

[0037] First, the operator can connect and fix the components using quick connectors 9. Specifically, connect the connecting sleeves 901 at the port of each component to the connecting sockets 902 at the corresponding pipe port, so that the inserts 904 can be aligned with the slots 903 and inserted. Then, insert the positioning pins 906 through the overlapping insertion holes 905. This will sequentially connect the nitrogen cylinder 1 to the first connecting pipe 2, the first connecting pipe 2 to the top opening of the filter box 3, the bottom opening of the filter box 3 to the second connecting pipe 4, the third connecting pipe 6 to the inlet pipe 701 of the gas storage tank 7, and the outlet pipe 702 of the gas storage tank 7 to the fourth connecting pipe 8, ensuring that all connections are tightly fixed by quick connectors 9.

[0038] After the connection is completed, the operator can open the nitrogen cylinder 1 and start the booster pump 5 (model: sv20-1p11 p-ic) through the external controller (model: S705-SJ), so that the nitrogen flows out from the nitrogen cylinder 1 and is transported to the filter box 3 through the first connecting pipe 2. In the filter box 3, it first passes through the filter screen plate 301 for preliminary filtration to remove larger impurities, and then flows through the fine filter plate 302 for fine filtration to further purify the nitrogen.

[0039] The filtered nitrogen enters the inlet of the booster pump 5 through the second connecting pipe 4, and after being pressurized by the booster pump 5, it flows out from its outlet and is transported to the inlet pipe 701 of the gas storage tank 7 through the third connecting pipe 6, and finally enters the gas storage tank 7 for storage.

[0040] During this process, the operator can observe the pressure gauge 704 on the top of the gas storage tank 7 at all times and monitor the nitrogen pressure inside the tank. If the pressure inside the tank exceeds the safe range, the safety valve 706 (model: AL-4T) on the pressure relief pipe 705 on the top of the gas storage tank 7 will be opened under the control of the external controller, thereby releasing the excess pressure through the pressure relief pipe 705 to ensure equipment safety.

[0041] When nitrogen is needed for production enhancement, the operator can open the outlet valve 703 on the outer wall of the outlet pipe 702 of the gas storage tank 7, so that the high-pressure nitrogen in the gas storage tank 7 flows into the fourth connecting pipe 8 through the outlet pipe 702, and is finally transported to the work area through the fourth connecting pipe 8, thus completing the entire process of nitrogen pressurization, storage and supply.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A pressurization device for increasing nitrogen production, comprising a nitrogen cylinder (1), characterized in that: The nitrogen cylinder (1) has a first connecting pipe (2) at its top opening, and the other end of the first connecting pipe (2) is engaged with the top opening of the filter box (3). The filter box (3) has a second connecting pipe (4) at its bottom opening, and the other end of the second connecting pipe (4) is inserted into the air inlet of the booster pump (5). The booster pump (5) has a third connecting pipe (6) at its outlet, and the other end of the third connecting pipe (6) is engaged with the air inlet of the gas storage tank (7). The gas storage tank (7) has a fourth connecting pipe (8) at its outlet. Quick connectors (9) are provided at the port connections of the first connecting pipe (2), the second connecting pipe (4), the third connecting pipe (6), the fourth connecting pipe (8), the nitrogen cylinder (1), the filter box (3), and the gas storage tank (7).

2. The pressurization device for increasing nitrogen production as described in claim 1, characterized in that: The filter box (3) has a filter screen plate (301) and a fine filter plate (302) slidably connected from top to bottom on the inner walls of the left and right sides.

3. The pressurization device for increasing nitrogen production as described in claim 1, characterized in that: The gas storage tank (7) is provided with an inlet pipe (701) and an outlet pipe (702) on its left and right sides respectively, and the outer wall of the outlet pipe (702) is provided with an outlet valve (703).

4. The pressurization device for increasing nitrogen production as described in claim 1, characterized in that: The top of the gas storage tank (7) is provided with a pressure gauge (704) and a pressure relief pipe (705) from left to right, and a safety valve (706) is provided on the outer wall of the pressure relief pipe (705).

5. The pressurization device for increasing nitrogen production as described in claim 1, characterized in that: The quick connector (9) is provided with a connecting sleeve (901) and a connecting socket (902). The surface of the connecting sleeve (901) is provided with a slot (903). The end of the connecting socket (902) near the slot (903) is provided with a pin (904). The engagement point of the slot (903) and the pin (904) is provided with a plurality of holes (905). A positioning pin (906) passes through the interior of the hole (905).